/* --- Base Styling & Variables --- */
:root {
    --primary-blue: #0A369D;
    --light-blue: #4472CA;
    --ice-blue: #EBF1FA;
    --dark-text: #1C2541;
    --pure-white: #FFFFFF;
    --gray-bg: #F8F9FA;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

body {
    color: var(--dark-text);
    background-color: var(--pure-white);
    line-height: 1.6;
}

.container {
    width: 85%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 0;
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.title-line {
    width: 60px;
    height: 4px;
    background-color: var(--light-blue);
    border: none;
    margin: 0 auto 40px auto;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--light-blue);
}

/* --- Header & Nav --- */
header {
    background-color: var(--pure-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo span {
    color: var(--light-blue);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--dark-text);
    font-weight: 500;
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--primary-blue);
}

/* --- Hero Section --- */
.hero-section {
    background: linear-gradient(135deg, rgba(10,54,157,0.9) 0%, rgba(68,114,202,0.8) 100%), 
                url('https://images.unsplash.com/photo-1522071820081-009f0129c71c?auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    height: 80vh;
    display: flex;
    align-items: center;
    color: var(--pure-white);
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 30px auto;
}

/* --- About Us --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-text h3 {
    color: var(--light-blue);
    margin-bottom: 15px;
}

.about-text p {
    margin-bottom: 15px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-box {
    background-color: var(--ice-blue);
    padding: 30px 15px;
    border-radius: 8px;
    text-align: center;
    border-bottom: 4px solid var(--primary-blue);
}

.stat-box h3 {
    font-size: 2rem;
    color: var(--primary-blue);
}

/* --- Courses --- */
.courses-section {
    background-color: var(--gray-bg);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.course-card {
    background-color: var(--pure-white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-5px);
}

.course-card h3 {
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.course-card .price {
    display: block;
    margin-top: 20px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-blue);
}

/* --- Quiz Application --- */
.quiz-container {
    background-color: var(--pure-white);
    border: 2px solid var(--ice-blue);
    border-radius: 10px;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.btn-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 25px 0;
}

.quiz-container .btn-choice {
    background-color: var(--ice-blue);
    color: var(--dark-text);
    padding: 12px;
    border-radius: 5px;
    border: 1px solid transparent;
    text-align: left;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.quiz-container .btn-choice:hover {
    background-color: #d2e0f7;
}

.correct {
    background-color: #2ec4b6 !important;
    color: white !important;
}

.wrong {
    background-color: #e63946 !important;
    color: white !important;
}

#next-btn {
    background-color: var(--primary-blue);
    color: white;
}

.hidden {
    display: none;
}

/* --- Testimonials --- */
.testimonials-section {
    background-color: var(--ice-blue);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.testimonial-card {
    background-color: var(--pure-white);
    padding: 40px;
    border-radius: 8px;
    position: relative;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-card h4 {
    color: var(--primary-blue);
}

/* --- Contact Form --- */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
    outline: none;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-blue);
}

/* --- Footer --- */
footer {
    background-color: var(--dark-text);
    color: var(--pure-white);
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}

/* --- Floating Sticky Social Media Widgets --- */
.social-sticky {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 2000;
}

.social-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    text-decoration: none;
    transition: var(--transition);
}

.social-btn:hover {
    transform: scale(1.1) translateY(-3px);
}

.whatsapp { background-color: #25D366; }
.instagram { background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%); }
.facebook { background-color: #1877F2; }

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .logo-nav, .about-grid, .testimonial-grid {
        flex-direction: column;
        grid-template-columns: 1fr;
        text-align: center;
    }
    nav ul { margin-top: 20px; }
    .about-stats { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 2.2rem; }
}