/* ========================================
   Sports Clock Manager - Design System
   ======================================== */

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

/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0a0e1a;
  --color-bg-secondary: #141824;
  --color-bg-tertiary: #1e2433;
  --color-bg-card: rgba(30, 36, 51, 0.6);

  /* Accent Colors (matching app) */
  --color-green: #00ff88;
  --color-cyan: #00d4ff;
  --color-orange: #ff6b35;
  --color-purple: #b24bf3;
  --color-blue: #5865f2;

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a8c0;
  --color-text-muted: #6b7280;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow-green: 0 0 20px rgba(0, 255, 136, 0.3);
  --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.3);
  --shadow-glow-purple: 0 0 20px rgba(178, 75, 243, 0.3);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 400ms ease-in-out;
}

/* ========================================
   Base Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-green), var(--color-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-green);
}

/* ========================================
   Layout Components
   ======================================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

/* ========================================
   Navigation Header
   ======================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-green), var(--color-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green), var(--color-cyan));
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--color-green);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--spacing-3xl) 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  opacity: 0.7;
  filter: blur(1px) brightness(1.2);
}

.hero-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 14, 26, 0.9), rgba(20, 24, 36, 0.3));
}

.hero-container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease-out 0.2s backwards;
  line-height: 1.6;
}

.hero-phone {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 1s ease-out 0.4s backwards;
}

.hero-phone img {
  max-width: 1000px;
  width: 200%;
  height: auto;
  filter: drop-shadow(0 20px 60px rgba(0, 255, 136, 0.3));
  animation: float 6s ease-in-out infinite;
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

.download-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.store-badge {
  display: inline-block;
  transition: all var(--transition-base);
  border-radius: 5px;
  overflow: hidden;
}

.store-badge img {
  display: block;
  height: 50px;
  width: auto;
}

.store-badge:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 255, 136, 0.3);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-green), var(--color-cyan));
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-glow-green);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 255, 136, 0.5);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  border: 2px solid var(--color-cyan);
}

.btn-secondary:hover {
  background: var(--color-cyan);
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

/* ========================================
   Cards
   ======================================== */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 255, 136, 0.3);
}

.card-icon {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-3xl);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.card-description {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
}

/* ========================================
   Grid Layouts
   ======================================== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ========================================
   Features Section
   ======================================== */
.features {
  background: linear-gradient(180deg, transparent, rgba(0, 255, 136, 0.05));
}

.feature-list {
  list-style: none;
  margin-top: var(--spacing-xl);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}

.feature-item:hover {
  background: rgba(0, 255, 136, 0.05);
}

.feature-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-green);
  font-size: var(--font-size-xl);
}

.feature-text {
  color: var(--color-text-secondary);
}

/* ========================================
   Sports Grid
   ======================================== */
.sports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.sport-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.sport-card:nth-child(1) {
  border-color: rgba(0, 255, 136, 0.3);
}

.sport-card:nth-child(2) {
  border-color: rgba(255, 107, 53, 0.3);
}

.sport-card:nth-child(3) {
  border-color: rgba(0, 212, 255, 0.3);
}

.sport-card:nth-child(4) {
  border-color: rgba(178, 75, 243, 0.3);
}

.sport-card:nth-child(5) {
  border-color: rgba(88, 101, 242, 0.3);
}

.sport-card:nth-child(6) {
  border-color: rgba(255, 107, 53, 0.3);
}

.sport-card:hover {
  transform: translateY(-8px) scale(1.02);
}

.sport-card:nth-child(1):hover {
  box-shadow: var(--shadow-glow-green);
}

.sport-card:nth-child(3):hover {
  box-shadow: var(--shadow-glow-cyan);
}

.sport-card:nth-child(4):hover {
  box-shadow: var(--shadow-glow-purple);
}

.sport-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sport-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: invert(1);
}

.sport-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-icon {
  height: 32px;
  width: auto;
  border-radius: 6px;
}

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

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.screenshot-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
}

.screenshot-item:hover {
  transform: scale(1.05);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========================================
   Best Experience Setup Section
   ======================================== */
.setup-section {
  background: linear-gradient(180deg, rgba(88, 101, 242, 0.05), transparent);
}

.setup-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.setup-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.setup-card:hover {
  transform: translateY(-8px);
  border-color: rgba(88, 101, 242, 0.5);
  box-shadow: 0 12px 40px rgba(88, 101, 242, 0.2);
}

.setup-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.setup-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.setup-card:hover .setup-image img {
  transform: scale(1.05);
}

.setup-info {
  padding: var(--spacing-xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.setup-info h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.setup-info p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.footer-content {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ========================================
   Content Pages (Privacy, Terms, Company)
   ======================================== */
.content-page {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.content-page h1 {
  margin-bottom: var(--spacing-xl);
}

.content-page h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-green);
  font-size: var(--font-size-2xl);
}

.content-page h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-cyan);
  font-size: var(--font-size-xl);
}

.content-page ul,
.content-page ol {
  margin-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.content-page li {
  margin-bottom: var(--spacing-sm);
}

/* ========================================
   Animations
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 968px) {
  .hero {
    min-height: auto;
    padding: var(--spacing-3xl) 0;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .hero-phone {
    order: -1;
  }

  .hero-phone img {
    max-width: 350px;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .download-buttons {
    justify-content: center;
  }

  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.98);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

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

  .menu-toggle {
    display: block;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

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

  h1 {
    font-size: var(--font-size-3xl);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-3xl: 3rem;
    --spacing-2xl: 2rem;
  }

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

  .btn {
    width: 100%;
  }
}

/* ========================================
   Utility Classes
   ======================================== */
.text-center {
  text-align: center;
}

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

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}