/* ========================================
   ROOT VARIABLES - Educational Color Palette
   ======================================== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #059669;
    --secondary-dark: #047857;
    --accent-color: #f59e0b;
    --accent-light: #fbbf24;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text: #fffff;
    --text-light: #9ca3af;
    --bg-white: #ffffff;
    --bg-light: #f9fafb;
    --bg-gray: #f3f4f6;
    --bg-hover: #e5e7eb;
    --border-color: #e5e7eb;
    --border-focus: #3b82f6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.3s ease;
}

/* ========================================
   GLOBAL RESETS & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========================================
   NAVBAR - Educational Theme
   ======================================== */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    border-bottom: none !important;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white !important;
    letter-spacing: -0.02em;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

    .navbar-brand:hover {
        color: var(--accent-light) !important;
        transform: translateY(-2px);
    }

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.625rem 1rem !important;
    margin: 0 0.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
}

    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link:focus {
        color: white !important;
        background-color: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

    .navbar-nav .nav-link.active {
        background-color: rgba(255, 255, 255, 0.2);
        color: white !important;
    }

.navbar-nav .dropdown-toggle::after {
    margin-left: 0.5rem;
    vertical-align: 0.15em;
}

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    margin-top: 0.5rem;
    min-width: 250px;
}

.dropdown-item {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

    .dropdown-item:hover,
    .dropdown-item:focus {
        background-color: var(--bg-light);
        color: var(--primary-color);
        transform: translateX(5px);
    }

.dropdown-header {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 1rem;
    margin-top: 0.5rem;
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: var(--border-color);
}

/* Mobile navbar adjustments */
@media (max-width: 576px) {
    .navbar-nav {
        background-color: rgba(0, 0, 0, 0.1);
        padding: 1rem;
        border-radius: var(--radius-md);
        margin-top: 1rem;
    }

        .navbar-nav .nav-link {
            margin: 0.25rem 0;
        }
}

/* ========================================
   HOME PAGE - Hero & Feature Cards
   ======================================== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0;
    border-radius: var(--radius-xl);
    margin: 2rem 0;
    box-shadow: var(--shadow-xl);
    text-align: center;
}

    .hero-section h1 {
        font-size: 3rem;
        font-weight: 800;
        margin-bottom: 1rem;
        letter-spacing: -0.02em;
    }

    .hero-section .lead {
        font-size: 1.25rem;
        opacity: 0.95;
        max-width: 700px;
        margin: 0 auto 2rem;
        line-height: 1.8;
    }

.hero-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: white;
    color: var(--primary-color);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    font-size: 1.1rem;
}

    .hero-cta:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-xl);
        color: var(--primary-dark);
    }

.features-section {
    margin: 3rem 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

    .section-title::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
        border-radius: 2px;
    }

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    overflow: hidden;
}

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
        transform: scaleX(0);
        transition: var(--transition);
    }

    .feature-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-xl);
    }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.feature-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

    .feature-link:hover {
        background-color: var(--primary-dark);
        transform: translateX(5px);
        color: white;
    }

/* ========================================
   PAGE HEADERS & TITLES - COMPACT
   ======================================== */
.page-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
    letter-spacing: -0.02em;
}

.lead {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 400;
}

h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.1rem;
}

/* ========================================
   CARDS & PANELS - COMPACT DESIGN
   ======================================== */
.card {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 1.25rem;
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    background-color: var(--bg-light);
    font-size: 0.95rem;
}

    .card-header.bg-primary,
    .card-header.bg-success,
    .card-header.bg-warning,
    .card-header.bg-info {
        color: white !important;
        border-bottom: none;
    }

    .card-header.bg-primary {
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
    }

    .card-header.bg-success {
        background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%) !important;
    }

    .card-header.bg-warning {
        background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%) !important;
    }

    .card-header.bg-info {
        background: linear-gradient(135deg, var(--info) 0%, var(--primary-color) 100%) !important;
    }

.card-body {
    padding: 1.25rem;
}

.card-header h4 {
    margin: 0;
    font-size: 1rem;
}

/* Compact details view */
.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.detail-item {
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.25rem;
}

.detail-value {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ========================================
   FORMS & INPUTS - COMPACT DESIGN
   ======================================== */
.form-group {
    margin-bottom: 0.75rem;
}

.form-label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.form-control,
.form-select {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-primary);
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

    .form-control:focus,
    .form-select:focus {
        outline: none;
        border-color: var(--border-focus);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
    }

    .form-control:disabled,
    .form-control[readonly] {
        background-color: var(--bg-gray);
        cursor: not-allowed;
        opacity: 0.7;
        font-size: 0.85rem;
    }

textarea.form-control {
    min-height: 80px;
    resize: vertical;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}

.form-check-input {
    width: 1.1rem;
    height: 1.1rem;
    margin-right: 0.5rem;
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

    .form-check-input:checked {
        background-color: var(--primary-color);
        border-color: var(--primary-color);
    }

    .form-check-input:focus {
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
    }

.form-check-label {
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-switch .form-check-input {
    width: 2.5em;
    height: 1.3em;
    border-radius: 2em;
}

input[type="file"].form-control {
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Compact form sections */
.form-section {
    margin-bottom: 1.5rem;
}

.form-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

/* ========================================
   BUTTONS - COMPACT DESIGN
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.5;
    white-space: nowrap;
}

    .btn:focus {
        outline: none;
        box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
    }

    .btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
        transform: none !important;
    }

/* Button sizes */
.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.05rem;
}

/* Button variants */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

    .btn-primary:hover {
        background-color: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

.btn-secondary {
    background-color: var(--text-secondary);
    color: white;
    box-shadow: var(--shadow-sm);
}

    .btn-secondary:hover {
        background-color: var(--text-primary);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

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

    .btn-success:hover {
        background-color: var(--secondary-dark);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

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

    .btn-warning:hover {
        background-color: #d97706;
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

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

    .btn-danger:hover {
        background-color: #dc2626;
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

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

    .btn-info:hover {
        background-color: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
        color: white;
    }

.btn i,
.btn svg {
    margin-right: 0.35rem;
    font-size: 0.9em;
}

/* ========================================
   BUTTON GROUPS - ENHANCED SIZE
   ======================================== */
.btn-group {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
}

    .btn-group .btn {
        margin: 0;
        flex: 0 0 auto;
        padding: 0.6rem 1.2rem;
        font-size: 0.95rem;
        min-height: 2.75rem;
    }

    /* Specific styles for your mentioned buttons */
    .btn-group .btn-info,
    .btn-group .btn-warning,
    .btn-group .btn-success,
    .btn-group .btn-danger {
        padding: 0.65rem 1.3rem;
        font-size: 0.95rem;
        font-weight: 300;
        min-width: 50px;
    }

    .btn-group .btn-sm {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        min-height: 2.5rem;
    }

    .btn-group .btn-info {
        background: linear-gradient(135deg, var(--info) 0%, var(--primary-color) 100%);
    }

        .btn-group .btn-info:hover {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
        }

    .btn-group .btn-warning {
        background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    }

        .btn-group .btn-warning:hover {
            background: linear-gradient(135deg, #d97706 0%, var(--accent-color) 100%);
        }

    .btn-group .btn-success {
        background: linear-gradient(135deg, var(--success) 0%, var(--secondary-color) 100%);
    }

        .btn-group .btn-success:hover {
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
        }

    .btn-group .btn-danger {
        background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    }

        .btn-group .btn-danger:hover {
            background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
        }

/* ========================================
   TABLES - MODERN COMPACT DESIGN
   ======================================== */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    background: white;
    margin-bottom: 1.5rem;
}

.table {
    width: 100%;
    margin-bottom: 0;
    border-collapse: collapse;
    font-size: 0.85rem;
}

    .table thead {
        background-color: var(--bg-light);
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.75rem;
        letter-spacing: 0.03em;
    }

        .table thead th {
            padding: 0.75rem 0.5rem;
            border-bottom: 2px solid var(--border-color);
            color: var(--text-primary);
            white-space: nowrap;
            font-weight: 700;
        }

    .table tbody tr {
        transition: var(--transition);
        border-bottom: 1px solid var(--border-color);
    }

        .table tbody tr:hover {
            background-color: rgba(37, 99, 235, 0.03);
            transform: scale(1.001);
        }

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

    .table tbody td {
        padding: 0.65rem 0.5rem;
        vertical-align: middle;
        color: var(--text-primary);
        font-size: 0.85rem;
    }

/* Table color variants */
.table-primary thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

