@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ============================================================
   Zeminer — Industrial Skeuomorphism design system
   palette synced to logo · neumorphic depth · mechanical motion
   ============================================================ */

:root {
  /* ---------- Surfaces (logo-synced) ---------- */
  --chassis:        #E5E7E5;  /* Level 0 — page chassis */
  --chassis-warm:   #ECEEEC;  /* Level 0+ — slightly raised tonal shift */
  --panel:          #F4F4F2;  /* Level +1 — raised panel (logo bg) */
  --recessed:       #D2D5D2;  /* Level -1 — sunk surfaces */
  --recessed-deep:  #BFC2BF;

  /* ---------- Ink ---------- */
  --ink:            #1A1C1E;  /* primary text — logo black */
  --ink-2:          #2B2D2F;
  --ink-muted:      #5A5C5E;  /* WCAG AA on chassis */
  --ink-faint:      #8B8D8A;

  /* ---------- Accent (logo terracotta) ---------- */
  --accent:         #B23A2E;
  --accent-ink:     #8C322A;
  --accent-soft:    #B23A2E22;

  /* ---------- LED states ---------- */
  --led-on:         #22C55E;
  --led-warn:       #F59E0B;
  --led-alert:      #B23A2E;

  /* ---------- Neumorphic shadow pair ---------- */
  --sh-dark:        #C5C7C5;
  --sh-light:       #FFFFFF;
  --sh-deep:        #A8AAA8;

  /* Composed shadows — Level +1 panel */
  --shadow-card:     8px 8px 16px var(--sh-dark), -8px -8px 16px var(--sh-light);
  --shadow-float:    12px 12px 24px var(--sh-dark), -12px -12px 24px var(--sh-light), inset 1px 1px 0 rgba(255,255,255,.55);
  --shadow-pressed:  inset 6px 6px 12px var(--sh-dark), inset -6px -6px 12px var(--sh-light);
  --shadow-recessed: inset 4px 4px 8px var(--sh-dark), inset -4px -4px 8px var(--sh-light);
  --shadow-recessed-deep: inset 6px 6px 14px var(--sh-deep), inset -6px -6px 14px var(--sh-light);
  --shadow-sharp:    4px 4px 8px rgba(0,0,0,.15), -1px -1px 1px rgba(255,255,255,.85);
  --glow-accent:     0 0 14px 2px rgba(178,58,46,.55);
  --glow-led-on:     0 0 10px 2px rgba(34,197,94,.7);
  --glow-led-alert:  0 0 10px 2px rgba(178,58,46,.8);

  /* Dark accent surfaces (footer, hero device screen) */
  --dark-bg:        #1A1C1E;
  --dark-bg-2:      #25272A;
  --dark-text:      #F4F4F2;
  --dark-muted:     #A8B0AE;

  /* ---------- Radius ---------- */
  --r-sm:  4px;
  --r-md:  8px;
  --r-lg:  16px;
  --r-xl:  24px;
  --r-2xl: 32px;

  /* ---------- Type ---------- */
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Space Grotesk", "Inter", ui-sans-serif, system-ui, sans-serif;

  /* ---------- Layout ---------- */
  --pad-x:  clamp(20px, 4.2vw, 56px);
  --max:    1200px;
  --nav-h:  88px;
  --section-y: clamp(60px, 7vw, 104px);
  --section-head-gap: clamp(34px, 4.8vw, 64px);
  --grid-gap: clamp(18px, 2vw, 28px);
  --card-pad: clamp(22px, 2.4vw, 30px);

  /* ---------- Motion ---------- */
  --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease:   cubic-bezier(.2,.7,.15,1);
}

/* ============================================================
   Base
   ============================================================ */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--chassis);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11", "tnum";
  overflow-x: hidden;
  position: relative;
}
/* Subtle plastic noise overlay across the whole chassis */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='.25'/></svg>");
  mix-blend-mode: overlay;
  opacity: .55;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
::selection { background: var(--accent); color: #fff; }

/* Scroll offset for sticky nav */
section[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* Hide legacy frame element if present */
.frame { display: none !important; }

/* Reveal baseline */
[data-reveal] { opacity: 0; transform: translateY(18px); }
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ============================================================
   Reusable: stamped label / LED / screw / vent
   ============================================================ */
.stamp {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.led {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--led-on);
  box-shadow: var(--glow-led-on), inset 0 1px 1px rgba(255,255,255,.5);
}
.led--alert { background: var(--led-alert); box-shadow: var(--glow-led-alert), inset 0 1px 1px rgba(255,255,255,.4); }
.led--idle  { background: var(--ink-faint); box-shadow: none; }

/* Card with screws + vents — applied via .has-screws class */
.has-screws {
  position: relative;
  background:
    radial-gradient(circle at 14px 14px, rgba(0,0,0,.18) 1.5px, transparent 2.5px),
    radial-gradient(circle at calc(100% - 14px) 14px, rgba(0,0,0,.18) 1.5px, transparent 2.5px),
    radial-gradient(circle at 14px calc(100% - 14px), rgba(0,0,0,.18) 1.5px, transparent 2.5px),
    radial-gradient(circle at calc(100% - 14px) calc(100% - 14px), rgba(0,0,0,.18) 1.5px, transparent 2.5px),
    var(--chassis);
}
.has-screws::before {
  /* highlights on screws (top-left light) */
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle at 13px 13px, rgba(255,255,255,.7) .8px, transparent 1.5px),
    radial-gradient(circle at calc(100% - 15px) 13px, rgba(255,255,255,.7) .8px, transparent 1.5px),
    radial-gradient(circle at 13px calc(100% - 15px), rgba(255,255,255,.7) .8px, transparent 1.5px),
    radial-gradient(circle at calc(100% - 15px) calc(100% - 15px), rgba(255,255,255,.7) .8px, transparent 1.5px);
}

.vents {
  display: inline-flex; gap: 4px;
  position: absolute; top: 14px; right: 38px;
}
.vents span {
  width: 2px; height: 18px; border-radius: 999px;
  background: var(--recessed);
  box-shadow: inset 1px 1px 2px rgba(0,0,0,.18);
}

/* ============================================================
   Navigation — chassis bar, sticky, neumorphic shelf
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 90;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(18px, 3vw, 42px);
  padding: 14px var(--pad-x);
  min-height: var(--nav-h);
  background: var(--chassis);
  transition: box-shadow .35s var(--ease), background .35s var(--ease);
}
.nav.is-stuck {
  background: color-mix(in oklab, var(--chassis) 90%, transparent);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  box-shadow: 0 6px 14px rgba(0,0,0,.06), inset 0 -1px 0 rgba(0,0,0,.04);
}

.nav__brand { display: inline-flex; align-items: center; }
.brand__logo { height: 36px; width: auto; display: block; }
.nav.is-stuck .brand__logo { height: 32px; }
.foot__brand .brand__logo {
  height: clamp(48px, 6.5vw, 78px);
  filter: invert(1) brightness(1.04);
}

.nav__links {
  display: flex;
  justify-content: center;
  gap: clamp(10px, 1.6vw, 22px);
}
.nav__links a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--ink-2);
  transition: color .2s var(--ease), box-shadow .25s var(--ease), background .2s var(--ease);
}
.nav__links a .i {
  font-size: 9px;
  color: var(--accent);
  letter-spacing: .12em;
}
.nav__links a:hover {
  color: var(--accent);
  background: var(--chassis-warm);
  box-shadow: var(--shadow-recessed);
}

