/* ============================================================
   LÍNA — Main Stylesheet (shared across all pages)
   ============================================================ */

/* ========== RESET & BASE ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-body: #111115;
  --bg-panel: #1a1a20;
  --bg-card: #22222a;
  --bg-card-hover: #2a2a33;
  --border: #333340;
  --border-light: #444455;
  --accent: #d18b3c;
  --accent-hover: #e09b4c;
  --accent-glow: rgba(209, 139, 60, 0.15);
  --accent-glow-strong: rgba(209, 139, 60, 0.35);
  --text: #e8e8ec;
  --text-secondary: #9999a8;
  --text-muted: #66667a;
  --success: #2ecc71;
  --font-display: 'Staatliches', sans-serif;
  --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ========== NOISE TEXTURE OVERLAY ========== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.025;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* ========== LAYOUT UTILITIES ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 120px 0;
}

/* ========== SECTION HEADINGS ========== */
.section-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.6;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(209, 139, 60, 0.3), 0 1px 3px rgba(209, 139, 60, 0.2);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(209, 139, 60, 0.35), 0 2px 6px rgba(209, 139, 60, 0.25);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

/* ========== NAV ========== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(17, 17, 21, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(17, 17, 21, 0.95);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: bold;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), #b5722e);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  font-family: var(--font-display);
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(209, 139, 60, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #fff !important;
  background: var(--accent);
  padding: 8px 20px;
  border-radius: 6px;
  transition: background 0.2s ease, transform 0.15s ease !important;
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
}

/* ========== FOOTER ========== */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-brand .nav-logo {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 280px;
  line-height: 1.5;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col li a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-col li a:hover {
  color: var(--text);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Scroll-triggered fade in */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== RESPONSIVE — SHARED ========== */
@media (max-width: 960px) {
  .footer-inner {
    flex-direction: column;
    gap: 40px;
  }
}

@media (max-width: 640px) {
  .section { padding: 80px 0; }

  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(17, 17, 21, 0.98);
    backdrop-filter: blur(20px);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .nav-mobile-toggle { display: block; }

  .footer-links { flex-direction: column; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}