/* === Variables === */
:root {
  --primary: #6366F1;
  --primary-dark: #4F46E5;
  --primary-light: #818CF8;
  --cyan: #22D3EE;
  --green: #10B981;
  --amber: #F59E0B;
  --red: #EF4444;

  --dark-900: #0B1120;
  --dark-800: #0F172A;
  --dark-700: #1E293B;
  --dark-600: #334155;
  --gray-500: #64748B;
  --gray-400: #94A3B8;
  --gray-300: #CBD5E1;
  --gray-200: #E2E8F0;
  --gray-100: #F1F5F9;
  --gray-50: #F8FAFC;
  --white: #FFFFFF;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  color: var(--dark-700);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

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

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover { background: rgba(255,255,255,0.18); }
.btn-white {
  background: var(--white);
  color: var(--primary);
}
.btn-white:hover { background: var(--gray-100); transform: translateY(-1px); }

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11,17,32,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
}
.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  border-radius: 8px;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--white);
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-toggle {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--gray-300);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.lang-toggle:hover { background: rgba(255,255,255,0.15); color: var(--white); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* === Hero === */
.hero {
  position: relative;
  background: var(--dark-900);
  color: var(--white);
  padding: 140px 0 100px;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
}
.hero-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -200px;
  left: -100px;
}
.hero-glow-2 {
  width: 500px;
  height: 500px;
  background: var(--cyan);
  bottom: -200px;
  right: -100px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-block;
  background: rgba(99,102,241,0.2);
  border: 1px solid rgba(99,102,241,0.3);
  color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-title .gradient {
  background: linear-gradient(135deg, var(--primary-light), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--gray-400);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}
.hero-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.badge {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--gray-400);
}

/* Mock Panel */
.mock-panel {
  background: var(--dark-800);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.mock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--dark-700);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mock-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--white);
}
.mock-dots {
  display: flex;
  gap: 6px;
}
.mock-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-500);
}
.mock-sources {
  display: flex;
  gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.mock-src {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--gray-400);
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.08);
}
.mock-src.active {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(99,102,241,0.08);
}
.mock-chat {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mock-user {
  align-self: flex-end;
  background: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  border-radius: 14px 14px 4px 14px;
  font-size: 0.85rem;
  max-width: 85%;
}
.mock-search {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mock-search-line {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--gray-500);
}
.mock-search-icon { font-size: 0.7rem; }
.mock-results {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.mock-result-tag {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.04);
  color: var(--gray-400);
}
.mock-result-tag.notion { color: var(--gray-300); }
.mock-result-tag.slack { color: var(--cyan); }
.mock-answer {
  background: rgba(255,255,255,0.04);
  border-radius: 14px 14px 14px 4px;
  padding: 14px 16px;
  font-size: 0.82rem;
  color: var(--gray-300);
  line-height: 1.6;
}
.mock-sources-cited {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.mock-cite {
  font-size: 0.68rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}
.mock-cite.notion {
  background: rgba(255,255,255,0.08);
  color: var(--gray-300);
}
.mock-cite.slack {
  background: rgba(34,211,238,0.1);
  color: var(--cyan);
}

/* === Sections === */
.section { padding: 100px 0; }
.section-light { background: var(--white); }
.section-gray { background: var(--gray-50); }
.section-dark { background: var(--dark-800); color: var(--white); }
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-dark .section-tag { color: var(--cyan); }
.section-header h2 {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.section-dark .section-header h2 { color: var(--white); }
.section-header p {
  font-size: 1.1rem;
  color: var(--gray-500);
  line-height: 1.7;
}
.section-dark .section-header p { color: var(--gray-400); }

/* === Problem Cards === */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}
.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.problem-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.problem-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--dark-700);
}
.problem-card p {
  font-size: 0.95rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* === Comparison === */
.comp-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.comp-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.comp-card:hover {
  border-color: rgba(99,102,241,0.3);
  background: rgba(255,255,255,0.06);
}
.comp-question {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  padding: 16px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}
.comp-question::before {
  content: '💬 ';
}
.comp-answers {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: start;
}
.comp-vs {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray-500);
  align-self: center;
  padding-top: 32px;
}
.comp-label {
  font-size: 0.82rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 12px;
}
.generic-label {
  background: rgba(148,163,184,0.15);
  color: var(--gray-400);
}
.ask-label {
  background: rgba(99,102,241,0.2);
  color: var(--primary-light);
}
.comp-generic {
  padding: 20px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
}
.comp-generic p {
  color: var(--gray-500);
  font-size: 0.92rem;
  line-height: 1.7;
  font-style: italic;
}
.comp-ask {
  padding: 20px;
  border-radius: var(--radius);
  background: rgba(99,102,241,0.06);
  border: 1px solid rgba(99,102,241,0.2);
}
.comp-ask p {
  color: var(--gray-200);
  font-size: 0.92rem;
  line-height: 1.7;
}
.comp-sources {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.comp-src {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
}
.comp-src.notion {
  background: rgba(255,255,255,0.08);
  color: var(--gray-300);
}
.comp-src.slack {
  background: rgba(34,211,238,0.1);
  color: var(--cyan);
}

