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

html {
  scroll-behavior: smooth;
}

:root {
  --gradient-start: #ff1b6b;
  --gradient-middle: #b721ff;
  --gradient-end: #45caff;
  --dark-bg: #0d0d0d;
  --dark-surface: #1a1a1a;
  --text-primary: #f5f5f5;
  --text-secondary: #a0a0a0;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-gradient: 0 8px 24px rgba(255, 27, 107, 0.2);
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Accessibility: Skip Navigation Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--gradient-start);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 0 0 8px 0;
  z-index: 100;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--gradient-middle);
}

/* Accessibility: Focus Indicators */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--gradient-start);
  outline-offset: 2px;
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.navbar {
  background: rgba(26, 26, 26, 0.95);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

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

.nav-brand .logo {
  height: 40px;
  width: auto;
  display: block;
  transition: transform var(--transition-normal);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.nav-brand .logo:hover {
  transform: scale(1.05);
}

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

.nav-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-normal);
  font-weight: 500;
  position: relative;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle)
  );
  transition: width var(--transition-normal);
}

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

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

.btn-primary {
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  color: white !important;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-gradient);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 27, 107, 0.3);
}

.btn-primary::after {
  display: none;
}

/* Hero Section */
.hero {
  padding: 120px 0;
  background: linear-gradient(
    135deg,
    var(--dark-bg) 0%,
    var(--dark-surface) 100%
  );
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

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

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: var(--dark-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-download::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left var(--transition-slow);
}

.btn-download:hover::before {
  left: 100%;
}

.btn-download:hover {
  border-color: var(--gradient-start);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gradient);
}

.phone-mockup {
  position: relative;
  width: 100%;
  height: 500px;
  border-radius: 32px;
  overflow: hidden;
}

.gradient-bg {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  animation: gradient-shift 8s ease infinite;
}

@keyframes gradient-shift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Features Section */
.features {
  padding: 100px 0;
  background: var(--dark-surface);
}

.section-title {
  font-size: 42px;
  text-align: center;
  margin-bottom: 64px;
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--dark-bg);
  padding: 40px 32px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--gradient-start);
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(255, 27, 107, 0.2);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

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

/* About Section */
.about {
  padding: 100px 0;
  background: var(--dark-bg);
}

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

.about-content p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.8;
}

/* Download Section */
.download {
  padding: 100px 0;
  background: var(--dark-surface);
  text-align: center;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.btn-download.large {
  padding: 20px 40px;
  font-size: 16px;
}

.btn-download.large svg {
  width: 32px;
  height: 32px;
}

.btn-download.large div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.btn-download.large small {
  font-size: 12px;
  font-weight: 400;
  opacity: 0.7;
}

.btn-download.large strong {
  font-size: 18px;
}

/* Footer */
.footer {
  background: var(--dark-bg);
  padding: 80px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand h3 {
  font-size: 24px;
  margin-bottom: 12px;
  background: linear-gradient(
    90deg,
    var(--gradient-start),
    var(--gradient-middle),
    var(--gradient-end)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-brand p {
  color: var(--text-secondary);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-column h4 {
  margin-bottom: 16px;
  font-size: 16px;
}

.footer-column a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.3s;
}

.footer-column a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Animations */
@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

/* Mobile Navigation Toggle */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 28px;
  cursor: pointer;
  padding: 8px;
}

/* Responsive */
@media (max-width: 968px) {
  .container {
    padding: 0 20px;
  }

  .navbar .container {
    flex-wrap: wrap;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding-top: 16px;
  }

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

  .nav-menu a {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
  }

  .hero {
    padding: 60px 0;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-image {
    display: none;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .feature-card {
    padding: 24px;
  }

  .section-title {
    font-size: 32px;
  }

  .section-subtitle {
    font-size: 16px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .download-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-download.large {
    justify-content: center;
  }

  /* FAQ specific */
  .faq-search {
    font-size: 14px;
    padding: 12px 16px;
  }

  .faq-question {
    font-size: 14px;
    padding: 16px 18px;
  }

  .faq-category h3 {
    font-size: 20px;
  }

  /* Contact form specific */
  .contact-form {
    padding: 0;
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: 16px; /* Prevents iOS zoom on focus */
  }

  /* Terms/Legal pages specific */
  .legal-content {
    padding: 0 4px;
  }

  .legal-section h2 {
    font-size: 24px;
  }

  .legal-section h3 {
    font-size: 18px;
  }

  .legal-section p,
  .legal-section li {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .btn-primary,
  .btn-download {
    padding: 12px 20px;
    font-size: 14px;
  }

  .section-title {
    font-size: 28px;
  }

  .feature-icon {
    font-size: 36px;
  }

  .nav-brand .logo {
    height: 32px;
  }

  .faq-category h3 {
    font-size: 18px;
  }

  .legal-section h2 {
    font-size: 22px;
  }
}