/* =============================================
   ELEVAIR — Landing Page Styles
   Vibe: Dark aviation/industrial. Professional, not cold.
   Fonts: Syne (display) + Satoshi (body)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Satoshi:wght@300;400;500;600&display=swap');

/* ── Variables ─────────────────────────────── */
:root {
  --bg-base: #070c14;
  --bg-card: #0c1525;
  --bg-card-hover: #101c30;
  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(245, 158, 11, 0.3);
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --accent-glow: rgba(245, 158, 11, 0.25);
  --text-primary: #f0f4ff;
  --text-secondary: #7a8fb0;
  --text-muted: #4a5a72;
  --success: #10b981;
  --error: #ef4444;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Satoshi', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Typography ────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p { color: var(--text-secondary); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Container ──────────────────────────────── */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Navigation ─────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(7, 12, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo-icon {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #070c14;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text-primary); text-decoration: none; }

.nav-cta {
  background: var(--accent);
  color: #070c14 !important;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  transition: background 0.2s, transform 0.15s !important;
}
.nav-cta:hover { background: #fbbf24; transform: translateY(-1px); text-decoration: none; }

/* ── Hero ──────────────────────────────────── */
.hero {
  padding: 9rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse at center, rgba(245,158,11,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 1.75rem;
}

.eyebrow-dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero h1 { margin-bottom: 1.5rem; }
.hero h1 span { color: var(--accent); }

.hero-sub {
  font-size: 1.15rem;
  max-width: 580px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

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

.btn-primary {
  background: var(--accent);
  color: #070c14;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-primary:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--text-secondary); color: var(--text-primary); text-decoration: none; }

/* ── Hero graphic (CSS-based) ─────────────── */
.hero-graphic {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  width: 520px;
  height: 400px;
  pointer-events: none;
}

.hero-grid-line {
  position: absolute;
  background: rgba(255,255,255,0.04);
}
.hero-grid-line.h1 { width: 100%; height: 1px; top: 25%; }
.hero-grid-line.h2 { width: 100%; height: 1px; top: 50%; }
.hero-grid-line.h3 { width: 100%; height: 1px; top: 75%; }
.hero-grid-line.v1 { width: 1px; height: 100%; left: 20%; }
.hero-grid-line.v2 { width: 1px; height: 100%; left: 50%; }
.hero-grid-line.v3 { width: 1px; height: 100%; left: 80%; }

.hero-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-card.c1 { top: 15%; right: 10%; width: 200px; }
.hero-card.c2 { bottom: 20%; right: 30%; width: 240px; }
.hero-card.c3 { top: 40%; left: 5%; width: 160px; }

.card-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}
.card-value {
  font-family: 'Syne', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
}
.card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.card-value.green { color: var(--success); }

/* ── Social proof bar ─────────────────────── */
.social-proof {
  margin-top: 5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proof-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.25rem;
}

.proof-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-number {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}
.stat-number span { color: var(--accent); }

.stat-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* ── Problem section ─────────────────────── */
.problem-section {
  padding: 6rem 0;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-title {
  max-width: 600px;
  margin-bottom: 3.5rem;
}
.section-title p { margin-top: 1rem; font-size: 1.1rem; }

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.problem-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.problem-icon {
  width: 44px; height: 44px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--accent);
  font-size: 1.2rem;
}

.problem-card h3 { margin-bottom: 0.75rem; font-size: 1.1rem; }
.problem-card p { font-size: 0.9rem; line-height: 1.65; }

/* ── Solution / Features ────────────────── */
.solution-section {
  padding: 6rem 0;
  background: linear-gradient(180deg, var(--bg-base) 0%, rgba(12,21,37,0.5) 50%, var(--bg-base) 100%);
}

.solution-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 4rem;
}
.solution-header p { margin-top: 1rem; font-size: 1.05rem; }

.feature-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.feature-main {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.feature-main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(245,158,11,0.3));
}

.feature-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 100px;
  padding: 0.3rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.feature-main h2 { margin-bottom: 1rem; }
.feature-main > p { font-size: 1.05rem; margin-bottom: 2rem; }

.feature-list { list-style: none; }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.feature-list li::before {
  content: '✓';
  width: 20px; height: 20px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.feature-side-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  flex: 1;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.feature-card-icon {
  width: 40px; height: 40px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 1.1rem;
}

.feature-card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }
.feature-card p { font-size: 0.875rem; }

/* ── Trust / logos ────────────────────────── */
.trust-section {
  padding: 4rem 0;
}

.trust-label {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.trust-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  opacity: 0.4;
}

.trust-logo-item {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

/* ── Contact / CTA form ───────────────────── */
.contact-section {
  padding: 7rem 0 6rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 1rem; }
.contact-info > p { font-size: 1.05rem; margin-bottom: 2.5rem; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-detail-icon {
  width: 40px; height: 40px;
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-detail-text strong {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}
.contact-detail-text span { font-size: 0.875rem; color: var(--text-secondary); }

.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
}

.form-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  color: var(--text-primary);
  font-family: 'Satoshi', sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(245,158,11,0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }

.form-group textarea { resize: vertical; min-height: 100px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-error-msg {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  color: #fca5a5;
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
  display: none;
}

.form-success-msg {
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  color: #6ee7b7;
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
  display: none;
}

.form-legal {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1rem;
  line-height: 1.5;
}

.btn-submit {
  width: 100%;
  background: var(--accent);
  color: #070c14;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 20px var(--accent-glow);
  margin-top: 0.5rem;
}
.btn-submit:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}
.btn-submit:active { transform: translateY(0); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ── Footer ─────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-secondary);
  letter-spacing: -0.02em;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Scroll animations ─────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.6s ease forwards;
}

[data-delay="100"] { animation-delay: 0.1s; }
[data-delay="200"] { animation-delay: 0.2s; }
[data-delay="300"] { animation-delay: 0.3s; }
[data-delay="400"] { animation-delay: 0.4s; }

/* ── Responsive ─────────────────────────────── */
@media (max-width: 900px) {
  .proof-stats { grid-template-columns: repeat(2, 1fr); }
  .problem-grid { grid-template-columns: 1fr; }
  .feature-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .hero-graphic { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}

@media (max-width: 600px) {
  h1 { font-size: 2.25rem; }
  .hero { padding: 7rem 0 3rem; }
  .proof-stats { grid-template-columns: 1fr 1fr; }
}