/* ===========================================================================
   ModulosPlayV2 — Design System: estilos dos componentes (Shared/Components/Ds*).
   CSS global (não scoped — _content/Shared/ não é servido no host WASM).
   Consome só tokens de design-tokens.css. Carregado após design-tokens.css.
   =========================================================================== */

/* ---------- DsButton ---------- */
.ds-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 28px;
    border-radius: var(--radius-control);
    corner-shape: squircle;
    border: none;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: var(--fw-strong);
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: transform var(--t-fast) var(--ease-spring),
                background var(--t-base), color var(--t-base);
}
.ds-btn--block { width: 100%; }
.ds-btn:active:not(:disabled) { transform: scale(.97); }
.ds-btn:disabled,
.ds-btn[aria-disabled="true"] {
    opacity: .4;
    cursor: not-allowed;
    pointer-events: none;
}
.ds-btn--primary {
    background: var(--primary);
    color: var(--text-onprimary);
}
.ds-btn--primary:hover:not(:disabled) {
    background: var(--primary-hover);
}
.ds-btn--secondary {
    background: var(--accent);
    color: var(--text-onbrand);
}
.ds-btn--secondary:hover:not(:disabled) {
    background: var(--accent-hover);
}
.ds-btn--danger {
    background: var(--danger);
    color: var(--text-onbrand);
}
.ds-btn--danger:hover:not(:disabled) {
}
.ds-btn--outline {
    background: transparent;
    color: var(--action-hover);
    border: 2px solid var(--action);
    padding: 10px 28px;
}
.ds-btn--outline:hover:not(:disabled) {
    background: var(--primary-tint);
}
.ds-btn--ghost {
    background: transparent;
    color: var(--text-muted);
}
.ds-btn--ghost:hover:not(:disabled) {
    background: var(--surface-3);
    color: var(--text-primary);
}

/* ---------- DsBadge ---------- */
.ds-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}
.ds-badge__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}
.ds-badge--action    { background: var(--primary-tint);  color: var(--primary); }
.ds-badge--progress  { background: var(--progress-soft); color: var(--progress); }
.ds-badge--success   { background: var(--success-soft);  color: var(--success); }
.ds-badge--danger    { background: var(--danger-soft);   color: var(--danger); }
.ds-badge--highlight { background: var(--highlight-soft); color: var(--highlight); }
.ds-badge--neutral   { background: var(--surface-3);     color: var(--text-muted); }

/* ---------- DsCard ---------- */
.ds-card {
    display: block;
    width: 100%;
    text-align: left;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}
.ds-card--flush { padding: 0; overflow: hidden; }
.ds-card--interactive {
    cursor: pointer;
    transition: box-shadow var(--t-base) var(--ease-smooth),
                border-color var(--t-base);
}
.ds-card--interactive:hover {
    border-color: var(--action);
    box-shadow: var(--shadow-md);
}

/* ---------- DsProgressBar ---------- */
.ds-progress {
    height: 8px;
    background: var(--bg-surface);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.ds-progress__fill {
    display: block;
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--t-slow) var(--ease-smooth);
}
.ds-progress__fill--progress  { background: var(--progress); }
.ds-progress__fill--action    { background: var(--action); }
.ds-progress__fill--success   { background: var(--success); }
.ds-progress__fill--attention { background: var(--warning); }

/* ---------- DsTabs ---------- */
.ds-tabs {
    display: flex;
    gap: .25rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
}
.ds-tabs::-webkit-scrollbar { height: 4px; }
.ds-tabs { scrollbar-color: var(--border) transparent; }
.ds-tabs::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.ds-tab {
    background: transparent;
    border: 0;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: var(--fw-strong);
    padding: .7rem 1.1rem;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: color var(--t-fast), border-color var(--t-fast);
}
.ds-tab:hover { color: var(--text-primary); }
.ds-tab--active {
    color: var(--text-primary);
    border-bottom-color: var(--action);
}

