/* AlquiBot Landing Page — Stunning dark modern design */
:root {
  --bg: #050507;
  --bg-section: #0a0b10;
  --bg-card: #111218;
  --bg-card-hover: #16171f;
  --border: #1e2030;
  --text: #e8eaf0;
  --text-secondary: #8b8fa8;
  --text-muted: #5c6080;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.12);
  --gradient: linear-gradient(135deg, #6366f1, #a855f7, #ec4899);
  --success: #22c55e;
  --warning: #f59e0b;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Language Toggle */
.lang-toggle {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 1000;
  display: flex;
  background: rgba(17, 18, 24, 0.9);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn.active {
  background: var(--accent);
  color: white;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  padding: 16px 0;
  transition: all 0.3s;
}

.nav.scrolled {
  background: rgba(5, 5, 7, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--accent) !important;
  color: white !important;
  padding: 8px 20px !important;
  border-radius: 8px;
  font-weight: 600 !important;
}

.nav-mobile-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 50% 0%, rgba(99, 102, 241, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 30% 50% at 20% 50%, rgba(168, 85, 247, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 30% 50% at 80% 50%, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text { text-align: left; }

.hero-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-badge {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-light);
  padding: 6px 18px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 28px;
}

.hero-title {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.btn-hero {
  background: var(--accent);
  color: white;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-block;
}

.btn-hero:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.3);
}

.btn-hero-secondary {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-light);
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

.btn-hero-secondary:hover {
  background: rgba(99, 102, 241, 0.2);
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.hero-stat { text-align: center; }
.hero-stat-value { display: block; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; }
.hero-stat-label { display: block; color: var(--text-muted); font-size: 0.8rem; margin-top: 4px; }
.hero-stat-divider { width: 1px; height: 40px; background: var(--border); }

/* Sections */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-section); }

.section-label {
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-light);
  margin-bottom: 12px;
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  text-align: center;
  margin-bottom: 20px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* Problems Grid */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.2s;
}

.problem-card:hover {
  border-color: rgba(239, 68, 68, 0.3);
  transform: translateY(-2px);
}

.problem-icon { font-size: 2rem; margin-bottom: 16px; }
.problem-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.problem-card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.6; }

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.2s;
  position: relative;
}

.feature-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
}

.feature-card.featured {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0 24px;
  border-color: rgba(99, 102, 241, 0.3);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), transparent);
}

.feature-card.featured .feature-icon { grid-row: span 2; align-self: center; font-size: 3rem; }
.feature-card.featured h3 { font-size: 1.3rem; }

.feature-tag {
  position: absolute;
  top: -10px;
  right: 24px;
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

.feature-icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }

/* Showcase */
.showcase-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 20px;
  margin-top: 48px;
}

.showcase-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/10;
}

.showcase-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.showcase-card:hover img {
  transform: scale(1.04);
}

.showcase-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px;
  background: linear-gradient(transparent, rgba(5, 5, 7, 0.85));
}

.showcase-overlay h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.showcase-overlay p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .showcase-grid { grid-template-columns: 1fr; }
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}

.testimonial-stars { margin-bottom: 16px; font-size: 0.9rem; }
.testimonial-card > p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; margin-bottom: 24px; }

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.testimonial-avatar-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-role { color: var(--text-muted); font-size: 0.8rem; }

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
  align-items: start;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.08), var(--bg-card));
  transform: scale(1.03);
}

.pricing-popular-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.pricing-currency { font-size: 1.5rem; vertical-align: super; }
.pricing-period { font-size: 0.85rem; font-weight: 400; color: var(--text-muted); }
.pricing-desc { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 24px; }

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 16px;
  height: 16px;
  background-color: var(--success);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/contain no-repeat;
}

.pricing-btn {
  display: block;
  text-align: center;
  padding: 14px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

.pricing-btn.primary {
  background: var(--accent);
  color: white;
}

.pricing-btn.primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.pricing-btn.secondary {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-light);
}

.pricing-btn.secondary:hover {
  background: rgba(99, 102, 241, 0.2);
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 100px 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.cta-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 36px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 12px;
}

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

.footer-links h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

.footer-links a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 4px 0;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Mobile */
@media (max-width: 768px) {
  .hero { padding: 120px 0 60px; }
  .hero-layout { grid-template-columns: 1fr; gap: 32px; }
  .hero-text { text-align: center; }
  .hero-image { max-width: 100%; }
  .hero-title { font-size: 2.5rem; letter-spacing: -1px; }
  .hero-subtitle { font-size: 1rem; margin-left: auto; margin-right: auto; }
  .hero-stats { flex-direction: column; gap: 20px; }
  .hero-stat-divider { width: 40px; height: 1px; }
  .hero-cta-group { flex-direction: column; align-items: center; justify-content: center; }

  .section { padding: 60px 0; }
  .section-title { font-size: 1.75rem; }

  .problems-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card.featured { grid-column: span 1; grid-template-columns: 1fr; }
  .feature-card.featured .feature-icon { grid-row: auto; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.popular { transform: none; }

  .nav-links { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: rgba(5,5,7,0.97); padding: 20px; gap: 16px; border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-mobile-btn { display: block; }

  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: 1fr; gap: 24px; }
  .lang-toggle { top: auto; bottom: 20px; right: 20px; }

  .cta-title { font-size: 2rem; }
}