:root {
  --bg: #faf7f2;
  --bg-card: #ffffff;
  --bg-card-alt: #fffdf9;
  --text-primary: #1a1208;
  --text-secondary: #7a6a52;
  --text-muted: #b0a090;
  --accent: #d4622a;
  --accent-hover: #b84e1e;
  --accent-light: #fde8dc;
  --green: #2d7a4f;
  --green-light: #d4ede0;
  --border: #ece5d8;
  --border-focus: #d4622a;
  --shadow: 0 2px 16px rgba(26,18,8,0.08);
  --shadow-hover: 0 6px 30px rgba(26,18,8,0.14);
  --radius: 18px;
  --radius-sm: 10px;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Sora', -apple-system, sans-serif;


  --cat-food: #e67e22;
  --cat-transport: #2980b9;
  --cat-fun: #8e44ad;
  --cat-other: #27ae60;


  --limit-ok: #2d7a4f;
  --limit-warn: #e67e22;
  --limit-over: #c0392b;
}

[data-theme="dark"] {
  --bg: #141009;
  --bg-card: #1e1810;
  --bg-card-alt: #221e15;
  --text-primary: #f5ede0;
  --text-secondary: #b09a7a;
  --text-muted: #6a5a42;
  --accent: #e8743a;
  --accent-hover: #f08050;
  --accent-light: #3a1f0e;
  --green: #4caf80;
  --green-light: #0e2a1a;
  --border: #2e2618;
  --border-focus: #e8743a;
  --shadow: 0 2px 20px rgba(0,0,0,0.5);
  --shadow-hover: 0 6px 32px rgba(0,0,0,0.7);
}


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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
  position: relative;
}


body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(212,98,42,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(45,122,79,0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}


.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: var(--shadow);
  transition: all 0.25s;
}
.theme-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: var(--shadow-hover);
}


.header {
  position: relative;
  z-index: 1;
  padding: 48px 24px 32px;
  text-align: center;
}
.header-inner { max-width: 720px; margin: 0 auto; }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.logo-icon {
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}
.tagline {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
}


.main {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.balance-card {
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  padding: 36px 36px 28px;
  box-shadow: 0 8px 40px rgba(212,98,42,0.35);
  position: relative;
  overflow: hidden;
}
.balance-card::after {
  content: '◈';
  position: absolute;
  right: -20px;
  top: -20px;
  font-size: 160px;
  opacity: 0.06;
  pointer-events: none;
  line-height: 1;
}
.balance-label {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.8;
  font-weight: 600;
  margin-bottom: 8px;
}
.balance-amount {
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 400;
  letter-spacing: -1px;
  margin-bottom: 4px;
  transition: all 0.3s;
}
.balance-sub {
  font-size: 13px;
  opacity: 0.7;
  margin-bottom: 24px;
}


.limit-row {
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  backdrop-filter: blur(4px);
}
.limit-label {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.8;
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}
.limit-input-wrap {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.limit-input {
  flex: 1;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border 0.2s;
}
.limit-input::placeholder { opacity: 0.6; }
.limit-input:focus { border-color: rgba(255,255,255,0.7); }

.btn-set-limit {
  background: rgba(255,255,255,0.9);
  color: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-set-limit:hover { background: #fff; transform: scale(1.04); }

.limit-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}
.limit-bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.25);
  border-radius: 99px;
  overflow: hidden;
}
.limit-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: rgba(255,255,255,0.9);
  transition: width 0.5s cubic-bezier(.34,1.56,.64,1);
  max-width: 100%;
}
.limit-bar-fill.warn { background: #ffd700; }
.limit-bar-fill.over { background: #ff6b6b; }

.limit-pct {
  font-size: 12px;
  font-weight: 700;
  opacity: 0.9;
  min-width: 36px;
  text-align: right;
}
.limit-warning {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #ffd700;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}


.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 640px) {
  .grid-two { grid-template-columns: 1fr; }
}


.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: background 0.3s, border 0.3s, box-shadow 0.3s;
}
.card-title {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--text-primary);
  margin-bottom: 22px;
  font-weight: 400;
}


