/* ==========================================================================
   Snake Brasil Jiu-Jitsu - Design System & Modern Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Tokens */
  --bg-primary: #0A0C10;
  --bg-secondary: #12151C;
  --bg-card: #181C26;
  --bg-card-hover: #202636;
  
  --primary-gold: #F5B800;
  --primary-gold-hover: #D9A200;
  --primary-gold-glow: rgba(245, 184, 0, 0.25);
  
  --accent-green: #25D366;
  --accent-green-hover: #1EBE57;
  --accent-red: #EF4444;
  
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-active: rgba(245, 184, 0, 0.5);

  --glass-bg: rgba(18, 21, 28, 0.85);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-main: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 10px 25px -5px rgba(245, 184, 0, 0.3);
}

/* Reset & Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
}

body {
  overflow-x: hidden;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Section Common */
section {
  padding: 100px 0;
  position: relative;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 184, 0, 0.1);
  color: var(--primary-gold);
  border: 1px solid rgba(245, 184, 0, 0.25);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  line-height: 1.2;
}

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

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 650px;
  margin-bottom: 48px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
}

.btn-primary {
  background: var(--primary-gold);
  color: #000;
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  background: var(--primary-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(245, 184, 0, 0.4);
}

.btn-whatsapp {
  background: var(--accent-green);
  color: #FFF;
  box-shadow: 0 10px 25px -5px rgba(37, 211, 102, 0.4);
}

.btn-whatsapp:hover {
  background: var(--accent-green-hover);
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(37, 211, 102, 0.5);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--primary-gold);
  color: var(--primary-gold);
  background: rgba(245, 184, 0, 0.05);
}

/* ==========================================================================
   Header & Navbar
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-normal);
  padding: 12px 0;
}

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

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-wrapper img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.logo-text span {
  color: var(--primary-gold);
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

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

.nav-links a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-gold);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-gold);
  transition: var(--transition-fast);
  border-radius: 2px;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.8rem;
  cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  min-height: 100vh;
  padding-top: 130px;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at 70% 30%, rgba(245, 184, 0, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(18, 21, 28, 1) 0%, var(--bg-primary) 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  color: var(--primary-gold);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-title span.highlight {
  background: linear-gradient(135deg, #FFF 30%, var(--primary-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.stat-item h3 {
  font-size: 2rem;
  color: var(--primary-gold);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-main);
}

.hero-image-card img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-card:hover img {
  transform: scale(1.03);
}

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  background: linear-gradient(to top, rgba(10, 12, 16, 0.95), transparent);
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-image-tag {
  background: var(--primary-gold);
  color: #000;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
  background-color: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
}

.feature-card {
  background: var(--bg-card);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(245, 184, 0, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-gold);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.about-img-box {
  position: relative;
}

.about-img-box img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-main);
}

.experience-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--primary-gold);
  color: #000;
  padding: 24px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-gold);
  text-align: center;
}

.experience-badge h2 {
  font-size: 2.8rem;
  line-height: 1;
}

.experience-badge p {
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  border: 1px solid var(--border-color);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 12, 16, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay h4 {
  font-size: 1.1rem;
  color: var(--primary-gold);
}

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

/* Modal Lightbox */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal.active {
  display: flex;
}

.modal-content {
  max-width: 900px;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-color);
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  color: #FFF;
  font-size: 2rem;
  cursor: pointer;
  z-index: 10;
}

/* ==========================================================================
   Schedule Section (Quadro de Horários)
   ========================================================================== */
.schedule {
  background-color: var(--bg-secondary);
}

.schedule-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 40px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.tab-btn {
  padding: 12px 24px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.tab-btn:hover,
.tab-btn.active {
  background: var(--primary-gold);
  color: #000;
  border-color: var(--primary-gold);
}

.schedule-table-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-main);
}

.schedule-row {
  display: grid;
  grid-template-columns: 140px 220px 1fr 160px;
  align-items: center;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-fast);
}

.schedule-row:last-child {
  border-bottom: none;
}

.schedule-row:hover {
  background: var(--bg-card-hover);
}

.time-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245, 184, 0, 0.12);
  color: var(--primary-gold);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
}

.class-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.class-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.class-level {
  text-align: right;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   Location Section
   ========================================================================== */
.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.info-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border-color);
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 28px;
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-icon {
  width: 52px;
  height: 52px;
  background: rgba(245, 184, 0, 0.1);
  border: 1px solid rgba(245, 184, 0, 0.3);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-gold);
  font-size: 1.4rem;
  flex-shrink: 0;
}

.info-text h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

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

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 100%;
  min-height: 420px;
  box-shadow: var(--shadow-main);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, #1C1F2B 0%, #0A0C10 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  width: 300px;
  height: 300px;
  background: var(--primary-gold-glow);
  filter: blur(80px);
  border-radius: 50%;
  transform: translateX(-50%);
}

.cta-banner h2 {
  font-size: 2.4rem;
  margin-bottom: 16px;
  position: relative;
}

.cta-banner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 32px auto;
  position: relative;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  background: var(--accent-green);
  color: #FFF;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.5);
  transition: var(--transition-normal);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background: var(--accent-green-hover);
}

/* Footer */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ==========================================================================
   Media Queries (Responsive)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid,
  .about-grid,
  .location-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .hero-title {
    font-size: 2.8rem;
  }

  .schedule-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .class-level {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

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