/* ============================================================
   FOX THINKER
   Kurumsal Kimlik Kilavuzu Surum 1.0 uyarlamasi
   Renk, tipografi ve sekil dili kilavuzdan birebir alinmistir.
   ============================================================ */

/* ---------- 1. YAZI TIPLERI (self-host, latin + latin-ext) ----------
   latin-ext subseti Turkce g s I G S karakterleri icin zorunludur. */

@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Montserrat-400-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Montserrat-400-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/Montserrat-500-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/Montserrat-500-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/Montserrat-600-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/Montserrat-600-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Montserrat-700-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Montserrat-700-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../fonts/Montserrat-800-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../fonts/Montserrat-800-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/JetBrainsMono-400-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/JetBrainsMono-400-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/JetBrainsMono-500-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/JetBrainsMono-500-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- 2. TOKENLAR ---------- */

:root {
  /* Kimlik: ana renkler */
  --ft-ink-100: #0F0F11;
  --ft-ink-90: #17171A;
  --ft-ink-80: #232327;
  --ft-ink-70: #33333A;
  --ft-paper: #FDFBFA;

  /* Kimlik: turuncu olcek 150 > 10 */
  --ft-orange-150: #A8300A;
  --ft-orange-140: #CC4110;
  --ft-orange-130: #E84A14;
  --ft-orange-120: #F65119;
  --ft-orange-110: #FF5B25;
  --ft-orange-60: #FFAE93;
  --ft-orange-40: #FFC9B7;
  --ft-orange-20: #FFE4DB;
  --ft-orange-10: #FFF1ED;

  /* Kimlik: notr olcek */
  --ft-neutral-80: #666666;
  --ft-neutral-60: #A6A6A6;
  --ft-neutral-40: #CFCFCF;
  --ft-neutral-20: #E9E9E9;
  --ft-neutral-10: #F5F5F5;

  /* Kimlik: semantik renkler */
  --ft-accent: #FFC62E;   /* yalnizca marker ve uyari */
  --ft-success: #4CD67E;
  --ft-error: #FF3B3B;
  --ft-info: #2F6BFF;
  --ft-geo: #C95BFF;      /* yalnizca yapay zeka ve GEO yuzeyleri */

  /* Kimlik: gradyanlar */
  --grad-ember: linear-gradient(96deg, #FF5B25 0%, #FF3B3B 100%);
  --grad-signal: linear-gradient(96deg, #FF5B25 0%, #FFC62E 100%);
  --grad-geo: linear-gradient(122deg, #FF5B25 0%, #C95BFF 100%);

  /* Semantik yuzey tokenlari (acik mod varsayilan) */
  --surface: var(--ft-paper);
  --surface-2: #FFFFFF;
  --surface-3: var(--ft-neutral-10);
  --text: var(--ft-ink-100);
  --text-2: var(--ft-neutral-80);
  /* Ucuncul metin de notr 80'de kalir: daha acik bir gri (orn. #8A8A8A)
     12-13 piksel etiketlerde WCAG AA esigini gecemiyor. Ayrim renkle
     degil, mono yazi tipi ve harf araligiyla kuruluyor. */
  --text-3: var(--ft-neutral-80);
  --border: var(--ft-neutral-20);
  --border-strong: var(--ft-neutral-40);
  --brand: var(--ft-orange-110);
  --brand-text: var(--ft-orange-140);      /* metinde okunabilir turuncu */
  --shadow-sm: 0 1px 2px rgba(15, 15, 17, .04);
  --shadow-md: 0 2px 4px rgba(15, 15, 17, .03), 0 12px 32px rgba(15, 15, 17, .06);
  --shadow-lg: 0 2px 6px rgba(15, 15, 17, .04), 0 24px 64px rgba(15, 15, 17, .10);

  /* Tip olcegi: kilavuz sayfa 17 */
  --fs-display-xl: clamp(2.5rem, 1.35rem + 4.6vw, 4.75rem);   /* 40 > 76 */
  --fs-display-l: clamp(2rem, 1.35rem + 2.6vw, 3.5rem);       /* 32 > 56 */
  --fs-display-m: clamp(1.75rem, 1.42rem + 1.35vw, 2.5rem);   /* 28 > 40 */
  --fs-heading-l: clamp(1.375rem, 1.2rem + 0.7vw, 1.875rem);  /* 22 > 30 */
  --fs-heading-m: clamp(1.125rem, 1.03rem + 0.4vw, 1.5rem);   /* 18 > 24 */
  --fs-body-l: 1.125rem;
  --fs-body-m: 1rem;
  --fs-body-s: 0.875rem;
  --fs-label: 0.8125rem;
  --fs-eyebrow: 0.75rem;

  /* Olcu: govde 62 karakter, baslik 20 karakter */
  --measure-body: 62ch;
  --measure-display: 20ch;

  /* Sekil dili: 20 derece kesim */
  --cut: 20deg;
  --r-surface: 16px;
  --r-control: 10px;
  --r-chip: 6px;

  /* Ritim */
  --page-max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --section-y: clamp(5rem, 9vw, 9.5rem);