.nav__meta { display: inline-flex; align-items: center; gap: 12px; }

/* ============================================================
   CTA — physical key
   ============================================================ */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--r-md);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--ink);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  transition: transform .15s var(--ease), box-shadow .25s var(--ease), color .2s var(--ease), background .25s var(--ease);
  white-space: nowrap;
}
.cta:hover {
  color: var(--accent);
  box-shadow: var(--shadow-float);
}
.cta:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-pressed);
  transition-duration: 80ms;
}

.cta--solid {
  background: var(--accent);
  color: #fff;
  box-shadow:
    6px 6px 14px rgba(140,50,42,.45),
    -6px -6px 14px rgba(212,82,72,.35),
    inset 1px 1px 0 rgba(255,255,255,.25);
}
.cta--solid:hover {
  color: #fff;
  background: var(--accent);
  filter: brightness(1.08);
  box-shadow:
    9px 9px 22px rgba(140,50,42,.55),
    -9px -9px 22px rgba(212,82,72,.45),
    inset 1px 1px 0 rgba(255,255,255,.3),
    var(--glow-accent);
}
.cta--solid:active {
  filter: brightness(.95);
  box-shadow:
    inset 5px 5px 10px rgba(140,50,42,.55),
    inset -5px -5px 10px rgba(212,82,72,.4);
}

.cta--ghost {
  background: var(--chassis);
  color: var(--ink);
  box-shadow: var(--shadow-card);
}
.cta--link {
  background: transparent;
  box-shadow: none;
  color: var(--ink-muted);
  padding: 8px 12px;
  min-height: 0;
}
.cta--link:hover {
  color: var(--accent);
  background: var(--chassis-warm);
  box-shadow: var(--shadow-recessed);
}
.cta--center { display: inline-flex; margin: 36px auto 0; }

/* ============================================================
   Language switcher — dropdown panel
   ============================================================ */
.lang { position: relative; }
.lang__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--r-md);
  background: var(--chassis);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink-2);
  box-shadow: var(--shadow-card);
  transition: box-shadow .25s var(--ease), color .2s var(--ease), transform .15s var(--ease);
}
.lang__btn:hover { color: var(--accent); box-shadow: var(--shadow-float); }
.lang.is-open .lang__btn {
  transform: translateY(1px);
  box-shadow: var(--shadow-pressed);
  color: var(--accent);
}

.lang__menu {
  position: absolute;
  top: calc(100% + 10px); right: 0;
  min-width: 184px;
  padding: 8px;
  margin: 0;
  list-style: none;
  background: var(--panel);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-float);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .22s var(--ease), transform .25s var(--spring), visibility .22s;
  z-index: 95;
}
.lang.is-open .lang__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang__menu a {
  display: block;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  transition: background .18s var(--ease), color .18s var(--ease);
}
.lang__menu a:hover { background: var(--chassis-warm); color: var(--accent); }
.lang__menu [aria-current="true"] { color: var(--accent); }

/* ============================================================
   HERO — Industrial Device with full-bleed slider screen
   ============================================================ */
.hero {
  position: relative;
  padding: clamp(24px, 3vw, 40px) var(--pad-x) clamp(20px, 2vw, 32px);
  display: grid;
  align-items: stretch;
}

/* Hero intro — text block on chassis below the slider device */
.hero-intro {
  position: relative;
  isolation: isolate;
  max-width: none;
  min-height: clamp(560px, 72vh, 780px);
  margin: 0;
  padding: clamp(72px, 9vw, 132px) var(--pad-x);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(16px, 1.6vw, 24px);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(12,14,16,.95) 0%, rgba(12,14,16,.86) 36%, rgba(12,14,16,.44) 62%, rgba(12,14,16,.10) 100%),
    url("../../resimler/back.png") center / cover no-repeat,
    var(--dark-bg);
}
.hero-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,.58)),
    radial-gradient(circle at 18% 52%, rgba(178,58,46,.26), transparent 34%);
}
.hero-intro > * {
  position: relative;
  z-index: 1;
  width: min(680px, 100%);
  margin-left: max(0px, calc((100vw - var(--max)) / 2));
}
.hero-intro .hero__kicker {
  color: rgba(244,244,242,.86);
  text-shadow: 0 2px 10px rgba(0,0,0,.55);
}
.hero-intro .hero__kicker .dot {
  background: var(--accent);
  box-shadow: var(--glow-accent);
}
.hero-intro .hero__title {
  color: var(--dark-text);
  text-shadow: 0 3px 22px rgba(0,0,0,.56);
  max-width: 12ch;
}
.hero-intro .hero__title em {
  color: #F4F4F2;
  text-shadow: 0 0 22px rgba(178,58,46,.38), 0 3px 20px rgba(0,0,0,.6);
}
.hero-intro .hero__lede {
  color: rgba(244,244,242,.88);
  text-shadow: 0 2px 12px rgba(0,0,0,.5);
}
.hero-intro .hero__ctas { margin-top: 8px; }
.hero-intro .cta--link {
  color: var(--dark-text);
  background: rgba(244,244,242,.08);
  box-shadow: inset 0 0 0 1px rgba(244,244,242,.18);
}
.hero-intro .cta--link:hover {
  color: #fff;
  background: rgba(178,58,46,.82);
}

/* The "device" — chassis bezel with screws + vents wrapping the screen */
.hero__visual {
  position: relative;
  width: 100%;
  min-height: clamp(460px, 78vh, 760px);
  padding: clamp(14px, 1.6vw, 22px);
  background: var(--chassis);
  border-radius: var(--r-2xl);
  box-shadow: var(--shadow-float);
  overflow: hidden;
}
/* 4 screws */
.hero__visual::before {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18px 18px, rgba(0,0,0,.28) 2.4px, rgba(0,0,0,.12) 3.4px, transparent 4.4px),
    radial-gradient(circle at calc(100% - 18px) 18px, rgba(0,0,0,.28) 2.4px, rgba(0,0,0,.12) 3.4px, transparent 4.4px),
    radial-gradient(circle at 18px calc(100% - 18px), rgba(0,0,0,.28) 2.4px, rgba(0,0,0,.12) 3.4px, transparent 4.4px),
    radial-gradient(circle at calc(100% - 18px) calc(100% - 18px), rgba(0,0,0,.28) 2.4px, rgba(0,0,0,.12) 3.4px, transparent 4.4px);
  z-index: 5;
}
.hero__visual::after {
  /* screw highlights (top-left light source) */
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 16.5px 16.5px, rgba(255,255,255,.85) .9px, transparent 1.7px),
    radial-gradient(circle at calc(100% - 19.5px) 16.5px, rgba(255,255,255,.85) .9px, transparent 1.7px),
    radial-gradient(circle at 16.5px calc(100% - 19.5px), rgba(255,255,255,.85) .9px, transparent 1.7px),
    radial-gradient(circle at calc(100% - 19.5px) calc(100% - 19.5px), rgba(255,255,255,.85) .9px, transparent 1.7px);
  z-index: 6;
}

/* The screen */
.hero__plate {
  position: relative;
  width: 100%; height: 100%;
  min-height: inherit;
  border-radius: var(--r-xl);
  background: var(--dark-bg);
  box-shadow:
    inset 6px 6px 14px rgba(0,0,0,.6),
    inset -6px -6px 14px rgba(255,255,255,.04);
  overflow: hidden;
}
/* Scanlines overlay */
.hero__plate::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(rgba(255,255,255,0) 50%, rgba(0,0,0,.18) 50%);
  background-size: 100% 4px;
  mix-blend-mode: multiply;
  opacity: .35;
  pointer-events: none;
  z-index: 3;
}
/* Subtle vignette + tonal lift */
.hero__plate::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 80% at 30% 20%, rgba(255,255,255,.06), transparent 60%),
    linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.55) 100%);
  pointer-events: none;
  z-index: 2;
}

