:root {
  --bg: #f2f2f7;
  --surface: #ffffff;
  --surface-translucent: rgba(255, 255, 255, 0.78);
  --text: #1c1e21;
  --muted: #6e6e73;
  --border: #e5e5ea;
  --primary: #d85211;
  --primary-dark: #a33d0a;
  --primary-tint: #fdead9;
  --primary-text: #ffffff;
  --shadow: 0 1px 2px rgba(28, 20, 15, 0.04), 0 8px 24px rgba(28, 20, 15, 0.06);
  --danger-bg: #fde3e1;
  --danger-text: #b3271e;
  --paid-bg: #dcf5e3;
  --paid-text: #1a7a3c;
  --sent-bg: var(--primary-tint);
  --sent-text: var(--primary-dark);
  --draft-bg: #eeeef0;
  --draft-text: #57575c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --surface: #1c1c1e;
    --surface-translucent: rgba(28, 28, 30, 0.72);
    --text: #f5f5f7;
    --muted: #98989f;
    --border: #2c2c2e;
    --primary: #ff8a3d;
    --primary-dark: #ffab70;
    --primary-tint: #3a2412;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
    --danger-bg: #3a1e1c;
    --danger-text: #ff8a80;
    --paid-bg: #16321f;
    --paid-text: #6fe397;
    --draft-bg: #2c2c2e;
    --draft-text: #c7c7cc;
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { background: var(--bg); }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: 3rem;
  -webkit-font-smoothing: antialiased;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: calc(0.9rem + env(safe-area-inset-top)) 1.25rem 0.9rem;
  background: var(--surface-translucent);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.brand::before {
  content: "";
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  flex-shrink: 0;
  background:
    radial-gradient(circle at center, var(--primary) 0 16%, transparent 17%),
    radial-gradient(circle at center, transparent 0 55%, #232326 56% 68%, transparent 69%),
    #232326;
}

.topbar nav a {
  color: var(--primary);
  text-decoration: none;
  margin-left: 1.1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
}

h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.01em; margin-top: 0.25rem; }
h2 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 1.75rem 0 0.6rem;
  color: var(--muted);
}

.muted { color: var(--muted); font-size: 0.85rem; font-weight: 400; }
.hint { color: var(--muted); font-size: 0.85rem; }

.stat-row {
  display: flex;
  gap: 0.7rem;
  margin: 1rem 0 1.4rem;
}

.stat {
  flex: 1;
  background: var(--surface);
  border-radius: 16px;
  padding: 0.85rem 0.6rem;
  text-align: center;
  box-shadow: var(--shadow);
}

.stat-danger .stat-value { color: var(--danger-text); }

.stat-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.stat-value {
  display: block;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-top: 0.2rem;
}

.banner {
  background: var(--draft-bg);
  color: var(--draft-text);
  border-radius: 12px;
  padding: 0.8rem 1rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.banner-warning {
  background: var(--danger-bg);
  color: var(--danger-text);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
  margin: 1rem 0 1.4rem;
}

.chart-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 1rem 0.75rem;
  box-shadow: var(--shadow);
  margin-bottom: 0.5rem;
}

.chart-svg { width: 100%; height: auto; overflow: visible; }
.chart-baseline { stroke: var(--border); stroke-width: 1; }
.chart-axis-label { fill: var(--muted); font-size: 8px; }
.chart-row-label {
  fill: var(--text);
  font-size: 11px;
  font-weight: 600;
  dominant-baseline: middle;
}
.chart-value-label {
  fill: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  dominant-baseline: middle;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
  border-radius: 16px;
  padding: 1rem 1.1rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:active {
  transform: scale(0.985);
}

.card-overdue {
  box-shadow: var(--shadow), inset 0 0 0 1.5px var(--danger-text);
}

.card-main { display: flex; flex-direction: column; gap: 0.1rem; }
.card-main strong { font-weight: 700; }

.card-side {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
}

.amount { font-weight: 700; font-variant-numeric: tabular-nums; }

.badge {
  font-size: 0.66rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-draft { background: var(--draft-bg); color: var(--draft-text); }
.badge-sent { background: var(--sent-bg); color: var(--sent-text); }
.badge-paid { background: var(--paid-bg); color: var(--paid-text); }
.badge-overdue { background: var(--danger-bg); color: var(--danger-text); }

.empty { color: var(--muted); }

.history-filters { margin-bottom: 1.2rem; }

.history-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--surface);
  border-radius: 12px;
  padding: 0.6rem 0.9rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
  font-size: 0.88rem;
}

.history-date { color: var(--muted); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.history-client { flex: 1; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.2rem;
}

.pagination .btn-secondary { padding: 0.5rem 0.9rem; }

.form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.88rem;
  font-weight: 600;
}

input, textarea {
  font-size: 1rem;
  padding: 0.7rem 0.8rem;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-tint);
}

.btn-primary, .btn-secondary {
  font-size: 1rem;
  font-weight: 700;
  padding: 0.8rem 1rem;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  transition: transform 0.1s ease, opacity 0.1s ease;
}

.btn-primary:active, .btn-secondary:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-text);
  width: 100%;
  box-shadow: 0 6px 16px rgba(216, 82, 17, 0.28);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.btn-secondary:disabled {
  opacity: 0.45;
  cursor: default;
}

.button-row {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.4rem;
}

.button-row form { margin: 0; }
.button-row button { width: 100%; }

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.2rem;
  padding: 1rem;
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  font-size: 0.92rem;
}

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 0.5rem !important;
}

.checkbox-label input {
  width: auto;
  padding: 0;
}

.voice-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2.5rem 1rem;
}

.mic-btn {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: var(--primary-text);
  font-size: 2.4rem;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(216, 82, 17, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.mic-btn:active {
  transform: scale(0.95);
}

.mic-btn.recording {
  animation: pulse 1.2s infinite;
  background: var(--danger-text);
  box-shadow: 0 8px 20px rgba(179, 39, 30, 0.4);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(179, 39, 30, 0.5); }
  70% { box-shadow: 0 0 0 18px rgba(179, 39, 30, 0); }
  100% { box-shadow: 0 0 0 0 rgba(179, 39, 30, 0); }
}

.voice-result {
  background: var(--surface);
  border-radius: 16px;
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

.voice-action {
  font-weight: 700;
  margin-top: 0.5rem;
}