  --font-sans: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 620ms;
}

/* Koyu mod: kimlikteki ink olcegi sayfa yuzeyine gecer.
   Marka aksani ayni kalir, hiyerarsi korunur. */
@media (prefers-color-scheme: dark) {
  :root {
    --surface: var(--ft-ink-100);
    --surface-2: var(--ft-ink-90);
    --surface-3: var(--ft-ink-80);
    --text: var(--ft-paper);
    --text-2: var(--ft-neutral-60);
    --text-3: var(--ft-neutral-60);
    --border: var(--ft-ink-80);
    --border-strong: var(--ft-ink-70);
    --brand-text: var(--ft-orange-110);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .30);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, .24), 0 12px 32px rgba(0, 0, 0, .36);
    --shadow-lg: 0 2px 6px rgba(0, 0, 0, .28), 0 24px 64px rgba(0, 0, 0, .46);
  }
}

/* ---------- 3. TEMEL ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body-m);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
svg { fill: currentColor; }
a { color: inherit; }
button, input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--ft-orange-110); color: var(--ft-ink-100); }

:focus-visible {
  outline: 2px solid var(--ft-orange-110);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ft-orange-110);
  color: var(--ft-ink-100);
  padding: 12px 20px;
  font-weight: 600;
  border-radius: 0 0 var(--r-control) 0;
}
.skip-link:focus { left: 0; }

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

/* ---------- 4. DUZEN ---------- */

.wrap {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(3.5rem, 6vw, 6rem); }

/* Ton farki, tema degisimi degil */
.section--sunken { background: var(--surface-3); }

/* ---------- 5. TIPOGRAFI ---------- */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.022em;
  line-height: 1.08;
  text-wrap: balance;
}

.display-xl {
  font-size: var(--fs-display-xl);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: var(--measure-display);
}
.display-l {
  font-size: var(--fs-display-l);
  line-height: 1.04;
  letter-spacing: -0.026em;
  max-width: var(--measure-display);
}
.display-m {
  font-size: var(--fs-display-m);
  line-height: 1.08;
  letter-spacing: -0.022em;
}
.heading-l {
  font-size: var(--fs-heading-l);
  line-height: 1.16;
  letter-spacing: -0.016em;
  font-weight: 700;
}
.heading-m {
  font-size: var(--fs-heading-m);
  line-height: 1.24;
  letter-spacing: -0.012em;
  font-weight: 700;
}

p { margin: 0; }

.lede {
  font-size: var(--fs-body-l);
  line-height: 1.6;
  color: var(--text-2);
  max-width: var(--measure-body);
}
.body { max-width: var(--measure-body); color: var(--text-2); }
.body-s { font-size: var(--fs-body-s); line-height: 1.6; color: var(--text-2); }

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

/* Kilavuz sayfa 18: ust bilgi + baslik + lede ucusu.
   Ust bilgi mono, buyuk harf, 22 piksel turuncu cizgi. */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-text);
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 22px;
  height: 2px;
  background: var(--ft-orange-110);
}

/* Kilavuz sayfa 12: sari yalnizca iki uc kelimenin altinda marker */
.marker {
  background-image: linear-gradient(var(--ft-accent), var(--ft-accent));
  background-repeat: no-repeat;
  background-size: 100% 0.34em;
  background-position: 0 88%;
  padding-inline: 0.06em;
}

.section-head { margin-bottom: clamp(2.5rem, 4vw, 4rem); }
.section-head .lede { margin-top: 20px; }

/* ---------- 6. KONTROLLER ---------- */

.btn {
  --btn-y: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: var(--btn-y) 26px;
  border: 1px solid transparent;
  border-radius: var(--r-control);
  font-size: var(--fs-body-s);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 240ms var(--ease), background-color 240ms var(--ease),
              border-color 240ms var(--ease), box-shadow 240ms var(--ease),
              color 240ms var(--ease);
}
.btn:active { transform: translateY(1px) scale(0.985); }

/* Kilavuz sayfa 13: Ember gradyan varsayilan birincil buton.
   Metin ink siyahi: turuncu uzerinde beyaz WCAG AA'yi gecemiyor (3.1:1),
   ink ile 6.2:1 saglaniyor. */
.btn--primary {
  background: var(--grad-ember);
  color: var(--ft-ink-100);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .28) inset, 0 10px 26px rgba(255, 91, 37, .28);
}
.btn--primary:hover {
  box-shadow: 0 1px 0 rgba(255, 255, 255, .32) inset, 0 14px 34px rgba(255, 91, 37, .36);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  border-color: var(--text);
  background: rgba(15, 15, 17, .05);
  background: color-mix(in srgb, var(--text) 5%, transparent);
  transform: translateY(-2px);
}
@media (prefers-color-scheme: dark) {
  .btn--ghost:hover { background: rgba(253, 251, 250, .06); }
}

/* Koyu zemin uzerindeki ikincil buton */
.on-ink .btn--ghost {
  color: var(--ft-paper);
  border-color: rgba(253, 251, 250, .28);
}
.on-ink .btn--ghost:hover {
  border-color: rgba(253, 251, 250, .7);
  background: rgba(253, 251, 250, .07);
}

.btn__icon {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(15, 15, 17, .16);
  transition: transform 240ms var(--ease);
}
.btn--ghost .btn__icon {
  background: rgba(15, 15, 17, .10);
  background: color-mix(in srgb, var(--text) 10%, transparent);
}
.on-ink .btn--ghost .btn__icon { background: rgba(253, 251, 250, .14); }
.btn:hover .btn__icon { transform: translate(2px, -1px); }
.btn__icon svg { width: 11px; height: 11px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-body-s);
  font-weight: 600;
  color: var(--brand-text);
  text-decoration: none;
  transition: gap 240ms var(--ease);
}
.link-arrow:hover { gap: 13px; }
.link-arrow svg { width: 12px; height: 12px; }