/* Slider mechanics */
.hero-slider { position: absolute; inset: 0; overflow: hidden; }
.hero-slider__slide {
  position: absolute; inset: 0;
  margin: 0;
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 1s var(--ease), transform 6s linear;
  z-index: 1;
}
.hero-slider__slide.is-active { opacity: 1; transform: scale(1); }
.hero-slider__slide img {
  width: 100%; height: 100%;
  object-fit: contain;
  object-position: center;
  background: var(--dark-bg);
  filter: saturate(.92) contrast(1.02) brightness(.95);
}

/* Content overlay — anchored bottom-left, leaves room for controls bottom-right */
.hero__grid {
  position: absolute;
  z-index: 4;
  left: clamp(24px, 3vw, 40px);
  bottom: clamp(60px, 7vh, 92px);
  width: min(64ch, calc(100% - clamp(48px, 6vw, 80px)));
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.4vw, 20px);
  color: var(--dark-text);
  text-shadow: 0 2px 6px rgba(0,0,0,.45);
}

.hero__kicker {
  display: inline-flex; align-items: center; gap: 10px;
  flex-wrap: wrap;
  max-width: 64ch;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: rgba(244,244,242,.85);
  line-height: 1.5;
}
.hero__kicker .dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--led-on);
  box-shadow: var(--glow-led-on), inset 0 1px 1px rgba(255,255,255,.5);
  animation: ledpulse 2.4s ease-in-out infinite;
  flex: 0 0 auto;
}
@keyframes ledpulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .55; }
}

.hero__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(40px, 6vw, 88px);
  font-weight: 800;
  line-height: .94;
  letter-spacing: -.03em;
  color: #fff;
}
.hero__title .line { display: block; }
.hero__title em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 20px rgba(178,58,46,.55), 0 2px 6px rgba(0,0,0,.55);
}

.hero__lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.15vw, 18px);
  line-height: 1.6;
  color: rgba(244,244,242,.92);
  font-weight: 400;
}
.hero__ctas { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 6px; }
.hero .cta--ghost {
  background: rgba(244,244,242,.08);
  color: #fff;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.18),
    0 6px 18px rgba(0,0,0,.35);
  backdrop-filter: blur(8px);
}
.hero .cta--ghost:hover { background: rgba(244,244,242,.16); color: #fff; }

/* Slider chrome — label top-left, controls bottom-right */
.hero__plate-label {
  position: absolute;
  z-index: 4;
  top: clamp(22px, 3vh, 30px);
  left: clamp(24px, 3vw, 40px);
  display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 15px;
  border-radius: 999px;
  background: rgba(26,28,30,.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.08),
    0 6px 16px rgba(0,0,0,.4);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: rgba(244,244,242,.85);
}
.hero__plate-label::before {
  content: "";
  width: 7px; height: 7px;
  background: var(--led-alert);
  border-radius: 50%;
  box-shadow: var(--glow-led-alert);
  animation: ledpulse 2.4s ease-in-out infinite;
}

.hero-slider__controls {
  position: absolute;
  z-index: 4;
  bottom: clamp(22px, 3vh, 30px);
  right: clamp(24px, 3vw, 40px);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(26,28,30,.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.08),
    0 8px 18px rgba(0,0,0,.45);
}
.hero-slider__btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--sans);
  font-size: 18px;
  color: rgba(244,244,242,.92);
  background: rgba(244,244,242,.06);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.14);
  transition: transform .15s var(--ease), background .2s var(--ease), color .2s var(--ease);
}
.hero-slider__btn:hover { background: rgba(178,58,46,.85); color: #fff; }
.hero-slider__btn:active { transform: translateY(1px) scale(.96); }
.hero-slider__dots { display: inline-flex; align-items: center; gap: 7px; padding: 0 6px; }
.hero-slider__dots span {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(244,244,242,.28);
  transition: background .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.hero-slider__dots span.is-active {
  background: var(--accent);
  box-shadow: var(--glow-accent);
  transform: scale(1.15);
}

/* Scroll cue */
.hero__scroll {
  position: absolute; left: 50%; bottom: 18px;
  transform: translateX(-50%);
  display: inline-flex; flex-direction: column; align-items: center; gap: 6px;
  z-index: 5;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .22em;
  color: var(--ink-muted);
}
.hero__scroll .line-v {
  width: 1px; height: 38px;
  background: linear-gradient(var(--ink-2), transparent);
  transform-origin: top;
  animation: dropline 2.4s var(--ease) infinite;
}
@keyframes dropline {
  0%   { transform: scaleY(0); }
  50%  { transform: scaleY(1); }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   PROOF STRIP — 4 bolted modules
   ============================================================ */
.proof-strip {
  padding: clamp(28px, 3vw, 44px) var(--pad-x) clamp(40px, 5vw, 64px);
  max-width: var(--max);
  margin: 0 auto;
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 1.6vw, 22px);
  margin: 0; padding: 0;
}
.hero__stats > div {
  position: relative;
  padding: 22px 22px 18px;
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.hero__stats > div::before,
.hero__stats > div::after {
  /* two screws (top-left + bottom-right) */
  content: "";
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.7) .8px, rgba(0,0,0,.18) 1.5px, rgba(0,0,0,.08) 2.4px, transparent 3px);
}
.hero__stats > div::before { top: 10px; left: 10px; }
.hero__stats > div::after  { bottom: 10px; right: 10px; }
.hero__stats > div:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
}
.hero__stats dt {
  margin: 0;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.hero__stats dd {
  margin: 0;
  display: inline-flex; align-items: baseline; gap: 8px;
}
.hero__stats .num {
  font-family: var(--sans);
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--ink);
}
.hero__stats .u {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--ink-muted);
}

/* ============================================================
   Section primitives
   ============================================================ */
.section {
  padding: var(--section-y) var(--pad-x);
  max-width: var(--max);
  margin: 0 auto;
}
.section__head {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-bottom: var(--section-head-gap);
}
.section__index {
  display: inline-flex; align-items: center; gap: 10px;
  align-self: start;
  padding: 10px 16px;
  border-radius: var(--r-sm);
  background: var(--chassis);
  box-shadow: var(--shadow-recessed);
  font-family: var(--mono);
  font-size: clamp(12px, .95vw, 14px);
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--ink-muted);
  width: max-content;
}
.section__index::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow-accent);
}
.section__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(28px, 3.4vw, 50px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.025em;
  color: var(--ink);
  max-width: 22ch;
}
.section__title em {
  font-style: normal;
  color: var(--accent);
}

/* ============================================================
   PRODUCTS — bolted product modules
   ============================================================ */
.products { }
.product-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  align-items: stretch;
}
.product-grid--three { grid-template-columns: repeat(3, 1fr); }
.product-grid--four  { grid-template-columns: repeat(4, 1fr); }

