/* ===================================
   MOBILE-FIRST RESPONSIVE DESIGN
   Supporting: Smartphones, Tablets, Desktop
   =================================== */

/* ===== CRITICAL BASE MOBILE FIXES ===== */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px; /* Ensure base font size */
    -webkit-text-size-adjust: 100%; /* Prevent iOS font scaling */
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    overflow-x: visible; /* Allow content to show fully */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== VIEWPORT AND CONTENT FIXES ===== */
.container {
    max-width: 100%;
    padding: 0 1rem;
}

/* Ensure all images are responsive */
img, 
video {
    max-width: 100%;
    height: auto;
}

/* Improve touch targets for mobile */
.btn, 
.option-label, 
.nav-link,
input[type="submit"],
input[type="button"],
button,
a {
    min-height: 44px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

/* ===== NAVIGATION MOBILE STYLES ===== */

/* Mobile menu toggle button */
.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
    z-index: 1001;
}

.hamburger-line {
    width: 25px;
    height: 3px;
    background: #00ffff;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        order: 2;
    }
    /* Fix: prevent side clipping of cards by removing negative margins */
    .dashboard-section {
        margin: 0 !important;
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
        overflow: visible !important;
        width: 100% !important;
        max-width: 100vw !important;
        box-sizing: border-box !important;
    }

    /* Also allow wrappers to show full inner borders/shadows */
    .dashboard-container,
    .dashboard-content {
        overflow-x: visible !important;
        overflow-y: visible !important;
        width: 100% !important;
        max-width: 100vw !important;
        padding: 0.5rem !important;
        box-sizing: border-box !important;
    }
    
    .navbar {
        padding: 0.75rem 1rem;
        position: sticky;
        top: 0;
        z-index: 1000;
    }
    
    .nav-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 0.5rem;
        padding: 0.5rem 0.8rem;
    }
    
    .nav-brand {
        text-align: left;
        margin-bottom: 0;
        order: 1;
    }
    
    .nav-brand h2 {
        font-size: 1.05rem;
        letter-spacing: 1px;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        width: 100%;
        gap: 0;
        padding: 1rem;
        border-radius: 0 0 12px 12px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        display: none;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s ease;
        order: 3;
        z-index: 1000;
    }
    
    .nav-menu.active {
        display: flex;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-link {
        padding: 0.75rem 1rem;
        text-align: center;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.1);
        margin-bottom: 0.5rem;
        font-size: 0.95rem;
        white-space: nowrap;
        transition: all 0.3s ease;
    }
    
    .nav-link:hover {
        background: rgba(0, 255, 255, 0.2);
        transform: translateX(5px);
    }
    
    .nav-user {
        padding: 0.75rem 1rem;
        text-align: center;
        background: rgba(0, 255, 255, 0.1);
        border-radius: 8px;
        margin-bottom: 0.5rem;
        font-weight: bold;
    }
}

/* ===== HOMEPAGE MOBILE STYLES ===== */
@media (max-width: 768px) {
    .hero-section {
        padding: 1.5rem 1rem;
        min-height: auto;
    }
    
    .hero-content {
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
        line-height: 1.3;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 2rem 0;
    }
    
    .feature {
        padding: 1.5rem;
        text-align: center;
    }
    
    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .feature h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .feature ul {
        text-align: left;
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .btn-large {
        width: 100%;
        padding: 1rem;
        font-size: 1.1rem;
    }
    
    /* Steps section */
    .steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .step {
        text-align: center;
        padding: 1.5rem;
    }
    
    .step-number {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    /* Requirements section */
    .requirements {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .requirement {
        padding: 1.5rem;
    }
    
    /* Info section */
    .info-section {
        padding: 2rem 1rem;
    }
    
    .requirements-section {
        padding: 2rem 1rem;
    }
}

/* ===== FORMS MOBILE STYLES ===== */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
        min-height: 100vh;
        display: flex;
        align-items: center;
    }
    
    .auth-card {
        width: 100%;
        max-width: none;
        margin: 0;
        padding: 1.5rem;
        border-radius: 12px;
    }
    
    .auth-header h2 {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .auth-header p {
        font-size: 0.95rem;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    .auth-input {
        padding: 1rem;
        font-size: 1rem;
        border-radius: 8px;
        width: 100%;
    }
    
    .auth-button {
        width: 100%;
        padding: 1rem;
        font-size: 1.1rem;
        margin-top: 1rem;
    }
    
    .auth-footer {
        margin-top: 1.5rem;
        text-align: center;
    }
    
    .auth-link {
        display: block;
        margin-bottom: 0.75rem;
        padding: 0.75rem;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.1);
    }
}

/* ===== REGISTRATION FORM MOBILE STYLES ===== */
@media (max-width: 768px) {
    .wing-selection {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .wing-card {
        padding: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .wing-fields {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 1rem;
    }
    
