@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,600;0,9..144,700;1,9..144,300;1,9..144,400&family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&display=swap');

/* ─── Tokens ─────────────────────────────────────────────────────── */
:root {
  --cream:    #F5F0E8;
  --cream-2:  #EDE8DC;
  --cream-3:  #E4DDD0;
  --ink:      #1A1714;
  --ink-2:    #3D3830;
  --ink-3:    #6B6459;
  --amber:    #E87722;
  --amber-2:  #C8620E;
  --amber-pale: #FBE9D5;
  --amber-mid: #F5C89A;
  --green:    #2D6A4F;
  --red:      #C0392B;

  --font-display: 'Fraunces', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(26,23,20,0.08);
  --shadow-md: 0 4px 16px rgba(26,23,20,0.12);
  --shadow-lg: 0 12px 40px rgba(26,23,20,0.16);

  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* subtle dot grid texture */
  background-image: radial-gradient(circle, var(--cream-3) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ─── Nav ─────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 1.5px solid var(--cream-3);
  backdrop-filter: blur(8px);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
  text-decoration: none;
}

.nav-logo-mark {
  width: 26px;
  height: 26px;
  background: var(--amber);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo-mark svg {
  width: 14px;
  height: 14px;
  fill: white;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
  letter-spacing: -0.3px;
}

.nav-logo-tld {
  color: var(--amber);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-size: 12px;
  color: var(--ink-3);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

/* ─── Hero ────────────────────────────────────────────────────────── */
.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.hero-eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 500;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-eyebrow::before {
  content: '';
  width: 24px;
  height: 1.5px;
  background: var(--amber);
  display: block;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 20px;
}

.hero-title em {
  font-style: italic;
  color: var(--amber);
}

.hero-sub {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.7;
  max-width: 380px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 36px;
}

.stat-item {}

.stat-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.5px;
}

.stat-label {
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ─── App Card ────────────────────────────────────────────────────── */
.app-card {
  background: white;
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  /* slight tilt for personality */
  transform: rotate(0.3deg);
  transition: transform 0.4s ease;
}

.app-card:hover {
  transform: rotate(0deg);
}

/* ─── Tab Bar ─────────────────────────────────────────────────────── */
.tab-bar {
  display: flex;
  border-bottom: 1.5px solid var(--cream-3);
  background: var(--cream);
  padding: 0 4px;
}

.tab-btn {
  flex: 1;
  padding: 14px 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  transition: color var(--transition), background var(--transition);
  border-bottom: 2px solid transparent;
  margin-bottom: -1.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  position: relative;
}

.tab-btn svg {
  width: 13px;
  height: 13px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.tab-btn:hover {
  color: var(--ink);
  background: var(--cream-2);
}

.tab-btn.active {
  color: var(--amber);
  border-bottom-color: var(--amber);
  background: white;
}

.tab-btn.active svg { opacity: 1; }

/* ─── Tab Panels ─────────────────────────────────────────────────── */
.tab-panel {
  display: none;
  padding: 28px;
  animation: fadeIn 0.2s ease;
}

.tab-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Form ────────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--cream);
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
}

.form-input::placeholder { color: var(--ink-3); opacity: 0.5; }

.form-input:focus {
  border-color: var(--amber);
  background: white;
  box-shadow: 0 0 0 3px rgba(232, 119, 34, 0.12);
}

.form-input.error {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.08);
}

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

.form-hint {
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 4px;
  opacity: 0.7;
}

/* ─── Button ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--amber);
  color: white;
  width: 100%;
  padding: 14px;
  font-size: 12px;
}

.btn-primary:hover {
  background: var(--amber-2);
  box-shadow: 0 4px 16px rgba(232, 119, 34, 0.3);
  transform: translateY(-1px);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-ghost {
  background: transparent;
  color: var(--ink-3);
  border: 1.5px solid var(--cream-3);
  padding: 8px 16px;
  font-size: 11px;
}

