/* ========================================
   BilimBoost Academy - Custom Styles
   Казахстанская онлайн-платформа курсов
   ======================================== */

/* === ROOT VARIABLES === */
:root {
    /* Казахстанские цвета */
    --primary-green: #00A651;
    --primary-blue: #0088CC;
    --gold-accent: #FFB81C;
    --dark-blue: #003D7A;
    
    /* Дополнительные цвета */
    --text-dark: #1a1a1a;
    --text-gray: #666;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --danger: #dc3545;
    --success: #28a745;
    
    /* Тени */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    
    /* Переходы */
    --transition: all 0.3s ease;
}

/* === GLOBAL STYLES === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

/* === DISCLAIMER BANNER === */
.disclaimer-banner {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    padding: 15px 0;
    border-bottom: 3px solid #bd2130;
    position: relative;
    z-index: 999;
}

.disclaimer-banner .container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.disclaimer-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.disclaimer-text {
    font-size: 13px;
    line-height: 1.5;
    flex: 1;
}

.disclaimer-text strong {
    font-weight: 600;
    text-transform: uppercase;
    display: block;
    margin-bottom: 5px;
}

/* === NAVIGATION === */
.navbar {
    background: white;
    box-shadow: var(--shadow-md);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 998;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand span {
    color: var(--primary-blue);
}

.navbar-nav .nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    position: relative;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-green);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 80%;
}

.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: white;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
    border: none;
    transition: var(--transition);
    display: inline-block;
}

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

/* === HERO SECTION === */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(0, 166, 81, 0.9) 0%, rgba(0, 136, 204, 0.9) 100%),
                url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?w=1600') center/cover;
    color: white;
    padding: 100px 0;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-hero-primary {
    background: white;
    color: var(--primary-green);
    padding: 15px 35px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    border: 2px solid white;
}

.btn-hero-primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-3px);
}

.btn-hero-secondary {
    background: transparent;
    color: white;
    padding: 15px 35px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.1rem;
    border: 2px solid white;
    transition: var(--transition);
}

.btn-hero-secondary:hover {
    background: white;
    color: var(--primary-blue);
    transform: translateY(-3px);
}

/* === FEATURES SECTION === */
.features-section {
    padding: 80px 0;
    background: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-gray);
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* === COURSES SECTION === */
.courses-section {
    padding: 80px 0;
}

.course-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.course-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.course-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-category {
    display: inline-block;
    background: var(--primary-green);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.course-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--text-dark);
}

.course-content p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex: 1;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid #eee;
}

.course-meta span {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.course-meta i {
    margin-right: 5px;
    color: var(--primary-blue);
}

/* === STATISTICS SECTION === */
.stats-section {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: white;
    padding: 60px 0;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* === TESTIMONIALS SECTION === */
.testimonials-section {
    padding: 80px 0;
    background: var(--light-bg);
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    height: 100%;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-info h5 {
    margin-bottom: 0.3rem;
    color: var(--text-dark);
}

.testimonial-info .testimonial-role {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.testimonial-rating {
    color: var(--gold-accent);
    margin-bottom: 1rem;
}

.testimonial-text {
    color: var(--text-gray);
    font-style: italic;
    line-height: 1.7;
}

/* === CTA SECTION === */
.cta-section {
    background: linear-gradient(135deg, rgba(0, 61, 122, 0.95) 0%, rgba(0, 136, 204, 0.95) 100%),
                url('https://images.unsplash.com/photo-1501504905252-473c47e087f8?w=1600') center/cover;
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* === FOOTER === */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--gold-accent);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section ul {
    color: #ccc;
    font-size: 0.9rem;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #ccc;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-green);
    padding-left: 5px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.8rem;
}

.footer-contact i {
    color: var(--primary-green);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #999;
}

/* === COOKIE BANNER === */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 26, 0.98);
    color: white;
    padding: 20px 0;
    z-index: 9999;
    box-shadow: 0 -4px 10px rgba(0,0,0,0.2);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    font-size: 0.95rem;
}

.cookie-text a {
    color: var(--primary-green);
    text-decoration: underline;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.cookie-buttons button {
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-accept:hover {
    background: #008a43;
}

.btn-decline {
    background: #555;
    color: white;
}

.btn-decline:hover {
    background: #666;
}

/* === PAGE HEADER === */
.page-header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
    color: white;
    padding: 80px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* === BREADCRUMB === */
.breadcrumb-custom {
    background: transparent;
    padding: 1rem 0;
}

.breadcrumb-custom a {
    color: var(--primary-blue);
}

.breadcrumb-custom .active {
    color: var(--text-gray);
}

/* === FORMS === */
.form-control {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 12px 15px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 0.2rem rgba(0, 166, 81, 0.15);
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

/* === TEAM SECTION === */
.team-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.team-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.team-info {
    padding: 1.5rem;
}

.team-info h4 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.team-info .team-role {
    color: var(--primary-green);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-info p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* === FAQ === */
.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.5rem;
    background: white;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--light-bg);
}

.faq-question.active {
    color: var(--primary-green);
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer.show {
    padding: 0 1.5rem 1.5rem;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* === BLOG === */
.blog-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.blog-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.blog-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-date {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
}

.blog-content h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.blog-excerpt {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    flex: 1;
}

.blog-link {
    color: var(--primary-blue);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.blog-link:hover {
    color: var(--primary-green);
}

/* === BLOG ARTICLE === */
.blog-article {
    padding: 60px 0;
}

.article-header {
    margin-bottom: 3rem;
}

.article-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 1rem;
    color: var(--text-gray);
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.article-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.article-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 2rem;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-dark);
}

.article-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.article-content p {
    margin-bottom: 1.5rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #eee;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.share-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.share-btn.facebook { background: #3b5998; }
.share-btn.twitter { background: #1da1f2; }
.share-btn.linkedin { background: #0077b5; }
.share-btn.whatsapp { background: #25d366; }

/* === CONTACT === */
.contact-info-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
    height: 100%;
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.contact-info-card h4 {
    margin-bottom: 1rem;
}

.contact-info-card p {
    color: var(--text-gray);
}

/* === RESPONSIVE === */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .disclaimer-banner .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-hero-primary,
    .btn-hero-secondary {
        text-align: center;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* === UTILITIES === */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
}

.mb-60 {
    margin-bottom: 60px;
}

.mt-60 {
    margin-top: 60px;
}

.py-80 {
    padding-top: 80px;
    padding-bottom: 80px;
}