@font-face {
  font-family: "Space Grotesk";
  src: url("/assets/space-grotesk-variable.woff2") format("woff2");
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
}

:root {
  --green: #0c9a5b;
  --green-dark: #087447;
  --lime: #c6e63d;
  --ink: #0c1311;
  --graphite: #121a17;
  --paper: #f3f4ef;
  --paper-deep: #e7eae3;
  --white: #fff;
  --muted: #68716d;
  --line: rgba(12, 19, 17, .14);
  --gutter: clamp(1.25rem, 5.45vw, 6rem);
  --section-space: clamp(5.5rem, 9vw, 10rem);
  --header-height: 6.5rem;
  --ease: cubic-bezier(.2, .72, .2, 1);
  --font-nav: "Space Grotesk", "Segoe UI Variable", "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
  font-family: "Segoe UI Variable", "Aptos", Inter, "Helvetica Neue", Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--ink); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
[hidden] { display: none !important; }

::selection { color: var(--ink); background: var(--lime); }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: .8rem;
  left: .8rem;
  padding: .7rem 1rem;
  color: var(--ink);
  background: var(--lime);
  transform: translateY(-180%);
  transition: transform .2s;
}

.skip-link:focus { transform: translateY(0); }

.shell { width: 100%; padding-inline: var(--gutter); }
.section { padding-block: var(--section-space); }
#panter-1200, #teknoloji, #teknik, #uygulamalar, #iletisim { scroll-margin-top: 5rem; }

.eyebrow {
  margin: 0;
  font-size: .68rem;
  font-weight: 670;
  letter-spacing: .17em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow.green { color: var(--green-dark); }
.eyebrow.lime { color: var(--lime); }

.button {
  min-height: 3.55rem;
  padding: .75rem 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.65rem;
  border: 1px solid transparent;
  font-size: .77rem;
  font-weight: 650;
  letter-spacing: .01em;
  transition: color .25s, background-color .25s, border-color .25s, transform .25s;
}

.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--ink); background: var(--lime); }
.button-primary:hover { background: var(--white); }
.button-ghost { color: var(--white); border-color: rgba(255, 255, 255, .36); }
.button-ghost:hover { color: var(--ink); background: var(--white); border-color: var(--white); }

.text-link {
  width: max-content;
  padding-block: .25rem;
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  border-bottom: 1px solid currentColor;
  font-size: .77rem;
  font-weight: 620;
}

.text-link span { transition: transform .25s; }
.text-link:hover span { transform: translate(.15rem, -.15rem); }
.text-link.light { color: rgba(255, 255, 255, .82); }
.text-link.dark { color: var(--ink); }

/* Header */
.site-header {
  position: absolute;
  z-index: 100;
  inset: 0 0 auto;
  color: var(--white);
  transition: color .3s, background-color .3s, box-shadow .3s, backdrop-filter .3s;
}

.site-header.scrolled {
  position: fixed;
  color: var(--white);
  background: rgba(8, 17, 14, .88);
  box-shadow: 0 1px rgba(255, 255, 255, .1);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: minmax(11rem, 1fr) auto minmax(11rem, 1fr);
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, .2);
}

.site-header.scrolled .header-inner { min-height: 5rem; border-color: transparent; }

.brand {
  width: max-content;
  display: inline-flex;
  align-items: center;
}

.brand-logo { width: auto; height: 4.65rem; object-fit: contain; }
.site-header.scrolled .brand-logo { height: 3.8rem; }

.desktop-nav { display: flex; align-items: center; gap: clamp(1.25rem, 2vw, 2.35rem); }

.desktop-nav a {
  position: relative;
  padding-block: .4rem;
  color: #fff;
  font-family: var(--font-nav);
  font-size: .8rem;
  font-weight: 650;
  letter-spacing: .045em;
  text-transform: uppercase;
  white-space: nowrap;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .3s var(--ease);
}

.desktop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.header-cta {
  justify-self: end;
  min-height: 2.9rem;
  padding: .6rem .9rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  border: 1px solid var(--lime);
  color: var(--ink);
  background: var(--lime);
  font-family: var(--font-nav);
  font-size: .78rem;
  font-weight: 650;
  letter-spacing: .045em;
  text-transform: uppercase;
  transition: color .25s, background-color .25s;
}

