/* ===========================
   LEDGER — EXPENSE TRACKER
   Light editorial aesthetic
   =========================== */

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

:root {
  --bg: #f5f3ee;
  --surface: #ffffff;
  --surface-2: #faf9f6;
  --border: #e8e4db;
  --border-dark: #d4cec2;
  --accent: #1a1a1a;
  --accent-green: #2d6a4f;
  --accent-red: #c0392b;
  --text-primary: #1a1a1a;
  --text-secondary: #7a7368;
  --text-muted: #b5afa5;
  --sidebar-bg: #1c1c1c;
  --sidebar-text: #e8e4db;
  --sidebar-muted: #8a8580;
  --sidebar-hover: rgba(255,255,255,0.06);
  --sidebar-active: rgba(255,255,255,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Figtree', sans-serif;
  --shadow: 0 1px 3px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.1);
  --sidebar-w: 240px;
}

html, body { height: 100%; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  display: flex;
  overflow: hidden;
}

/* ===========================
   SIDEBAR
   =========================== */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
  height: 100vh;
  position: sticky;
  top: 0;
}

.sidebar-top { padding: 28px 20px; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 36px;
}
.brand-icon {
  font-size: 1.5rem;
  color: #d4af7a;
  line-height: 1;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--sidebar-text);
  letter-spacing: -0.5px;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 4px; }

.nav-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border: none;
  background: transparent;
  color: var(--sidebar-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-align: left;
  width: 100%;
}
.nav-btn i { width: 16px; text-align: center; font-size: 0.85rem; }
.nav-btn:hover { background: var(--sidebar-hover); color: var(--sidebar-text); }
.nav-btn.active { background: var(--sidebar-active); color: #ffffff; font-weight: 600; }

/* Sidebar Summary */
.sidebar-summary {
  padding: 20px;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.summary-label {
  font-size: 0.72rem;
  color: var(--sidebar-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.summary-amount {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  color: #d4af7a;
  margin-bottom: 16px;
  line-height: 1.1;
}
.summary-divider {
  height: 1px;
  background: rgba(255,255,255,0.07);
  margin-bottom: 14px;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--sidebar-muted);
  margin-bottom: 8px;
}
.summary-row strong { color: var(--sidebar-text); font-weight: 600; }

/* Mobile bar (hidden on desktop) */
.mobile-bar { display: none; }

/* ===========================
   MAIN CONTENT
   =========================== */
.main {
  flex: 1;
  overflow-y: auto;
  height: 100vh;
  padding: 36px 40px;
  scroll-behavior: smooth;
}

.view { display: none; animation: fadeIn 0.35s ease; }
.view.active { display: block; }

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

/* ===========================
   VIEW HEADER
   =========================== */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}
.view-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.1;
}
.view-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 4px;
}
.header-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ===========================
   STAT BOXES
   =========================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}
.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-box:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.stat-icon-wrap {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--icon-color);
  display: flex; align-items: center; justify-content: center;
  color: var(--icon-fg);
  font-size: 1rem;
  flex-shrink: 0;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}
.stat-value--sm { font-size: 1rem; }

/* ===========================
   CHARTS
   =========================== */
.charts-row {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  margin-bottom: 28px;
}
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.chart-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

/* Donut Chart */
.donut-wrap {
  position: relative;
  width: 180px;
  height: 180px;
  margin: 0 auto 16px;
}
.donut-wrap canvas { position: relative; z-index: 1; }
.donut-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.donut-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.donut-value {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2px;
}

/* Legend */
.legend { display: flex; flex-direction: column; gap: 7px; }
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-item span:last-child {
  margin-left: auto;
  font-weight: 600;
  color: var(--text-primary);
}

/* Bar Chart */
.bar-wrap { position: relative; height: 200px; }
.bar-wrap canvas { width: 100% !important; height: 100% !important; }

/* ===========================
   SECTION HEADER
   =========================== */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}
.link-btn {
  background: none; border: none;
  color: var(--accent-green);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}
.link-btn:hover { text-decoration: underline; }

/* ===========================
   EXPENSE LIST
   =========================== */
.expense-list { display: flex; flex-direction: column; gap: 8px; }

.expense-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.18s, box-shadow 0.18s;
  animation: slideIn 0.3s ease both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: translateX(0); }
}
.expense-item:hover {
  transform: translateX(3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}

