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

:root {
  --bg-dark: #0b0f19;
  --bg-darker: #06080d;
  --bg-card: #141c2f;
  --bg-card-hover: #1e293b;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary-blue: #3b82f6;
  --primary-blue-hover: #2563eb;
  --primary-purple: #8b5cf6;
  --primary-green: #10b981;
  --border-color: #1e293b;
  --font-family: 'Inter', sans-serif;
  --radius: 16px;
  --transition: all 0.3s ease;
  --glow-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
  --badge-height: 44px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

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

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 700;
}

.logo img {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 30px;
  align-items: center;
}

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

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
  display: inline-block;
  transition: var(--transition);
}

.btn-primary:hover {
  box-shadow: var(--glow-shadow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: inline-block;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(11,15,25,0) 70%);
  z-index: -1;
  border-radius: 50%;
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.app-screenshot-container {
  margin-top: 80px;
  display: flex;
  justify-content: center;
  position: relative;
  perspective: 1000px;
}

.app-screenshot-main {
  max-width: 320px;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  border: 4px solid var(--border-color);
  z-index: 2;
  transform: translateY(0);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

/* Features Overview */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 30px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-purple);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: var(--primary-blue);
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 15px;
}

.feature-card p {
  color: var(--text-muted);
}

/* Testimonials Placeholder */
.testimonials {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.testimonial-card {
  background: var(--bg-card);
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.stars {
  color: #fbbf24;
  margin-bottom: 15px;
}

/* Download Section */
.cta-section {
  text-align: center;
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.store-badge {
  display: inline-block;
  margin-top: 30px;
  transition: var(--transition);
}

.store-badge img {
  height: var(--badge-height);
  width: auto;
}

.store-badge.play-store img {
  height: calc(var(--badge-height) + 16px);
  margin-top: -8px;
}

.store-badge:hover {
  transform: scale(1.05);
}

/* Inner Pages Header */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  background: var(--bg-darker);
  border-bottom: 1px solid var(--border-color);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0;
  color: var(--text-muted);
}

.article-content h2, .article-content h3 {
  color: var(--text-main);
  margin-top: 40px;
  margin-bottom: 15px;
}

.article-content p {
  margin-bottom: 20px;
}

.article-content ul {
  list-style: disc;
  padding-left: 20px;
  margin-bottom: 20px;
}

/* Accordion */
.accordion {
  margin-top: 30px;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.accordion-header {
  padding: 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  background: var(--bg-card);
  transition: var(--transition);
}

.accordion-header:hover {
  background: var(--bg-card-hover);
}

.accordion-content {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--text-muted);
}

.accordion-item.active .accordion-content {
  padding: 20px;
  max-height: 500px;
}

.accordion-item.active .accordion-header i {
  transform: rotate(180deg);
}

.accordion-header i {
  transition: transform 0.3s ease;
}

/* Footer */
footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-muted);
}

.footer-col ul li a:hover {
  color: var(--primary-blue);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-card);
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    border-bottom: 1px solid var(--border-color);
    clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    transition: clip-path 0.3s ease-in-out;
  }
  
  .nav-links.active {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
  }
}