/* ── Cafe – Theme & Layout ── */

:root {
  --accent: #2d6a4f;
  --accent-light: #40916c;
  --accent-bg: #d8f3dc;
  --bg: #f8f9fa;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --text: #212529;
  --text-muted: #6c757d;
  --border: #dee2e6;
  --border-light: #e9ecef;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,.1);
  --radius: 10px;
  --radius-sm: 6px;
  --nav-h: 56px;
  /* badges */
  --sales: #2d6a4f;
  --inventory: #e67e22;
  --expense: #e74c3c;
  --pending: #f0ad4e;
  --completed: #2d6a4f;
  --failed: #e74c3c;
  /* chat */
  --msg-user-bg: var(--accent);
  --msg-user-text: #fff;
  --msg-bot-bg: transparent;
  --msg-bot-text: var(--text);
  --reasoning-bg: #fff8e1;
  --reasoning-border: #ffe082;
}

[data-theme="dark"] {
  --bg: #1a1a2e;
  --bg-card: #16213e;
  --bg-input: #1a1a2e;
  --text: #e0e0e0;
  --text-muted: #9e9e9e;
  --border: #2c2c54;
  --border-light: #2c2c54;
  --shadow: 0 1px 3px rgba(0,0,0,.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,.4);
  --accent-bg: #1b3a2d;
  --reasoning-bg: #2a2510;
  --reasoning-border: #5d4e0e;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .2s, color .2s;
}

/* ── Top Nav ── */
.top-nav {
  height: var(--nav-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.top-nav .logo {
  font-weight: 800; font-size: 1.3rem; color: var(--accent);
  display: flex; align-items: center; gap: 8px;
  letter-spacing: -.3px;
}
.top-nav .logo img { width: 30px; height: 30px; }
.nav-tabs { display: flex; gap: 4px; margin-left: 20px; }
.nav-tabs button {
  background: none; border: none; padding: 8px 16px; font-size: 1rem;
  color: var(--text-muted); cursor: pointer; border-radius: var(--radius-sm);
  font-weight: 500; transition: all .15s;
}
.nav-tabs button:hover { background: var(--border-light); color: var(--text); }
.nav-tabs button.active {
  background: var(--accent-bg); color: var(--accent);
  font-weight: 700;
}
.nav-right { margin-left: auto; display: flex; gap: 8px; align-items: center; }

/* Language dropdown */
.lang-select {
  padding: 5px 8px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-card); color: var(--text); font-size: .85rem;
  font-family: inherit; cursor: pointer; outline: none;
  transition: border-color .15s;
}
.lang-select:focus { border-color: var(--accent); }
.lang-select:hover { border-color: var(--accent-light); }

.icon-btn {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
  transition: all .15s;
}
.icon-btn:hover { background: var(--border-light); color: var(--text); }

/* ── Views ── */
.view { display: none; flex: 1; overflow: hidden; }
.view.active { display: flex; flex-direction: column; }

/* ═══════════════════════════════════════
   ChatGPT-style Chat View
   ═══════════════════════════════════════ */
.chat-container { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: var(--bg); }

/* Messages area — full-width scroll, centered content */
.messages {
  flex: 1; overflow-y: auto; padding: 0;
  display: flex; flex-direction: column;
  scroll-behavior: smooth;
}

/* Single message row */
.msg {
  width: 100%; padding: 20px 24px;
  display: flex; gap: 14px;
  animation: fadeIn .25s;
}
.msg.user { background: var(--bg); }
.msg.assistant { background: var(--bg-card); border-bottom: 1px solid var(--border-light); }

/* Avatar circle */
.msg-avatar {
  width: 30px; height: 30px; border-radius: 50%;
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  font-size: .8rem; font-weight: 700; margin-top: 2px;
}
.msg.user .msg-avatar { background: var(--accent); color: #fff; }
.msg.assistant .msg-avatar { background: var(--accent-bg); color: var(--accent); }

/* Message content */
.msg-content {
  flex: 1; min-width: 0;
  max-width: 768px;
}
.msg-bubble {
  padding: 0; background: none; line-height: 1.65;
  font-size: .93rem; word-break: break-word; color: var(--text);
}
.msg-bubble img { max-width: 280px; border-radius: var(--radius-sm); margin-top: 8px; }

