/* Global Styles */
:root {
    --primary-color: #4A90E2; /* Blue */
    --secondary-color: #50E3C2; /* Teal */
    --accent-color: #F5A623; /* Orange */
    --success-color: #7ED321; /* Green */
    --danger-color: #D0021B; /* Red */
    --warning-color: #F8E71C; /* Yellow */

    --primary-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --text-color-dark: #2c3e50; /* Dark Blue/Grey */
    --text-color-light: #ffffff;
    --text-color-medium: #555;
    --text-color-subtle: #888;
    
    --background-light: #f8f9fa; /* Very light grey */
    --background-medium: #e9ecef; /* Light grey */
    --background-dark: #343a40; /* Dark grey */
    --card-background: #ffffff;

    --border-color: #dee2e6; /* Light grey border */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-sm: 4px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
    
    --font-family-sans: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --transition-speed: 0.2s;
    --transition-func: ease-in-out;
    --transition: all var(--transition-speed) var(--transition-func);
}

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

body {
    font-family: var(--font-family-sans);
    background-color: var(--background-light);
    color: var(--text-color-dark);
    line-height: 1.6;
    height: 100vh; /* Ensure body takes full height */
    display: flex; /* Use flex to manage layout */
    flex-direction: column;
}

.page {
    display: none; /* Hide pages by default */
    flex-grow: 1; /* Allow page content to grow */
    overflow-y: auto; /* Add scroll if content overflows */
}

.page.active {
    display: flex; /* Show active page */
    flex-direction: column; /* Ensure page content flows vertically */
}

/* Landing Page Styles */
#landing-page {
    background: linear-gradient(135deg, #ffffff 0%, #eef2f7 100%);
}

.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.landing-nav .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color-dark);
}

.landing-nav .header-logo {
    height: 35px;
}

.landing-nav-buttons {
    display: flex;
    gap: 1rem;
}

.landing-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center; /* Center content horizontally */
}

#landing-page .hero-section {
    display: flex;
    align-items: center;
    justify-content: center; /* Center hero items */
    gap: 4rem;
    padding: 4rem 3rem;
    text-align: left; /* Align text left within content block */
    max-width: 1200px; /* Limit hero width */
    width: 100%;
    flex-grow: 1; /* Allow hero to take available space */
}

#landing-page .hero-content {
    max-width: 550px;
}

#landing-page .hero-content h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
    color: var(--text-color-dark);
}

#landing-page .hero-content p {
    font-size: 1.1rem;
    color: var(--text-color-medium);
    margin-bottom: 2rem;
}

#landing-page .cta-button {
    padding: 0.9rem 1.8rem;
    font-size: 1rem;
    font-weight: 600;
}

#landing-page .hero-image img {
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius-lg);
    /* Optional shadow: */
    /* box-shadow: var(--shadow-lg); */
}

.landing-footer {
    text-align: center;
    padding: 1rem;
    color: var(--text-color-subtle);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
    background-color: #ffffff;
}

/* Authentication Page Styles */
.auth-page {
    background-color: var(--background-medium);
    justify-content: center;
    align-items: center;
}

.auth-container {
    background-color: var(--card-background);
    padding: 2.5rem 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 450px;
    width: 90%;
    text-align: center;
}

.auth-container h2 {
    margin-bottom: 0.5rem;
    color: var(--text-color-dark);
}

.auth-container p {
    margin-bottom: 2rem;
    color: var(--text-color-medium);
}

.auth-container .input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.auth-container .input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color-medium);
}

.auth-container .auth-btn {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.auth-switch {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-color-medium);
}

.link-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-weight: 600;
    padding: 0;
}

.link-btn:hover {
    text-decoration: underline;
}

.social-login {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.social-login span {
    font-size: 0.8rem;
    color: var(--text-color-subtle);
    margin-bottom: 1rem;
    display: block;
    font-weight: 500;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color-medium);
}

.social-btn:hover {
    background-color: var(--background-medium);
    border-color: #ccc;
}

.social-btn i {
    font-size: 1.2rem;
}

.social-btn.google:hover { color: #DB4437; }
.social-btn.facebook:hover { color: #4267B2; }
.social-btn.apple:hover { color: #000000; }


/* Main App Container Styles */
.app-container {
    display: flex;
    height: 100vh; /* Ensure full height */
    overflow: hidden; /* Prevent body scroll when app is shown */
}

