/* VI: Thư viện component dùng chung (card, nút, input, modal, toast) và giao diện từng tính năng.
EN: Shared components (card, button, input, modal, toast) and per-feature UI. */

/* ---------- Cards ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.card h3 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 15px;
    font-weight: 650;
    letter-spacing: -0.01em;
}

.card h3 i {
    font-size: 18px;
    color: var(--text-muted);
}

.card-subtitle {
    color: var(--text-muted);
    font-size: 13.5px;
    margin: calc(-1 * var(--space-2)) 0 var(--space-4);
}

.badge {
    padding: 2px 10px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.mode-work { --tone: var(--mode-work); }
.mode-short { --tone: var(--mode-short); }
.mode-long { --tone: var(--mode-long); }
.mode-due { --tone: var(--warning); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: 40px;
    padding: 0 var(--space-4);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    transition: background var(--transition), border-color var(--transition), transform var(--transition), color var(--transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--accent);
    color: var(--accent-contrast);
}

.btn-primary:hover {
    background: var(--accent-strong);
}

.btn-ghost,
.login-btn:not(.btn-primary) {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost:hover,
.login-btn:not(.btn-primary):hover {
    background: var(--surface-3);
}

.btn-block {
    width: 100%;
    margin-top: var(--space-2);
}

.icon-btn {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 19px;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}

.icon-btn:hover {
    background: var(--surface-3);
}

.icon-btn:active {
    transform: scale(0.95);
}

.icon-btn-xs { width: 28px; height: 28px; font-size: 14px; border: none; background: transparent; }
.icon-btn-sm { width: 34px; height: 34px; font-size: 16px; }

.icon-btn-lg {
    width: 72px;
    height: 72px;
    font-size: 28px;
    border: none;
    background: var(--mode, var(--accent));
    color: #fff;
    box-shadow: 0 10px 24px color-mix(in srgb, var(--mode, var(--accent)) 35%, transparent);
}

.icon-btn-lg:hover {
    background: color-mix(in srgb, var(--mode, var(--accent)) 88%, #000);
}

.icon-btn-accent {
    background: var(--accent);
    border-color: transparent;
    color: var(--accent-contrast);
}

.icon-btn-accent:hover {
    background: var(--accent-strong);
}

.text-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent);
    font-weight: 600;
    font-size: 13px;
}

.text-btn:hover {
    text-decoration: underline;
}

.chip {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition);
}

.chip:hover {
    color: var(--text);
    border-color: var(--border-strong);
}

.chip.active {
    background: var(--accent-soft);
    border-color: transparent;
    color: var(--accent);
}

/* ---------- Inputs ---------- */
input[type="text"],
input[type="url"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
    width: 100%;
    height: 42px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface-2);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

input::placeholder {
    color: var(--text-faint);
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
    background: var(--surface);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
}

/* ---------- Header: music bar & user ---------- */
.music-player-bar {
    position: relative;
    flex: 1;
    max-width: 520px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 4px 4px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: var(--surface);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.music-player-bar:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.music-bar-icon {
    color: var(--text-muted);
    font-size: 18px;
}

.music-player-bar input {
    height: 34px;
    border: none;
    background: transparent;
    padding: 0 4px;
    box-shadow: none !important;
}

.music-player-bar input:focus {
    background: transparent;
}

.music-player-bar .icon-btn {
    border: none;
}

#save-music-btn:hover {
    color: var(--mode-work);
}

#music-library-btn[aria-expanded="true"] {
    background: var(--accent-soft);
    color: var(--accent);
}

/* VI: Danh sách nhạc đã lưu, mở từ thanh nhạc trên header. EN: Saved music popover opened from the header music bar. */
.music-library {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: min(380px, calc(100vw - 32px));
    max-height: 420px;
    overflow-y: auto;
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    z-index: 70;
    animation: pop-in 160ms ease;
}

.music-library-head {
    margin-bottom: var(--space-3);
}

.music-library .empty-state {
    padding: var(--space-4) var(--space-2);
}

.user-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-controls .icon-btn {
    width: 40px;
    height: 40px;
    font-size: 18px;
}

.user-greeting {
    color: var(--text-muted);
    font-size: 14px;
    white-space: nowrap;
}

