/**
 * Bluewater Bible College & Institute
 * Portal Stylesheet
 *
 * Blue gradient theme - Professional, Mobile-first
 *
 * @package BBC_Portal
 * @version 1.0
 */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */
:root {
    /* Primary Colors - Caribbean Blue Theme */
    --color-primary: #0066b3;
    --color-primary-dark: #004d8a;
    --color-primary-light: #3399cc;

    /* Secondary Colors */
    --color-secondary: #17a2b8;
    --color-secondary-dark: #117a8b;

    /* Accent Colors */
    --color-accent: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #17a2b8;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    --color-black: #000000;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0066b3 0%, #00a0dc 50%, #3399cc 100%);
    --gradient-header: linear-gradient(135deg, #004d8a 0%, #0066b3 100%);
    --gradient-card: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-xxxl: 2rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Borders */
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --border-width: 1px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    --shadow-card: 0 4px 20px rgba(0, 102, 179, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Container Widths */
    --container-sm: 540px;
    --container-md: 720px;
    --container-lg: 960px;
    --container-xl: 1140px;
}

/* ============================================================================
   BASE RESET & TYPOGRAPHY
   ============================================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--color-gray-100);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-xxxl); }
h2 { font-size: var(--font-size-xxl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
}

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

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

img {
    max-width: 100%;
    height: auto;
}

/* ============================================================================
   LAYOUT
   ============================================================================ */
.main-content {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-md);
}

.container {
    width: 100%;
    max-width: var(--container-lg);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: var(--container-sm);
}

.container-md {
    max-width: var(--container-md);
}

/* ============================================================================
   NAVIGATION
   ============================================================================ */
.main-nav {
    background: var(--gradient-header);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.nav-brand a {
    display: flex;
    align-items: center;
    color: var(--color-white);
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-decoration: none;
}

.brand-icon {
    margin-right: var(--spacing-sm);
    font-size: 1.5em;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-white);
    border-radius: 3px;
    transition: var(--transition-base);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.15);
    text-decoration: none;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-greeting {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Navigation Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.dropdown-arrow {
    font-size: 0.7em;
    transition: transform var(--transition-fast);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    list-style: none;
    padding: var(--spacing-sm) 0;
    z-index: 1001;
}

.dropdown-menu li a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-gray-700);
    white-space: nowrap;
}

.dropdown-menu li a:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding-top: var(--spacing-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-md);
    }

    .nav-user {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        padding-top: var(--spacing-md);
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }

    .user-greeting {
        text-align: center;
        padding: var(--spacing-sm) 0;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

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

    /* Mobile dropdown */
    .dropdown-menu {
        position: static;
        box-shadow: none;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 0;
        margin-top: var(--spacing-sm);
    }

    .dropdown-menu li a {
        color: rgba(255, 255, 255, 0.9);
        padding-left: var(--spacing-xl);
    }

    .dropdown-menu li a:hover {
        background: rgba(255, 255, 255, 0.15);
        color: var(--color-white);
    }

    .nav-dropdown .dropdown-menu {
        display: none;
    }

    .nav-dropdown.active .dropdown-menu {
        display: block;
    }
}

/* ============================================================================
   LOGIN PAGE STYLES
   ============================================================================ */
.login-page {
    background: var(--gradient-primary);
    min-height: 100vh;
}

.login-page .main-content {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.login-container {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: var(--spacing-xxl);
    animation: slideUp 0.5s ease;
}

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

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.login-logo {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    font-size: 2.5rem;
    color: var(--color-white);
    box-shadow: var(--shadow-card);
}

.login-header h1 {
    font-size: var(--font-size-xl);
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.login-header p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin: 0;
}

.login-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.login-footer a {
    font-size: var(--font-size-sm);
}

/* ============================================================================
   FORMS
   ============================================================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-label .required {
    color: var(--color-danger);
}

.form-control {
    display: block;
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--color-gray-800);
    background: var(--color-white);
    border: var(--border-width) solid var(--color-gray-300);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.15);
}

.form-control:disabled {
    background: var(--color-gray-100);
    cursor: not-allowed;
}

.form-control.error {
    border-color: var(--color-danger);
}

.form-control.error:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
}

.form-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-top: var(--spacing-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-danger);
    margin-top: var(--spacing-xs);
}

