/* ============================================================================
   AIZEC Kurumsal site tasarım sistemi / Corporate site design system
   Bağımsız, derleme gerektirmeyen CSS. Ürün uygulamasının Tailwind'inden ayrıdır.
   ========================================================================== */

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[class], ol[class] { list-style: none; padding: 0; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Mürekkep / lacivert skalası */
  --ink-900: #050C17;
  --ink-800: #0A1729;
  --ink-700: #10243E;
  --ink-600: #1B3557;
  --ink-500: #2B4C74;

  /* Nötrler */
  --paper: #FFFFFF;
  --paper-alt: #F4F7FB;
  --paper-alt2: #EDF2F8;
  --line: #DDE5EE;
  --line-strong: #C6D2E0;
  --body: #3D4E63;
  --muted: #64758B;

  /* Vurgu */
  --accent: #2456E5;
  --accent-700: #1B41B4;
  --accent-100: #E6EDFE;
  --cyan: #35D0E8;

  /* Otonomi seviyesi triadı (ürün ile ortak dil) */
  --lvl-green: #109B6B;
  --lvl-amber: #D08700;
  --lvl-red: #D4353B;

  /* Yüzeyler */
  --fg: var(--ink-900);
  --bg: var(--paper);
  --surface: var(--paper);
  --surface-line: var(--line);

  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(9, 22, 43, .06), 0 2px 8px rgba(9, 22, 43, .05);
  --shadow-md: 0 2px 4px rgba(9, 22, 43, .05), 0 12px 32px rgba(9, 22, 43, .09);
  --shadow-lg: 0 4px 8px rgba(9, 22, 43, .06), 0 28px 64px rgba(9, 22, 43, .16);

  --container: 1200px;
  --gutter: clamp(20px, 5vw, 48px);
  --section-y: clamp(64px, 8.5vw, 124px);

  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

/* Koyu bölümler için token devri */
.on-ink {
  --fg: #FFFFFF;
  --body: #B7C6DA;
  --muted: #8DA0BA;
  --line: rgba(255, 255, 255, .13);
  --line-strong: rgba(255, 255, 255, .22);
  --surface: rgba(255, 255, 255, .045);
  --surface-line: rgba(255, 255, 255, .12);
  --accent-100: rgba(53, 208, 232, .12);
  color: var(--fg);
}

/* --- Temel ---------------------------------------------------------------- */
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--body);
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, .h1, .h2, .h3, .h4 {
  color: var(--fg);
  font-weight: 640;
  line-height: 1.1;
  letter-spacing: -0.028em;
  text-wrap: balance;
}

.h1, h1 { font-size: clamp(2.35rem, 1.35rem + 3.5vw, 4.05rem); letter-spacing: -0.035em; }
.h2, h2 { font-size: clamp(1.85rem, 1.25rem + 2.1vw, 2.95rem); }
.h3, h3 { font-size: clamp(1.25rem, 1.08rem + 0.7vw, 1.6rem); line-height: 1.22; letter-spacing: -0.022em; }
.h4, h4 { font-size: 1.06rem; line-height: 1.35; letter-spacing: -0.015em; font-weight: 640; }

p { text-wrap: pretty; }

.lede {
  font-size: clamp(1.05rem, 0.98rem + 0.42vw, 1.28rem);
  line-height: 1.6;
  color: var(--body);
  letter-spacing: -0.011em;
}

.small { font-size: .935rem; line-height: 1.6; }
.tiny { font-size: .82rem; line-height: 1.55; }
.muted { color: var(--muted); }
.strong-fg { color: var(--fg); font-weight: 600; }

::selection { background: var(--accent); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
.on-ink :focus-visible { outline-color: var(--cyan); }

.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 200;
  background: var(--ink-900); color: #fff; padding: 12px 18px;
  border-radius: 0 0 10px 10px; font-weight: 600; font-size: .9rem;
  transition: top .18s ease;
}
.skip-link:focus { top: 0; }