    .field-group input,
    .field-group select {
        padding: 1rem;
        font-size: 1rem;
        width: 100%;
    }
    
    .form-container {
        padding: 1rem;
    }
    
    .form-card {
        padding: 1.5rem;
        margin: 0.5rem;
        border-radius: 12px;
    }
}

/* ===== STUDENT DASHBOARD MOBILE STYLES ===== */
@media (max-width: 768px) {
    .dashboard-container {
        padding: 1rem;
    }
    
    .dashboard-header {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
        border-radius: 12px;
    }
    
    .dashboard-header h1 {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .welcome-message {
        font-size: 0.95rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    
    .stat-card {
        padding: 1.25rem;
        text-align: center;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
    
    .available-exams {
        margin-bottom: 2rem;
    }
    
    .exams-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .exam-card {
        padding: 1.25rem;
    }
    
    .exam-title {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }
    
    .exam-meta {
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: 1rem;
    }
    
    .exam-actions {
        flex-direction: column;
        gap: 0.75rem;
        flex-wrap: wrap !important;
        overflow: visible !important;
    }
    
    .exam-actions .btn,
    .exam-actions .review-btn {
        display: block !important;
        width: 100% !important;
        padding: 0.875rem !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: unset !important;
    }

    /* Ensure the actions wrapper doesn't clip children */
    #activeExamActions {
        display: block !important;
        width: 100% !important;
        overflow: visible !important;
    }

    /* Make countdown visuals fit and not clip */
    #preStartCountdown,
    .circular-countdown {
        width: 100% !important;
        max-width: 320px !important;
        margin: 0 auto !important;
    }
    .countdown-svg {
        width: 120px !important;
        height: 120px !important;
        max-width: 100% !important;
    }
    .countdown-caption,
    .countdown-label,
    .countdown-value {
        word-break: break-word !important;
        white-space: normal !important;
    }
    
    /* Mobile Rankings & Performance - COMPACT */
    .ranking-section-card,
    .leaderboard-section-card,
    div.ranking-section-card,
    div.leaderboard-section-card {
        background: linear-gradient(135deg, 
            rgba(0, 191, 255, 0.2) 0%, 
            rgba(0, 255, 127, 0.1) 50%,
            var(--cyber-dark-alt) 100%) !important;
        border: 2px solid var(--cyber-primary) !important;
        border-radius: 12px !important;
        padding: 0.75rem !important;
        min-height: auto !important;
        max-height: none !important;
        overflow: visible !important;
        margin-bottom: 1rem !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        color: var(--cyber-text) !important;
        box-shadow: 
            0 6px 20px rgba(0, 191, 255, 0.15),
            0 0 25px rgba(0, 191, 255, 0.08) !important;
    }
    
    .ranking-section-card h3,
    .leaderboard-section-card h3 {
        font-size: 1.1rem !important;
        color: var(--cyber-primary) !important;
        text-shadow: 0 0 8px var(--cyber-primary) !important;
        margin-bottom: 1rem !important;
    }
    
    .card-header {
        margin-bottom: 1rem !important;
        padding-bottom: 0.8rem !important;
        border-bottom: 1px solid rgba(0, 191, 255, 0.3) !important;
    }
    
    .card-header h3 {
        font-size: 1.1rem !important;
        color: var(--cyber-primary) !important;
        text-shadow: 0 0 8px var(--cyber-primary) !important;
        margin: 0 !important;
    }
    
    /* Mobile: Make "📊 Your Exam Rankings" header bright and visible */
    .rankings-section .card-header {
        background: linear-gradient(135deg, #00bfff 0%, #00e5ff 100%) !important;
        border: 2px solid #00ffff !important;
        border-radius: 10px !important;
        padding: 0.9rem 1.1rem !important;
        margin-bottom: 1.2rem !important;
        box-shadow: 0 4px 12px rgba(0, 191, 255, 0.5) !important;
    }
    
    .rankings-section .card-header h3 {
        color: #000 !important;
        font-weight: 700 !important;
        text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5) !important;
    }
    
    .leaderboard-subtitle {
        color: var(--cyber-text-dim) !important;
        font-size: 0.8rem !important;
        margin-top: 0.3rem !important;
    }
    
    .ranking-section-card *,
    .leaderboard-section-card * {
        color: var(--cyber-text) !important;
    }
    
    .personal-rankings-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    

    .ranking-badge-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0.8rem;
    }
    
    .rank-badge {
        width: 50px !important;
        height: 50px !important;
    }
    
    .rank-number {
        font-size: 0.9rem !important;
    }
    
    .rank-medal {
        font-size: 1.2rem !important;
    }
    
    .exam-title {
        font-size: 1rem !important;
        text-align: center;
        color: var(--cyber-text-bright) !important;
        margin-bottom: 0.8rem !important;
    }
    