.header-cta:hover { color: var(--ink); background: var(--white); border-color: var(--white); }

.menu-toggle {
  justify-self: end;
  width: 3rem;
  height: 3rem;
  padding: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .42rem;
  border: 1px solid rgba(255, 255, 255, .35);
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  width: 1rem;
  height: 1px;
  background: currentColor;
  transition: transform .25s;
}

.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(.23rem) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-.23rem) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  z-index: -1;
  inset: 0;
  padding: calc(var(--header-height) + 2rem) var(--gutter) 2rem;
  color: var(--white);
  background: var(--ink);
  overflow-y: auto;
}

.mobile-menu nav { display: grid; border-top: 1px solid rgba(255, 255, 255, .15); }

.mobile-menu nav a {
  min-height: 5.25rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, .15);
  font-size: clamp(1.25rem, 5vw, 1.8rem);
  font-weight: 430;
  letter-spacing: -.03em;
}

.mobile-menu nav span { color: var(--lime); font-size: .62rem; letter-spacing: .15em; }

.mobile-menu-contact { margin-top: 2.5rem; display: grid; gap: .5rem; color: rgba(255, 255, 255, .65); font-size: .8rem; }

/* Hero */
.hero {
  position: relative;
  min-height: max(46rem, 100svh);
  display: grid;
  color: var(--white);
  overflow: hidden;
  background: #071711;
}

.hero-media,
.hero-shade { position: absolute; inset: 0; }

.hero-media {
  background: url("/assets/panter-field.jpg") 54% center / cover no-repeat;
  filter: saturate(.92) contrast(1.02) brightness(1.06);
  transform: scale(1.015);
  animation: hero-in 1.4s var(--ease) both;
}

@keyframes hero-in {
  from { opacity: .25; transform: scale(1.055); }
  to { opacity: 1; transform: scale(1.015); }
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(4, 15, 11, .86) 0%, rgba(4, 15, 11, .66) 36%, rgba(4, 15, 11, .24) 63%, rgba(4, 15, 11, .02) 100%),
    linear-gradient(0deg, rgba(3, 10, 8, .67) 0%, transparent 42%, rgba(3, 10, 8, .18) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  min-height: max(46rem, 100svh);
  padding-top: calc(var(--header-height) + clamp(4.5rem, 10vh, 8rem));
  padding-bottom: 9.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.hero-eyebrow { color: var(--lime); }

.hero h1 {
  max-width: 14ch;
  margin: 1.15rem 0 1.7rem;
  font-size: clamp(4rem, 7.9vw, 8.2rem);
  font-weight: 500;
  letter-spacing: -.066em;
  line-height: .86;
}

.hero h1 span { color: rgba(255, 255, 255, .98); }

.hero-lead {
  max-width: 37rem;
  margin: 0;
  color: rgba(255, 255, 255, .7);
  font-size: clamp(.98rem, 1.25vw, 1.12rem);
}

.hero-actions { margin-top: 2rem; display: flex; align-items: center; gap: 1.3rem; }

.hero-foot {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  min-height: 6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-top: 1px solid rgba(255, 255, 255, .2);
}

.hero-signature { display: grid; gap: .12rem; }
.hero-signature strong { font-size: .75rem; font-weight: 650; }
.hero-signature span { color: rgba(255, 255, 255, .48); font-size: .68rem; }

.video-link { margin-right: 8rem; display: inline-flex; align-items: center; gap: .8rem; font-size: .72rem; font-weight: 620; }

.play-dot {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .45);
  border-radius: 50%;
  font-size: .56rem;
  transition: color .25s, background-color .25s;
}

.video-link:hover .play-dot { color: var(--ink); background: var(--lime); border-color: var(--lime); }

.feature-ribbon { color: var(--ink); background: var(--lime); overflow: hidden; }

.ribbon-track {
  min-height: 4.65rem;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  white-space: nowrap;
}

.ribbon-track span { font-size: .72rem; font-weight: 690; letter-spacing: .06em; text-transform: uppercase; }
.ribbon-track i { width: .28rem; height: .28rem; flex: 0 0 auto; background: var(--green-dark); transform: rotate(45deg); }