.user-greeting b {
    color: var(--text);
}

/* ---------- Today / Dashboard ---------- */
.home-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    grid-template-areas:
        "hero tasks"
        "stats stats";
    gap: var(--space-5);
}

.hero-card {
    grid-area: hero;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-8);
    background:
        radial-gradient(500px 240px at 100% 0%, var(--accent-soft), transparent 70%),
        var(--surface);
}

.hero-greeting {
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.clock-time {
    font-size: clamp(56px, 9vw, 104px);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums;
}

.clock-date {
    margin-top: var(--space-3);
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.08em;
    font-size: 13px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-8);
}

.stat-cards {
    grid-area: stats;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
}

.stat-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--tone) 15%, transparent);
    color: var(--tone);
    font-size: 22px;
}

.stat-value {
    display: block;
    font-size: 24px;
    font-weight: 750;
    letter-spacing: -0.02em;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--text-muted);
    font-size: 13px;
}

.home-tasks-card {
    grid-area: tasks;
    display: flex;
    flex-direction: column;
}

.home-task-list {
    max-height: none;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: var(--space-6) var(--space-4);
    color: var(--text-faint);
    font-size: 13.5px;
    text-align: center;
    list-style: none;
}

.empty-state i {
    font-size: 28px;
}

/* ---------- Pomodoro ---------- */
.pomo-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: var(--space-5);
    align-items: start;
}

.pomo-card {
    --mode: var(--mode-work);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-8) var(--space-6);
    transition: box-shadow 400ms ease;
}

.pomo-card[data-mode="shortBreak"] { --mode: var(--mode-short); }
.pomo-card[data-mode="longBreak"] { --mode: var(--mode-long); }

.pomo-card.is-running {
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--mode) 30%, transparent), var(--shadow-md);
}

.mode-pills {
    display: flex;
    gap: 4px;
    padding: 4px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    transition: background var(--transition), color var(--transition);
}

.stat-item .count {
    min-width: 20px;
    padding: 0 6px;
    border-radius: var(--radius-full);
    background: var(--surface-3);
    font-size: 11.5px;
    text-align: center;
}

.stat-item.active {
    background: var(--mode);
    color: #fff;
}

.stat-item.active .count {
    background: rgba(255, 255, 255, 0.25);
}

.pomo-ring {
    position: relative;
    width: min(320px, 72vw);
    aspect-ratio: 1;
}

.pomo-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.pomo-ring circle {
    fill: none;
    stroke-width: 6;
}

.ring-track {
    stroke: var(--surface-3);
}

.ring-progress {
    stroke: var(--mode);
    stroke-linecap: round;
    /* 2 * PI * r (r = 54) */
    stroke-dasharray: 339.292;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 400ms linear, stroke 400ms ease;
}

.pomo-ring-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.pomo-time-display {
    font-size: clamp(48px, 8vw, 72px);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.pomo-status {
    color: var(--mode);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.pomo-controls,
.timer-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-5);
}

.pomo-hint {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 6px 12px;
    color: var(--text-muted);
    font-size: 13.5px;
    text-align: center;
}

.pomo-hint b {
    color: var(--text);
}

.pomo-side {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* ---------- To-do ---------- */
.todo-input-group {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.todo-input-group .icon-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
}

.todo-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 360px;
    overflow-y: auto;
    margin-right: -6px;
    padding-right: 6px;
}

.todo-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 6px 6px 4px;
    border-radius: var(--radius-md);
    transition: background var(--transition);
}

.todo-item:hover {
    background: var(--surface-2);
}

.todo-item .todo-text {
    flex: 1;
    min-width: 0;
    overflow-wrap: anywhere;
    font-size: 14px;
}

.todo-item.completed .todo-text {
    color: var(--text-faint);
    text-decoration: line-through;
}

.todo-item-controls {
    display: contents;
}

.complete-btn,
.delete-btn,
.delete-music-btn,
.play-music-item-btn {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    color: var(--text-faint);
    font-size: 20px;
    transition: color var(--transition), background var(--transition), opacity var(--transition);
}

.complete-btn {
    order: -1;
}

.complete-btn:hover,
.todo-item.completed .complete-btn {
    color: var(--success);
}