    .performance-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-top: 1rem;
    }
    
    .stat-item {
        flex: 1 1 45%; /* Allow wrapping into 2 columns */
        padding: 0.6rem !important;
        font-size: 0.85rem !important;
        background: rgba(0, 191, 255, 0.1) !important;
        border-left: 3px solid var(--cyber-primary) !important;
    }
    
    .stat-icon {
        font-size: 1rem !important;
        width: 20px;
    }
    
    .stat-label {
        font-size: 0.75rem !important;
        color: var(--cyber-text-dim) !important;
    }
    
    .stat-value {
        font-size: 0.9rem !important;
        color: var(--cyber-text-bright) !important;
    }
    
    /* Mobile Leaderboard - Compact */
    .leaderboard-container {
        padding: 1.2rem;
    }
    
    .leaderboard-grid {
        gap: 0.8rem;
    }
    
    .leaderboard-item {
        padding: 0.8rem !important;
        background: rgba(0, 191, 255, 0.08) !important;
        border-left: 3px solid var(--cyber-primary) !important;
        border-radius: 6px !important;
        flex-direction: row !important;
        align-items: center !important;
        min-height: auto !important;
    }
    
    .leaderboard-rank {
        font-size: 1rem !important;
        margin-right: 0.8rem !important;
        min-width: 50px !important;
        gap: 0.4rem !important;
    }
    
    .leaderboard-rank-number {
        font-size: 1.1rem !important;
    }
    
    .leaderboard-rank-medal {
        font-size: 1.2rem !important;
    }
    
    .leaderboard-info {
        grid-template-columns: 1fr auto !important;
        gap: 0.8rem !important;
        width: 100%;
    }
    
    .leaderboard-details {
        gap: 0.2rem !important;
    }
    
    .leaderboard-name {
        font-size: 0.9rem !important;
        color: var(--cyber-text-bright) !important;
        line-height: 1.2 !important;
    }
    
    .leaderboard-organization {
        font-size: 0.75rem !important;
        color: var(--cyber-text-dim) !important;
    }
    
    .leaderboard-stats {
        text-align: right;
        gap: 0.2rem !important;
    }
    
    .leaderboard-score {
        font-size: 0.85rem !important;
        color: var(--cyber-accent) !important;
    }
    
    .leaderboard-meta {
        font-size: 0.7rem !important;
        color: var(--cyber-text-dim) !important;
    }
    
    /* Mobile Instructions - Bigger */
    .instructions-container {
        padding: 1.5rem;
    }
    
    .instructions-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .instruction-item {
        padding: 1.5rem;
        min-height: 100px;
    }
    
    .instruction-icon {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }
    
    .instruction-title {
        font-size: 1.2rem;
    }
    
    .instruction-description {
        font-size: 1rem;
    }
}

/* ===== EXAM TAKING MOBILE STYLES ===== */
@media (max-width: 768px) {
    .exam-container {
        padding: 1rem;
        margin: 0;
    }
    
    .exam-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 1.5rem !important;
        padding: 1.5rem !important;
        text-align: left !important;
    }
    
    .exam-title {
        width: 100% !important;
        order: 1 !important;
    }
    
    .exam-title h1 {
        font-size: 1.5rem !important;
        margin: 0 0 0.5rem 0 !important;
        line-height: 1.3 !important;
        color: white !important;
    }
    
    .exam-title p {
        font-size: 0.9rem !important;
        margin: 0 0 1rem 0 !important;
        line-height: 1.5 !important;
        color: rgba(255, 255, 255, 0.95) !important;
    }
    
    .progress-info {
        display: inline-block !important;
        margin-top: 0 !important;
        font-size: 0.85rem !important;
        padding: 0.5rem 1rem !important;
        color: white !important;
    }
    
    .exam-timer {
        width: 100% !important;
        order: 2 !important;
        text-align: center !important;
        margin: 0 !important;
    }
    
    .exam-timer p {
        color: var(--cyber-accent) !important;
        font-weight: 700 !important;
        font-size: 0.85rem !important;
        text-transform: uppercase !important;
        letter-spacing: 1.5px !important;
        text-shadow: 0 0 10px rgba(0, 223, 255, 0.5) !important;
        margin: 0.5rem 0 0 0 !important;
    }
    
    .timer-display {
        font-size: 1.5rem !important;
        padding: 0.8rem 1.5rem !important;
        width: 100% !important;
        color: white !important;
    }
    
    .timer-display *,
    .timer-display span,
    .timer-display #timeRemaining {
        color: white !important;
        text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }
    
    .exam-progress {
        margin: 1.5rem 0 !important;
        padding: 1rem !important;
    }
    
    .progress-bar {
        margin-bottom: 0.8rem !important;
    }
    
    .progress-text {
        font-size: 0.9rem !important;
        text-align: center !important;
        margin-top: 0.5rem !important;
        color: var(--cyber-text-bright) !important;
    }
    
