/* ============================================================
   SAYRU — Design System
   "Kadim Bilgelikten Modern Disipline"
   Command-center / technology-observatory visual language.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=Manrope:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* ---- Brand palette (derived from logo) ---- */
  --navy:        #082A6B;   /* primary navy */
  --navy-deep:   #05152F;   /* deep navy — command-center ground */
  --navy-900:    #030D1F;   /* darkest */
  --blue:        #0E4DA4;   /* corporate blue */
  --cyan:        #18C5F4;   /* accent cyan */
  --cyan-soft:   #5BD8F8;
  --bg:          #F7FAFC;   /* page background */
  --bg-alt:      #EDF3F8;   /* alt section */
  --ink:         #1A2433;   /* text */
  --ink-soft:    #4A5871;   /* muted text */
  --ink-faint:   #8595AD;   /* faint */
  --white:       #FFFFFF;
  --line:        #DCE6EF;   /* hairlines on light */
  --line-dk:     rgba(91,216,248,0.16); /* hairlines on dark */

  /* ---- Fonts ---- */
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body:    'Manrope', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, monospace;

  /* ---- Type scale ---- */
  --t-hero:   clamp(38px, 4.4vw, 58px);
  --t-h1:     clamp(34px, 4vw, 54px);
  --t-h2:     clamp(27px, 2.7vw, 38px);
  --t-h3:     22px;
  --t-body:   17px;
  --t-small:  15px;
  --t-micro:  13px;
  --t-mono:   12.5px;

  /* ---- Tweakable: density (whitespace) ---- */
  --density: 1;
  --section-pad: calc(118px * var(--density));
  --gap: calc(28px * var(--density));

  /* ---- Tweakable: cyan glow strength (0 = flat, 1 = default, 1.6 = vivid) ---- */
  --glow: 1;
  --glow-cyan: 0 0 calc(40px * var(--glow)) rgba(24,197,244, calc(0.45 * var(--glow)));
  --glow-soft: 0 0 calc(24px * var(--glow)) rgba(24,197,244, calc(0.28 * var(--glow)));

  /* ---- Shadows ---- */
  --sh-sm: 0 1px 2px rgba(8,42,107,0.06), 0 2px 8px rgba(8,42,107,0.05);
  --sh-md: 0 4px 14px rgba(8,42,107,0.08), 0 16px 40px rgba(8,42,107,0.07);
  --sh-lg: 0 10px 30px rgba(8,42,107,0.10), 0 30px 70px rgba(8,42,107,0.12);

  /* ---- Radii ---- */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 30px;

  --maxw: 1280px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.08; letter-spacing: -0.02em; margin: 0; color: var(--navy); }
p { margin: 0; }
::selection { background: rgba(24,197,244,.28); }

/* ---- Layout helpers ---- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.section { padding: var(--section-pad) 0; position: relative; }
.section--tight { padding: calc(var(--section-pad) * .62) 0; }

/* ---- Eyebrow / kicker (mono, command-center label) ---- */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--t-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blue);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}
.kicker::before {
  content: "";
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow-soft);
  animation: pulse 2.4s var(--ease) infinite;
}
.kicker--ondark { color: var(--cyan-soft); }
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.7); }
}

.section-head { max-width: 720px; margin-bottom: calc(var(--gap) * 1.9); }
.section-head h2 { font-size: var(--t-h2); margin: 18px 0 0; }
.section-head .lead { margin-top: 16px; color: var(--ink-soft); font-size: 19px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .kicker { justify-content: center; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600; font-size: 15.5px;
  padding: 14px 26px;
  border-radius: 100px;
  border: 1px solid transparent;
  transition: all .35s var(--ease);
  white-space: nowrap;
}
.btn .ar { transition: transform .35s var(--ease); }
.btn:hover .ar { transform: translateX(4px); }
.btn--primary {
  background: linear-gradient(180deg, var(--blue), var(--navy));
  color: #fff;
  box-shadow: 0 8px 22px rgba(14,77,164,.28);
}
.btn--primary:hover { box-shadow: 0 10px 30px rgba(14,77,164,.4), var(--glow-soft); transform: translateY(-2px); }
.btn--cyan {
  background: var(--cyan); color: var(--navy-deep);
  box-shadow: 0 8px 22px rgba(24,197,244,.32);
}
.btn--cyan:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(24,197,244,.5), var(--glow-cyan); }
.btn--ghost {
  background: transparent; color: var(--navy);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--blue); color: var(--blue); background: rgba(14,77,164,.04); }
.btn--ghost-light {
  background: rgba(255,255,255,.05); color: #fff;
  border-color: rgba(91,216,248,.35);
  backdrop-filter: blur(6px);
}
.btn--ghost-light:hover { border-color: var(--cyan); background: rgba(91,216,248,.1); }