.delete-btn,
.delete-music-btn {
    font-size: 17px;
    opacity: 0;
}

.todo-item:hover .delete-btn,
.music-item:hover .delete-music-btn,
.delete-btn:focus-visible,
.delete-music-btn:focus-visible {
    opacity: 1;
}

.delete-btn:hover,
.delete-music-btn:hover {
    color: var(--danger);
    background: color-mix(in srgb, var(--danger) 12%, transparent);
}

@media (hover: none) {

    .delete-btn,
    .delete-music-btn {
        opacity: 1;
    }
}

/* ---------- Settings ---------- */
.settings-card summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    list-style: none;
}

.settings-card summary::-webkit-details-marker {
    display: none;
}

.summary-caret {
    color: var(--text-muted);
    transition: transform var(--transition);
}

.settings-card[open] .summary-caret {
    transform: rotate(180deg);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.setting-item label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
}

.input-suffix {
    position: relative;
}

.input-suffix input {
    padding-right: 38px;
    font-variant-numeric: tabular-nums;
    font-weight: 600;
}

.input-suffix span {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-faint);
    font-size: 12.5px;
    pointer-events: none;
}

/* ---------- Stopwatch & Timer ---------- */
.tool-card {
    max-width: 640px;
    margin: var(--space-6) auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
    padding: var(--space-8) var(--space-6) var(--space-8);
    text-align: center;
}

.tool-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.timer-display {
    font-size: clamp(52px, 11vw, 112px);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.tool-caption {
    color: var(--text-muted);
    margin-top: calc(-1 * var(--space-2));
}

.timer-progress {
    width: 100%;
    max-width: 420px;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--surface-3);
    overflow: hidden;
}

.timer-progress span {
    display: block;
    height: 100%;
    width: 0%;
    border-radius: inherit;
    background: var(--accent);
    transition: width 400ms linear;
}

.timer-inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    width: 100%;
    max-width: 420px;
}

.timer-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.timer-field input {
    height: 52px;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.timer-field span {
    color: var(--text-faint);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.timer-presets {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
}

.timer-controls .icon-btn-lg {
    --mode: var(--accent);
}

/* ---------- About & favorite music ---------- */
.about-card-container {
    max-width: 440px;
    margin: var(--space-6) auto 0;
}

.about-card.info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    text-align: center;
    padding: var(--space-8) var(--space-6);
}

.avatar {
    display: grid;
    place-items: center;
    width: 88px;
    height: 88px;
    margin-bottom: var(--space-2);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--mode-long));
    color: #fff;
    font-size: 42px;
    box-shadow: 0 10px 30px var(--accent-soft);
}

.about-card h2 {
    font-size: 22px;
    letter-spacing: -0.02em;
}

.about-card.info p {
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.social-link {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 22px;
    transition: all var(--transition);
}

.social-link:hover {
    background: var(--accent);
    border-color: transparent;
    color: #fff;
    transform: translateY(-2px);
}

.music-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.music-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 8px 8px 8px 12px;
    border-radius: var(--radius-md);
    background: var(--surface-2);
}

.music-item-info {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.music-item-info > i {
    font-size: 24px;
    flex-shrink: 0;
}

.music-item-info .ph-youtube-logo { color: #ff3b3b; }
.music-item-info .ph-spotify-logo { color: #1db954; }

.music-item-info div {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.music-item-info span {
    font-weight: 600;
    font-size: 14px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.music-item-info a {
    color: var(--text-faint);
    font-size: 12px;
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.music-item-info a:hover {
    color: var(--accent);
}

.music-item-controls {
    display: flex;
    gap: 2px;
}

.play-music-item-btn {
    color: var(--accent);
    font-size: 18px;
}

.play-music-item-btn:hover {
    background: var(--accent-soft);
}

/* ---------- Floating music player ---------- */
.music-player-container {
    position: fixed;
    right: var(--space-6);
    bottom: var(--space-6);
    width: 360px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    z-index: 50;
    display: none;
}

.music-player-container.active {
    display: block;
    animation: view-in 220ms ease;
}

.music-player-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 6px 6px 14px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
}

.music-player-head span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.music-player-head span i {
    color: var(--accent);
}

