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

:root {
  --bg: #1a1a2e;
  --bg-surface: #16213e;
  --bg-card: #0f3460;
  --bg-input: #0d0d1a;
  --border: #2a2a4a;
  --text: #e2e8f0;
  --text-muted: #64748b;
  --accent: #7c3aed;
  --accent-light: #a78bfa;
  --green: #10b981;
  --red: #ef4444;
  --yellow: #f59e0b;
  --blue: #3b82f6;
  --radius: 8px;
}

[data-theme="light"] {
  --bg: #f1f5fb;
  --bg-surface: #ffffff;
  --bg-card: #e8eef8;
  --bg-input: #f8fafc;
  --border: #d1d9e6;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #7c3aed;
  --accent-light: #6d28d9;
}

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; font-size: 14px; }

/* ── Login ── */
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 24px; }
.login-card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 16px; padding: 40px; width: 100%; max-width: 380px; text-align: center; }
.login-logo { font-size: 28px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.login-logo span { color: var(--accent-light); }
.login-sub { color: var(--text-muted); font-size: 13px; margin-bottom: 32px; }
.login-field { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; color: var(--text); font-size: 15px; width: 100%; margin-bottom: 12px; outline: none; }
.login-field:focus { border-color: var(--accent-light); }
.login-btn { background: var(--accent); color: #fff; border: none; border-radius: var(--radius); padding: 12px; width: 100%; font-size: 15px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
.login-btn:hover { background: var(--accent-light); }
.login-error { color: var(--red); font-size: 13px; margin-top: 8px; }

/* ── App Shell ── */
.app { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

/* ── Top Nav ── */
.topnav { background: var(--bg-surface); border-bottom: 1px solid var(--border); padding: 0 20px; height: 52px; display: flex; align-items: center; gap: 16px; flex-shrink: 0; z-index: 100; }
.topnav-logo { font-size: 18px; font-weight: 800; color: var(--text); }
.topnav-logo span { color: var(--accent-light); }
.board-tabs { display: flex; gap: 4px; flex: 1; }
.board-tab { background: transparent; border: none; color: var(--text-muted); padding: 6px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; font-weight: 500; transition: all 0.15s; white-space: nowrap; }
.board-tab:hover { background: var(--border); color: var(--text); }
.board-tab.active { background: var(--accent); color: #fff; }
.topnav-user { color: var(--text-muted); font-size: 13px; cursor: pointer; padding: 6px 10px; border-radius: 6px; }
.topnav-user:hover { background: var(--border); }
.theme-toggle { background: transparent; border: 1px solid var(--border); border-radius: 6px; color: var(--text-muted); cursor: pointer; font-size: 15px; padding: 4px 9px; transition: all 0.15s; flex-shrink: 0; }
.theme-toggle:hover { background: var(--border); color: var(--text); }

/* ── Board Toolbar ── */
.board-toolbar { background: var(--bg-surface); border-bottom: 1px solid var(--border); padding: 8px 20px; display: flex; align-items: center; gap: 10px; flex-shrink: 0; flex-wrap: wrap; }
.btn { border: none; border-radius: 6px; padding: 6px 14px; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.15s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-light); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); color: var(--text); }
.search-input { background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 6px 12px; color: var(--text); font-size: 13px; outline: none; min-width: 180px; }
.search-input:focus { border-color: var(--accent-light); }

/* ── Board Table ── */
.board-wrap { flex: 1; overflow: auto; padding: 16px; }
.board-table { width: 100%; border-collapse: collapse; min-width: 700px; }

/* Group header */
.group-header td { padding: 8px 10px 4px; }
.group-label { display: flex; align-items: center; gap: 8px; }
.group-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; }
.group-name { font-weight: 700; font-size: 14px; }
.group-count { color: var(--text-muted); font-size: 12px; }
.group-toggle { background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 12px; padding: 2px 6px; }

/* Column headers */
.col-header { background: var(--bg-surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.col-header th { padding: 8px 10px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); text-align: left; white-space: nowrap; }
.col-header th:first-child { border-left: 4px solid transparent; padding-left: 32px; }

/* Item rows */
.item-row { border-bottom: 1px solid var(--border); transition: background 0.1s; cursor: pointer; }
.item-row:hover { background: rgba(124, 58, 237, 0.06); }
.item-row td { padding: 0; vertical-align: middle; }
.item-row td:first-child { border-left: 4px solid transparent; }
.item-row.selected td:first-child { border-left-color: var(--accent); }

