:root {
    /* Color Palette - Premium Glassmorphism */
    --primary-color: #4f46e5;
    /* Indigo 600 */
    --primary-dark: #4338ca;
    /* Indigo 700 */
    --primary-light: #e0e7ff;
    --primary-hover: #4338ca;
    /* Added for hover states */

    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    --bg-body: #f3f4f6;
    --bg-card: #ffffff;

    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    --text-main: #1f2937;
    /* Gray 800 */
    --text-muted: #6b7280;
    /* Gray 500 */
    --text-light: #9ca3af;

    --border-color: #e5e7eb;
    --border-focus: #4f46e5;

    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Outfit', sans-serif;

    --sidebar-width: 260px;
    --header-height: 70px;
}

/* Reset & Base */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    margin-top: 0;
    margin-bottom: 0.5em;
    font-weight: 600;
    color: var(--text-main);
}

h1 {
    font-size: 1.875rem;
}

/* 30px */
h2 {
    font-size: 1.5rem;
}

/* 24px */
h3 {
    font-size: 1.25rem;
}

/* 20px */
h4 {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}


header .header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    header .header-content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.college-info h1 {
    font-size: 1.25rem;
    margin: 0;
    font-weight: 700;
    color: var(--primary-color);
}

.college-info p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.system-name h2 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}


nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

nav a,
nav button {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    background: transparent;
    border: none;
    cursor: pointer;
}

nav a:hover,
nav button:hover {
    background-color: var(--bg-body);
    color: var(--text-main);
}

/* Glass & Cards */
.glass-card,
.card,
.modern-login-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}



/* Inputs & Forms */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    color: var(--text-main);
    background: #ffffff;
    border: 1.5px solid #e2e8f0;
    border-radius: var(--radius-md);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
    transform: translateY(-1px);
}

.locked-field {
    background-color: #f8fafc !important;
    cursor: not-allowed !important;
    border-color: #e2e8f0 !important;
    color: #64748b !important;
    opacity: 0.8;
}

input::placeholder {
    color: #94a3b8;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(99, 102, 241, 0.25);
    transition: all var(--transition-fast);
    text-transform: capitalize;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(99, 102, 241, 0.35);
}

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

.btn-secondary {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.btn-action {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s, transform 0.1s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-action:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

/* Professional Send to Panel Button */
.btn-send-panel {
    background: var(--gradient-primary);
    color: white !important;
    border: none;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.btn-send-panel:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(79, 70, 229, 0.3);
}

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

.btn-send-panel i {
    font-size: 0.8rem;
}

/* Tab Navigation */
.tabs {
    background: rgba(229, 231, 235, 0.5);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    gap: 0.5rem;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease-out forwards;
}

/* Auth Pages (Login/Register) */

.auth-container {
    min-height: calc(100vh - 80px);
    /* Adjust for header */
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

/* Modern Login Styling */
/* Modern Login Styling */
.login-wrapper-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    width: 100%;
    max-width: 900px;
    justify-content: center;
}

.modern-login-card {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
    /* Soft shadow */
    width: 100%;
    flex: 1;
    min-width: 320px;
    max-width: 400px;
    overflow: hidden;
    margin: 0;
    border: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
}


.card-header-logo {
    padding: 2.5rem 2rem 1.5rem;
    text-align: center;
    background: linear-gradient(to bottom, #ffffff, #fdfdfd);
}

.logo-icon-large {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.card-header-logo h2 {
    font-size: 1.5rem;
    color: #1e293b;
    /* Slate 800 */
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.card-header-logo .subtitle {
    color: #64748b;
    /* Slate 500 */
    font-size: 0.95rem;
    margin: 0;
}

/* Tabs */
.login-tabs {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 0 2rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
}

.login-tab {
    background: transparent;
    border: none;
    padding: 0.75rem 0.5rem;
    font-size: 0.95rem;
    color: #64748b;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
}

