/* happy-balance demo — standalone static styles
 * Mirrors the real app's "japan palette" visual identity.
 */

:root {
  /* Primary palette */
  --evening-sea: #023c46;
  --froly: #f5796c;
  --bridesmaid: #fef7ee;
  --acapulco: #7abaa5;
  --sunglow: #fecd2c;

  --primary: var(--evening-sea);
  --primary-hover: #034a57;
  --primary-light: #e6f0f2;

  --accent: var(--froly);
  --success: var(--acapulco);
  --warning: var(--sunglow);

  --surface: var(--bridesmaid);
  --surface-elevated: #ffffff;
  --surface-muted: #f9f1e8;

  --gray-200: #e7e5e4;
  --gray-300: #d6d3d1;
  --gray-400: #a8a29e;
  --gray-500: #78716c;
  --gray-600: #57534e;
  --gray-700: #44403c;

  --text-primary: var(--evening-sea);
  --text-secondary: var(--gray-600);
  --text-muted: var(--gray-500);

  --border-color: var(--gray-200);

  --shadow-sm: 0 1px 2px 0 rgba(2, 60, 70, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(2, 60, 70, 0.1), 0 2px 4px -2px rgba(2, 60, 70, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(2, 60, 70, 0.1), 0 4px 6px -4px rgba(2, 60, 70, 0.1);

  --radius: 1rem;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', SFMono-Regular, 'JetBrains Mono', 'Fira Code', Menlo, Consolas, monospace;
}

@supports (color: color(display-p3 1 1 1)) {
  :root {
    --evening-sea: color(display-p3 0.008 0.235 0.276 / 1);
    --froly: color(display-p3 0.96 0.475 0.422 / 1);
    --bridesmaid: color(display-p3 0.997 0.968 0.934 / 1);
    --acapulco: color(display-p3 0.477 0.728 0.647 / 1);
    --sunglow: color(display-p3 0.995 0.804 0.174 / 1);
  }
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--surface);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.mono { font-family: var(--font-mono); letter-spacing: -0.02em; }

.wrap {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Header / hero ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(254, 247, 238, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.brand .logo {
  width: 30px; height: 30px;
  display: grid; place-items: center;
  background: var(--primary);
  color: #fff;
  border-radius: 9px;
  font-size: 1rem;
}
.demo-pill {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--primary);
  background: var(--sunglow);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

.hero {
  text-align: center;
  padding: 3.5rem 0 2.5rem;
}
.hero h1 {
  font-size: clamp(1.9rem, 6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--primary);
  margin-bottom: 0.9rem;
}
.hero h1 .hl { color: var(--accent); }
.hero p {
  max-width: 560px;
  margin: 0 auto 1.5rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
}
.hero .cta {
  display: inline-flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  justify-content: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-md); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: var(--surface-elevated); color: var(--primary); border: 1px solid var(--border-color); }
.btn-ghost:hover { background: var(--surface-muted); }

/* ---------- Section scaffolding ---------- */
section { padding: 2.25rem 0; }
.section-head { margin-bottom: 1.4rem; }
.section-head .eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
}
.section-head h2 {
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  color: var(--primary);
  margin-top: 0.15rem;
}
.section-head p { color: var(--text-secondary); margin-top: 0.3rem; }

.card {
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* ---------- Dashboard ---------- */
.dash-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.stat {
  padding: 1.1rem 1.2rem;
}
.stat .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}
.stat .value {
  font-size: 1.7rem;
  font-weight: 800;
  margin-top: 0.25rem;
}
.stat .value.pos { color: var(--success); }
.stat .value.neg { color: var(--accent); }
.stat .sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.dash-lower {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
.panel { padding: 1.2rem 1.3rem; }
.panel h3 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

/* income vs expense bars */
.ie-row { margin-bottom: 0.9rem; }
.ie-row:last-child { margin-bottom: 0; }
.ie-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}
.ie-top .amt { font-weight: 700; }
.bar-track {
  height: 12px;
  background: var(--surface-muted);
  border-radius: 999px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 999px;
}
.bar-fill.income { background: var(--success); }
.bar-fill.expense { background: var(--accent); }

/* category breakdown */
.cat-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.85rem;
}
.cat-row:last-child { margin-bottom: 0; }
.cat-icon {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 9px;
  font-size: 1.05rem;
  background: var(--surface-muted);
}
.cat-mid .name { font-size: 0.86rem; font-weight: 600; }
.cat-mid .bar-track { height: 8px; margin-top: 0.3rem; }
.cat-amt { font-weight: 700; font-size: 0.86rem; white-space: nowrap; }

/* ---------- Transactions list ---------- */
.tx-list { overflow: hidden; }
.tx {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.9rem;
  padding: 0.85rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
}
.tx:last-child { border-bottom: none; }
.tx-icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 11px;
  font-size: 1.2rem;
  background: var(--surface-muted);
}
.tx-main .merchant { font-weight: 700; font-size: 0.95rem; }
.tx-main .meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}
.badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
}
.badge.income { background: rgba(122, 186, 165, 0.18); color: #3f7d6b; }
.badge.expense { background: rgba(245, 121, 108, 0.18); color: #c0493d; }
.badge.investment { background: rgba(254, 205, 44, 0.22); color: #94701a; }
.tx-amt {
  font-weight: 800;
  font-size: 1rem;
  white-space: nowrap;
}
.tx-amt.pos { color: var(--success); }
.tx-amt.neg { color: var(--text-primary); }
.tx-amt.inv { color: #94701a; }