    .question-card {
        margin: 1rem 0;
        border-radius: 12px;
    }
    
    .question-header {
        padding: 1rem;
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
    
    .question-header h3 {
        font-size: 1.1rem;
    }
    
    .question-text {
        padding: 1.25rem;
    }
    
    .question-text p {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .options-container {
        padding: 1rem;
        gap: 0.875rem;
    }
    
    .option-label {
        padding: 1rem;
        border-radius: 10px;
    }
    
    .option-content {
        font-size: 0.95rem;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    .option-letter {
        width: 36px;
        height: 36px;
        font-size: 0.95rem;
    }
    
    .question-actions {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem;
    }
    
    .question-actions .btn {
        width: 100%;
        padding: 0.875rem;
        font-size: 1rem;
    }
    
    /* Image and video responsive */
    .image-preview img,
    .youtube-iframe {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
    }
    
    .youtube-iframe {
        height: 200px;
    }
}

/* ===== TABLET STYLES (768px - 1024px) ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .requirements {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .exams-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .wing-selection {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .auth-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* ===== LANDSCAPE PHONE STYLES ===== */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        padding: 1rem;
    }
    
    .hero-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .feature {
        padding: 1rem;
    }
    
    .exam-header {
        flex-direction: row !important;
        align-items: center !important;
        gap: 1.5rem !important;
        padding: 1rem 1.5rem !important;
    }
    
    .exam-title {
        order: 1 !important;
        flex: 1 !important;
    }
    
    .exam-title h1 {
        font-size: 1.3rem !important;
        margin: 0 0 0.3rem 0 !important;
    }
    
    .exam-title p {
        font-size: 0.85rem !important;
        margin: 0 0 0.5rem 0 !important;
    }
    
    .progress-info {
        font-size: 0.8rem !important;
        padding: 0.4rem 0.8rem !important;
    }
    
    .exam-timer {
        order: 2 !important;
        width: auto !important;
        min-width: 160px !important;
    }
    
    .exam-timer p {
        color: var(--cyber-accent) !important;
        font-weight: 700 !important;
        font-size: 0.75rem !important;
        text-shadow: 0 0 10px rgba(0, 223, 255, 0.5) !important;
    }
    
    .timer-display {
        font-size: 1.25rem !important;
        padding: 0.6rem 1.2rem !important;
        color: white !important;
    }
    
    .timer-display *,
    .timer-display span,
    .timer-display #timeRemaining {
        color: white !important;
        text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }
    
    .exam-progress {
        padding: 0.8rem 1.5rem !important;
    }
}

/* ===== ULTRA-SMALL SCREENS (320px) ===== */
@media (max-width: 400px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .auth-card {
        padding: 1rem;
    }
    
    .btn-large {
        font-size: 1rem;
        padding: 0.875rem;
    }
    
    .feature-icon {
        font-size: 2rem;
    }
    
    .option-content {
        font-size: 0.9rem;
    }
    
    .question-text p {
        font-size: 0.95rem;
    }
    
    .nav-brand h2 {
        font-size: 0.98rem;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    /* Ultra-small exam header adjustments */
    .exam-header {
        padding: 1.2rem !important;
    }
    
    .exam-title h1 {
        font-size: 1.3rem !important;
    }
    
    .exam-title p {
        font-size: 0.85rem !important;
    }
    
    .progress-info {
        font-size: 0.8rem !important;
        padding: 0.4rem 0.8rem !important;
    }
    
    .timer-display {
        font-size: 1.3rem !important;
        padding: 0.7rem 1.2rem !important;
        color: white !important;
    }
    
    .timer-display *,
    .timer-display span,
    .timer-display #timeRemaining {
        color: white !important;
        text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
    }
    
    .exam-progress {
        padding: 0.8rem !important;
    }
    
    .progress-text {
        font-size: 0.85rem !important;
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (max-width: 768px) {
    /* Ensure touch targets are large enough */
    button, .btn, .option-label, .nav-link {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Improve focus visibility */
    *:focus {
        outline: 2px solid #4a90e2;
        outline-offset: 2px;
    }
    
    /* Better spacing for readability */
    p, li {
        line-height: 1.6;
    }
    
    /* Ensure adequate color contrast (the page is dark, so #666 fails here) */
    .text-muted {
        color: var(--cyber-text-dim) !important;
    }
}

/* ===== FOOTER MOBILE STYLES ===== */
@media (max-width: 768px) {
    .footer {
        padding: 0.8rem 0.5rem;
    }
    
/* ===== CRITICAL MOBILE NAVIGATION FIX ===== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex !important;
        flex-direction: column;
        z-index: 1001;
        position: relative;
    }
    
