/* ================================================
   AI SUPERPOWERS 2026 – Lernplattform Styles
   ================================================ */

:root {
    --bg-primary: #0a0f1e;
    --bg-secondary: #111827;
    --bg-card: #1e293b;
    --bg-card-hover: #263348;
    --bg-input: #0f172a;
    --color-primary: #7c3aed;
    --color-primary-hover: #6d28d9;
    --color-primary-light: rgba(124, 58, 237, 0.15);
    --color-accent: #06b6d4;
    --color-accent-light: rgba(6, 182, 212, 0.15);
    --color-success: #10b981;
    --color-success-light: rgba(16, 185, 129, 0.15);
    --color-warning: #f59e0b;
    --color-warning-light: rgba(245, 158, 11, 0.15);
    --color-danger: #ef4444;
    --color-danger-light: rgba(239, 68, 68, 0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --transition: all 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ================================================
   UTILITIES
   ================================================ */
.hidden { display: none !important; }
.text-muted { color: var(--text-secondary); font-size: 0.9rem; }
.container { max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem; }
.screen { display: none !important; }
.screen.active { display: block !important; }
.view { display: none; }
.view.active { display: block; }

/* ================================================
   BUTTONS
   ================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.4rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary {
    background: var(--color-primary);
    color: white;
}
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
.btn-ghost:hover { background: var(--bg-card); color: var(--text-primary); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-full { width: 100%; }
.back-btn { margin-bottom: 1.5rem; }

/* ================================================
   LOGIN
   ================================================ */
#login-screen {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1a1040 50%, var(--bg-primary) 100%);
}
#login-screen.active {
    display: flex !important;
    align-items: center;
    justify-content: center;
}
.login-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 3rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}
.login-logo { text-align: center; margin-bottom: 2rem; }
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 16px;
    font-size: 1.4rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}
.login-logo h1 { font-size: 1.8rem; font-weight: 800; }
.login-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 0.3rem; }
.login-form { display: flex; flex-direction: column; gap: 1rem; }
.login-footer { text-align: center; color: var(--text-muted); font-size: 0.8rem; margin-top: 2rem; }
.error-text { color: var(--color-danger); font-size: 0.85rem; text-align: center; }

/* ================================================
   FORMS
   ================================================ */
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); }
input[type="text"], input[type="password"] {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}
input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}
.input-group { display: flex; gap: 0.5rem; }
.input-group input { flex: 1; }
code {
    background: var(--bg-input);
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--color-accent);
}

/* ================================================
   HEADER
   ================================================ */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}
.header-left { display: flex; align-items: center; gap: 1rem; }
.header-logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    cursor: pointer;
}
.logo-icon-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 800;
    color: white;
}
.header-title { font-weight: 700; font-size: 1.1rem; }
.header-right { display: flex; align-items: center; gap: 0.5rem; }
.user-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.user-badge.admin { background: var(--color-warning-light); color: var(--color-warning); }
.user-badge.student { background: var(--color-accent-light); color: var(--color-accent); }

/* ================================================
   DASHBOARD
   ================================================ */
.dashboard-header { margin-bottom: 2rem; }
.dashboard-header h2 { font-size: 1.8rem; font-weight: 800; }
.progress-overview { margin-top: 1rem; display: flex; align-items: center; gap: 1rem; }
.progress-bar-container {
    flex: 1;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 4px;
    transition: width 0.5s ease;
    width: 0%;
}
.progress-text { font-size: 0.85rem; color: var(--text-secondary); white-space: nowrap; }

