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

:root {
  --blue:        #3699FF;
  --blue-dark:   #1565C0;
  --dark:        #1E1E2D;
  --dark-card:   #252636;
  --dark-border: #2D2D3F;
  --text:        #E2E8F0;
  --text-muted:  #94A3B8;
  --white:       #FFFFFF;
  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,0.35);
  --transition:  0.2s ease;
  --font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

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

a { text-decoration: none; color: inherit; }

img, svg { display: block; }

/* ─── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn--primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border-color: var(--dark-border);
}
.btn--outline:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.btn--ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: transparent;
}
.btn--ghost:hover { color: var(--white); }

.btn--lg { padding: 14px 30px; font-size: 1rem; }

/* ─── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(30, 30, 45, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--dark-border);
  transition: background var(--transition);
}

.navbar__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.navbar__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}

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

.navbar__actions {
  display: flex;
  gap: 10px;
  margin-left: 24px;
  flex-shrink: 0;
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
}
.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ─── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 148px 0 100px;
  overflow: hidden;
  text-align: center;
}

.hero__bg-blob {
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle at center, rgba(54,153,255,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(54,153,255,0.12);
  border: 1px solid rgba(54,153,255,0.3);
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero__title .highlight { color: var(--blue); }

.hero__subtitle {
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero__cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.stat strong { font-size: 1.5rem; font-weight: 700; color: var(--white); }
.stat span { font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; }

/* ─── Section Headers ───────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(54,153,255,0.1);
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto;
}

/* ─── Features ──────────────────────────────────────────────── */
.features {
  padding: 100px 0;
  background: rgba(0,0,0,0.15);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
  border-color: rgba(54,153,255,0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-card__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(54,153,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--blue);
}

.feature-card__icon svg {
  width: 22px; height: 22px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ─── How It Works ──────────────────────────────────────────── */
.how-it-works {
  padding: 100px 0;
}

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 8px;
}

.step {
  flex: 1;
  min-width: 200px;
  text-align: center;
  padding: 0 16px;
}

.step__number {
  font-size: 2.8rem;
  font-weight: 800;
  color: rgba(54,153,255,0.18);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.step h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.step p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step__connector {
  flex-shrink: 0;
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), rgba(54,153,255,0.2));
  margin-top: 40px;
  border-radius: 2px;
}

/* ─── CTA Banner ────────────────────────────────────────────── */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, rgba(54,153,255,0.12) 0%, rgba(21,101,192,0.08) 100%);
  border-top: 1px solid var(--dark-border);
  border-bottom: 1px solid var(--dark-border);
}

.cta__inner {
  text-align: center;
}

.cta h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.cta p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

/* ─── Contact ───────────────────────────────────────────────── */
.contact {
  padding: 100px 0;
  background: rgba(0,0,0,0.15);
}

.contact__form {
  max-width: 640px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.87rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--dark-card);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: #4B5563; }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
}

.form-success {
  display: none;
  margin-top: 16px;
  color: #34D399;
  font-size: 0.9rem;
  text-align: center;
}
.form-success.visible { display: block; }

/* ─── Footer ────────────────────────────────────────────────── */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--dark-border);
}

.footer__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: space-between;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__nav {
  display: flex;
  gap: 24px;
}
.footer__nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--white); }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .navbar__links { display: none; }
  .navbar__actions { display: none; }
  .navbar__hamburger { display: flex; }

  .navbar__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--dark);
    border-bottom: 1px solid var(--dark-border);
    padding: 24px;
    gap: 20px;
  }
  .navbar__links.open + .navbar__actions {
    display: flex;
    position: fixed;
    top: 200px; left: 0; right: 0;
    padding: 0 24px 24px;
    background: var(--dark);
    flex-direction: column;
    gap: 12px;
  }

  .hero { padding: 120px 0 72px; }

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

  .steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .step__connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--blue), rgba(54,153,255,0.2));
    margin: 0;
  }
  .step { padding: 20px 0; }

  .footer__inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .features__grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 28px; }
}