/* === MODO SLIDE === */

.slide-toggle {
    margin-left: auto;
    padding: 8px 18px;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9em;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.slide-toggle:hover {
    background: var(--primary);
    color: white;
}

/* --- FULLSCREEN SLIDE MODE --- */
body.slide-active {
    overflow: hidden;
}

body.slide-active .top-bar,
body.slide-active .nav-footer,
body.slide-active .lesson-hero {
    display: none;
}

body.slide-active .content-wrapper {
    max-width: 100%;
    margin: 0;
    padding: 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1000;
    background: var(--bg-light);
}

body.slide-active .content-card {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 85vw;
    max-width: 1100px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 50px 60px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    animation: slideIn 0.35s ease;
}

body.slide-active .content-card.slide-visible {
    display: block;
}

body.slide-active .content-card h2 {
    font-size: 2.2em;
    margin-bottom: 25px;
}

body.slide-active .content-card p {
    font-size: 1.35em;
    line-height: 1.8;
    margin-bottom: 20px;
}

body.slide-active .content-card ul,
body.slide-active .content-card ol {
    font-size: 1.3em;
    line-height: 1.9;
    margin-left: 35px;
}

body.slide-active .content-card li {
    margin-bottom: 12px;
}

body.slide-active .content-card .highlight-box {
    padding: 25px 30px;
    margin: 25px 0;
}

body.slide-active .content-card .highlight-box p {
    font-size: 1.4em;
}

body.slide-active .content-card .code-block {
    font-size: 1.3em;
    padding: 30px;
}

body.slide-active .content-card .compare-grid {
    gap: 20px;
}

body.slide-active .content-card .compare-item code {
    font-size: 1.1em;
}

body.slide-active .content-card .example-grid,
body.slide-active .content-card .feature-list,
body.slide-active .content-card .tip-grid {
    gap: 20px;
}

body.slide-active .content-card .example-item,
body.slide-active .content-card .feature-item,
body.slide-active .content-card .tip-item {
    padding: 25px;
}

body.slide-active .content-card .example-item strong,
body.slide-active .content-card .feature-item strong,
body.slide-active .content-card .tip-item strong {
    font-size: 1.15em;
}

body.slide-active .content-card .example-item span,
body.slide-active .content-card .feature-item span,
body.slide-active .content-card .tip-item span {
    font-size: 1.05em;
}

body.slide-active .content-card .example-item .ex-icon,
body.slide-active .content-card .feature-item .feat-icon,
body.slide-active .content-card .tip-item .tip-icon {
    font-size: 2.5em;
}

@keyframes slideIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.96); }
    to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* --- SLIDE HUD (controles overlay) --- */
.slide-hud {
    display: none;
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    background: white;
    padding: 12px 28px;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    align-items: center;
    gap: 20px;
    user-select: none;
}

body.slide-active .slide-hud {
    display: flex;
}

.slide-hud-btn {
    background: transparent;
    border: 2px solid #e2e8f0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    font-size: 1.2em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: var(--text-dark);
}

.slide-hud-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.slide-counter {
    font-weight: 700;
    font-size: 1.05em;
    color: var(--primary);
    min-width: 60px;
    text-align: center;
}

.slide-hud-close {
    background: transparent;
    border: 2px solid #fed7d7;
    color: #e53e3e;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    font-size: 1.1em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    margin-left: 8px;
}

.slide-hud-close:hover {
    background: #e53e3e;
    border-color: #e53e3e;
    color: white;
}

/* --- SLIDE TITLE OVERLAY --- */
.slide-title-bar {
    display: none;
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    background: white;
    padding: 10px 30px;
    border-radius: 50px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    font-weight: 600;
    color: var(--primary);
    font-size: 1em;
}

body.slide-active .slide-title-bar {
    display: block;
}

/* === BARRA DE FERRAMENTAS DOS BLOCOS DE CÓDIGO === */
.code-toolbar {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    background: rgba(0,0,0,0.3);
    border-radius: 12px 12px 0 0;
    font-family: 'Segoe UI', sans-serif;
}

.code-toolbar-label {
    font-size: 0.73em;
    color: #64748b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 55%;
}

.code-toolbar-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.code-action-btn {
    padding: 3px 10px;
    border-radius: 5px;
    font-size: 0.72em;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.08);
    color: #94a3b8;
    cursor: pointer;
    font-family: 'Segoe UI', sans-serif;
    text-decoration: none;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.code-action-btn:hover {
    background: rgba(255,255,255,0.18);
    color: #e2e8f0;
    border-color: rgba(255,255,255,0.3);
}

