/* YM Brain — Apple Dark Theme | v1 */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-card: #1a1a1a;
    --bg-card-hover: #222222;
    --bg-input: #111111;
    --border-color: #2a2a2a;
    --border-light: #333333;
    --text-primary: #f5f5f5;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-dim: rgba(59, 130, 246, 0.15);
    --success: #22c55e;
    --success-dim: rgba(34, 197, 94, 0.15);
    --warning: #f59e0b;
    --warning-dim: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-dim: rgba(239, 68, 68, 0.15);
    --p0-color: #ef4444;
    --p1-color: #f59e0b;
    --p2-color: #3b82f6;
    --p3-color: #6b7280;
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    --radius: 12px;
    --radius-sm: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-family); background: var(--bg-primary); color: var(--text-primary); font-size: 14px; line-height: 1.5; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ---- NAV ---- */
.nav { background: var(--bg-secondary); border-bottom: 1px solid var(--border-color); padding: 0 24px; display: flex; align-items: center; height: 56px; gap: 32px; position: sticky; top: 0; z-index: 100; }
.nav-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 600; color: var(--text-primary); }
.nav-brain { color: var(--accent); }
.nav-links { display: flex; gap: 4px; }
.nav-links a { color: var(--text-secondary); padding: 8px 14px; border-radius: var(--radius-sm); font-size: 14px; transition: all 0.15s; }
.nav-links a.active, .nav-links a:hover { color: var(--text-primary); background: var(--bg-card); }
.nav-version { margin-left: auto; color: var(--text-muted); font-size: 12px; background: var(--bg-card); padding: 4px 10px; border-radius: 20px; }

/* ---- LAYOUT ---- */
.main { max-width: 1400px; margin: 0 auto; padding: 24px; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.page-title { font-size: 24px; font-weight: 600; }
.section-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }

/* ---- BUTTONS ---- */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; border: none; cursor: pointer; transition: all 0.15s; font-family: var(--font-family); }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-secondary:hover { background: var(--bg-card-hover); }
.btn-danger { background: var(--danger-dim); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: white; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; font-weight: 600; }

/* ---- FORMS ---- */
.form-input, .form-select, .form-textarea {
    width: 100%; background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); padding: 10px 14px; color: var(--text-primary);
    font-size: 14px; font-family: var(--font-family); outline: none; transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.search-input {
    width: 100%; background: var(--bg-secondary); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 14px 18px 14px 44px; color: var(--text-primary);
    font-size: 15px; outline: none; transition: border-color 0.2s;
}
.search-input:focus { border-color: var(--accent); }
.search-input::placeholder { color: var(--text-muted); }
.search-wrap { position: relative; margin-bottom: 24px; }
.search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 16px; }
.filter-row { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.filter-select { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 8px 12px; color: var(--text-primary); font-size: 13px; outline: none; font-family: var(--font-family); }

/* ---- CARDS ---- */
.card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 20px; }
.card:hover { background: var(--bg-card-hover); }

/* ---- STAT CARDS ---- */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 20px; }
.stat-value { font-size: 32px; font-weight: 700; margin-bottom: 4px; }
.stat-label { color: var(--text-secondary); font-size: 13px; }

/* ---- BADGES ---- */
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 500; }
.badge-memory { background: var(--accent-dim); color: var(--accent); }
.badge-decision { background: var(--warning-dim); color: var(--warning); }
.badge-rule { background: var(--danger-dim); color: var(--danger); }
.badge-preference { background: var(--success-dim); color: var(--success); }
.badge-idea { background: rgba(168, 85, 247, 0.15); color: #a855f7; }
.badge-insight { background: rgba(6, 182, 212, 0.15); color: #06b6d4; }
.badge-world { background: var(--bg-secondary); color: var(--text-secondary); border: 1px solid var(--border-color); }
.badge-sm { padding: 1px 6px; border-radius: 4px; font-size: 10px; }
.badge-p0 { background: rgba(239,68,68,0.15); color: var(--p0-color); }
.badge-p1 { background: rgba(245,158,11,0.15); color: var(--p1-color); }
.badge-p2 { background: rgba(59,130,246,0.15); color: var(--p2-color); }
.badge-p3 { background: rgba(107,114,128,0.15); color: var(--p3-color); }
.badge-assignee { background: var(--bg-secondary); color: var(--text-secondary); border: 1px solid var(--border-color); }

/* ---- TASK SUMMARY ---- */
.task-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 32px; }
.task-status-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 16px; text-align: center; }
.task-status-card .count { font-size: 28px; font-weight: 700; }
.task-status-card .label { font-size: 12px; color: var(--text-secondary); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.task-status-card.queued { border-left: 3px solid var(--p2-color); }
.task-status-card.in-progress { border-left: 3px solid var(--warning); }
.task-status-card.done { border-left: 3px solid var(--success); }
.task-status-card.cancelled { border-left: 3px solid var(--text-muted); }