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

/* Password Strength Indicator */
.password-strength {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    display: inline-block;
}

.password-strength.weak {
    background: #fee2e2;
    color: var(--color-danger);
}

.password-strength.medium {
    background: #fef3c7;
    color: #d97706;
}

.password-strength.strong {
    background: #d1fae5;
    color: var(--color-accent);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    text-align: center;
    text-decoration: none;
    border: var(--border-width) solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: var(--spacing-sm);
}

.btn:hover {
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-gray-600);
    color: var(--color-white);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-gray-700);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border: var(--border-width) solid var(--color-white);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-white);
    color: var(--color-primary);
}

.btn-link {
    background: transparent;
    color: var(--color-primary);
    padding: 0;
    border: none;
}

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

.btn-block {
    display: flex;
    width: 100%;
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xxl);
    font-size: var(--font-size-lg);
}

/* ============================================================================
   ALERTS
   ============================================================================ */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    transition: opacity var(--transition-base);
}

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

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

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-color: var(--color-warning);
}

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

/* ============================================================================
   CARDS
   ============================================================================ */
.card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.card-header h2,
.card-header h3 {
    margin-bottom: 0;
}

.card-body {
    /* Default styling */
}

.card-footer {
    padding-top: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

/* ============================================================================
   DASHBOARD STYLES
   ============================================================================ */
.dashboard-header {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: var(--spacing-xxl);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.dashboard-header h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.dashboard-header p {
    opacity: 0.9;
    margin: 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.dashboard-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-xl);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.dashboard-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.dashboard-card p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

.card-icon {
    font-size: 1.5em;
}

/* ============================================================================
   PAGE SPECIFIC STYLES
   ============================================================================ */
.page-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.page-header h1 {
    color: var(--color-primary-dark);
}

.page-header p {
    color: var(--color-gray-600);
}

.form-page {
    max-width: 600px;
    margin: 0 auto;
}

.success-page {
    text-align: center;
    padding: var(--spacing-xxl);
}

.success-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.site-footer {
    background: var(--color-gray-800);
    color: var(--color-gray-400);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    margin-top: auto;
}

.footer-container {
    max-width: var(--container-lg);
    margin: 0 auto;
}

.site-footer p {
    margin: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.footer-address {
    opacity: 0.8;
}

/* ============================================================================
   UTILITIES
   ============================================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-muted { color: var(--color-gray-600); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-accent); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

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

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }

/* ============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================ */
@media (max-width: 576px) {
    :root {
        --font-size-base: 15px;
    }

    .login-container {
        padding: var(--spacing-xl);
        margin: var(--spacing-md);
    }

    .dashboard-header {
        padding: var(--spacing-xl);
    }

    .dashboard-header h1 {
        font-size: var(--font-size-xxl);
    }

    .card {
        padding: var(--spacing-lg);
    }
}

/* ============================================================================
   TABLES
   ============================================================================ */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.table th {
    background: var(--color-gray-100);
    font-weight: 600;
    color: var(--color-gray-700);
    white-space: nowrap;
}

.table tbody tr:hover {
    background: var(--color-gray-50, #f9fafb);
}

.table td small {
    display: block;
}

/* ============================================================================
   BADGES
   ============================================================================ */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
}

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

.badge-secondary {
    background: var(--color-gray-500);
    color: var(--color-white);
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* ============================================================================
   STATS GRID
   ============================================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.stat-highlight {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

/* ============================================================================
   FORM ENHANCEMENTS
   ============================================================================ */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: normal;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* ============================================================================
   DETAIL GRID (View Pages)
   ============================================================================ */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.detail-item {
    padding: var(--spacing-sm) 0;
}

.detail-item label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

.detail-item span {
    font-weight: 500;
}

/* ============================================================================
   PAGE HEADER ENHANCEMENTS
   ============================================================================ */
.page-header.d-flex {
    text-align: left;
}

.page-header.d-flex > div:first-child p {
    margin-bottom: 0;
}

.page-header .btn + .btn {
    margin-left: var(--spacing-sm);
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */
@media print {
    .main-nav,
    .btn,
    .site-footer {
        display: none;
    }

    body {
        background: white;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--color-gray-300);
    }
}