/* Last Horizon — Cash App Style Design System v16 */

:root {
  /* === Colors === */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1e1e1e;
  --accent-green: #00d632;
  --accent-green-dim: #00b82b;
  --accent-green-glow: rgba(0, 214, 50, 0.15);
  --text-primary: #ffffff;
  --text-secondary: #8a8a8a;
  --text-muted: #555555;
  --border: #222222;
  --border-bright: #333333;

  /* === Typography === */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* === Spacing === */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 48px;
  --space-2xl: 80px;
  --space-3xl: 120px;

  /* === Radius === */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  /* === Transitions === */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === Layout === */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.container--narrow { max-width: 720px; }
.container--wide { max-width: 1400px; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}
.nav__logo span { color: var(--accent-green); }
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}
.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--text-primary); }
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  white-space: nowrap;
  text-decoration: none;
}
.btn--primary {
  background: var(--accent-green);
  color: #000000;
}
.btn--primary:hover {
  background: #00f03a;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px var(--accent-green-glow);
}
.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-bright);
}
.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: var(--bg-card);
}
.btn--large {
  padding: 16px 36px;
  font-size: 16px;
}
.btn--sm {
  padding: 8px 18px;
  font-size: 13px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: 160px;
  padding-bottom: var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 50%; transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(ellipse at top, rgba(0,214,50,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-pill);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-green);
  margin-bottom: var(--space-xl);
}
.hero__eyebrow::before {
  content: '●';
  font-size: 8px;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.hero__title {
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -3px;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}
.hero__title em {
  font-style: normal;
  color: var(--accent-green);
}
.hero__subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
  font-weight: 400;
}
.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero__proof {
  margin-top: var(--space-xl);
  font-size: 13px;
  color: var(--text-muted);
}
.hero__proof strong { color: var(--text-secondary); }

/* ============================================================
   STATS BAR
   ============================================================ */
.stats {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  text-align: center;
}
.stats__item-value {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1.5px;
  color: var(--text-primary);
}
.stats__item-value span { color: var(--accent-green); }
.stats__item-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products {
  padding: var(--space-3xl) 0;
}
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: var(--space-md);
}
.section-title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}
.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.product-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.product-card:hover::before { opacity: 1; }
.product-card__icon {
  width: 48px; height: 48px;
  background: var(--accent-green-glow);
  border: 1px solid rgba(0,214,50,0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: var(--space-lg);
}
.product-card__tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: var(--space-sm);
}
.product-card__name {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.product-card__desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}
.product-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-green);
  transition: gap var(--transition);
}
.product-card:hover .product-card__link { gap: 10px; }

/* ============================================================
   COMPARE TABLE
   ============================================================ */
.compare {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-2xl);
}
.compare-table th, .compare-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.compare-table thead th {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding-bottom: 20px;
}
.compare-table thead th:first-child { color: var(--text-secondary); }
.compare-table .col-lh { color: var(--text-primary); font-weight: 600; }
.compare-table .col-lh-head {
  color: var(--accent-green);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: none;
}
.compare-table .check { color: var(--accent-green); font-weight: 700; }
.compare-table .cross { color: var(--text-muted); }
.compare-table tbody tr:hover td { background: var(--bg-card); }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials {
  padding: var(--space-3xl) 0;
}
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}
.testimonial-card__quote {
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}
.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.testimonial-card__avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--accent-green-glow);
  border: 1px solid rgba(0,214,50,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}
.testimonial-card__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}
.testimonial-card__role {
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================================
   PRICING TEASER
   ============================================================ */
.pricing-teaser {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
  text-align: center;
}
.pricing-teaser__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: left;
  transition: all var(--transition);
}
.price-card--featured {
  border-color: var(--accent-green);
  box-shadow: 0 0 40px var(--accent-green-glow);
}
.price-card__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}
.price-card--featured .price-card__label { color: var(--accent-green); }
.price-card__price {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -2px;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.price-card__price sup {
  font-size: 20px;
  vertical-align: super;
  font-weight: 600;
}
.price-card__period {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}
.price-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.price-card__feature {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.price-card__feature::before {
  content: '✓';
  color: var(--accent-green);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse at bottom, rgba(0,214,50,0.06) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band__title {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: -2.5px;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}
.cta-band__title em {
  font-style: normal;
  color: var(--accent-green);
}
.cta-band__sub {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-top: 1px solid var(--border);
}
.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}
.footer__brand {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: var(--space-md);
}
.footer__brand span { color: var(--accent-green); }
.footer__tagline {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
}
.footer__col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}
.footer__links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__link {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--text-primary); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .hero__title { letter-spacing: -2px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .products__grid { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .pricing-teaser__cards { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
  .compare-table { font-size: 12px; }
  .compare-table th, .compare-table td { padding: 12px; }
}
@media (max-width: 480px) {
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-md); text-align: center; }
  .hero__actions { flex-direction: column; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   S2: WORKFLOW
   ============================================================ */
.workflow {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}
.workflow__steps {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}
.workflow__step {
  text-align: center;
  flex-basis: 0;
  flex-grow: 1;
}
.workflow__step-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-green);
  margin-bottom: var(--space-sm);
}
.workflow__step-tag--suite {
  color: var(--text-secondary); /* Different color for Suite */
}
.workflow__step-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}
.workflow__step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.workflow__arrow {
  font-size: 24px;
  color: var(--text-muted);
  margin-top: 36px;
}