/* Markdown in messages */
.msg-bubble h1,.msg-bubble h2,.msg-bubble h3 { margin: .7em 0 .3em; font-size: 1.05em; }
.msg-bubble h2 { font-size: 1em; }
.msg-bubble h3 { font-size: .95em; }
.msg-bubble table { width: 100%; border-collapse: collapse; margin: .6em 0; font-size: .85rem; }
.msg-bubble th, .msg-bubble td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.msg-bubble th { background: var(--border-light); font-weight: 600; }
.msg-bubble code { background: var(--border-light); padding: 2px 6px; border-radius: 4px; font-size: .87em; }
.msg-bubble pre { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; overflow-x: auto; margin: .6em 0; }
.msg-bubble pre code { background: none; padding: 0; }
.msg-bubble p { margin: .5em 0; }
.msg-bubble p:first-child { margin-top: 0; }
.msg-bubble ul, .msg-bubble ol { padding-left: 1.4em; margin: .5em 0; }
.msg-bubble hr { border: none; border-top: 1px solid var(--border); margin: .8em 0; }
.msg-bubble strong { font-weight: 600; }

/* Reasoning collapse */
.reasoning-block {
  background: var(--reasoning-bg); border: 1px solid var(--reasoning-border);
  border-radius: var(--radius-sm); padding: 0; margin-bottom: 8px; font-size: .82rem;
}
.reasoning-block summary {
  padding: 6px 10px; cursor: pointer; color: var(--text-muted); font-weight: 500;
  user-select: none;
}
.reasoning-block pre {
  padding: 8px 10px; margin: 0; white-space: pre-wrap; color: var(--text-muted);
  font-size: .82rem; border-top: 1px solid var(--reasoning-border); background: none;
  border: none;
}

/* ── Welcome Screen ── */
.chat-welcome {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 16px; padding: 48px 24px; text-align: center;
}
.welcome-icon { font-size: 3.5rem; }
.chat-welcome h2 {
  font-size: 1.6rem; font-weight: 700; color: var(--text);
  letter-spacing: -.3px;
}
.chat-welcome .welcome-sub {
  color: var(--text-muted); font-size: .95rem; max-width: 420px;
}
.suggestion-chips {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  margin-top: 12px; max-width: 540px;
}
.chip {
  padding: 10px 18px; border: 1px solid var(--border); border-radius: 20px;
  background: var(--bg-card); color: var(--text); font-size: .88rem;
  cursor: pointer; font-family: inherit; transition: all .15s;
  display: flex; align-items: center; gap: 6px; font-weight: 500;
  box-shadow: var(--shadow);
}
.chip:hover {
  border-color: var(--accent); background: var(--accent-bg);
  color: var(--accent); box-shadow: var(--shadow-md);
}

/* ── Chat Input (ChatGPT pill style) ── */
.chat-input-wrap {
  padding: 0 24px 24px; display: flex; justify-content: center;
  background: var(--bg);
}
.chat-input-box {
  max-width: 768px; width: 100%;
  display: flex; align-items: flex-end; gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 6px 8px 6px 6px;
  box-shadow: var(--shadow-md);
  transition: border-color .2s, box-shadow .2s;
}
.chat-input-box:focus-within {
  border-color: var(--accent-light);
  box-shadow: 0 4px 16px rgba(45,106,79,.12);
}
.chat-input-box textarea {
  flex: 1; resize: none; border: none;
  padding: 8px 10px; font-size: .95rem; font-family: inherit;
  background: transparent; color: var(--text);
  min-height: 24px; max-height: 140px; line-height: 1.5;
}
.chat-input-box textarea:focus { outline: none; }
.chat-input-box textarea::placeholder { color: var(--text-muted); }

.input-attach-btn {
  width: 36px; height: 36px; border-radius: 50%; border: none;
  background: transparent; color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all .15s;
}
.input-attach-btn:hover { background: var(--border-light); color: var(--text); }

.input-send-btn {
  width: 34px; height: 34px; border-radius: 50%; border: none;
  background: var(--accent); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all .15s;
}
.input-send-btn:disabled { opacity: .35; cursor: not-allowed; }
.input-send-btn:hover:not(:disabled) { background: var(--accent-light); }

/* Image preview strip */
.image-preview-bar {
  display: none; padding: 8px 24px; background: var(--bg);
  gap: 8px; align-items: center; justify-content: center;
}
.image-preview-bar.active { display: flex; }
.image-preview-bar img { height: 52px; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.image-preview-bar .remove-img {
  background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.3rem;
}

