/* ==========================================================================
   Timers tab (#tab-timers) + shared alert modal (#timer-alert-modal)
   Owner: Timers. Tokens only (css/tokens.css), components from style.css.

   Contents
     T2 Page layout: head card, mode panels, two-column grid
     T3 Sound settings (disclosure row inside the head card)
     T4 Add form (standard + planning share .planning-add-form)
     T5 Standard timers: tiles (markup from TimerManager.renderTimerItem)
     T6 Planning: plans list, controls, schedule
     T7 Alert modal
     T8 Responsive, reduced motion
   ========================================================================== */

/* ---- T2 Layout ----------------------------------------------------------- */
#tab-timers .timers-head {
    padding-bottom: 0;
}

#tab-timers .timers-head-row {
    margin-bottom: var(--space-4);
}

.timer-subtabs {
    margin: 0;
}

.timer-subtab-btn .i {
    font-size: 15px;
}

.timer-mode-content {
    display: none;
}

.timer-mode-content.active {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
    gap: var(--space-4);
}

@media (min-width: 1200px) {
    .timer-mode-content.active {
        grid-template-columns: minmax(340px, 400px) minmax(0, 1fr);
    }

    /* The form column stays in view while a long list scrolls */
    #tab-timers .timer-mode-content > .planning-add-form {
        position: sticky;
        top: calc(var(--topbar-h) + var(--space-4));
    }
}

/* ---- T3 Sound settings --------------------------------------------------- */
.timer-sound-settings {
    margin: 0 calc(var(--card-pad) * -1);
    border-top: 1px solid var(--border);
}

.timer-sound-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-height: 48px;
    padding: var(--space-2) var(--card-pad);
    color: var(--text);
    cursor: pointer;
    user-select: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    transition: background-color var(--dur-fast) ease;
}

.timer-sound-header[aria-expanded="true"] {
    border-radius: 0;
}

.timer-sound-header:hover {
    background: var(--row-hover);
}

.timer-sound-header:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.timer-sound-icon {
    color: var(--text-3);
    font-size: 16px;
}

.timer-sound-title {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    white-space: nowrap;
}

.timer-sound-summary {
    min-width: 0;
    margin-left: auto;
    overflow: hidden;
    color: var(--text-3);
    font-size: var(--text-sm);
    font-variant-numeric: tabular-nums;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.timer-sound-arrow {
    color: var(--text-3);
    font-size: 14px;
    transition: transform var(--dur) var(--ease-out);
}

.timer-sound-arrow.open {
    transform: rotate(180deg);
}

.timer-sound-body {
    padding: var(--space-1) var(--card-pad) var(--card-pad);
}

.timer-sound-grid,
.timer-youtube-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
}

.timer-sound-grid > .field,
.timer-youtube-grid > .field {
    margin: 0;
}

.planning-form-select {
    width: 100%;
}

.timer-sound-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    width: fit-content;
    color: var(--accent);
}

.timer-sound-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.timer-volume-label {
    justify-content: space-between;
}

#volume-value {
    color: var(--text);
    font-weight: var(--weight-semibold);
}

#timer-volume-slider {
    display: block;
    height: var(--control-h);
    margin: 0;
}

.timer-youtube {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.timer-youtube-status {
    display: block;
    min-height: 1.4em;
    margin-top: var(--space-2);
    color: var(--text-3);
    font-size: var(--text-xs);
}

.timer-youtube-status.is-success {
    color: var(--success);
}

@media (min-width: 640px) {
    .timer-sound-grid {
        grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) auto;
    }

    .timer-youtube-grid {
        grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto;
    }

    /* Buttons line up with the controls, not with the labels */
    .timer-sound-action {
        padding-top: calc(var(--text-sm) * 1.4 + 6px);
    }
}

@media (max-width: 639px) {
    .timer-youtube-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .timer-youtube-id,
    .timer-youtube-grid > .timer-sound-action {
        grid-column: 1 / -1;
    }

    .timer-sound-action .btn {
        width: 100%;
    }
}

/* ---- T4 Add form ---------------------------------------------------------
   The card is a size container: one row when it is wide, name on its own
   row when it is a narrow column (desktop sidebar) or a phone.              */
#tab-timers .planning-add-form {
    container-type: inline-size;
}