/* ---------- 7. INK MESH YUZEY ----------
   Kilavuz sayfa 13: #0F0F11 + uc radyal isima.
   Yalnizca koyu acilis blogu ve alt bilgi icin. */

.on-ink {
  position: relative;
  isolation: isolate;
  background:
    radial-gradient(78rem 42rem at 12% -12%, rgba(255, 91, 37, .20), transparent 62%),
    radial-gradient(56rem 34rem at 88% 4%, rgba(201, 91, 255, .11), transparent 60%),
    radial-gradient(60rem 40rem at 62% 112%, rgba(255, 59, 59, .13), transparent 62%),
    var(--ft-ink-100);
  color: var(--ft-paper);
}
.on-ink .lede,
.on-ink .body,
.on-ink .body-s { color: rgba(253, 251, 250, .68); }
.on-ink .eyebrow { color: var(--ft-orange-110); }

/* ---------- 8. GEZINME ---------- */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background-color 420ms var(--ease), border-color 420ms var(--ease),
              backdrop-filter 420ms var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  /* Yedek once yazilir: color-mix desteklenmeyen tarayicilarda zemin
     hic uygulanmazsa menu yazisi icerigin uzerinde okunmaz hale gelir. */
  background: rgba(253, 251, 250, .88);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border);
}
@media (prefers-color-scheme: dark) {
  .nav.is-stuck {
    background: rgba(15, 15, 17, .88);
    background: color-mix(in srgb, var(--surface) 86%, transparent);
  }
}
.nav__inner {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav__logo { display: block; flex: none; position: relative; height: 26px; width: 154px; }
.nav__logo img {
  position: absolute;
  inset: 0;
  height: 100%;
  width: auto;
  transition: opacity 420ms var(--ease);
}
.nav__logo .logo--light { opacity: 1; }
.nav__logo .logo--dark { opacity: 0; }
.nav.is-stuck .nav__logo .logo--light { opacity: 0; }
.nav.is-stuck .nav__logo .logo--dark { opacity: 1; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__link {
  position: relative;
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: rgba(253, 251, 250, .74);
  transition: color 240ms var(--ease);
  white-space: nowrap;
}
.nav__link:hover { color: var(--ft-paper); }
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -7px;
  height: 1.5px;
  background: var(--ft-orange-110);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 320ms var(--ease);
}
.nav__link:hover::after { transform: scaleX(1); }
.nav.is-stuck .nav__link { color: var(--text-2); }
.nav.is-stuck .nav__link:hover { color: var(--text); }

/* Koyu modda sabitlenen gezinme zemini de ink oldugu icin
   acik renkli logo varyanti kullanilmaya devam eder. */
@media (prefers-color-scheme: dark) {
  .nav.is-stuck .nav__logo .logo--light { opacity: 1; }
  .nav.is-stuck .nav__logo .logo--dark { opacity: 0; }
}

.nav__cta { display: none; }
@media (min-width: 900px) { .nav__cta { display: inline-flex; --btn-y: 10px; } }

/* Mobil menu */
/* Flex sutun: cizgi araligi sabit 8 piksel kalir, boylece kapatma
   durumunda iki cizgi tam ust uste binip X olusturur. */
.nav__toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--ft-paper);
}
.nav.is-stuck .nav__toggle { color: var(--text); }
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform 380ms var(--ease), opacity 220ms var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.nav__panel {
  position: fixed;
  inset: 72px 0 0;
  z-index: 39;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--ft-ink-100);
  padding: 12px var(--gutter) 32px;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 320ms var(--ease), transform 380ms var(--ease), visibility 380ms;
}
.nav__panel.is-open { opacity: 1; transform: none; visibility: visible; }
.nav__panel ul { list-style: none; margin: 0; padding: 0; }
.nav__panel li { border-bottom: 1px solid var(--ft-ink-80); }

/* Yalnizca liste baglantilari: buton kendi duzenini korur. */
.nav__panel li a {
  display: block;
  padding: 16px 2px;
  font-size: var(--fs-heading-m);
  font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--ft-paper);
  text-decoration: none;
}
.nav__panel .btn { width: 100%; margin-top: 24px; }

@media (min-width: 900px) {
  .nav__toggle, .nav__panel { display: none; }
}
@media (max-width: 899px) {
  .nav__menu { display: none; }
}

/* ---------- 9. HERO ---------- */

.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: clamp(7rem, 12vh, 9.5rem);
  padding-bottom: clamp(4rem, 9vh, 7rem);
  overflow: hidden;
}

/* Hareketli Ink Mesh yuzeyi.
   Karisim "screen" oldugu icin shader'in siyah bolgeleri gorunmez,
   yalnizca isima ink zeminin uzerine eklenir. Metnin arkasi maske ile
   yeniden koyulastirilir, boylece okunabilirlik korunur. */
.hero__shader {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1200ms var(--ease);
}
.hero__shader.shader-hazir { opacity: .5; }
.hero__shader canvas {
  width: 100%;
  height: 100%;
  display: block;
  mix-blend-mode: screen;
}
.hero__shader::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(46% 58% at 27% 52%, rgba(15, 15, 17, .90), rgba(15, 15, 17, .45) 62%, transparent 82%),
    linear-gradient(to bottom, rgba(15, 15, 17, .40), transparent 26%);
}

