/*
 * CSS Design System for shivclassroom
 * Features: Light/Dark mode, Glassmorphism, Pastel Color Palette, Smooth Micro-animations, Custom Charts
 */

/* 1. Global Variables & Themes */
:root {
    /* Font family */
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

    /* Light Theme (Friendly Warm Pastels) */
    --bg-primary: #f6f8fb;
    --bg-secondary: #ebf0f7;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 255, 255, 0.6);
    --border-color: #e2e8f0;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* Theme Accent Colors (Soft Pastels) */
    --color-primary: #6366f1; /* Lavender-Blue */
    --color-primary-light: #e0e7ff;
    --color-secondary: #ec4899; /* Pink-Coral */
    --color-secondary-light: #fce7f3;
    
    /* Emoji Specific Warm Accents */
    --color-😎: #0ea5e9; /* Sky Blue */
    --color-😎-bg: #e0f2fe;
    --color-🤔: #8b5cf6; /* Pastel Purple */
    --color-🤔-bg: #ede9fe;
    --color-🤯: #f43f5e; /* Pastel Rose */
    --color-🤯-bg: #ffe4e6;
    --color-😴: #f59e0b; /* Pastel Yellow/Amber */
    --color-😴-bg: #fef3c7;
    --color-🙋‍♂️: #10b981; /* Sage/Emerald Green */
    --color-🙋‍♂️-bg: #d1fae5;

    /* Utility */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 10px 20px rgba(99, 102, 241, 0.05);
    --shadow-lg: 0 20px 40px rgba(99, 102, 241, 0.1);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* Dark Theme (Deep Glass Pastels) */
    --bg-primary: #0f172a;
    --bg-secondary: #0b0f19;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --color-primary: #818cf8;
    --color-primary-light: rgba(99, 102, 241, 0.15);
    --color-secondary: #f472b6;
    --color-secondary-light: rgba(236, 72, 153, 0.15);

    /* Emoji specific in dark mode (slightly less saturated but bright) */
    --color-😎-bg: rgba(14, 165, 233, 0.15);
    --color-🤔-bg: rgba(139, 92, 246, 0.15);
    --color-🤯-bg: rgba(244, 63, 94, 0.15);
    --color-😴-bg: rgba(245, 158, 11, 0.15);
    --color-🙋‍♂️-bg: rgba(16, 185, 129, 0.15);

    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 25px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* 2. Reset & General Layouts */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Blur Blobs */
.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.45;
    pointer-events: none;
    transition: transform var(--transition-normal);
}

.shape-1 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--color-primary-light) 0%, transparent 80%);
    top: -150px;
    right: -100px;
    animation: floating-blob 25s infinite alternate ease-in-out;
}

.shape-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-secondary-light) 0%, transparent 80%);
    bottom: -200px;
    left: -150px;
    animation: floating-blob 35s infinite alternate-reverse ease-in-out;
}

@keyframes floating-blob {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(50px, 80px) scale(1.1); }
    100% { transform: translate(-30px, -50px) scale(0.9); }
}

/* Header Component */
.app-header {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color var(--transition-normal);
}

[data-theme="dark"] .app-header {
    background-color: rgba(15, 23, 42, 0.3);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.logo-icon {
    font-size: 28px;
    animation: wave-logo 4s infinite ease-in-out;
}

@keyframes wave-logo {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(10deg) scale(1.05); }
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-text span {
    color: var(--color-primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Navigation and Profile widgets */
.user-profile-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 1px solid var(--border-color);
    padding-left: 16px;
}

.user-badge {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.role-tag {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    border-radius: 100px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.user-email {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    max-width: 150px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* App Main Container */
.app-main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 24px;
    position: relative;
}

/* 3. Reusable UI Components */
.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 32px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    margin-bottom: 24px;
}

.card-header h2 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.card-header .subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: 6px;
}

.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.input-icon-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon-wrapper i {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    width: 18px;
    height: 18px;
    pointer-events: none;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"] {
    width: 100%;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.4);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 15px;
    font-weight: 500;
    outline: none;
    transition: all var(--transition-fast);
}

