:root {
    /* Color Scheme - From Thulir Global Logo */
    --primary-maroon: #A52A2A;
    --primary-gold: #D4AF37;
    --dark-brown: #4A1C1C;
    --white: #FFFFFF;

    /* Additional Colors */
    --light-gray: #F8F9FA;
    --medium-gray: #6C757D;
    --dark-gray: #343A40;
    --border-color: #DEE2E6;
    --success: #28A745;
    --danger: #DC3545;
    --warning: #FFC107;
    --info: #17A2B8;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --section-padding: 80px 0;
    --card-padding: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Transitions */
    --transition: all 0.3s ease;
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-brown);
}

h1 {
    font-size: 36px;
}

h2 {
    font-size: 28px;
}

h3 {
    font-size: 22px;
}

h4 {
    font-size: 18px;
}

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

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

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Section */
.section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--dark-brown);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-maroon), var(--primary-gold));
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--dark-brown);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--primary-gold);
    color: var(--dark-brown);
}

.btn-secondary:hover {
    background: #C5A028;
    color: var(--dark-brown);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-maroon);
    color: var(--primary-maroon);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: var(--card-padding);
}

.card-title {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark-brown);
}

.card-text {
    color: var(--medium-gray);
    margin-bottom: 15px;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-brown);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-maroon);
    box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: var(--danger);
    font-size: 14px;
    margin-top: 5px;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

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

.badge-gold {
    background: var(--primary-gold);
    color: var(--dark-brown);
}

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

/* Icons */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--light-gray);
    color: var(--primary-maroon);
    font-size: 24px;
    transition: var(--transition);
}

.icon:hover {
    background: var(--primary-maroon);
    color: var(--white);
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: pulse 2s infinite;
    cursor: pointer;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: var(--white);
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }

    50% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-maroon);
    color: var(--white);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    z-index: 999;
    transition: var(--transition);
}

.back-to-top:hover {
    background: var(--dark-brown);
    transform: translateY(-5px);
}

.back-to-top.show {
    display: flex;
}

/* Responsive Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    padding: 0 15px;
}

.col-12 {
    flex: 0 0 100%;
    max-width: 100%;
}

.col-6 {
    flex: 0 0 50%;
    max-width: 50%;
}

.col-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
}

.col-3 {
    flex: 0 0 25%;
    max-width: 25%;
}

/* Utilities */
.text-center {
    text-align: center;
}

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

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

.mt-1 {
    margin-top: 10px;
}

.mt-2 {
    margin-top: 20px;
}

.mt-3 {
    margin-top: 30px;
}

.mb-1 {
    margin-bottom: 10px;
}

.mb-2 {
    margin-bottom: 20px;
}

.mb-3 {
    margin-bottom: 30px;
}

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 24px;
    }

    h3 {
        font-size: 20px;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 26px;
    }

    .col-6,
    .col-4,
    .col-3 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 28px;
    }

    .back-to-top {
        bottom: 80px;
        right: 20px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .col-4 {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

/* ========================================
   MULTI-LEVEL COURSE MENU (NEW)
   ======================================== */
.mega-dropdown {
    padding: 0;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 1000px;
    left: 50% !important;
    transform: translateX(-50%) translateY(20px);
    transition: all 0.3s ease;
}

.courses-hierarchy {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    background: var(--white);
    max-width: 400px;
}

.course-category {
    position: relative;
    background: rgba(165, 42, 42, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.category-trigger {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    cursor: pointer;
    font-weight: 700;
    color: var(--dark-brown);
    font-family: var(--font-heading);
}

.category-trigger i:first-child {
    font-size: 20px;
    color: var(--primary-maroon);
}

.category-trigger .arrow {
    margin-left: auto;
    font-size: 12px;
    transition: transform 0.3s ease;
}

.category-submenu {
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 10px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 20px;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.course-category:hover .category-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.course-category:hover .category-trigger .arrow {
    transform: rotate(90deg);
}

.submenu-group {
    position: relative;
    margin-bottom: 8px;
}

.group-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark-brown);
}

.group-list {
    position: absolute;
    top: 0;
    left: 100%;
    margin-left: 8px;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 15px;
    min-width: 280px;
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.submenu-group:hover .group-list {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.group-list a {
    display: block;
    padding: 8px 12px;
    color: var(--medium-gray);
    font-size: 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
}

.group-list a:hover {
    background: var(--primary-maroon);
    color: var(--white);
    padding-left: 15px;
}

/* Mobile Adjustments for multi-level */
@media (max-width: 991px) {
    .mega-dropdown {
        min-width: 100%;
        position: static !important;
        transform: none !important;
        box-shadow: none;
        padding: 0;
    }

    .courses-hierarchy {
        display: block;
        padding: 15px;
    }

    .course-category {
        margin-bottom: 10px;
    }

    .category-submenu {
        position: static;
        margin-left: 0;
        min-width: 100%;
        max-height: 0;
        padding: 0;
        opacity: 0;
        visibility: hidden;
        overflow: hidden;
        box-shadow: none;
        border: none;
    }

    .course-category.active .category-submenu {
        max-height: 2000px;
        padding: 10px;
        opacity: 1;
        visibility: visible;
    }

    .group-list {
        position: static;
        margin-left: 0;
        min-width: 100%;
        max-height: 0;
        padding: 0;
        opacity: 0;
        visibility: hidden;
        overflow: hidden;
        box-shadow: none;
        border: none;
        background: var(--light-gray);
    }

    .submenu-group.active .group-list {
        max-height: 1000px;
        padding: 10px;
        opacity: 1;
        visibility: visible;
    }

    .course-category.active .category-trigger .arrow,
    .submenu-group.active .group-trigger .arrow {
        transform: rotate(90deg);
    }
}