.code-action-btn.copied {
    background: rgba(56,176,0,0.25);
    color: #86efac;
    border-color: rgba(134,239,172,0.4);
}

/* === CONTROLES DE TAMANHO DE FONTE === */
.font-controls {
    display: flex;
    gap: 4px;
}

.font-btn {
    padding: 5px 9px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    font-weight: 700;
    color: #306998;
    font-size: 0.82em;
    line-height: 1;
    transition: all 0.2s;
}

.font-btn:hover {
    background: #eef4fb;
    border-color: #306998;
}

/* === MODO ESCURO (AULAS) === */

.dark-toggle {
    padding: 5px 9px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    font-size: 1.1em;
    line-height: 1;
    transition: all 0.2s;
}

.dark-toggle:hover {
    background: #eef4fb;
    border-color: #306998;
}

body.dark-mode {
    background-color: #0f172a;
    color: #e2e8f0;
}

body.dark-mode .top-bar {
    background: #1e293b;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

body.dark-mode .lesson-hero,
body.dark-mode .content-card {
    background: #1e293b;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

body.dark-mode .content-card h2 { color: #93c5fd; }
body.dark-mode .content-card h3 { color: #c4b5fd; }
body.dark-mode .content-card p,
body.dark-mode .content-card li { color: #cbd5e1; }

body.dark-mode .highlight-box {
    background: linear-gradient(135deg, rgba(30,41,59,0.9), rgba(51,65,85,0.6));
    border-left-color: var(--secondary);
}
body.dark-mode .highlight-box p { color: #cbd5e1; }

body.dark-mode .code-block { background: #090e17; }

body.dark-mode .exercise-box {
    background: #0f2318;
    border-color: #166534;
}
body.dark-mode .exercise-box h3 { color: #86efac; }
body.dark-mode .exercise-box p,
body.dark-mode .exercise-box li { color: #cbd5e1; }
body.dark-mode .exercise-box code { background: #14261e; color: #86efac; }

body.dark-mode .nav-link {
    background: #1e293b;
    color: #93c5fd;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
body.dark-mode .nav-link:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.3); }

body.dark-mode .back-btn { color: #93c5fd; }
body.dark-mode .back-btn:hover { background: rgba(147,197,253,0.08); }

body.dark-mode .slide-toggle { border-color: #60a5fa; color: #60a5fa; }
body.dark-mode .slide-toggle:hover { background: #60a5fa; color: #0f172a; }

body.dark-mode .font-btn { background: #334155; border-color: #475569; color: #93c5fd; }
body.dark-mode .font-btn:hover { background: #475569; border-color: #60a5fa; }

body.dark-mode .dark-toggle { background: #334155; border-color: #475569; }
body.dark-mode .dark-toggle:hover { background: #475569; border-color: #60a5fa; }

/* Tabelas (cap7-02) */
body.dark-mode .method-table th,
body.dark-mode .format-table th { background: #5b21b6; }
body.dark-mode .method-table td,
body.dark-mode .format-table td { border-bottom-color: #334155; color: #cbd5e1; }
body.dark-mode .method-table tr:nth-child(even) td,
body.dark-mode .format-table tr:nth-child(even) td { background: #252f40; }
body.dark-mode .method-table code { background: #3b1f7a; color: #c4b5fd; }

/* Slide mode + dark mode */
body.dark-mode.slide-active .content-wrapper { background: #0f172a; }
body.dark-mode .slide-hud,
body.dark-mode .slide-title-bar {
    background: #1e293b;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
body.dark-mode .slide-title-bar { color: #93c5fd; }
body.dark-mode .slide-hud-btn { border-color: #334155; color: #93c5fd; }
body.dark-mode .slide-hud-btn:hover { background: #306998; border-color: #306998; color: white; }
body.dark-mode .slide-counter { color: #93c5fd; }

/* --- RESPONSIVE SLIDE MODE --- */
@media (max-width: 768px) {
    body.slide-active .content-card {
        width: 95vw;
        padding: 30px 25px;
        max-height: 80vh;
    }

    body.slide-active .content-card h2 {
        font-size: 1.6em;
    }

    body.slide-active .content-card p {
        font-size: 1.15em;
    }

    body.slide-active .content-card ul,
    body.slide-active .content-card ol {
        font-size: 1.1em;
    }
}