/* ═══════════════════════════════════════════════
   Kanbante — Dark theme design system
   ═══════════════════════════════════════════════ */

:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface2: #242836;
    --border: #2e3347;
    --text: #e2e4e9;
    --text2: #9498a4;
    --accent: #7c5cfc;
    --accent2: #5b8af7;
    --green: #10b981;
    --yellow: #f59e0b;
    --red: #ef4444;
    --radius: 10px;
    --shadow: 0 2px 12px rgba(0,0,0,0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}
header h1 { font-size: 1.25rem; font-weight: 600; }
header h1 .sep { color: var(--text2); margin: 0 8px; }
.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
nav { display: flex; gap: 10px; align-items: center; }
.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    color: var(--accent);
}
.badge.secondary { background: var(--surface2); color: var(--text2); }
.btn-sm {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    transition: all 0.15s;
}
.btn-sm:hover { background: var(--border); text-decoration: none; }

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    padding: 16px 24px 0;
    background: var(--surface);
}
.tabs button {
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text2);
    cursor: pointer;
    font-size: 0.9rem;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}
.tabs button.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.tabs button:hover { color: var(--text); }

/* Search */
.search-bar { padding: 12px 24px; background: var(--surface); }
.search-bar input {
    width: 100%;
    max-width: 400px;
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s;
}
.search-bar input:focus { border-color: var(--accent); }

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    padding: 24px;
}
.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: border-color 0.15s, box-shadow 0.15s;
    cursor: default;
}
.project-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
}
.project-card.archived { opacity: 0.5; }
.project-card.archived:hover { opacity: 0.8; }
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.org-tag {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--accent);
    font-weight: 600;
}
.date { font-size: 0.75rem; color: var(--text2); }
.project-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.project-card h3 a { color: var(--text); }
.project-card h3 a:hover { color: var(--accent2); }
.desc {
    font-size: 0.85rem;
    color: var(--text2);
    line-height: 1.4;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text2);
}
.mini-progress { display: flex; gap: 4px; }
.chip {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* ── Kanban Board ────────────────────────────── */
.board-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}
.kanban-board {
    display: flex;
    gap: 0;
    flex: 1;
    overflow-x: auto;
    padding: 20px;
}
.kanban-column {
    min-width: 280px;
    max-width: 340px;
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border-radius: var(--radius);
    margin-right: 12px;
    border: 1px solid var(--border);
}
.column-header {
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--radius) var(--radius) 0 0;
}
.column-title { font-weight: 600; font-size: 0.9rem; }
.column-count {
    background: var(--surface2);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text2);
}
.column-cards {
    flex: 1;
    padding: 8px;
    min-height: 120px;
    overflow-y: auto;
}

/* Cards */
.kanban-card {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 8px;
    cursor: grab;
    transition: box-shadow 0.15s, transform 0.15s;
}
.kanban-card:hover { box-shadow: var(--shadow); }
.kanban-card:active { cursor: grabbing; }
.kanban-card.dragging { opacity: 0.5; transform: rotate(2deg); }
.card-id {
    font-size: 0.7rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 4px;
}
.card-title {
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 6px;
}
.card-labels { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 8px; }
.label-tag {
    padding: 1px 8px;
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 600;
}
.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--text2);
}
.avatar { width: 20px; height: 20px; border-radius: 50%; }

/* Notes panel */
.notes-panel {
    width: 280px;
    background: var(--surface);
    border-left: 1px solid var(--border);
    padding: 20px;
    display: flex;
    flex-direction: column;
}
.notes-panel h3 { font-size: 0.9rem; margin-bottom: 12px; }
.notes-panel textarea {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 12px;
    font-size: 0.85rem;
    font-family: inherit;
    resize: none;
    outline: none;
}
.notes-panel textarea:focus { border-color: var(--accent); }
.btn-save {
    margin-top: 10px;
    padding: 10px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: opacity 0.15s;
}
.btn-save:hover { opacity: 0.9; }

/* Footer */
footer {
    padding: 12px 24px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text2);
    display: flex;
    justify-content: space-between;
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: 8px;
    background: var(--green);
    color: white;
    font-size: 0.85rem;
    box-shadow: var(--shadow);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text2); }