.product {
  position: relative;
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.product::before {
  /* 4 screws (under children, behind link) */
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(circle at 14px 14px, rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at calc(100% - 14px) 14px, rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at 14px calc(100% - 14px), rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at calc(100% - 14px) calc(100% - 14px), rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at 13px 13px, rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at calc(100% - 15px) 13px, rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at 13px calc(100% - 15px), rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at calc(100% - 15px) calc(100% - 15px), rgba(255,255,255,.75) .7px, transparent 1.4px);
}
.product:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
}
.product__link {
  display: flex;
  flex-direction: column;
  color: inherit;
  height: 100%;
}
.product__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--recessed);
  box-shadow: inset 4px 4px 10px var(--sh-deep), inset -4px -4px 10px var(--sh-light);
  overflow: hidden;
  display: grid; place-items: center;
}
.product__visual img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: 18%;
  transition: transform .55s var(--ease), filter .4s var(--ease);
  filter: saturate(.95);
}
.product:hover .product__visual img {
  transform: scale(1.04);
  filter: saturate(1);
}
.product__placeholder {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--ink-faint);
}
.product__meta {
  padding: 22px 24px 26px;
  display: flex; flex-direction: column; gap: 8px;
  flex: 1;
}
.product__code {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--accent);
  width: max-content;
  padding: 4px 8px;
  border-radius: var(--r-sm);
  background: rgba(178,58,46,.08);
  box-shadow: inset 0 0 0 1px rgba(178,58,46,.2);
}
.product__name {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(20px, 1.5vw, 24px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.product__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ============================================================
   MANIFESTO — pillars as bolted modules
   ============================================================ */
.manifesto__body {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
}
.manifesto__lead {
  grid-column: 2 / -1;
  margin: 0 0 clamp(32px, 4vw, 48px);
  font-family: var(--sans);
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.55;
  color: var(--ink-2);
  font-weight: 400;
  max-width: 64ch;
}
.pillars {
  grid-column: 1 / -1;
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
}
.pillars li {
  position: relative;
  min-height: 230px;
  padding: var(--card-pad);
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 14px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.pillars li:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-float);
}
.pillars__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--chassis);
  box-shadow: var(--shadow-recessed);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--accent);
}
.pillars h3 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(18px, 1.4vw, 22px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.pillars p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ============================================================
   OPERATIONS — recessed slot rows
   ============================================================ */
.ops__rows {
  border-radius: var(--r-lg);
  background: var(--chassis-warm);
  box-shadow: var(--shadow-recessed);
  padding: 8px clamp(20px, 2.4vw, 32px);
}
.ops__row {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: clamp(20px, 4vw, 56px);
  padding: 22px 0;
  border-bottom: 1px solid rgba(0,0,0,.06);
  align-items: baseline;
}
.ops__row:last-child { border-bottom: 0; }
.ops__k {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.ops__v {
  font-family: var(--sans);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.55;
  color: var(--ink);
  max-width: 64ch;
}

/* ============================================================
   REACH — neumorphic geographic panel
   ============================================================ */
.reach__lede {
  max-width: 64ch;
  margin: 0 0 32px;
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.6;
  color: var(--ink-2);
}
.reach-map {
  display: grid;
  grid-template-columns: minmax(280px, 380px) 1fr;
  gap: var(--grid-gap);
  border-radius: var(--r-lg);
  padding: 0;
  margin-bottom: clamp(20px, 2.4vw, 32px);
}
.reach-map__panel {
  position: relative;
  padding: var(--card-pad);
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 12px;
}
.reach-map__panel::before,
.reach-map__panel::after {
  content: "";
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.7) .8px, rgba(0,0,0,.18) 1.5px, transparent 3px);
}
.reach-map__panel::before { top: 10px; left: 10px; }
.reach-map__panel::after  { bottom: 10px; right: 10px; }
.reach-map__label {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--accent);
  width: max-content;
}
.reach-map__label::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow-accent);
}
.reach-map__panel strong {
  font-family: var(--sans);
  font-size: clamp(20px, 1.7vw, 26px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.reach-map__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-muted);
}
.reach-map__visual {
  margin: 0;
  border-radius: var(--r-lg);
  background:
    linear-gradient(#A8AAA8 1px, transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg, #A8AAA8 1px, transparent 1px) 0 0/40px 40px,
    var(--recessed);
  box-shadow: var(--shadow-recessed-deep);
  overflow: hidden;
  display: grid;
  align-items: center; justify-content: center;
  min-height: 260px;
  padding: 20px;
}
.reach-map__visual img {
  width: 100%; height: auto; max-height: 360px;
  object-fit: contain;
  filter: grayscale(.2) saturate(.9) drop-shadow(0 4px 8px rgba(0,0,0,.18));
  mix-blend-mode: multiply;
}
.reach-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin-top: clamp(20px, 2.4vw, 32px);
}
.reach-proof span {
  position: relative;
  display: flex; flex-direction: column; gap: 4px;
  min-height: 112px;
  padding: 22px;
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.reach-proof span::before {
  content: "";
  position: absolute; top: 10px; left: 10px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.7) .8px, rgba(0,0,0,.18) 1.5px, transparent 3px);
}
.reach-proof strong {
  font-family: var(--sans);
  font-size: clamp(28px, 2.6vw, 38px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--accent);
}
/* Tighter scale for multi-token labels like "TSE · CE · ISO" */
.reach-proof span:nth-child(3) strong {
  font-size: clamp(20px, 1.9vw, 28px);
  letter-spacing: -.01em;
}

/* ============================================================
   CONTACT / RFQ — recessed input wells
   ============================================================ */
.rfq {
  display: flex; flex-direction: column; gap: 22px;
  width: min(980px, 100%);
  max-width: 980px;
  padding: clamp(24px, 3vw, 40px);
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  position: relative;
}
.rfq::before, .rfq::after {
  content: "";
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.7) .8px, rgba(0,0,0,.2) 1.6px, transparent 3.2px);
}
.rfq::before { top: 14px; left: 14px; }
.rfq::after  { bottom: 14px; right: 14px; }
.rfq__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: end;
}
.rfq label {
  display: flex; flex-direction: column; gap: 8px;
}
.rfq label > span {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--ink-muted);
}
.rfq input, .rfq textarea {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--chassis);
  border: 0;
  border-radius: var(--r-md);
  padding: 14px 16px;
  outline: none;
  box-shadow: var(--shadow-recessed);
  transition: box-shadow .25s var(--ease);
}
.rfq input::placeholder, .rfq textarea::placeholder { color: var(--ink-faint); }
.rfq input:focus-visible, .rfq textarea:focus-visible {
  box-shadow: var(--shadow-recessed), 0 0 0 2px var(--accent), var(--glow-accent);
}
.rfq__hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.rfq__full { width: 100%; }
.rfq textarea { resize: vertical; min-height: 110px; }
.rfq button[type="submit"] { align-self: end; }
.rfq__submit-row { align-items: end; }
.rfq__status {
  margin: 0;
  min-height: 22px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--ink-muted);
}
.rfq__status.is-success { color: var(--led-on); }
.rfq__status.is-error { color: var(--accent); }

/* ============================================================
   FOOTER — dark accent chassis
   ============================================================ */
.foot {
  position: relative;
  padding: clamp(56px, 7vw, 96px) var(--pad-x) 28px;
  margin-top: clamp(40px, 5vw, 80px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr);
  gap: clamp(28px, 5vw, 80px);
  background: var(--dark-bg);
  color: var(--dark-text);
  border-top-left-radius: var(--r-2xl);
  border-top-right-radius: var(--r-2xl);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.05),
    0 -8px 24px rgba(0,0,0,.08);
}
.foot a { color: var(--dark-muted); transition: color .2s var(--ease); }
.foot a:hover { color: #fff; }
.foot__brand p {
  margin: clamp(10px, 1.2vw, 14px) 0 0;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--dark-muted);
  line-height: 1.7;
}
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.social-link {
  width: 42px;
  height: 42px;
  display: inline-grid !important;
  place-items: center;
  border-radius: var(--r-md);
  background: rgba(244,244,242,.06);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.08),
    6px 6px 14px rgba(0,0,0,.22);
  color: var(--dark-muted);
  transition: transform .18s var(--ease), color .2s var(--ease), background .2s var(--ease), box-shadow .25s var(--ease);
}
.social-link svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
}
.social-link:hover {
  color: #fff;
  background: rgba(178,58,46,.86);
  transform: translateY(-2px);
  box-shadow: 8px 8px 18px rgba(0,0,0,.28), 0 0 16px rgba(178,58,46,.34);
}
.foot__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: clamp(22px, 3vw, 36px);
}
.foot__cols h4 {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--dark-muted);
}
.foot__cols a {
  display: block;
  padding: 6px 0;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
}
.foot__base {
  grid-column: 1 / -1;
  margin-top: clamp(36px, 4vw, 56px);
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex; justify-content: space-between; gap: 20px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--dark-muted);
}