/* Dar ekranda metin tum genisligi kapladigi icin maske de
   metin blogunun uzerine tasinir, kenarlar serbest kalir. */
@media (max-width: 767px) {
  .hero__shader::after {
    background:
      radial-gradient(78% 30% at 50% 38%, rgba(15, 15, 17, .90), rgba(15, 15, 17, .5) 66%, transparent 88%),
      linear-gradient(to bottom, rgba(15, 15, 17, .45), transparent 20%);
  }
}

/* Acilis icerigi shader'in uzerinde durur */
.hero__grid { position: relative; z-index: 1; }
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(3rem, 6vw, 5rem);
  align-items: center;
  width: 100%;
}
@media (min-width: 1000px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    gap: 4rem;
  }
}

/* Kilavuz sayfa 17: baslik olcusu 20 karakter genisliginde tutulur.
   Olcek, basligin uc satiri asmamasi icin sutun genisligiyle
   birlikte planlanmistir. */
.hero__title {
  font-size: clamp(2.25rem, 1.1rem + 4.4vw, 4rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
  max-width: var(--measure-display);
  margin-bottom: 26px;
}
.hero__lede { max-width: 46ch; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

/* Kilavuz sayfa 4: 20 derece kesim, sistemin sekil dilidir.
   Sembol bu kesimle kurulan bir yuzey kompozisyonunun icinde durur. */
.hero__art {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-inline: auto;
  width: 100%;
}
/* Kucuk ekranda plaka kisalir, boylece baslik ve butonlar
   ilk ekranda kalmaya devam eder. */
@media (max-width: 999px) {
  .hero__art { max-width: 320px; margin-inline: 0; }
}
/* Plaka opak bir ink zemin tasir: arkasindaki hareketli yuzey
   sembolun koruma alanina giremez (kilavuz sayfa 7). */
.hero__plate {
  position: absolute;
  inset: 0;
  border-radius: calc(var(--r-surface) * 1.6);
  overflow: hidden;
  background:
    linear-gradient(150deg, rgba(253, 251, 250, .07), rgba(253, 251, 250, .02)),
    rgba(15, 15, 17, .92);
  border: 1px solid rgba(253, 251, 250, .10);
  box-shadow: inset 0 1px 0 rgba(253, 251, 250, .12);
}
/* Kesimlerin egimi 20 derecedir ve ikisi de sembolun koruma alaninin
   disinda, plakanin alt bandinda kalir. Kilavuz sayfa 7: koruma alanina
   baska bir oge girmez. */
.hero__cut {
  position: absolute;
  inset: 0;
  background: var(--grad-ember);
  clip-path: polygon(0 100%, 100% 65%, 100% 100%);
  opacity: .95;
}
.hero__cut--2 {
  background: var(--grad-geo);
  clip-path: polygon(0 100%, 0 78%, 60% 100%);
  opacity: .55;
  mix-blend-mode: screen;
}
.hero__mark {
  position: absolute;
  left: 50%;
  top: 37%;
  width: 33%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 18px 42px rgba(15, 15, 17, .5));
}
.hero__grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(253, 251, 250, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(253, 251, 250, .06) 1px, transparent 1px);
  background-size: 25% 25%;
  border-radius: inherit;
}

/* ---------- 10. ITIBAR BLOGU (karsitlik) ---------- */

.contrast {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-surface);
  overflow: hidden;
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
}
@media (min-width: 820px) { .contrast { grid-template-columns: 1fr 1fr; } }

.contrast__cell {
  background: var(--surface-2);
  padding: clamp(1.75rem, 3vw, 2.75rem);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contrast__cell--accent {
  background: var(--ft-ink-100);
  color: var(--ft-paper);
}
.contrast__cell--accent .body { color: rgba(253, 251, 250, .68); }
.contrast__k {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}
.contrast__cell--accent .contrast__k { color: var(--ft-orange-110); }
.contrast__cell .heading-l { max-width: 18ch; }

.pull {
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  padding-left: clamp(1.25rem, 3vw, 2.25rem);
  border-left: 2px solid var(--ft-orange-110);
  max-width: 54ch;
}

/* ---------- 11. BUTUNLESIK SISTEM ---------- */

/* Uc esit kart yerine kademeli ve asimetrik dizilim:
   kartlar bir zincirin halkalari gibi okunur. */
.system {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 2.4vw, 2rem);
}
@media (min-width: 860px) {
  .system { grid-template-columns: 1.28fr 1fr 1.06fr; align-items: start; }
  .system__card:nth-child(2) { margin-top: 2.5rem; }
  .system__card:nth-child(3) { margin-top: 5rem; }
}

.system__card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-surface);
  padding: clamp(1.5rem, 2.6vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: transform 420ms var(--ease), box-shadow 420ms var(--ease), border-color 420ms var(--ease);
}
.system__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.system__num {
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  color: var(--brand-text);
}
.system__card p { color: var(--text-2); font-size: var(--fs-body-s); line-height: 1.6; }