/* Sidebar Styles */
.sidebar {
    width: 260px;
    background-color: var(--text-color-dark); /* Dark background for sidebar */
    color: var(--text-color-light);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    box-shadow: var(--shadow-md);
    z-index: 10; /* Ensure sidebar is above content */
}

.sidebar-header {
    display: flex;
    justify-content: center; /* Center the logo within the header */
    align-items: center;
    gap: 0.8rem;
    padding: 0 0.5rem 1.5rem 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    /* height: 30px; */ /* Remove fixed height */
    width: 100%; /* Make logo take full width of header padding */
    max-width: 180px; /* Set a max-width to prevent it getting too large */
    height: auto; /* Maintain aspect ratio */
    object-fit: contain; /* Ensure the whole logo fits */
}

.sidebar-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color-light);
}

.sidebar-nav {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar .nav-btn {
    background: none;
    border: none;
    color: #bdc3c7; /* Lighter grey for inactive */
    padding: 0.8rem 1rem;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
}

.sidebar .nav-btn i {
    width: 20px; /* Ensure icon alignment */
    text-align: center;
    font-size: 1.1rem; /* Slightly larger icons */
}

.sidebar .nav-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color-light);
}

.sidebar .nav-btn.active {
    background: var(--primary-gradient);
    color: var(--text-color-light);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.sidebar-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
        flex-direction: column;
    gap: 0.5rem;
    }

.sidebar-footer .nav-btn {
    color: #95a5a6; /* Slightly darker grey for footer items */
    }

.user-profile-snippet {
    display: none; /* Hide snippet */
}

/* Main Content Area Styles */
.main-content {
    flex: 1;
    padding: 2rem 2.5rem;
    overflow-y: auto; /* Restore scrolling for main content */
    background-color: var(--background-light);
    }

/* General Page Styles */
.page {
    animation: fadeIn 0.3s ease-in-out;
    }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
    }

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center; /* Align items vertically */
}

.page-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-color-dark);
}
.page-header p {
    color: var(--text-color-medium);
    font-size: 1rem;
}


/* Dashboard Page */
#dashboard-page .page-header h2 {
    margin-bottom: 0; /* Remove bottom margin if no subtitle */
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transition: var(--transition);
}

.dashboard-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.dashboard-card .card-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}
/* Specific card icon colors (optional) */
.dashboard-card.create-new .card-icon { color: var(--primary-color); }
.dashboard-card.my-flashcards .card-icon { color: var(--secondary-color); }
.dashboard-card.study-path .card-icon { color: var(--accent-color); }
.dashboard-card.learning-games .card-icon { color: var(--success-color); }

.dashboard-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color-dark);
}

.dashboard-card p {
    font-size: 0.9rem;
    color: var(--text-color-medium);
    flex-grow: 1; /* Push button to bottom */
    margin-bottom: 1rem;
}

.dashboard-card button {
    align-self: flex-start; /* Align button left */
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
}


/* Upload Material Page */
.upload-container {
    display: flex;
        gap: 2rem;
    flex-direction: column; /* Stack options and config on smaller screens */
}

.upload-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    flex-grow: 1;
}

.upload-box {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.upload-icon {
        font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-box h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.upload-box p {
    font-size: 0.9rem;
    color: var(--text-color-subtle);
    margin-bottom: 1rem;
}

.file-upload-box button,
.url-input-box .add-url-btn {
    margin-top: 1rem;
    margin-bottom: 1rem; /* Add space before drop zone/list */
}

.file-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    width: 100%;
    margin-top: 1rem; /* Space from button */
    background-color: var(--background-light);
    transition: var(--transition);
}
.file-drop-zone:hover {
    border-color: var(--primary-color);
    background-color: #eaf2fa;
}
.file-drop-zone p {
    margin: 0;
    color: var(--text-color-subtle);
    font-weight: 500;
}

.uploaded-files-list, .added-urls-list {
    margin-top: 1rem;
    width: 100%;
    text-align: left;
    font-size: 0.9rem;
    max-height: 100px; /* Limit height */
    overflow-y: auto;
}
/* Add styles for file/URL items */

.text-paste-box textarea {
    width: 100%;
    min-height: 150px;
    resize: vertical;
    margin-top: 1rem;
}

.url-input-box input[type="url"] {
    width: 100%;
    margin-top: 1rem;
}

.upload-config {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    min-width: 280px; /* Ensure config area has min width */
}

.upload-config h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.upload-config .input-group {
    margin-bottom: 1rem;
}