/* --- Yerleşim ------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--wide { max-width: 1360px; }
.container--narrow { max-width: 820px; }

.section { padding-block: var(--section-y); position: relative; }
.section--tight { padding-block: clamp(48px, 5.5vw, 80px); }
.section--alt { background: var(--paper-alt); }
.section--ink { background: var(--ink-900); }
.section--ink-soft { background: var(--ink-800); }

.stack > * + * { margin-top: var(--stack-gap, 18px); }
.stack-sm { --stack-gap: 10px; }
.stack-lg { --stack-gap: 28px; }

.grid { display: grid; gap: clamp(16px, 1.8vw, 26px); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.split--lead { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }
@media (max-width: 940px) { .split, .split--lead { grid-template-columns: minmax(0, 1fr); } }

.section-head { max-width: 760px; }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head .lede { margin-top: 18px; }

/* --- Eyebrow / etiketler -------------------------------------------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .765rem; font-weight: 660; letter-spacing: .13em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 16px;
}
.on-ink .eyebrow { color: var(--cyan); }
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: currentColor; opacity: .75;
}
.section-head--center .eyebrow { justify-content: center; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 10px; border-radius: 999px;
  font-size: .78rem; font-weight: 600; letter-spacing: -0.005em;
  border: 1px solid var(--surface-line); background: var(--surface);
  color: var(--fg);
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.pill--green { color: var(--lvl-green); border-color: rgba(16, 155, 107, .3); background: rgba(16, 155, 107, .08); }
.pill--amber { color: var(--lvl-amber); border-color: rgba(208, 135, 0, .3); background: rgba(208, 135, 0, .08); }
.pill--red   { color: var(--lvl-red);   border-color: rgba(212, 53, 59, .3);  background: rgba(212, 53, 59, .08); }

/* --- Butonlar ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 22px; border-radius: 10px; border: 1px solid transparent;
  font-size: .95rem; font-weight: 620; letter-spacing: -0.01em;
  cursor: pointer; white-space: nowrap;
  transition: transform .16s ease, background-color .16s ease, border-color .16s ease,
    box-shadow .16s ease, color .16s ease;
}
.btn svg { width: 16px; height: 16px; flex: none; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(36, 86, 229, .28); }
.btn--primary:hover { background: var(--accent-700); box-shadow: 0 10px 26px rgba(36, 86, 229, .34); }

.btn--dark { background: var(--ink-900); color: #fff; }
.btn--dark:hover { background: var(--ink-700); }

.btn--light { background: #fff; color: var(--ink-900); }
.btn--light:hover { background: #EEF3FA; }

.btn--outline { border-color: var(--line-strong); color: var(--fg); background: transparent; }
.btn--outline:hover { border-color: var(--fg); background: rgba(10, 23, 41, .035); }
.on-ink .btn--outline:hover { background: rgba(255, 255, 255, .07); }

.btn--sm { padding: 9px 15px; font-size: .875rem; border-radius: 9px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--accent); font-weight: 620; font-size: .93rem;
}
.on-ink .link-arrow { color: var(--cyan); }
.link-arrow svg { width: 15px; height: 15px; transition: transform .18s ease; }
.link-arrow:hover svg { transform: translateX(3px); }

/* --- Üst menü ------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .2s ease, background-color .2s ease;
}
.site-header.is-stuck { box-shadow: 0 1px 0 rgba(9, 22, 43, .06), 0 10px 30px rgba(9, 22, 43, .07); }

.header--ink {
  background: rgba(5, 12, 23, .72);
  border-bottom-color: rgba(255, 255, 255, .1);
}
.header--ink.is-stuck { background: rgba(5, 12, 23, .92); }