/* === Steps === */
.steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.step-card {
  flex: 1;
  max-width: 320px;
  text-align: center;
  padding: 36px 28px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.step-num {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}
.step-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--dark-700);
}
.step-card p {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 1.6;
}
.step-arrow {
  font-size: 1.4rem;
  color: var(--gray-400);
  flex-shrink: 0;
}

/* === Features === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  padding: 32px 28px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.feat-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--dark-700);
}
.feature-card p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* === Pricing === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 800px;
  margin: 0 auto;
}
.price-card {
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  position: relative;
  transition: var(--transition);
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.price-other {
  background: var(--gray-50);
}
.price-ask {
  background: var(--white);
  border: 2px solid var(--primary);
}
.price-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}
.price-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--dark-700);
}
.price-amount {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--dark-700);
  margin-bottom: 20px;
}
.price-amount span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-500);
}
.price-card ul {
  margin-bottom: 24px;
}
.price-card li {
  padding: 6px 0;
  font-size: 0.92rem;
  color: var(--gray-500);
  position: relative;
  padding-left: 24px;
}
.price-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}
.price-other li::before {
  content: '•';
  color: var(--gray-400);
}
.price-calc {
  padding-top: 16px;
  border-top: 1px solid var(--gray-200);
  font-size: 0.85rem;
  color: var(--gray-500);
}
.price-calc strong {
  display: block;
  margin-top: 4px;
  font-size: 1rem;
  color: var(--red);
}

/* === CTA === */
.section-cta {
  background: linear-gradient(135deg, var(--primary), #4338CA);
  color: var(--white);
  text-align: center;
}
.cta-content h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* === Contact (Tally embed) === */
.tally-embed {
  max-width: 640px;
  margin: 0 auto;
  min-height: 400px;
}
.tally-embed iframe {
  border-radius: var(--radius);
}

/* === Footer === */
.footer {
  background: var(--dark-900);
  color: var(--gray-400);
  padding: 48px 0 32px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.footer .nav-logo {
  color: var(--white);
  font-size: 1rem;
}
.footer-left {
  text-align: center;
}
.footer-left p {
  margin-top: 8px;
  font-size: 0.85rem;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--gray-500);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--gray-500);
}

/* === Animations === */
.anim {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.problem-grid .anim:nth-child(2) { transition-delay: 0.1s; }
.problem-grid .anim:nth-child(3) { transition-delay: 0.2s; }
.features-grid .anim:nth-child(2) { transition-delay: 0.08s; }
.features-grid .anim:nth-child(3) { transition-delay: 0.16s; }
.features-grid .anim:nth-child(4) { transition-delay: 0.24s; }
.features-grid .anim:nth-child(5) { transition-delay: 0.32s; }
.features-grid .anim:nth-child(6) { transition-delay: 0.40s; }

/* Hero entrance */
.hero-content { animation: fadeUp 0.8s ease forwards; }
.hero-visual { animation: fadeUp 0.8s 0.3s ease forwards; opacity: 0; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .hero-badges { justify-content: center; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .mock-panel { animation: none; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn { display: none; }
  .hamburger { display: flex; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--dark-800);
    padding: 16px 24px;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-actions .lang-toggle { display: block; }

  .hero { padding: 120px 0 60px; min-height: auto; }
  .hero-title { font-size: 2.2rem; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 1.8rem; }

  .problem-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  .comp-answers {
    grid-template-columns: 1fr;
  }
  .comp-vs { padding-top: 0; text-align: center; }

  .steps-grid {
    flex-direction: column;
  }
  .step-arrow {
    transform: rotate(90deg);
  }
  .step-card { max-width: 100%; }

  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .hero-ctas { flex-direction: column; align-items: center; }
}