/* ---------- 11.B KANAL SISTEMI DIYAGRAMI ---------- */

.diagram {
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  display: none;
}
.diagram__svg {
  width: 100%;
  max-width: 720px;
  height: auto;
  margin-inline: auto;
  display: block;
}
.diagram__ring { stroke: var(--border-strong); stroke-width: 1.5; }
.diagram__link line { stroke: var(--ft-orange-110); stroke-width: 1.5; opacity: .38; }

.diagram__node path {
  fill: var(--surface-2);
  stroke: var(--border-strong);
  stroke-width: 1.5;
}
.diagram__node text {
  fill: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.diagram__core {
  fill: var(--ft-ink-100);
  font-family: var(--font-sans);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.diagram__caption {
  margin-top: 26px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  color: var(--text-2);
}

.channels {
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Cizim yalnizca etiketlerin okunabilir kaldigi genislikte gosterilir.
   Bu kural .channels tanimindan sonra gelmeli, yoksa gizleme ezilir. */
@media (min-width: 860px) {
  .diagram { display: block; }
  .channels { display: none; }
}
.channel {
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  padding: 9px 15px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-chip);
  color: var(--text-2);
  background: var(--surface-2);
}

/* ---------- 12. HIZMET BENTOSU ---------- */

.bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 1.6vw, 1.25rem);
}
@media (min-width: 700px) { .bento { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .bento { grid-template-columns: repeat(6, 1fr); } }

.svc {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-surface);
  padding: clamp(1.5rem, 2.4vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 232px;
  box-shadow: var(--shadow-sm);
  transition: transform 420ms var(--ease), box-shadow 420ms var(--ease), border-color 420ms var(--ease);
}
.svc:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.svc h3 { max-width: 16ch; }
.svc p { color: var(--text-2); font-size: var(--fs-body-s); line-height: 1.6; }
.svc__tag {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}

@media (min-width: 1040px) {
  .svc--wide { grid-column: span 3; }
  .svc--half { grid-column: span 2; }
  .svc--third { grid-column: span 2; }
}

/* Gradyan yuzeyli hucreler: kilavuzun gradyan kullanim kurallari */
.svc--ember {
  background: var(--grad-ember);
  border-color: transparent;
  color: var(--ft-ink-100);
}
/* Ember gradyanin kirmizi ucu (#FF3B3B) daha koyudur; yari saydam ink
   burada AA esigini gecemiyor. Opaklik ona gore secildi. */
.svc--ember p { color: rgba(15, 15, 17, .90); }
.svc--ember .svc__tag { color: rgba(15, 15, 17, .88); }

.svc--ink {
  background: var(--ft-ink-100);
  border-color: var(--ft-ink-80);
  color: var(--ft-paper);
}
.svc--ink p { color: rgba(253, 251, 250, .68); }
.svc--ink .svc__tag { color: rgba(253, 251, 250, .5); }

/* Kilavuz sayfa 13: Geo gradyani yalnizca yapay zeka ve GEO yuzeylerinde */
.svc--geo {
  background: var(--ft-ink-100);
  border-color: var(--ft-ink-80);
  color: var(--ft-paper);
}
.svc--geo::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 78%;
  aspect-ratio: 1;
  background: var(--grad-geo);
  filter: blur(46px);
  opacity: .55;
  z-index: -1;
}
.svc--geo p { color: rgba(253, 251, 250, .72); }
.svc--geo .svc__tag { color: rgba(253, 251, 250, .55); }

.svc__icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: var(--r-chip);
  background: rgba(255, 91, 37, .12);
  color: var(--brand-text);
}
.svc--ember .svc__icon { background: rgba(15, 15, 17, .14); color: var(--ft-ink-100); }
.svc--ink .svc__icon,
.svc--geo .svc__icon { background: rgba(253, 251, 250, .10); color: var(--ft-orange-110); }
.svc__icon svg { width: 18px; height: 18px; }

/* Kart uzerine gelindiginde ikon canlanir: hangi kartin etkin
   oldugunu tek bakista belli eder. */
.svc__icon { transition: transform 420ms var(--ease), background-color 420ms var(--ease); }
.svc:hover .svc__icon { transform: scale(1.1) rotate(-6deg); }

/* ---------- 13. GUNDEM RADARI ---------- */

.radar {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}
@media (min-width: 960px) { .radar { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); } }

.radar__list { list-style: none; margin: 0; padding: 0; }
.radar__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.radar__list li:first-child { padding-top: 0; }
.radar__list li:last-child { border-bottom: 0; }
.radar__list b {
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  font-weight: 500;
  color: var(--brand-text);
}
.radar__list span { font-size: var(--fs-body-l); line-height: 1.5; letter-spacing: -0.01em; }

.radar__note {
  margin-top: 30px;
  padding: clamp(1.5rem, 2.6vw, 2rem);
  border-radius: var(--r-surface);
  background: var(--surface-3);
  border: 1px solid var(--border);
}

/* Radar: gundemin surekli izlendigini anlatir, dekoratif degil. */
.radar__scope {
  margin-top: 34px;
  max-width: 320px;
}
.radar__scope svg { width: 100%; height: auto; display: block; }
.radar__rings circle,
.radar__rings line {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 1.2;
}
.radar__rings circle:last-of-type { stroke: var(--ft-orange-110); opacity: .4; }
.radar__blips circle { fill: var(--ft-orange-110); opacity: .7; }