/* ============================================================
   S3: USE CASES
   ============================================================ */
.use-cases {
    padding: var(--space-3xl) 0;
}
.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}
.use-case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}
.use-case-card__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--space-md);
}
.use-case-card__desc {
    color: var(--text-secondary);
}


/* ============================================================
   S4: SHARED CONTEXT
   ============================================================ */
.shared-context {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
  text-align: center;
}

/* ============================================================
   S5: PRODUCT DEMO
   ============================================================ */
.product-demo {
    padding: var(--space-3xl) 0;
}
.browser-window {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,0.3);
}
.browser-header {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: #222;
}
.dots { display: flex; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; background: #444; }
.dot:nth-child(1) { background: #ff5f56; }
.dot:nth-child(2) { background: #ffbd2e; }
.dot:nth-child(3) { background: #27c93f; }
.address-bar {
    flex-grow: 1;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    margin: 0 var(--space-md);
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}
.browser-content {
    display: flex;
    height: 450px;
}
.demo-sidebar {
    width: 200px;
    background: var(--bg-card);
    padding: var(--space-lg);
    border-right: 1px solid var(--border);
}
.demo-sidebar__item {
    padding: 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.demo-sidebar__item:hover {
    background: var(--bg-secondary);
}
.demo-sidebar__item--active {
    background: var(--accent-green-glow);
    color: var(--accent-green);
}
.demo-sidebar__item--suite {
    margin-top: auto;
    border-top: 1px solid var(--border);
    padding-top: var(--space-lg);
}
.demo-main {
    flex-grow: 1;
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}
.demo-chat-bubble {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    max-width: 80%;
}
.demo-chat-bubble--user {
    background: var(--accent-green);
    color: #000;
    align-self: flex-end;
    border-bottom-right-radius: var(--radius-sm);
}
.demo-chat-bubble--ai {
    background: var(--bg-card);
    align-self: flex-start;
    border-bottom-left-radius: var(--radius-sm);
}
.demo-chat-bubble--ai p { margin-bottom: var(--space-sm); color: var(--text-secondary); }
.demo-chat-bubble--ai ul {
    list-style-position: inside;
    padding-left: var(--space-sm);
    margin-bottom: var(--space-md);
}
.demo-chat-bubble--ai li { margin-bottom: var(--space-xs); }
.demo-chip {
    display: inline-block;
    background: var(--bg-secondary);
    border: 1px solid var(--border-bright);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}
.demo-chip:hover {
    background: var(--border-bright);
    color: var(--text-primary);
}


/* ============================================================
   S6: TRUST
   ============================================================ */
.trust-footer {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    text-align: center;
    margin-top: var(--space-2xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border);
}
.trust-item strong {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}
.trust-item span {
    font-size: 14px;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .workflow__steps { flex-direction: column; align-items: center; }
    .workflow__arrow { transform: rotate(90deg); margin: 0; }
    .use-cases__grid { grid-template-columns: 1fr; }
}