/* Premium Styling for School Management System (EMIS) */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary-h: 215;
    --primary-s: 85%;
    --primary-l: 35%;
    --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
    --primary-hover: hsl(var(--primary-h), var(--primary-s), calc(var(--primary-l) - 5%));
    --primary-light: hsl(var(--primary-h), var(--primary-s), 95%);
    --primary-glow: hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.15);

    --secondary-h: 38;
    --secondary-s: 95%;
    --secondary-l: 50%;
    --secondary: hsl(var(--secondary-h), var(--secondary-s), var(--secondary-l));
    --secondary-hover: hsl(var(--secondary-h), var(--secondary-s), calc(var(--secondary-l) - 5%));

    --success: hsl(142, 72%, 29%);
    --success-light: hsl(142, 72%, 95%);
    --warning: hsl(38, 92%, 50%);
    --warning-light: hsl(38, 92%, 95%);
    --danger: hsl(350, 89%, 43%);
    --danger-light: hsl(350, 89%, 95%);

    --bg-main: radial-gradient(ellipse at 50% 0%, hsl(215, 60%, 98%) 0%, hsl(210, 30%, 96%) 100%);
    --bg-card: rgba(255, 255, 255, 0.85);
    --border-card: rgba(255, 255, 255, 0.7);
    --text-primary: hsl(215, 60%, 12%);
    --text-secondary: hsl(215, 20%, 45%);
    --text-light: hsl(215, 15%, 60%);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Shadows & Transitions */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.02);
    --shadow-md: 0 8px 20px rgba(18, 38, 63, 0.04);
    --shadow-lg: 0 16px 36px rgba(18, 38, 63, 0.08);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: var(--font-body);
    background: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Header & Navigation */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1rem 2rem;
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.logo-text h1 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--primary);
    line-height: 1.2;
}

.logo-text p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Control Bar (Language & Role Toggle) */
.controls-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.lang-selector {
    display: flex;
    background: rgba(226, 232, 240, 0.5);
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    gap: 2px;
}

.lang-btn {
    border: none;
    background: transparent;
    padding: 0.4rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: calc(var(--radius-sm) - 2px);
    transition: var(--transition);
}

.lang-btn:hover {
    color: var(--primary);
}

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

.role-badge {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary-glow);
}

/* Main Layout & App Views */
main {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 2rem;
}

.view-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    min-height: 550px;
}

/* Welcome Page (Role Selector) */
.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.welcome-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.welcome-subtitle {
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
}

.role-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1000px;
}

.role-card {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.role-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: var(--transition);
}

.role-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.role-card.principal-card:hover::before {
    background: var(--primary);
}
.role-card.teacher-card:hover::before {
    background: var(--secondary);
}
.role-card.student-card:hover::before {
    background: var(--success);
}

.role-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.principal-card .role-icon {
    background: var(--primary-light);
    color: var(--primary);
}
.teacher-card .role-icon {
    background: hsl(38, 95%, 95%);
    color: var(--secondary);
}
.student-card .role-icon {
    background: var(--success-light);
    color: var(--success);
}

.role-card:hover .role-icon {
    transform: scale(1.1);
}

.role-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.role-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Dashboard Layout (Principal & Teacher Panels) */
.dashboard-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 600px;
}

.dashboard-sidebar {
    background: rgba(248, 250, 252, 0.8);
    border-right: 1px solid rgba(226, 232, 240, 0.8);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: none;
    background: transparent;
    padding: 0.8rem 1rem;
    width: 100%;
    text-align: left;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.sidebar-btn:hover {
    background: rgba(226, 232, 240, 0.5);
    color: var(--primary);
}

.sidebar-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.sidebar-btn.logout-btn {
    color: var(--danger);
}
.sidebar-btn.logout-btn:hover {
    background: var(--danger-light);
}

.dashboard-content {
    padding: 2.5rem;
    overflow-y: auto;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    padding-bottom: 1rem;
}

.content-title h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
}

.content-title p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card.students-stat .stat-icon { background: var(--primary-light); color: var(--primary); }
.stat-card.classes-stat .stat-icon { background: hsl(38, 95%, 95%); color: var(--secondary); }
.stat-card.discipline-stat .stat-icon { background: var(--danger-light); color: var(--danger); }

.stat-icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.stat-info .stat-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-info .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Form Styles */
.form-container {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    max-width: 650px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(226, 232, 240, 1);
    border-radius: var(--radius-sm);
    outline: none;
    color: var(--text-primary);
    transition: var(--transition);
    background: rgba(248, 250, 252, 0.5);
}

.form-control:focus {
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

/* Primary Button Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    outline: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--primary-glow);
}

.btn-secondary {
    background: rgba(226, 232, 240, 0.8);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(226, 232, 240, 1);
}

/* Modern Tables styling */
.table-responsive {
    overflow-x: auto;
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-top: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th {
    background: rgba(248, 250, 252, 1);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(226, 232, 240, 1);
}

.data-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    color: var(--text-secondary);
}

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

.data-table tbody tr:hover td {
    background: rgba(248, 250, 252, 0.5);
    color: var(--text-primary);
}

