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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --text-color: #333;
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --footer-bg: #1a1a2e;
    --border-color: #e0e0e0;
}

[data-theme="dark"] {
    --text-color: #e0e0e0;
    --bg-color: #1a1a2e;
    --card-bg: #2d2d44;
    --footer-bg: #0f0f1e;
    --border-color: #3d3d5c;
}

body {
    font-family: 'Poppins', sans-serif;
    overflow-x: hidden;
    color: var(--text-color);
    background: var(--bg-color);
    transition: all 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
    z-index: 10000;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(180deg);
}

/* Navbar */
.navbar {
    padding: 20px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 28px;
    font-weight: 700;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-nav .nav-link {
    color: #fff !important;
    font-weight: 500;
    margin: 0 15px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link.active {
    border-bottom: 2px solid #fff;
}

.btn-enroll {
    background: #fff;
    color: var(--primary-color);
    padding: 10px 30px;
    border-radius: 50px;
    font-weight: 600;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 120px 0 80px;
    color: #fff;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
}

.btn-primary-custom {
    background: #fff;
    color: var(--primary-color);
    padding: 15px 40px;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid #fff;
}

.btn-outline-custom {
    background: transparent;
    color: #fff;
    padding: 15px 40px;
    border-radius: 50px;
    border: 2px solid #fff;
}

/* Stats Section */
.stats-section {
    background: var(--card-bg);
    padding: 60px 0;
}

.stat-card {
    text-align: center;
    padding: 30px;
    transition: all 0.3s ease;
}

.stat-card i {
    font-size: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card h3 {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
}

/* Students Section */
.students-section {
    padding: 80px 0;
    background: var(--bg-color);
}

.student-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.student-card:hover {
    transform: translateY(-10px);
}

.student-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 20px;
    border: 5px solid var(--primary-color);
}

.student-achievement {
    margin-top: 15px;
    padding: 8px 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 20px;
    display: inline-block;
    font-size: 14px;
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-color);
}

/* Course Cards */
.quick-courses, .courses-section {
    padding: 80px 0;
    background: var(--bg-color);
}

.course-card, .course-card-detailed {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    height: 100%;
}

.course-card:hover, .course-card-detailed:hover {
    transform: translateY(-10px);
}

.course-icon {
    padding: 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.course-icon i {
    font-size: 80px;
    color: #fff;
}

.course-content {
    padding: 30px;
}

.course-badge {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 15px;
}

.course-features {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.course-features li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.course-price {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 20px 0;
}

.old-price {
    text-decoration: line-through;
    color: #999;
}

.new-price {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.btn-course {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 150px 0 80px;
    text-align: center;
    color: white;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
}

/* Internship Page */
.internship-details {
    padding: 80px 0;
}

.internship-benefits {
    list-style: none;
    padding: 0;
}

.internship-benefits li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 16px;
}

.internship-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-box {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.stat-box h3 {
    font-size: 36px;
    color: var(--primary-color);
    font-weight: 700;
}

.internship-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.internship-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.internship-icon i {
    font-size: 40px;
    color: white;
}

.btn-internship {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
}

.process-step {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

/* Contact Page */
.contact-page {
    padding: 80px 0;
}

.contact-info-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
    height: 100%;
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.contact-icon i {
    font-size: 35px;
    color: white;
}

.contact-form-box {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
}

.form-control {
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
}

.map-box {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
}

.social-links-large {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    border-radius: 10px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.social-btn.facebook { background: #3b5998; }
.social-btn.twitter { background: #1da1f2; }
.social-btn.linkedin { background: #0077b5; }
.social-btn.instagram { background: #e4405f; }
.social-btn.youtube { background: #ff0000; }

.faq-section {
    padding: 80px 0;
    background: var(--bg-color);
}

.faq-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

/* Auth Pages */
.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
}

.auth-box {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px;
    background: var(--bg-color);
}

.auth-form {
    width: 100%;
    max-width: 500px;
}

.auth-logo {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

.auth-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-color);
}

.input-with-icon input {
    padding-left: 45px;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #999;
}

.btn-auth {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
}

.auth-divider {
    text-align: center;
    margin: 25px 0;
    position: relative;
}

.auth-divider span {
    background: var(--bg-color);
    padding: 0 15px;
    color: #999;
}

.btn-social {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.auth-side {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px;
    color: white;
}

.auth-features {
    margin-top: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    font-size: 16px;
}

.feature-item i {
    font-size: 24px;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

/* Footer */
.footer {
    background: var(--footer-bg);
    color: #fff;
    padding: 60px 0 20px;
}

.footer h4 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 25px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #bbb;
    text-decoration: none;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 40px;
    padding-top: 30px;
    text-align: center;
}

.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
}

.btn-submit {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    padding: 12px 30px;
    border-radius: 50px;
    border: none;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 991px) {
    .hero-content h1 { font-size: 42px; }
    .auth-container { grid-template-columns: 1fr; }
    .auth-side { display: none; }
}

@media (max-width: 767px) {
    .hero-content h1 { font-size: 32px; }
    .section-title h2 { font-size: 32px; }
    .page-header h1 { font-size: 36px; }
}