@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Syne:wght@400;600;700;800&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button, input, select, textarea { touch-action: manipulation; }

:root {
  --bg: #0c0c0d;
  --surface: #141416;
  --surface2: #1c1c1f;
  --surface3: #242427;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.13);
  --text: #f0ede8;
  --text2: #a8a49e;
  --muted: #5a5854;
  --accent: #e8c547;
  --accent-dim: rgba(232,197,71,0.12);
  --red: #f87171;
  --red-dim: rgba(248,113,113,0.12);
  --green: #5de89a;
  --purple: #a78bfa;
  --font-d: 'Syne', sans-serif;
  --font-m: 'DM Mono', monospace;
  --radius: 10px;
  --radius-lg: 14px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-d);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 4px; }

/* ── Layout ── */
.app-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .sidebar.open { display: flex; position: fixed; inset: 0; z-index: 100; width: 260px; }
  .mobile-bar { display: flex !important; }
}

/* ── Sidebar ── */
.sidebar {
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.sidebar-logo {
  padding: 0 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo h1 {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.sidebar-logo span {
  font-family: var(--font-m);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.nav-section {
  padding: 1rem 0.75rem 0.5rem;
}

.nav-section-label {
  font-size: 0.6rem;
  font-family: var(--font-m);
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0 0.5rem;
  margin-bottom: 0.4rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text2);
  transition: background 0.15s, color 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: var(--surface2); color: var(--text); }
.nav-item .nav-icon { font-size: 1rem; width: 20px; text-align: center; }
.nav-item .nav-badge {
  margin-left: auto;
  font-size: 0.6rem;
  font-family: var(--font-m);
  background: var(--surface3);
  color: var(--text2);
  padding: 1px 6px;
  border-radius: 20px;
}

.nav-item .cat-pill {
  margin-left: auto;
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-footer {
  margin-top: auto;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.65rem;
  font-family: var(--font-m);
  color: var(--muted);
  text-align: center;
}

/* ── Mobile bar ── */
.mobile-bar {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 50;
}

.mobile-bar button {
  background: none; border: none; color: var(--text); font-size: 1.3rem; cursor: pointer;
}

/* ── Main content ── */
.main-content {
  min-height: 100vh;
  overflow-y: auto;
}

.page { display: none; }
.page.active { display: block; }

/* ── Page header ── */
.page-header {
  padding: 2rem 2.5rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-header h2 { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; }
.page-header p { font-size: 0.75rem; color: var(--text2); font-family: var(--font-m); margin-top: 3px; }

.page-body { padding: 2rem 2.5rem; }

@media (max-width: 600px) {
  .page-header, .page-body { padding: 1.25rem 1rem; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.75rem 1.15rem;
  min-height: 44px;
  border-radius: var(--radius);
  font-family: var(--font-d);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  border: 1px solid transparent;
}

.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { opacity: 0.88; }
.btn-ghost { background: none; border-color: var(--border2); color: var(--text2); }
.btn-ghost:hover { background: var(--surface2); color: var(--text); }
.btn-danger { background: var(--red-dim); border-color: var(--red); color: var(--red); }
.btn-accent { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }

/* ── Total bar ── */
.total-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.total-bar .t-label { font-size: 0.7rem; font-family: var(--font-m); color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.total-bar .t-amount { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }

.budget-bars { display: flex; gap: 8px; flex-wrap: wrap; }
.budget-tag {
  font-size: 0.7rem;
  font-family: var(--font-m);
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid;
}
.budget-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.budget-toolbar .toolbar-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.budget-toolbar label {
  font-size: 0.75rem;
  color: var(--text2);
  font-family: var(--font-m);
}
.budget-toolbar select {
  max-width: 220px;
}
.budget-toolbar .toolbar-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.budget-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 12px;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  margin-bottom: 1.5rem;
}
.budget-summary.budget-alert {
  border-color: var(--red);
  background: rgba(248,113,113,0.08);
}
.budget-summary div { font-size: 0.82rem; color: var(--text2); }
.budget-summary strong { color: var(--text); }
.budget-meter {
  margin-bottom: 1.5rem;
}
.meter-track {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: var(--surface3);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  transition: width 0.3s ease;
}
.meter-over {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  background: rgba(248,113,113,0.5);
}
.meter-labels {
  margin-top: 0.75rem;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--text2);
  font-family: var(--font-m);
}
.budget-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}
.chart-title {
  font-size: 0.8rem;
  font-family: var(--font-m);
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.pie-chart {
  width: 178px;
  height: 178px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  background: var(--surface3);
}
.chart-legend {
  display: grid;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text2);
}
.legend-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-empty {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}
.suggestions-grid {
  display: grid;
  gap: 0.75rem;
}
.priority-pill {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-family: var(--font-m);
  text-transform: capitalize;
  letter-spacing: 0.03em;
}
.priority-haute { background: rgba(248,113,113,0.12); color: var(--red); }
.priority-normale { background: rgba(232,197,71,0.16); color: var(--accent); }
.priority-basse { background: rgba(93,232,154,0.12); color: var(--green); }

@media (max-width: 860px) {
  .budget-grid { grid-template-columns: 1fr; }
  .budget-summary { grid-template-columns: 1fr; }
}

/* ── Items ── */
.items-grid { display: flex; flex-direction: column; gap: 6px; margin-bottom: 1.5rem; }

.item-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  animation: fadeUp 0.2s ease;
}

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

.item-row:hover { border-color: var(--border2); background: var(--surface2); }
.item-row.checked { opacity: 0.45; }

.item-checkbox {
  width: 18px; height: 18px;
  border-radius: 5px;
  border: 1.5px solid var(--border2);
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, border-color 0.15s;
  font-size: 11px;
}

.item-row.checked .item-checkbox {
  background: var(--green);
  border-color: var(--green);
  color: #000;
}

.item-icon { font-size: 1.1rem; flex-shrink: 0; }
.item-info { flex: 1; min-width: 0; }
.item-info .name { font-size: 0.88rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-info .item-meta { margin-top: 6px; }
.item-info .sub { font-size: 0.72rem; color: var(--text2); font-family: var(--font-m); margin-top: 1px; }

.item-price {
  font-family: var(--font-m);
  font-size: 0.9rem;
  font-weight: 500;
  flex-shrink: 0;
}

.item-actions { display: flex; gap: 4px; }
.item-btn {
  background: none; border: none; cursor: pointer;
  color: var(--muted); font-size: 1rem; padding: 8px 10px;
  border-radius: 8px; transition: background 0.15s, color 0.15s;
  display: flex; align-items: center; min-height: 38px;
}
.item-btn:hover { background: var(--surface3); color: var(--text); }
.item-btn.del:hover { background: var(--red-dim); color: var(--red); }
.item-btn.info:hover { background: var(--accent-dim); color: var(--accent); }

/* ── Category section ── */
.cat-section { margin-bottom: 2rem; }
.cat-header {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 0.6rem;
}
.cat-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.cat-header h3 { font-size: 0.65rem; font-family: var(--font-m); color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }
.cat-sub { font-size: 0.65rem; font-family: var(--font-m); color: var(--muted); margin-left: auto; }
.empty-cat { font-size: 0.78rem; font-family: var(--font-m); color: var(--muted); padding: 0.6rem 0.9rem; }

/* ── Add form ── */
.add-form-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
}

.add-form-wrap h3 {
  font-size: 0.7rem; font-family: var(--font-m); color: var(--muted);
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1rem;
}

.form-grid { display: grid; grid-template-columns: 1fr 110px 150px auto; gap: 8px; }
@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-grid .span-2 { grid-column: 1 / -1; }
  .item-actions { flex-wrap: wrap; justify-content: flex-end; }
  .item-btn { width: 100%; justify-content: center; }
}

input[type=text], input[type=number], select, textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-d);
  font-size: 0.83rem;
  padding: 0.6rem 0.85rem;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--muted); }
input:focus, select:focus, textarea:focus { border-color: var(--border2); }
select option { background: #1c1c1f; }
textarea { resize: vertical; min-height: 80px; }

/* ── Detail overlay ── */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.overlay.open { display: flex; }

.detail-panel {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 740px;
  max-height: 90vh;
  overflow-y: auto;
  animation: panelIn 0.2s ease;
}

@keyframes panelIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.panel-header {
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: flex-start; gap: 12px;
}
.panel-body { padding: 1.5rem 1.75rem; }

.panel-title { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; }
.panel-sub { font-size: 0.75rem; color: var(--text2); font-family: var(--font-m); margin-top: 3px; }

.panel-close {
  background: none; border: none; cursor: pointer;
  color: var(--text2); font-size: 1.2rem; padding: 4px;
  margin-left: auto; border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.panel-close:hover { background: var(--surface3); color: var(--text); }

.desc-block { margin-bottom: 1.5rem; }
.desc-block h4 { font-size: 0.65rem; font-family: var(--font-m); color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.5rem; }
.desc-block p { font-size: 0.88rem; color: var(--text2); line-height: 1.65; }