.radar__sweep { transform-origin: 160px 160px; }
@media (prefers-reduced-motion: no-preference) {
  .radar__sweep { animation: radar-sweep 9s linear infinite; }
}
@keyframes radar-sweep { to { transform: rotate(360deg); } }

@media (max-width: 959px) {
  .radar__scope { margin-inline: auto; }
}

/* ---------- 14. KRIZ BLOGU ---------- */

.crisis {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
}
@media (min-width: 900px) { .crisis { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

.crisis__steps { display: grid; gap: 12px; }
.crisis__step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-control);
  font-size: var(--fs-body-s);
  line-height: 1.55;
}
.crisis__step i {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  background: var(--ft-orange-110);
  transform: skewX(calc(var(--cut) * -1));
}

/* ---------- 15. KAPSAM KUMELERI ---------- */

.scope {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-surface);
  overflow: hidden;
}
@media (min-width: 720px) { .scope { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .scope { grid-template-columns: repeat(4, 1fr); } }

.scope__col {
  background: var(--surface-2);
  padding: clamp(1.5rem, 2.4vw, 2rem);
}
.scope__col h3 { margin-bottom: 20px; }
.scope__col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.scope__col li {
  font-size: var(--fs-body-s);
  line-height: 1.5;
  color: var(--text-2);
  padding-left: 18px;
  position: relative;
}
.scope__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 2px;
  background: var(--ft-orange-110);
}

/* ---------- 16. BIZ KIMIZ ---------- */

.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (min-width: 960px) { .about__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr); } }

.about__claim {
  font-size: var(--fs-display-m);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.022em;
  max-width: 18ch;
  margin-top: 34px;
}
.about__list { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 16px; }
.about__list li {
  font-size: var(--fs-body-l);
  line-height: 1.45;
  letter-spacing: -0.01em;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.about__list li:last-child { border-bottom: 0; padding-bottom: 0; }

.about__figure {
  position: relative;
  border-radius: var(--r-surface);
  overflow: hidden;
  background: var(--surface-3);
  aspect-ratio: 4 / 5;
}
.about__figure img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.06); }
.about__figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  background: linear-gradient(to top, rgba(15, 15, 17, .74), transparent);
}

/* Fotograf eklenene kadar duran marka yuzeyi.
   Kesim acisi kilavuzdaki 20 dereceyle aynidir. */
.about__figure--empty {
  background:
    radial-gradient(42rem 30rem at 24% 8%, rgba(255, 91, 37, .22), transparent 62%),
    radial-gradient(34rem 26rem at 88% 96%, rgba(201, 91, 255, .12), transparent 60%),
    var(--ft-ink-100);
}
.about__figure--empty::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-ember);
  clip-path: polygon(0 100%, 100% 64%, 100% 100%);
  opacity: .9;
}
.about__figure--empty .about__figure-mark {
  position: absolute;
  left: 50%;
  top: 34%;
  width: 30%;
  height: auto;
  transform: translate(-50%, -50%);
  filter: none;
  object-fit: contain;
}
.about__figcap {
  position: absolute;
  left: clamp(1.25rem, 2vw, 1.75rem);
  right: clamp(1.25rem, 2vw, 1.75rem);
  bottom: clamp(1.25rem, 2vw, 1.75rem);
  z-index: 1;
  color: var(--ft-paper);
  font-size: var(--fs-body-s);
  line-height: 1.5;
}

/* ---------- 17. ILETISIM ---------- */

.footer__address {
  font-style: normal;
  font-size: var(--fs-body-s);
  line-height: 1.6;
  color: rgba(253, 251, 250, .68);
}

/* Alt bilgi sayfanin kapanisi oldugu icin iletisim burada acilir. */
.footer__lead {
  max-width: 46ch;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}
.footer__mail {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 32px;
  font-size: var(--fs-heading-l);
  font-weight: 700;
  letter-spacing: -0.016em;
  text-decoration: none;
  color: var(--ft-paper);
  word-break: break-word;
  transition: color 300ms var(--ease);
}
.footer__mail:hover { color: var(--ft-orange-110); }
.footer__mail span:first-child {
  background-image: linear-gradient(var(--ft-orange-110), var(--ft-orange-110));
  background-repeat: no-repeat;
  background-size: 0 2px;
  background-position: 0 100%;
  transition: background-size 460ms var(--ease);
}
.footer__mail:hover span:first-child { background-size: 100% 2px; }
.footer__mail-icon {
  flex: none;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(253, 251, 250, .10);
  color: var(--ft-orange-110);
  transition: transform 420ms var(--ease), background-color 420ms var(--ease);
}
.footer__mail-icon svg { width: 16px; height: 16px; }
.footer__mail:hover .footer__mail-icon {
  transform: translate(3px, -3px);
  background: rgba(255, 91, 37, .18);
}

/* ---------- 18. ALT BILGI ---------- */

/* Kilavuz sayfa 13: Ink Mesh, koyu acilis bloklari ve alt bilgi icindir.
   Alt bilgi sayfanin kapanisi oldugu icin mesh yuzeyi burada da kullanilir. */
.footer { padding-block: clamp(4.5rem, 8vw, 7rem) 2.5rem; }
.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2.5rem, 4vw, 4rem);
  padding-bottom: clamp(2.5rem, 4vw, 3.5rem);
  border-bottom: 1px solid var(--ft-ink-80);
}
@media (min-width: 820px) { .footer__top { grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 0.6fr)); } }