.upload-config label {
    font-weight: 500;
    margin-bottom: 0.3rem;
    display: block;
    font-size: 0.9rem;
}

.generate-flashcards-btn {
    width: 100%;
    margin-top: 1.5rem;
    padding: 0.8rem;
    font-size: 1rem;
}
.generate-flashcards-btn i {
    margin-right: 0.5rem;
}

/* Generated Cards Review Page */
#generated-cards-page .page-header {
    align-items: baseline; /* Align title and count */
}
#generated-cards-page .page-header p {
    font-size: 0.9rem;
    color: var(--text-color-subtle);
}

.generated-cards-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card-preview-area {
    width: 100%;
    max-width: 600px;
    perspective: 1000px; /* For flip effect */
}

.flashcard-viewer {
    position: relative;
    width: 100%;
    padding-bottom: 60%; /* Aspect ratio */
    cursor: pointer;
}

.flashcard-viewer-inner {
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
}

.flashcard-viewer.flipped .flashcard-viewer-inner {
    transform: rotateY(180deg);
}

.flashcard-viewer-front,
.flashcard-viewer-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Safari */
    backface-visibility: hidden;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    border: 1px solid var(--border-color);
}
.flashcard-viewer-front span, .flashcard-viewer-back span {
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 0.8rem;
    color: var(--text-color-subtle);
    font-weight: 600;
}


.flashcard-viewer-back {
    transform: rotateY(180deg);
}

.question-preview, .answer-preview {
    font-size: 1.2rem;
    color: var(--text-color-dark);
}

.flip-card-btn {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity var(--transition-speed);
}
.flip-card-btn:hover {
    opacity: 1;
}


.card-navigation {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#generated-card-indicator {
    font-weight: 500;
    color: var(--text-color-medium);
}

.generated-cards-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    width: 100%;
    max-width: 700px;
    margin: 0 auto; /* Center actions */
}
.generated-cards-actions button {
    padding: 0.7rem 1.2rem;
}
.generated-cards-actions button i {
    margin-right: 0.4rem;
}

/* My Flashcards (Library) Page */
.library-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

#deck-search-input {
    min-width: 250px;
    padding: 0.5rem 0.8rem;
}

.library-tabs {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.library-tabs .tab-btn {
    padding: 0.8rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color-medium);
    transition: var(--transition);
    margin-bottom: -1px; /* Overlap border */
}

.library-tabs .tab-btn:hover {
    color: var(--text-color-dark);
}

.library-tabs .tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

.library-content {
    display: none;
}
.library-content.active {
    display: block;
}

.decks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.deck-card {
    background-color: var(--card-background);
    padding: 1.2rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.deck-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.deck-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.deck-meta {
    font-size: 0.85rem;
    color: var(--text-color-subtle);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.deck-actions {
    display: flex;
    gap: 0.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    margin-top: auto; /* Push actions to bottom */
}

.deck-actions .action-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 0.4rem 0.7rem;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-color-medium);
}
.deck-actions .action-btn:hover {
    background-color: var(--background-medium);
    border-color: #ccc;
}
.deck-actions .action-btn.study-deck { color: var(--primary-color); border-color: var(--primary-color); }
.deck-actions .action-btn.study-deck:hover { background-color: var(--primary-color); color: white; }
.deck-actions .action-btn.delete-deck { color: var(--danger-color); }
.deck-actions .action-btn.delete-deck:hover { background-color: var(--danger-color); color: white; }

/* Smart Study Path Page */
.study-section {
    margin-bottom: 2.5rem;
}

.study-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.study-item {
    background-color: var(--card-background);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    border-left: 5px solid; /* Indicator color */
}

/* Indicator colors */
.study-item.scheduled { border-left-color: var(--accent-color); }
.study-item.completed { border-left-color: var(--success-color); }
.study-item.suggestion { border-left-color: var(--secondary-color); }

.item-info h5 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}
.item-info p {
    font-size: 0.9rem;
    color: var(--text-color-medium);
}

.item-actions {
    display: flex;
    gap: 0.8rem;
    flex-shrink: 0; /* Prevent buttons from shrinking */
}
.item-actions button {
    padding: 0.5rem 1rem;
}

.recommendation-engine-promo {
    background-color: #eaf2fa; /* Light blue background */
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--primary-color);
    text-align: center;
}
.recommendation-engine-promo h4 {
    border: none; /* Remove border */
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}
.recommendation-engine-promo p {
    color: var(--text-color-medium);
    margin-bottom: 1rem;
}