[data-theme="dark"] input {
    background-color: rgba(15, 23, 42, 0.4);
}

.input-icon-wrapper input {
    padding-left: 44px;
}

input:focus {
    border-color: var(--color-primary);
    background-color: white;
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

[data-theme="dark"] input:focus {
    background-color: rgba(15, 23, 42, 0.8);
}

.form-help {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-family);
    font-size: 15px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.btn-primary:hover {
    background-color: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--bg-secondary);
}

.btn-danger {
    background-color: #ef4444;
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
    border-radius: var(--radius-sm);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.05);
}

.icon-btn i {
    width: 20px;
    height: 20px;
}

/* Info Box */
.info-box {
    display: flex;
    gap: 12px;
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 16px 0;
    color: var(--text-primary);
}

.info-box i {
    flex-shrink: 0;
    color: var(--color-primary);
    width: 22px;
    height: 22px;
}

.info-box p {
    font-size: 13.5px;
    line-height: 1.5;
    font-weight: 500;
}

/* Loading Views */
.view-section {
    width: 100%;
    animation: fade-in-view 0.5s ease-out;
}

@keyframes fade-in-view {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.loader-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 350px;
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-primary-light);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 24px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 4. AUTH PAGE SPECIFIC */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.auth-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 40px;
    width: 100%;
    max-width: 480px;
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h2 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-top: 6px;
}

.auth-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
}

.auth-tab {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: none;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: calc(var(--radius-md) - 2px);
    transition: all var(--transition-fast);
}

.auth-tab.active {
    background-color: white;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .auth-tab.active {
    background-color: #334155;
    color: white;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
    animation: fade-in 0.3s ease-out;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Role Selector Styles */
.role-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 8px;
}

.role-option {
    cursor: pointer;
}

.role-option input[type="radio"] {
    display: none;
}

.role-card {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    transition: all var(--transition-fast);
    background-color: rgba(255, 255, 255, 0.3);
}

.role-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.role-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 4px;
}

.role-card p {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.3;
}

.role-option input[type="radio"]:checked + .role-card {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
}

/* 5. DASHBOARDS GENERAL */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 4fr 5fr;
    }
}

/* Join Classroom Custom Styling */
.join-card .card-illustration {
    font-size: 64px;
    margin-bottom: 16px;
    animation: bounce-icon 2s infinite ease-in-out;
}

@keyframes bounce-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.code-input-group {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.code-input-group input {
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 2px;
    text-align: center;
    font-size: 18px;
}

/* Recent and Active Lists */
.recent-list-container,
.classrooms-list-container {
    min-height: 200px;
    display: flex;
    align-items: stretch;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    width: 100%;
    color: var(--text-secondary);
    padding: 20px;
}

.empty-icon {
    font-size: 42px;
    margin-bottom: 12px;
}

.margin-auto {
    margin-left: auto;
    margin-right: auto;
}

.mt-4 { margin-top: 16px; }

/* Grid of Cards */
.recent-grid,
.classrooms-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    width: 100%;
    align-content: start;
}

@media (min-width: 600px) and (max-width: 900px) {
    .recent-grid, .classrooms-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.class-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 16px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.class-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    border-color: var(--color-primary);
}

.class-card-header h4 {
    font-size: 18px;
    font-weight: 700;
}

.class-card-header .code {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-top: 4px;
    letter-spacing: 0.5px;
}

.class-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.class-card-footer span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Code Generator Custom Widget */
.code-generator-wrapper {
    display: flex;
    gap: 12px;
}

.code-generator-wrapper input {
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

/* 6. CLASSROOM LIVE WORKSPACE (Teacher & Student) */
.classroom-header-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    margin-bottom: 24px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}

.classroom-info {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.classroom-info h1 {
    font-size: 22px;
    font-weight: 700;
}

.class-code-pill {
    font-size: 13px;
    font-weight: 700;
    background-color: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    color: var(--text-secondary);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: 4px;
}