/* ---------- Tinder ---------- */
.tinder-section { text-align: center; }
.tinder-stage {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  min-height: 340px;
  display: grid;
  place-items: center;
  perspective: 1000px;
}

.tinder-card {
  position: relative;
  width: 100%;
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 1.25rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
  overflow: hidden;
  will-change: transform;
  transform-style: preserve-3d;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.tinder-card.animating {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, opacity 0.35s ease;
}
.tinder-card.dragging { cursor: grabbing; }

.swipe-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1.25rem;
  pointer-events: none;
  z-index: 3;
}
.swipe-overlay.accept { background: rgba(122, 186, 165, 0.12); border: 3px solid var(--acapulco); }
.swipe-overlay.reject { background: rgba(245, 121, 108, 0.12); border: 3px solid var(--froly); }
.overlay-label {
  font-size: 1.6rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 3px;
  padding: 0.5rem 1.6rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.85);
}
.swipe-overlay.accept .overlay-label { color: var(--acapulco); border: 3px solid var(--acapulco); transform: rotate(-12deg); }
.swipe-overlay.reject .overlay-label { color: var(--froly); border: 3px solid var(--froly); transform: rotate(12deg); }

.card-body {
  padding: 1.7rem 1.5rem;
  position: relative;
  z-index: 1;
  text-align: left;
}
.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--primary);
  background: rgba(2, 60, 70, 0.08);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

/* simple categorization card */
.tc-merchant-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.9rem;
}
.tc-emoji {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  font-size: 1.7rem;
  border-radius: 13px;
  background: var(--surface-muted);
  flex-shrink: 0;
}
.tc-merchant { font-size: 1.25rem; font-weight: 800; color: var(--text-primary); }
.tc-date { font-size: 0.8rem; color: var(--text-muted); }
.tc-amount {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 800;
  margin: 0.5rem 0 1rem;
}
.tc-amount.neg { color: var(--text-primary); }
.tc-suggest {
  background: var(--surface-muted);
  border-radius: 0.8rem;
  padding: 0.85rem 1rem;
}
.tc-suggest .lbl {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}
.tc-suggest .cat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 0.3rem;
}

/* reimbursement legs (reused styling) */
.leg {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.75rem;
  background: var(--surface-muted);
}
.leg-top { display: flex; justify-content: space-between; align-items: baseline; gap: 0.5rem; }
.leg-merchant { font-size: 1rem; font-weight: 700; color: var(--text-primary); }
.leg-amount { font-family: var(--font-mono); font-size: 1.15rem; font-weight: 700; }
.leg-amount.income { color: var(--success); }
.leg-amount.expense { color: var(--accent); }
.leg-desc { font-size: 0.8rem; color: var(--text-secondary); }
.leg-date { font-size: 0.74rem; color: var(--text-muted); }
.link-row { display: flex; align-items: center; gap: 0.5rem; margin: 0.6rem 0; }
.link-line { flex: 1; height: 1px; background: var(--border-color); }
.link-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--surface-elevated);
  border: 1.5px solid var(--primary);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}
.reasons { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.8rem; }
.reason-chip {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-muted);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
}

/* tinder actions */
.tinder-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.action-btn {
  width: 64px; height: 64px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
  background: var(--surface-elevated);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.action-btn:hover { transform: scale(1.08); }
.action-btn:active { transform: scale(0.95); }
.action-btn.skip { color: var(--accent); border: 2px solid rgba(245, 121, 108, 0.3); }
.action-btn.accept { color: #fff; background: var(--success); }
.action-btn .lbl {
  position: absolute;
}
.action-caption {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  width: 64px;
  text-align: center;
}
.action-col { display: flex; flex-direction: column; align-items: center; gap: 0.45rem; }

.tinder-progress {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
  margin: 0.2rem 0 1.2rem;
}

/* done state */
.tinder-done {
  text-align: center;
  padding: 2.5rem 1.5rem;
}
.tinder-done .big { font-size: 3rem; }
.tinder-done h3 { font-size: 1.3rem; color: var(--primary); margin: 0.6rem 0 0.3rem; }
.tinder-done p { color: var(--text-secondary); margin-bottom: 1.2rem; }

.caption {
  max-width: 460px;
  margin: 1.3rem auto 0;
  font-size: 0.86rem;
  color: var(--text-secondary);
  background: var(--surface-elevated);
  border: 1px dashed var(--border-color);
  border-radius: 0.8rem;
  padding: 0.8rem 1rem;
}

.tinder-tabs {
  display: inline-flex;
  gap: 0.4rem;
  background: var(--surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 0.3rem;
  margin: 0 auto 1.5rem;
}
.tab {
  font: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.tab.active { background: var(--primary); color: #fff; }

/* ---------- Features ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.feature { padding: 1.3rem; }
.feature .ic { font-size: 1.7rem; }
.feature h3 { font-size: 1.05rem; color: var(--primary); margin: 0.6rem 0 0.35rem; }
.feature p { font-size: 0.88rem; color: var(--text-secondary); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 2.2rem 0 2.6rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.site-footer a { color: var(--primary); font-weight: 700; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .note {
  display: inline-block;
  margin-bottom: 0.7rem;
  background: var(--surface-muted);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .dash-grid { grid-template-columns: 1fr; }
  .dash-lower { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .tx { gap: 0.6rem; padding: 0.8rem 0.9rem; }
  .tc-amount { font-size: 1.7rem; }
}