/* ===== CSS Variables / Theming ===== */
:root {
  --primary: #6c3ce6;
  --primary-dark: #5228c4;
  --primary-light: #8b5cf6;
  --secondary: #3b82f6;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --success: #10b981;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f0a1e;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --card-bg: #ffffff;
  --card-shadow: 0 4px 24px rgba(108, 60, 230, 0.08);
  --card-shadow-hover: 0 8px 40px rgba(108, 60, 230, 0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --gradient-hero: linear-gradient(135deg, #1a0533 0%, #2d1b69 40%, #4c1d95 100%);
  --gradient-cta: linear-gradient(135deg, #6c3ce6 0%, #3b82f6 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-dark);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
  color: var(--text-muted);
  line-height: 1.7;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: box-shadow 0.3s;
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
}

.nav-brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

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

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--gradient-cta);
  color: #fff !important;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(108, 60, 230, 0.3);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(108, 60, 230, 0.4);
  color: #fff !important;
}

.nav-cta svg {
  width: 18px;
  height: 18px;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border: none;
  background: none;
}

.hamburger span {
  width: 24px;
  height: 2.5px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  z-index: 999;
}

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

.mobile-menu a {
  display: block;
  padding: 14px 0;
  color: var(--text);
  font-weight: 500;
  font-size: 1.05rem;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  background: var(--gradient-hero);
  padding: 140px 0 100px;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(108, 60, 230, 0.3) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.2) 0%, transparent 50%);
  pointer-events: none;
}

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

.hero-text {
  color: #fff;
}

.hero-text h1 {
  color: #fff;
  margin-bottom: 20px;
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  letter-spacing: -0.02em;
}

.hero-text h1 span {
  background: linear-gradient(135deg, #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.15rem;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-badges {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.82rem;
  font-weight: 500;
}

.hero-badge svg {
  width: 14px;
  height: 14px;
}

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

.btn-play-store {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: #fff;
  color: var(--text);
  border-radius: 14px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-play-store:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  color: var(--text);
}

.btn-play-store svg {
  width: 28px;
  height: 28px;
}

.btn-play-store .btn-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.btn-play-store .btn-text small {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
}

.hero-mockup {
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-mockup img {
  max-width: 340px;
  width: 100%;
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

/* ===== Social Proof Ticker ===== */
.social-proof {
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  overflow: hidden;
}

.ticker-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
}

.ticker-item svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.ticker-item strong {
  color: var(--text);
}

/* ===== Section Base ===== */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--bg-alt);
}

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

.section-header p {
  max-width: 600px;
  margin: 12px auto 0;
  font-size: 1.05rem;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(108, 60, 230, 0.08);
  color: var(--primary);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

/* ===== Screenshots Gallery ===== */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.screenshot-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

.screenshot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.screenshot-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 9/16;
  object-fit: cover;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 60, 230, 0.08);
  border-radius: 14px;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  color: var(--primary);
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.feature-card p {
  font-size: 0.92rem;
}

/* ===== How It Works ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: var(--border);
}

.step-card {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-cta);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  border-radius: 50%;
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}

.step-card h3 {
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.9rem;
  max-width: 260px;
  margin: 0 auto;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.faq-item:hover {
  box-shadow: var(--card-shadow);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.faq-question svg {
  width: 20px;
  height: 20px;
  color: var(--text-light);
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta-section {
  background: var(--gradient-hero);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(108, 60, 230, 0.3) 0%, transparent 70%);
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  padding: 60px 0 30px;
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.footer-brand span {
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer h4 {
  color: #fff;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Scroll Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-text p {
    margin-left: auto;
    margin-right: auto;
  }

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

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

  .hero-mockup img {
    max-width: 280px;
  }

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

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

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .section {
    padding: 60px 0;
  }

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

  .steps-grid::before {
    display: none;
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .screenshots-grid {
    grid-template-columns: 1fr;
    max-width: 300px;
    margin: 0 auto;
  }

  .hero-mockup img {
    max-width: 240px;
  }
}