.login-tab.active {
    color: #4f46e5;
    /* Primary Indigo */
    font-weight: 600;
}

.login-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #4f46e5;
    border-radius: 2px 2px 0 0;
}

.card-body {
    padding: 0 2rem 2.5rem;
}

/* Form Styles */
.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #334155;
    /* Slate 700 */
    font-weight: 500;
    font-size: 0.9rem;
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.2s;
    background: #f8fafc;
}

.input-group input:focus {
    background: #fff;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
}

/* --- Improved Password Toggle Visibility --- */
.password-field-container {
    position: relative;
    width: 100%;
}

.password-field-container input {
    padding-right: 3.5rem !important;
    /* Extra padding for larger toggle */
}

.password-toggle {
    position: absolute;
    right: 0.25rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent !important;
    border: none !important;
    padding: 12px !important;
    /* Even larger hit area for mobile */
    min-width: 44px;
    min-height: 44px;
    cursor: pointer;
    color: #4f46e5;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    /* Ensure it's above everything including labels */
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 50%;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    pointer-events: auto !important;
}

.password-toggle:hover {
    background-color: rgba(79, 70, 229, 0.1) !important;
    color: #4338ca;
}

.password-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.password-toggle:active {
    scale: 0.95;
}

.password-toggle svg {
    width: 22px;
    height: 22px;
    pointer-events: none;
    /* SVG should not interfere with clicks */
}

/* Multi-SVG Visibility Control */
.password-toggle .eye-off-icon {
    display: none;
}

.password-field-container.is-visible .password-toggle .eye-icon {
    display: none;
}

.password-field-container.is-visible .password-toggle .eye-off-icon {
    display: block;
}

/* Floating label adjustments */
.form-floating .password-toggle {
    height: 3.5rem;
    /* Ensure centering in Bootstrap floating labels */
    display: flex;
    align-items: center;
    justify-content: center;
    top: 0 !important;
    transform: none !important;
}

.form-actions {
    margin-top: 2rem;
}

.btn-login-modern {
    width: 100%;
    padding: 0.875rem;
    background: #4f46e5;
    color: white;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.btn-login-modern:hover {
    background: #4338ca;
    transform: translateY(-1px);
}

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

.register-link {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: #64748b;
}

.register-link a {
    color: #4f46e5;
    font-weight: 600;
}

.register-link a:hover {
    text-decoration: underline;
}

/* Profile Section Grid */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .profile-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}



/* Dynamic Grids (SGPA etc) */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 480px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: repeat(4, 1fr) !important;
    }
}

/* Tables (Admin) */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--text-muted);
    background-color: var(--bg-body);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
}

tr:last-child td {
    border-bottom: none;
}

/* clickable rows */
.student-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s;
}

.student-item:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-body);
}

.student-item.selected {
    border-color: var(--primary-color);
    background-color: #eff6ff;
}

/* Admin Layout */
.layout {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
    .layout {
        grid-template-columns: 350px 1fr;
        /* Fixed sidebar list, flexible detail */
        align-items: start;
        /* Don't stretch height */
    }
}

.details-panel {
    display: none;
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 5rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Dynamic List Items (Forms) */
.list-item-card {
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
}

/* Radio Button Styling */
input[type="radio"] {
    accent-color: var(--primary-color);
    width: 1.1em;
    height: 1.1em;
    margin-right: 0.3em;
}

/* File Inputs */
input[type="file"] {
    padding: 0.5rem;
    border: 1px dashed var(--border-color);
    background: var(--bg-body);
}

/* =========================================
   Admin Dashboard Premium Styles
   ========================================= */

.cgpa-input-group {
    max-width: 100%;
}

@media (min-width: 768px) {
    .cgpa-input-group {
        max-width: 300px;
    }
}

body.admin-body {
    background: #f0f2f5;
    background-image:
        radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%),
        radial-gradient(at 50% 0%, hsla(225, 39%, 30%, 1) 0, transparent 50%),
        radial-gradient(at 100% 0%, hsla(339, 49%, 30%, 1) 0, transparent 50%);
    background-size: 100% 100vh;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--text-main);
}