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.2rem;
}

.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.module-card:hover:not(.locked) {
    transform: translateY(-2px);
    border-color: var(--color-primary);
    box-shadow: 0 8px 32px rgba(124, 58, 237, 0.15);
}
.module-card.locked {
    opacity: 0.5;
    cursor: not-allowed;
}
.module-card.locked::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        45deg, transparent, transparent 10px,
        rgba(0,0,0,0.05) 10px, rgba(0,0,0,0.05) 20px
    );
}
.module-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 0.8rem;
}
.module-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-weight: 800;
    font-size: 1rem;
}
.module-number.unlocked { background: var(--color-primary-light); color: var(--color-primary); }
.module-number.locked-num { background: var(--bg-input); color: var(--text-muted); }
.module-lock { font-size: 1.2rem; }
.module-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; line-height: 1.4; }
.module-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
.module-card-footer {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border-color);
}
.module-stat {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.module-stat-icon { font-size: 0.9rem; }
.module-progress-mini {
    flex: 1;
    height: 4px;
    background: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}
.module-progress-mini-fill {
    height: 100%;
    background: var(--color-success);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ================================================
   MODULE DETAIL
   ================================================ */
.module-header { margin-bottom: 1.5rem; }
.module-header h2 { font-size: 1.6rem; font-weight: 800; margin-top: 0.5rem; }
.module-badge {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.3rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 0.3rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}
.tab {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.tab.active { background: var(--color-primary); color: white; }
.tab:hover:not(.active) { background: var(--bg-card); color: var(--text-primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ================================================
   SLIDES
   ================================================ */
.slides-container { max-width: 800px; margin: 0 auto; }
.slide-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2.5rem;
    min-height: 380px;
    animation: fadeIn 0.3s ease;
}
@keyframes fadeIn { from { opacity: 0; transform: translateX(10px); } to { opacity: 1; transform: translateX(0); } }
.slide-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--color-accent);
}
.slide-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}
.slide-card ul li {
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
    color: var(--text-secondary);
}
.slide-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
}
.slide-card p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 0.8rem; }
.slide-card .slide-highlight {
    background: var(--color-primary-light);
    border-left: 3px solid var(--color-primary);
    padding: 1rem 1.2rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1rem 0;
    font-size: 0.95rem;
}
.slide-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1.5rem;
}
.slide-counter { font-size: 0.9rem; color: var(--text-muted); font-weight: 600; }
.slide-dots {
    display: flex;
    justify-content: center;
    gap: 0.4rem;
    margin-top: 1rem;
}
.slide-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}
.slide-dot.active { background: var(--color-primary); width: 24px; border-radius: 4px; }
.slide-dot.visited { background: var(--color-primary); opacity: 0.5; }

/* ================================================
   QUIZ
   ================================================ */
.quiz-container { max-width: 700px; margin: 0 auto; }
.quiz-question-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    animation: fadeIn 0.3s ease;
}
.quiz-progress {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.quiz-progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}
.quiz-progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}
.quiz-question {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}
.quiz-options { display: flex; flex-direction: column; gap: 0.6rem; }
.quiz-option {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}
.quiz-option:hover:not(.selected):not(.correct):not(.wrong) {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}
.quiz-option.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.quiz-option.correct { border-color: var(--color-success); background: var(--color-success-light); }
.quiz-option.wrong { border-color: var(--color-danger); background: var(--color-danger-light); }
.quiz-option-marker {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}
.quiz-option.selected .quiz-option-marker { border-color: var(--color-primary); background: var(--color-primary); color: white; }
.quiz-option.correct .quiz-option-marker { border-color: var(--color-success); background: var(--color-success); color: white; }
.quiz-option.wrong .quiz-option-marker { border-color: var(--color-danger); background: var(--color-danger); color: white; }
.quiz-feedback {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    display: none;
}
.quiz-feedback.correct-feedback { display: block; background: var(--color-success-light); color: var(--color-success); }
.quiz-feedback.wrong-feedback { display: block; background: var(--color-danger-light); color: var(--color-danger); }
.quiz-btn-row { display: flex; justify-content: space-between; margin-top: 1.5rem; }

/* Quiz Results */
.quiz-results {
    text-align: center;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}
.quiz-score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 1rem 0;
}
.quiz-score-circle.good { background: var(--color-success-light); color: var(--color-success); }
.quiz-score-circle.ok { background: var(--color-warning-light); color: var(--color-warning); }
.quiz-score-circle.bad { background: var(--color-danger-light); color: var(--color-danger); }
.quiz-results h3 { font-size: 1.3rem; margin: 1rem 0 0.5rem; }
.quiz-results p { color: var(--text-secondary); }

