/* assets/css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+Sinhala:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #f7f6f0; /* Soft warm eggshell background */
    --card-bg: #ffffff;
    --text-primary: #2b2e2d;
    --text-secondary: #747d79;
    --primary-color: #d85a38; /* Terracotta Clay */
    --primary-hover: #bf4d2e;
    --primary-gradient: linear-gradient(135deg, #e06d4e, #d85a38);
    --secondary-color: #1e4a4b; /* Deep Teal */
    --secondary-hover: #163738;
    --secondary-gradient: linear-gradient(135deg, #2b5f61, #1e4a4b);
    --border-color: rgba(43, 46, 45, 0.08); /* Soft ambient border */
    --border-dark: #2b2e2d;
    --success-color: #3b7a57; /* Moss Green */
    --warning-color: #d17524; /* Amber Ochre */
    --danger-color: #b84040; /* Terracotta Red */
    --font-primary: 'Outfit', 'Noto Sans Sinhala', sans-serif;
    
    /* Modern shadow (very soft, ambient, natural) */
    --shadow-sm: 0 2px 8px rgba(43, 46, 45, 0.03);
    --shadow-md: 0 8px 24px rgba(43, 46, 45, 0.04);
    --shadow-lg: 0 16px 36px rgba(43, 46, 45, 0.06);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-primary);
    margin: 0;
    padding: 0;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Premium card design with soft shadows and borders */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    position: relative;
    box-shadow: var(--shadow-sm) !important;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(216, 90, 56, 0.25);
    box-shadow: var(--shadow-md) !important;
}

.card-light {
    background-color: #faf9f6;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 20px;
}

/* Modernized metric widgets for Admin Dashboard */
.metric-card {
    border-left: 4px solid var(--primary-color) !important;
}
.metric-card.pending {
    border-left: 4px solid var(--warning-color) !important;
    background-color: #fffbf5;
}
.metric-card.courses {
    border-left: 4px solid var(--secondary-color) !important;
    background-color: #f5fbfb;
}
.metric-card.slips {
    border-left: 4px solid var(--danger-color) !important;
    background-color: #fffafb;
}

/* Buttons - Terracotta & Teal gradients */
.btn {
    font-family: var(--font-primary);
    font-weight: 500;
    border-radius: 10px;
    padding: 10px 22px;
    font-size: 14px;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: var(--shadow-sm);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #ffffff;
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--primary-gradient);
    filter: brightness(1.05);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(216, 90, 56, 0.2);
}

.btn-secondary {
    background: var(--secondary-gradient);
    color: #ffffff;
}

.btn-secondary:hover, .btn-secondary:focus {
    background: var(--secondary-gradient);
    filter: brightness(1.05);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 74, 75, 0.2);
}

.btn-success {
    background: linear-gradient(135deg, #43a047, #2e7d32);
    color: #ffffff;
    border: 1px solid transparent;
}

.btn-success:hover, .btn-success:focus {
    background: linear-gradient(135deg, #43a047, #2e7d32);
    filter: brightness(1.05);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.2);
}

.btn-outline {
    background-color: #ffffff;
    border: 1px solid var(--border-dark);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--border-dark);
    color: #ffffff;
    transform: translateY(-1px);
}

/* Bootstrap Overrides for Dynamic Theme Colors */
.text-primary {
    color: var(--primary-color) !important;
}
.bg-primary {
    background-color: var(--primary-color) !important;
}
.nav-pills .nav-link.active, 
.nav-pills .show > .nav-link {
    background-color: var(--primary-color) !important;
    color: #ffffff !important;
}
.nav-pills .nav-link {
    color: var(--text-secondary);
}
.nav-pills .nav-link:hover {
    color: var(--primary-hover);
}

.btn-sm {
    padding: 6px 16px;
    font-size: 13px;
    border-radius: 8px;
}

/* Headings & Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0;
    letter-spacing: -0.02em;
}

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

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

/* Inputs and Forms */
.form-control, .form-select {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 16px;
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: #ffffff;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(216, 90, 56, 0.1) !important;
}

.form-label {
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text-primary);
}

/* Badges styling */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 12px;
    border: 1px solid transparent;
}

.badge-pending {
    background-color: #fef5ea;
    color: var(--warning-color);
    border-color: rgba(209, 117, 36, 0.15);
}

.badge-verified, .badge-approved {
    background-color: #eef7f2;
    color: var(--success-color);
    border-color: rgba(59, 122, 87, 0.15);
}

.badge-rejected, .badge-failed {
    background-color: #fdf3f3;
    color: var(--danger-color);
    border-color: rgba(184, 64, 64, 0.15);
}

.badge-blocked {
    background-color: #f1f3f5;
    color: #495057;
    border-color: rgba(73, 80, 87, 0.15);
}

.badge-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Student Mobile Shell */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-color);
    min-height: 100vh;
    padding-bottom: 85px;
    position: relative;
}

.header-container {
    max-width: 600px !important;
    margin: 0 auto;
    width: 100%;
}

.student-help-btn {
    background-color: #ff0000;
    border-color: #ff0000;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
}

.student-groups-btn {
    background-color: #198754;
    border-color: #198754;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1;
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
}

.student-groups-btn:hover,
.student-groups-btn:focus,
.student-groups-btn:active {
    background-color: #157347 !important;
    border-color: #157347 !important;
    color: #ffffff !important;
}

.student-groups-btn i {
    font-size: 1rem;
}

.student-help-btn:hover,
.student-help-btn:focus,
.student-help-btn:active {
    background-color: #e00000 !important;
    border-color: #e00000 !important;
    color: #ffffff !important;
}

