/* ===== CSS Variables ===== */
:root {
  --bg-primary: #0D0D0D;
  --bg-secondary: #1A1A1A;
  --bg-card: #141414;
  --gradient-start: #FFCB23;
  --gradient-mid: #FF7B2E;
  --gradient-end: #FF3A3A;
  --text-primary: #FFFFFF;
  --text-secondary: #A0A0A0;
  --text-muted: #666666;
  --border-color: #2A2A2A;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

ul {
  list-style: none;
}

/* ===== Utilities ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.gradient-bg {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-mid), var(--gradient-end));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--bg-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 203, 35, 0.3);
}

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

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

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.nav a:hover {
  color: var(--gradient-start);
}

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

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 203, 35, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 58, 58, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}

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

.hero-screenshots {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  perspective: 1000px;
}

.hero-screenshots img {
  width: 220px;
  border-radius: 32px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.hero-screenshots img:nth-child(1) {
  transform: rotateY(15deg) translateZ(-50px);
}

.hero-screenshots img:nth-child(2) {
  transform: scale(1.1);
  z-index: 2;
}

.hero-screenshots img:nth-child(3) {
  transform: rotateY(-15deg) translateZ(-50px);
}

/* ===== Features Section ===== */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--gradient-start);
  box-shadow: 0 20px 40px rgba(255, 203, 35, 0.1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 203, 35, 0.2), rgba(255, 58, 58, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ===== Screenshots Section ===== */
.screenshots {
  padding: 100px 0;
}

.screenshots-carousel {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 20px 0;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshots-carousel::-webkit-scrollbar {
  display: none;
}

.screenshots-carousel img {
  flex-shrink: 0;
  width: 280px;
  border-radius: 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  scroll-snap-align: center;
  transition: var(--transition);
}

.screenshots-carousel img:hover {
  transform: scale(1.02);
}

/* ===== CTA Section ===== */
.cta {
  padding: 100px 0;
  background: var(--bg-secondary);
  text-align: center;
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 16px;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  color: var(--text-muted);
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Legal Pages ===== */
.legal-page {
  padding: 120px 0 80px;
  min-height: 100vh;
}

.legal-page h1 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 8px;
}

.legal-page .last-updated {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 40px;
}

.legal-content {
  max-width: 800px;
}

.legal-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 40px 0 16px;
  color: var(--gradient-start);
}

.legal-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px;
}

.legal-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.legal-content ul {
  margin: 16px 0;
  padding-left: 24px;
  list-style: disc;
}

.legal-content ul li {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ===== Contact Page ===== */
.contact-page {
  padding: 120px 0 80px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 40px;
}

.contact-info h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 203, 35, 0.2), rgba(255, 58, 58, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item-content p {
  color: var(--text-secondary);
  font-size: 14px;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gradient-start);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== About Page ===== */
.about-page {
  padding: 120px 0 80px;
}

.about-hero {
  text-align: center;
  margin-bottom: 80px;
}

.about-hero h1 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 24px;
}

.about-hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

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

.about-text h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 24px;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.stat-card .number {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 8px;
}

.stat-card .label {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content p {
    margin: 0 auto 32px;
  }

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

  .hero-screenshots {
    margin-top: 40px;
  }

  .hero-screenshots img {
    width: 180px;
  }

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

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

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

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

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-content h1 {
    font-size: 36px;
  }

  .section-header h2 {
    font-size: 28px;
  }

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

  .hero-screenshots img:nth-child(1),
  .hero-screenshots img:nth-child(3) {
    display: none;
  }

  .hero-screenshots img:nth-child(2) {
    transform: none;
    width: 260px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

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

/* ===== Mobile Navigation ===== */
.mobile-nav {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 20px;
  display: none;
  flex-direction: column;
  gap: 16px;
  z-index: 999;
}

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

.mobile-nav a {
  color: var(--text-secondary);
  font-size: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.mobile-nav a:hover {
  color: var(--gradient-start);
}