.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.sidebar-header h2 {
    font-size: 1.25rem;
    margin: 0;
    font-weight: 700;
    color: var(--text-main);
}

.sidebar-branch {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-top: 0.15rem;
    background: #e0e7ff;
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid rgba(79, 70, 229, 0.1);
    white-space: nowrap;
    width: fit-content;
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 1rem;
    color: var(--text-muted);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transform: translateX(5px);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.15), transparent);
    color: var(--primary-color);
    border-left: 3.5px solid var(--primary-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: 700;
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.logout-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.875rem;
    background: #fee2e2;
    color: #ef4444;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.05);
}

.logout-btn:hover {
    background: #ef4444;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.logout-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    background: #f1f5f9;
    color: #94a3b8;
    border-color: #e2e8f0;
}

/* Skeleton Loading Animation */
@keyframes skeleton-loading {
    0% {
        background-color: #f1f5f9;
    }

    100% {
        background-color: #e2e8f0;
    }
}

.skeleton-item {
    height: 60px;
    margin-bottom: 0.75rem;
    border-radius: var(--radius-md);
    animation: skeleton-loading 1s linear infinite alternate;
}

.student-list-container {
    min-height: 200px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 1.5rem 2rem;
}

/* Top Bar */
/* Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 3rem 2rem;
    /* Adjusted padding for height */
    min-height: 120px;
    /* Ensure enough height */
    background-image: url('../navv.jpg');
    background-size: contain;
    background-color: white;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    color: white;
}

/* Ensure text readability on top of image */
.top-bar::before {
    content: none;
    /* Remove overlay */
    background: transparent;
}



.top-bar>* {
    position: relative;
    z-index: 1;
}

/* Hamburger Menu (Hidden by default) */
.hamburger-menu {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 101;
    /* Above sidebar */
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hamburger-menu {
        display: block;
        margin-right: 1rem;
    }

    .top-bar {
        padding: 1.5rem 1rem;
        flex-direction: row;
        /* Keep row for hamburger */
        align-items: center;
    }

    .sidebar {
        transform: translateX(-100%);
        width: 260px;
        /* Fixed width on mobile */
        box-shadow: var(--shadow-lg);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
        width: 100%;
    }

    .top-bar {
        padding: 1.5rem 1rem;
        flex-direction: row;
        align-items: center;
        gap: 1rem;
        min-height: 100px;
        margin-bottom: 0;
        /* Remove margin so nav sits flush */
        border-bottom-left-radius: 0;
        border-bottom-right-radius: 0;
    }

    /* Mobile Sidebar -> Top Nav Bar */
    /* Mobile Sidebar -> Bottom Navigation Bar */
    .sidebar.mobile-mode {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: auto;
        min-height: 60px;
        z-index: 1000;
        background: #ffffff;
        border-top: 1px solid var(--border-color);
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
        /* Softer shadow */

        display: flex !important;
        flex-direction: row !important;
        align-items: stretch;
        gap: 6px;
        /* Space between all buttons */
        padding: 6px 8px !important;
        /* Floating effect padding */

        transform: none;
        border-right: none;
        border-bottom: none;
    }

    /* Hide Sidebar Header completely in Bottom Nav mode */
    .sidebar.mobile-mode .sidebar-header {
        display: none !important;
    }

    /* Flatten the structure so all buttons share the same parent context */
    .sidebar.mobile-mode .nav-links,
    .sidebar.mobile-mode .sidebar-footer {
        display: contents !important;
    }

    /* Nav Items (Tabs) */
    .sidebar.mobile-mode .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        padding: 6px 2px;
        background: transparent;
        border: none;
        color: var(--text-muted);
        font-size: 0.6rem;
        height: auto;
        min-height: 48px;
        width: auto;
        min-width: 0;
        flex: 1;
        border-radius: 10px;
        transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .sidebar.mobile-mode .nav-item i {
        font-size: 1.2rem;
        margin-bottom: 2px;
        transition: transform 0.2s;
    }