.planning-form-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
        "name name"
        "secs add";
    gap: var(--space-3);
    align-items: end;
}

.planning-field-name { grid-area: name; }
.planning-field-seconds { grid-area: secs; }
.planning-form-row > .planning-add-btn { grid-area: add; }

#tab-timers .planning-form-row > .field {
    margin: 0;
}

@container (min-width: 520px) {
    .planning-form-row {
        grid-template-columns: minmax(0, 1fr) 9rem auto;
        grid-template-areas: "name secs add";
    }
}

.planning-quick-intervals {
    margin-top: var(--space-4);
}

.planning-quick-label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--text-3);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
}

.planning-quick-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

#tab-timers .planning-quick-btn,
#tab-timers .planning-quick-task-btn {
    display: inline-flex;
    align-items: center;
    height: var(--control-h-sm);
    padding: 0 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text-2);
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    cursor: pointer;
    transition: background-color var(--dur-fast) ease, color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

#tab-timers .planning-quick-btn:hover,
#tab-timers .planning-quick-task-btn:hover {
    background: var(--surface-3);
    color: var(--text);
}

#tab-timers .planning-quick-btn:active,
#tab-timers .planning-quick-task-btn:active {
    transform: translateY(1px);
}

#tab-timers .planning-quick-btn:focus-visible,
#tab-timers .planning-quick-task-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ---- T5 Standard timers: tiles ------------------------------------------ */
#timers-list-container .card-title {
    margin-bottom: var(--space-4);
}

.timers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 236px), 1fr));
    gap: var(--space-3);
}

.timers-grid:empty {
    display: none;
}

#no-timers-message {
    padding-block: var(--space-8);
}

#tab-timers .timer-item {
    position: relative;
    margin: 0;
    border: 0;
    border-radius: var(--radius-lg);
    background: var(--surface-2);
    transition: background-color var(--dur) ease;
}

#tab-timers .timer-item.alert {
    background: var(--danger-soft);
}

#tab-timers .timer-item-inner {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4) var(--space-3);
}

#tab-timers .timer-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
}

#tab-timers .timer-task-name {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
    overflow: hidden;
    color: var(--text);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-snug);
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Status chip: quieter than the default chip, tone comes from chip-* */
#tab-timers .timer-status {
    flex: none;
    height: 20px;
    padding: 0 7px;
    background: var(--surface-3);
    color: var(--text-2);
    font-size: var(--text-2xs);
    font-weight: var(--weight-semibold);
}

#tab-timers .timer-status.chip-accent { background: var(--accent-soft); color: var(--accent-text); }
#tab-timers .timer-status.chip-danger { background: var(--surface); color: var(--danger); }

#tab-timers .timer-status .i {
    font-size: 11px;
}

#tab-timers .timer-time-display {
    margin: 0;
    color: var(--text);
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
    line-height: 1.1;
    text-align: left;
}

#tab-timers .timer-item--paused .timer-time-display {
    color: var(--text-3);
}

#tab-timers .timer-item.alert .timer-time-display {
    color: var(--danger);
}

#tab-timers .timer-progress-container {
    margin: 0;
}

#tab-timers .timer-progress-bar {
    width: 100%;
    height: 4px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--border);
}

#tab-timers .timer-progress-fill {
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
    transform-origin: left center;
    transform: scaleX(0);
    transition: transform 1s linear;
}

#tab-timers .timer-item--paused .timer-progress-fill {
    background: var(--text-3);
}

#tab-timers .timer-progress-fill.alert {
    background: var(--danger);
}

#tab-timers .timer-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    color: var(--text-3);
    font-size: var(--text-xs);
}

.timer-interval .num {
    color: var(--text-2);
}

#tab-timers .timer-controls {
    display: flex;
    gap: 2px;
    margin-right: -6px;
}

#tab-timers .timer-control-btn,
#tab-timers .timer-control-btn.play,
#tab-timers .timer-control-btn.pause {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--control-h-sm);
    height: var(--control-h-sm);
    border: 0;
    border-radius: var(--radius);
    background: transparent;
    color: var(--text-2);
    font-size: 16px;
    padding: 0;
    cursor: pointer;
}