.music-frame {
    height: 203px;
}

.music-frame iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
}

/* VI: Thu nhỏ nhưng vẫn giữ iframe để nhạc tiếp tục phát. EN: Minimized but iframe stays mounted so audio keeps playing. */
.music-player-container.minimized {
    width: auto;
}

.music-player-container.minimized .music-frame {
    height: 0;
}

/* ---------- Modals ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: var(--overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 100;
    animation: fade-in 160ms ease;
}

.modal-overlay.hidden,
.auth-modal-overlay:not(.active) {
    display: none;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    width: 100%;
    max-width: 420px;
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    animation: pop-in 200ms ease;
}

@keyframes pop-in {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: none; }
}

.modal-content h4 {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 18px;
    letter-spacing: -0.01em;
}

.modal-content h4 i {
    color: var(--accent);
}

.modal-content p {
    color: var(--text-muted);
}

.modal-content ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.modal-content li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 14px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--tone);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
}

/* ---------- Auth ---------- */
.auth-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.auth-tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
}

.auth-tab {
    padding: 7px 18px;
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    transition: all var(--transition);
}

.auth-tab.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-sm);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.auth-message {
    min-height: 20px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--danger);
}

.auth-message:empty {
    display: none;
}

.auth-message.success {
    color: var(--success);
}

/* VI: Lỗi trong hộp thoại (vd. đổi mật khẩu) vẫn màu đỏ. EN: Errors inside a dialog (e.g. change password) stay red. */
.modal-content .auth-message {
    color: var(--danger);
}

/* ---------- Toasts ---------- */
.toast-root {
    position: fixed;
    bottom: var(--space-6);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    z-index: 200;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: max-content;
    max-width: min(420px, calc(100vw - 32px));
    padding: 10px 16px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: var(--shadow-md);
    font-size: 14px;
    font-weight: 500;
    pointer-events: auto;
    animation: toast-in 220ms ease;
}

.toast i {
    font-size: 18px;
    color: var(--accent);
}

.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }

.toast.leaving {
    opacity: 0;
    transform: translateY(-6px);
    transition: all 200ms ease;
}

@keyframes toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
}

/* ---------- Scrollbars ---------- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-strong) transparent;
}

/* ---------- Deadlines: Notion Calendar-style ---------- */
.view-wide {
    max-width: 1440px;
}

.card-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.btn-sm {
    height: 34px;
    padding: 0 var(--space-3);
    font-size: 13px;
}

.btn-danger-text {
    color: var(--danger);
    margin-right: auto;
}

.cal-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.cal-toolbar-left,
.cal-toolbar-right,
.calendar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.calendar-nav {
    gap: 6px;
}

.cal-toolbar h2 {
    min-width: 200px;
    font-size: 22px;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.segmented {
    display: flex;
    padding: 3px;
    border-radius: var(--radius-md);
    background: var(--surface-2);
    border: 1px solid var(--border);
}

.segmented button {
    padding: 5px 14px;
    border-radius: 9px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
}

.segmented button.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow-sm);
}

.deadline-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: var(--space-4);
    align-items: start;
}

.calendar-card {
    padding: 0;
    overflow: hidden;
}

/* Month grid */
.calendar-grid.month {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    grid-template-rows: auto repeat(var(--weeks, 5), minmax(112px, 1fr));
}

.calendar-weekday {
    padding: 10px 10px 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calendar-day {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    padding: 6px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background var(--transition);
}

.calendar-day:nth-child(7n) {
    border-right: none;
}

.calendar-day:hover {
    background: color-mix(in srgb, var(--surface-2) 60%, transparent);
}

.calendar-day.is-weekend {
    background: color-mix(in srgb, var(--surface-2) 40%, transparent);
}

.calendar-day.is-outside .calendar-num {
    color: var(--text-faint);
}

.calendar-num {
    align-self: flex-start;
    display: inline-grid;
    place-items: center;
    min-width: 26px;
    height: 26px;
    padding: 0 6px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.calendar-day.is-today .calendar-num {
    background: var(--danger);
    color: #fff;
}

.calendar-day.is-selected {
    background: var(--accent-soft);
    box-shadow: inset 0 0 0 2px var(--accent);
}

.calendar-chips {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.calendar-dots {
    display: none;
}

