/* ─── RESET & TOKENS ──────────────────────────────────────── */

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

:root {
  --bg: #050505;
  --surface: #0c0c0c;
  --card: #111113;
  --card-border: #1e1e22;
  --text: #e8e8ec;
  --text-dim: #6e6e7a;
  --text-mid: #9e9eaa;
  --accent: #00e68a;
  --accent-dim: rgba(0, 230, 138, 0.08);
  --accent-glow: rgba(0, 230, 138, 0.12);
  --accent-border: rgba(0, 230, 138, 0.2);
  --red: #ff5f57;
  --yellow: #febc2e;
  --green: #28c840;
  --code-bg: #0a0a0c;
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover { opacity: 0.8; }

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--card-border);
}

/* ─── NAV ─────────────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  backdrop-filter: blur(16px) saturate(1.8);
  -webkit-backdrop-filter: blur(16px) saturate(1.8);
  background: rgba(5, 5, 5, 0.7);
  border-bottom: 1px solid rgba(30, 30, 34, 0.5);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.logo-symbol {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); opacity: 1; }

.nav-npm {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── HERO ────────────────────────────────────────────────── */

.hero {
  max-width: 800px;
  margin: 0 auto;
  padding: 140px 24px 60px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 32px;
  animation: fadeInDown 0.6s ease-out;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-accent {
  color: var(--accent);
  position: relative;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-mid);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* ─── TERMINAL ────────────────────────────────────────────── */

.terminal {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  max-width: 640px;
  margin: 0 auto 32px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
  box-shadow:
    0 0 0 1px rgba(0, 230, 138, 0.04),
    0 8px 40px rgba(0, 0, 0, 0.4);
}

.terminal-bar {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--card-border);
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-green { background: var(--green); }

.terminal-title {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-body);
  margin-right: 40px;
}

.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  min-height: 180px;
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.terminal-prompt {
  color: var(--accent);
  font-weight: 600;
  user-select: none;
}

.terminal-cmd {
  color: var(--text);
}

.terminal-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}

.terminal-output {
  margin-top: 16px;
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.8;
  display: none;
}

.terminal-output.visible {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

.terminal-output .line-accent {
  color: var(--accent);
}

.terminal-output .line-dim {
  color: var(--text-dim);
}

/* ─── HERO ACTIONS ────────────────────────────────────────── */

.hero-actions {
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.install-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--code-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.install-box:hover {
  border-color: var(--accent-border);
  box-shadow: 0 0 20px var(--accent-glow);
}

.install-box code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  color: var(--text);
}

.copy-btn {
  color: var(--text-dim);
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.install-box:hover .copy-btn { color: var(--accent); }

/* ─── FLOW ────────────────────────────────────────────────── */

.flow-section {
  padding: 40px 24px 80px;
}

.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-width: 700px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.flow-icon {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  background: var(--card);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.flow-node-accent .flow-icon {
  border-color: var(--accent-border);
  background: var(--accent-dim);
  color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
}

.flow-label {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.flow-arrow {
  color: var(--text-dim);
}

/* ─── SECTION TITLES ──────────────────────────────────────── */

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-align: center;
  margin-bottom: 48px;
}

/* ─── FEATURES ────────────────────────────────────────────── */

.features {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  padding: 28px 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: var(--accent-border);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ─── USE CASES ───────────────────────────────────────────── */

.usecases {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px;
}

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.usecase-card {
  padding: 28px 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
}

.usecase-emoji {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.usecase-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.usecase-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.65;
}

.usecase-how {
  max-width: 600px;
  margin: 0 auto;
  padding: 28px 32px;
  background: var(--card);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  box-shadow: 0 0 30px var(--accent-glow);
}

.usecase-how h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  letter-spacing: -0.01em;
}

.how-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.how-step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.how-num {
  width: 24px;
  height: 24px;
  min-width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 1px;
}

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

  .usecase-how {
    padding: 24px 20px;
  }
}

.usecase-note {
  max-width: 600px;
  margin: 20px auto 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  text-align: center;
}

.usecase-note strong {
  color: var(--text-secondary);
}

/* ─── QUICK START ─────────────────────────────────────────── */

.quickstart {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-num {
  width: 36px;
  height: 36px;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 2px;
}

.step-content {
  flex: 1;
  min-width: 0;
}

.step-content h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.code-copy {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.72rem;
  cursor: pointer;
  transition: color 0.2s;
}

.code-copy:hover { color: var(--accent); }

.code-block pre {
  padding: 14px;
  overflow-x: auto;
}

.code-block code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-mid);
}

/* ─── API TABLE ───────────────────────────────────────────── */

.api-section {
  max-width: 860px;
  margin: 0 auto;
  padding: 80px 24px;
}

.api-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  background: var(--card);
}

.api-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.api-table th {
  text-align: left;
  padding: 14px 18px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  border-bottom: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.01);
}

.api-table td {
  padding: 12px 18px;
  border-bottom: 1px solid rgba(30, 30, 34, 0.4);
  color: var(--text-mid);
}

.api-table tr:last-child td {
  border-bottom: none;
}

.api-table tr:hover td {
  background: rgba(255, 255, 255, 0.01);
}

.method {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.method.post {
  background: rgba(0, 230, 138, 0.1);
  color: var(--accent);
}

.method.get {
  background: rgba(100, 149, 237, 0.1);
  color: #6495ed;
}

.api-note {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid var(--card-border);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.api-note strong {
  color: var(--text-mid);
}

/* ─── CTA ─────────────────────────────────────────────────── */

.cta-section {
  padding: 80px 24px 100px;
}

.cta-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 28px;
}

.install-box-lg {
  margin-bottom: 20px;
}

.install-box-lg code {
  font-size: 1rem;
}

.cta-links {
  font-size: 0.82rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.cta-links a {
  color: var(--accent);
  font-weight: 500;
}

.cta-sep { opacity: 0.3; }

.cta-version {
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

/* ─── FOOTER ──────────────────────────────────────────────── */

.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--card-border);
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-dim);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-dim);
  opacity: 0.5;
}

/* ─── ANIMATIONS ──────────────────────────────────────────── */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── RESPONSIVE ──────────────────────────────────────────── */

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

  .flow {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
  }

  .hero {
    padding: 120px 20px 40px;
  }

  .terminal {
    margin: 0 0 24px;
  }

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .api-table {
    font-size: 0.82rem;
  }

  .api-table th,
  .api-table td {
    padding: 10px 12px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .nav-links a:not(.nav-npm) {
    display: none;
  }
}

@media (max-width: 480px) {
  .install-box {
    width: 100%;
    justify-content: space-between;
  }

  .install-box code {
    font-size: 0.76rem;
  }

  .install-box-lg code {
    font-size: 0.82rem;
  }
}