/* ============================================================
   DreamScape Shared Styles
   ------------------------------------------------------------
   Single source of truth for DreamScape design tokens and the
   components that were previously copy-pasted across templates
   (cards, buttons, tier badges, modals, empty states, forms).

   Brand: DreamScape uses the GREEN accent family on the shared
   dark backgrounds. Site-wide rules from
   docs/guides/website-style-guide.md still apply:
     - never pure white (#fff) -> use --ds-text-bright (#f5f3ff)
     - no gradient buttons or gradient headline text
     - hover on buttons = translateY(-2px), focus ring on inputs
   ============================================================ */

:root,
[data-product="ds"] {
    /* Backgrounds */
    --ds-bg: #0a0a1a;
    --ds-bg-raised: #12122a;
    --ds-bg-overlay: rgba(255, 255, 255, 0.03);
    --ds-bg-overlay-hi: rgba(255, 255, 255, 0.08);
    --ds-input-fill: rgba(255, 255, 255, 0.05);

    /* Brand greens */
    --ds-green: #10b981;
    --ds-green-hi: #34d399;
    --ds-green-soft: #6ee7b7;
    --ds-green-lo: #059669;
    --ds-green-tint: rgba(16, 185, 129, 0.1);
    --ds-green-border: rgba(16, 185, 129, 0.3);

    /* Text (style-guide scale; no pure white) */
    --ds-text-bright: #f5f3ff;
    --ds-text-light: #e2e8f0;
    --ds-text-muted: #cbd5e1;
    --ds-text-dim: #94a3b8;
    --ds-text-faint: #64748b;
    --ds-text-ghost: #475569;

    /* Semantic */
    --ds-warning: #f59e0b;
    --ds-danger: #ef4444;
    --ds-danger-hi: #f87171;

    /* Misc */
    --ds-border: rgba(255, 255, 255, 0.08);
    --ds-radius: 8px;
    --ds-radius-lg: 12px;
    --ds-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ── Buttons ─────────────────────────────────────────────── */
.ds-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: var(--ds-radius);
    font-weight: 600;
    font-size: 0.95rem;
    font-family: var(--ds-font);
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease,
        border-color 0.15s ease, color 0.15s ease;
}
.ds-btn:hover { transform: translateY(-2px); }
.ds-btn:focus-visible {
    outline: 2px solid var(--ds-green-hi);
    outline-offset: 2px;
}
.ds-btn:disabled,
.ds-btn[aria-busy="true"] {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.ds-btn-primary {
    background: var(--ds-green);
    color: #062b1f;
}
.ds-btn-primary:hover { background: var(--ds-green-hi); color: #062b1f; }

.ds-btn-secondary {
    background: var(--ds-green-tint);
    border-color: var(--ds-green-border);
    color: var(--ds-green-soft);
}
.ds-btn-secondary:hover { border-color: var(--ds-green-hi); color: var(--ds-text-light); }

.ds-btn-ghost {
    background: transparent;
    border-color: var(--ds-border);
    color: var(--ds-text-dim);
}
.ds-btn-ghost:hover { border-color: var(--ds-text-faint); color: var(--ds-text-light); }

.ds-btn-danger {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--ds-danger-hi);
}
.ds-btn-danger:hover { background: rgba(239, 68, 68, 0.2); }

.ds-btn-sm { padding: 6px 14px; font-size: 0.85rem; }

/* Inline spinner for async buttons */
.ds-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: var(--ds-text-bright);
    border-radius: 50%;
    display: inline-block;
    animation: ds-spin 0.7s linear infinite;
    vertical-align: -2px;
}
@keyframes ds-spin { to { transform: rotate(360deg); } }

/* ── Cards (session/scene cards on index + my_scenes) ────── */
.ds-card {
    background: var(--ds-bg-overlay);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius-lg);
    overflow: hidden;
    transition: transform 0.15s ease, border-color 0.15s ease;
}
.ds-card:hover {
    transform: translateY(-2px);
    border-color: var(--ds-green-border);
}
.ds-card-thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: var(--ds-bg-raised);
    display: block;
}
.ds-card-body { padding: 14px 16px 16px; }
.ds-card-title {
    color: var(--ds-text-bright);
    font-weight: 600;
    font-size: 1rem;
    margin: 0 0 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.ds-card-meta {
    color: var(--ds-text-dim);
    font-size: 0.82rem;
    margin: 0 0 12px;
}
.ds-card-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.ds-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
@media (max-width: 480px) {
    .ds-card-grid { grid-template-columns: 1fr; }
}

/* ── Tier badges ─────────────────────────────────────────── */
.ds-tier-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: 1px solid transparent;
}
.ds-tier-badge.tier-free,
.ds-tier-badge.tier-registered {
    background: var(--ds-bg-overlay-hi);
    border-color: var(--ds-border);
    color: var(--ds-text-dim);
}
.ds-tier-badge.tier-plus,
.ds-tier-badge.tier-paid {
    background: var(--ds-green-tint);
    border-color: var(--ds-green-border);
    color: var(--ds-green-soft);
}
.ds-tier-badge.tier-pro {
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.4);
    color: #fbbf24;
}
.ds-tier-badge.tier-admin {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--ds-danger-hi);
}