    .nav-menu {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--cyber-dark-alt, #0a192f);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        border-top: 2px solid var(--cyber-primary, #00bfff);
        z-index: 1000;
    }
    
    .nav-menu.active {
        display: flex !important;
        animation: slideDown 0.3s ease-out;
    }
    
    .navbar {
        position: relative;
    }
    
    .nav-container {
        position: relative;
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: 0.75rem 1rem;
        margin: 0.25rem 0;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 4px;
        text-align: center;
        display: block;
        width: 100%;
    }
    
    .nav-link:hover {
        background: rgba(0, 255, 255, 0.2);
    }
}

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

/* ===== FORM MOBILE ENHANCEMENTS ===== */
@media (max-width: 768px) {
    .auth-form, .form-container {
        padding: 1.5rem 1rem !important;
        margin: 1rem !important;
        max-width: calc(100% - 2rem) !important;
        width: calc(100% - 2rem) !important;
    }
    
    .form-group {
        margin-bottom: 1.5rem !important;
    }
    
    input[type="text"],
    input[type="password"],
    input[type="email"],
    textarea,
    select {
        font-size: 16px !important; /* Prevent zoom on iOS */
        padding: 0.75rem !important;
        width: 100% !important;
        box-sizing: border-box !important;
        border-radius: 4px !important;
    }
    
    .btn-large {
        width: 100% !important;
        margin-bottom: 0.5rem !important;
        padding: 1rem !important;
        font-size: 1.1rem !important;
    }
    
    .hero-actions {
        flex-direction: column !important;
        align-items: center !important;
        gap: 1rem !important;
    }
    
    .hero-actions .btn {
        width: 100% !important;
        max-width: 300px !important;
    }
}

/* ===== CRITICAL MOBILE OVERRIDES ===== */
@media (max-width: 768px) {
    /* Force responsive behavior */
    body {
        overflow-x: visible !important;
        font-size: 14px !important;
        line-height: 1.5 !important;
        width: 100vw !important;
        max-width: 100vw !important;
    }
    
    /* Ensure main content doesn't overflow */
    .main-content,
    .hero-section,
    .container {
        width: 100% !important;
        max-width: 100% !important;
        padding: 1rem !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    /* Make text readable on mobile */
    h1 { font-size: 1.8rem !important; line-height: 1.2 !important; }
    h2 { font-size: 1.5rem !important; line-height: 1.3 !important; }
    h3 { font-size: 1.3rem !important; line-height: 1.4 !important; }
    p, li { font-size: 1rem !important; line-height: 1.6 !important; }
    
    /* Fix navigation brand */
    .nav-brand h2 {
        font-size: 1.2rem !important;
    }
    
    /* Make feature boxes stack */
    .hero-features {
        flex-direction: column !important;
        gap: 1.5rem !important;
    }
    
    .feature {
        width: 100% !important;
        margin-bottom: 1rem !important;
    }
    
    /* Fix steps section */
    .steps {
        flex-direction: column !important;
        gap: 1rem !important;
    }
    
    .step {
        width: 100% !important;
        text-align: center !important;
    }
}

/* ===== ACCESSIBILITY AND PERFORMANCE ===== */
@media (max-width: 768px) {
    /* Improve touch targets */
    button, .btn, .option-label, .nav-link, a {
        min-height: 44px !important;
        min-width: 44px !important;
        touch-action: manipulation !important;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
    }
    
    /* Better focus visibility */
    *:focus {
        outline: 2px solid #4a90e2 !important;
        outline-offset: 2px !important;
    }
    
    /* Optimize animations for performance */
    * {
        -webkit-backface-visibility: hidden !important;
        backface-visibility: hidden !important;
    }
}

/* ===== DARK MODE MOBILE SUPPORT ===== */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    .auth-card,
    .question-card,
    .exam-card,
    .stat-card {
        background: #1a1a2e;
        border-color: #2a2a4e;
    }
    
    .hero-section {
        background: #0f0f1a;
    }
    
    .option-label {
        background: #1a1a2e;
        border-color: #2a2a4e;
        color: #e0e0e0;
    }
    
    .option-label:hover {
        background: #2a2a4e;
    }
}

/* ===== STUDENT DASHBOARD MOBILE RESPONSIVE ===== */

/* Mobile First (320px+) */
@media screen and (max-width: 768px) {
    /* Dashboard Container */
    .dashboard-container {
        padding: 1rem;
        margin: 0;
    }

    .dashboard-header {
        padding: 1.5rem 1rem;
        margin-bottom: 2rem;
    }

    .dashboard-header h1 {
        font-size: 1.8rem;
        line-height: 1.2;
    }

    .dashboard-header p {
        font-size: 1rem;
    }

    /* Dashboard Content */
    .dashboard-content {
        gap: 1.5rem;
    }

    .dashboard-section {
        padding: 1.5rem 1rem;
        margin: 0 !important; /* override negative margins to avoid clipping */
        border-radius: 8px;
    }

