/* =========================================
   CSS Variables & Resets
   ========================================= */
:root {
    --primary-color: #0d47a1; /* Deep Trust Blue */
    --primary-light: #1976d2;
    --secondary-color: #00bcd4; /* Vibrant Cyan */
    --accent-color: #ff9800; /* Warm Orange for CTA */
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #f5f7fa;
    --bg-white: #ffffff;
    --transition: all 0.3s ease;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 30px rgba(13, 71, 161, 0.15);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for fixed header */
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.bg-light {
    background-color: var(--bg-light);
}

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

.mt-20 {
    margin-top: 20px;
}

/* =========================================
   Typography & Utilities
   ========================================= */
.section-subtitle {
    color: var(--secondary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    border: none;
    text-align: center;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 15px rgba(13, 71, 161, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 71, 161, 0.4);
}

.btn-secondary {
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
}

.btn-secondary:hover {
    background-color: #f57c00;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 152, 0, 0.4);
}

.btn-primary-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 600;
}

.btn-primary-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: #25D366;
    color: #fff;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    margin-top: 15px;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-2px);
}

.btn-block {
    display: block;
    width: 100%;
}

/* =========================================
   Navigation
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    padding: 15px 0;
}

.navbar.scrolled {
    padding: 10px 0;
    background-color: rgba(255, 255, 255, 0.98);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: 'Outfit', sans-serif;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links li a {
    font-weight: 500;
    color: var(--text-dark);
    font-size: 1rem;
}

.nav-links li a:not(.btn-primary-outline):hover {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    font-size: 1.8rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    height: 100vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1573164713988-8665fc963095?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 71, 161, 0.9) 0%, rgba(0, 188, 212, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content .highlight {
    color: var(--secondary-color);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* =========================================
   About Section
   ========================================= */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.about-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-dark);
}

.about-features i {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-hover);
}

.image-wrapper img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.image-wrapper:hover img {
    transform: scale(1.05);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--primary-color);
    color: #fff;
    padding: 30px;
    border-radius: 50%;
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    border: 8px solid #fff;
    box-shadow: var(--shadow-hover);
}

.experience-badge .years {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* =========================================
   Services Section
   ========================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-bottom: 4px solid var(--secondary-color);
}

.service-card .icon-box {
    width: 70px;
    height: 70px;
    background: rgba(0, 188, 212, 0.1);
    color: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .icon-box {
    background: var(--secondary-color);
    color: #fff;
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.service-card ul li {
    font-size: 0.9rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.service-card ul li i {
    color: var(--primary-light);
    font-size: 0.8rem;
}

/* =========================================
   Courses Section
   ========================================= */
.courses {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: #fff;
}

.courses .section-title {
    color: #fff;
}

.courses .section-subtitle {
    color: rgba(255,255,255,0.8);
}

.course-highlight-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px;
    display: flex;
    align-items: flex-start;
    gap: 30px;
    margin-top: 40px;
}

.course-icon {
    background: var(--accent-color);
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.5rem;
    flex-shrink: 0;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.course-details h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.course-details p {
    font-size: 1.1rem;
    line-height: 1.8;
    opacity: 0.9;
}

/* =========================================
   Contact Section
   ========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info .info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item .icon {
    width: 50px;
    height: 50px;
    background: var(--primary-light);
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.info-item p {
    color: var(--text-light);
}

.whatsapp-card {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-soft);
    border-left: 5px solid #25D366;
}

.contact-form-wrapper {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

/* =========================================
   Footer
   ========================================= */
.footer {
    background-color: #051626; /* Very Dark Blue */
    color: #a0aec0;
    padding-top: 80px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.logo-footer {
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    font-family: 'Outfit', sans-serif;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-brand p {
    margin-bottom: 20px;
    max-width: 400px;
}

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

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

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

.footer h4 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--secondary-color);
}

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

.footer ul li a {
    color: #a0aec0;
}

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

.footer-bottom {
    background-color: #030e1a;
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* =========================================
   Animations (Intersection Observer)
   ========================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-left.appear {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.slide-in-right.appear {
    opacity: 1;
    transform: translateX(0);
}

.zoom-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.zoom-in.appear {
    opacity: 1;
    transform: scale(1);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* =========================================
   Responsive Design
   ========================================= */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .about-container {
        grid-template-columns: 1fr;
    }
    
    .experience-badge {
        bottom: 20px;
        left: 20px;
        width: 120px;
        height: 120px;
        padding: 20px;
    }
    
    .experience-badge .years {
        font-size: 2rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: #fff;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.4s ease-in-out;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .course-highlight-box {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}