/* ============================================================
   WhatsApp Floating Action Button
   ============================================================ */
.wa-fab {
  position: fixed;
  right: clamp(20px, 3vw, 32px);
  bottom: clamp(20px, 3vw, 32px);
  z-index: 80;
  width: 58px; height: 58px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: #25D366;
  color: #fff;
  box-shadow:
    8px 8px 18px rgba(37,150,80,.4),
    -6px -6px 14px rgba(255,255,255,.7),
    inset 1px 1px 0 rgba(255,255,255,.35);
  transition: transform .3s var(--spring), box-shadow .3s var(--ease), filter .25s var(--ease);
}
.wa-fab::after {
  /* breathing pulse ring */
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,.55);
  opacity: 0;
  animation: wa-pulse 2.6s ease-out infinite;
  pointer-events: none;
}
@keyframes wa-pulse {
  0%   { transform: scale(.85); opacity: 0; }
  35%  { opacity: .85; }
  100% { transform: scale(1.45); opacity: 0; }
}
.wa-fab:hover {
  transform: translateY(-3px);
  filter: brightness(1.05);
  box-shadow:
    12px 12px 24px rgba(37,150,80,.5),
    -8px -8px 16px rgba(255,255,255,.8),
    inset 1px 1px 0 rgba(255,255,255,.4),
    0 0 18px 4px rgba(37,211,102,.5);
}
.wa-fab:active {
  transform: translateY(1px) scale(.97);
  box-shadow:
    inset 5px 5px 10px rgba(20,150,70,.45),
    inset -5px -5px 10px rgba(80,230,140,.4);
}
.wa-fab svg { position: relative; z-index: 1; }

/* ============================================================
   Product detail pages — catalog layout
   ============================================================ */
.product-page {
  background: var(--chassis);
}
.product-page main {
  overflow: hidden;
}
.product-hero {
  position: relative;
  width: calc(100vw - clamp(40px, 8vw, 140px));
  max-width: none;
  margin: 0 auto;
  padding: clamp(42px, 5vw, 78px) 0 clamp(28px, 4vw, 54px);
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(420px, .7fr);
  gap: clamp(34px, 5vw, 86px);
  align-items: center;
}
.product-hero__copy {
  display: grid;
  gap: 16px;
  min-width: 0;
  max-width: 980px;
}
.product-hero__kicker,
.product-section__kicker {
  width: max-content;
  max-width: 100%;
  padding: 8px 12px;
  border-radius: var(--r-md);
  background: var(--chassis-warm);
  box-shadow: var(--shadow-recessed);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
}
.product-hero h1 {
  margin: 0;
  max-width: 12.8ch;
  font-size: clamp(54px, 5.4vw, 104px);
  line-height: .9;
  letter-spacing: -.04em;
}
.product-hero h1 em,
.product-section h1 em,
.product-section h2 em,
.use-band h2 em,
.packaging h2 em,
.faq h2 em {
  color: var(--accent);
  font-style: normal;
}
.product-hero__lede {
  margin: 0;
  max-width: 76ch;
  color: var(--ink-2);
  font-size: clamp(17px, 1.18vw, 21px);
  line-height: 1.65;
}

.system-proof {
  width: calc(100vw - clamp(40px, 8vw, 140px));
  margin: 0 auto;
  padding: 0 0 clamp(38px, 5vw, 72px);
}
.system-advantages {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--grid-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.system-advantages li {
  min-height: 96px;
  padding: 20px 22px;
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.38;
  display: flex;
  align-items: center;
}
.system-criteria {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--grid-gap);
  margin-top: 20px;
}
.system-criteria article,
.system-info__grid article {
  display: grid;
  gap: 12px;
  padding: var(--card-pad);
  border-radius: var(--r-lg);
  background: var(--ink);
  color: var(--dark-text);
  box-shadow: var(--shadow-card);
  min-height: 240px;
}
.system-criteria article:nth-child(even),
.system-info__grid article:nth-child(even) {
  background: var(--panel);
  color: var(--ink);
}
.system-criteria span,
.system-info__grid span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}
.system-criteria h2,
.system-info__grid h3 {
  margin: 0;
  font-size: clamp(22px, 1.8vw, 32px);
  line-height: 1;
  letter-spacing: -.03em;
}
.system-criteria p,
.system-info__grid p {
  margin: 0;
  color: currentColor;
  opacity: .78;
  line-height: 1.6;
}

.product-hero__figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  min-height: 0;
  border-radius: var(--r-xl);
  background: var(--dark-bg);
  box-shadow: var(--shadow-float);
  overflow: hidden;
}
.product-hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(.96) contrast(1.03);
}

.product-jump {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}
.product-jump a {
  min-height: 74px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--dark-text);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  font-weight: 800;
  font-size: clamp(18px, 1.4vw, 24px);
}
.product-jump span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
}

.use-band,
.product-detail,
.packaging,
.faq {
  width: calc(100vw - clamp(40px, 8vw, 140px));
  max-width: none;
  margin: 0 auto;
  padding: clamp(46px, 6vw, 82px) 0;
}
.use-band__head,
.faq__head {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(22px, 4vw, 52px);
  align-items: start;
  margin-bottom: clamp(22px, 3vw, 36px);
}
.use-band h2,
.faq h2,
.packaging h2,
.product-section h1,
.product-section h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: .96;
  letter-spacing: -.035em;
}
.use-band h2 {
  max-width: 18ch;
  font-size: clamp(30px, 3.2vw, 48px);
}
.use-band__gallery {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 16px;
}
.use-band__gallery figure,
.product-section__media figure,
.packaging__visual {
  margin: 0;
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.use-band__gallery figure {
  min-height: 280px;
}
.use-band__gallery figure:first-child {
  grid-row: span 2;
}
.use-band__gallery img,
.packaging__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail {
  display: grid;
  gap: clamp(32px, 5vw, 64px);
  padding-top: 0;
}
.product-single-main {
  padding-top: clamp(42px, 5vw, 78px);
}
.product-detail--single {
  padding-bottom: clamp(28px, 4vw, 56px);
}
.product-section {
  scroll-margin-top: calc(var(--nav-h) + 24px);
  display: grid;
  grid-template-columns: minmax(420px, .9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(28px, 4vw, 56px);
  border-radius: var(--r-xl);
  background: var(--chassis-warm);
  box-shadow: var(--shadow-card);
}
.product-section:nth-child(even) {
  background: var(--panel);
}
.product-section--single {
  align-items: start;
}
.product-single__lede {
  margin: 0;
  color: var(--ink-2);
  font-size: clamp(17px, 1.18vw, 21px);
  line-height: 1.6;
}
.product-section__media {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--grid-gap);
}
.product-section__media figure {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.product-section__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: clamp(12px, 1.2vw, 22px);
}
.product-section__body,
.packaging__copy {
  display: grid;
  gap: 18px;
  min-width: 0;
}
.product-package {
  display: grid;
  gap: 8px;
  padding: 18px;
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--dark-text);
}
.product-package strong {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
}
.product-package p {
  margin: 0;
  color: rgba(255,255,255,.82);
  line-height: 1.55;
}
.spec-list,
.packaging__list,
.faq-list,
.steps-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.spec-list,
.packaging__list {
  display: grid;
  gap: 10px;
}
.spec-list li,
.packaging__list li {
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--chassis);
  box-shadow: var(--shadow-recessed);
  color: var(--ink-2);
  line-height: 1.55;
}
.packaging {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
.packaging--single {
  padding-top: 0;
}
.packaging__copy p {
  margin: 0;
  color: var(--ink-2);
  font-size: clamp(16px, 1.2vw, 19px);
}
.packaging__visual {
  min-height: 420px;
}