.exp-emoji {
  font-size: 1.5rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-2);
  border-radius: 10px;
  flex-shrink: 0;
}

.exp-info { flex: 1; min-width: 0; }
.exp-desc {
  font-weight: 600;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.exp-meta {
  font-size: 0.77rem;
  color: var(--text-secondary);
  margin-top: 2px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.exp-cat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1px 8px;
}

.exp-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.exp-amount {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-red);
}
.exp-delete {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 0.85rem;
  transition: background 0.15s, color 0.15s;
}
.exp-delete:hover { background: #fdecea; color: var(--accent-red); }

/* ===========================
   EMPTY STATE
   =========================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }

/* ===========================
   ADD EXPENSE FORM
   =========================== */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 24px;
}
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group--wide { grid-column: span 2; }

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; }

.form-input {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--surface);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(26,26,26,0.07);
}
.form-input::placeholder { color: var(--text-muted); }

.amount-input-wrap { position: relative; }
.currency-symbol {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-secondary);
  pointer-events: none;
}
.amount-input { padding-left: 30px; font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; }

.select-wrap { position: relative; }
.form-select { appearance: none; padding-right: 36px; cursor: pointer; }
.select-arrow {
  position: absolute;
  right: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 0.75rem;
  pointer-events: none;
}

.form-textarea { resize: vertical; min-height: 80px; }

.form-error {
  background: #fdecea;
  border: 1px solid #f5c6c6;
  color: var(--accent-red);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ===========================
   BUTTONS
   =========================== */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 24px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: #333; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 20px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: border-color 0.2s, color 0.2s;
}
.btn-secondary:hover { border-color: var(--border-dark); color: var(--text-primary); }

.btn-clear {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  cursor: pointer;
  display: flex; align-items: center; gap: 6px;
  transition: all 0.2s;
}
.btn-clear:hover { border-color: var(--accent-red); color: var(--accent-red); background: #fdecea; }

.btn-danger {
  background: var(--accent-red);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 20px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-danger:hover { background: #a93226; }

/* ===========================
   QUICK CATEGORY CHIPS
   =========================== */
.quick-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
}
.quick-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.category-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: 30px;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.18s;
  display: flex; align-items: center; gap: 6px;
}
.chip:hover { border-color: var(--accent); background: var(--accent); color: #fff; }
.chip.active { border-color: var(--accent); background: var(--accent); color: #fff; }

/* ===========================
   FILTER & SEARCH
   =========================== */
.filter-select {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-primary);
  background: var(--surface);
  outline: none;
  cursor: pointer;
  appearance: none;
  padding-right: 28px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%237a7368'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 6px center;
  background-size: 18px;
  transition: border-color 0.2s;
}
.filter-select:focus { border-color: var(--accent); }

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-wrap i {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  font-size: 0.82rem;
  pointer-events: none;
}
.search-input {
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px 8px 34px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-primary);
  background: var(--surface);
  outline: none;
  transition: border-color 0.2s;
  width: 180px;
}
.search-input:focus { border-color: var(--accent); }

/* ===========================
   TOAST
   =========================== */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===========================
   MODAL
   =========================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 380px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  text-align: center;
}
.modal-icon { font-size: 2.5rem; margin-bottom: 12px; }
.modal h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.modal p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.6; }
.modal-actions { display: flex; gap: 12px; justify-content: center; }

/* ===========================
   UTILITIES
   =========================== */
.hidden { display: none !important; }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 900px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  body { flex-direction: column; overflow: auto; }
  .sidebar { display: none; }
  .mobile-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: var(--sidebar-bg);
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .mobile-bar .brand-name { color: #e8e4db; }
  .mobile-nav { display: flex; gap: 4px; }
  .mobile-btn {
    background: transparent;
    border: none;
    color: var(--sidebar-muted);
    font-size: 1.1rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
  }
  .mobile-btn.active { color: #fff; background: var(--sidebar-active); }
  .main { height: auto; padding: 20px 16px; }
  .stats-row { grid-template-columns: 1fr 1fr; }
  .form-group--wide { grid-column: span 1; }
  .form-grid { grid-template-columns: 1fr; }
  .view-header { flex-direction: column; align-items: flex-start; }
  .header-actions { width: 100%; }
  .search-input { width: 120px; }
}