/* ============================================
   SportivEducat Landing Page
   ============================================ */

:root {
  /* Colors */
  --color-bg: #0f1117;
  --color-surface: #1a1f36;
  --color-surface-light: #242942;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-dark: #4f46e5;
  --color-accent: #22d3ee;
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-border: #2d3354;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --container-max: 1140px;
  --section-py: 5rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

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

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

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

img {
  max-width: 100%;
  display: block;
}

/* ---- Container ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

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

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

.btn-lg {
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
}

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
  background: rgba(15, 17, 23, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--color-text);
}

.nav-actions {
  display: flex;
  gap: 0.75rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ---- Hero ---- */
.hero {
  padding: 10rem 0 var(--section-py);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 500px;
}

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

.hero-placeholder svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto;
}

/* ---- Features ---- */
.features {
  padding: var(--section-py) 0;
}

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

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s;
}
.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---- How It Works ---- */
.how-it-works {
  padding: var(--section-py) 0;
  background: var(--color-surface);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step {
  text-align: center;
  padding: 2rem 1.5rem;
}

.step-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 auto 1.25rem;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---- CTA ---- */
.cta {
  padding: var(--section-py) 0;
}

.cta-inner {
  text-align: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(34, 211, 238, 0.08));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
}

.cta h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.cta p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Contact ---- */
.contact {
  padding: var(--section-py) 0;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
}

.contact-item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-item a {
  color: var(--color-text);
  transition: color 0.2s;
}
.contact-item a:hover {
  color: var(--color-primary);
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
}

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

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--color-text);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  :root {
    --section-py: 3.5rem;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Mobile menu open state */
  .navbar.menu-open .nav-links,
  .navbar.menu-open .nav-actions {
    display: flex;
  }

  .navbar.menu-open .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(15, 17, 23, 0.98);
    backdrop-filter: blur(12px);
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .navbar.menu-open .nav-actions {
    position: absolute;
    top: calc(100% + 140px);
    left: 0;
    right: 0;
    background: rgba(15, 17, 23, 0.98);
    backdrop-filter: blur(12px);
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    margin: 0 auto 2rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

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

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

  .footer-inner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}