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

:root {
  --primary: #4ECDC4;
  --primary-dark: #2BA8A0;
  --primary-light: #7EDDD7;
  --accent: #455A64;
  --bg: #0B1215;
  --bg-card: #131D21;
  --bg-glass: rgba(78, 205, 196, 0.08);
  --border: rgba(78, 205, 196, 0.18);
  --text: #F0FAFA;
  --text-muted: #7A9EA0;
  --success: #4FFFB0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 40px;
  --shadow: 0 8px 40px rgba(78, 205, 196, 0.18);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Typography ──────────────────────────────────────────────────── */
h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; }
p  { color: var(--text-muted); }

a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--text); }

/* ── Layout ─────────────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Gradient Text ──────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-light) 0%, #4ECDC4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── NAV ────────────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13, 13, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
}

.nav-logo .logo-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}

.nav-logo .logo-icon img {
  width: 100%; height: 100%;
  object-fit: cover;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

/* ── HERO ───────────────────────────────────────────────────────── */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 700px; height: 700px;
  background: radial-gradient(ellipse, rgba(108,99,255,0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 28px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 { margin-bottom: 24px; }

.hero p.subtitle {
  font-size: 1.15rem;
  max-width: 560px;
  margin: 0 auto 48px;
  color: var(--text-muted);
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,99,255,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,99,255,0.5);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  background: var(--bg-glass);
  border-color: var(--primary);
  color: var(--text);
  transform: translateY(-2px);
}

/* ── Cards / Glass ──────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(108,99,255,0.4);
}

/* ── Features ───────────────────────────────────────────────────── */
.features {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header p {
  margin-top: 12px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.card h3 { margin-bottom: 10px; }

/* ── Footer ─────────────────────────────────────────────────────── */
footer {
  background: rgba(13,13,26,0.9);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.footer-brand p {
  margin-top: 10px;
  font-size: 0.88rem;
  max-width: 240px;
}

.footer-links h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--primary-light); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ── Page header (inner pages) ──────────────────────────────────── */
.page-header {
  padding: 140px 0 64px;
  text-align: center;
  position: relative;
}
.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(108,99,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.page-header p {
  margin-top: 12px;
  font-size: 1.05rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Content Section ────────────────────────────────────────────── */
.content-section {
  padding: 64px 0 80px;
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-card);
}

.content-card h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-card h2 .section-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-block;
  flex-shrink: 0;
}

.content-card p {
  margin-bottom: 16px;
  font-size: 0.97rem;
  line-height: 1.75;
}

.content-card ul, .content-card ol {
  color: var(--text-muted);
  padding-left: 24px;
  margin-bottom: 16px;
}
.content-card li { margin-bottom: 8px; font-size: 0.97rem; line-height: 1.7; }

.content-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.content-block:last-child { border-bottom: none; padding-bottom: 0; }

.highlight-box {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 16px 0;
  font-size: 0.92rem;
  color: var(--primary-light);
}

/* ── Contact ────────────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 700px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-method:last-child { margin-bottom: 0; }

.contact-method-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-method-text h4 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.contact-method-text p {
  font-size: 0.88rem;
  margin: 0;
}

.contact-form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.15);
}

.form-group select option { background: var(--bg-card); }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

.btn-full { width: 100%; justify-content: center; }

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
}
.form-success .success-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}
.form-success h3 { color: var(--success); margin-bottom: 8px; }
.form-success p { margin: 0; }

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

.fade-in {
  animation: fadeInUp 0.6s ease both;
}
.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 120px 0 72px; }
  .content-card { padding: 28px; }
  .contact-info-card, .contact-form-card { padding: 28px; }
  .footer-inner { flex-direction: column; }
}