    .sidebar.mobile-mode .nav-item span {
        display: block;
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 100%;
        font-size: 0.55rem;
        /* Slightly smaller to fit */
    }

    /* Active State Polish */
    .sidebar.mobile-mode .nav-item.active {
        color: var(--primary-color);
        background: rgba(79, 70, 229, 0.1);
        /* Subtle background */
        border: none;
        border-radius: 8px;
    }

    .sidebar.mobile-mode .nav-item.active i {
        transform: translateY(-2px);
    }

    /* Download Button Polish for Mobile */
    .sidebar.mobile-mode .sidebar-footer .btn-primary {
        display: flex !important;
        background: transparent !important;
        color: var(--text-muted) !important;
        box-shadow: none !important;
        border: none !important;
        width: auto !important;
        height: auto;
        min-height: 44px;
        padding: 4px 2px;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        font-size: 0.65rem;
        border-radius: 8px;
        flex: 1;
        /* Share space equally */
    }

    .sidebar.mobile-mode .sidebar-footer .btn-primary i {
        font-size: 1.2rem;
        margin-right: 0;
        /* Remove existing margin */
        margin-bottom: 2px;
    }

    .sidebar.mobile-mode .sidebar-footer .btn-primary span {
        display: block;
        font-size: 0.55rem;
        font-weight: 500;
        white-space: nowrap;
    }

    .sidebar.mobile-mode .sidebar-footer .btn-primary:active {
        background: rgba(0, 0, 0, 0.05) !important;
    }

    /* Logout Button Polish */
    .sidebar.mobile-mode .sidebar-footer .logout-btn {
        width: auto !important;
        height: auto;
        min-height: 44px;
        padding: 4px 2px;
        background: transparent;
        color: var(--error-color);
        border: none;
        /* Remove border */
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        font-size: 0.65rem;
        border-radius: 8px;
        flex: 1;
        /* Share space equally */
    }

    .sidebar.mobile-mode .sidebar-footer .logout-btn:active {
        background: rgba(239, 68, 68, 0.1);
    }

    .sidebar.mobile-mode .sidebar-footer .logout-btn i {
        font-size: 1.2rem;
        margin: 0;
        margin-bottom: 2px;
    }

    .sidebar.mobile-mode .sidebar-footer .logout-btn span {
        display: block !important;
        font-size: 0.55rem !important;
    }

    /* Hide hamburger */
    .hamburger-menu {
        display: none !important;
    }

    /* Adjust Main Content to not be hidden by Bottom Bar */
    .main-content {
        margin-left: 0;
        padding: 1rem 1rem 5rem 1rem;
        width: 100%;
    }

    /* Top Bar Reset */
    .top-bar {
        padding: 1.5rem 1rem;
        min-height: 100px;
        margin-bottom: 1rem;
        border-radius: var(--radius-lg);
    }

    /* MODAL FIXES for Mobile */
    .modal-content,
    #docPreviewModal .modal-content,
    #certModal .modal-content {
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;
        border-radius: 0 !important;
        margin: 0 !important;
        top: 0;
        left: 0;
        position: fixed;
    }

    .modal-body {
        height: calc(100% - 60px) !important;
        padding: 0 !important;
        overflow: hidden;
    }

    iframe {
        width: 100%;
        height: 100%;
        border: none;
        display: block;
    }

    /* Login Cards Mobile */
    .login-wrapper-modern {
        flex-direction: column;
        align-items: center;
    }

    .modern-login-card {
        max-width: 100%;
    }
}

.welcome-text h1 {
    font-size: 1.75rem;
    margin: 0;
    color: white;
    /* Contrast against dark bg */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    line-height: 1.2;
    /* Better line height */
}

.welcome-text p {
    color: rgba(255, 255, 255, 0.9);
    margin: 0.25rem 0 0;
}

