/* ClearNule LIFF v2 — design system
 * 3 themes via data-theme attr on <html>:
 *   "dark"  (default)
 *   "bright"
 *   "gold"  (black & gold)
 */

:root,
[data-theme="dark"] {
    --bg:           #0b1220;
    --bg-elev:      #1e293b;
    --bg-sub:       #111827;
    --text:         #e2e8f0;
    --text-muted:   #94a3b8;
    --border:       #334155;
    --accent:       #facc15;
    --accent-text:  #1f2937;
    --danger:       #ef4444;
    --success:      #10b981;
    --warn:         #f59e0b;
    --shadow:       0 4px 14px rgba(0,0,0,.5);
}

[data-theme="bright"] {
    --bg:           #fdf2f8;
    --bg-elev:      #ffffff;
    --bg-sub:       #fce7f3;
    --text:         #1f2937;
    --text-muted:   #6b7280;
    --border:       #e5e7eb;
    --accent:       #ec4899;
    --accent-text:  #ffffff;
    --danger:       #dc2626;
    --success:      #059669;
    --warn:         #d97706;
    --shadow:       0 4px 14px rgba(0,0,0,.08);
}

[data-theme="gold"] {
    --bg:           #0a0a0a;
    --bg-elev:      #18181b;
    --bg-sub:       #1c1917;
    --text:         #fef3c7;
    --text-muted:   #a8a29e;
    --border:       #44403c;
    --accent:       #d4a017;
    --accent-text:  #0a0a0a;
    --danger:       #ef4444;
    --success:      #84cc16;
    --warn:         #f59e0b;
    --shadow:       0 4px 14px rgba(0,0,0,.7);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
    background: var(--bg);
    color: var(--text);
    font:0.875rem/1.5 -apple-system, BlinkMacSystemFont, 'PingFang TC', 'Noto Sans TC', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

/* ── shell layout ─────────────────────────────────────── */
#liff-shell { display: flex; flex-direction: column; min-height: 100vh; }

#liff-header {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}
#liff-header .brand { font-weight: 700; font-size:0.9375rem; }
#liff-header .spacer { flex: 1; }
#liff-header .bell {
    position: relative; cursor: pointer; padding: 6px 8px;
    font-size:1.125rem;
}
#liff-header .bell .badge {
    position: absolute; top: 0; right: 0;
    min-width: 16px; height: 16px;
    border-radius: 8px; padding: 0 4px;
    background: var(--danger); color: #fff;
    font-size:0.625rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
#liff-header .theme-btn {
    cursor: pointer; padding: 6px 8px; font-size:1rem;
}

/* ── user card ──────────────────────────────────────── */
.user-card {
    margin: 12px 14px;
    padding: 14px;
    background: var(--bg-elev);
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex; align-items: center; gap: 12px;
}
.user-card .avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--accent); color: var(--accent-text);
    display: flex; align-items: center; justify-content: center;
    font-size:1.25rem; font-weight: 700;
}
.user-card .meta .name { font-weight: 700; font-size:1rem; }
.user-card .meta .sub  { color: var(--text-muted); font-size:0.75rem; margin-top: 2px; }

/* ── tab strip ──────────────────────────────────────── */
.tab-strip {
    display: flex; gap: 4px; padding: 0 14px;
    overflow-x: auto; scrollbar-width: none;
}
.tab-strip::-webkit-scrollbar { display: none; }
.tab-strip .tab {
    padding: 8px 14px; border-radius: 16px;
    background: var(--bg-elev); color: var(--text-muted);
    font-size:0.8125rem; cursor: pointer; white-space: nowrap;
    border: 1px solid var(--border);
}
.tab-strip .tab.active {
    background: var(--accent); color: var(--accent-text);
    border-color: var(--accent);
    font-weight: 600;
}

/* ── tile grid (launcher) ───────────────────────────── */
.tile-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 14px;
}
.tile {
    background: var(--bg-elev);
    border-radius: 12px;
    padding: 16px 8px;
    text-align: center;
    cursor: pointer;
    border: 1px solid var(--border);
    transition: transform .12s;
    position: relative;
}
.tile:active { transform: scale(0.96); }
.tile .icon { font-size:1.75rem; margin-bottom: 6px; }
.tile .label { font-size:0.8125rem; font-weight: 600; }
.tile .sub { font-size:0.6875rem; color: var(--text-muted); margin-top: 2px; }
.tile .tile-badge {
    position: absolute; top: 6px; right: 6px;
    background: var(--danger); color: #fff;
    border-radius: 8px; min-width: 16px; height: 16px;
    font-size:0.625rem; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    padding: 0 4px;
}

