:root {
  --bg-dark: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.35);
  --gold: #f59e0b;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --border: #1e293b;
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Outfit', system-ui, sans-serif;
  --hero-bg-image: url('https://images.unsplash.com/photo-1574375927938-d5a98e8ffe85?w=1920&q=80&auto=format&fit=crop');
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7rem 1.5rem 4rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: var(--hero-bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.4;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, var(--accent-glow) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(59, 130, 246, 0.2) 0%, transparent 50%),
    linear-gradient(to bottom, rgba(10, 14, 23, 0.75) 0%, rgba(10, 14, 23, 0.5) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 720px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

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

.hero-tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-badges span {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-plan {
  width: 100%;
  background: var(--accent);
  color: white;
  margin-top: auto;
  padding: 1rem;
}

.btn-plan:hover {
  background: var(--accent-hover);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-whatsapp {
  background: #25d366;
  color: white;
}

.btn-whatsapp:hover {
  background: #20bd5a;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
}

/* Sections common */
.intro,
.plans,
.devices,
.why,
.categories,
.testimonials {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.section-label,
.intro-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title,
.intro h2,
.devices h2,
.why h2,
.testimonials h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-title span,
.plans .section-title span {
  color: var(--gold);
}

.intro-sub,
.devices-sub {
  color: var(--text-muted);
  margin: 0 0 2rem;
}

/* Plans */
.plans .section-title {
  margin-bottom: 2.5rem;
}

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

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}

.plan-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.plan-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 12px 40px var(--accent-glow);
  position: relative;
}

.plan-card .badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--bg-dark);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

.plan-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.plan-price {
  margin-bottom: 1.25rem;
}

.plan-price .old {
  font-size: 0.95rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-right: 0.5rem;
}

.plan-price .current {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.plan-price .currency {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

.plan-features {
  flex: 1;
  margin-bottom: 1rem;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.plan-delivery {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

/* Devices */
.devices {
  text-align: center;
}

.devices-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.device-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600;
}

.device-item .icon {
  font-size: 1.5rem;
}

/* Why */
.why {
  text-align: center;
}

.why-text {
  max-width: 640px;
  margin: 0 auto 1.5rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Categories */
.categories .section-title {
  text-align: center;
  margin-bottom: 2rem;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: border-color 0.2s;
}

.cat-card:hover {
  border-color: var(--accent);
}

.cat-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cat-card h3 {
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
}

.cat-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1.25rem;
}

/* Testimonials */
.testimonials {
  text-align: center;
}

.testimonials .section-label {
  display: block;
  margin-bottom: 0.5rem;
}

.testimonials h2 {
  margin-bottom: 2rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.testimonial {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 0;
  text-align: left;
}

.testimonial p {
  margin: 0 0 0.75rem;
  font-style: italic;
  color: var(--text-muted);
}

.testimonial cite {
  font-size: 0.9rem;
  color: var(--accent);
  font-style: normal;
}

/* Footer */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 3rem 1.5rem;
  text-align: center;
}

.footer-inner {
  max-width: 600px;
  margin: 0 auto;
}

.footer .logo {
  display: inline-block;
  margin-bottom: 0.5rem;
}

.footer p {
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
}

/* Mobile */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links li {
    border-bottom: 1px solid var(--border);
  }

  .nav-links a {
    display: block;
    padding: 1rem;
  }

  .plans-grid {
    grid-template-columns: 1fr;
  }

  .plan-card.featured {
    order: -1;
  }
}