/* Drag overlay */
.drop-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(45,106,79,.15); backdrop-filter: blur(4px);
  align-items: center; justify-content: center;
}
.drop-overlay.active { display: flex; }
.drop-overlay-inner {
  background: var(--bg-card); border: 3px dashed var(--accent); border-radius: 16px;
  padding: 48px; text-align: center; font-size: 1.1rem; color: var(--accent); font-weight: 600;
}

/* Typing indicator */
.typing-indicator { display: flex; gap: 4px; padding: 4px 0; }
.typing-indicator span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--text-muted);
  animation: typingBounce .6s infinite alternate;
}
.typing-indicator span:nth-child(2) { animation-delay: .15s; }
.typing-indicator span:nth-child(3) { animation-delay: .3s; }

/* ── Dashboard View ── */
.dashboard { padding: 20px; overflow-y: auto; gap: 20px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.metric-card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow); transition: box-shadow .15s;
}
.metric-card:hover { box-shadow: var(--shadow-md); }
.metric-card .label { font-size: .78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; font-weight: 600; }
.metric-card .value { font-size: 1.5rem; font-weight: 700; margin-top: 6px; }
.metric-card .sub { font-size: .78rem; color: var(--text-muted); margin-top: 4px; }
.metric-card.sales .value { color: var(--sales); }
.metric-card.inventory .value { color: var(--inventory); }
.metric-card.expense .value { color: var(--expense); }
.metric-card.net .value { color: var(--accent); }

.section-title { font-size: 1rem; font-weight: 600; margin-top: 8px; }

/* ── Data Tables ── */
.data-section { padding: 20px; overflow-y: auto; gap: 16px; }
.filter-bar {
  display: flex; gap: 8px; flex-wrap: wrap; padding: 12px 0;
}
.filter-bar select, .filter-bar input {
  padding: 7px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: .85rem; background: var(--bg-input); color: var(--text); font-family: inherit;
}
.filter-bar select:focus, .filter-bar input:focus { outline: none; border-color: var(--accent); }
.filter-bar button {
  padding: 7px 16px; border: none; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff; font-size: .85rem; cursor: pointer;
  font-weight: 500; transition: background .15s;
}
.filter-bar button:hover { background: var(--accent-light); }
.filter-bar.compact { padding: 6px 0; }

.data-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-card); }
.data-table {
  width: 100%; border-collapse: collapse; font-size: .85rem;
}
.data-table th {
  text-align: left; padding: 10px 12px; background: var(--border-light);
  font-weight: 600; color: var(--text-muted); border-bottom: 1px solid var(--border);
  white-space: nowrap; cursor: pointer; user-select: none;
}
.data-table th:hover { color: var(--text); }
.data-table td { padding: 9px 12px; border-bottom: 1px solid var(--border-light); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--accent-bg); }
.source-cell { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .8rem; color: var(--text-muted); }

/* Badges */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: .75rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: .3px;
}
.badge.sales { background: #d8f3dc; color: #1b4332; }
.badge.inventory { background: #fdebd0; color: #7e5109; }
.badge.expense { background: #fadbd8; color: #78281f; }
.badge.pending { background: #fef9e7; color: #7d6608; }
.badge.completed { background: #d5f5e3; color: #1e8449; }
.badge.failed { background: #fadbd8; color: #c0392b; }

[data-theme="dark"] .badge.sales { background: #1b3a2d; color: #95d5b2; }
[data-theme="dark"] .badge.inventory { background: #3a2a10; color: #f0ad4e; }
[data-theme="dark"] .badge.expense { background: #3a1515; color: #f1948a; }
[data-theme="dark"] .badge.pending { background: #3a3010; color: #f0e68c; }
[data-theme="dark"] .badge.completed { background: #1b3a2d; color: #95d5b2; }
[data-theme="dark"] .badge.failed { background: #3a1515; color: #f1948a; }

/* Pagination */
.pagination {
  display: flex; gap: 8px; align-items: center; justify-content: center; padding: 12px;
}
.pagination button {
  padding: 6px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-card); color: var(--text); cursor: pointer; font-size: .83rem;
  transition: all .15s;
}
.pagination button:hover:not(:disabled) { background: var(--accent-bg); border-color: var(--accent); }
.pagination button:disabled { opacity: .4; cursor: not-allowed; }
.pagination .page-info { font-size: .83rem; color: var(--text-muted); }

/* Action links */
.action-link {
  display: inline-block; padding: 3px 8px; border-radius: var(--radius-sm);
  text-decoration: none; font-size: .78rem; cursor: pointer;
  font-weight: 500; color: var(--accent); transition: background .15s;
}
.action-link:hover { background: var(--accent-bg); text-decoration: underline; }
.action-link + .action-link { margin-left: 4px; }