/* User Profile */
.user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar {
    width: 45px;
    height: 45px;
    background: white;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.purple {
    background: #e0e7ff;
    color: #4338ca;
}

.stat-icon.blue {
    background: #dbeafe;
    color: #1e40af;
}

.stat-icon.orange {
    background: #ffedd5;
    color: #c2410c;
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0;
}

/* Dashboard Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.glass-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2 {
    font-size: 1.1rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-main);
}

/* Data Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

th {
    background: #f9fafb;
    padding: 1rem 1.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background: #f9fafb;
}

/* Student List */
.student-list-container {
    padding: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.search-bar {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    display: flex;
    align-items: center;
}

.search-bar i {
    position: absolute;
    left: 2.2rem;
    color: var(--text-light);
}

.search-bar input {
    padding-left: 2.5rem;
    border-radius: 20px;
    background: #f9fafb;
    border: 1px solid transparent;
}

.search-bar input:focus {
    background: white;
    border-color: var(--primary-color);
}

.student-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.student-item:hover {
    background: #f3f4f6;
    transform: translateX(2px);
}

.student-item.selected {
    background: #eff6ff;
    border-color: #bfdbfe;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.student-item .name {
    font-weight: 600;
    color: var(--text-main);
    display: block;
}

.student-item .details {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Evaluation Panel */
.sticky-panel {
    position: sticky;
    top: 1.5rem;
    max-height: calc(100vh - 3rem);
    display: flex;
    flex-direction: column;
}

.panel-content {
    padding: 1.5rem;
    overflow-y: auto;
}

.empty-state {
    padding: 3rem;
    text-align: center;
    color: var(--text-muted);
}

.student-profile-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.profile-avatar-large {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid white;
    box-shadow: var(--shadow-md);
}

.meta-info {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.badge {
    background: #dbeafe;
    color: #1e40af;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.roll-no {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 0.25rem 0;
}

.section-divider {
    height: 1px;
    background: var(--border-color);
    margin: 1.5rem 0;
}

/* Tabs */
.tabs {
    background: #f3f4f6;
    padding: 0.25rem;
    border-radius: var(--radius-md);
    display: flex;
    margin-bottom: 1.5rem;
}

.tab-btn {
    flex: 1;
    padding: 0.5rem;
    text-align: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Evaluation Form */
.slider-group {
    margin-bottom: 1.5rem;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.score-display {
    background: var(--primary-color);
    color: white;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

input[type=range] {
    width: 100%;
    height: 6px;
    background: #e5e7eb;
    border-radius: 5px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    transition: all 0.2s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.full-width {
    width: 100%;
    padding: 0.875rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

.mt-4 {
    margin-top: 1.5rem;
}


/* Responsive & Utilities */
@media (max-width: 1024px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.1);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }

    .top-bar {
        padding: 2rem 1.5rem;
        flex-direction: row;
        border-radius: var(--radius-lg);
        margin-bottom: 1.5rem;
    }

    .hamburger-menu {
        display: flex;
        /* Show flex on mobile */
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        text-align: center;
    }

    .hamburger-menu {
        align-self: flex-start;
    }

    .welcome-text {
        text-align: left;
    }

    .user-profile {
        width: 100%;
        justify-content: flex-start;
    }

    .card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .btn-primary {
        width: 100%;
    }

    /* Table Responsive Card View */
    table,
    thead,
    tbody,
    th,
    td,
    tr {
        display: block;
    }

    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    tr {
        margin-bottom: 1rem;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        background: white;
        padding: 0.5rem;
    }

    td {
        border: none;
        position: relative;
        padding-left: 50%;
        text-align: right;
        border-bottom: 1px solid #eee;
    }

    td:before {
        position: absolute;
        top: 1rem;
        left: 1rem;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        text-align: left;
        font-weight: 600;
        color: var(--text-muted);
        content: attr(data-label);
        /* Requires HTML update for data-label, fallback to flow */
    }
}