/* Intro */
.manifesto { background: var(--paper); }

.manifesto-head {
  padding-bottom: clamp(4rem, 7vw, 7rem);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(20rem, .62fr);
  align-items: end;
  gap: clamp(3rem, 9vw, 10rem);
}

.manifesto h2,
.specifications h2,
.process h2,
.application h2,
.product-structure h2,
.faq h2 {
  margin: 1rem 0 0;
  font-size: clamp(3.1rem, 5.6vw, 6.4rem);
  font-weight: 420;
  letter-spacing: -.062em;
  line-height: .94;
}

.manifesto h2 span,
.specifications h2 span,
.process h2 span { color: var(--green-dark); }

.section-intro { max-width: 36rem; margin: 0; color: var(--muted); font-size: clamp(1rem, 1.2vw, 1.12rem); }

.principles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principle {
  min-height: 19rem;
  padding: 1.5rem clamp(1.25rem, 2vw, 2.1rem) 2rem;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.principle:first-child { padding-left: 0; }
.principle:last-child { padding-right: 0; border-right: 0; }
.principle-no { color: var(--green-dark); font-size: .68rem; font-weight: 700; letter-spacing: .14em; }
.principle h3 { margin: auto 0 .7rem; font-size: clamp(1.2rem, 1.65vw, 1.55rem); font-weight: 520; letter-spacing: -.035em; }
.principle p { margin: 0; color: var(--muted); font-size: .9rem; }

/* Technology explorer */
.technology { color: var(--white); background: var(--graphite); }

.section-kicker {
  min-height: 3.5rem;
  padding-bottom: 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.section-kicker > p:last-child { margin: 0; color: rgba(255, 255, 255, .42); font-size: .75rem; }

.technology-heading {
  padding-block: clamp(3rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(19rem, .52fr);
  gap: 4rem;
  align-items: end;
}

.technology-heading h2 {
  margin: 0;
  font-size: clamp(3rem, 5.7vw, 6.6rem);
  font-weight: 410;
  letter-spacing: -.062em;
  line-height: .94;
}

.technology-heading > p { margin: 0; color: rgba(255, 255, 255, .54); }

.technology-explorer {
  min-height: 44rem;
  display: grid;
  grid-template-columns: 19rem minmax(0, 1fr);
  border: 1px solid rgba(255, 255, 255, .16);
}

.technology-tabs { display: flex; flex-direction: column; }

.technology-tabs button {
  min-height: 7rem;
  padding: 1rem 1.35rem;
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: center;
  gap: .7rem;
  color: rgba(255, 255, 255, .52);
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: color .25s, background-color .25s;
}

.technology-tabs button:last-child { border-bottom: 0; }
.technology-tabs button span { font-size: .62rem; letter-spacing: .14em; }
.technology-tabs button strong { font-size: .93rem; font-weight: 540; }
.technology-tabs button i { font-style: normal; transition: transform .25s; }
.technology-tabs button:hover { color: var(--white); }
.technology-tabs button:hover i { transform: translate(.12rem, -.12rem); }

.technology-tabs button[aria-selected="true"] {
  color: var(--ink);
  background: var(--lime);
}

.technology-stage {
  position: relative;
  min-height: 44rem;
  overflow: hidden;
  background: #07130f;
}

.technology-stage > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity .22s, transform .7s var(--ease);
}

.technology-stage:hover > img { transform: scale(1.018); }
.technology-stage.is-switching > img { opacity: .15; }

.technology-stage-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(5, 13, 10, .94) 0%, rgba(5, 13, 10, .56) 52%, rgba(5, 13, 10, .07) 100%);
  transition: opacity .25s;
}

.technology-stage-copy {
  position: absolute;
  z-index: 2;
  right: 0;
  bottom: 0;
  left: 0;
  padding: clamp(1.5rem, 4vw, 4rem);
  transition: opacity .2s, transform .2s;
}

.technology-stage.is-switching .technology-stage-copy { opacity: .3; transform: translateY(.4rem); }
.technology-stage-copy .eyebrow { color: rgba(255, 255, 255, .62); }