.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 7px;
}
.form-group input[type="text"],
.form-group input[type="number"] {
  width: 100%;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}
.form-group input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(212,98,42,0.12);
}
.form-group input.invalid {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
}

.error-msg {
  display: none;
  font-size: 12px;
  color: #c0392b;
  margin-top: 5px;
  font-weight: 500;
}
.error-msg.show { display: block; }


.category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.pill {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 99px;
  padding: 7px 15px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}
.pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}
.pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.pill[data-value="Food"].active { background: var(--cat-food); border-color: var(--cat-food); }
.pill[data-value="Transport"].active { background: var(--cat-transport); border-color: var(--cat-transport); }
.pill[data-value="Fun"].active { background: var(--cat-fun); border-color: var(--cat-fun); }

.btn-custom-toggle {
  background: none;
  border: none;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  margin-top: 4px;
  transition: opacity 0.2s;
}
.btn-custom-toggle:hover { opacity: 0.7; }

.custom-category-row {
  display: none;
  gap: 8px;
  margin-bottom: 8px;
}
.custom-category-row.show { display: flex; }
.custom-category-row input {
  flex: 1;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: border 0.2s;
}
.custom-category-row input:focus { border-color: var(--border-focus); }
.btn-add-cat {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-add-cat:hover { background: var(--accent-hover); }


.btn-primary {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.2s;
  margin-top: 4px;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(212,98,42,0.3);
}
.btn-primary:active { transform: translateY(0); }


.chart-card { display: flex; flex-direction: column; }
.chart-wrap {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}
#expenseChart { max-height: 260px; }
.chart-empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
  pointer-events: none;
}
.chart-empty span { font-size: 40px; }
.chart-empty p { color: var(--text-muted); font-size: 14px; line-height: 1.6; }


.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}
.list-header .card-title { margin-bottom: 0; }
.list-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sort-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.sort-select {
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: border 0.2s;
}
.sort-select:focus { border-color: var(--border-focus); }

.transaction-list {
  max-height: 400px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-right: 4px;
}
.transaction-list::-webkit-scrollbar { width: 5px; }
.transaction-list::-webkit-scrollbar-track { background: transparent; }
.transaction-list::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 99px;
}


.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 40px 20px;
  text-align: center;
}
.empty-icon { font-size: 44px; }
.empty-state p { color: var(--text-muted); font-size: 15px; line-height: 1.7; }


.txn-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  transition: all 0.25s;
  animation: slideIn 0.3s cubic-bezier(.34,1.2,.64,1) both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.txn-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}
.txn-item.over-limit {
  border-color: #e74c3c;
  background: rgba(231,76,60,0.06);
}

.txn-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.txn-dot.food { background: var(--cat-food); }
.txn-dot.transport { background: var(--cat-transport); }
.txn-dot.fun { background: var(--cat-fun); }
.txn-dot.other { background: var(--cat-other); }

.txn-info { flex: 1; min-width: 0; }
.txn-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.txn-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}
.txn-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.txn-badge.food { background: rgba(230,126,34,0.14); color: var(--cat-food); }
.txn-badge.transport { background: rgba(41,128,185,0.14); color: var(--cat-transport); }
.txn-badge.fun { background: rgba(142,68,173,0.14); color: var(--cat-fun); }
.txn-badge.other { background: rgba(39,174,96,0.14); color: var(--cat-other); }

.txn-amount {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--text-primary);
  white-space: nowrap;
}

.txn-delete {
  background: none;
  border: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  transition: all 0.2s;
  flex-shrink: 0;
}
.txn-delete:hover {
  background: rgba(231,76,60,0.12);
  color: #e74c3c;
  transform: scale(1.15);
}


.over-limit-badge {
  font-size: 11px;
  color: #e74c3c;
  font-weight: 700;
  margin-left: 6px;
}


.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 24px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}


@media (max-width: 480px) {
  .header { padding: 36px 16px 24px; }
  .balance-card { padding: 28px 20px 22px; }
  .card { padding: 20px 16px; }
  .balance-amount { font-size: 32px; }
}