/* Learning Games Page */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.game-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition);
}
.game-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.game-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.game-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.game-card p {
    font-size: 0.9rem;
    color: var(--text-color-medium);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.game-card button {
    margin-top: auto; /* Push button to bottom */
}

.user-progress-summary {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.user-progress-summary h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.progress-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.progress-leaderboard h5,
.progress-achievements h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-medium);
    margin-bottom: 0.8rem;
}
/* Add placeholder styles for leaderboard/achievements content */

.gamification-stats {
    display: flex;
    justify-content: space-around; /* Distribute stats */
    gap: 1.5rem;
    flex-wrap: wrap; /* Wrap on smaller screens */
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* === Start: Games Page - Leaderboard & Achievements === */
.leaderboard-list, .achievements-list {
    list-style: none; /* Remove default list bullets/numbers */
    padding-left: 0;
    margin-top: 0.5rem; /* Space below title */
    margin-bottom: 1rem; /* Space before 'View More' link */
}

.leaderboard-list li, .achievements-list li {
    display: flex;
    align-items: center;
    gap: 0.8rem; /* Space between elements in a list item */
    padding: 0.5rem 0.2rem; /* Add some padding */
    border-bottom: 1px solid var(--background-medium); /* Subtle separator */
    font-size: 0.9rem;
}

.leaderboard-list li:last-child, .achievements-list li:last-child {
    border-bottom: none; /* No border for the last item */
}

/* Leaderboard specific */
.leaderboard-list .rank {
    font-weight: 600;
    color: var(--text-color-medium);
    min-width: 30px; /* Align ranks */
    text-align: right;
}

.leaderboard-list .name {
    flex-grow: 1; /* Take available space */
    font-weight: 500;
    color: var(--text-color-dark);
}

.leaderboard-list .score {
    font-weight: 600;
    color: var(--primary-color);
}

/* Achievements specific */
.achievements-list .achievement-icon {
    font-size: 1.3rem;
    width: 25px; /* Align icons */
    text-align: center;
}

.achievements-list .achievement-icon.gold { color: #ffd700; }
.achievements-list .achievement-icon.silver { color: #c0c0c0; }
.achievements-list .achievement-icon.bronze { color: #cd7f32; }

.achievements-list .name {
    flex-grow: 1;
    font-weight: 500;
    color: var(--text-color-dark);
}

.achievements-list .date {
    font-size: 0.8rem;
    color: var(--text-color-subtle);
    font-style: italic;
}

.view-more-link {
    display: block; /* Make it block level */
    text-align: right;
    font-size: 0.85rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: -0.5rem; /* Pull it closer to the list */
}

.view-more-link:hover {
    text-decoration: underline;
}
/* === End: Games Page - Leaderboard & Achievements === */

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

.stat-card h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color-medium);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}
.tooltip {
    cursor: help;
    color: var(--text-color-subtle);
}

.score-display {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}
.score-display.good { color: var(--success-color); }
/* Add other score colors (e.g., warning, danger) */

.stat-card span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color-subtle);
}

.badge-display {
    font-size: 1.5rem; /* Size of icon */
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}
.badge-display i {
    color: #ffd700; /* Gold color for badge */
    margin-bottom: 0.3rem; /* Space between icon and text */
}
.badge-display span {
     font-size: 0.9rem;
     font-weight: 600;
     color: var(--text-color-dark);
}

/* Study Session Page */
.study-session-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem; /* Reduced margin */
}
.back-to-library-btn {
    padding: 0.5rem 1rem;
    flex-shrink: 0; /* Prevent shrinking */
}
.study-session-header h3 {
    flex-grow: 1; /* Take available space */
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}
.study-progress-indicator {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-width: 200px; /* Ensure progress bar has width */
    flex-shrink: 0;
}
.progress-bar-study {
    flex-grow: 1;
    height: 8px;
    background-color: var(--background-medium);
    border-radius: 4px;
    overflow: hidden;
}
.progress-fill-study {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}
#study-progress-text {
    font-size: 0.9rem;
    color: var(--text-color-medium);
    font-weight: 500;
}

.study-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem; /* Space between card and controls */
    flex-grow: 1; /* Allow study area to fill space */
    justify-content: center; /* Center content vertically if less space needed */
    padding-bottom: 2rem; /* Add padding at bottom */
}

.flashcard-study-container {
    width: 100%;
    max-width: 700px; /* Max width for study card */
    perspective: 1200px;
}