.status-indicator.live {
    background-color: #fee2e2;
    color: #ef4444;
    animation: pulse-red 2s infinite ease-in-out;
}

@keyframes pulse-red {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.96); }
}

.code-share-badge {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.code-share-badge strong {
    font-weight: 800;
    letter-spacing: 0.5px;
}

.icon-btn-inline {
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 2px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.icon-btn-inline:hover {
    background-color: rgba(99, 102, 241, 0.15);
    transform: scale(1.1);
}

.icon-btn-inline i {
    width: 14px;
    height: 14px;
}

/* 7. STUDENT INTERFACE: EMOJI feedback */
.emoji-panel-card {
    max-width: 800px;
    margin: 0 auto;
}

.emoji-selector-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 32px 0;
}

@media (min-width: 500px) {
    .emoji-selector-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.emoji-feedback-btn {
    border: 2px solid var(--border-color);
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    outline: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.emoji-feedback-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: calc(var(--radius-md) - 2px);
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.emoji-glyph {
    font-size: 42px;
    transition: transform var(--transition-fast);
    user-select: none;
}

.emoji-text {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.emoji-desc {
    font-size: 11px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.3;
}

.emoji-feedback-btn:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.emoji-feedback-btn:hover .emoji-glyph {
    transform: scale(1.2);
}

/* Distinct hover styles for each emoji option */
.emoji-feedback-btn[data-emoji="😎"]:hover { border-color: var(--color-😎); background-color: var(--color-😎-bg); }
.emoji-feedback-btn[data-emoji="🤔"]:hover { border-color: var(--color-🤔); background-color: var(--color-🤔-bg); }
.emoji-feedback-btn[data-emoji="🤯"]:hover { border-color: var(--color-🤯); background-color: var(--color-🤯-bg); }
.emoji-feedback-btn[data-emoji="😴"]:hover { border-color: var(--color-😴); background-color: var(--color-😴-bg); }
.emoji-feedback-btn[data-emoji="🙋‍♂️"]:hover { border-color: var(--color-🙋‍♂️); background-color: var(--color-🙋‍♂️-bg); }

/* Selected Feedback State */
.emoji-feedback-btn.selected {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-md);
}

.emoji-feedback-btn.selected[data-emoji="😎"] { border-color: var(--color-😎); background-color: var(--color-😎-bg); }
.emoji-feedback-btn.selected[data-emoji="🤔"] { border-color: var(--color-🤔); background-color: var(--color-🤔-bg); }
.emoji-feedback-btn.selected[data-emoji="🤯"] { border-color: var(--color-🤯); background-color: var(--color-🤯-bg); }
.emoji-feedback-btn.selected[data-emoji="😴"] { border-color: var(--color-😴); background-color: var(--color-😴-bg); }
.emoji-feedback-btn.selected[data-emoji="🙋‍♂️"] { border-color: var(--color-🙋‍♂️); background-color: var(--color-🙋‍♂️-bg); }

.emoji-feedback-btn.selected::after {
    border-color: inherit;
}

.emoji-feedback-btn.disabled {
    opacity: 0.6;
    pointer-events: none;
}

/* Feedback Status Footer */
.feedback-status-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    font-size: 14px;
    font-weight: 500;
    min-height: 60px;
}

.status-placeholder {
    color: var(--text-muted);
}

.status-success-message {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #10b981;
    animation: bounce-in 0.4s ease-out;
}

@keyframes bounce-in {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* 8. TEACHER INTERFACE: ANALYTICS & AI REPORT */
.dashboard-analytics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 950px) {
    .dashboard-analytics-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.active-students-count {
    font-size: 13px;
    font-weight: 600;
    background-color: var(--bg-secondary);
    padding: 4px 12px;
    border-radius: 12px;
    color: var(--text-secondary);
}

.pulse-icon {
    color: #ef4444;
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

/* Custom Analytics Chart rows */
.custom-analytics-chart {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 8px;
}