/* Dynamic Form Entries */
.dynamic-entry {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px dashed var(--border-color);
    position: relative;
}

.dynamic-entry:last-child {
    border-bottom: none;
}

.dynamic-entry-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    position: relative;
}

@media (min-width: 768px) {
    .dynamic-entry-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Admin Specifics */

.score-display {
    background: var(--primary-color);
    color: white;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

input[type=range] {
    width: 100%;
    height: 6px;
    background: #e5e7eb;
    border-radius: 5px;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    transition: all 0.2s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.full-width {
    width: 100%;
    padding: 0.875rem;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

/* Utilities */
.hidden {
    display: none !important;
}

.mt-4 {
    margin-top: 1.5rem;
}


/* Responsive & Utilities */
@media (max-width: 1024px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.1);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }

    .top-bar {
        padding: 2rem 1.5rem;
        flex-direction: row;
        border-radius: var(--radius-lg);
        margin-bottom: 1.5rem;
    }

    .hamburger-menu {
        display: flex;
        /* Show flex on mobile */
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        text-align: center;
    }

    .hamburger-menu {
        align-self: flex-start;
    }

    .welcome-text {
        text-align: left;
    }

    .user-profile {
        width: 100%;
        justify-content: flex-start;
    }

    .card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .btn-primary {
        width: 100%;
    }

    /* Table Responsive Card View */
    table,
    thead,
    tbody,
    th,
    td,
    tr {
        display: block;
    }

    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    tr {
        margin-bottom: 1rem;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        background: white;
        padding: 0.5rem;
    }

    td {
        border: none;
        position: relative;
        padding-left: 50%;
        text-align: right;
        border-bottom: 1px solid #eee;
    }

    td:before {
        position: absolute;
        top: 1rem;
        left: 1rem;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        text-align: left;
        font-weight: 600;
        color: var(--text-muted);
        content: attr(data-label);
        /* Requires HTML update for data-label, fallback to flow */
    }

    /* Override for Performance/Leaderboard Table to stay horizontal */
    .leaderboard-table table,
    .leaderboard-table thead,
    .leaderboard-table tbody,
    .leaderboard-table th,
    .leaderboard-table td,
    .leaderboard-table tr {
        display: table-cell;
    }

    .leaderboard-table table {
        display: table;
        width: 100%;
    }

    .leaderboard-table thead {
        display: table-header-group;
    }

    .leaderboard-table tbody {
        display: table-row-group;
    }

    .leaderboard-table tr {
        display: table-row;
        border: none;
        margin-bottom: 0;
        padding: 0;
    }

    .leaderboard-table thead tr {
        position: static;
    }

    .leaderboard-table th,
    .leaderboard-table td {
        padding: 0.75rem;
        text-align: left;
        border-bottom: 1px solid var(--border-color);
        white-space: nowrap;
    }

    .leaderboard-table td:before {
        content: none;
    }

    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Dynamic Form Entries */
.dynamic-entry {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px dashed var(--border-color);
    position: relative;
    padding-right: 40px;
}

.dynamic-entry:last-child {
    border-bottom: none;
}

.dynamic-entry-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    position: relative;
    padding-right: 40px;
    align-items: center;
}

@media (min-width: 768px) {
    .dynamic-entry-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Admin Specifics */
.view-toggle {
    display: none;
    /* Hide if not used */
}

/* Auth Pages Updates */
.auth-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.auth-box {
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
}

.login-wrapper-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    width: 100%;
    max-width: 900px;
}

.card-header-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon-large {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

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

/* 3D Background & Landing Page Styles */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
}

body.landing-page {
    background: transparent;
    overflow-x: hidden;
    color: #1e293b;
}

body.landing-page .container {
    position: relative;
    z-index: 2;
}

body.landing-page .modern-login-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.landing-page .modern-login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
}