.technical-diagram,
.catalog {
  width: calc(100vw - clamp(40px, 8vw, 140px));
  max-width: none;
  margin: 0 auto;
  padding: clamp(38px, 5vw, 72px) 0;
}
.technical-diagram {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
.technical-diagram__copy,
.catalog__copy {
  display: grid;
  gap: 16px;
  min-width: 0;
}
.technical-diagram__copy p,
.catalog__copy p {
  margin: 0;
  color: var(--ink-2);
  font-size: clamp(16px, 1.12vw, 18px);
  line-height: 1.62;
  max-width: 64ch;
}
.technical-diagram h2,
.catalog h2 {
  margin: 0;
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: .96;
  letter-spacing: -.035em;
}
.technical-diagram h2 em,
.catalog h2 em {
  color: var(--accent);
  font-style: normal;
}
.technical-diagram__figure {
  margin: 0;
  min-height: 420px;
  border-radius: var(--r-xl);
  background: var(--panel);
  box-shadow: var(--shadow-float);
  overflow: hidden;
  display: grid;
  place-items: center;
  padding: clamp(18px, 2vw, 28px);
}
.technical-diagram__figure img {
  width: 100%;
  height: 100%;
  max-height: 560px;
  object-fit: contain;
  filter: saturate(.94) contrast(1.02);
}
.catalog {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(420px, 1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.catalog__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}
.catalog__preview {
  position: relative;
  min-height: 0;
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-float);
  overflow: hidden;
  padding: clamp(16px, 2vw, 24px);
  display: grid;
  gap: 20px;
}
.catalog__document {
  position: relative;
  min-height: 520px;
  border-radius: var(--r-md);
  background: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-recessed);
}
.catalog__preview object,
.catalog__preview iframe {
  width: 100%;
  height: 520px;
  border: 0;
  background: #fff;
}
.catalog__caption {
  display: block;
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(22px, 2vw, 32px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ink);
}
.catalog__fallback {
  margin: 0;
  padding: 28px;
  color: var(--ink);
}

.faq-list {
  display: grid;
  gap: 14px;
}
.faq-list > li {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 48px);
  padding: 22px;
  border-radius: var(--r-lg);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}
.faq__q {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
}
.faq__a {
  margin: 0;
  color: var(--ink-2);
}
.faq__a + .faq__a {
  margin-top: 12px;
}
.steps-list {
  counter-reset: step;
  display: grid;
  gap: 8px;
}
.steps-list li {
  counter-increment: step;
  position: relative;
  padding: 12px 14px 12px 54px;
  border-radius: var(--r-md);
  background: var(--chassis);
  color: var(--ink-2);
}
.steps-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 12px;
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 700;
}
.quantity-note {
  margin: 14px 0 0;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
}
.system-info {
  scroll-margin-top: calc(var(--nav-h) + 24px);
  padding: clamp(24px, 4vw, 56px) 0 clamp(56px, 7vw, 92px);
  background: linear-gradient(180deg, transparent 0, rgba(255,255,255,.42) 16%, rgba(255,255,255,.42) 100%);
}
.system-info__head {
  width: calc(100vw - clamp(40px, 8vw, 140px));
  margin: 0 auto clamp(10px, 2vw, 20px);
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(22px, 4vw, 52px);
  align-items: start;
}
.system-info__head h2 {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(34px, 4.2vw, 64px);
  line-height: .96;
  letter-spacing: -.035em;
}
.system-info__head p {
  grid-column: 2;
  max-width: 70ch;
  margin: -8px 0 0;
  color: var(--ink-2);
  font-size: clamp(16px, 1.1vw, 19px);
  line-height: 1.6;
}
.system-info__grid {
  width: calc(100vw - clamp(40px, 8vw, 140px));
  margin: clamp(24px, 4vw, 42px) auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--grid-gap);
}

/* ============================================================
   MANIFESTO VISUAL — neden.jpg photo strip
   ============================================================ */
.manifesto__visual {
  margin-top: clamp(32px, 4vw, 56px);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  line-height: 0;
}
.manifesto__visual img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(.9) contrast(1.03) brightness(.92);
  transition: transform .6s var(--ease);
}
.manifesto__visual:hover img { transform: scale(1.015); }

/* ============================================================
   OPS VISUAL — sevkiyat photo panel
   ============================================================ */
.ops__visual {
  width: 100%;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  margin-bottom: clamp(24px, 3vw, 40px);
  line-height: 0;
}
.ops__visual img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(.86) contrast(1.04) brightness(.88);
  transition: transform .6s var(--ease);
}
.ops__visual:hover img { transform: scale(1.02); }

/* ============================================================
   ABOUT / HAKKIMIZDA PAGE
   ============================================================ */
.about-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(480px, 64vh, 700px);
  padding: clamp(96px, 12vw, 156px) var(--pad-x) clamp(56px, 7vw, 92px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0;
  overflow: hidden;
  background:
    linear-gradient(to bottom, rgba(12,14,16,.94) 0%, rgba(12,14,16,.68) 48%, rgba(12,14,16,.18) 100%),
    url("../../resimler/fabrika.png") center 40% / cover no-repeat,
    var(--dark-bg);
}
.about-hero::after {
  content: "";
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 65% 100%, rgba(178,58,46,.22), transparent 48%);
  pointer-events: none;
}
.about-hero__inner {
  position: relative; z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
  display: flex; flex-direction: column;
  gap: clamp(14px, 1.4vw, 20px);
}
.about-hero .hero__kicker {
  color: rgba(244,244,242,.84);
  text-shadow: 0 2px 10px rgba(0,0,0,.5);
}
.about-hero .hero__kicker .dot {
  background: var(--accent);
  box-shadow: var(--glow-accent);
}
.about-hero__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(42px, 6.4vw, 92px);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.04em;
  color: var(--dark-text);
  text-shadow: 0 4px 28px rgba(0,0,0,.5);
  max-width: 16ch;
}
.about-hero__lede {
  margin: 0;
  font-size: clamp(16px, 1.25vw, 20px);
  line-height: 1.6;
  color: rgba(244,244,242,.84);
  max-width: 52ch;
  text-shadow: 0 2px 12px rgba(0,0,0,.4);
}
.about-hero__ctas {
  display: flex; flex-wrap: wrap;
  gap: 14px; align-items: center;
  margin-top: 8px;
}

/* About stats */
.about-stats-section {
  padding-top: clamp(28px, 3.5vw, 48px);
  padding-bottom: clamp(36px, 4.5vw, 60px);
}

