/* =========================================
   CSS variables for Themes (Light / Dark)
   ========================================= */
:root {
    /* Light Theme (Default) */
    --clr-bg: #f8fafc;
    --clr-surface: #ffffff;
    --clr-surface-alt: #f1f5f9;
    --clr-text: #334155;
    --clr-text-muted: #64748b;
    --clr-heading: #0f172a;
    
    --clr-primary: #2563eb; /* Trustworthy Blue */
    --clr-primary-hover: #1d4ed8;
    --clr-accent: #f59e0b; /* Energetic Gold/Yellow */
    --clr-accent-hover: #d97706;
    
    --clr-border: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 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);
    --shadow-hard: 8px 8px 0px 0px rgba(15, 23, 42, 0.1);
    
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    --font-family: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --clr-bg: #0f172a;
    --clr-surface: #1e293b;
    --clr-surface-alt: #0b1120;
    --clr-text: #cbd5e1;
    --clr-text-muted: #94a3b8;
    --clr-heading: #f8fafc;
    
    --clr-primary: #3b82f6; 
    --clr-primary-hover: #60a5fa;
    --clr-accent: #fbbf24;
    --clr-accent-hover: #fcd34d;
    
    --clr-border: #334155;
    
    --shadow-hard: 8px 8px 0px 0px rgba(248, 250, 252, 0.05);
}

/* =========================================
   Reset & Base Styles
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--clr-heading);
    font-weight: 700;
    line-height: 1.2;
    transition: color 0.4s ease;
}

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-padding {
    padding: 100px 0;
}

.text-center { text-align: center; }
.mt-3 { margin-top: 1.5rem; }

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.section-subtitle {
    font-size: 1.125rem;
    color: var(--clr-text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.bg-alt { background-color: var(--clr-surface-alt); }

/* =========================================
   Buttons & Links
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--clr-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}
.btn-primary:hover {
    background-color: var(--clr-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-heading);
    border: 2px solid var(--clr-heading);
}
.btn-outline:hover {
    background-color: var(--clr-heading);
    color: var(--clr-bg);
}

.btn-whatsapp {
    background-color: #25D366;
    color: #fff;
    margin-top: 1rem;
}
.btn-whatsapp:hover {
    background-color: #128C7E;
    color: #fff;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* =========================================
   Navbar & Header
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(var(--clr-surface-rgb), 0.85);
    background-color: var(--clr-surface);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--clr-heading);
}
.logo-icon {
    color: var(--clr-primary);
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}
.nav-link {
    font-weight: 500;
    color: var(--clr-text);
    position: relative;
}
.nav-link:hover, .nav-link.active {
    color: var(--clr-primary);
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--clr-primary);
    transition: var(--transition);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.lang-switcher, .lang-switcher-mobile {
    display: flex;
    background-color: var(--clr-surface-alt);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--clr-border);
}
.lang-btn {
    background: transparent;
    border: none;
    color: var(--clr-text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}
.lang-btn.active {
    background-color: var(--clr-primary);
    color: #fff;
}

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--clr-text);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
}
.theme-toggle:hover {
    color: var(--clr-primary);
    transform: rotate(15deg);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--clr-heading);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
}
.mobile-nav-overlay.active {
    right: 0;
    opacity: 1;
    visibility: visible;
}

.mobile-nav-content {
    position: absolute;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100%;
    background-color: var(--clr-surface);
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: var(--transition);
    transition-delay: 0.1s;
}
.mobile-nav-overlay.active .mobile-nav-content {
    right: 0;
}

.close-menu {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    color: var(--clr-heading);
    cursor: pointer;
}
.mobile-link {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--clr-heading);
}
.mobile-extra {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-bg .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #0f172a 0%, rgba(15, 23, 42, 0.7) 100%);
    /* Default dark overlay so text is readable regardless of theme */
}
[data-theme="light"] .hero-bg .overlay {
    background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text .badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--clr-primary);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.hero-text h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}
[data-theme="dark"] .hero-text h1, [data-theme="dark"] .hero-text p {
    color: #f8fafc;
}
[data-theme="light"] .hero-text h1 {
    color: #0f172a;
}
[data-theme="light"] .hero-text p {
    color: #334155;
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

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

.hero-stats {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.5rem;
}
.stat-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    min-width: 250px;
    color: #f8fafc;
}
[data-theme="light"] .stat-box {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: #0f172a;
    box-shadow: var(--shadow-lg);
}
.stat-box i {
    font-size: 2.5rem;
    color: var(--clr-accent);
}
.stat-box h4 {
    font-size: 2rem;
    margin-bottom: 0.2rem;
    color: inherit;
}
.stat-box span {
    font-size: 1rem;
    opacity: 0.9;
}

/* =========================================
   About Section
   ========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-hard);
}
.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    aspect-ratio: 4/5;
    transition: transform 0.5s ease;
}
.about-image:hover img {
    transform: scale(1.05);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--clr-primary);
    color: #fff;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 10px solid var(--clr-bg);
    animation: float 6s ease-in-out infinite;
}
.experience-badge .years {
    font-size: 1.5rem;
    font-weight: 700;
}
.experience-badge .text {
    font-size: 0.875rem;
    text-align: center;
    line-height: 1.2;
}