/* Enhancing inputs for light theme */
body.landing-page .input-group input {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #334155;
}

body.landing-page .input-group input:focus {
    background: #ffffff;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}



.top-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    text-align: center;
}

.hamburger-menu {
    align-self: flex-start;
}

.welcome-text {
    text-align: left;
}

.user-profile {
    width: 100%;
    justify-content: flex-start;
}

.card-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

.btn-primary {
    width: 100%;
}

/* Table Responsive Card View */
@media (max-width: 768px) {

    table,
    thead,
    tbody,
    th,
    td,
    tr {
        display: block;
    }

    thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    tr {
        margin-bottom: 1rem;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        background: white;
        padding: 0.5rem;
    }

    td {
        border: none;
        position: relative;
        padding-left: 50%;
        text-align: right;
        border-bottom: 1px solid #eee;
    }

    td:before {
        position: absolute;
        top: 1rem;
        left: 1rem;
        width: 45%;
        padding-right: 10px;
        white-space: nowrap;
        text-align: left;
        font-weight: 600;
        color: var(--text-muted);
        content: attr(data-label);
        /* Requires HTML update for data-label, fallback to flow */
    }
}

/* Dynamic Form Entries */
.dynamic-entry {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px dashed var(--border-color);
    position: relative;
    padding-right: 40px;
}

.dynamic-entry:last-child {
    border-bottom: none;
}

.dynamic-entry-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    position: relative;
    padding-right: 40px;
    align-items: center;
}

@media (min-width: 768px) {
    .dynamic-entry-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Admin Specifics */
.view-toggle {
    display: none;
    /* Hide if not used */
}

/* Auth Pages Updates */
.auth-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.auth-box {
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
}

.login-wrapper-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    width: 100%;
    max-width: 900px;
}

.card-header-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon-large {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

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

/* 3D Background & Landing Page Styles */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at center, #ffffff 0%, #f8fafc 100%);
}

body.landing-page {
    background: transparent;
    overflow-x: hidden;
    color: #1e293b;
}

body.landing-page .container {
    position: relative;
    z-index: 2;
}

body.landing-page .modern-login-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.landing-page .modern-login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
}

/* Enhancing inputs for light theme */
body.landing-page .input-group input {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #334155;
}

body.landing-page .input-group input:focus {
    background: #ffffff;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* File Link Button */
.file-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: #e0e7ff;
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.file-link-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
}

.file-link-btn i {
    font-size: 0.9rem;
}


body.landing-page .subtitle {
    color: #64748b;
}

body.landing-page h2 {
    color: #1e293b;
}

/* Profile Photo Styles */
.profile-photo-container {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-photo-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--bg-card);
    margin: 2% auto;
    padding: 0;
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    animation: modalSlideUp 0.3s ease-out;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
}

.modal-body-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex: 1;
    overflow: hidden;
}

@media (max-width: 992px) {
    .modal-body-split {
        grid-template-columns: 1fr;
        overflow-y: auto;
    }

    .modal-content {
        height: 95vh;
        margin: 2.5vh auto;
    }
}

.modal-details-col {
    padding: 2rem;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    background: #f8fafc;
}

.modal-scoring-col {
    padding: 2rem;
    overflow-y: auto;
    background: #fff;
}

.close-modal {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.close-modal:hover {
    color: var(--error-color);
}

.full-col {
    width: 100%;
}

.modal .student-profile-header {
    margin-bottom: 0;
}

.submission-scroll {
    max-height: none;
    /* Let the column handle scrolling */
}

/* Login Page Header Banner */
.login-header-banner {
    background-image: url('../navv.jpg');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    height: 180px;
    /* Fixed height for banner */
    width: 100%;
    max-width: 900px;
    margin: 0 auto 3rem auto;
    position: relative;
    border-radius: var(--radius-lg);
    background-color: white;
    /* Fallback/Fill */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Remove overlay and text styles as they are no longer needed */
/* 
.login-header-banner::before { content: none; } 
*/