/* ---- ACTIVITY ---- */
.activity-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.activity-item { padding: 10px 0; border-bottom: 1px solid var(--border-color); display: flex; align-items: flex-start; gap: 10px; }
.activity-item:last-child { border-bottom: none; }
.activity-content { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.activity-meta { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ---- KANBAN ---- */
.kanban { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kanban-col { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 16px; min-height: 400px; }
.kanban-header { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.kanban-count { background: var(--bg-card); padding: 2px 8px; border-radius: 10px; font-size: 11px; color: var(--text-muted); }
.task-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 14px; margin-bottom: 10px; cursor: pointer; transition: background 0.15s; display: block; color: var(--text-primary); }
.task-card:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.task-handoff { font-size: 11px; color: var(--accent); font-weight: 600; margin-bottom: 6px; }
.task-title { font-size: 13px; font-weight: 500; margin-bottom: 8px; }
.task-meta-row { display: flex; gap: 6px; flex-wrap: wrap; }
.kanban-empty { color: var(--text-muted); font-size: 12px; text-align: center; padding: 40px 0; }

/* ---- SEARCH RESULTS ---- */
.result-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 10px; transition: background 0.15s; }
.result-card:hover { background: var(--bg-card-hover); }
.result-badges { display: flex; gap: 6px; margin-bottom: 8px; align-items: center; }
.result-content { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.result-meta { font-size: 11px; color: var(--text-muted); margin-top: 8px; display: flex; gap: 12px; align-items: center; }
.relevance { color: var(--accent); font-weight: 600; }
.result-count { color: var(--text-muted); font-size: 12px; margin-bottom: 12px; }

/* ---- MEMORY BROWSER ---- */
.memory-layout { display: grid; grid-template-columns: 240px 1fr; gap: 24px; }
.sidebar { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 16px; position: sticky; top: 80px; max-height: calc(100vh - 100px); overflow-y: auto; }
.sidebar-title { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.sidebar-item { display: block; padding: 8px 12px; border-radius: var(--radius-sm); color: var(--text-secondary); font-size: 13px; transition: all 0.15s; cursor: pointer; }
.sidebar-item:hover, .sidebar-item.active { background: var(--bg-card); color: var(--text-primary); }
.sidebar-count { float: right; color: var(--text-muted); font-size: 11px; }
.sidebar-divider { border-top: 1px solid var(--border-color); margin: 12px 0; }
.entry-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 10px; }
.entry-card:hover { background: var(--bg-card-hover); }
.entry-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.entry-content { font-size: 13px; color: var(--text-secondary); line-height: 1.6; white-space: pre-wrap; }
.entry-meta { font-size: 11px; color: var(--text-muted); margin-top: 10px; display: flex; gap: 12px; }
.entry-actions { display: flex; gap: 8px; }

/* ---- DETAIL PAGE ---- */
.detail-layout { max-width: 800px; }
.detail-header { margin-bottom: 24px; }
.detail-back { color: var(--text-secondary); font-size: 13px; margin-bottom: 12px; display: inline-block; }
.detail-back:hover { color: var(--text-primary); }

/* ---- LOGIN ---- */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 40px; width: 380px; text-align: center; }
.login-title { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
.login-subtitle { color: var(--text-muted); margin-bottom: 28px; font-size: 14px; }
.login-input { width: 100%; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 12px 16px; color: var(--text-primary); font-size: 15px; margin-bottom: 16px; outline: none; text-align: center; font-family: var(--font-family); }
.login-input:focus { border-color: var(--accent); }
.login-btn { width: 100%; background: var(--accent); color: white; border: none; border-radius: var(--radius-sm); padding: 12px; font-size: 15px; font-weight: 600; cursor: pointer; font-family: var(--font-family); }
.login-btn:hover { background: var(--accent-hover); }
.login-error { color: var(--danger); font-size: 13px; margin-bottom: 12px; }
.google-signin-container { display: flex; justify-content: center; margin-bottom: 20px; }
.login-divider { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.login-divider::before, .login-divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
.login-version { margin-top: 20px; color: var(--text-muted); font-size: 11px; }

/* ---- FOOTER ---- */
footer { text-align: center; padding: 24px; color: var(--text-muted); font-size: 12px; border-top: 1px solid var(--border-color); margin-top: 48px; }

/* ---- MODAL ---- */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); z-index: 200; align-items: center; justify-content: center; }
.modal-overlay.active { display: flex; }
.modal { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 24px; width: 560px; max-width: 90vw; max-height: 90vh; overflow-y: auto; }
.modal-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ---- TOAST ---- */
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 12px 20px; font-size: 13px; z-index: 300; display: none; animation: slideIn 0.2s ease; }
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.show { display: block; }
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .task-summary { grid-template-columns: repeat(2, 1fr); }
    .kanban { grid-template-columns: repeat(2, 1fr); }
    .activity-grid { grid-template-columns: 1fr; }
    .memory-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; max-height: none; }
}
@media (max-width: 640px) {
    .nav { padding: 0 12px; gap: 12px; }
    .nav-links a { padding: 6px 10px; font-size: 13px; }
    .main { padding: 16px; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .task-summary { grid-template-columns: 1fr 1fr; }
    .kanban { grid-template-columns: 1fr; }
    .filter-row { flex-direction: column; }
    .page-header { flex-direction: column; gap: 12px; align-items: flex-start; }
}