/* ================================================
   EXERCISES
   ================================================ */
.exercises-container { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.exercise-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
}
.exercise-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.exercise-card > p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1rem; }
.exercise-tasks { display: flex; flex-direction: column; gap: 0.5rem; }
.exercise-task {
    display: flex;
    align-items: flex-start;
    gap: 0.7rem;
    padding: 0.6rem 0;
}
.exercise-task input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
    margin-top: 0.1rem;
    flex-shrink: 0;
    cursor: pointer;
}
.exercise-task label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1.5;
}
.exercise-task input:checked + label { text-decoration: line-through; color: var(--text-muted); }
.exercise-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}
.exercise-badge.hands-on { background: var(--color-accent-light); color: var(--color-accent); }
.exercise-badge.reflection { background: var(--color-warning-light); color: var(--color-warning); }
.exercise-badge.group { background: var(--color-primary-light); color: var(--color-primary); }

/* ================================================
   ADMIN
   ================================================ */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
}
.admin-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.admin-modules-list { display: flex; flex-direction: column; gap: 0.3rem; margin-top: 1rem; }
.admin-module-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.admin-module-row:hover { background: var(--bg-input); }
.admin-module-row span { font-size: 0.9rem; }

/* Toggle Switch */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition);
}
.toggle input:checked + .toggle-slider { background: var(--color-success); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1rem; }
.stat-item { text-align: center; }
.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
}
.stat-label { font-size: 0.75rem; color: var(--text-muted); }

/* ================================================
   TOAST
   ================================================ */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: var(--shadow);
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--color-success); color: var(--color-success); }
.toast.error { border-color: var(--color-danger); color: var(--color-danger); }

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 768px) {
    .container { padding: 1rem; }
    .modules-grid { grid-template-columns: 1fr; }
    .admin-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
    .slide-card { padding: 1.5rem; min-height: 300px; }
    .login-container { margin: 1rem; padding: 2rem; }
    .dashboard-header h2 { font-size: 1.4rem; }
    .header-title { display: none; }
}
@media (max-width: 480px) {
    .tabs { flex-direction: column; }
    .slide-controls { flex-wrap: wrap; gap: 0.5rem; }
}

/* ================================================
   NEW SLIDE SYSTEM
   ================================================ */
.slide-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}
.module-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.module-title-short {
    font-weight: 600;
    color: var(--text-primary);
}
.slide-actions {
    display: flex;
    gap: 0.5rem;
}

/* Slide System - inside tab */
.slide-system {
    padding: 1rem 0;
    max-width: 1000px;
    margin: 0 auto;
}
.slide-progress-top {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.slide-progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-card);
    border-radius: 2px;
    overflow: hidden;
}
.slide-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transition: width 0.3s ease;
}
.slide-progress-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 50px;
    text-align: right;
}

/* Main Slide Area */
.slide-main {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.slide-arrow {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}
.slide-arrow:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.slide-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}
.slide-content-wrapper {
    flex: 1;
}

/* Slide Navigation */
.slide-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}
.slide-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}
.slide-nav-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* Module Tabs Container */
.module-tabs-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem 2rem 2rem;
}

/* Presentation Placeholder */
.presentation-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-top: 1rem;
}
.presentation-placeholder i {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}
.presentation-placeholder h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.presentation-placeholder p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    max-width: 400px;
}

/* ================================================
   KI EDIT PANEL
   ================================================ */
.ki-edit-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 500px;
    max-width: 90vw;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}
.ki-edit-panel.active {
    transform: translateX(0);
}
.ki-edit-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
}
.ki-edit-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
}
.ki-edit-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}
.ki-edit-section {
    margin-bottom: 1.5rem;
}
.ki-edit-section label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.ki-slide-preview {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    max-height: 200px;
    overflow-y: auto;
    font-size: 0.9rem;
}
.ki-textarea {
    width: 100%;
    min-height: 120px;
    padding: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    resize: vertical;
}
.ki-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}
.ki-edit-actions {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.ki-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem;
    color: var(--color-accent);
}
.ki-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.ki-result {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
}
.ki-result label {
    color: var(--color-success);
}
.ki-result-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    margin-top: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    font-size: 0.9rem;
}
.ki-result-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}
.ki-error {
    color: var(--color-danger);
    padding: 1rem;
    background: var(--color-danger-light);
    border-radius: var(--radius-sm);
}

/* OpenRouter API Config in Admin */
.openrouter-config {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.openrouter-config h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}
.api-key-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: monospace;
    font-size: 0.9rem;
}
.api-key-input:focus {
    outline: none;
    border-color: var(--color-primary);
}
.api-info {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.api-info a {
    color: var(--color-accent);
}