.footer__logo { width: 168px; margin-bottom: 22px; }
.footer__nav h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ft-orange-110);
  margin-bottom: 18px;
}
.footer__nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.footer__nav a {
  font-size: var(--fs-body-s);
  color: rgba(253, 251, 250, .68);
  text-decoration: none;
  transition: color 240ms var(--ease);
}
.footer__nav a:hover { color: var(--ft-paper); }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
}
.footer__bottom p, .footer__bottom a {
  font-family: var(--font-mono);
  font-size: var(--fs-body-s);
  color: rgba(253, 251, 250, .5);
  text-decoration: none;
}
.footer__bottom a:hover { color: var(--ft-paper); }

/* ---------- 18.B KOYU MOD DUZELTMELERI ----------
   Acik modda ink yuzeyler sayfadan koyu olarak one cikar. Koyu modda
   ayni yuzeyler zeminle ayni tona duserdi; hiyerarsi korunsun diye
   ink olceginin bir ust basamagina alinirlar. */

@media (prefers-color-scheme: dark) {
  .contrast__cell--accent {
    background: var(--ft-ink-80);
  }
  .svc--ink,
  .svc--geo {
    background: var(--ft-ink-80);
    border-color: var(--ft-ink-70);
  }
  .svc--ink .svc__icon,
  .svc--geo .svc__icon { background: rgba(253, 251, 250, .12); }
}

/* ---------- 19. HAREKET ---------- */

/* Gizleme yalnizca JavaScript calistiginda uygulanir.
   Betik yuklenmezse icerik oldugu gibi gorunur. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 760ms var(--ease), transform 760ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 19.B ACILIS GIRISI ----------
   Sayfa acildiginda acilis metni ve gorseli sirayla yerine oturur.
   Sira, okuma sirasini destekler. */

@media (prefers-reduced-motion: no-preference) {
  .js .hero__copy > * {
    opacity: 0;
    animation: rise-in 900ms var(--ease) forwards;
  }
  .js .hero__copy > *:nth-child(1) { animation-delay: 100ms; }
  .js .hero__copy > *:nth-child(2) { animation-delay: 220ms; }
  .js .hero__copy > *:nth-child(3) { animation-delay: 360ms; }
  .js .hero__copy > *:nth-child(4) { animation-delay: 500ms; }

  .js .hero__art {
    opacity: 0;
    animation: art-in 1200ms var(--ease) 300ms forwards;
  }
  .js .hero .eyebrow::before {
    width: 0;
    animation: line-grow 620ms var(--ease) 420ms forwards;
  }
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: none; }
}
@keyframes art-in {
  from { opacity: 0; transform: scale(.93); }
  to { opacity: 1; transform: none; }
}
@keyframes line-grow { to { width: 22px; } }

/* ---------- 19.C GORUNURKEN CALISAN DETAYLAR ---------- */

@media (prefers-reduced-motion: no-preference) {
  /* Ust bilgi cizgisi bolum goruntuye girince cizilir. */
  .js [data-reveal] .eyebrow::before { width: 0; }
  .js [data-reveal].is-visible .eyebrow::before {
    animation: line-grow 620ms var(--ease) 180ms forwards;
  }

  /* Sari marker soldan saga cekilir. */
  .js .marker { background-size: 0 0.34em; }
  .js .is-visible .marker,
  .js [data-reveal].is-visible .marker {
    animation: marker-draw 760ms var(--ease) 260ms forwards;
  }

  /* Radar isaretleri sirayla nabiz atar. */
  .radar__blips circle { animation: blip 3.4s ease-in-out infinite; }
  .radar__blips circle:nth-child(2) { animation-delay: .85s; }
  .radar__blips circle:nth-child(3) { animation-delay: 1.7s; }
  .radar__blips circle:nth-child(4) { animation-delay: 2.55s; }
}

/* Liste ve sutunlar tek blok halinde degil, sirayla yerine oturur. */
@media (prefers-reduced-motion: no-preference) {
  .js .scope.is-visible .scope__col,
  .js .radar__list.is-visible li,
  .js .crisis__steps.is-visible .crisis__step {
    animation: rise-in 620ms var(--ease) backwards;
  }
  .js .scope.is-visible .scope__col:nth-child(1),
  .js .radar__list.is-visible li:nth-child(1),
  .js .crisis__steps.is-visible .crisis__step:nth-child(1) { animation-delay: 60ms; }
  .js .scope.is-visible .scope__col:nth-child(2),
  .js .radar__list.is-visible li:nth-child(2),
  .js .crisis__steps.is-visible .crisis__step:nth-child(2) { animation-delay: 150ms; }
  .js .scope.is-visible .scope__col:nth-child(3),
  .js .radar__list.is-visible li:nth-child(3),
  .js .crisis__steps.is-visible .crisis__step:nth-child(3) { animation-delay: 240ms; }
  .js .scope.is-visible .scope__col:nth-child(4),
  .js .radar__list.is-visible li:nth-child(4),
  .js .crisis__steps.is-visible .crisis__step:nth-child(4) { animation-delay: 330ms; }
  .js .crisis__steps.is-visible .crisis__step:nth-child(5) { animation-delay: 420ms; }
  .js .crisis__steps.is-visible .crisis__step:nth-child(6) { animation-delay: 510ms; }
}