.technology-stage-copy h3 {
  margin: .85rem 0 .9rem;
  font-size: clamp(2.6rem, 4.6vw, 5.2rem);
  font-weight: 420;
  letter-spacing: -.058em;
  line-height: .94;
}

.technology-stage-copy > p:not(.eyebrow) { max-width: 43rem; margin: 0; color: rgba(255, 255, 255, .7); }
.technology-stage-copy ul { margin: 1.4rem 0 1.6rem; padding: 0; display: flex; flex-wrap: wrap; gap: .55rem; list-style: none; }
.technology-stage-copy li { padding: .42rem .7rem; border: 1px solid rgba(255, 255, 255, .28); font-size: .7rem; }

.technology-stage[data-stage-tone="light"] { color: var(--ink); background: var(--paper-deep); }
.technology-stage[data-stage-tone="light"] > img { padding: clamp(3rem, 8vw, 8rem); object-fit: contain; object-position: center 22%; }
.technology-stage[data-stage-tone="light"] .technology-stage-shade { background: linear-gradient(0deg, rgba(231, 234, 227, .98) 0%, rgba(231, 234, 227, .88) 38%, rgba(231, 234, 227, .05) 72%); }
.technology-stage[data-stage-tone="light"] .technology-stage-copy .eyebrow { color: var(--green-dark); }
.technology-stage[data-stage-tone="light"] .technology-stage-copy > p:not(.eyebrow) { color: var(--muted); }
.technology-stage[data-stage-tone="light"] .technology-stage-copy li { border-color: var(--line); }
.technology-stage[data-stage-tone="light"] .button-ghost { color: var(--ink); border-color: rgba(12, 19, 17, .3); }
.technology-stage[data-stage-tone="light"] .button-ghost:hover { color: var(--white); background: var(--green-dark); border-color: var(--green-dark); }

/* Specifications */
.specifications { background: var(--paper-deep); }

.specification-grid {
  display: grid;
  grid-template-columns: minmax(20rem, .82fr) minmax(0, 1.15fr);
  gap: clamp(4rem, 10vw, 11rem);
  align-items: start;
}

.specification-head { position: sticky; top: 9rem; }
.specification-head h2 { max-width: 11ch; }
.specification-head > p:not(.eyebrow) { max-width: 32rem; margin: 1.6rem 0 1.8rem; color: var(--muted); }
.spec-list { margin: 0; border-top: 1px solid var(--line); }

.spec-list > div {
  min-height: 5.2rem;
  padding-block: 1.15rem;
  display: grid;
  grid-template-columns: minmax(9rem, .8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.spec-list dt { color: var(--muted); font-size: .78rem; }
.spec-list dd { margin: 0; font-size: clamp(1.05rem, 1.4vw, 1.3rem); font-weight: 530; letter-spacing: -.025em; }

/* Process */
.process { background: var(--paper); }
.process-head { padding-bottom: clamp(3.5rem, 6vw, 6rem); }
.process-head h2 { max-width: 13ch; }

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.process-card { background: var(--paper); }
.process-image { aspect-ratio: 1.34; overflow: hidden; background: var(--paper-deep); }
.process-image img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85); transition: transform .7s var(--ease), filter .4s; }
.process-card:hover img { transform: scale(1.02); filter: saturate(1); }
.process-image-contain img { object-fit: contain; padding: 1rem; }
.process-image-robot img { object-fit: contain; padding: 1.6rem; }

.process-copy {
  min-height: 14rem;
  padding: 1.6rem;
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 1rem;
}

.process-copy > span { color: var(--green-dark); font-size: .66rem; font-weight: 700; letter-spacing: .13em; }
.process-copy h3 { margin: 0 0 .7rem; font-size: 1.3rem; font-weight: 530; letter-spacing: -.035em; }
.process-copy p { margin: 0; color: var(--muted); font-size: .9rem; }

/* Application */
.application { color: var(--white); background: var(--graphite); }

.application-grid {
  display: grid;
  grid-template-columns: minmax(20rem, .82fr) minmax(0, 1.12fr);
  gap: clamp(4rem, 10vw, 11rem);
  align-items: start;
}