/* Discipline Badges */
.badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    text-transform: capitalize;
}

.badge-merit { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--danger-light); color: var(--danger); }
.badge-neutral { background: var(--warning-light); color: var(--warning); }

/* Student Search Portal View */
.student-portal-wrapper {
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.student-portal-card {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 3rem 2.5rem;
}

.portal-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.portal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary);
    font-weight: 700;
}

.portal-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.search-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.search-btn-wrapper {
    text-align: center;
}

.search-btn {
    width: 100%;
    max-width: 300px;
    font-size: 1rem;
    padding: 0.9rem;
}

/* Student Results Sheet (Report Card) */
.student-profile-header {
    background: linear-gradient(135deg, var(--primary), hsl(var(--primary-h), var(--primary-s), 25%));
    color: white;
    padding: 2.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.profile-info h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
}

.profile-info p {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-top: 0.25rem;
}

.profile-admission {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
}

.results-section-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.results-section-title svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.term-results-container {
    margin-bottom: 3rem;
}

.term-group {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
}

.term-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-glow);
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

/* Progress bar inside reports */
.subject-result-item {
    margin-bottom: 1.25rem;
}

.subject-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.subject-name {
    color: var(--text-primary);
}

.subject-score {
    color: var(--primary);
}

.progress-track {
    background: rgba(226, 232, 240, 0.6);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 1s ease-out;
}

/* Grading status colors */
.grade-a { background: var(--success); }
.grade-b { background: hsl(142, 60%, 45%); }
.grade-c { background: var(--secondary); }
.grade-s { background: hsl(38, 90%, 60%); }
.grade-f { background: var(--danger); }

/* Marks Stats summary inside term card */
.term-summary-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    background: rgba(248, 250, 252, 0.8);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    margin-top: 1.5rem;
    border: 1px dashed rgba(226, 232, 240, 1);
    text-align: center;
}

.summary-stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.summary-stat-val {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 0.25rem;
}

/* Discipline Timeline */
.discipline-timeline {
    position: relative;
    padding-left: 2rem;
    margin-top: 1.5rem;
}

.discipline-timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 5px;
    bottom: 5px;
    width: 2px;
    background: rgba(226, 232, 240, 1);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -29px;
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-dot.dot-merit { background: var(--success); }
.timeline-dot.dot-warning { background: var(--danger); }
.timeline-dot.dot-neutral { background: var(--warning); }

.timeline-content {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.timeline-category {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 500;
}

.timeline-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.timeline-action {
    font-size: 0.8rem;
    color: var(--text-primary);
    background: var(--primary-light);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary);
    font-weight: 500;
}

/* Alert Notification Banner */
.alert-banner {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transform: translateY(150%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

.alert-banner.show {
    transform: translateY(0);
}

.alert-banner.alert-success { background: var(--success); }
.alert-banner.alert-error { background: var(--danger); }

/* Language Selector styling in footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 500;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    margin-top: 4rem;
}

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

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Teacher Profiles Selection List */
.teacher-profile-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.teacher-profile-card {
    border: 2px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    background: white;
    text-align: center;
}

.teacher-profile-card:hover {
    border-color: var(--secondary);
    background: hsl(38, 95%, 99%);
}

.teacher-profile-card.selected {
    border-color: var(--primary);
    background: var(--primary-light);
}

.teacher-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.teacher-subject {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Teacher Sub-Navigation Tabs */
.tab-container {
    display: flex;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    margin-bottom: 2rem;
    gap: 1rem;
}

.tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0.75rem 0.5rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--primary);
}

.tab-btn.active {
    color: var(--primary);
    border-color: var(--primary);
}

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

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Sri Lankan Flag colors indicator */
.sl-indicator {
    height: 4px;
    background: linear-gradient(to right, #ffbe00 0%, #ffbe00 20%, #00d285 20%, #00d285 40%, #ff4b4b 40%, #ff4b4b 80%, #ffbe00 80%, #ffbe00 100%);
    width: 100%;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    .dashboard-sidebar {
        border-right: none;
        border-bottom: 1px solid rgba(226, 232, 240, 0.8);
        padding: 1.5rem;
    }
    .sidebar-menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }
    .sidebar-btn {
        width: auto;
        white-space: nowrap;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.full-width {
        grid-column: span 1;
    }
}

@media (max-width: 600px) {
    header {
        padding: 1rem;
    }
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .controls-section {
        width: 100%;
        justify-content: space-between;
    }
    main {
        padding: 0 1rem;
        margin: 1rem auto;
    }
    .dashboard-content {
        padding: 1.5rem;
    }
    .search-grid {
        grid-template-columns: 1fr;
    }
    .student-profile-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .term-summary-stats {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

/* Login Screen Styles */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

.login-card {
    background: white;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 3rem 2.5rem;
    width: 100%;
    transition: var(--transition);
}

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

.login-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary);
    font-weight: 700;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.login-btn {
    margin-top: 0.5rem;
    padding: 0.85rem;
    font-size: 1rem;
}