.flashcard-study {
    position: relative;
    width: 100%;
    padding-bottom: 55%; /* Aspect ratio for study card */
}

.flashcard-study-inner {
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-lg);
}

.flashcard-study.flipped .flashcard-study-inner {
    transform: rotateY(180deg);
}

.flashcard-study-front,
.flashcard-study-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Safari */
    backface-visibility: hidden;
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    overflow-y: auto; /* Allow scrolling for long content */
}
.flashcard-study-front span, .flashcard-study-back span {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-color-subtle);
    font-weight: 600;
    text-transform: uppercase;
}


.flashcard-study-back {
    transform: rotateY(180deg);
}

.study-question, .study-answer {
    font-size: 1.3rem; /* Larger text for studying */
    color: var(--text-color-dark);
    line-height: 1.5;
}

.see-more-btn {
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.study-session-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    width: 100%;
    max-width: 500px; /* Limit control width */
}

.study-session-controls .control-btn {
    padding: 0.8rem 1.5rem;
    min-width: 120px; /* Ensure buttons have decent width */
    font-size: 0.95rem;
}
.study-session-controls .control-btn i {
    margin-right: 0.4rem;
    margin-left: -0.2rem; /* Adjust icon spacing */
}
.study-session-controls .control-btn.secondary i {
     margin-right: -0.2rem;
     margin-left: 0.4rem; /* Adjust icon spacing for next button */
}


/* Settings Page */
#settings-page p {
    font-size: 1rem;
    color: var(--text-color-medium);
}


/* Shared Component Styles */
.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-color-medium);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 0.7rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
    background-color: #fff; /* Ensure white background */
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* Buttons */
.primary-btn, .secondary-btn, .success-btn, .danger-btn, .cta-button {
    padding: 0.7rem 1.2rem;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex; /* Align icon and text */
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    line-height: 1.4; /* Ensure text height is consistent */
}
.primary-btn i, .secondary-btn i, .success-btn i, .danger-btn i, .cta-button i {
    font-size: 1em; /* Match icon size to font size */
}


.primary-btn, .cta-button {
    background: var(--primary-gradient);
    color: var(--text-color-light);
    box-shadow: var(--shadow-sm);
}
.primary-btn:hover, .cta-button:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.secondary-btn {
    background-color: var(--card-background);
    color: var(--text-color-dark);
    border: 1px solid var(--border-color);
}
.secondary-btn:hover {
    background-color: var(--background-medium);
    border-color: #ccc;
}

.success-btn {
    background-color: var(--success-color);
    color: var(--text-color-light);
    box-shadow: var(--shadow-sm);
}
.success-btn:hover {
    background-color: #6ac41c;
    box-shadow: var(--shadow-md);
}

.danger-btn {
    background-color: var(--danger-color);
    color: var(--text-color-light);
    box-shadow: var(--shadow-sm);
}
.danger-btn:hover {
    background-color: #b00216;
    box-shadow: var(--shadow-md);
}

/* Responsive Adjustments */
@media (max-width: 1200px) {
    #landing-page .hero-section {
    gap: 2rem;
        padding: 3rem 2rem;
    }
    #landing-page .hero-content h1 {
        font-size: 2.5rem;
    }
    #landing-page .hero-image img {
        max-width: 400px;
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 220px; /* Slightly smaller sidebar */
    }
    .main-content {
        padding: 1.5rem;
    }
    .dashboard-grid, .decks-grid, .games-grid, .upload-options, .progress-sections {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}
    #landing-page .hero-section {
    flex-direction: column;
    text-align: center;
    }
    #landing-page .hero-content {
        order: 2; /* Text below image */
    }
    #landing-page .hero-image {
        order: 1;
    margin-bottom: 2rem;
}
    #landing-page .hero-image img {
        max-width: 350px;
    }
     .landing-nav { padding: 1rem 1.5rem; }
     .study-item { flex-direction: column; align-items: flex-start; }
     .item-actions { margin-top: 0.8rem; }
}

@media (max-width: 768px) {
    .sidebar {
        /* Consider a collapsed or mobile-first sidebar for very small screens */
        /* For now, just make it smaller */
        width: 60px; /* Example collapsed width */
        padding: 1.5rem 0.5rem;
    }
    .sidebar-header .sidebar-title, .sidebar .nav-btn span, .username-display {
         /* Hide text in collapsed view */
         /* display: none; */
         /* OR handle with JS toggle */
    }
     .sidebar-header { justify-content: center; } /* Center logo */
     .sidebar .nav-btn { justify-content: center; } /* Center icons */
     .user-profile-snippet { display: none; } /* Hide snippet */