.nav {
  display: flex; align-items: center; gap: 28px;
  height: 72px;
}
.nav__brand { display: inline-flex; align-items: center; color: var(--fg); }
/* Kilit currentColor ile cizilir: acik baslikta murekkep, .on-ink alt bilgide beyaz. */
.nav__brand .brand-logo { height: 38px; width: auto; flex: none; display: block; }
.nav__brand--footer .brand-logo { height: 42px; }
@media (max-width: 420px) { .nav__brand .brand-logo { height: 32px; } }

.nav__menu { display: flex; align-items: center; gap: 3px; margin-left: 6px; }
.nav__spacer { flex: 1 1 auto; }
.nav__actions { display: flex; align-items: center; gap: 10px; }

.nav__item { position: relative; }
.nav__link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 13px; border-radius: 9px;
  font-family: inherit; font-size: .935rem; font-weight: 560; color: var(--fg);
  background: transparent; border: 0; cursor: pointer;
  transition: background-color .15s ease, color .15s ease;
}
.nav__link:hover { background: rgba(10, 23, 41, .05); }
.on-ink .nav__link:hover { background: rgba(255, 255, 255, .08); }
.nav__link[aria-current="page"] { color: var(--accent); font-weight: 640; }
.on-ink .nav__link[aria-current="page"] { color: var(--cyan); }
.nav__link .chev { width: 13px; height: 13px; opacity: .55; transition: transform .18s ease; }
.nav__item.is-open .nav__link .chev { transform: rotate(180deg); }

/* Açılır panel */
.nav__panel {
  position: absolute; top: calc(100% + 10px); left: -12px;
  min-width: 560px; padding: 16px;
  background: #fff; color: var(--ink-900);
  border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .16s ease, transform .16s ease, visibility .16s;
}
.nav__item.is-open .nav__panel { opacity: 1; visibility: visible; transform: translateY(0); }
.nav__panel a {
  display: block; padding: 12px 13px; border-radius: 11px;
  transition: background-color .14s ease;
}
.nav__panel a:hover { background: var(--paper-alt); }
.nav__panel .t { font-weight: 640; font-size: .93rem; color: var(--ink-900); letter-spacing: -0.015em; }
.nav__panel .d { font-size: .82rem; color: var(--muted); line-height: 1.45; margin-top: 3px; }

/* Dil değiştirici */
.lang {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line-strong); border-radius: 9px; overflow: hidden;
}
.lang a {
  padding: 6px 11px; font-size: .8rem; font-weight: 640; letter-spacing: .02em;
  color: var(--muted); transition: background-color .14s ease, color .14s ease;
}
.lang a[aria-current="true"] { background: var(--ink-900); color: #fff; }
.on-ink .lang a[aria-current="true"] { background: rgba(255, 255, 255, .92); color: var(--ink-900); }
.lang a:not([aria-current="true"]):hover { color: var(--fg); background: rgba(10, 23, 41, .05); }
.on-ink .lang a:not([aria-current="true"]):hover { background: rgba(255, 255, 255, .1); }

.nav__toggle {
  display: none; width: 42px; height: 42px; align-items: center; justify-content: center;
  border: 1px solid var(--line-strong); border-radius: 10px; background: transparent;
  cursor: pointer;
}
.nav__toggle svg { width: 19px; height: 19px; }

@media (max-width: 1080px) {
  .nav__menu, .nav__actions .btn--desktop { display: none; }
  .nav__toggle { display: inline-flex; }
}