    .table-primary thead th {
        color: white;
        border-bottom-color: var(--primary-dark);
    }

.table-success thead {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: white;
}

    .table-success thead th {
        color: white;
        border-bottom-color: var(--secondary-dark);
    }

.table-warning thead {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: white;
}

    .table-warning thead th {
        color: white;
        border-bottom-color: #d97706;
    }

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.015);
}

.table-bordered {
    border: 1px solid var(--border-color);
}

    .table-bordered th,
    .table-bordered td {
        border: 1px solid var(--border-color);
    }

/* Modern table action buttons */
.table .btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.table .btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    min-height: 2.25rem;
    white-space: nowrap;
}

/* Compact status indicators in tables */
.table .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
}

/* Hide less important columns on smaller screens */
@media (max-width: 1200px) {
    .table th:nth-child(3),
    .table td:nth-child(3),
    .table th:nth-child(5),
    .table td:nth-child(5) {
        display: none;
    }
}

@media (max-width: 768px) {
    .table th:nth-child(4),
    .table td:nth-child(4),
    .table th:nth-child(7),
    .table td:nth-child(7) {
        display: none;
    }

    .table {
        font-size: 0.8rem;
    }

        .table thead th {
            padding: 0.5rem 0.35rem;
        }

        .table tbody td {
            padding: 0.5rem 0.35rem;
        }
}

/* ========================================
   BADGES & STATUS INDICATORS
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

    .badge.bg-success {
        background-color: var(--success) !important;
        color: white;
    }

    .badge.bg-warning {
        background-color: var(--warning) !important;
        color: white;
    }

    .badge.bg-danger {
        background-color: var(--danger) !important;
        color: white;
    }

    .badge.bg-secondary {
        background-color: var(--text-secondary) !important;
        color: white;
    }

    .badge.bg-info {
        background-color: var(--info) !important;
        color: white;
    }

    .badge.bg-primary {
        background-color: var(--primary-color) !important;
        color: white;
    }

/* ========================================
   ALERTS
   ======================================== */
.alert {
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    font-weight: 500;
}

    .alert h4,
    .alert h5 {
        margin-top: 0;
        margin-bottom: 0.75rem;
        font-weight: 600;
    }

    .alert p:last-child {
        margin-bottom: 0;
    }

.alert-success {
    background-color: #d1fae5;
    border-color: var(--success);
    color: #065f46;
}

.alert-info {
    background-color: #dbeafe;
    border-color: var(--info);
    color: #1e40af;
}

.alert-warning {
    background-color: #fed7aa;
    border-color: var(--warning);
    color: #92400e;
}

.alert-danger {
    background-color: #fee2e2;
    border-color: var(--danger);
    color: #991b1b;
}

/* ========================================
   VALIDATION MESSAGES
   ======================================== */
.text-danger {
    color: var(--danger) !important;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
    font-weight: 500;
}

.validation-summary-errors {
    background-color: #fee2e2;
    border: 2px solid var(--danger);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
}

    .validation-summary-errors ul {
        margin: 0;
        padding-left: 1.5rem;
        color: #991b1b;
    }

.field-validation-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    margin-top: 4rem;
    padding: 2rem 0;
    background-color: white;
    border-top: 2px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
}

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

        .footer a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

/* ========================================
   UTILITY CLASSES
   ======================================== */
.text-center {
    text-align: center;
}

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

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

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mb-5 {
    margin-bottom: 3rem;
}

.pt-3 {
    padding-top: 1.5rem;
}

.pb-3 {
    padding-bottom: 1.5rem;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    .hero-section {
        padding: 3rem 1.5rem;
    }

        .hero-section h1 {
            font-size: 2rem;
        }

        .hero-section .lead {
            font-size: 1rem;
        }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    h1 {
        font-size: 2rem;
    }

    .table-responsive {
        font-size: 0.875rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .btn-group {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

        .btn-group .btn {
            flex: 1;
            min-width: 120px;
            margin-bottom: 0.5rem;
        }

    .form-group .row .col-md-6,
    .form-group .row .col-md-4 {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }

    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .btn-group {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

        .btn-group .btn {
            width: 100%;
            margin-right: 0;
        }

    .card-header,
    .card-body {
        padding: 1rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .navbar,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background: white;
    }

    .card,
    .table-responsive {
        box-shadow: none;
        border: 1px solid #000;
    }
}