.application-sticky { position: sticky; top: 9rem; }
.application h2 { max-width: 10ch; }
.application-sticky > p:last-child { max-width: 31rem; margin-top: 1.8rem; color: rgba(255, 255, 255, .55); }
.application-content { padding-top: .4rem; }

.application-visual { margin: 0 0 3rem; }
.application-visual img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.application-visual figcaption { margin-top: .75rem; color: rgba(255, 255, 255, .58); font-size: .67rem; letter-spacing: .12em; text-transform: uppercase; }

.application-content > p { max-width: 44rem; color: rgba(255, 255, 255, .58); }
.application-content .application-lead { margin-top: 0; color: var(--white); font-size: clamp(1.5rem, 2.35vw, 2.35rem); line-height: 1.32; letter-spacing: -.04em; }
.application-content .text-link { margin-top: 1rem; }

.application-values {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(255, 255, 255, .15);
}

.application-values span { padding: 1.1rem 0; border-bottom: 1px solid rgba(255, 255, 255, .15); color: rgba(255, 255, 255, .78); font-size: .8rem; }
.application-values span:nth-child(odd) { border-right: 1px solid rgba(255, 255, 255, .15); }
.application-values span:nth-child(even) { padding-left: 1.1rem; }

/* Structure */
.product-structure { background: var(--paper-deep); }

.structure-head {
  padding-bottom: clamp(3.5rem, 6vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, .55fr);
  gap: 4rem;
  align-items: end;
}

.structure-head h2 { max-width: 13ch; }
.structure-head > p { margin: 0; color: var(--muted); }

.structure-visual { margin: 0; border-top: 1px solid var(--line); }
.structure-visual img { width: 100%; max-height: 49rem; padding: clamp(1.5rem, 5vw, 4.5rem); object-fit: contain; background: #f5f6f2; }
.structure-visual figcaption { padding-top: .75rem; color: var(--muted); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; }

/* FAQ */
.faq { background: var(--paper); }

.faq-grid {
  display: grid;
  grid-template-columns: minmax(18rem, .74fr) minmax(0, 1.2fr);
  gap: clamp(4rem, 8vw, 9rem);
}

.faq-head h2 { max-width: 11ch; }
.faq-head > p:last-child { max-width: 24rem; margin-top: 2rem; color: var(--muted); }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }

.faq-list summary {
  min-height: 6.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  cursor: pointer;
  list-style: none;
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  font-weight: 520;
  letter-spacing: -.026em;
}

.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { position: relative; width: 1.25rem; height: 1.25rem; flex: 0 0 auto; }
.faq-list summary span::before,
.faq-list summary span::after { content: ""; position: absolute; top: 50%; left: 0; width: 100%; height: 1px; background: currentColor; transition: transform .25s; }
.faq-list summary span::after { transform: rotate(90deg); }
.faq-list details[open] summary span::after { transform: rotate(0); }
.faq-list details p { max-width: 47rem; margin: -1rem 3rem 2rem 0; color: var(--muted); }

/* Contact + footer */
.contact {
  position: relative;
  min-height: 54rem;
  padding-block: clamp(7rem, 12vw, 12rem);
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
  background: #07130f;
}

.contact-media,
.contact-shade { position: absolute; inset: 0; }
.contact-media { background: url("/assets/panter-field.jpg") 58% center / cover no-repeat; filter: saturate(.75); }
.contact-shade { background: linear-gradient(90deg, rgba(4, 13, 10, .96) 0%, rgba(4, 13, 10, .82) 44%, rgba(4, 13, 10, .33) 100%), linear-gradient(0deg, rgba(3, 9, 7, .74), transparent 62%); }
.contact-inner { position: relative; z-index: 1; }

.contact h2 {
  max-width: 13ch;
  margin: 1.3rem 0 1.5rem;
  font-size: clamp(3rem, 6vw, 6.5rem);
  font-weight: 410;
  letter-spacing: -.065em;
  line-height: .93;
}

.contact-lead { max-width: 37rem; color: rgba(255, 255, 255, .68); font-size: 1.04rem; }
.contact-actions { margin-top: 2rem; display: flex; gap: .75rem; }