.item-name-cell { display: flex; align-items: center; gap: 8px; padding: 10px 10px 10px 12px; min-width: 220px; }
.item-name-text { font-weight: 500; flex: 1; }
.msg-badge { background: var(--accent); color: #fff; font-size: 10px; font-weight: 700; border-radius: 10px; padding: 1px 6px; flex-shrink: 0; }

.cell { padding: 8px 10px; white-space: nowrap; }

/* Status badge */
.status-badge { display: inline-block; padding: 3px 10px; border-radius: 4px; font-size: 12px; font-weight: 600; }
.s-working { background: #1d4ed8; color: #bfdbfe; }
.s-done { background: #065f46; color: #a7f3d0; }
.s-waiting-start { background: #713f12; color: #fde68a; }
.s-waiting-customer { background: #7c2d12; color: #fed7aa; }
.s-hold { background: #374151; color: #9ca3af; }
.s-ongoing { background: #1e3a5f; color: #93c5fd; }
.s-future { background: #1c1c2e; color: #a78bfa; }
.s-quarterly { background: #14532d; color: #86efac; }
.s-grabs { background: #451a03; color: #fcd34d; }

/* Avatar chips */
.avatar-group { display: flex; gap: -4px; }
.avatar { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 9px; font-weight: 700; color: #fff; border: 2px solid var(--bg); flex-shrink: 0; margin-right: -6px; }

/* Add item row */
.add-row td { padding: 6px 10px 12px 36px; }
.add-item-btn { background: transparent; border: none; color: var(--text-muted); font-size: 13px; cursor: pointer; padding: 4px 8px; border-radius: 4px; }
.add-item-btn:hover { background: var(--border); color: var(--text); }

/* Subitem indentation */
.subitem-row td:first-child { padding-left: 32px !important; }
.subitem-row .item-name-cell { padding-left: 24px; }

/* ── Item Detail Panel ── */
.panel-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200; opacity: 0; pointer-events: none; transition: opacity 0.2s; }
.panel-overlay.open { opacity: 1; pointer-events: all; }
.item-panel { position: fixed; right: 0; top: 0; bottom: 0; width: min(600px, 100vw); background: var(--bg-surface); border-left: 1px solid var(--border); z-index: 201; transform: translateX(100%); transition: transform 0.25s; display: flex; flex-direction: column; overflow: hidden; }
.item-panel.open { transform: translateX(0); }

.panel-header { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: flex-start; gap: 12px; flex-shrink: 0; }
.panel-title-input { background: transparent; border: none; color: var(--text); font-size: 18px; font-weight: 700; flex: 1; outline: none; resize: none; padding: 0; }
.panel-close { background: transparent; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; padding: 2px 6px; border-radius: 4px; flex-shrink: 0; }
.panel-close:hover { background: var(--border); }

.panel-fields { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 16px; flex-shrink: 0; }
.field-group { display: flex; flex-direction: column; gap: 4px; min-width: 120px; }
.field-label { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.field-value select, .field-value input[type="text"], .field-value input[type="number"], .field-value input[type="date"] {
  background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 6px 10px; color: var(--text); font-size: 13px; outline: none; width: 100%;
}
.field-value select:focus, .field-value input:focus { border-color: var(--accent-light); }

/* Messages */
.panel-messages { flex: 1; overflow-y: auto; padding: 16px 20px; display: flex; flex-direction: column; gap: 12px; }
.panel-messages::-webkit-scrollbar { width: 4px; }
.panel-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.msg-bubble { display: flex; flex-direction: column; gap: 4px; }
.msg-meta { display: flex; align-items: center; gap: 8px; }
.msg-author { font-weight: 600; font-size: 13px; }
.msg-time { font-size: 11px; color: var(--text-muted); }
.msg-body { background: var(--bg-card); border-radius: 0 8px 8px 8px; padding: 10px 14px; font-size: 14px; line-height: 1.5; word-break: break-word; }
.msg-attachments { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.attachment-chip { display: flex; align-items: center; gap: 6px; background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 5px 10px; font-size: 12px; color: var(--accent-light); cursor: pointer; text-decoration: none; }
.attachment-chip:hover { border-color: var(--accent-light); }
.attachment-icon { font-size: 14px; }

