/* ================================================================
   VDSSATINAL.BIZ — Kurumsal Tema
   Konsept: Deep Navy + Electric Cyan — Profesyonel, corporate
   ================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg:       #020b18;
  --bg2:      #05111f;
  --panel:    #071828;
  --panel2:   #092033;
  --accent:   #00d4ff;
  --accent2:  #0096c7;
  --text:     #d0e8f5;
  --text-dim: #6a95b0;
  --border:   rgba(0,212,255,0.15);
  --radius:   14px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  line-height: 1.8; overflow-x: hidden;
}

/* Grid overlay background */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none; z-index: 0;
}

.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  z-index: 9999; width: 0;
  box-shadow: 0 0 15px var(--accent);
}

.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(2,11,24,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.header-container {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; }

.logo-dot {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 800; color: var(--bg);
}

.logo-text {
  font-size: 1.1rem; font-weight: 800;
  color: #fff; letter-spacing: 1px;
}

.nav-links { display: flex; gap: 0.3rem; }
.nav-links a {
  color: var(--text-dim); text-decoration: none;
  padding: 0.5rem 1rem; border-radius: 8px;
  font-size: 0.88rem; font-weight: 500; transition: all 0.2s;
}
.nav-links a:hover { color: var(--accent); background: rgba(0,212,255,0.08); }

.cta-button {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent) !important;
  padding: 0.5rem 1.3rem; border-radius: 8px;
  text-decoration: none; font-size: 0.88rem; font-weight: 700;
  transition: all 0.3s;
}
.cta-button:hover {
  background: var(--accent);
  color: var(--bg) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,212,255,0.3);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 1; }

.hero-intro {
  text-align: center; padding: 7rem 2rem 5rem;
  position: relative;
}

.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.3);
  color: var(--accent);
  padding: 0.4rem 1.2rem; border-radius: 50px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; margin-bottom: 2rem;
}

.hero-intro h1 {
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 800; color: #fff; line-height: 1.2;
  margin-bottom: 1.5rem;
}
.hero-intro h1 span {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.subtitle { color: var(--text-dim); font-size: 1.05rem; max-width: 600px; margin: 0 auto 2.5rem; }

.hero-stats {
  display: flex; justify-content: center; gap: 2rem; flex-wrap: wrap;
  margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--border);
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  display: block;
}
.stat-label { font-size: 0.78rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

.content-block { margin: 2rem 0 6rem; }

/* Two-column layout for sections */
.section {
  background: linear-gradient(135deg, var(--panel), var(--panel2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.section::after {
  content: '';
  position: absolute; bottom: 0; right: 0;
  width: 200px; height: 200px;
  background: radial-gradient(ellipse at bottom right, rgba(0,212,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.section:hover {
  border-color: rgba(0,212,255,0.3);
  box-shadow: 0 0 40px rgba(0,212,255,0.08);
}

.section-number {
  display: inline-block; font-size: 0.7rem; font-weight: 700;
  color: var(--accent); letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 0.5rem;
  border-left: 3px solid var(--accent); padding-left: 8px;
}

.section h2 {
  font-size: 1.6rem; font-weight: 700; color: #fff;
  margin-bottom: 1.5rem; line-height: 1.3;
}

.section img {
  width: 100%; height: 320px; object-fit: cover;
  border-radius: 10px; margin: 1.5rem 0;
  border: 1px solid var(--border);
  transition: opacity 0.3s;
}
.section img:hover { opacity: 0.9; }

.section p { color: var(--text-dim); font-size: 0.98rem; margin-bottom: 1.1rem; line-height: 1.85; text-align: justify; }

a { color: var(--accent); text-decoration: none; font-weight: 600; }
a:hover { color: var(--accent2); text-decoration: underline; }

.footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 4rem 2rem 2rem; margin-top: 4rem; }
.footer-container { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.footer-col h4 { color: var(--accent); font-size: 0.9rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 1.2rem; }
.footer-col a { display: block; color: var(--text-dim); text-decoration: none; margin-bottom: 0.5rem; font-size: 0.88rem; transition: all 0.2s; font-weight: 400; }
.footer-col a:hover { color: var(--accent); transform: translateX(4px); }
.footer-desc { color: var(--text-dim); font-size: 0.88rem; line-height: 1.7; margin-top: 0.8rem; }
.footer-bottom { text-align: center; font-size: 0.82rem; color: var(--text-dim); }

@media (max-width: 768px) {
  .header-container { flex-direction: column; gap: 1rem; }
  .section { padding: 2rem 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .nav-links { display: none; }
}