/* About story */
.about-story__body {
  display: grid;
  gap: clamp(18px, 2vw, 26px);
  max-width: 72ch;
  padding-top: clamp(8px, 1vw, 16px);
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.72;
  color: var(--ink-2);
}

/* About factory */
.about-factory__content {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 56px);
  align-items: start;
}
.about-factory__figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-float);
  line-height: 0;
}
.about-factory__figure img {
  width: 100%;
  height: auto;
  display: block;
  filter: saturate(.9) contrast(1.03) brightness(.94);
  transition: transform .65s var(--ease);
}
.about-factory__figure:hover img { transform: scale(1.03); }
.about-factory__text {
  display: grid; gap: clamp(14px, 1.5vw, 20px);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.65;
  color: var(--ink-2);
  padding-top: 6px;
}
.about-factory__features {
  list-style: none;
  margin: clamp(28px, 3.5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.about-factory__features li {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px;
  border-radius: var(--r-md);
  background: var(--chassis);
  box-shadow: var(--shadow-recessed);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-2);
  line-height: 1.4;
}
.about-factory__features li::before {
  content: "";
  width: 6px; height: 6px;
  min-width: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow-accent);
  flex-shrink: 0;
}

/* ============================================================
   BLOG PREVIEW — 2×2 card grid (main page + listing page)
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(20px, 2.4vw, 32px);
}

.blog-card {
  position: relative;
  border-radius: var(--r-lg);
  background: var(--chassis);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
/* Corner screws */
.blog-card::before {
  content: "";
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 2;
  background:
    radial-gradient(circle at 14px 14px, rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at calc(100% - 14px) 14px, rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at 14px calc(100% - 14px), rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at calc(100% - 14px) calc(100% - 14px), rgba(0,0,0,.18) 1.4px, transparent 2.4px),
    radial-gradient(circle at 13px 13px, rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at calc(100% - 15px) 13px, rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at 13px calc(100% - 15px), rgba(255,255,255,.75) .7px, transparent 1.4px),
    radial-gradient(circle at calc(100% - 15px) calc(100% - 15px), rgba(255,255,255,.75) .7px, transparent 1.4px);
}
.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
}
.blog-card__link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
}
.blog-card__figure {
  margin: 0;
  aspect-ratio: 16 / 9;
  background: var(--recessed);
  box-shadow: inset 4px 4px 10px var(--sh-deep), inset -4px -4px 10px var(--sh-light);
  overflow: hidden;
  flex: 0 0 auto;
}
.blog-card__figure img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .55s var(--ease), filter .4s var(--ease);
  filter: saturate(.9);
}
.blog-card:hover .blog-card__figure img {
  transform: scale(1.04);
  filter: saturate(1);
}
.blog-card__body {
  padding: clamp(20px, 2.4vw, 28px) clamp(20px, 2.4vw, 28px) clamp(22px, 2.8vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.blog-card__tag {
  display: inline-flex; align-items: center; gap: 8px;
  width: max-content;
  padding: 4px 10px;
  border-radius: var(--r-sm);
  background: rgba(178,58,46,.08);
  box-shadow: inset 0 0 0 1px rgba(178,58,46,.2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--accent);
}
.blog-card__title {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(17px, 1.35vw, 21px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
  color: var(--ink);
}
.blog-card__excerpt {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-muted);
  flex: 1;
}
.blog-card__read {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--accent);
  transition: gap .2s var(--ease);
}
.blog-card:hover .blog-card__read { gap: 10px; }

/* ============================================================
   BLOG — post & listing page
   ============================================================ */
.blog-hero {
  width: 100%;
  max-height: 520px;
  overflow: hidden;
  background: var(--dark-bg);
}
.blog-hero figure {
  margin: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 6;
}
.blog-hero img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(.88) contrast(1.04) brightness(.9);
}

.blog-post {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(40px, 5vw, 72px) var(--pad-x) clamp(64px, 8vw, 112px);
}
.blog-post__back {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 32px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--ink-muted);
  transition: color .2s var(--ease);
}
.blog-post__back:hover { color: var(--accent); }
.blog-post__tag {
  display: inline-flex; align-items: center; gap: 8px;
  width: max-content;
  padding: 5px 12px;
  border-radius: var(--r-sm);
  background: rgba(178,58,46,.08);
  box-shadow: inset 0 0 0 1px rgba(178,58,46,.2);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 18px;
}
.blog-post__title {
  margin: 0 0 clamp(18px, 2.2vw, 28px);
  font-size: clamp(30px, 4vw, 54px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.03em;
  color: var(--ink);
  max-width: 22ch;
}
.blog-post__lede {
  margin: 0 0 clamp(32px, 4vw, 52px);
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.6;
  color: var(--ink-2);
  font-weight: 400;
  border-left: 3px solid var(--accent);
  padding-left: 22px;
}
.blog-post__body {
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.72;
  color: var(--ink-2);
}
.blog-post__body h2 {
  margin: clamp(36px, 4vw, 56px) 0 16px;
  font-size: clamp(21px, 2vw, 30px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
}
.blog-post__body h3 {
  margin: clamp(22px, 2.2vw, 32px) 0 12px;
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}
.blog-post__body p { margin: 0 0 18px; }
.blog-post__body ul,
.blog-post__body ol {
  margin: 0 0 24px;
  padding-left: 26px;
  display: grid; gap: 8px;
}
.blog-post__body li { line-height: 1.65; }
.blog-post__body strong { color: var(--ink); font-weight: 700; }
.blog-post__cta {
  margin-top: clamp(40px, 5vw, 72px);
  padding: clamp(24px, 3vw, 36px) clamp(24px, 3vw, 40px);
  border-radius: var(--r-lg);
  background: var(--dark-bg);
  color: var(--dark-text);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}
.blog-post__cta::before, .blog-post__cta::after {
  content: "";
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.25) .8px, rgba(0,0,0,.35) 1.5px, transparent 3px);
}
.blog-post__cta::before { top: 12px; left: 12px; }
.blog-post__cta::after  { bottom: 12px; right: 12px; }
.blog-post__cta strong {
  font-size: clamp(18px, 1.5vw, 22px);
  font-weight: 700;
  color: var(--dark-text);
}
.blog-post__cta p {
  margin: 0;
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.6;
  color: rgba(244,244,242,.78);
}
.blog-post__cta .cta--solid { align-self: flex-start; }

/* Blog listing page */
.blog-listing {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(40px, 5vw, 72px) var(--pad-x) clamp(64px, 8vw, 112px);
}
.blog-listing__head {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-bottom: var(--section-head-gap);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .hero__visual { min-height: clamp(420px, 70vh, 620px); }
  .product-grid, .product-grid--three, .product-grid--four { grid-template-columns: repeat(2, 1fr); }
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .section__head, .manifesto__body { grid-template-columns: 1fr; }
  .section__head { row-gap: clamp(12px, 1.2vw, 18px); }
  .reach-map { grid-template-columns: 1fr; }
  .reach-proof { grid-template-columns: repeat(2, 1fr); }
  .nav__links { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .foot { grid-template-columns: 1fr; }
  .blog-listing__head { grid-template-columns: 1fr; }
  .about-factory__content { grid-template-columns: 1fr; }
  .about-factory__features { grid-template-columns: repeat(2, 1fr); }
  /* ops__visual uses natural image height — no override needed */
  .product-hero,
  .product-section,
  .packaging,
  .technical-diagram,
  .catalog {
    grid-template-columns: 1fr;
  }
  .product-hero,
  .use-band,
    .system-proof,
    .product-detail,
    .packaging,
    .technical-diagram,
    .catalog,
    .faq,
    .system-info__head {
    width: calc(100vw - 40px);
  }
  .use-band__head,
  .faq__head,
  .system-info__head,
  .faq-list > li {
    grid-template-columns: 1fr;
  }
  .system-info__head p {
    grid-column: auto;
    margin-top: 0;
  }
  .system-advantages {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .system-criteria,
  .system-info__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  :root {
    --nav-h: 72px;
    --section-y: 46px;
    --section-head-gap: 28px;
    --grid-gap: 18px;
    --card-pad: 22px 20px;
  }
  .nav {
    padding: 12px 20px;
  }
  section[id] {
    scroll-margin-top: 24px;
  }
  .brand__logo {
    height: 32px;
  }
  .hero {
    padding: 10px var(--pad-x) 0;
  }
  .hero__visual {
    height: clamp(260px, 72vw, 330px);
    min-height: 0;
    padding: 8px;
    border-radius: var(--r-lg);
  }
  .hero__visual::before,
  .hero__visual::after {
    opacity: .55;
  }
  .hero__plate {
    height: 100%;
    min-height: 0;
    border-radius: var(--r-lg);
  }
  .hero-slider__slide img {
    object-fit: cover;
    object-position: center;
  }
  .hero__scroll {
    display: none;
  }
  .hero-intro {
    min-height: auto;
    padding: 46px var(--pad-x) 56px;
    justify-content: flex-start;
    background:
      linear-gradient(180deg, rgba(12,14,16,.90) 0%, rgba(12,14,16,.78) 44%, rgba(12,14,16,.92) 100%),
      url("../../resimler/back.png") center / cover no-repeat,
      var(--dark-bg);
  }
  .hero-intro > * {
    width: 100%;
    margin-left: 0;
  }
  .hero-intro .hero__kicker {
    font-size: 10.5px;
    letter-spacing: .1em;
  }
  .hero__grid {
    left: 18px;
    width: calc(100% - 36px);
    bottom: 92px;       /* leave room for controls bar */
  }
  .hero__title { font-size: clamp(32px, 9vw, 52px); }
  .hero-intro .hero__title {
    max-width: 11ch;
    font-size: clamp(42px, 14vw, 58px);
  }
  .hero-intro .hero__lede {
    font-size: 16px;
    line-height: 1.55;
  }
  .proof-strip {
    padding: 18px var(--pad-x) clamp(24px, 3.5vw, 40px);
  }
  .hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }
  .hero__stats > div {
    min-height: 118px;
    padding: 14px;
  }
  .hero__stats dd {
    gap: 6px;
    flex-wrap: nowrap;
    overflow: hidden;
  }
  .hero__stats .num {
    font-size: clamp(20px, 6.5vw, 26px);
    white-space: nowrap;
  }
  .hero__stats .u {
    font-size: 9px;
    letter-spacing: .08em;
    white-space: nowrap;
  }
  .hero__plate-label { top: 14px; left: 14px; padding: 6px 10px; font-size: 10px; }
  .hero-slider__controls { bottom: 16px; right: 16px; padding: 4px; gap: 6px; }
  .hero-slider__btn { width: 30px; height: 30px; font-size: 16px; }
  .product-grid, .product-grid--three, .product-grid--four { grid-template-columns: 1fr; }
  .section {
    padding: 46px var(--pad-x);
  }
  .section__head {
    gap: 18px;
    margin-bottom: 28px;
  }
  .section__index {
    padding: 9px 14px;
    font-size: 12px;
    letter-spacing: .12em;
  }
  .section__title {
    font-size: clamp(28px, 8.2vw, 38px);
    line-height: 1.08;
  }
  .manifesto {
    display: grid;
    gap: 24px;
  }
  .manifesto .section__head {
    margin-bottom: 0;
  }
  .manifesto__body {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
    width: 100%;
  }
  .manifesto__lead {
    grid-column: auto;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 20px;
    border-radius: var(--r-lg);
    background: var(--chassis);
    box-shadow: var(--shadow-recessed);
    font-size: 17px;
    line-height: 1.58;
  }
  .pillars {
    grid-column: auto;
    grid-template-columns: 1fr;
    gap: 14px;
    width: 100%;
  }
  .pillars li {
    width: 100%;
    min-height: 0;
    padding: 22px 20px;
    border-radius: var(--r-lg);
  }
  .pillars h3 {
    font-size: 21px;
  }
  .pillars p {
    font-size: 15.5px;
  }
  .manifesto__visual {
    margin-top: 0;
    border-radius: var(--r-lg);
  }
  .product-grid {
    gap: 20px;
  }
  .product__visual img {
    padding: 10%;
  }
  .product__meta {
    padding: 20px 24px 24px;
  }
  .blog-grid { grid-template-columns: 1fr; }
  .reach-proof { grid-template-columns: 1fr; }
  .about-factory__features { grid-template-columns: 1fr; }
  .blog-hero { max-height: 280px; }
  .about-hero__title { font-size: clamp(36px, 10vw, 54px); }
  .ops__visual { border-radius: var(--r-lg); }
  .product-hero {
    width: calc(100vw - 40px);
    padding-top: 28px;
    gap: 24px;
  }
  .product-hero__copy {
    gap: 14px;
  }
  .product-hero h1,
  .product-section h1,
  .product-section h2,
  .use-band h2,
  .technical-diagram h2,
  .catalog h2,
  .packaging h2,
  .faq h2 {
    font-size: clamp(34px, 11vw, 52px);
  }
  .product-hero__lede,
  .product-single__lede {
    font-size: 16px;
    line-height: 1.58;
  }
  .product-hero__figure {
    aspect-ratio: 4 / 3;
    border-radius: var(--r-lg);
  }
  .system-advantages,
  .system-criteria,
  .system-info__grid,
  .product-jump,
  .use-band__gallery,
  .product-section__media {
    grid-template-columns: 1fr;
  }
  .system-criteria article,
  .system-info__grid article {
    min-height: 0;
  }
  .use-band__gallery figure:first-child {
    grid-row: auto;
  }
  .product-section {
    padding: 18px;
    border-radius: var(--r-lg);
  }
  .product-single-main {
    padding-top: 24px;
  }
  .product-detail--single {
    padding-bottom: 26px;
  }
  .product-section--single {
    gap: 18px;
  }
  .product-section--single .product-section__body {
    order: 1;
  }
  .product-section--single .product-section__media {
    order: 2;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .product-section__media figure {
    border-radius: var(--r-md);
  }
  .product-section__media img {
    padding: 8px;
  }
  .product-package {
    padding: 16px;
  }
  .technical-diagram,
  .catalog {
    padding: 26px 0;
    gap: 22px;
  }
  .technical-diagram__figure {
    min-height: 260px;
    border-radius: var(--r-lg);
    padding: 14px;
  }
  .catalog__actions .cta {
    width: 100%;
  }
  .catalog__preview {
    padding: 12px;
    border-radius: var(--r-lg);
  }
  .catalog__document {
    min-height: 390px;
  }
  .catalog__preview object,
  .catalog__preview iframe {
    height: 390px;
  }
  .pillars { grid-template-columns: 1fr; }
  .ops__row { grid-template-columns: 1fr; gap: 6px; }
  .rfq__row { grid-template-columns: 1fr; }
  .foot__cols { grid-template-columns: 1fr; }
  .foot__base { flex-direction: column; }
  .nav__meta .cta--ghost { display: none; }
  .hero .cta { width: 100%; }
  .cta--center {
    width: 100%;
    max-width: 100%;
    white-space: normal;
    text-align: center;
  }
  .wa-fab { width: 52px; height: 52px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}