/* Global Modal Styles */
.modal-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999 !important;
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease-out;
    margin: 0 !important;
    padding: 0 !important;
}

.modal-content {
    background: #ffffff;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    margin: 0;
    /* Override any auto margins */
}

.modal-header {
    padding: 1.25rem 2rem;
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 0;
    overflow-y: auto;
    background: var(--bg-body);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-modal-btn:hover {
    color: var(--error-color);
    background: #fee2e2;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Advanced 3D Visuals & Glassmorphism Overrides */
body.landing-page .modern-login-card,
body.landing-page .instruction-card {
    background: rgba(255, 255, 255, 0.82) !important;
    backdrop-filter: blur(25px) saturate(200%) !important;
    -webkit-backdrop-filter: blur(25px) saturate(200%) !important;
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    box-shadow:
        0 10px 15px -3px rgba(0, 0, 0, 0.05),
        0 4px 6px -2px rgba(0, 0, 0, 0.02),
        inset 0 0 0 1px rgba(255, 255, 255, 0.2) !important;
    transition: transform 0.15s ease-out, box-shadow 0.15s ease-out !important;
    position: relative;
    overflow: hidden;
}

body.landing-page .modern-login-card:hover,
body.landing-page .instruction-card:hover {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15) !important;
}

.floating-3d-accent {
    position: fixed;
    z-index: 1;
    pointer-events: none;
    filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.1));
    animation: float3d 8s ease-in-out infinite;
    opacity: 0.35;
    user-select: none;
    transition: opacity 0.3s ease;
}

.floating-3d-accent:hover {
    opacity: 0.8;
}

@keyframes float3d {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }

    33% {
        transform: translate(30px, -40px) rotate(10deg) scale(1.1);
    }

    66% {
        transform: translate(-20px, 30px) rotate(-10deg) scale(0.9);
    }
}

.accent-1 {
    top: 2%;
    left: 2%;
    font-size: 3.5rem;
    animation-delay: 0s;
}

.accent-2 {
    bottom: 2%;
    right: 2%;
    font-size: 4rem;
    animation-delay: 3s;
}

.accent-3 {
    top: 5%;
    right: 5%;
    font-size: 2.8rem;
    animation-delay: 5s;
}

.accent-4 {
    bottom: 5%;
    left: 5%;
    font-size: 3rem;
    animation-delay: 1.5s;
}

/* Added new accent class */
.btn-remove {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: #f1f5f9;
    color: #0f172a;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.8rem;
    padding: 0;
    position: absolute;
    right: 0;
    top: 10px;
    box-shadow: 0 2px 4px rgba(15, 23, 42, 0.1);
}

.btn-remove:hover {
    background-color: #0f172a;
    color: white;
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 4px 8px rgba(15, 23, 42, 0.2);
}

.btn-remove i {
    pointer-events: none;
}

/* Topper Modal Styles */
.topper-input-group {
    background: #f8fafc;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    margin-bottom: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
}

.topper-input-group:hover {
    border-color: var(--primary-color);
    background: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.05);
}

.topper-input-group label {
    font-weight: 600;
    color: #334155;
    font-size: 0.9rem;
}

.topper-input {
    width: 100px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-weight: 700;
    color: var(--primary-color);
    text-align: right;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
}

.topper-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}
/* Modal Styling - Centralized for Admin Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    animation: modalFadeIn 0.3s ease-out;
    position: relative;
    width: 100%;
    max-width: 500px;
    padding: 1.5rem;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s;
}

.btn-close:hover {
    color: var(--error-color);
}

.btn-close::before {
    content: " \f00d\;
 font-family: \Font Awesome 6 Free\;
 font-weight: 900;
}

/* Global Word Wrap Fixes */
table { table-layout: fixed; width: 100%; }
table td, table th { overflow-wrap: break-word; word-wrap: break-word; }
.sidebar-branch { display: block; max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.info-card .value { overflow-wrap: break-word; word-wrap: break-word; word-break: break-word; }