/* Message input */
.panel-input { padding: 16px 20px; border-top: 1px solid var(--border); flex-shrink: 0; }
.msg-composer { background: var(--bg-input); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.msg-composer.drag-over { border-color: var(--accent-light); background: rgba(124,58,237,0.08); }
.msg-textarea { width: 100%; background: transparent; border: none; color: var(--text); padding: 12px 14px; font-size: 14px; resize: none; outline: none; min-height: 72px; font-family: inherit; }
.msg-composer-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-top: 1px solid var(--border); }
.composer-name { background: transparent; border: 1px solid var(--border); border-radius: 4px; color: var(--text); font-size: 12px; padding: 4px 8px; outline: none; }
.composer-name:focus { border-color: var(--accent-light); }
.attach-btn { background: transparent; border: 1px solid var(--border); border-radius: 4px; color: var(--text-muted); padding: 4px 10px; cursor: pointer; font-size: 13px; }
.attach-btn:hover { background: var(--border); }
.send-btn { background: var(--accent); color: #fff; border: none; border-radius: 4px; padding: 4px 14px; font-size: 13px; font-weight: 600; cursor: pointer; margin-left: auto; }
.send-btn:hover { background: var(--accent-light); }
.send-btn:disabled { background: var(--border); color: var(--text-muted); cursor: not-allowed; }
.pending-files { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px 0; }
.pending-file { display: flex; align-items: center; gap: 4px; background: var(--border); border-radius: 4px; padding: 3px 8px; font-size: 12px; }
.pending-file button { background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 14px; padding: 0 2px; }

/* ── Edit modal ── */
.modal-bg { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 300; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-bg.open { display: flex; }
.modal { background: var(--bg-surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px; width: 100%; max-width: 480px; }
.modal h3 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.modal-field { margin-bottom: 14px; }
.modal-field label { display: block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 4px; }
.modal-field input, .modal-field select, .modal-field textarea {
  width: 100%; background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; color: var(--text); font-size: 14px; outline: none; font-family: inherit;
}
.modal-field input:focus, .modal-field select:focus, .modal-field textarea:focus { border-color: var(--accent-light); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }
.btn-danger { background: #991b1b; color: #fff; }
.btn-danger:hover { background: var(--red); }

/* ── Automations ── */
.auto-builder { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.auto-word { font-size: 13px; color: var(--text-muted); white-space: nowrap; }
.auto-select { background: var(--bg-input); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; color: var(--text); font-size: 13px; outline: none; }
.auto-select:focus { border-color: var(--accent-light); }
.automation-row { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--bg-card); border-radius: 8px; margin-bottom: 6px; }
.automation-row.disabled { opacity: 0.5; }
.auto-toggle { flex-shrink: 0; }
.auto-toggle input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; accent-color: var(--accent); }
.auto-desc { flex: 1; font-size: 13px; line-height: 1.4; }
.auto-desc strong { color: var(--accent-light); }
.auto-delete { background: transparent; border: none; color: var(--text-muted); cursor: pointer; font-size: 16px; padding: 2px 6px; border-radius: 4px; flex-shrink: 0; }
.auto-delete:hover { background: var(--border); color: var(--red); }

/* ── Add-option button ── */
.field-select-row { display: flex; align-items: center; gap: 6px; }
.field-select-row select { flex: 1; }
.add-opt-btn { flex-shrink: 0; width: 24px; height: 24px; padding: 0; border: 1px solid var(--border); border-radius: 5px; background: var(--bg-card); color: var(--text-muted); font-size: 16px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.add-opt-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── People Picker ── */
.people-picker { display: flex; gap: 16px; flex-wrap: wrap; }
.pp-group { flex: 1; min-width: 130px; }
.pp-group-label { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; color: var(--accent-light); margin-bottom: 6px; padding-bottom: 4px; border-bottom: 1px solid var(--border); }
.pp-row { display: flex; align-items: center; gap: 7px; padding: 4px 2px; cursor: pointer; border-radius: 4px; }
.pp-row:hover { background: var(--border); }
.pp-check { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; flex-shrink: 0; }
.pp-name { font-size: 13px; }

/* ── Toast ── */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: #1e293b; border: 1px solid var(--border); border-radius: 8px; padding: 10px 20px; font-size: 13px; z-index: 9999; opacity: 0; transition: opacity 0.2s; pointer-events: none; }
.toast.show { opacity: 1; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .topnav { padding: 0 12px; }
  .board-toolbar { padding: 8px 12px; }
  .board-wrap { padding: 8px; }
  .item-panel { width: 100vw; }
  .panel-fields { gap: 12px; }
  .field-group { min-width: 100%; }
  .board-tabs { overflow-x: auto; }
}