/* ── Comparison table ── */
.comp-table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}
.comp-table th {
  font-family: var(--font-m);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.comp-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  vertical-align: middle;
}
.comp-table tr.highlight td { color: var(--text); background: var(--surface2); }
.comp-table tr.highlight td:first-child { border-left: 2px solid var(--accent); }

.score-bar {
  display: flex; align-items: center; gap: 8px;
}
.score-track { flex: 1; height: 4px; background: var(--surface3); border-radius: 2px; min-width: 60px; }
.score-fill { height: 4px; border-radius: 2px; background: var(--accent); }
.score-num { font-family: var(--font-m); font-size: 0.72rem; color: var(--text2); min-width: 24px; }

.bool-yes { color: var(--green); }
.bool-no  { color: var(--muted); }

/* ── AI Chat ── */
.ai-page { padding: 0; display: flex; flex-direction: column; height: 100vh; }
.ai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.msg {
  max-width: 75%;
  animation: fadeUp 0.2s ease;
}

.msg.user { align-self: flex-end; }
.msg.assistant { align-self: flex-start; }

.msg-bubble {
  padding: 0.9rem 1.1rem;
  border-radius: 14px;
  font-size: 0.95rem;
  line-height: 1.75;
}

.msg.user .msg-bubble {
  background: var(--text);
  color: var(--bg);
  border-bottom-right-radius: 3px;
}

.msg.assistant .msg-bubble {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 3px;
}

.msg-meta {
  font-size: 0.62rem;
  font-family: var(--font-m);
  color: var(--muted);
  margin-top: 4px;
  padding: 0 4px;
}
.msg.user .msg-meta { text-align: right; }

.ai-input-bar {
  border-top: 1px solid var(--border);
  padding: 1rem 1.25rem;
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: var(--bg);
}

.ai-input-bar textarea {
  flex: 1;
  min-height: 56px;
  max-height: 180px;
  resize: none;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
}

.typing-indicator {
  display: flex; gap: 4px; align-items: center; padding: 0.75rem 1rem;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 12px; border-bottom-left-radius: 3px;
  width: fit-content;
}
.typing-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--text2);
  animation: typingBounce 1.2s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30% { transform: translateY(-5px); }
}

.ai-suggestions {
  display: flex; flex-wrap: wrap; gap: 6px; padding: 0 2rem 1rem;
}
.ai-sugg {
  font-size: 0.84rem; font-family: var(--font-m);
  border: 1px solid var(--border2); border-radius: 20px;
  padding: 10px 14px; color: var(--text2);
  cursor: pointer; background: none;
  transition: background 0.15s, color 0.15s;
  min-height: 42px;
}
.ai-sugg:hover { background: var(--surface2); color: var(--text); }

/* ── Categories page ── */
.cats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 2rem;
}

.cat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  transition: border-color 0.15s;
}
.cat-card:hover { border-color: var(--border2); }
.cat-card .cc-icon { font-size: 1.8rem; margin-bottom: 0.6rem; }
.cat-card .cc-name { font-size: 0.95rem; font-weight: 700; }
.cat-card .cc-count { font-size: 0.7rem; font-family: var(--font-m); color: var(--muted); margin-top: 3px; }
.cat-card .cc-bar { margin-top: 10px; height: 3px; background: var(--surface3); border-radius: 2px; }
.cat-card .cc-bar-fill { height: 3px; border-radius: 2px; }
.cat-card .cc-total { font-size: 0.72rem; font-family: var(--font-m); margin-top: 6px; }
.cat-card .cc-actions { display: flex; gap: 6px; margin-top: 12px; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(3px);
  z-index: 300;
  align-items: center; justify-content: center;
  padding: 1rem;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  width: 100%; max-width: 440px;
  animation: panelIn 0.18s ease;
}
.modal h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 1.25rem; }
.modal .form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 0.75rem; }
.modal .form-row label { font-size: 0.7rem; font-family: var(--font-m); color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.modal .form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 1.25rem; }

/* ── Misc ── */
.tag { display: inline-block; font-size: 0.65rem; font-family: var(--font-m); padding: 2px 8px; border-radius: 20px; }
.separator { height: 1px; background: var(--border); margin: 1.5rem 0; }

.progress-ring { --pct: 0; }

.link-btn {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.75rem; font-family: var(--font-m); color: var(--accent);
  text-decoration: none;
  transition: opacity 0.15s;
}
.link-btn:hover { opacity: 0.75; }