/* ============================================================
   COMMAND-CENTER PRIMITIVES
   ============================================================ */

/* Grid backdrop for dark panels */
.cc-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(91,216,248,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91,216,248,.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000 30%, transparent 78%);
          mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000 30%, transparent 78%);
  pointer-events: none;
}

/* Status pill */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .12em;
  text-transform: uppercase;
  padding: 6px 12px; border-radius: 100px;
  border: 1px solid var(--line-dk);
  background: rgba(91,216,248,.06);
  color: var(--cyan-soft);
}
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: #34d399; box-shadow: 0 0 8px #34d399; }

/* Concentric radar rings (the "eye") */
.radar { position: relative; }
.radar::before, .radar::after {
  content:""; position:absolute; border-radius:50%;
  border:1px solid var(--line-dk); inset:0; margin:auto;
}

/* Image placeholder (striped, monospace label) */
.imgph {
  position: relative; overflow: hidden;
  background:
    repeating-linear-gradient(135deg, rgba(14,77,164,.05) 0 12px, rgba(14,77,164,.02) 12px 24px),
    var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  display: grid; place-items: center;
  color: var(--ink-faint);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .08em;
  text-transform: uppercase; text-align: center;
}
.imgph::after {
  content: ""; position: absolute; left: 14px; top: 14px;
  width: 22px; height: 22px;
  border-left: 2px solid var(--line); border-top: 2px solid var(--line);
}

/* image-slot styling hook */
image-slot { border-radius: var(--r-md); overflow: hidden; }
.cms-img { overflow: hidden; border-radius: var(--r-md); }
.cms-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.cms-img--in img { animation: cmsImgIn .5s ease both; }
@keyframes cmsImgIn { from { opacity: 0; transform: scale(1.02); } to { opacity: 1; transform: none; } }

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  * { animation: none !important; scroll-behavior: auto; }
}

/* ---- Utility ---- */
.dark { background: var(--navy-deep); color: #cfdcec; }
.dark h1, .dark h2, .dark h3 { color: #fff; }
.eyebrow-num { font-family: var(--font-mono); color: var(--cyan); font-size: 13px; letter-spacing: .1em; }
.mono { font-family: var(--font-mono); }
.nowrap { white-space: nowrap; }
.grad-cyan { background: linear-gradient(135deg, var(--cyan), var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-thumb { background: #c4d3e2; border-radius: 10px; border: 3px solid var(--bg); }
::-webkit-scrollbar-track { background: var(--bg); }

/* ============================================================
   RESPONSIVE — global spacing & type scaling (phones/tablets)
   ============================================================ */
/* dekoratif glow/ring'lerin yatay kaydırma yapmasını engelle.
   overflow-x: clip scroll konteyneri oluşturmaz; sticky header bozulmaz. */
html, body { overflow-x: clip; max-width: 100%; }
/* uzun kırılmaz metinler (e-posta, URL, mono) taşmayı tetiklemesin */
.footer__dev, .footer__tax, .topbar__item, .hero__count, .crumb { overflow-wrap: anywhere; }

@media (max-width: 860px) {
  :root {
    --section-pad: calc(78px * var(--density));
    --gap: calc(22px * var(--density));
  }
  .wrap { padding: 0 22px; }
  .section-head { margin-bottom: calc(var(--gap) * 1.5); }
  .section-head .lead { font-size: 17px; }
  /* aksiyon butonları sığmazsa alta sarsın */
  .hero__actions, .shero__actions, .cta__actions { flex-wrap: wrap; }
}

@media (max-width: 520px) {
  :root {
    --section-pad: calc(56px * var(--density));
    --t-body: 16px;
    --t-h3: 20px;
  }
  body { line-height: 1.6; }
  .wrap { padding: 0 16px; }
  .section-head .lead { font-size: 15.5px; }
  /* butonlar parmakla rahat basılsın, taşmasın */
  .btn { padding: 13px 20px; font-size: 15px; }
  .hero__actions .btn, .shero__actions .btn, .cta__actions .btn { width: 100%; justify-content: center; }
}