.cal-chip {
    --prio: var(--accent);
    display: flex;
    align-items: center;
    gap: 5px;
    width: 100%;
    min-width: 0;
    padding: 3px 6px 3px 8px;
    border-radius: 6px;
    background: color-mix(in srgb, var(--prio) 14%, var(--surface));
    color: var(--text);
    font-size: 12px;
    font-weight: 550;
    text-align: left;
    line-height: 1.35;
    box-shadow: inset 3px 0 0 var(--prio);
    cursor: grab;
    transition: background var(--transition), opacity var(--transition), transform var(--transition);
}

.cal-chip:hover {
    background: color-mix(in srgb, var(--prio) 24%, var(--surface));
}

.cal-chip.priority-high { --prio: var(--danger); }
.cal-chip.priority-medium { --prio: var(--accent); }
.cal-chip.priority-low { --prio: var(--text-faint); }

.cal-chip.due-overdue {
    color: var(--danger);
}

.cal-chip.completed {
    opacity: 0.55;
}

.cal-chip.completed .cal-chip-text {
    text-decoration: line-through;
}

.cal-chip-time {
    flex-shrink: 0;
    color: var(--text-muted);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
}

.cal-chip-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cal-more {
    align-self: flex-start;
    padding: 1px 6px;
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 11.5px;
    font-weight: 600;
}

.cal-more:hover {
    background: var(--surface-3);
    color: var(--text);
}

.is-dragging {
    opacity: 0.4;
}

.is-drop-target {
    background: var(--accent-soft) !important;
    box-shadow: inset 0 0 0 2px var(--accent);
}

/* Week grid */
.calendar-grid.week {
    --hour-height: 44px;
    display: grid;
    grid-template-columns: 56px repeat(7, minmax(0, 1fr));
}

.week-corner,
.week-allday-label {
    border-bottom: 1px solid var(--border);
}

.week-day-head {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 10px 0 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
}

.week-day-head span {
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.week-day-head b {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--text);
    font-size: 17px;
    font-variant-numeric: tabular-nums;
}

.week-day-head.is-today b {
    background: var(--danger);
    color: #fff;
}

.week-day-head.is-selected b {
    box-shadow: 0 0 0 2px var(--accent);
}

.week-allday-label {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    color: var(--text-faint);
    font-size: 10.5px;
    font-weight: 600;
}

.week-allday {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-height: 36px;
    min-width: 0;
    padding: 4px;
    border-left: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.week-body {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 56px repeat(7, minmax(0, 1fr));
    max-height: 620px;
    overflow-y: auto;
}

.week-hours span {
    display: block;
    height: var(--hour-height);
    padding-right: 8px;
    color: var(--text-faint);
    font-size: 10.5px;
    font-weight: 600;
    text-align: right;
    transform: translateY(-7px);
    font-variant-numeric: tabular-nums;
}

.week-col {
    position: relative;
    border-left: 1px solid var(--border);
}

.week-col.is-today {
    background: color-mix(in srgb, var(--accent-soft) 40%, transparent);
}

.week-slot {
    height: var(--hour-height);
    border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}

.week-slot:hover {
    background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}

.week-event {
    position: absolute;
    left: 3px;
    right: 3px;
    width: auto;
    min-height: 30px;
    align-items: flex-start;
    flex-direction: column;
    gap: 0;
    z-index: 2;
}

.week-event .cal-chip-text {
    width: 100%;
}

.now-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--danger);
    z-index: 3;
    pointer-events: none;
}

.now-line::before {
    content: '';
    position: absolute;
    left: -5px;
    top: -4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--danger);
}

/* Agenda panel */
.agenda-card {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    padding: var(--space-5);
}

.agenda-head {
    margin-bottom: var(--space-4);
}

.agenda-eyebrow {
    color: var(--danger);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.agenda-head h3 {
    font-size: 19px;
    font-weight: 750;
}

.quick-add {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.quick-add-row {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: var(--space-2);
}

.quick-add-row .icon-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
}

.field-inline {
    position: relative;
    display: block;
}

.field-inline > i {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-faint);
    font-size: 16px;
    pointer-events: none;
}