/* ---------- DsAccordion ---------- */
.ds-acc-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    margin-bottom: .6rem;
    overflow: hidden;
}
.ds-acc-item__head {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 1rem 1.1rem;
    cursor: pointer;
    list-style: none;
    font-family: var(--font-display);
    font-weight: var(--fw-strong);
    font-size: var(--fs-h3);
    color: var(--text-primary);
    transition: color var(--t-fast);
}
.ds-acc-item__head::-webkit-details-marker { display: none; }
.ds-acc-item__head:hover { color: var(--action-hover); }
.ds-acc-item__title { flex: 1; min-width: 0; }
.ds-acc-item__chevron {
    color: var(--action-hover);
    font-size: 1.3rem;
    line-height: 1;
    flex-shrink: 0;
    transition: transform var(--t-base) var(--ease-smooth);
}
.ds-acc-item[open] .ds-acc-item__chevron { transform: rotate(90deg); }
.ds-acc-item[open] .ds-acc-item__head { border-bottom: 1px solid var(--border); }
.ds-acc-item__body { padding: 1rem 1.1rem 1.25rem; }

/* ---------- DsSkeleton ---------- */
.ds-skeleton {
    display: block;
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    height: 1em;
    width: 100%;
    position: relative;
    overflow: hidden;
}
.ds-skeleton--card {
    height: 260px;
    border-radius: var(--radius-lg);
}
.ds-skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, rgba(128, 128, 128, .12), transparent);
    animation: ds-shimmer 1.4s infinite;
}
@keyframes ds-shimmer {
    100% { transform: translateX(100%); }
}
@media (prefers-reduced-motion: reduce) {
    .ds-skeleton::after { animation: none; }
}

/* ---------- DsEmptyState ---------- */
.ds-empty {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    background: var(--bg-elevated);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
}
.ds-empty__title {
    font-family: var(--font-display);
    font-size: var(--fs-h3);
    font-weight: var(--fw-strong);
    color: var(--text-primary);
    margin: 0 0 var(--space-2);
}
.ds-empty__body { font-size: 14px; margin: 0 0 var(--space-5); }
.ds-empty__action { display: flex; justify-content: center; }

/* ---------- DsToastHost (notificações transitórias) ---------- */
.ds-toast-host {
    position: fixed;
    right: var(--space-5);
    bottom: var(--space-5);
    z-index: 1000;
    display: flex;
    flex-direction: column-reverse;
    gap: var(--space-3);
    max-width: min(92vw, 380px);
    pointer-events: none;
}
.ds-toast {
    pointer-events: auto;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--surface-2);
    color: var(--text);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-lg);
    font-size: 14px;
    line-height: 1.35;
    animation: ds-toast-in var(--t-fast) var(--ease-spring);
}
/* Tipo do aviso: borda inteira tingida + o ícone (não faixa lateral). */
.ds-toast--success { border-color: color-mix(in srgb, var(--success) 60%, var(--border)); }
.ds-toast--warning { border-color: color-mix(in srgb, var(--warning) 60%, var(--border)); }
.ds-toast--danger  { border-color: color-mix(in srgb, var(--danger) 60%, var(--border)); }
.ds-toast--info    { border-color: var(--border-strong); }
.ds-toast { cursor: pointer; }                 /* corpo clicável = dispensa (garante que o aluno viu) */
.ds-toast--ack { border-width: 2px; align-items: center; }
.ds-toast__icon { flex: 0 0 auto; font-size: 16px; line-height: 1.4; }
.ds-toast__text { flex: 1 1 auto; }
.ds-toast__action {
    flex: 0 0 auto;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--text-muted);
    border-radius: var(--radius-sm, 6px);
    padding: 2px 10px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.ds-toast__action:hover { border-color: var(--text); }
.ds-toast__close {
    flex: 0 0 auto;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    padding: 0;
}
.ds-toast__close:hover { color: var(--text); }
@keyframes ds-toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
    .ds-toast { animation: none; }
}

/* ---------- Banner sem-internet (player) ---------- */
.player-offline-banner {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-4);
    background: var(--warning-tint);
    border: 1px solid var(--warning);
    border-radius: var(--radius-md);
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
}