#tab-timers .timer-control-btn:hover {
    background: var(--surface-3);
    color: var(--text);
}

#tab-timers .timer-item.alert .timer-control-btn:hover {
    background: var(--surface);
}

#tab-timers .timer-control-btn.delete:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

#tab-timers .timer-item.alert .timer-control-btn.delete:hover {
    background: var(--surface);
}

#tab-timers .timer-control-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 0;
}

#tab-timers .timer-control-btn:active {
    transform: translateY(1px);
}

/* ---- T6 Planning ---------------------------------------------------------- */
.planning-plans-section {
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.planning-plans-header {
    margin-bottom: var(--space-2);
}

.planning-subtitle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0;
    color: var(--text);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
}

.planning-plans-list {
    display: flex;
    flex-direction: column;
}

.planning-plan-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 40px;
    padding: 2px 0;
    font-size: var(--text-sm);
}

.planning-plan-item + .planning-plan-item {
    border-top: 1px solid var(--border);
}

.planning-plan-name {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    color: var(--text);
    font-weight: var(--weight-medium);
    text-overflow: ellipsis;
    white-space: nowrap;
}

.planning-plan-interval {
    flex: none;
}

#tab-timers .planning-plan-remove {
    flex: none;
    margin-right: -6px;
    color: var(--text-3);
}

#tab-timers .planning-plan-remove:hover {
    background: var(--danger-soft);
    color: var(--danger);
}

.planning-no-plans {
    padding: var(--space-3) 0;
    color: var(--text-3);
    font-size: var(--text-sm);
}

.planning-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.planning-status {
    color: var(--text-3);
    font-size: var(--text-sm);
}

.planning-status:empty {
    display: none;
}

.planning-status.active {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: var(--radius-full);
    background: var(--success-soft);
    color: var(--success);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
}

/* Plan swatches: categorical identity of a plan, derived from tokens so the
   dark theme adapts. Order matches PLAN_COLORS in planning.js.             */
.plan-swatch { background: var(--text-3); }
.plan-swatch--1 { background: var(--danger); }
.plan-swatch--2 { background: var(--accent); }
.plan-swatch--3 { background: var(--success); }
.plan-swatch--4 { background: var(--warning); }
.plan-swatch--5 { background: color-mix(in oklab, var(--accent) 55%, var(--danger)); }
.plan-swatch--6 { background: color-mix(in oklab, var(--success) 60%, var(--accent)); }
.plan-swatch--7 { background: color-mix(in oklab, var(--warning) 55%, var(--danger)); }
.plan-swatch--8 { background: var(--text-2); }

.planning-plan-color {
    flex: none;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-sm);
}

.planning-schedule-list {
    display: flex;
    flex-direction: column;
    max-height: min(560px, 70vh);
    margin: 0 calc(var(--space-2) * -1);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.planning-event {
    display: grid;
    grid-template-columns: 18px 4.75rem 10px minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--space-3);
    min-height: 36px;
    padding: 0 var(--space-2);
    border-radius: var(--radius);
    color: var(--text);
    font-size: var(--text-sm);
}

.planning-event.past {
    color: var(--text-3);
}

.planning-event.next-up {
    background: var(--accent-soft);
    font-weight: var(--weight-semibold);
}

.planning-event-check {
    display: inline-flex;
    justify-content: center;
    color: var(--success);
    font-size: 14px;
}

.planning-event.is-missed .planning-event-check {
    color: var(--warning);
}

.planning-event-time {
    font-weight: var(--weight-semibold);
}

.planning-event.next-up .planning-event-time {
    color: var(--accent-text);
}

.planning-event-color {
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

.planning-event.past .planning-event-color {
    opacity: 0.5;
}

.planning-event-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.planning-event-countdown {
    color: var(--text-3);
    font-size: var(--text-xs);
    white-space: nowrap;
}

.planning-event.is-missed .planning-event-countdown {
    color: var(--warning);
}

.planning-event.next-up .planning-event-countdown {
    color: var(--accent-text);
}