.contact-details {
  max-width: 74rem;
  margin-top: clamp(4rem, 8vw, 8rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, .22);
}

.contact-details > * { padding: 1.4rem 1.2rem 0 0; display: grid; align-content: start; gap: .35rem; }
.contact-details small { color: rgba(255, 255, 255, .48); font-size: .65rem; letter-spacing: .12em; text-transform: uppercase; }
.contact-details strong { font-size: .84rem; font-weight: 530; }

.site-footer { padding: 4.5rem 0 1.5rem; color: var(--white); background: var(--ink); }
.footer-top { padding-bottom: 4rem; display: flex; justify-content: space-between; gap: 4rem; }
.footer-brand p { margin: 1rem 0 0; color: rgba(255, 255, 255, .42); font-size: .75rem; }
.footer-brand .brand-logo { height: 8.5rem; }
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(11rem, 1fr)); gap: 5rem; }
.footer-links > div { display: grid; align-content: start; gap: .55rem; }
.footer-links small { margin-bottom: .55rem; color: rgba(255, 255, 255, .58); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; }
.footer-links a { color: rgba(255, 255, 255, .72); font-size: .8rem; }
.footer-links a:hover { color: var(--lime); }
.footer-bottom { padding-top: 1.4rem; padding-right: calc(var(--gutter) + 9rem); display: flex; justify-content: space-between; border-top: 1px solid rgba(255, 255, 255, .13); color: rgba(255, 255, 255, .56); font-size: .67rem; }

.floating-contact {
  position: fixed;
  z-index: 80;
  right: 1.25rem;
  bottom: 1.25rem;
  min-height: 3rem;
  padding: .5rem .55rem .5rem .9rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--white);
  background: var(--green);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .22);
  font-size: .74rem;
  font-weight: 650;
}

.floating-contact svg { width: 2rem; height: 2rem; padding: .35rem; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.35; border: 1px solid rgba(255, 255, 255, .44); border-radius: 50%; }

.reveal { opacity: 0; transform: translateY(1.25rem); transition: opacity .75s var(--ease), transform .75s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }

@media (max-width: 1120px) {
  .desktop-nav { gap: 1.1rem; }
  .desktop-nav a { font-size: .75rem; letter-spacing: .045em; }
}

@media (min-width: 1021px) {
  body.menu-open { overflow: auto; }
  .mobile-menu { display: none !important; }
}

