/* ==========================================================================
   COMP® Endüstriyel Teknoloji & Uygulama Merkezi - Kurumsal Stil Dosyası
   ========================================================================== */

:root {
  --primary-dark: #0f172a;       /* Slate 900 - Derin Gece Mavisi */
  --surface-dark: #1e293b;       /* Slate 800 */
  --border-dark: #334155;        /* Slate 700 */
  --accent-amber: #f59e0b;       /* Endüstriyel Güven Amberi */
  --accent-amber-hover: #d97706;
  --text-main: #0f172a;
  --text-muted: #64748b;         /* Slate 500 */
  --bg-light: #f8fafc;          /* Slate 50 */
  --bg-card: #ffffff;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container-max: 1200px;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------------- HEADER & NAV ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-dark);
  color: #ffffff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-logo span {
  color: var(--accent-amber);
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: 600;
  background-color: var(--surface-dark);
  color: #94a3b8;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border-dark);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  font-size: 0.95rem;
  font-weight: 500;
  color: #cbd5e1;
}

.nav-links a:hover,
.nav-links a.active {
  color: #ffffff;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background-color: var(--accent-amber);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-amber-hover);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: #ffffff;
  border: 1px solid var(--border-dark);
}

.btn-outline:hover {
  background-color: var(--surface-dark);
  border-color: #64748b;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---------------- HERO SECTION ---------------- */
.hero {
  background-color: var(--primary-dark);
  color: #ffffff;
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero h1 span {
  color: var(--accent-amber);
}

.hero p {
  font-size: 1.15rem;
  color: #94a3b8;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------------- STATS / TRUST BAR ---------------- */
.trust-bar {
  background-color: var(--bg-card);
  border-bottom: 1px solid #e2e8f0;
  padding: 2.5rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 0.25rem;
}

.stat-item p {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* ---------------- SECTIONS & CARDS ---------------- */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 0.75rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px -10px rgba(15, 23, 42, 0.08);
  border-color: #cbd5e1;
}

.card-icon {
  width: 52px;
  height: 52px;
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-amber);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* ---------------- PARTNERSHIP BANNER ---------------- */
.partner-box {
  background-color: var(--surface-dark);
  border: 1px solid var(--border-dark);
  border-radius: 16px;
  padding: 3rem;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.partner-item {
  background-color: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-dark);
  padding: 1.5rem;
  border-radius: 10px;
}

.partner-item h4 {
  font-size: 1.1rem;
  color: var(--accent-amber);
  margin-bottom: 0.5rem;
}

.partner-item p {
  font-size: 0.9rem;
  color: #94a3b8;
}

/* ---------------- FOOTER ---------------- */
.site-footer {
  background-color: #090d16;
  color: #64748b;
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border-dark);
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h2 {
  color: #ffffff;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a:hover {
  color: #ffffff;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(51, 65, 85, 0.5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
}

.trademark-notice {
  color: #94a3b8;
}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.1rem;
  }
  .nav-links, .nav-cta .btn {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--primary-dark);
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-dark);
    gap: 1.25rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}