    .dashboard-section h2 {
        font-size: 1.4rem;
        margin-bottom: 1rem;
    }

    /* Compact Rankings for Mobile */
    .dashboard-section.rankings-section {
        padding: 1rem;
    }

    .dashboard-section.rankings-section h2 {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }


    .rank-badge {
        width: 40px;
        height: 40px;
        font-size: 0.8rem;
        margin-right: 0.8rem;
    }

    .leaderboard-item {
        padding: 0.6rem;
    }

    .leaderboard-rank {
        font-size: 1rem;
        margin-right: 0.8rem;
        min-width: 35px;
    }

    .leaderboard-name {
        font-size: 0.85rem;
    }

    .leaderboard-score {
        font-size: 0.75rem;
    }

    /* Hide additional performers on small screens */
    .additional-performers {
        max-height: 150px;
    }

    /* Exam Cards */
    .exam-card, .active-exam {
           padding: 1.5rem 1rem;
           margin-bottom: 1rem;
           border-radius: 12px;
           background: linear-gradient(160deg, rgba(24, 61, 97, 0.98), rgba(14, 34, 58, 0.98)) !important;
           box-shadow: 0 8px 24px rgba(0,20,45,0.18) !important;
    }

    .exam-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .exam-header h3, .exam-header h4 {
        font-size: 1.2rem;
        line-height: 1.3;
    }

    .exam-status {
        align-self: flex-end;
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }

    /* Exam Info Grid */
    .exam-info {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .info-item {
            padding: 1.2rem 1.25rem;
            border-radius: 12px;
            background: linear-gradient(160deg, rgba(24, 61, 97, 0.98), rgba(14, 34, 58, 0.98)) !important;
            box-shadow: 0 4px 12px rgba(0,20,45,0.12) !important;
        }

        .info-item.info-tip {
            background: linear-gradient(160deg, rgba(46, 108, 162, 0.98), rgba(28, 72, 118, 0.98)) !important;
            border: 1px solid rgba(126, 226, 255, 0.32) !important;
            box-shadow: 0 8px 18px rgba(5, 28, 58, 0.18) !important;
        }

    .info-label {
        font-size: 0.8rem;
    }

    .info-value {
        font-size: 1rem;
    }

    /* Buttons */
    .exam-actions {
        flex-direction: column;
        gap: 0.8rem;
        margin-top: 1.5rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        text-align: center;
        width: 100%;
    }

    /* History Cards */
    .history-card {
        padding: 1.5rem 1rem;
    }

    .history-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
        margin-bottom: 1rem;
    }

    .history-details {
        gap: 1.5rem;
    }

    /* Score Display */
    .score-display {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }

    .score-circle {
        width: 80px;
        height: 80px;
        font-size: 1.2rem;
    }

    /* Timeline */
    .timeline-item {
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .timeline-icon {
        font-size: 1.2rem;
        width: 30px;
    }

    .timeline-label {
        font-size: 0.8rem;
    }

    .timeline-value {
        font-size: 0.9rem;
    }

    /* No Content Cards */
    .no-exam-card, .no-history-card {
        padding: 2rem 1rem;
    }

    .no-exam-icon, .no-history-icon {
        font-size: 3rem;
    }

    .no-exam-card h3, .no-history-card h3 {
        font-size: 1.2rem;
    }

    /* Exam History specific refinements for small screens */
    .exam-history {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    .history-card {
        padding: 1rem !important;
    }

    .history-header h4 {
        font-size: 1rem !important;
        line-height: 1.3 !important;
        margin: 0 !important;
        word-break: break-word !important;
    }

    .history-header .exam-status {
        align-self: flex-start !important;
    }

    .history-details {
        gap: 1rem !important;
    }

    .score-display {
        width: 100% !important;
    }

    .exam-actions .review-btn {
        width: 100% !important;
        justify-content: center !important;
    }

    .exam-timeline {
        grid-template-columns: 1fr !important;
    }

    .timeline-value {
        white-space: normal !important;
        word-break: break-word !important;
    }

    /* Active/Next Exam cards */
    .dashboard-header h1 {
        font-size: 1.25rem !important;
    }
    .dashboard-header p {
        font-size: 0.9rem !important;
    }

    .exam-card,
    .next-exam-card {
        padding: 1rem !important;
    overflow: visible !important; /* prevent inner content clipping */
    }

    .exam-header {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.5rem !important;
    }

    .exam-header h3,
    .next-exam-header h3 {
        font-size: 1.1rem !important;
        line-height: 1.3 !important;
        margin: 0 !important;
        word-break: break-word !important;
    }

    .exam-header .exam-status {
        font-size: 0.85rem !important;
        padding: 0.35rem 0.75rem !important;
        align-self: flex-start !important;
    }