@media (max-width: 1020px) {
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .header-inner { min-height: 5.8rem; grid-template-columns: 1fr auto; }
  .site-header.scrolled .header-inner { min-height: 4.9rem; }
  .hero { min-height: max(44rem, 100svh); }
  .hero-content { min-height: max(44rem, 100svh); padding-top: 9rem; }
  .manifesto-head, .technology-heading, .structure-head { grid-template-columns: 1fr; gap: 2rem; }
  .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principle:nth-child(2) { border-right: 0; }
  .principle:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .technology-explorer { grid-template-columns: 17rem minmax(0, 1fr); }
  .technology-tabs button { padding-inline: 1rem; }
  .specification-grid, .application-grid { gap: 4rem; }
  .process-grid { grid-template-columns: 1fr; }
  .process-card { display: grid; grid-template-columns: .86fr 1.14fr; }
  .process-image { aspect-ratio: auto; min-height: 18rem; }
  .faq-grid { grid-template-columns: 1fr; gap: 4rem; }
  .contact-details { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 740px) {
  :root { --gutter: 1.25rem; --section-space: 5.5rem; --header-height: 5.25rem; }
  .header-inner { min-height: 5.25rem; }
  .brand-logo { height: 3.75rem; }
  .site-header.scrolled .brand-logo { height: 3.45rem; }
  .menu-toggle { width: 2.55rem; height: 2.55rem; }
  .mobile-menu { padding-top: 7.5rem; }
  .hero { min-height: 47rem; }
  .hero-media { background-position: 65% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(4, 13, 10, .86) 0%, rgba(4, 13, 10, .56) 70%, rgba(4, 13, 10, .18) 100%), linear-gradient(0deg, rgba(3, 9, 7, .76) 0%, transparent 50%, rgba(3, 9, 7, .28) 100%); }
  .hero-content { min-height: 47rem; padding-top: 8rem; padding-bottom: 8.5rem; justify-content: center; }
  .hero h1 { max-width: none; margin-top: 1rem; font-size: clamp(2.75rem, 14vw, 5.2rem); line-height: .88; }
  .hero-lead { max-width: 31rem; font-size: .96rem; }
  .hero-actions { width: 100%; align-items: stretch; flex-direction: column; gap: .65rem; }
  .hero-actions .button { width: 100%; }
  .hero-actions .text-link { width: max-content; margin-top: .4rem; }
  .hero-foot { min-height: 5rem; }
  .hero-signature span { display: none; }
  .video-link { font-size: 0; gap: .5rem; }
  .hero-foot .video-link { margin-right: 4rem; }
  .video-link::after { content: "İzleyin ↗"; font-size: .72rem; }
  .video-link > span:last-child { display: none; }
  .ribbon-track { width: max-content; min-height: 4.25rem; animation: ribbon 22s linear infinite alternate; }
  @keyframes ribbon { to { transform: translateX(calc(-100% + 100vw - 2.5rem)); } }
  .manifesto h2, .specifications h2, .process h2, .application h2, .product-structure h2, .faq h2 { font-size: clamp(2.55rem, 12vw, 4.1rem); }
  .manifesto-head { padding-bottom: 3.5rem; }
  .principles { grid-template-columns: 1fr; }
  .principle, .principle:first-child, .principle:last-child { min-height: auto; padding: 1.2rem 0 2rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle h3 { margin: 2.25rem 0 .6rem; }
  .section-kicker > p:last-child { display: none; }
  .technology-heading h2 { font-size: clamp(2.6rem, 11.5vw, 4.15rem); }
  .technology-explorer { min-height: 0; display: flex; flex-direction: column; border: 0; }
  .technology-tabs { order: 2; }
  .technology-tabs button { min-height: 4.8rem; flex: none; border-right: 1px solid rgba(255, 255, 255, .16); border-left: 1px solid rgba(255, 255, 255, .16); }
  .technology-stage { order: 1; min-height: 35rem; margin-bottom: 1px; }
  .technology-stage-copy { padding: 1.35rem; }
  .technology-stage-copy h3 { font-size: 2.8rem; }
  .technology-stage-copy .button { width: 100%; }
  .technology-stage[data-stage-tone="light"] > img { padding: 2.5rem 1rem 12rem; object-position: center 20%; }
  .specification-grid, .application-grid { grid-template-columns: 1fr; gap: 3.5rem; }
  .specification-head, .application-sticky { position: static; }
  .spec-list > div { grid-template-columns: 1fr; gap: .25rem; min-height: 5rem; }
  .process-card { display: block; }
  .process-image { min-height: 0; aspect-ratio: 1.22; }
  .process-copy { min-height: 12rem; padding: 1.25rem; }
  .application-content { padding-top: 0; }
  .application-content .application-lead { font-size: 1.45rem; }
  .application-values { grid-template-columns: 1fr; }
  .application-values span:nth-child(odd) { border-right: 0; }
  .application-values span:nth-child(even) { padding-left: 0; }
  .structure-visual img { padding: 1rem 0; }
  .faq-list summary { min-height: 5.5rem; }
  .contact { min-height: 50rem; }
  .contact-media { background-position: 65% center; }
  .contact h2 { font-size: clamp(3rem, 14vw, 5rem); }
  .contact-actions { flex-direction: column; }
  .contact-actions .button { width: 100%; }
  .contact-details { grid-template-columns: 1fr; }
  .contact-details > * { padding-block: 1rem; border-bottom: 1px solid rgba(255, 255, 255, .16); }
  .footer-top { flex-direction: column; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { padding-right: var(--gutter); flex-direction: column; gap: .4rem; }
  .floating-contact span { display: none; }
  .floating-contact { width: 3.25rem; height: 3.25rem; padding: .55rem; border-radius: 50%; }
  .floating-contact svg { width: 100%; height: 100%; padding: .2rem; border: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (min-width: 1500px) {
  :root { --gutter: max(6rem, calc((100vw - 1440px) / 2 + 4.5rem)); }
}