    .main-content {
    padding: 1rem;
}
    .page-header {
        flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}
    .page-header h2 { font-size: 1.5rem; }
    .library-controls { flex-direction: column; align-items: stretch; gap: 0.5rem; }
    #deck-search-input { min-width: auto; }
    .upload-container { flex-direction: column; }
    .study-session-header { flex-direction: column; gap: 0.8rem; align-items: stretch; }
    .study-session-header h3 { text-align: left; order: 1; }
    .back-to-library-btn { order: 2; align-self: flex-start;}
    .study-progress-indicator { order: 3; min-width: auto; }
    .auth-container { padding: 2rem 1.5rem; }
    .landing-nav .logo span { display: none; } /* Hide text logo */
    .landing-nav-buttons { gap: 0.5rem; }
}

@media (max-width: 576px) {
    body { font-size: 14px; /* Slightly smaller base font */ }
    .dashboard-grid, .decks-grid, .games-grid, .upload-options {
        grid-template-columns: 1fr; /* Single column */
        gap: 1rem;
    }
    .auth-container { padding: 1.5rem 1rem; }
    #landing-page .hero-content h1 { font-size: 2rem; }
    #landing-page .hero-content p { font-size: 1rem; }
    .study-question, .study-answer { font-size: 1.1rem; }
    .flashcard-study-front, .flashcard-study-back { padding: 1.5rem; }
    .flashcard-viewer-front, .flashcard-viewer-back { padding: 1.5rem; }
    .question-preview, .answer-preview { font-size: 1rem; }

    /* Further sidebar adjustments might be needed, maybe a toggle button */
}

/* === Upload Page Enhancements === */

/* --- Multi-Text Block Styling --- */
#text-blocks-container {
    width: 100%; /* Ensure container takes full width */
    margin-bottom: 10px; /* Space before the 'Add' button */
}

.text-block {
    position: relative; /* Needed for positioning the remove button */
    margin-bottom: 15px; /* Space between text blocks */
    padding: 10px;
    background-color: var(--background-color); /* Slightly different background */
    border: 1px dashed var(--border-color); /* Use dashed border for distinction */
    border-radius: 5px;
}

.text-block:first-child {
    /* Maybe slightly different style for the first block if needed */
     border-style: solid; /* Keep first block border solid */
}

.text-block textarea.text-block-input {
    width: 100%; /* Ensure textarea fills the block */
    min-height: 80px; /* Give it some initial height */
    border: none; /* Remove default textarea border */
    background-color: transparent; /* Inherit background */
    resize: vertical; /* Allow vertical resizing */
    outline: none; /* Remove focus outline */
    padding: 5px; /* Add internal padding */
    box-sizing: border-box; /* Include padding in width */
}

.remove-text-block-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    font-size: 1.1em;
    padding: 2px 5px;
    line-height: 1;
    border-radius: 50%;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.remove-text-block-btn:hover {
    background-color: var(--hover-bg-color);
    color: var(--error-color); /* Make it red on hover */
}

.add-text-block-btn {
    margin-top: 0; /* Remove extra top margin if any */
}


/* --- Multi-File Upload List Styling --- */
.uploaded-files-list {
    margin-top: 15px;
    display: flex; /* Use flexbox for layout */
    flex-direction: column; /* Stack files vertically */
    gap: 8px; /* Space between file items */
    width: 100%;
}

.file-item-upload {
    display: flex;
    align-items: center;
    justify-content: space-between; /* Space out elements */
    padding: 8px 12px;
    background-color: var(--background-color-alt);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 0.9em;
    transition: background-color 0.2s ease;
}

.file-item-upload:hover {
     background-color: var(--hover-bg-color);
}

.file-item-upload i {
    margin-right: 8px;
    color: var(--primary-color);
}

.file-item-upload span {
    flex-grow: 1; /* Allow text to take available space */
    margin-right: 8px; /* Space before remove button */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; /* Handle long filenames */
}

.remove-file-btn {
    background: none;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    font-size: 1.2em;
    padding: 0 5px;
    line-height: 1;
    border-radius: 3px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.remove-file-btn:hover {
    background-color: var(--hover-bg-color);
    color: var(--error-color);
}

/* --- URL List Styling (similar to files) --- */
.added-urls-list {
     margin-top: 15px;
    display: flex;
     flex-direction: column;
     gap: 8px;
     width: 100%;
}

.url-item-added {
    display: flex;
    align-items: center;
     justify-content: space-between;
     padding: 8px 12px;
     background-color: var(--background-color-alt);
     border: 1px solid var(--border-color);
     border-radius: 5px;
     font-size: 0.9em;
     transition: background-color 0.2s ease;
     word-break: break-all; /* Allow long URLs to wrap */
}

.url-item-added:hover {
     background-color: var(--hover-bg-color);
}

.url-item-added i {
     margin-right: 8px;
    color: var(--primary-color);
     flex-shrink: 0; /* Prevent icon from shrinking */
}

.url-item-added span {
     flex-grow: 1;
     margin-right: 8px;
      /* word-break: break-all; */ /* Already set on parent */
}

.remove-url-btn {
    background: none;
    border: none;
     color: var(--text-color-secondary);
    cursor: pointer;
     font-size: 1.2em;
     padding: 0 5px;
     line-height: 1;
     border-radius: 3px;
     transition: background-color 0.2s ease, color 0.2s ease;
     flex-shrink: 0; /* Prevent button from shrinking */
}

.remove-url-btn:hover {
     background-color: var(--hover-bg-color);
     color: var(--error-color);
}

/* === Upload Page - Tabbed Layout === */

.upload-methods {
    margin-bottom: 2rem; /* Space before config section */
}

.upload-method-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.upload-method-tabs .tab-btn {
    padding: 0.8rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color-medium);
    transition: var(--transition);
    margin-bottom: -2px; /* Overlap border */
}

.upload-method-tabs .tab-btn:hover {
    color: var(--text-color-dark);
    background-color: var(--background-medium);
}

.upload-method-tabs .tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
    background-color: transparent;
}

.upload-method-panels .panel {
    display: none; /* Hide inactive panels */
    padding: 1.5rem; 
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-background);
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease-in-out; /* Reuse fade-in animation */
}

.upload-method-panels .panel.active {
    display: block; /* Show active panel */
}

.upload-method-panels .panel h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.upload-method-panels .panel p {
    font-size: 0.9rem;
    color: var(--text-color-subtle);
    margin-bottom: 1.5rem;
}

/* Enhanced File Drop Zone */
#file-panel .file-drop-zone {
    border: 2px dashed var(--primary-color);
    background-color: #f7faff; /* Lighter blue tint */
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 1.5rem; /* Space before file list */
}

#file-panel .file-drop-zone:hover, 
#file-panel .file-drop-zone.dragover {
    border-color: var(--accent-color);
    background-color: #fffaf0; /* Lighter orange tint on hover/drag */
}

#file-panel .file-drop-zone .upload-icon-small {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    display: block; /* Make icon block level */
}

#file-panel .file-drop-zone span {
    color: var(--text-color-medium);
    font-weight: 500;
}


/* Adjustments for existing list styles within panels */
#text-panel #text-blocks-container,
#file-panel .uploaded-files-list,
#url-panel .added-urls-list {
    margin-top: 0; /* Remove extra margin if panel has padding */
    max-height: 200px; /* Increase max height slightly */
    overflow-y: auto;
}

/* === Upload Page - Staging Area === */

.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color-dark);
}

#staging-area {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--background-light);
    padding: 1.5rem;
    min-height: 150px; /* Give it some minimum height */
    display: flex; 
    flex-direction: column;
    gap: 1rem; /* Space between staged items */
}

#staging-area.staging-area-empty p {
    color: var(--text-color-subtle);
    text-align: center;
    margin: auto; /* Center placeholder text vertically */
}

.staged-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    gap: 1rem;
}

.staged-item-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 30px; /* Align icons */
    text-align: center;
}

.staged-item-icon.text-icon { color: var(--primary-color); }
.staged-item-icon.file-icon { color: var(--secondary-color); }
.staged-item-icon.url-icon { color: var(--accent-color); }

.staged-item-content {
    flex-grow: 1;
    overflow: hidden; /* Prevent long content from breaking layout */
}

.staged-item-content .item-title {
    font-weight: 600;
    margin-bottom: 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.staged-item-content .item-details {
    font-size: 0.85em;
    color: var(--text-color-subtle);
    margin-bottom: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.staged-item-content .item-snippet {
    font-size: 0.9em;
    color: var(--text-color-medium);
    display: -webkit-box;
    -webkit-line-clamp: 2; /* Limit text snippet to 2 lines */
    -webkit-box-orient: vertical;  
    line-clamp: 2; /* Standard property for compatibility */
    overflow: hidden;
    line-height: 1.4;
}