/* ── File Preview Modal ── */
.file-preview-modal {
  display: none; position: fixed; inset: 0; z-index: 500;
  align-items: center; justify-content: center;
}
.file-preview-modal.active { display: flex; }
.modal-backdrop {
  position: absolute; inset: 0; background: rgba(0,0,0,.55);
}
.modal-dialog {
  position: relative; background: var(--bg-card); border-radius: var(--radius);
  box-shadow: var(--shadow-md); width: 90%; max-width: 800px; max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
  animation: fadeIn .2s;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.modal-title { font-weight: 600; font-size: .95rem; }
.modal-close {
  background: none; border: none; font-size: 1.4rem; cursor: pointer;
  color: var(--text-muted); width: 32px; height: 32px; display: flex;
  align-items: center; justify-content: center; border-radius: 50%;
  transition: background .15s;
}
.modal-close:hover { background: var(--border-light); color: var(--text); }
.modal-body {
  flex: 1; overflow: auto; padding: 16px; display: flex;
  align-items: center; justify-content: center; min-height: 200px;
}
.modal-body img { max-width: 100%; max-height: 70vh; border-radius: var(--radius-sm); }
.modal-body iframe { width: 100%; height: 70vh; border: none; border-radius: var(--radius-sm); }
.modal-body .no-preview {
  text-align: center; color: var(--text-muted); padding: 32px;
}
.modal-body .no-preview a { color: var(--accent); text-decoration: underline; }

/* Loading spinner */
.spinner {
  width: 24px; height: 24px; border: 3px solid var(--border);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin .6s linear infinite;
}

/* ── Animations ── */
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes typingBounce { to { transform: translateY(-4px); opacity: .4; } }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  html { font-size: 14px; }
  .top-nav { padding: 0 10px; }
  .nav-tabs button { padding: 6px 10px; font-size: .9rem; }
  .top-nav .logo span { display: none; }
  .metric-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .metric-card .value { font-size: 1.2rem; }
  .msg { padding: 14px 12px; }
  .chat-input-wrap { padding: 0 12px 16px; }
  .chat-welcome h2 { font-size: 1.3rem; }
  .suggestion-chips { gap: 8px; }
  .chip { padding: 8px 14px; font-size: .82rem; }
  .filter-bar { flex-direction: column; }
  .data-section { padding: 12px; }
  .dashboard { padding: 12px; }
}

/* ── Flatpickr theme overrides ── */
.flatpickr-calendar { font-family: inherit; border: 1px solid var(--border); box-shadow: var(--shadow-md); }
[data-theme="dark"] .flatpickr-calendar {
  background: var(--bg-card); border-color: var(--border);
  color: var(--text);
}
[data-theme="dark"] .flatpickr-months .flatpickr-month,
[data-theme="dark"] .flatpickr-current-month .flatpickr-monthDropdown-months,
[data-theme="dark"] .flatpickr-current-month input.cur-year { background: var(--bg-card); color: var(--text); }
[data-theme="dark"] .flatpickr-weekdays { background: var(--bg-card); }
[data-theme="dark"] span.flatpickr-weekday { color: var(--text-muted); background: var(--bg-card); }
[data-theme="dark"] .flatpickr-day { color: var(--text); }
[data-theme="dark"] .flatpickr-day:hover { background: var(--border); border-color: var(--border); }
[data-theme="dark"] .flatpickr-day.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
[data-theme="dark"] .flatpickr-day.today { border-color: var(--accent-light); }
[data-theme="dark"] .flatpickr-months .flatpickr-prev-month svg,
[data-theme="dark"] .flatpickr-months .flatpickr-next-month svg { fill: var(--text); }

/* Flatpickr footer (Clear / Today) */
.flatpickr-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 12px 8px; border-top: 1px solid var(--border);
}
.flatpickr-footer-btn {
  background: none; border: none; cursor: pointer;
  font-size: .85rem; font-weight: 600; padding: 4px 8px; border-radius: 4px;
}
.flatpickr-footer-btn.clear { color: var(--text-muted); }
.flatpickr-footer-btn.clear:hover { color: var(--expense); }
.flatpickr-footer-btn.today { color: var(--accent); }
.flatpickr-footer-btn.today:hover { background: var(--accent-bg); }
[data-theme="dark"] .flatpickr-footer { border-color: var(--border); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }