:root {
    --primary: #111827;
    --primary-light: #1f2937;
    --accent: #F58220;
    --accent-hover: #e06d10;
    --text-main: #374151;
    --text-light: #6B7280;
    --bg-light: #F9FAFB;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    padding: 15px 0;
    box-shadow: var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 50px;
    display: block;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--white);
    font-size: 0.95rem;
}

.navbar.scrolled .nav-links a {
    color: var(--primary);
}

.nav-links a:hover {
    color: var(--accent);
}

.navbar .btn-sm {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(17, 24, 39, 0.7), rgba(17, 24, 39, 0.7)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: #E5E7EB;
    margin-bottom: 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Certification Section */
.certification {
    background: var(--bg-light);
    padding: 60px 0;
    text-align: center;
}

.certification h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-light);
    margin-bottom: 30px;
}

.cert-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.cert-logos img {
    height: 70px;
    filter: grayscale(1);
    opacity: 0.6;
    transition: var(--transition);
}

.cert-logos img:hover {
    filter: grayscale(0);
    opacity: 1;
}

/* Program Overview */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.overview-card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #F3F4F6;
}

.overview-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

.overview-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    display: block;
}

.overview-card h3 {
    margin-bottom: 16px;
}

/* Curriculum Section */
.curriculum {
    background: var(--primary);
    color: var(--white);
}

.curriculum h2 {
    color: var(--white);
    text-align: center;
    margin-bottom: 60px;
}

.curr-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.curr-item {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
}

.curr-item::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 40px;
    bottom: -40px;
    width: 2px;
    background: rgba(245, 130, 32, 0.3);
}

.curr-item:last-child::before {
    display: none;
}

.curr-number {
    width: 42px;
    height: 42px;
    background: var(--accent);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    z-index: 1;
}

.curr-content h3 {
    color: var(--white);
    margin-bottom: 8px;
}

.curr-content p {
    color: #9CA3AF;
}

/* Faculty Section */
.faculty-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.faculty-card {
    text-align: center;
}

.faculty-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 24px;
    border: 4px solid var(--accent);
    padding: 5px;
}

.faculty-card h3 {
    margin-bottom: 8px;
}

.faculty-card span {
    color: var(--accent);
    font-weight: 600;
    display: block;
    margin-bottom: 16px;
}

/* Testimonials */
.testimonials {
    background: var(--bg-light);
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.test-card {
    background: var(--white);
    padding: 30px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.test-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.test-content {
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 20px;
}

.test-author {
    font-weight: 700;
    color: var(--primary);
}

/* Bank Details Table */
.details-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.details-table td {
    padding: 16px 20px;
    border-bottom: 1px solid #E5E7EB;
}

.details-table td:first-child {
    background: var(--bg-light);
    font-weight: 600;
    width: 30%;
    color: var(--primary);
}

.details-table tr:last-child td {
    border-bottom: none;
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    background-color: #128c7e;
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h3 {
    color: var(--white);
    margin-bottom: 24px;
}

.footer-col p {
    color: #9CA3AF;
    margin-bottom: 16px;
}

.footer-bottom {
    border-top: 1px solid #1f2937;
    padding-top: 30px;
    text-align: center;
    color: #6B7280;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .cert-logos {
        gap: 30px;
    }
    
    .hero-btns {
        flex-direction: column;
    }
}