/* Mobil menü */
.mobile-menu {
  position: fixed; inset: 72px 0 0; z-index: 89;
  background: #fff; color: var(--ink-900);
  padding: 22px var(--gutter) 48px;
  overflow-y: auto;
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu__group { border-bottom: 1px solid var(--line); padding: 6px 0 14px; }
.mobile-menu__group > .gt {
  font-size: .74rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--muted); font-weight: 680; padding: 12px 0 6px;
}
.mobile-menu a.ml {
  display: block; padding: 11px 0; font-size: 1.02rem; font-weight: 580; color: var(--ink-900);
}
.mobile-menu a.ml .d { display: block; font-size: .82rem; font-weight: 400; color: var(--muted); }
.mobile-menu .btn { width: 100%; margin-top: 12px; }
body.menu-open { overflow: hidden; }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink-900);
  padding-block: clamp(64px, 8vw, 104px) clamp(64px, 8vw, 110px);
}
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto -10%; height: 130%;
  background:
    radial-gradient(58% 46% at 18% 8%, rgba(36, 86, 229, .40), transparent 62%),
    radial-gradient(46% 40% at 88% 4%, rgba(53, 208, 232, .22), transparent 60%),
    radial-gradient(60% 50% at 62% 92%, rgba(27, 65, 180, .28), transparent 65%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(72% 62% at 50% 30%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(72% 62% at 50% 30%, #000 25%, transparent 78%);
}
.hero > .container { position: relative; z-index: 1; }
.hero__grid {
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(36px, 4.5vw, 64px); align-items: center;
}
@media (max-width: 1000px) { .hero__grid { grid-template-columns: minmax(0, 1fr); } }
.hero h1 { margin-bottom: 22px; }
.hero .lede { max-width: 56ch; }
.hero .btn-row { margin-top: 32px; }
.hero__note { margin-top: 22px; font-size: .86rem; color: var(--muted); }

.badge-strip {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px;
}
.badge-strip .pill { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .15); }

/* Hero ürün maketi */
.mock {
  border-radius: 16px; overflow: hidden;
  background: #0B1728;
  border: 1px solid rgba(255, 255, 255, .13);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .5), 0 0 0 1px rgba(255, 255, 255, .04);
}
.mock__bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 14px; background: rgba(255, 255, 255, .05);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.mock__bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .2); }
.mock__url {
  margin-left: 8px; font-family: var(--font-mono); font-size: .72rem;
  color: rgba(255, 255, 255, .45); letter-spacing: -0.01em;
}
.mock__body { padding: 18px; display: grid; gap: 14px; }
.mock__kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mock__kpi {
  background: rgba(255, 255, 255, .045); border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 11px; padding: 12px 13px;
}
.mock__kpi .k { font-size: .68rem; color: rgba(255, 255, 255, .5); letter-spacing: .01em; }
.mock__kpi .v { font-size: 1.32rem; font-weight: 680; color: #fff; letter-spacing: -0.03em; margin-top: 3px; }
.mock__kpi .v small { font-size: .72rem; font-weight: 600; color: var(--cyan); margin-left: 5px; letter-spacing: 0; }

.mock__panel {
  background: rgba(255, 255, 255, .035); border: 1px solid rgba(255, 255, 255, .085);
  border-radius: 12px; padding: 14px;
}
.mock__panel h5 {
  font-size: .74rem; color: rgba(255, 255, 255, .58); font-weight: 620;
  letter-spacing: .06em; text-transform: uppercase; margin-bottom: 12px;
}
.mock__row {
  display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center;
  padding: 9px 0; border-top: 1px solid rgba(255, 255, 255, .07);
  font-size: .8rem; color: rgba(255, 255, 255, .82);
}
.mock__row:first-of-type { border-top: 0; }
.mock__row .who { font-size: .68rem; color: rgba(255, 255, 255, .42); }
.mock__tag {
  font-size: .67rem; font-weight: 680; padding: 3px 8px; border-radius: 999px;
  letter-spacing: .02em;
}
.tag-green { background: rgba(16, 185, 129, .16); color: #34D399; }
.tag-amber { background: rgba(245, 158, 11, .16); color: #FBBF24; }
.tag-red   { background: rgba(239, 68, 68, .16); color: #F87171; }

.mock__bars { display: flex; align-items: flex-end; gap: 7px; height: 62px; }
.mock__bars span {
  flex: 1; border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(36, 86, 229, .75));
  opacity: .85;
  animation: growbar .9s cubic-bezier(.22, 1, .36, 1) backwards;
}
@keyframes growbar { from { height: 4px !important; opacity: 0; } }

/* --- Logo şeridi ---------------------------------------------------------- */
.trustbar { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); }
.trustbar__inner { padding-block: 26px; display: flex; align-items: center; gap: 34px; flex-wrap: wrap; justify-content: center; }
.trustbar__label {
  font-size: .76rem; font-weight: 660; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted); white-space: nowrap;
}
.trustbar__items { display: flex; flex-wrap: wrap; gap: 12px 30px; justify-content: center; }
.trustbar__items span {
  font-size: .92rem; font-weight: 620; color: var(--ink-600); letter-spacing: -0.015em;
  opacity: .78;
}

/* --- Kartlar -------------------------------------------------------------- */
.card {
  background: var(--surface); border: 1px solid var(--surface-line);
  border-radius: var(--radius); padding: clamp(20px, 2vw, 28px);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative; height: 100%;
}
.card--hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.on-ink .card--hover:hover { background: rgba(255, 255, 255, .07); box-shadow: none; }
.card h3, .card h4 { margin-bottom: 9px; }
.card p { font-size: .95rem; }
.card__foot { margin-top: 18px; }

.icon-box {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center; margin-bottom: 18px;
  background: var(--accent-100); color: var(--accent);
  border: 1px solid rgba(36, 86, 229, .16);
}
.on-ink .icon-box { color: var(--cyan); border-color: rgba(53, 208, 232, .22); background: rgba(53, 208, 232, .1); }
.icon-box svg { width: 21px; height: 21px; }

.card--num { padding-top: 26px; }
.card__num {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 700;
  color: var(--accent); letter-spacing: .08em; display: block; margin-bottom: 12px;
}
.on-ink .card__num { color: var(--cyan); }

/* Modül kartı (platform) */
.module {
  display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 18px;
  padding: clamp(20px, 2vw, 26px);
  border: 1px solid var(--surface-line); border-radius: var(--radius);
  background: var(--surface); height: 100%;
}
.module .icon-box { margin-bottom: 0; width: 46px; height: 46px; }
.module ul { margin-top: 14px; display: grid; gap: 7px; }
.module ul li {
  position: relative; padding-left: 20px; font-size: .89rem; color: var(--muted);
}
.module ul li::before {
  content: ""; position: absolute; left: 3px; top: .62em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: .55;
}

/* --- İstatistik bandı ----------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--surface-line); border: 1px solid var(--surface-line); border-radius: var(--radius-lg); overflow: hidden; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .stats { grid-template-columns: minmax(0, 1fr); } }
.stat { background: var(--bg); padding: clamp(22px, 2.4vw, 32px); }
.section--ink .stat, .section--ink-soft .stat { background: var(--ink-900); }
.section--alt .stat { background: var(--paper-alt); }
.stat__v {
  font-size: clamp(1.9rem, 1.4rem + 1.7vw, 2.7rem); font-weight: 680;
  color: var(--fg); letter-spacing: -0.04em; line-height: 1.05;
}
.stat__l { margin-top: 8px; font-size: .92rem; font-weight: 560; color: var(--fg); }
.stat__s { margin-top: 5px; font-size: .8rem; color: var(--muted); line-height: 1.5; }

/* --- Sekmeler ------------------------------------------------------------- */
.tabs__list {
  display: flex; gap: 6px; flex-wrap: wrap;
  border-bottom: 1px solid var(--surface-line); margin-bottom: 32px;
}
.tabs__btn {
  appearance: none; background: transparent; border: 0; cursor: pointer;
  padding: 13px 16px; font-size: .95rem; font-weight: 580; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color .15s ease, border-color .15s ease;
}
.tabs__btn:hover { color: var(--fg); }
.tabs__btn[aria-selected="true"] { color: var(--accent); border-bottom-color: var(--accent); font-weight: 640; }
.on-ink .tabs__btn[aria-selected="true"] { color: var(--cyan); border-bottom-color: var(--cyan); }
.tabs__panel[hidden] { display: none; }
.tabs__panel { animation: fadeUp .3s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } }

/* --- Akordeon ------------------------------------------------------------- */
.acc { border-top: 1px solid var(--surface-line); }
.acc__item { border-bottom: 1px solid var(--surface-line); }
.acc__btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 0; background: transparent; border: 0; cursor: pointer; text-align: left;
  font-size: 1.04rem; font-weight: 600; color: var(--fg); letter-spacing: -0.018em;
}
.acc__btn .ic {
  width: 26px; height: 26px; border-radius: 50%; flex: none; display: grid; place-items: center;
  border: 1px solid var(--line-strong); color: var(--muted); transition: transform .2s ease, background-color .2s ease, color .2s ease;
}
.acc__btn .ic svg { width: 13px; height: 13px; }
.acc__btn[aria-expanded="true"] .ic { transform: rotate(45deg); background: var(--accent); border-color: var(--accent); color: #fff; }
.acc__body { overflow: hidden; height: 0; transition: height .26s cubic-bezier(.4, 0, .2, 1); }
.acc__body > div { padding: 0 0 24px; max-width: 76ch; }

/* --- Zaman çizelgesi ------------------------------------------------------ */
.timeline { position: relative; padding-left: 30px; }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: ""; position: absolute; left: -30px; top: 6px; width: 16px; height: 16px;
  border-radius: 50%; background: var(--bg); border: 3px solid var(--accent);
}
.section--alt .timeline__item::before { background: var(--paper-alt); }
.on-ink .timeline__item::before { background: var(--ink-900); border-color: var(--cyan); }
.timeline__item.is-past::before { border-color: var(--line-strong); }
.timeline__date {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 700;
  letter-spacing: .04em; color: var(--accent); text-transform: uppercase;
}
.on-ink .timeline__date { color: var(--cyan); }
.timeline__item.is-past .timeline__date { color: var(--muted); }
.timeline__item h4 { margin: 6px 0 6px; }
.timeline__item p { font-size: .93rem; }

/* --- Otonomi seviyeleri --------------------------------------------------- */
.levels { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 1.8vw, 24px); }
@media (max-width: 860px) { .levels { grid-template-columns: minmax(0, 1fr); } }
.level {
  border: 1px solid var(--surface-line); border-radius: var(--radius);
  padding: clamp(22px, 2.2vw, 30px); background: var(--surface);
  position: relative; overflow: hidden; height: 100%;
}
.level::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--lc);
}
.level--green { --lc: var(--lvl-green); }
.level--amber { --lc: var(--lvl-amber); }
.level--red   { --lc: var(--lvl-red); }
.level__badge {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
  font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--lc);
}
.level__badge i { width: 9px; height: 9px; border-radius: 50%; background: var(--lc); box-shadow: 0 0 0 4px color-mix(in srgb, var(--lc) 18%, transparent); }
.level dl { margin-top: 18px; display: grid; gap: 12px; }
.level dt { font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); }
.level dd { margin: 3px 0 0; font-size: .92rem; color: var(--fg); }

/* --- Alıntı --------------------------------------------------------------- */
.quote {
  border-left: 3px solid var(--accent); padding: 4px 0 4px 26px;
}
.on-ink .quote { border-left-color: var(--cyan); }
.quote p {
  font-size: clamp(1.15rem, 1.02rem + 0.6vw, 1.5rem); line-height: 1.45;
  color: var(--fg); letter-spacing: -0.022em; font-weight: 520;
}
.quote footer { margin-top: 16px; font-size: .88rem; color: var(--muted); }

/* --- Kaynak kartı --------------------------------------------------------- */
.res { display: flex; flex-direction: column; height: 100%; }
.res__kind {
  font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.on-ink .res__kind { color: var(--cyan); }
.res__meta { margin-top: auto; padding-top: 18px; font-size: .8rem; color: var(--muted); }

