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

:root {
    /* Colors */
    --primary-color: #1e40af;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --dark-bg: #0f172a;
    --dark-bg-alt: #1e293b;
    --light-bg: #f8fafc;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --overlay: rgba(15, 23, 42, 0.75);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-max-width: 1200px;

    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    background: var(--secondary-color);
    border-radius: 8px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 35px;
    align-items: center;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-container,
.hero-image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-video,
.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.85) 0%, rgba(15, 23, 42, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: 300;
    margin-bottom: 50px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.8);
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-arrow {
    width: 2px;
    height: 40px;
    background: var(--white);
    margin: 10px auto;
    position: relative;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0%, 100% { opacity: 0; transform: translateY(-10px); }
    50% { opacity: 1; transform: translateY(10px); }
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease-out 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.6s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease-out 0.9s both;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: 15px 35px;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.btn-submit {
    width: 100%;
}

/* ============================================
   SECTION STYLES
   ============================================ */
section {
    padding: var(--section-padding);
}

.section-header {
    margin-bottom: 60px;
}

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

.section-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--dark-bg);
    margin-bottom: 20px;
    line-height: 1.2;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.about-image-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--secondary-color);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.1rem;
}

.about-text h3 {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--dark-bg);
    margin-bottom: 10px;
}

.about-role {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 25px;
}

.about-description {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 30px;
}

.credentials {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 35px;
}

.credential-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.credential-icon {
    width: 24px;
    height: 24px;
    color: var(--secondary-color);
}

.about-quote {
    background: var(--white);
    border-left: 4px solid var(--secondary-color);
    padding: 25px 30px;
    border-radius: 8px;
    font-style: italic;
    color: var(--text-dark);
    margin-top: 35px;
}

.about-quote cite {
    display: block;
    margin-top: 15px;
    font-style: normal;
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.service-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .service-image img {
    transform: scale(1.1);
}

.service-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 64, 175, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover .service-overlay {
    opacity: 1;
}

.service-cta {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
}

.service-content {
    padding: 30px;
}

.service-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--dark-bg);
    margin-bottom: 15px;
}

.service-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.service-features li {
    color: var(--text-dark);
    font-size: 0.95rem;
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    background: var(--light-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.project-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--secondary-color);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.project-info {
    padding: 30px;
}

.project-info h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--dark-bg);
    margin-bottom: 20px;
}

.project-details {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 15px;
}

.project-detail {
    font-size: 0.9rem;
    color: var(--text-light);
}

.project-detail strong {
    color: var(--primary-color);
}

.project-info p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */
.certifications {
    background: var(--dark-bg);
    color: var(--white);
}

.certifications .section-label {
    color: var(--secondary-color);
}

.certifications .section-title {
    color: var(--white);
}

.certifications-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.certifications-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cert-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.cert-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.cert-icon {
    width: 50px;
    height: 50px;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 10px;
    padding: 10px;
    color: var(--secondary-color);
    flex-shrink: 0;
}

.cert-icon svg {
    width: 100%;
    height: 100%;
}

.cert-text h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--white);
}

.cert-text p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.certifications-image img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    border-radius: 12px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--light-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
}

.contact-info p {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.contact-detail {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-detail h4 {
    font-size: 1.1rem;
    color: var(--dark-bg);
    margin-bottom: 5px;
}

.contact-detail p {
    color: var(--text-light);
    margin: 0;
}

.contact-detail a {
    color: var(--primary-color);
}

.contact-detail a:hover {
    text-decoration: underline;
}

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

.social-link {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Form Styles */
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--dark-bg);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.footer-logo img {
    width: 40px;
    height: 40px;
    background: var(--secondary-color);
    border-radius: 8px;
}

.footer-logo span {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--white);
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: 25px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .about-content,
    .certifications-wrapper,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .certifications-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--dark-bg);
        flex-direction: column;
        align-items: flex-start;
        padding: 40px;
        gap: 25px;
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-stats {
        gap: 30px;
    }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .about-image img,
    .certifications-image img {
        height: 400px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .contact-form {
        padding: 25px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}