    .exam-info {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        overflow: visible !important;
    }
    .info-item {
        overflow: visible !important;
    }
    .info-label,
    .info-value,
    .exam-end-time {
        word-break: break-word !important;
        overflow-wrap: anywhere !important;
        white-space: normal !important;
    }

    .participation-window-info small {
        display: block !important;
    }

    .countdown-timer {
        margin-top: 0.5rem !important;
        font-size: 1rem !important;
        text-align: center !important;
        word-break: break-word !important;
    }

    #preStartCountdown .countdown-caption {
        font-size: 0.9rem !important;
    }

    /* Rankings & Performance layout is now handled by dashboard-ranking-responsive.css */
    /*
    .rankings-performance-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    .ranking-stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem !important;
    }
    */


@media (max-width: 400px) {
    /*
    .ranking-stats-grid {
        grid-template-columns: 1fr !important;
    }
    */
    .score-circle {
        width: 72px !important;
        height: 72px !important;
        font-size: 1.05rem !important;
    }
    .exam-header h3,
    .next-exam-header h3 {
        font-size: 1.02rem !important;
    }
    .exam-header .exam-status {
        font-size: 0.8rem !important;
        padding: 0.3rem 0.65rem !important;
    }
    .rank-badge {
        width: 44px !important;
        height: 44px !important;
    }
}

@media (max-width: 360px) {
    .score-circle {
        width: 64px !important;
        height: 64px !important;
        font-size: 0.95rem !important;
    }
    .exam-header h3,
    .next-exam-header h3 {
        font-size: 0.98rem !important;
    }
    .leaderboard-rank {
        min-width: 44px !important;
    }
}

/* Allow content to display fully on dashboard wrappers */
@media (max-width: 768px) {
    .dashboard-container,
    .dashboard-content,
    .dashboard-section {
        overflow-x: visible !important;
        overflow-y: visible !important;
        max-width: 100vw !important;
        box-sizing: border-box !important;
    }
}

/* Additional mobile refinements for better UX */
@media (max-width: 768px) {
    /* Keep history title and status aligned with graceful wrapping */
    .history-header {
        flex-direction: row !important;
        align-items: flex-start !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }
    .history-header h4 {
        flex: 1 1 70% !important;
    }
    .history-header .exam-status {
        margin-left: auto !important;
    }

    /* Avoid nested scrolling in ranking/leaderboard cards on mobile */
    .ranking-section-card,
    .leaderboard-section-card,
    div.ranking-section-card,
    div.leaderboard-section-card {
        max-height: none !important;
        overflow: visible !important;
    }
    /* Let the personal rankings list grow and let the page scroll */
    .personal-rankings-grid {
        max-height: none !important;
        overflow: visible !important;
    }

    /* Improve text wrapping in tight spaces */
    .exam-header h3,
    .next-exam-header h3,
    .exam-title,
    .leaderboard-name {
        overflow-wrap: anywhere !important;
        word-break: break-word !important;
    }
}

/* Mobile Rankings: prevent clipping/truncation and allow wrapping */
@media (max-width: 768px) {
    /* Ensure the leaderboard uses flexible wrapping */
    .leaderboard-item,
    .ranking-item,
    .leaderboard-grid > * {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        gap: 0.5rem !important;
        flex-wrap: wrap !important;
        width: 100% !important;
    }

    /* Let name and meta wrap and take remaining space */
    .leaderboard-info,
    .ranking-info,
    .leaderboard-details {
        flex: 1 1 auto !important;
        min-width: 0 !important; /* allow shrinking */
        overflow: visible !important;
        white-space: normal !important;
        word-break: break-word !important;
    }

    /* Shrink badges and rank numbers slightly to avoid overflow */
    .rank-badge {
        width: 40px !important;
        height: 40px !important;
        flex: 0 0 40px !important;
    }

    .leaderboard-rank,
    .leaderboard-rank-number {
        min-width: 36px !important;
        font-size: 0.95rem !important;
    }

    /* Make score and meta align to the right or wrap under name if needed */
    .leaderboard-stats,
    .ranking-stats {
        display: flex !important;
        flex-direction: row !important;
        gap: 0.5rem !important;
        align-items: center !important;
        flex: 0 0 auto !important;
    }

    /* Ensure very long names wrap instead of forcing overflow */
    .leaderboard-name,
    .ranking-name {
        overflow-wrap: anywhere !important;
        word-break: break-word !important;
        white-space: normal !important;
    }

    /* Prevent inner cards from clipping due to fixed min-heights */
    .ranking-section-card,
    .leaderboard-section-card {
        min-height: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }

    /* Reduce horizontal padding on small screens to make room */
    .leaderboard-item,
    .ranking-item {
        padding-left: 0.6rem !important;
        padding-right: 0.6rem !important;
    }
}