@keyframes marker-draw { to { background-size: 100% 0.34em; } }
@keyframes blip {
  0%, 100% { opacity: .3; }
  50% { opacity: 1; }
}

/* ---------- 19.D DIYAGRAMIN KENDINI CIZMESI ----------
   Bolum goruntuye girdiginde once halka, sonra baglantilar, sonra
   merkez ve etiketler gelir: sistemin nasil kuruldugu sirayla okunur. */

@media (prefers-reduced-motion: no-preference) {
  .js .diagram__ring { opacity: 0; transform-origin: 380px 235px; }
  .js .diagram__link line { stroke-dasharray: 1; stroke-dashoffset: 1; }
  .js .diagram__core-g { opacity: 0; transform-origin: 380px 235px; }
  .js .diagram__node > g { opacity: 0; }

  .js .diagram.is-drawn .diagram__ring {
    animation: ring-in 1000ms var(--ease) forwards;
  }
  .js .diagram.is-drawn .diagram__link line {
    animation: draw-line 620ms var(--ease) forwards;
  }
  .js .diagram.is-drawn .diagram__link line:nth-child(1) { animation-delay: 320ms; }
  .js .diagram.is-drawn .diagram__link line:nth-child(2) { animation-delay: 400ms; }
  .js .diagram.is-drawn .diagram__link line:nth-child(3) { animation-delay: 480ms; }
  .js .diagram.is-drawn .diagram__link line:nth-child(4) { animation-delay: 560ms; }
  .js .diagram.is-drawn .diagram__link line:nth-child(5) { animation-delay: 640ms; }
  .js .diagram.is-drawn .diagram__link line:nth-child(6) { animation-delay: 720ms; }

  .js .diagram.is-drawn .diagram__core-g {
    animation: core-in 760ms var(--ease) 120ms forwards;
  }
  .js .diagram.is-drawn .diagram__node > g {
    animation: node-in 620ms var(--ease) forwards;
  }
  .js .diagram.is-drawn .diagram__node > g:nth-child(1) { animation-delay: 460ms; }
  .js .diagram.is-drawn .diagram__node > g:nth-child(2) { animation-delay: 540ms; }
  .js .diagram.is-drawn .diagram__node > g:nth-child(3) { animation-delay: 620ms; }
  .js .diagram.is-drawn .diagram__node > g:nth-child(4) { animation-delay: 700ms; }
  .js .diagram.is-drawn .diagram__node > g:nth-child(5) { animation-delay: 780ms; }
  .js .diagram.is-drawn .diagram__node > g:nth-child(6) { animation-delay: 860ms; }
}

@keyframes ring-in {
  from { opacity: 0; transform: scale(.86); }
  to { opacity: 1; transform: none; }
}
@keyframes draw-line { to { stroke-dashoffset: 0; } }
@keyframes core-in {
  from { opacity: 0; transform: scale(.6); }
  to { opacity: 1; transform: none; }
}
@keyframes node-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 19.E PARALLAX ----------
   Kaydirmaya bagli CSS animasyonlari. Destekleyen tarayicilarda katmanlar
   farkli hizda hareket eder, desteklemeyende sayfa oldugu gibi kalir.
   Yalnizca transform kullanilir, JavaScript calismaz. */

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: scroll()) {

    /* Acilis: dort katman dort ayri hizda hareket edip derinlik kurar. */
    .hero__grid-lines {
      animation: grid-drift linear both;
      animation-timeline: scroll(root block);
      animation-range: 0 100vh;
    }
    .hero__plate {
      animation: plate-drift linear both;
      animation-timeline: scroll(root block);
      animation-range: 0 100vh;
    }
    .hero__mark {
      animation: mark-drift linear both;
      animation-timeline: scroll(root block);
      animation-range: 0 100vh;
    }
    .hero__cut--2 {
      animation: cut-drift linear both;
      animation-timeline: scroll(root block);
      animation-range: 0 100vh;
    }
    .hero__copy {
      animation: copy-drift linear both;
      animation-timeline: scroll(root block);
      animation-range: 0 100vh;
    }

    /* Bolum baslikları ekrandan gecerken kayar: sayfaya derinlik verir.
       Govde metni sabit kalir, yalnizca baslik hareket eder. */
    .section-head h2,
    .radar h2,
    .crisis h2,
    .about__grid h2 {
      animation: head-drift linear both;
      animation-timeline: view();
      animation-range: entry 15% exit 85%;
    }

    /* Biz kimiz gorselindeki sembol, bolum gecerken yukselir. */
    .about__figure-mark {
      animation: figure-drift linear both;
      animation-timeline: view();
      animation-range: entry 0% exit 100%;
    }
  }
}

@keyframes plate-drift { to { transform: translateY(-72px); } }
@keyframes grid-drift { to { transform: translateY(46px); } }
@keyframes cut-drift { to { transform: translateY(74px); } }
@keyframes copy-drift { to { transform: translateY(-34px); } }
@keyframes mark-drift {
  from { transform: translate(-50%, -50%); }
  to { transform: translate(-50%, calc(-50% - 152px)); }
}
@keyframes head-drift {
  from { transform: translateY(34px); }
  to { transform: translateY(-34px); }
}
@keyframes figure-drift {
  from { transform: translate(-50%, calc(-50% + 52px)); }
  to { transform: translate(-50%, calc(-50% - 52px)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}