/* ════════════════════════════════════════════════════
   TEACHING MODE — Workshops
   Shared stylesheet for all From Ideas to Apps workshops.
   ════════════════════════════════════════════════════ */

/* ── Toggle button in .fixed-controls ─────────────── */
.tm-toggle-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-tertiary, #999);
    cursor: pointer;
    transition: all 0.25s;
}
.tm-toggle-btn:hover,
.tm-toggle-btn--active {
    background: var(--accent-primary, #6366f1);
    border-color: var(--accent-primary, #6366f1);
    color: #fff;
    box-shadow: 0 0 14px rgba(99, 102, 241, 0.45);
}

/* ── Teaching toolbar (fixed top bar) ──────────────── */
.teaching-toolbar {
    display: none; /* shown only when [data-teaching="true"] */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-secondary, #131313);
    border-bottom: 2px solid var(--accent-primary, #6366f1);
    z-index: 10001;
    align-items: center;
    padding: 0 1rem;
    gap: 0.75rem;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}
[data-theme="light"] .teaching-toolbar {
    border-bottom-color: var(--accent-primary, #6366f1);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.12);
}

/* ── Active state: show toolbar, hide chrome ───────── */
[data-teaching="true"] .teaching-toolbar {
    display: flex;
}

[data-teaching="true"] .navbar,
[data-teaching="true"] .fixed-controls,
[data-teaching="true"] .sidebar-mobile-toggle,
[data-teaching="true"] .sidebar-backdrop,
[data-teaching="true"] .workshop-sidebar,
[data-teaching="true"] .section-indicator {
    display: none !important;
}

[data-teaching="true"] .workshop-content {
    margin: 0 auto !important;
    padding-top: calc(56px + 1.5rem);
    max-width: 920px;
}

/* ── Slide focus / dim (applied to individual content blocks) ── */
[data-tm-slide][data-tm-focus] {
    transition: opacity 0.35s ease;
}
[data-tm-slide][data-tm-focus="active"] {
    opacity: 1;
}
[data-tm-slide][data-tm-focus="dim"] {
    opacity: 0.18;
    cursor: pointer;
}

/* ── Toolbar navigation buttons ────────────────────── */
.tm-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: var(--bg-tertiary, #1a1a1a);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary, #aaa);
    cursor: pointer;
    transition: all 0.2s;
}
.tm-nav-btn:hover:not(:disabled) {
    background: var(--accent-primary, #6366f1);
    border-color: var(--accent-primary, #6366f1);
    color: #fff;
}
.tm-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ── Center section info ───────────────────────────── */
.tm-center {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    overflow: hidden;
}
.tm-module-name {
    font-family: 'Inter', sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-primary, #6366f1);
    flex-shrink: 0;
}
.tm-sep {
    color: var(--text-tertiary, #666);
    flex-shrink: 0;
    font-size: 0.8rem;
}
.tm-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary, #eee);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tm-counter {
    font-family: 'Inter', sans-serif;
    font-size: 0.72rem;
    color: var(--text-tertiary, #666);
    flex-shrink: 0;
    background: var(--bg-tertiary, #1a1a1a);
    padding: 0.18rem 0.55rem;
    border-radius: 100px;
    border: 1px solid var(--border-color);
}

/* ── Exit button ───────────────────────────────────── */
.tm-exit-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    flex-shrink: 0;
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: 8px;
    color: #f87171;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.tm-exit-btn:hover {
    background: #f87171;
    color: #fff;
    border-color: #f87171;
}

/* ── Zoom controls ─────────────────────────────────── */
.tm-zoom-group {
    display: flex;
    align-items: center;
    gap: 0;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}
.tm-zoom-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background: var(--bg-tertiary, #1a1a1a);
    border: none;
    color: var(--text-secondary, #aaa);
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}
.tm-zoom-btn:hover:not(:disabled) {
    background: var(--accent-primary, #6366f1);
    color: #fff;
}
.tm-zoom-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.tm-zoom-level {
    font-family: 'Inter', sans-serif;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-tertiary, #666);
    background: var(--bg-secondary, #131313);
    padding: 0 0.45rem;
    min-width: 38px;
    text-align: center;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    line-height: 30px;
    white-space: nowrap;
}

/* ── Keyboard hint toast ───────────────────────────── */
.tm-keyboard-hint {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(10, 12, 16, 0.9);
    color: #f0f2ff;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.65rem 1.4rem;
    border-radius: 100px;
    border: 1px solid var(--border-color);
    z-index: 10002;
    pointer-events: none;
    white-space: nowrap;
    animation: tmHintFade 4s ease forwards;
}
[data-theme="light"] .tm-keyboard-hint {
    background: rgba(16, 19, 26, 0.85);
}

@keyframes tmHintFade {
    0%   { opacity: 0; transform: translateX(-50%) translateY(8px); }
    15%  { opacity: 1; transform: translateX(-50%) translateY(0); }
    70%  { opacity: 1; }
    100% { opacity: 0; }
}

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 600px) {
    .teaching-toolbar {
        padding: 0 0.75rem;
        gap: 0.5rem;
    }
    .tm-title { display: none; }
    .tm-sep   { display: none; }
    .teaching-toolbar .tm-center { gap: 0.4rem; }
    [data-teaching="true"] .workshop-content {
        padding: 1rem 1rem 3rem;
        padding-top: calc(56px + 1rem);
    }
    .tm-keyboard-hint {
        font-size: 0.72rem;
        padding: 0.5rem 1rem;
    }
}