/* =========================================================================
   Codek — logo sunumu
   Statik HTML/CSS/JS. Build yok. file:// ve static sunucu uyumlu.
   Sabit kurumsal palet — tema switch yok (Codek renkleri mevsimlik değil).
   ========================================================================= */

:root {
  color-scheme: only light;

  --color-navy: #0d1b2a;
  --color-forest: #1b4332;
  --color-slate: #4a5568;
  --color-linen: #f7f9fb;
  --color-white: #ffffff;

  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 1120px;
  --pad: clamp(1.25rem, 5vw, 4.5rem);
  --radius: 4px;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--color-linen);
  color: var(--color-navy);
  line-height: 1.55;
  font-size: clamp(1rem, 0.94rem + 0.3vw, 1.1rem);
  overflow-x: hidden;
}

html.lenis,
html.lenis body {
  height: auto;
}
.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-forest);
  outline-offset: 3px;
  border-radius: 2px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 0;
  top: 0;
  transform: translateY(-120%);
  background: var(--color-navy);
  color: var(--color-white);
  padding: 0.6em 1em;
  z-index: 100;
  transition: transform 150ms ease;
}
.skip-link:focus {
  transform: translateY(0);
}

/* ---------- Placeholder (eksik asset) ---------- */
.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  background: repeating-linear-gradient(
    45deg,
    var(--color-slate),
    var(--color-slate) 8px,
    transparent 8px,
    transparent 16px
  );
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  text-align: center;
  padding: 0.75rem;
  border-radius: var(--radius);
}

/* ---------- Section iskeleti ---------- */
.section {
  position: relative;
  padding: clamp(4rem, 12vh, 8rem) var(--pad);
}

.section__inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.section__lede {
  font-family: var(--font-serif);
  font-size: clamp(0.85rem, 0.8rem + 0.2vw, 0.95rem);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-forest);
  margin: 0 0 0.5rem;
}

.section__body {
  max-width: 46ch;
  color: var(--color-slate);
  margin: 0.5rem 0 2.5rem;
}

/* ---------- S0 — Açılış ---------- */
.opening {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.opening__kicker {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-slate);
  margin: 0 0 1.5rem;
}

.opening__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 1.4rem + 3.6vw, 3.6rem);
  line-height: 1.12;
  margin: 0 auto 1.25rem;
  max-width: 18ch;
  color: var(--color-navy);
}

.opening__sub {
  max-width: 46ch;
  margin: 0 auto 3rem;
  color: var(--color-slate);
  font-size: 1.05rem;
}

.opening__lockup {
  width: min(340px, 70vw);
  margin: 0 auto;
}

/* ---------- S1 — Amblem rationale ---------- */
.emblem {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}
.emblem-hero {
  width: min(260px, 46vw);
  margin: 0 auto 1.5rem;
}
.emblem-hero img {
  width: 100%;
}
.emblem__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.3rem);
  margin: 0 0 1.75rem;
}
.emblem__notes {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 46ch;
  display: grid;
  gap: 0.9rem;
  text-align: left;
  color: var(--color-slate);
}
.emblem__notes li {
  padding-left: 1.4rem;
  position: relative;
}
.emblem__notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--color-forest);
  border-radius: 50%;
}

/* ---------- S3 — Kilit sistemi ---------- */
.lockups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.lockup-card {
  background: var(--color-white);
  border: 1px solid rgba(13, 27, 42, 0.1);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.lockup-card__frame {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.lockup-card__frame img {
  max-height: 80px;
}
.lockup-card__label {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--color-navy);
}
.lockup-card__desc {
  font-size: 0.85rem;
  color: var(--color-slate);
  margin-top: 0.35rem;
}

/* ---------- S4 — Dayanıklılık testleri ---------- */
.spec-tests {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.spec-card {
  background: var(--color-white);
  color: var(--color-navy);
  border: 1px solid rgba(13, 27, 42, 0.1);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
}
.spec-card__frame {
  min-height: 70px;
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}
.spec-card__frame img {
  height: 46px;
  width: auto;
}
/* Gerçek 10mm/32px oranını hissettirmek için amblem gözle görülür küçük. */
.spec-card[data-spec-key="min-size"] .spec-card__frame img {
  height: 20px;
}
/* Fotokopi/faks simülasyonu — gerçek asset üstünde canlı filtre, önceden
   üretilmiş bir "gri" varyant değil. */
.spec-card[data-spec-key="low-fidelity"] .spec-card__frame img {
  filter: grayscale(1) contrast(2.2) brightness(1.05);
}
.spec-card__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}
.spec-card__detail {
  font-size: 0.85rem;
  color: var(--color-slate);
}

/* ---------- S5 — Bağlam galerisi ---------- */
.contexts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.context-card {
  margin: 0;
}
.context-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
}
.context-card__caption {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-top: 0.75rem;
}
.context-card__label {
  font-family: var(--font-serif);
  color: var(--color-navy);
}
.context-card__text {
  font-size: 0.85rem;
  color: var(--color-slate);
}

/* ---------- S6 — Kapanış ---------- */
.closing {
  text-align: center;
}
.closing__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 1.4rem + 2vw, 2.6rem);
  margin: 0 0 1rem;
}
.closing__sub {
  max-width: 46ch;
  margin: 0 auto 2.5rem;
  color: var(--color-slate);
}
.closing__downloads {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}
.download-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  text-decoration: none;
  padding: 0.9rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
  min-width: 220px;
  text-align: left;
  transition: background-color 150ms ease, color 150ms ease;
}
.download-btn strong {
  font-family: var(--font-serif);
  font-size: 1rem;
}
.download-btn span {
  font-size: 0.75rem;
  color: var(--color-slate);
}
.download-btn--primary {
  background: var(--color-navy);
  color: var(--color-white);
}
.download-btn--primary span {
  color: rgba(247, 249, 251, 0.7);
}
.download-btn:hover {
  background: var(--color-forest);
  border-color: var(--color-forest);
  color: var(--color-white);
}
.download-btn:hover span {
  color: rgba(247, 249, 251, 0.8);
}

/* ---------- Footer — Novexing imzası ---------- */
.footer {
  padding: 3rem var(--pad) 4rem;
  text-align: center;
  border-top: 1px solid rgba(13, 27, 42, 0.1);
}
.footer__link {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}
.footer__link img {
  height: 22px;
  width: auto;
}
.footer__note {
  font-size: 0.8rem;
  color: var(--color-slate);
}

/* ---------- Mobil ---------- */
@media (max-width: 640px) {
  .section {
    padding: 3rem var(--pad);
  }
  .closing__downloads {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ---------- prefers-reduced-motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}