/* --- Tablo ---------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--surface-line); border-radius: var(--radius); }
.table { min-width: 640px; font-size: .92rem; }
.table th, .table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--surface-line); vertical-align: top; }
.table thead th {
  font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 700;
  color: var(--muted); background: var(--paper-alt);
}
.section--alt .table thead th { background: var(--paper-alt2); }
.on-ink .table thead th { background: rgba(255, 255, 255, .05); }
.table tbody tr:last-child td { border-bottom: 0; }
.table td:first-child { font-weight: 600; color: var(--fg); }

/* --- Kontrol listesi ------------------------------------------------------ */
.checks { display: grid; gap: 13px; }
.checks li { display: grid; grid-template-columns: 21px minmax(0, 1fr); gap: 12px; font-size: .95rem; }
.checks li svg { width: 21px; height: 21px; color: var(--accent); margin-top: 2px; }
.on-ink .checks li svg { color: var(--cyan); }
.checks li strong { color: var(--fg); font-weight: 620; }

/* --- CTA ------------------------------------------------------------------ */
.cta {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: var(--ink-900); padding: clamp(38px, 5vw, 72px);
  text-align: center;
}
.cta::before {
  content: ""; position: absolute; inset: -60% -20% auto -20%; height: 200%;
  background:
    radial-gradient(46% 46% at 22% 12%, rgba(36, 86, 229, .45), transparent 62%),
    radial-gradient(40% 40% at 82% 20%, rgba(53, 208, 232, .22), transparent 60%);
  pointer-events: none;
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { max-width: 20ch; margin-inline: auto; }
.cta .lede { max-width: 62ch; margin: 18px auto 0; }
.cta .btn-row { justify-content: center; margin-top: 30px; }
.cta__note { margin-top: 20px; font-size: .84rem; color: var(--muted); }

/* --- İletişim ------------------------------------------------------------- */
.contact-card {
  border: 1px solid var(--surface-line); border-radius: var(--radius);
  padding: clamp(22px, 2.4vw, 30px); background: var(--surface); height: 100%;
}
.contact-card .label {
  font-size: .74rem; letter-spacing: .11em; text-transform: uppercase;
  font-weight: 700; color: var(--muted); margin-bottom: 10px;
}
.contact-card .value { font-size: 1.06rem; font-weight: 620; color: var(--fg); letter-spacing: -0.02em; }
.contact-card .value a:hover { color: var(--accent); }
.contact-card p { font-size: .9rem; margin-top: 10px; }

/* --- Footer --------------------------------------------------------------- */
.site-footer { background: var(--ink-900); padding-block: clamp(52px, 6vw, 78px) 30px; }
.footer__top {
  display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(4, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 44px);
}
@media (max-width: 1000px) { .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .footer__top { grid-template-columns: minmax(0, 1fr); } }
.footer__brand .nav__brand { margin-bottom: 16px; }
.footer__brand p { font-size: .9rem; max-width: 34ch; }
.footer__col h5 {
  font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 700;
  color: #fff; margin-bottom: 16px;
}
.footer__col ul { display: grid; gap: 10px; }
.footer__col a { font-size: .9rem; color: var(--body); transition: color .14s ease; }
.footer__col a:hover { color: #fff; }
.footer__bottom {
  margin-top: clamp(36px, 4vw, 54px); padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .11);
  display: flex; flex-wrap: wrap; gap: 16px 26px; align-items: center; justify-content: space-between;
  font-size: .84rem; color: var(--muted);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 18px; }
.footer__legal a:hover { color: #fff; }