.planning-no-events {
    padding-block: var(--space-8);
}

/* ---- T7 Alert modal -------------------------------------------------------
   Opaque sheet, calm palette, one clear action. Sits above toasts' backdrop
   via the regular modal layer; bottom sheet on phones (style.css 13/18).    */
.timer-alert-content {
    border-color: var(--border-strong);
}

.timer-alert-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-8) var(--space-6) var(--space-6);
    text-align: center;
}

.timer-alert-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-4);
    border-radius: var(--radius-full);
    background: var(--warning-soft);
    color: var(--warning);
    font-size: 28px;
}

.timer-alert-modal.show .timer-alert-icon .i {
    transform-origin: 50% 10%;
    animation: timer-alert-ring 1.2s var(--ease-out) 2;
}

@keyframes timer-alert-ring {
    0%, 60%, 100% { transform: rotate(0); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-12deg); }
    30% { transform: rotate(8deg); }
    40% { transform: rotate(-5deg); }
}

.timer-alert-eyebrow {
    margin: 0 0 var(--space-1);
    color: var(--warning);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-caps);
    text-transform: uppercase;
}

.timer-alert-task {
    max-width: 100%;
    margin: 0;
    color: var(--text);
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    line-height: var(--leading-tight);
    overflow-wrap: anywhere;
}

.timer-alert-meta {
    margin: var(--space-2) 0 0;
    color: var(--text-2);
    font-size: var(--text-sm);
}

.timer-alert-hint {
    margin: var(--space-3) 0 0;
    color: var(--text-3);
    font-size: var(--text-sm);
}

.timer-alert-queue {
    width: 100%;
    margin-top: var(--space-5);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    background: var(--surface-2);
    text-align: left;
}

.timer-alert-queue-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin: 0 0 var(--space-2);
    color: var(--text-2);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
}

.timer-alert-queue-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 0;
    padding: 0;
    list-style: decimal inside;
    color: var(--text);
    font-size: var(--text-sm);
}

.timer-alert-queue-list li {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.timer-alert-queue-list li::marker {
    color: var(--text-3);
    font-variant-numeric: tabular-nums;
}

.timer-alert-queue-more {
    list-style: none;
    color: var(--text-3);
}

.timer-alert-footer {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6) var(--space-5);
    border-top: 0;
}

.timer-alert-footer .btn {
    width: 100%;
}

.timer-alert-kbd-hint {
    color: var(--text-3);
    font-size: var(--text-xs);
    text-align: center;
}

.timer-alert-kbd-hint kbd {
    display: inline-block;
    min-width: 1.6em;
    padding: 0 5px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    color: var(--text-2);
    font-family: var(--font-mono);
    font-size: var(--text-2xs);
    line-height: 1.6;
}

/* ---- T8 Responsive, reduced motion ---------------------------------------- */
@media (max-width: 768px) {
    .timer-subtabs {
        width: 100%;
    }

    #tab-timers .timers-head-row {
        flex-direction: column;
        align-items: stretch;
    }

    .timer-sound-title {
        white-space: normal;
    }

    .timer-alert-body {
        padding: var(--space-6) var(--space-4) var(--space-4);
    }

    .timer-alert-footer {
        padding: var(--space-3) var(--space-4) var(--space-4);
    }

    /* Esc is a keyboard hint; no keyboard on a phone */
    .timer-alert-kbd-hint {
        display: none;
    }
}

/* Two segment labels must fit at 320px: drop the icons, tighten padding */
@media (max-width: 400px) {
    #tab-timers .timer-subtab-btn {
        padding: 0 var(--space-2);
    }

    #tab-timers .timer-subtab-btn .i {
        display: none;
    }
}

@media (max-width: 480px) {
    .planning-event {
        grid-template-columns: 16px 4.25rem 8px minmax(0, 1fr) auto;
        gap: var(--space-2);
    }
}

@media (hover: none) {
    .timer-alert-kbd-hint {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .timer-alert-modal.show .timer-alert-icon .i {
        animation: none;
    }

    #tab-timers .timer-progress-fill {
        transition: none;
    }
}