.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-pale);
}

.btn-icon {
  padding: 8px;
  background: var(--cream);
  border: 1.5px solid var(--cream-3);
  color: var(--ink-3);
  border-radius: var(--radius-md);
}

.btn-icon:hover {
  background: var(--amber-pale);
  border-color: var(--amber-mid);
  color: var(--amber-2);
}

/* ─── Spinner ─────────────────────────────────────────────────────── */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: none;
}

.spinner.show { display: block; }

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

/* ─── Result Card ─────────────────────────────────────────────────── */
.result-card {
  background: var(--amber-pale);
  border: 1.5px solid var(--amber-mid);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 20px;
  display: none;
  animation: slideUp 0.3s ease;
}

.result-card.show { display: block; }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-2);
  margin-bottom: 8px;
  font-weight: 500;
}

.result-url-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.result-url {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.4;
}

.result-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.copy-feedback {
  font-size: 10px;
  color: var(--green);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 6px;
  height: 14px;
  transition: opacity 0.3s;
}

/* ─── Error message ───────────────────────────────────────────────── */
.error-msg {
  background: #FDF2F2;
  border: 1px solid #EAB5B5;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--red);
  margin-top: 12px;
  display: none;
}

.error-msg.show { display: block; }

/* ─── QR Panel ────────────────────────────────────────────────────── */
.qr-output {
  text-align: center;
  padding: 24px 0;
  display: none;
}

.qr-output.show { display: block; }

.qr-canvas-wrap {
  display: inline-block;
  padding: 16px;
  background: white;
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

#qr-canvas {
  display: block;
}

.qr-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Stats Panel ─────────────────────────────────────────────────── */
.stats-result {
  display: none;
  animation: fadeIn 0.3s ease;
}

.stats-result.show { display: block; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.stats-tile {
  background: var(--cream);
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-md);
  padding: 16px;
}

.stats-tile-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.5px;
  line-height: 1;
}

.stats-tile-label {
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 4px;
}

.stats-url-info {
  background: var(--cream);
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-top: 12px;
}

.stats-url-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.stats-url-key {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  min-width: 52px;
  flex-shrink: 0;
}

.stats-url-val {
  font-size: 12px;
  color: var(--ink);
  word-break: break-all;
}

.stats-url-val a {
  color: var(--amber);
  text-decoration: none;
}

.stats-url-val a:hover { text-decoration: underline; }

/* ─── Divider ─────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1.5px solid var(--cream-3);
  margin: 0;
}

/* ─── How It Works section ────────────────────────────────────────── */
.how-section {
  max-width: 1100px;
  margin: 72px auto 0;
  padding: 0 24px;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 40px;
}

.section-num {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 700;
  color: var(--cream-3);
  line-height: 1;
  letter-spacing: -2px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--ink);
}

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

.step-card {
  background: white;
  border: 1.5px solid var(--cream-3);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-icon {
  width: 40px;
  height: 40px;
  background: var(--amber-pale);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-icon svg {
  width: 20px;
  height: 20px;
  color: var(--amber);
}

.step-num {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 8px;
  font-weight: 500;
}

.step-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.step-desc {
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.7;
}

/* ─── Footer ──────────────────────────────────────────────────────── */
footer {
  margin-top: auto;
  border-top: 1.5px solid var(--cream-3);
  background: var(--cream);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: -0.2px;
}

.footer-brand span { color: var(--amber); }

.footer-copy {
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  font-size: 11px;
  color: var(--ink-3);
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

/* ─── Toast ───────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: white;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 12px;
  letter-spacing: 0.06em;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s, transform 0.25s;
  z-index: 999;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  flex-shrink: 0;
}

/* ─── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 20px 32px;
  }

  .hero-stats { gap: 24px; }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-row { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .tab-btn { font-size: 9px; gap: 4px; }

  .result-url-row { flex-direction: column; align-items: flex-start; }

  .result-actions { width: 100%; }

  .how-section { margin-top: 48px; }

  .app-card { transform: none; }
}

@media (max-width: 480px) {
  .nav-links { display: none; }
  .stats-grid { grid-template-columns: 1fr; }
}