.chart-row {
    background-color: rgba(255, 255, 255, 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    transition: background-color var(--transition-fast);
}

[data-theme="dark"] .chart-row {
    background-color: rgba(30, 41, 59, 0.3);
}

.row-info {
    display: flex;
    align-items: center;
}

.row-emoji {
    font-size: 26px;
    margin-right: 12px;
}

.row-labels {
    display: flex;
    flex-direction: column;
}

.label-title {
    font-size: 14px;
    font-weight: 700;
}

.label-desc {
    font-size: 11px;
    color: var(--text-secondary);
}

.row-count {
    margin-left: auto;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}

.progress-bar-container {
    height: 8px;
    background-color: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    width: 100%;
}

.progress-bar {
    height: 100%;
    border-radius: 10px;
    transition: width 0.8s cubic-bezier(0.19, 1, 0.22, 1);
    background-color: var(--color-primary);
}

/* Custom colors for each emoji response bar */
.progress-😎 { background-color: var(--color-😎); }
.progress-🤔 { background-color: var(--color-🤔); }
.progress-🤯 { background-color: var(--color-🤯); }
.progress-😴 { background-color: var(--color-😴); }
.progress-🙋‍♂️ { background-color: var(--color-🙋‍♂️); }

.row-percent {
    position: absolute;
    right: 18px;
    bottom: 24px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

/* AI Report Area Styles */
.ai-report-body {
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.ai-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--text-secondary);
}

.brain-animation {
    font-size: 48px;
    animation: pulse-brain 2s infinite ease-in-out;
    margin-bottom: 16px;
}

@keyframes pulse-brain {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.15) rotate(5deg); filter: drop-shadow(0 0 15px rgba(99, 102, 241, 0.4)); }
}

.ai-report-content {
    animation: fade-in 0.5s ease-out;
}

.markdown-body {
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--text-primary);
}

.markdown-body h4 {
    font-size: 16px;
    font-weight: 700;
    margin-top: 16px;
    margin-bottom: 8px;
    color: var(--color-primary);
}

.markdown-body ul {
    padding-left: 20px;
    margin-bottom: 12px;
}

.markdown-body li {
    margin-bottom: 6px;
}

.markdown-body blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: 12px;
    color: var(--text-secondary);
    margin: 12px 0;
    font-style: italic;
    background-color: var(--bg-secondary);
    padding: 8px 12px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* 9. MODALS */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fade-in 0.25s ease-out;
}

.modal-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: slide-up-modal 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

@keyframes slide-up-modal {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-body {
    padding: 24px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

/* 10. TOAST NOTIFICATIONS */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 380px;
    width: 100%;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: toast-slide-in 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--color-primary);
}

.toast.toast-success::before { background-color: #10b981; }
.toast.toast-error::before { background-color: #ef4444; }
.toast.toast-info::before { background-color: #0ea5e9; }

@keyframes toast-slide-in {
    from { transform: translateX(50px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-exit {
    animation: toast-slide-out 0.3s forwards ease-in;
}

@keyframes toast-slide-out {
    to { transform: translateX(100%); opacity: 0; }
}

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.toast-success .toast-icon { color: #10b981; }
.toast-error .toast-icon { color: #ef4444; }
.toast-info .toast-icon { color: #0ea5e9; }

.toast-message {
    font-size: 13.5px;
    font-weight: 500;
}

/* Dashboard Mode Toggle */
.dashboard-toggle-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.dashboard-toggle-container {
    background-color: var(--bg-secondary);
    padding: 6px;
    border-radius: 100px;
    display: flex;
    gap: 4px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.toggle-mode-btn {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    background: none;
    border: none;
    padding: 10px 24px;
    border-radius: 100px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.toggle-mode-btn i {
    width: 18px;
    height: 18px;
}

.toggle-mode-btn:hover {
    color: var(--text-primary);
}

.toggle-mode-btn.active {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
}

.dashboard-panel-content {
    animation: fade-in 0.4s ease-out;
}