.field-inline input,
.field-inline select {
    padding-left: 34px;
    font-size: 13.5px;
}

select {
    appearance: none;
    cursor: pointer;
}

.deadline-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: var(--space-3);
}

.deadline-filters .chip {
    padding: 4px 10px;
    font-size: 12.5px;
}

.chip-count {
    margin-left: 4px;
    padding: 0 6px;
    border-radius: var(--radius-full);
    background: var(--surface-3);
    font-size: 11px;
}

.chip.active .chip-count {
    background: color-mix(in srgb, var(--accent) 20%, transparent);
}

.chip-danger.active {
    background: color-mix(in srgb, var(--danger) 14%, transparent);
    color: var(--danger);
}

.deadline-list {
    max-height: 420px;
}

.deadline-list .todo-item {
    cursor: grab;
}

.deadline-list .todo-body {
    cursor: pointer;
}

.agenda-tip {
    display: flex;
    gap: 6px;
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
    color: var(--text-faint);
    font-size: 12px;
}

.agenda-tip i {
    font-size: 16px;
    flex-shrink: 0;
}

/* Task rows (shared) */
.todo-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.todo-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.due-tag,
.priority-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 1px 8px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 11.5px;
    font-weight: 600;
}

.todo-item:hover .due-tag,
.todo-item:hover .priority-tag {
    background: var(--surface-3);
}

.due-tag.due-today { color: var(--warning); }
.due-tag.due-overdue { color: var(--danger); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.due-tag.due-soon { color: var(--accent); }
.due-tag.due-done { color: var(--text-faint); }

.priority-tag {
    text-transform: capitalize;
}

.priority-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--prio);
}

.priority-high { --prio: var(--danger); }
.priority-medium { --prio: var(--warning); }
.priority-low { --prio: var(--text-faint); }

/* Task details dialog */
.task-modal {
    max-width: 460px;
}

.task-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.task-title-input {
    height: 48px !important;
    font-size: 17px;
    font-weight: 650;
}

.task-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.task-fields label {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.task-fields label > span {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 12.5px;
    font-weight: 600;
}

.task-fields .task-done-field {
    flex-direction: row;
    align-items: center;
    gap: var(--space-2);
    align-self: end;
    height: 42px;
    cursor: pointer;
}

.task-done-field input {
    width: 18px;
    height: 18px;
    accent-color: var(--success);
}

.task-done-field span {
    color: var(--text) !important;
    font-size: 14px !important;
}

/* ---------- Admin ---------- */
.admin-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.admin-subtitle {
    color: var(--text-muted);
    font-size: 14px;
}

.admin-stats {
    margin-bottom: var(--space-5);
}

.admin-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-5);
    align-items: start;
}

.admin-users-card .card-header {
    flex-wrap: wrap;
    gap: var(--space-3);
}

.admin-search {
    flex: 1;
    max-width: 280px;
    min-width: 160px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-2);
    color: var(--text);
    font: inherit;
    font-size: 13px;
}

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.admin-table th {
    padding: 8px 10px;
    color: var(--text-faint);
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-align: left;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}

.admin-table td {
    padding: 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table tr.is-disabled td:not(:last-child) {
    opacity: 0.5;
}

.admin-user-name {
    display: block;
    font-weight: 650;
}

.admin-muted {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
}

.admin-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--surface-2);
    color: var(--text-muted);
    font-size: 11.5px;
    font-weight: 650;
}

.admin-badge.is-admin {
    background: color-mix(in srgb, var(--accent) 18%, transparent);
    color: var(--accent);
}

.admin-badge.is-off {
    background: color-mix(in srgb, var(--danger) 15%, transparent);
    color: var(--danger);
}

.admin-actions {
    display: flex;
    justify-content: flex-end;
    gap: 4px;
    white-space: nowrap;
}

.admin-pager {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-top: var(--space-3);
    color: var(--text-muted);
    font-size: 13px;
}

.admin-server {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 12px;
    font-size: 13px;
}

.admin-server dt {
    color: var(--text-muted);
}

.admin-server dd {
    margin: 0;
    text-align: right;
    font-weight: 600;
    word-break: break-word;
}

@media (max-width: 1100px) {
    .admin-grid {
        grid-template-columns: 1fr;
    }
}

.btn-danger-icon:hover {
    color: var(--danger);
}