/* --- Sayfa başlığı -------------------------------------------------------- */
.page-hero {
  background: var(--ink-900); position: relative; overflow: hidden;
  padding-block: clamp(56px, 6.5vw, 92px) clamp(56px, 6.5vw, 88px);
}
.page-hero::before {
  content: ""; position: absolute; inset: -50% -10% auto -10%; height: 160%;
  background:
    radial-gradient(50% 42% at 12% 6%, rgba(36, 86, 229, .34), transparent 62%),
    radial-gradient(42% 38% at 86% 0%, rgba(53, 208, 232, .18), transparent 60%);
  pointer-events: none;
}
.page-hero > .container { position: relative; z-index: 1; }
.page-hero .lede { max-width: 62ch; margin-top: 20px; }
.page-hero .btn-row { margin-top: 30px; }

.crumbs { display: flex; gap: 9px; align-items: center; font-size: .82rem; color: var(--muted); margin-bottom: 18px; }
.crumbs a:hover { color: #fff; }
.crumbs span { opacity: .5; }

/* --- Kaydırmada belirme --------------------------------------------------- */
[data-reveal] { opacity: 0; transform: translateY(14px); }
.js [data-reveal] { transition: opacity .55s cubic-bezier(.22, 1, .36, 1), transform .55s cubic-bezier(.22, 1, .36, 1); }
[data-reveal].is-in { opacity: 1; transform: none; }
html:not(.js) [data-reveal] { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1 !important; transform: none !important; } }

/* --- Hub & Spoke şeması --------------------------------------------------- */
.hubspoke { display: grid; justify-items: center; }
.hubspoke__hub {
  display: grid; gap: 3px; justify-items: center; text-align: center;
  padding: 22px 30px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--accent);
  box-shadow: 0 10px 34px rgba(36, 86, 229, .14);
  min-width: 260px;
}
.on-ink .hubspoke__hub { border-color: var(--cyan); box-shadow: 0 10px 40px rgba(53, 208, 232, .12); }
.hubspoke__hub .d {
  font-size: .7rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase;
  color: var(--accent);
}
.on-ink .hubspoke__hub .d { color: var(--cyan); }
.hubspoke__hub .t { font-size: 1.06rem; font-weight: 660; color: var(--fg); letter-spacing: -0.022em; }
.hubspoke__hub .s { font-size: .82rem; color: var(--muted); }
.hubspoke__stem {
  width: 2px; height: 30px;
  background: linear-gradient(180deg, var(--accent), var(--line-strong));
}
.on-ink .hubspoke__stem { background: linear-gradient(180deg, var(--cyan), rgba(255, 255, 255, .18)); }
.hubspoke__spokes {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px;
  width: 100%; position: relative; padding-top: 16px;
}
.hubspoke__spokes::before {
  content: ""; position: absolute; top: 0; left: 16.6%; right: 16.6%; height: 16px;
  border-top: 2px solid var(--line-strong);
  border-left: 2px solid var(--line-strong);
  border-right: 2px solid var(--line-strong);
  border-radius: 8px 8px 0 0;
}
.hubspoke__spokes li {
  display: grid; gap: 2px; text-align: center;
  padding: 13px 10px; border-radius: 11px;
  background: var(--surface); border: 1px solid var(--surface-line);
}
.hubspoke__spokes .n { font-size: .88rem; font-weight: 620; color: var(--fg); letter-spacing: -0.015em; }
.hubspoke__spokes .r { font-size: .72rem; color: var(--muted); }
@media (max-width: 520px) {
  .hubspoke__spokes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hubspoke__spokes::before { left: 25%; right: 25%; }
}

/* --- Satır içi kod -------------------------------------------------------- */
code {
  font-family: var(--font-mono); font-size: .86em;
  background: var(--accent-100); color: var(--accent);
  padding: 2px 6px; border-radius: 5px; letter-spacing: -0.01em;
}
.on-ink code { color: var(--cyan); background: rgba(53, 208, 232, .12); }

/* --- Yardımcılar ---------------------------------------------------------- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 18px; }
.mt-3 { margin-top: 28px; }
.mt-4 { margin-top: 40px; }
.mt-5 { margin-top: 56px; }
.center { text-align: center; }
.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;
}
.divider { height: 1px; background: var(--surface-line); border: 0; }