/* ── Modals ──────────────────────────────────────────────── */
.ds-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(4, 4, 12, 0.8);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 10001;
}
.ds-modal-overlay.active { display: flex; }
.ds-modal {
    background: var(--ds-bg-raised);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius-lg);
    padding: 24px;
    width: 100%;
    max-width: 460px;
    max-height: 85vh;
    overflow-y: auto;
    color: var(--ds-text-light);
}
.ds-modal h2, .ds-modal h3 {
    color: var(--ds-text-bright);
    margin: 0 0 14px;
    font-size: 1.15rem;
}
.ds-modal-close {
    position: absolute;
    top: 12px;
    right: 14px;
    background: none;
    border: none;
    color: var(--ds-text-dim);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
}
.ds-modal-close:hover { color: var(--ds-text-bright); }
.ds-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* ── Forms ───────────────────────────────────────────────── */
.ds-input,
.ds-select,
.ds-textarea {
    width: 100%;
    background: var(--ds-input-fill);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    color: var(--ds-text-light);
    font-family: var(--ds-font);
    font-size: 0.95rem;
    padding: 10px 12px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.ds-input::placeholder,
.ds-textarea::placeholder { color: var(--ds-text-ghost); }
.ds-input:hover, .ds-select:hover, .ds-textarea:hover {
    border-color: var(--ds-text-faint);
}
.ds-input:focus, .ds-select:focus, .ds-textarea:focus {
    outline: none;
    border-color: var(--ds-green-hi);
    box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.18);
}
.ds-input.error, .ds-select.error, .ds-textarea.error {
    border-color: var(--ds-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}
.ds-input:disabled, .ds-select:disabled, .ds-textarea:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.ds-field-error {
    color: var(--ds-danger-hi);
    font-size: 0.82rem;
    margin-top: 6px;
}
.ds-label {
    display: block;
    color: var(--ds-text-muted);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 6px;
}

/* ── Empty states ────────────────────────────────────────── */
.ds-empty {
    text-align: center;
    padding: 56px 24px;
    color: var(--ds-text-dim);
}
.ds-empty .ds-empty-icon {
    font-size: 2.4rem;
    display: block;
    margin-bottom: 12px;
    opacity: 0.7;
}
.ds-empty h3 {
    color: var(--ds-text-light);
    font-size: 1.05rem;
    margin: 0 0 6px;
}
.ds-empty p { margin: 0; font-size: 0.9rem; }

/* ── Toasts ──────────────────────────────────────────────── */
.ds-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translate(-50%, 12px);
    background: var(--ds-bg-raised);
    border: 1px solid var(--ds-green-border);
    color: var(--ds-text-light);
    padding: 10px 18px;
    border-radius: var(--ds-radius);
    font-size: 0.9rem;
    z-index: 10010;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}
.ds-toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}
.ds-toast.error { border-color: rgba(239, 68, 68, 0.5); color: var(--ds-danger-hi); }

/* ── Scrollbars (panels, modals) ─────────────────────────── */
.ds-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.ds-scroll::-webkit-scrollbar-track { background: transparent; }
.ds-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
}
.ds-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.22);
}

/* ── Page scaffolding for simple pages (legal, errors) ───── */
.ds-page {
    max-width: 820px;
    margin: 0 auto;
    padding: 96px 24px 64px;
}
.ds-page h1 {
    color: var(--ds-text-bright);
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 18px;
}
.ds-page h2 { color: var(--ds-text-light); font-size: 1.2rem; margin: 28px 0 10px; }
.ds-page p, .ds-page li { color: var(--ds-text-muted); line-height: 1.7; }
.ds-page a { color: var(--ds-green-hi); }
.ds-page strong { color: var(--ds-text-bright); }

/* ── FAQ (details/summary pattern) ───────────────────────── */
.ds-faq details {
    background: var(--ds-bg-overlay);
    border: 1px solid var(--ds-border);
    border-radius: var(--ds-radius);
    padding: 0 18px;
    margin-bottom: 10px;
}
.ds-faq summary {
    cursor: pointer;
    color: var(--ds-text-light);
    font-weight: 600;
    padding: 14px 0;
    list-style: none;
    position: relative;
}
.ds-faq summary::-webkit-details-marker { display: none; }
.ds-faq summary::after {
    content: '+';
    position: absolute;
    right: 0;
    color: var(--ds-green-hi);
    font-weight: 400;
    transition: transform 0.15s ease;
}
.ds-faq details[open] summary::after { transform: rotate(45deg); }
.ds-faq details p {
    color: var(--ds-text-dim);
    line-height: 1.6;
    padding-bottom: 16px;
    margin: 0;
}