/* ============================================
   Adans General Standard - Global Stylesheet
   Brand Colors: Blue #1A3D7C | Yellow #F5B31A
   Version: 3.0 - Production Ready
   ============================================ */

/* ---------- RESET & BASE ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #FAFBFD;
    color: #1E2F3E;
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: #F4F6F9;
}

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

.mt-4 {
    margin-top: 32px;
}

.highlight {
    color: #F5B31A;
}

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

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

h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #F5B31A;
    margin-bottom: 1rem;
}

.section-header {
    margin-bottom: 48px;
}

.section-header h2 {
    margin-bottom: 0.5rem;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: #F5B31A;
    color: #1A3D7C;
    box-shadow: 0 4px 12px rgba(245, 179, 26, 0.25);
}

.btn-primary:hover {
    background-color: #E0A010;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(245, 179, 26, 0.35);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #F5B31A;
    color: white;
}

.btn-outline:hover {
    background-color: #F5B31A;
    color: #1A3D7C;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #1A3D7C;
    color: white;
    border-radius: 50px;
    padding: 12px 32px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    background-color: #0F2D5A;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-whatsapp:hover {
    background-color: #1DA851;
    transform: translateY(-2px);
}

.btn-link {
    color: #1A3D7C;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.3s ease;
}

.btn-link:hover {
    color: #F5B31A;
    gap: 10px;
}

/* ---------- SKIP LINK (Accessibility) ---------- */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #1A3D7C;
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* ---------- HEADER / NAVIGATION ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 61, 124, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.site-header.scrolled {
    padding: 8px 0;
    background: #1A3D7C;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: #F5B31A;
    font-weight: 600;
}

.main-nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
}

.main-nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.95rem;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: #F5B31A;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: white;
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
}

.header-cta .btn-whatsapp {
    padding: 8px 18px;
    font-size: 0.85rem;
}

/* ---------- HERO SECTION ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center 30%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-text {
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-tagline {
    display: inline-block;
    background: rgba(245, 179, 26, 0.2);
    backdrop-filter: blur(4px);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(245, 179, 26, 0.4);
}

.hero h1 {
    font-size: 3.8rem;
    margin-bottom: 1.2rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.hero-trust-badges {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 0.85rem;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    color: white;
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.hero-scroll-indicator:hover {
    opacity: 1;
}

.scroll-arrow {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* ---------- SLIDING STRIP ---------- */
.sliding-strip {
    background: #1A3D7C;
    padding: 24px 0;
    overflow: hidden;
    width: 100%;
}

.strip-container {
    width: 100%;
    overflow: hidden;
}

.strip-track {
    display: flex;
    gap: 20px;
    animation: slideLeft 30s linear infinite;
    width: fit-content;
}

.strip-track img {
    width: 280px;
    height: 180px;
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s;
}

.strip-track img:hover {
    transform: scale(1.03);
}

@keyframes slideLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---------- ABOUT SECTION ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content p {
    margin-bottom: 1rem;
    color: #4A5B6E;
    line-height: 1.6;
}

.about-stats {
    display: flex;
    gap: 32px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.stat {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: #1A3D7C;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: #6B7A8A;
}

.about-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.about-image img:hover {
    transform: scale(1.02);
}

/* ---------- COURSES PREVIEW ---------- */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.course-category {
    background: white;
    padding: 32px;
    border-radius: 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-bottom: 4px solid #F5B31A;
}

.course-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 35px rgba(0, 0, 0, 0.1);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.course-category h3 {
    color: #1A3D7C;
    margin-bottom: 16px;
}

.course-list {
    list-style: none;
    margin-bottom: 20px;
}

.course-list li {
    padding: 8px 0;
    border-bottom: 1px solid #E5E7EB;
    color: #4A5B6E;
    display: flex;
    align-items: center;
    gap: 8px;
}

.course-list li::before {
    content: "→";
    color: #F5B31A;
    font-weight: 600;
}

.course-meta {
    font-size: 0.85rem;
    color: #6B7A8A;
    margin: 16px 0;
    padding-top: 12px;
    border-top: 1px solid #E5E7EB;
}

/* ---------- WHY CHOOSE / FEATURES ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 32px 24px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    color: #1A3D7C;
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.feature-card p {
    color: #6B7A8A;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ---------- CTA SECTION ---------- */
.cta-section {
    background: linear-gradient(135deg, #1A3D7C 0%, #0F2D5A 100%);
    padding: 80px 0;
    text-align: center;
    color: white;
}

.cta-content h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.cta-content p {
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.cta-note {
    font-size: 0.85rem;
    opacity: 0.75;
}

/* ---------- FOOTER ---------- */
.site-footer {
    background: #0A1C33;
    color: #B0C4DE;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.footer-logo span {
    color: #F5B31A;
}

.footer-about p {
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: #F5B31A;
}

.footer-links h4,
.footer-contact h4,
.footer-hours h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #B0C4DE;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: #F5B31A;
}

.footer-contact address p {
    font-size: 0.85rem;
    margin-bottom: 8px;
    font-style: normal;
    line-height: 1.5;
}

.footer-contact a {
    color: #B0C4DE;
    text-decoration: none;
}

.footer-contact a:hover {
    color: #F5B31A;
}

.footer-hours p {
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
}

.footer-bottom a {
    color: #F5B31A;
    text-decoration: none;
}

/* ---------- FLOATING WHATSAPP ---------- */
.floating-whatsapp {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100;
}

.floating-whatsapp a {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: #25D366;
    padding: 12px 20px;
    border-radius: 50px;
    text-decoration: none;
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.floating-whatsapp a:hover {
    transform: scale(1.05);
    background-color: #1DA851;
}

.floating-whatsapp span {
    font-size: 0.9rem;
}

/* ---------- RESPONSIVE (MOBILE FIRST) ---------- */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 50px 0;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    /* Mobile menu off-canvas */
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        max-width: 80%;
        height: 100vh;
        background: #1A3D7C;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 100px 24px 40px;
        transition: left 0.3s ease;
        z-index: 1000;
        box-shadow: 2px 0 20px rgba(0, 0, 0, 0.2);
        margin: 0;
        gap: 0;
        display: flex !important;
    }
    
    .nav-menu.open {
        left: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 24px;
        width: 100%;
    }
    
    .main-nav ul li a {
        font-size: 1.1rem;
        display: block;
        padding: 8px 0;
    }
    
    .header-cta {
        display: none;
    }
    
    .hero-trust-badges {
        gap: 12px;
        font-size: 0.7rem;
    }
    
    .strip-track img {
        width: 200px;
        height: 130px;
    }
    
    .cta-content h2 {
        font-size: 1.6rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .floating-whatsapp span {
        display: none;
    }
    
    .floating-whatsapp a {
        padding: 12px;
        border-radius: 50px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .about-stats {
        gap: 20px;
        justify-content: space-between;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
}