/* ============================================
   Class Budiies Platform - Consolidated Stylesheet
   Green Theme | Bootstrap 5 Overrides
   ============================================ */

/* ---- Color Palette (single source of truth) ---- */
:root {
    /* Primary brand */
    --primary-color: #006699;
    --primary-dark: #00486C;
    --primary-light: #0192DA;

    /* Accent palette (stat cards, icons, charts) */
    --blue-accent: #4e73df;
    --green-accent: #1cc88a;
    --teal-accent: #36b9cc;
    --yellow-accent: #f6c23e;
    --red-accent: #e74a3b;

    /* Semantic aliases */
    --success-color: var(--green-accent);
    --info-color: var(--teal-accent);
    --warning-color: var(--yellow-accent);
    --danger-color: var(--red-accent);
    --secondary-color: #858796;

    /* Neutrals */
    --gray-600: #858796;
    --gray-800: #5a5c69;
    --light-bg: #f8f9fc;
    --border-color: #e3e6f0;

    /* Bootstrap overrides */
    --bs-primary: #006699;
    --bs-primary-rgb: 25, 135, 84;
    --bs-primary-dark: #00486C;
    --bs-primary-light: #0192DA;
}

/* ---- Bootstrap Primary Overrides ---- */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

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

.text-primary {
    color: var(--primary-color) !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}

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

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ---- Base Layout ---- */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* ---- Navbar ---- */
.navbar-brand {
    font-weight: bold;
}

.navbar-dark {
    background-color: var(--primary-color) !important;
}

.navbar-dark .nav-link.active {
    font-weight: 600;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 0.375rem;
    border-bottom: 2px solid #fff;
}

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--primary-color);
    color: white;
}

/* ---- Cards ---- */
.card {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

.card-header {
    background-color: #f8f9fa;
    font-weight: 600;
}

.card.border-primary {
    border-width: 2px;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

/* Dashboard border-left cards */
.border-left-primary {
    border-left: 4px solid var(--blue-accent) !important;
}

.border-left-success {
    border-left: 4px solid var(--success-color) !important;
}

.border-left-info {
    border-left: 4px solid var(--info-color) !important;
}

.border-left-warning {
    border-left: 4px solid var(--warning-color) !important;
}

.border-left-danger {
    border-left: 4px solid var(--danger-color) !important;
}

/* ---- Stat Card Utilities ---- */
.text-xs {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.text-gray-800 {
    color: var(--gray-800) !important;
}

/* Stat card icon sizes */
.icon-stat {
    font-size: 2rem;
}

.icon-stat-lg {
    font-size: 4rem;
}

/* Icon color utilities */
.icon-primary {
    color: var(--blue-accent);
}

.icon-success {
    color: var(--green-accent);
}

.icon-info {
    color: var(--teal-accent);
}

.icon-warning {
    color: var(--yellow-accent);
}

.icon-danger {
    color: var(--red-accent);
}

/* Card watermark icon positioning (large faded background icon) */
.card-watermark {
    position: absolute;
    right: 20px;
    top: 20px;
    opacity: 0.2;
}

/* Stats Card Icons Animation */
.card .card-watermark i {
    transition: transform 0.3s ease;
}

.card:hover .card-watermark i {
    transform: scale(1.1);
}

/* Dashboard Statistics */
.card-body .h5 {
    font-size: 1.75rem;
    font-weight: 700;
}

/* ---- Buttons ---- */
.btn {
    border-radius: 0.25rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
}

/* ---- Tables ---- */
.table {
    margin-bottom: 0;
}

.table-hover tbody tr:hover {
    background-color: var(--light-bg);
    cursor: pointer;
}

.table thead th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color);
}

/* ---- Badges ---- */
.badge {
    font-size: 0.875em;
    padding: 0.35em 0.65em;
    font-weight: 600;
}

/* ---- Alerts ---- */
.alert {
    border-radius: 0.5rem;
    border: none;
    border-left: 4px solid;
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-success {
    border-left-color: var(--success-color);
}

.alert-warning {
    border-left-color: var(--warning-color);
}

.alert-info {
    border-left-color: var(--info-color);
}

/* ---- Forms ---- */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(25, 135, 84, 0.25);
}

/* OTP input field */
.otp-input-field {
    font-size: 1.5rem;
    letter-spacing: 0.5rem;
    text-align: center;
}

/* ---- Links ---- */
a {
    color: var(--primary-color);
}

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

/* ---- Icon Styling ---- */
.bi {
    vertical-align: -0.125em;
}

/* ---- Login page specific ---- */
.min-vh-100 {
    min-height: 100vh;
}

.card.shadow {
    border-top: 4px solid var(--primary-color);
}

/* Assessment submission styles */
.border.p-3 {
    background-color: #f8f9fa;
    border-radius: 0.25rem;
}

/* Statistics cards */
.card.text-center .card-body h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* ---- Auth Pages (Login / Register) ---- */
.auth-bg {
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    overflow-x: hidden;
    background-position: center;
    min-height: 100vh;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 0;
}

.auth-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    opacity: 0.3;
}

.login-bg {
    background: linear-gradient(135deg, rgba(0,102,153,0.92) 0%, rgba(0,72,108,0.88) 100%),
    url('../img/hero-image.jpg') center/cover no-repeat;
}

.login-bg::before {
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
}

.register-bg {
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.85) 0%, rgba(245, 87, 108, 0.85) 100%),
                url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center center;
}

.register-bg::before {
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.1)" d="M0,160L48,144C96,128,192,96,288,96C384,96,480,128,576,138.7C672,149,768,139,864,122.7C960,107,1056,85,1152,90.7C1248,96,1344,128,1392,144L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
}

.auth-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 20px 0;
}

.register-bg .auth-container {
    padding: 40px 0;
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Auth page hero icons */
.auth-hero-icon {
    font-size: 3rem;
}

.login-hero-icon {
    color: #667eea;
}

.register-hero-icon {
    color: #f5576c;
}

/* ---- Loading States ---- */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ---- Custom Scrollbar ---- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .container,
    .container-fluid {
        padding: 0.5rem;
    }

    .card-body {
        padding: 1rem;
    }

    .table-responsive {
        font-size: 0.875rem;
    }
    .hero-section {
        padding-top:80px;
    }
    .logo-mobile {
        width: 300px;
        height: auto;
    }
    .nav-item {
        background: var(--primary-dark);
        padding: 10px;
        color: white;
    }
    
}