.about-text .lead {
    font-size: 1.25rem;
    color: var(--clr-heading);
    font-weight: 500;
    margin-bottom: 1rem;
}
.features-list {
    list-style: none;
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.features-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.125rem;
    font-weight: 500;
}
.features-list i {
    color: var(--clr-primary);
    font-size: 1.5rem;
}

/* =========================================
   Services Section
   ========================================= */
.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}
.card {
    background-color: var(--clr-surface);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--clr-border);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--clr-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}
.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}
.card:hover::before {
    transform: scaleX(1);
}
.card-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--clr-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto 1.5rem;
    transition: var(--transition);
}
.card:hover .card-icon {
    background-color: var(--clr-primary);
    color: #fff;
    transform: rotateY(180deg);
}
.card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}
.card p {
    color: var(--clr-text-muted);
}

/* =========================================
   Training & Advice Section
   ========================================= */
.training-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.accordion {
    margin-top: 2rem;
}
.accordion-item {
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
    background-color: var(--clr-surface);
}
.accordion-header {
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    background-color: var(--clr-surface);
    transition: var(--transition);
}
.accordion-header i {
    color: var(--clr-primary);
    font-size: 1.25rem;
}
.accordion-header h4 {
    margin: 0;
    font-size: 1.125rem;
}
.accordion-header:hover {
    background-color: var(--clr-surface-alt);
}
.accordion-body {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}
.accordion-item.active .accordion-body {
    padding: 1.25rem 1.5rem;
    max-height: 200px;
}
.accordion-item.active .accordion-header {
    border-bottom: 1px solid var(--clr-border);
}

.training-images {
    position: relative;
    height: 500px;
}
.training-images .img-main {
    position: absolute;
    top: 0;
    right: 0;
    width: 80%;
    height: 80%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.training-images .img-sub {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60%;
    height: 60%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 8px solid var(--clr-bg);
    box-shadow: var(--shadow-lg);
}

/* =========================================
   Testimonials
   ========================================= */
.testimonial-carousel {
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    padding: 2rem 0;
}
.testimo-track {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none; /* Firefox */
}
.testimo-track::-webkit-scrollbar {
    display: none; /* Chrome */
}
.testimo-card {
    min-width: 100%;
    scroll-snap-align: center;
    background-color: var(--clr-surface);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    border: 1px solid var(--clr-border);
}
.student-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    border: 3px solid var(--clr-accent);
}
.stars {
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}
.quote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--clr-heading);
    margin-bottom: 1.5rem;
}
.author {
    color: var(--clr-primary);
    font-weight: 600;
}

/* =========================================
   Contact Form
   ========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}
.contact-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.contact-item .icon {
    width: 60px;
    height: 60px;
    background-color: var(--clr-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--clr-primary);
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
    border: 1px solid var(--clr-border);
}
.contact-item h4 {
    margin-bottom: 0.5rem;
}
.contact-item p {
    color: var(--clr-text-muted);
    margin-bottom: 0.5rem;
}
.link {
    color: var(--clr-primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.link:hover {
    color: var(--clr-primary-hover);
    gap: 0.8rem;
}

.contact-form-wrapper {
    background-color: var(--clr-surface);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--clr-border);
}
.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: var(--clr-surface-alt);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    color: var(--clr-text);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group label {
    position: absolute;
    left: 1rem;
    top: 1rem;
    color: var(--clr-text-muted);
    transition: var(--transition);
    pointer-events: none;
}
/* Float label on focus or valid */
.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -0.5rem;
    left: 0.8rem;
    font-size: 0.8rem;
    background-color: var(--clr-surface);
    padding: 0 0.5rem;
    color: var(--clr-primary);
}
.form-group select ~ label {
    top: -0.5rem;
    left: 0.8rem;
    font-size: 0.8rem;
    background-color: var(--clr-surface);
    padding: 0 0.5rem;
}

.form-status {
    margin-top: 1rem;
    font-weight: 500;
    display: none;
}
.form-status.success {
    display: block;
    color: #25D366;
}
.form-status.error {
    display: block;
    color: #ef4444;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    background-color: var(--clr-heading);
    color: var(--clr-surface);
    padding: 2rem 0;
}
[data-theme="dark"] .footer {
    background-color: var(--clr-surface-alt);
    border-top: 1px solid var(--clr-border);
}
.footer .logo-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 1rem;
}
.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.social-link:hover {
    background-color: var(--clr-primary);
    transform: translateY(-3px);
}

/* =========================================
   Animations & Utilities
   ========================================= */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reveal Elements on Scroll */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   Responsive Design
   ========================================= */
@media (max-width: 992px) {
    .nav-links, .nav-book, .lang-switcher {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .hero-content, .about-grid, .training-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    .hero {
        padding-top: 100px;
    }
    .hero-text h1 {
        font-size: 3rem;
    }
    .hero-stats {
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .experience-badge {
        width: 100px;
        height: 100px;
        bottom: -10px;
        right: -10px;
        border-width: 5px;
    }
    .experience-badge .years { font-size: 1.25rem; }
    .training-images {
        height: 400px;
    }
}

@media (max-width: 576px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .card {
        padding: 2rem 1.5rem;
    }
    .contact-form-wrapper {
        padding: 2rem;
    }
    .stat-box {
        min-width: 100%;
    }
}