/* ===== Variables & Reset ===== */
:root {
  --bg-deep: #030712;
  --bg-main: #0a0f1a;
  --bg-soft: #111827;
  --bg-surface: rgba(17, 24, 39, 0.8);
  --bg-card: rgba(17, 24, 39, 0.6);

  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-dark: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.4);

  --success: #10b981;
  --warning: #f59e0b;

  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nav-h: 72px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 60px var(--accent-glow);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

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

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul {
  list-style: none;
}

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

/* ===== Gradient Text ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--accent-light), #a78bfa, #f472b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  box-shadow: var(--shadow-md), 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 40px var(--accent-glow);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn-full {
  width: 100%;
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
}

.nav-logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

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

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent);
  color: white;
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.nav-cta-ghost {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-small {
  padding: 10px 16px;
  font-size: 14px;
  border-radius: var(--radius-md);
}

.nav-cta:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.nav-cta-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--nav-h) + 60px) 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(168, 85, 247, 0.1), transparent);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
  filter: blur(80px);
  opacity: 0.5;
}

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

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-light);
  margin-bottom: 24px;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
  font-size: clamp(40px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.hero-image {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-image-glow {
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent), #a78bfa, #f472b6);
  opacity: 0.5;
  filter: blur(20px);
  z-index: -1;
}

.hero-screenshot {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
}

/* ===== Section Styles ===== */
section {
  padding: 120px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

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

/* ===== Features Section ===== */
.features {
  background: var(--bg-main);
}

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

.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}

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

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent-light);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== Screenshots Section ===== */
.screenshots {
  background: var(--bg-deep);
}

.screenshots-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.screenshot-tab {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  transition: all 0.2s;
}

.screenshot-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-light);
}

.screenshot-tab.active {
  color: white;
  background: var(--accent);
  border-color: var(--accent);
}

.screenshot-display {
  max-width: 1000px;
  margin: 0 auto;
}

.screenshot-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg-soft);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
}

.screenshot-frame img {
  width: 100%;
  display: block;
  transition: opacity 0.3s ease;
}

/* ===== Partners Section ===== */
.partners {
  background: var(--bg-main);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.partner-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.partner-card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 8px;
}

.partner-card span {
  font-weight: 600;
  color: var(--text-primary);
}

.partner-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-md);
}

/* ===== Pricing Section ===== */
.pricing {
  background: var(--bg-main);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
  max-width: 980px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  width: 100%;
  padding: 48px 40px;
  background: linear-gradient(180deg, var(--bg-soft), var(--bg-card));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  text-align: center;
  overflow: hidden;
}

.pricing-status {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}


.pricing-header {
  margin-bottom: 32px;
}

.pricing-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 12px;
}

.price-currency {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-secondary);
}

.price-amount {
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
}

.price-decimal {
  font-size: 24px;
  font-weight: 600;
}

.price-period {
  font-size: 16px;
  color: var(--text-muted);
  margin-left: 4px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features svg {
  flex-shrink: 0;
  stroke: var(--success);
}

.pricing-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.pricing-legal {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.pricing-legal a {
  color: var(--accent-light);
  text-decoration: underline;
}

/* ===== FAQ Section ===== */
.faq {
  background: var(--bg-deep);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 24px 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
}

.faq-question svg {
  flex-shrink: 0;
  stroke: var(--text-muted);
  transition: transform 0.3s;
}

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

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

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding-bottom: 24px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
  padding: 80px 0 40px;
  background: var(--bg-main);
  border-top: 1px solid var(--border);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

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

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-column a {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 8px 0;
  transition: color 0.2s;
}

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

.footer-column button {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 8px 0;
  background: none;
  border: none;
}

.footer-bottom {
  padding-top: 40px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

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

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 20px;
    background: rgba(3, 7, 18, 0.98);
    border-bottom: 1px solid var(--border);
  }

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

  .nav-links a {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-cta {
    display: none;
  }

  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: calc(var(--nav-h) + 40px) 0 60px;
  }

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  section {
    padding: 80px 0;
  }

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

  .screenshots-tabs {
    gap: 6px;
  }

  .screenshot-tab {
    padding: 8px 14px;
    font-size: 12px;
  }

  .pricing-card {
    padding: 32px 24px;
  }

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

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

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 2000;
}

.modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.7);
  backdrop-filter: blur(6px);
}

.modal-card {
  position: relative;
  width: min(640px, 100%);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 28px;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.modal-form label {
  display: block;
  margin-bottom: 14px;
}

.modal-form span {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.modal-form input,
.modal-form select,
.modal-form textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 14px;
  border-radius: var(--radius-md);
  outline: none;
}

.modal-form select option {
  background: #0f172a;
  color: var(--text-primary);
}

.modal-form input:focus,
.modal-form select:focus,
.modal-form textarea:focus {
  border-color: var(--accent-light);
  box-shadow: 0 0 0 2px rgba(129, 140, 248, 0.2);
}

.modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 8px;
}

.modal-note {
  margin-top: 12px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.modal-note a {
  color: var(--accent-light);
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

@media (max-width: 640px) {
  .modal-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Legal Pages ===== */
.legal-page {
  padding: calc(var(--nav-h) + 60px) 0 80px;
  min-height: 100vh;
}

.legal-page .container {
  max-width: 800px;
}

.legal-page h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 32px;
}

.legal-page h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 40px 0 16px;
}

.legal-page p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-page ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal-page li {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
  list-style: disc;
}

.legal-page a {
  color: var(--accent-light);
  text-decoration: underline;
}

/* ===== Animation Classes ===== */
.nav.scrolled {
  background: rgba(3, 7, 18, 0.95);
  box-shadow: var(--shadow-md);
}

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

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

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

/* Scroll animations */
.feature-card,
.pricing-card,
.faq-item,
.hero-stat {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.feature-card.animate-in,
.pricing-card.animate-in,
.faq-item.animate-in,
.hero-stat.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Screenshot transition */
#screenshot-preview {
  transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Spinner for loading state */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Button disabled state */
.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}