/* Review Button */
.review-btn {
    padding: 0.8rem 1.2rem;
    font-size: 0.9rem;
    width: 100%;
    justify-content: center;
}

/* Countdown */
.circular-countdown {
    margin: 1rem 0;
}

.countdown-svg {
    width: 100px;
    height: 100px;
}

.time-text {
    font-size: 10px;
}

.countdown-caption {
    font-size: 0.8rem;
}

/* Small Tablets (481px - 768px) */
@media screen and (min-width: 481px) and (max-width: 768px) {
    .dashboard-container {
        padding: 1.5rem;
    }

    .exam-info {
        grid-template-columns: repeat(2, 1fr);
    }

    .exam-actions {
        flex-direction: row;
        justify-content: space-between;
    }

    .btn {
        width: auto;
        flex: 1;
    }

    .score-display {
        flex-direction: row;
        text-align: left;
    }
}

/* Large Tablets (769px - 1024px) */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    .dashboard-container {
        padding: 2rem 1.5rem;
    }

    .exam-info {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .dashboard-content {
        gap: 2rem;
    }

    .history-details {
        display: grid;
        grid-template-columns: 1fr 2fr;
        gap: 2rem;
        align-items: start;
    }
}

/* Large Desktop (1025px+) */
@media screen and (min-width: 1025px) {
    .dashboard-container {
        max-width: 1200px;
        padding: 2rem;
    }

    .exam-info {
        grid-template-columns: repeat(4, 1fr);
    }

    .history-details {
        display: grid;
        grid-template-columns: 300px 1fr;
        gap: 2rem;
        align-items: start;
    }

    .exam-actions {
        justify-content: flex-start;
    }

    .btn {
        width: auto;
    }
}

/* Extra Large Desktop (1441px+) */
@media screen and (min-width: 1441px) {
    .dashboard-container {
        max-width: 1400px;
        padding: 3rem;
    }

    .dashboard-section {
        padding: 2.5rem;
    }

    .exam-card, .active-exam {
        padding: 2.5rem;
    }
}

/* Print Styles for Dashboard */
@media print {
    .dashboard-container {
        background: white !important;
        color: black !important;
        box-shadow: none !important;
    }

    .exam-card, .active-exam, .history-card {
        border: 2px solid #000 !important;
        background: white !important;
        color: black !important;
        box-shadow: none !important;
        page-break-inside: avoid;
    }

    .btn, .review-btn {
        display: none !important;
    }

    .circular-countdown {
        display: none !important;
    }
}

/* ===== FINAL MOBILE RANKING CARD FIX ===== */
@media (max-width: 768px) {
    /* Ultimate fix for ranking cards cutting off */
    html {
        overflow-x: visible !important;
        width: 100% !important;
    }
    
    body {
        overflow-x: visible !important;
        width: 100% !important;
        max-width: 100vw !important;
    }
    
    .dashboard-section.rankings-section {
        width: 100% !important;
        max-width: 100vw !important;
        padding: 0.5rem !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    .rankings-performance-grid {
        display: block !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    .rankings-column,
    .leaderboard-column {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 0 1rem 0 !important;
        box-sizing: border-box !important;
    }
    
    .ranking-section-card,
    .leaderboard-section-card {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0.75rem !important;
        box-sizing: border-box !important;
        overflow: visible !important;
    }
    
    .ranking-card {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 0 0.75rem 0 !important;
        padding: 0.75rem !important;
        box-sizing: border-box !important;
    }
    
    .ranking-content {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .ranking-stats-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
        box-sizing: border-box !important;
    }
    
    .stat-item {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0.5rem !important;
        box-sizing: border-box !important;
        text-align: left !important;
    }
    
    .stat-info {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        width: 100% !important;
        text-align: left !important;
    }
    
    .stat-icon {
        margin-right: 0.5rem !important;
        flex-shrink: 0 !important;
    }
    
    .stat-label,
    .stat-value {
        text-align: left !important;
        width: 100% !important;
    }
    
    .personal-rankings-grid,
    .leaderboard-grid {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important;
        box-sizing: border-box !important;
    }
    
    .leaderboard-item {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0.75rem !important;
        margin-bottom: 0.5rem !important;
        box-sizing: border-box !important;
    }
}

/* Mobile-specific styles */
@media (max-width: 768px) {
    .exam-header {
        background: linear-gradient(135deg, #14213d 0%, #0a192f 100%) !important;
        color: #fff !important;
        box-shadow: 0 4px 24px rgba(10,25,47,0.25) !important;
        border-radius: 12px !important;
    }
}

/* Apply the same dark gradient and white text to .exam-header for desktop */
.exam-header {
    background: linear-gradient(135deg, #14213d 0%, #0a192f 100%) !important;
    color: #fff !important;
    box-shadow: 0 4px 24px rgba(10,25,47,0.25) !important;
    border-radius: 12px !important;
}