/* Toast error variant */
.toast.error { background: var(--red); }

/* Board toolbar (filters + create) */
.board-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    padding: 12px 24px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.board-toolbar input[type="text"],
.board-toolbar select {
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    outline: none;
}
.board-toolbar input[type="text"]:focus,
.board-toolbar select:focus { border-color: var(--accent); }
.board-toolbar form { display: flex; gap: 8px; flex: 1; min-width: 260px; }
.board-toolbar form input { flex: 1; }
.btn-inline { margin-top: 0; padding: 9px 18px; }
.card-id a { color: var(--text2); }
.card-id a:hover { color: var(--accent2); }

/* Focus view */
.focus-main { padding: 24px; max-width: 1100px; width: 100%; margin: 0 auto; }
.focus-intro { color: var(--text2); margin-bottom: 20px; }
.focus-empty { font-size: 1.05rem; padding: 32px 0; }
.focus-group { margin-bottom: 28px; }
.focus-group h2 { font-size: 1.05rem; margin-bottom: 12px; display: flex; gap: 10px; align-items: center; }
.focus-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.focus-card { margin-bottom: 0; cursor: default; }

/* Error page */
.error-main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 24px; }
.error-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    max-width: 560px;
    text-align: center;
}
.error-box h2 { margin-bottom: 12px; }
.error-box p { color: var(--text2); margin-bottom: 16px; line-height: 1.5; }

/* Aging badges + WIP over-limit */
.age-badge {
    background: color-mix(in srgb, var(--yellow) 18%, transparent);
    color: var(--yellow);
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 600;
}
.age-badge.stale {
    background: color-mix(in srgb, var(--red) 18%, transparent);
    color: var(--red);
}
.column-count.over {
    background: color-mix(in srgb, var(--red) 20%, transparent);
    color: var(--red);
    font-weight: 700;
}

/* Card detail drawer */
.detail-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 200;
}
.card-detail {
    position: fixed; top: 0; right: 0;
    width: min(480px, 94vw); height: 100vh;
    background: var(--surface);
    border-left: 1px solid var(--border);
    z-index: 201;
    padding: 20px;
    overflow-y: auto;
    box-shadow: var(--shadow);
}
.detail-head { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; }
.detail-head .btn-sm { margin-left: auto; }
.card-detail h2 { font-size: 1.15rem; line-height: 1.35; margin-bottom: 8px; }
.detail-meta { color: var(--text2); font-size: 0.85rem; margin-bottom: 10px; }
.detail-body {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    font-size: 0.9rem;
    line-height: 1.55;
    margin: 12px 0;
    word-break: break-word;
}
.detail-body p { margin-bottom: 10px; }
.detail-body pre { background: var(--surface2); padding: 10px; border-radius: 6px; overflow-x: auto; }
.detail-body code { font-size: 0.82rem; }
.detail-empty { color: var(--text2); font-style: italic; }
.detail-comments-title { font-size: 0.95rem; margin: 16px 0 10px; }
.comment {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 8px;
}
.comment-head { font-size: 0.75rem; color: var(--text2); margin-bottom: 6px; }
.comment-body { font-size: 0.88rem; line-height: 1.5; word-break: break-word; }
#comment-form textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 10px;
    font-family: inherit;
    font-size: 0.88rem;
    resize: vertical;
}
.detail-foot { margin-top: 14px; font-size: 0.85rem; }

/* Activity feed */
.activity-list { display: flex; flex-direction: column; gap: 8px; }
.activity-item {
    display: flex; gap: 12px; align-items: baseline;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.9rem;
}
.activity-date { color: var(--text2); font-size: 0.78rem; margin-left: 8px; }

/* Responsive */
@media (max-width: 768px) {
    .board-container { flex-direction: column; }
    .notes-panel { width: 100%; max-height: 200px; border-left: none; border-top: 1px solid var(--border); }
    .kanban-board { flex-direction: column; }
    .kanban-column { max-width: 100%; min-width: 100%; margin-right: 0; margin-bottom: 12px; }
    .project-grid { grid-template-columns: 1fr; }
}