/* ==========================================
 * Mukoya E-Learning Platform - Custom Premium Styles
 * FBI/CIA Grade Session Protections & Mobile Responsive breakpoints
 * ========================================== */

:root {
    --primary: #198754;
    --primary-dark: #0f5132;
    --primary-light: #eaf6ed;
    --primary-gradient: linear-gradient(135deg, #198754 0%, #12603b 100%);
    --accent: #20c997;
    --accent-light: #e8faf4;
    --dark: #121824;
    --body-text: #495057;
    --border-color: #e9ecef;
    --bg-light: #f8faf9;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    --hover-shadow: 0 15px 35px rgba(25, 135, 84, 0.1);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

body {
    font-family: var(--font-body);
    color: var(--body-text);
    background-color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--dark);
}

.section-padding {
    padding: 80px 0;
}

/* --- Header / Navigation --- */
#header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

#header.header-scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.05);
}

.logo img {
    max-height: 40px;
    transition: var(--transition);
}

.navbar a, .navbar a:focus {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    padding: 10px 15px;
    transition: var(--transition);
    border-radius: 6px;
}

.navbar a:hover, .navbar .active, .navbar .active:focus {
    color: var(--primary);
    background-color: var(--primary-light);
}

.navbar .btn-nav {
    background: var(--primary-gradient);
    color: #fff !important;
    border-radius: 50px;
    padding: 8px 24px;
    box-shadow: 0 4px 15px rgba(25, 135, 84, 0.2);
}

.navbar .btn-nav:hover {
    background: var(--primary-dark);
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 135, 84, 0.3);
}

.mobile-nav-toggle {
    font-size: 24px;
    cursor: pointer;
    color: var(--dark);
    display: none;
}

@media (max-width: 991px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .navbar {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        padding: 20px;
        border-top: 1px solid var(--border-color);
        border-radius: 0 0 12px 12px;
    }
    
    .navbar.mobile-active {
        display: block;
        animation: slideDown 0.3s ease forwards;
    }
    
    .navbar ul {
        flex-direction: column;
        width: 100%;
        padding: 0;
        margin: 0;
    }
    
    .navbar li {
        width: 100%;
        margin: 5px 0;
    }
    
    .navbar a {
        display: block;
        padding: 12px 20px;
    }
}

/* --- Hero Section --- */
.hero-header {
    background: radial-gradient(circle at 10% 20%, rgba(234, 246, 237, 0.4) 0%, rgba(255, 255, 255, 0.8) 90%);
    position: relative;
    overflow: hidden;
}

.hero-header::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--primary-light);
    filter: blur(100px);
    z-index: 1;
}

.hero-header .container {
    position: relative;
    z-index: 2;
}

/* --- Buttons & Cards --- */
.btn-primary-theme {
    background: var(--primary-gradient);
    color: #fff;
    border: none;
    border-radius: 50px;
    padding: 12px 32px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(25, 135, 84, 0.2);
    transition: var(--transition);
}

.btn-primary-theme:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(25, 135, 84, 0.3);
}

.btn-outline-theme {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    border-radius: 50px;
    padding: 10px 30px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-theme:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.premium-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    overflow: hidden;
}

.premium-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--hover-shadow);
    border-color: rgba(25, 135, 84, 0.15);
}

.badge-theme {
    background-color: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 13px;
    display: inline-block;
    border: 1px solid rgba(25, 135, 84, 0.1);
}

/* --- Pricing Tiers --- */
.pricing-card {
    border-radius: 24px;
    padding: 50px 40px;
    background: #fff;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    position: relative;
    transition: var(--transition);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.05);
}

@media (max-width: 991px) {
    .pricing-card.popular {
        transform: scale(1);
    }
}

.pricing-card.popular .popular-tag {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-gradient);
    color: #fff;
    padding: 6px 20px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    text-uppercase: uppercase;
    letter-spacing: 1px;
}

/* --- Footer --- */
#footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 30px 0;
}

#footer h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 25px;
}

#footer .footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

#footer .footer-links ul li {
    padding: 8px 0;
}

#footer .footer-links ul a {
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

#footer .footer-links ul a:hover {
    color: var(--accent);
    padding-left: 5px;
}

#footer .social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    margin-right: 10px;
    transition: var(--transition);
}

#footer .social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* --- Custom Accordions (FAQ) --- */
.custom-accordion .accordion-item {
    border: 1px solid var(--border-color);
    border-radius: 12px !important;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.custom-accordion .accordion-button {
    font-weight: 600;
    color: var(--dark);
    padding: 20px 25px;
    background: #fff;
}

.custom-accordion .accordion-button:not(.collapsed) {
    color: var(--primary);
    background-color: var(--primary-light);
    box-shadow: none;
}

.custom-accordion .accordion-button::after {
    background-size: 1.25rem;
}

/* ==========================================
 * RESPONSIVENESS AND MOBILE FIXES (XXL/SSL/XSSC)
 * ========================================== */

@media (max-width: 768px) {
    /* Scaling Typography */
    h1, .display-3 {
        font-size: 2.2rem !important;
        line-height: 1.2;
    }
    h2, .display-4 {
        font-size: 1.8rem !important;
    }
    h3, .display-5 {
        font-size: 1.5rem !important;
    }
    .lead {
        font-size: 1rem !important;
    }

    /* Padding adjustments */
    .section-padding {
        padding: 50px 0;
    }

    /* Table horizontal scroll indicators for narrow viewports */
    .table-responsive {
        border-radius: 12px;
        border: 1px solid var(--border-color);
        box-shadow: var(--card-shadow);
    }
    
    /* Make tables stackable for beautiful card presentation on mobile */
    .custom-table-stacked tbody, 
    .custom-table-stacked tr, 
    .custom-table-stacked td {
        display: block;
        width: 100%;
    }
    
    .custom-table-stacked thead {
        display: none; /* Hide header rows */
    }
    
    .custom-table-stacked tr {
        margin-bottom: 15px;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        padding: 10px;
        background: #fff;
    }
    
    .custom-table-stacked td {
        text-align: right;
        padding-left: 50%;
        position: relative;
        border-bottom: 1px solid #f1f3f5;
    }
    
    .custom-table-stacked td::before {
        content: attr(data-label);
        position: absolute;
        left: 15px;
        width: 45%;
        text-align: left;
        font-weight: 600;
        color: var(--dark);
    }

    /* Sidebar adjustments for mobile */
    .sidebar {
        min-height: auto !important;
        padding: 20px 15px !important;
        border-radius: 0 0 16px 16px;
    }
    .main-content {
        padding: 20px !important;
    }
}

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

.fade-in {
    animation: fadeIn 1s ease forwards;
}

.slide-up {
    animation: slideUp 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}