.remove-staged-item-btn {
    background: none;
    border: 1px solid transparent;
    color: var(--text-color-subtle);
    cursor: pointer;
    font-size: 1.1em;
    padding: 5px;
    line-height: 1;
    border-radius: 50%;
    transition: var(--transition);
    flex-shrink: 0;
}

.remove-staged-item-btn:hover {
    color: var(--danger-color);
    background-color: var(--hover-bg-color);
    border-color: var(--border-color);
}

/* Adjust confirm buttons */
.add-to-staging-btn {
    margin-top: 1rem;
}

/* Disable buttons */
#add-files-to-staging:disabled,
#generate-flashcards-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--background-medium);
    color: var(--text-color-subtle);
    border-color: var(--border-color);
    box-shadow: none;
    transform: none;
}
#add-files-to-staging:disabled:hover,
#generate-flashcards-submit:disabled:hover {
    opacity: 0.6;
    background: var(--background-medium);
    color: var(--text-color-subtle);
    border-color: var(--border-color);
}

/* === Start: About Page Styles === */
.about-page-content {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
    max-width: 1400px; /* Increased width */
    margin: 0 auto; /* Center content */
    overflow-y: visible; /* Override general .main-content scroll for this page */
}

.about-page-content .page-header {
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
}

.about-page-content .page-header p {
    margin-top: 0.5rem;
    font-size: 1.1rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.team-member-card {
    background-color: var(--card-background);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.team-member-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.team-member-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1.5rem;
    border: 4px solid var(--background-light);
    box-shadow: var(--shadow-sm); 
}

.team-member-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color-dark);
}

.team-member-role {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.team-member-description {
    font-size: 0.9rem;
    color: var(--text-color-medium);
    line-height: 1.6;
}

/* === End: About Page Styles === */

/* === Start: About Page - Advisor Section Styles === */
.advisor-section {
    margin-top: 3rem;
}

.advisor-section .sub-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color-dark);
    margin-bottom: 0.5rem;
}

.advisor-section .sub-header p {
    font-size: 1rem;
    color: var(--text-color-medium);
}

.advisor-card-container {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
}

.advisor-card {
    max-width: 400px;
    box-shadow: var(--shadow-sm);
}

.advisor-card:hover {
    transform: none;
    box-shadow: var(--shadow-md);
}
/* === End: About Page - Advisor Section Styles === */

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

/* Responsive adjustments for team grid */
/* Large screens: Force 4 columns */
@media (min-width: 1200px) {
    .team-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Medium screens: 2 columns */
@media (max-width: 992px) {
    .team-grid {
        grid-template-columns: repeat(2, 1fr); /* Keep 2 columns for medium screens */
        gap: 2rem;
    }
    .team-member-photo {
        width: 120px;
        height: 120px;
    }
}

/* Small screens: 1 column */
@media (max-width: 768px) {
    .team-grid {
        grid-template-columns: 1fr; /* Single column on smaller screens */
    }
} 

/* Feedback Button and Modal */
.feedback-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: var(--text-color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    z-index: 1000;
    border: none;
    transition: var(--transition);
}

.feedback-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.feedback-btn i {
    font-size: 1.2rem;
}

.feedback-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1001;
    justify-content: center;
    align-items: center;
}

.feedback-modal.active {
    display: flex;
}

.feedback-modal-content {
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    max-width: 450px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    position: relative;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feedback-modal-header {
    margin-bottom: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-logo {
    height: 50px;
    margin-bottom: 1rem;
}

.feedback-modal-header h3 {
    font-size: 1.5rem;
    color: var(--text-color-dark);
    margin-bottom: 0.5rem;
}

.feedback-modal-header p {
    color: var(--text-color-medium);
}

.feedback-modal-body {
    margin-bottom: 1.5rem;
}

.feedback-modal-body p {
    margin-bottom: 1rem;
    color: var(--text-color-medium);
    line-height: 1.6;
}

.feedback-modal-body a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.feedback-modal-body a:hover {
    text-decoration: underline;
}

.feedback-modal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.project-info-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.close-modal-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-color-medium);
    cursor: pointer;
    transition: var(--transition);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-modal-btn:hover {
    color: var(--text-color-dark);
    background-color: var(--background-medium);
}

/* Media queries for responsive design */
@media (max-width: 768px) {
    .feedback-btn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}