/* ── home approvals (待簽核 summary, above the tile grid) ─ */
#home-approvals { margin: 0 14px; }
.home-approval-skeleton {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.125rem 0.875rem;
    margin-bottom: 0.625rem;
    color: var(--text-muted);
    font-size:0.8125rem;
    text-align: center;
}
.home-approval-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.75rem 0.875rem;
    margin-bottom: 0.625rem;
    box-shadow: var(--shadow);
}
.home-approval-card.inbox { border-left: 0.25rem solid var(--warn); }
.home-approval-card.outbox { opacity: 0.92; }
.home-approval-title {
    font-size:0.875rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.home-approval-card.inbox .home-approval-title { color: var(--warn); }
.home-approval-card.outbox .home-approval-title { color: var(--text-muted); }
.home-approval-title.toggle { cursor: pointer; user-select: none; }
.home-approval-card.collapsed .home-approval-title.toggle { margin-bottom: 0; }
.hac-caret { display: inline-block; width: 1rem; font-size: 0.75rem; }
.home-approval-rows { display: flex; flex-direction: column; }
.home-approval-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.375rem 0.625rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size:0.8125rem;
}
.home-approval-row:last-child { border-bottom: none; }
.home-approval-row.clickable { cursor: pointer; }
.home-approval-row .haf-type {
    font-weight: 700;
    color: var(--accent-text);
    background: var(--accent);
    font-size:0.6875rem;
    padding: 0.125rem 0.375rem;
    border-radius: 0.375rem;
}
.home-approval-row .haf-name,
.home-approval-row .haf-serial { font-weight: 600; }
.home-approval-row .haf-date,
.home-approval-row .haf-stage { color: var(--text-muted); font-size:0.75rem; }
.home-approval-row .haf-desc {
    flex-basis: 100%;
    color: var(--text-muted);
    font-size:0.75rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.home-approval-row .haf-waiting {
    flex-basis: 100%;
    color: var(--warn);
    font-size:0.75rem;
    font-weight: 600;
}
.home-approval-row .haf-period {
    flex-basis: 100%;
    color: var(--text-muted);
    font-size:0.75rem;
}
.home-approval-more {
    text-align: center;
    margin-top: 0.5rem;
    padding: 0.5rem;
    color: var(--accent);
    font-size:0.8125rem;
    font-weight: 600;
    cursor: pointer;
}

.group-divider {
    font-size:0.6875rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 1px;
    padding: 8px 14px 4px;
}

/* ── bottom nav ─────────────────────────────────────── */
#liff-nav {
    position: sticky; bottom: 0;
    display: flex;
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding-bottom: env(safe-area-inset-bottom, 0);
}
#liff-nav .nav-btn {
    flex: 1; padding: 8px 0;
    text-align: center;
    cursor: pointer;
    font-size:0.6875rem;
    color: var(--text-muted);
}
#liff-nav .nav-btn .ic { font-size:1.125rem; }
#liff-nav .nav-btn.active { color: var(--accent); }

/* ── content area + module pages ────────────────────── */
#liff-content { flex: 1; padding-bottom: 16px; }

.liff-page-header {
    position: sticky; top: 47px; z-index: 90;
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}
.liff-page-header .back {
    background: none; border: 0; color: var(--text);
    font-size:1.375rem; padding: 4px 8px; cursor: pointer;
}
.liff-page-header h1 { margin: 0; font-size:1rem; font-weight: 700; flex: 1; }
.liff-page-body { padding: 14px; }

/* ── reusable atoms ─────────────────────────────────── */
.card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 12px;
}
.btn {
    background: var(--bg-elev);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size:0.875rem;
    font-weight: 600;
}
.btn.primary {
    background: var(--accent);
    color: var(--accent-text);
    border-color: var(--accent);
}
.btn.full { width: 100%; padding: 14px; font-size:0.9375rem; }
.btn.danger { background: var(--danger); color: #fff; border-color: var(--danger); }

.fld { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.fld label { font-size:0.75rem; color: var(--text-muted); font-weight: 600; }
.fld input, .fld select, .fld textarea {
    background: var(--bg-sub);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size:0.875rem;
    font-family: inherit;
}
.fld input:focus, .fld select:focus, .fld textarea:focus {
    outline: 2px solid var(--accent);
    border-color: transparent;
}

.toast {
    position: fixed; left: 50%; bottom: 80px;
    transform: translateX(-50%);
    background: var(--bg-elev);
    color: var(--text);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 24px;
    box-shadow: var(--shadow);
    font-size:0.8125rem;
    z-index: 1000;
    animation: toast-in .2s ease-out;
}
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.ok    { border-color: var(--success); color: var(--success); }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }

.loading {
    text-align: center; color: var(--text-muted);
    padding: 40px 20px; font-size:0.8125rem;
}

/* ── session-expired overlay ────────────────────────── */
.session-expired-overlay {
    position: fixed; inset: 0; z-index: 100000;
    background: rgba(0,0,0,.6);
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
}
.session-expired-box {
    background: var(--bg-elev);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 24px 20px;
    max-width: 320px;
    width: 100%;
    text-align: center;
}
.session-expired-box .icon { font-size: 2rem; margin-bottom: 8px; }
.session-expired-box h3 { margin: 0 0 8px; font-size: 1rem; }
.session-expired-box p { margin: 0 0 18px; font-size:0.8125rem; color: var(--text-muted); line-height: 1.5; }

/* ── notification list ──────────────────────────────── */
.notif-section { padding: 0 14px; }
.notif-section .section-title {
    font-size:0.75rem; color: var(--text-muted);
    padding: 12px 0 8px;
    text-transform: uppercase; letter-spacing: 1px;
}
.notif-row {
    display: flex; gap: 10px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
}
.notif-row .icon { font-size:1.375rem; }
.notif-row .body { flex: 1; min-width: 0; }
.notif-row .title { font-weight: 600; font-size:0.875rem; }
.notif-row .desc  { color: var(--text-muted); font-size:0.75rem; margin-top: 2px;
                    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.notif-row .time  { color: var(--text-muted); font-size:0.6875rem; margin-top: 4px; }
.notif-row.unread .title::after {
    content: ''; display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent);
    margin-left: 6px;
    vertical-align: middle;
}

/* ── responsive (max-width tablet) ──────────────────── */
@media (min-width: 600px) {
    body { max-width: 480px; margin: 0 auto; box-shadow: var(--shadow); }
    .tile-grid { grid-template-columns: repeat(4, 1fr); }
}