.student-help-btn i {
    font-size: 1rem;
}

@media (max-width: 991.98px) {
    .student-groups-btn,
    .student-help-btn {
        gap: 4px;
        font-size: 0.72rem;
        padding: 0.38rem 0.62rem;
    }

    .student-groups-btn i,
    .student-help-btn i {
        font-size: 0.85rem;
    }

    .navbar-toggler {
        width: 34px;
        height: 32px;
        padding: 0.2rem 0.35rem;
    }

    .navbar-toggler-icon {
        width: 1.15em;
        height: 1.15em;
    }
}

@media (min-width: 769px) {
    .admin-wrapper {
        height: 100vh;
        min-height: 100vh;
        overflow: hidden;
    }

    .admin-sidebar {
        height: 100vh;
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .admin-main {
        height: 100vh;
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .app-container {
        max-width: 960px;
    }
    .header-container {
        max-width: 960px !important;
    }
}

/* Floating Student Header bar */
header.student-header {
    background-color: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 0 0 20px 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

/* Bottom Navigation Bar for Mobile */
.mobile-nav-bar {
    position: fixed;
    bottom: 15px;
    left: 15px;
    right: 15px;
    height: 65px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 30px;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

@media (min-width: 769px) {
    .mobile-nav-bar {
        left: 50%;
        transform: translateX(-50%);
        max-width: 930px;
        bottom: 20px;
    }
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 11px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    width: 20%;
    text-align: center;
    transition: all 0.2s ease;
}

.mobile-nav-item i {
    font-size: 20px;
    margin-bottom: 1px;
    transition: transform 0.2s ease;
}

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

.mobile-nav-item.active {
    color: var(--primary-color);
}

/* Admin Dashboard layout revamps */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    min-width: 260px;
    flex-shrink: 0;
    background-color: #121817; /* Slate Black */
    color: #ffffff;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255,255,255,0.05);
}

.admin-sidebar-header {
    padding: 28px 24px;
    background-color: #0b0f0e;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.admin-sidebar a {
    color: #929d99;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    font-weight: 500;
    font-size: 14px;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.admin-sidebar a i {
    font-size: 16px;
    margin-right: 12px;
}

.admin-sidebar a:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: #ffffff;
}

.admin-sidebar a.active {
    background-color: rgba(216, 90, 56, 0.08);
    color: var(--primary-color);
    font-weight: 600;
    border-left: 4px solid var(--primary-color);
}

.admin-main {
    flex-grow: 1;
    min-width: 0;
    padding: 40px;
    background-color: var(--bg-color);
    overflow-y: auto;
}

@media (max-width: 768px) {
    .admin-wrapper {
        flex-direction: column;
    }
    .admin-sidebar {
        width: 100%;
        min-width: 0;
        flex-shrink: 1;
        display: none;
    }
    .admin-sidebar.show {
        display: flex;
    }
    .admin-main {
        padding: 20px;
    }
}

/* Floating Web Hero Card for Modern Landing page */
.hero-card {
    background: linear-gradient(135deg, #1b4d4f, #112d2e);
    color: #ffffff;
    border-radius: 24px;
    padding: 60px 40px;
    border: none;
    box-shadow: var(--shadow-lg) !important;
    position: relative;
    overflow: hidden;
}

.hero-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(216, 90, 56, 0.15) 0%, rgba(216, 90, 56, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-card h1 {
    color: #ffffff;
}

/* Category Grid squircle icons */
.category-circle-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    background-color: #fff2ef;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 12px;
    transition: all 0.3s ease;
}

.card:hover .category-circle-icon {
    transform: scale(1.1) rotate(5deg);
    background-color: var(--primary-color);
    color: #ffffff;
}

/* Custom Table headers and lines */
.table {
    border-collapse: separate;
    border-spacing: 0 6px;
    background-color: transparent;
}

.table thead th {
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.05em;
    padding: 12px 16px;
}

.table tbody tr {
    background-color: #ffffff;
    box-shadow: var(--shadow-sm);
    border-radius: 10px;
    transition: transform 0.2s ease;
}

.table tbody tr:hover {
    transform: scale(1.005);
}

.table tbody td {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 14px 16px;
}

.table tbody td:first-child {
    border-left: 1px solid var(--border-color);
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

.table tbody td:last-child {
    border-right: 1px solid var(--border-color);
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
}

/* Quiz option items styling */
.quiz-option {
    border: 1px solid var(--border-color) !important;
    background-color: #ffffff;
    box-shadow: var(--shadow-sm);
    border-radius: 12px !important;
    padding: 16px 20px !important;
    transition: all 0.2s ease !important;
}

@media (hover: hover) {
    .quiz-option:hover {
        border-color: var(--primary-color) !important;
        background-color: #fdfaf9 !important;
    }
}

.quiz-option.selected {
    border-color: var(--primary-color) !important;
    background-color: #fdf5f2 !important;
    box-shadow: 0 0 0 2px rgba(216, 90, 56, 0.1) !important;
}

/* Cloudflare Turnstile loading, failure, and recovery states */
.turnstile-security-panel {
    min-height: 112px;
    padding: 12px;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 12px;
    background: #fafafa;
}

.turnstile-security-status {
    min-height: 20px;
}

.turnstile-security-status::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 7px;
    border-radius: 50%;
    background: #6c757d;
}

.turnstile-security-panel[data-state="success"] .turnstile-security-status::before {
    background: #198754;
}

.turnstile-security-panel[data-state="error"] .turnstile-security-status::before {
    background: #dc3545;
}

.turnstile-security-widget {
    width: 100%;
    margin-top: 8px;
}