/* =========================================================
   hasanaker.com — Dark marka kimliği
   PDF'in görsel diliyle uyumlu
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #000000;
  --bg-2: #0a0a0a;
  --surface: #111111;
  --surface-2: #161616;
  --surface-3: #1c1c1c;
  --border: #222222;
  --border-soft: #181818;

  --text: #ffffff;
  --text-2: #d4d4d4;
  --dim: #8a8a8a;
  --muted: #555555;

  /* Accent renkleri — PDF'ten alındı */
  --violet: #7c6fff;
  --violet-soft: rgba(124, 111, 255, 0.12);
  --violet-strong: #5d4aff;

  --green: #22c55e;
  --green-soft: rgba(34, 197, 94, 0.12);

  --orange: #fb923c;
  --orange-soft: rgba(251, 146, 60, 0.12);

  --blue: #60a5fa;
  --pink: #f472b6;
  --yellow: #fbbf24;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text-2);
  font: 400 16px/1.6 "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
}
a { color: inherit; text-decoration: none; transition: opacity 0.15s, color 0.15s; }
img, svg { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
}
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 32px; }

@media (max-width: 768px) {
  .container { padding: 0 24px; }
  body { font-size: 15px; }
}

/* ========== TYPOGRAPHY ========== */

.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--violet);
}
.eyebrow.green { color: var(--green); }
.eyebrow.orange { color: var(--orange); }
.eyebrow.dim { color: var(--dim); }

.h-display {
  font-size: clamp(54px, 8vw, 108px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.98;
  color: var(--text);
}
.h-1 {
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--text);
}
.h-2 {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text);
}
.h-3 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
}

.lead {
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.55;
  color: var(--dim);
  max-width: 680px;
}

/* ========== NAV ========== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled {
  background: rgba(0, 0, 0, 0.88);
  border-bottom-color: var(--border);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-brand {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-brand::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--violet);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--violet);
}
.nav-links { display: flex; gap: 32px; font-size: 14px; font-weight: 500; color: var(--dim); }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--violet);
  border-radius: 2px;
}
.nav-cta {
  background: var(--violet);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
}
.nav-cta:hover { background: var(--violet-strong); transform: translateY(-1px); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 32px; height: 32px;
  position: relative;
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 4px; right: 4px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s;
}
.nav-toggle span:nth-child(1) { top: 11px; }
.nav-toggle span:nth-child(2) { bottom: 11px; }

@media (max-width: 900px) {
  .nav-inner { padding: 14px 24px; }
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--text); }
  .nav-toggle { display: block; z-index: 101; }
  .nav-toggle.open span:nth-child(1) { top: 15px; transform: rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { bottom: 15px; transform: rotate(-45deg); }
  .nav-cta { display: none; }
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
}
.btn-primary {
  background: var(--violet);
  color: #fff;
}
.btn-primary:hover { background: var(--violet-strong); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(124, 111, 255, 0.35); }
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--text); background: var(--surface); }
.btn-white {
  background: var(--text);
  color: var(--bg);
}
.btn-white:hover { background: #e4e4e4; transform: translateY(-2px); }

/* ========== PAGE HEAD ========== */

.page-head {
  padding: 180px 0 80px;
  border-bottom: 1px solid var(--border);
}
.page-head .eyebrow { margin-bottom: 16px; }
.page-head .lead { margin-top: 24px; max-width: 720px; }

/* ========== SECTION ========== */

.section { padding: 100px 0; border-bottom: 1px solid var(--border); position: relative; }
.section-head { margin-bottom: 60px; max-width: 900px; }
.section-head .eyebrow { margin-bottom: 16px; }
.section-head .h-2 { margin-bottom: 20px; }

/* ========== CARDS ========== */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--text); transform: translateY(-2px); }
.card.violet { background: linear-gradient(180deg, var(--violet-soft) 0%, var(--surface) 100%); border-color: var(--violet); }
.card.green { background: linear-gradient(180deg, var(--green-soft) 0%, var(--surface) 100%); border-color: var(--green); }
.card.orange { background: linear-gradient(180deg, var(--orange-soft) 0%, var(--surface) 100%); border-color: var(--orange); }

.card-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
  color: var(--violet);
}
.card-label.green { color: var(--green); }
.card-label.orange { color: var(--orange); }
.card h3, .card h4 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  margin-bottom: 10px;
  line-height: 1.2;
}
.card p { color: var(--text-2); font-size: 14px; line-height: 1.55; }

/* ========== FOOTER ========== */

.footer {
  background: #050505;
  padding: 80px 0 32px;
  border-top: 1px solid var(--border);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.footer-brand h4 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}
.footer-brand p { color: var(--dim); font-size: 14px; line-height: 1.5; max-width: 360px; }
.footer-col h5 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--dim);
}
.footer-col a:hover { color: var(--text); }

.footer-bot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 12px;
  color: var(--muted);
}

@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bot { flex-direction: column; gap: 12px; }
}

/* ========== REVEAL ========== */
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }