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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --accent: #7c3aed;
  --accent-glow: rgba(124, 58, 237, 0.4);
  --accent-light: #a78bfa;
  --text-primary: #f0f0f5;
  --text-secondary: #9393a8;
  --text-muted: #5e5e72;
  --border: #1e1e2e;
  --success: #22c55e;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

ul, ol {
  list-style: none;
}

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

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.navbar-brand .brand-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  color: #fff;
}

.navbar-brand .brand-icon-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: contain;
}

.navbar-brand span {
  background: linear-gradient(135deg, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-cta {
  padding: 0.55rem 1.4rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all var(--transition);
  -webkit-text-fill-color: #fff !important;
}

.nav-cta:hover {
  background: #6d28d9;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* Burger Menu */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
  background: none;
  border: none;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

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

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

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

/* ========== MOBILE NAV ========== */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

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

.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.mobile-nav .nav-cta {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

/* ========== HERO ========== */
.hero {
  position: relative;
  padding: 10rem 2rem 6rem;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.4;
}

.hero .container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(124, 58, 237, 0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  width: fit-content;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent-light), #c084fc, #e879f9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-free-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  background: #6d28d9;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 1rem;
}

.hero-stat .stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Hero Image */
.hero-image {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 80px var(--accent-glow);
  background: none;
  width: 100%;
  line-height: 0;
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius) - 1px);
}

.hero-image-placeholder {
  width: 100%;
  aspect-ratio: 16/10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.hero-image-placeholder .placeholder-icon {
  font-size: 3rem;
  opacity: 0.4;
}

.hero-image-float {
  position: absolute;
  padding: 0.6rem 1rem;
  background: rgba(22, 22, 31, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.hero-image-float.float-top {
  top: -12px;
  right: -12px;
  color: var(--success);
}

.hero-image-float.float-bottom {
  bottom: -12px;
  left: -12px;
  color: var(--accent-light);
}

/* ========== SECTION BASE ========== */
section {
  padding: 6rem 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ========== FEATURES ========== */
.features {
  background: var(--bg-secondary);
}

.features .container {
  max-width: 1280px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 58, 237, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(124, 58, 237, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ========== SHOWCASE / DETAILS ========== */
.showcase {
  background: var(--bg-primary);
}

.showcase .container {
  max-width: 1280px;
  margin: 0 auto;
}

.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.showcase-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.showcase-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.showcase-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
}

.showcase-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.showcase-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.showcase-list li .check {
  width: 22px;
  height: 22px;
  background: rgba(34, 197, 94, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--success);
  flex-shrink: 0;
}

.showcase-visual {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  line-height: 0;
}

.showcase-visual-inner {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ========== HOW IT WORKS ========== */
.how-it-works {
  background: var(--bg-secondary);
}

.how-it-works .container {
  max-width: 1280px;
  margin: 0 auto;
}

.steps-grid {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
}

.step-card {
  flex: 1;
  max-width: 260px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}

.step-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.step-number {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}

.step-icon {
  width: 56px;
  height: 56px;
  margin: 0.5rem auto 1.25rem;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  transition: all var(--transition);
}

.step-card:hover .step-icon {
  background: rgba(124, 58, 237, 0.18);
  border-color: rgba(124, 58, 237, 0.35);
  transform: scale(1.05);
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.3px;
}

.step-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.step-card kbd {
  display: inline-block;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font);
  color: var(--accent-light);
}

.step-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 4.5rem;
  color: var(--text-muted);
  flex-shrink: 0;
  width: 40px;
}

@media (max-width: 900px) {
  .steps-grid {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .step-card {
    max-width: 400px;
    width: 100%;
  }

  .step-connector {
    padding-top: 0;
    width: auto;
    height: 32px;
    transform: rotate(90deg);
  }
}

/* ========== COMPATIBILITY ========== */
.compatibility {
  background: none;
}

.compatibility .container {
  max-width: 1280px;
  margin: 0 auto;
}

.compat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.compat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
}

.compat-card:hover {
  border-color: rgba(124, 58, 237, 0.3);
  transform: translateY(-2px);
}

.compat-card .compat-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.compat-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.compat-card p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ========== CTA ========== */
.cta-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.25;
  pointer-events: none;
}

.cta-section .container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
}

.footer .container {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.75rem;
  max-width: 280px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 0.3rem 0;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-bottom-links a:hover {
  color: var(--text-secondary);
}

/* ========== ANIMATIONS ========== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

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

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

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

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

  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

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

  .burger {
    display: flex;
  }

  .hero {
    padding: 8rem 1.25rem 4rem;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .hero-image-float {
    display: none;
  }

  section {
    padding: 4rem 1.25rem;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.85rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

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

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}