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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --border: #e2e8f0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--light);
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark);
    border-radius: 2px;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 60px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Sections */
section {
    padding: 80px 20px;
}

section h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 1rem;
}

.contact-email {
    text-align: center;
    margin-bottom: 2rem;
}

.contact-email a {
    color: var(--primary);
    font-weight: 500;
    font-size: 1.1rem;
}

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

/* Services */
.services {
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
    transition: box-shadow 0.3s, transform 0.2s;
}

.service-card:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.service-icon {
    color: var(--primary);
    margin-bottom: 1rem;
}

.service-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.service-card p {
    color: var(--gray);
}

/* Projects */
.projects {
    background: var(--light);
}

/* Hero Projects */
.hero-projects {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 3rem;
}

.hero-card {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: box-shadow 0.3s, transform 0.2s;
}

.hero-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.hero-image {
    position: relative;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    object-position: top left;
    transition: transform 0.3s;
    cursor: zoom-in;
}

.hero-card:hover .hero-image > img {
    transform: scale(1.02);
}

.hero-thumbnails {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--light);
}

.hero-thumbnails img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    object-position: top left;
    border-radius: 4px;
    cursor: zoom-in;
    transition: transform 0.2s, box-shadow 0.2s;
}

.hero-thumbnails img:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.hero-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--dark);
}

.hero-content p {
    color: var(--gray);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
    flex-grow: 1;
}

.hero-card:hover .visit-link {
    text-decoration: underline;
}

/* Featured Projects (legacy) */
.featured-projects {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 3rem;
}

.featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: box-shadow 0.3s, transform 0.2s;
}

.featured-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.featured-image {
    position: relative;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    object-position: top left;
    transition: transform 0.3s;
    cursor: zoom-in;
}

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

.featured-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-tag {
    display: inline-block;
    background: #e0f2fe;
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    width: fit-content;
}

.featured-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.featured-content p {
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tech span {
    background: var(--light);
    color: var(--gray);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
}

.visit-link {
    color: var(--primary);
    font-weight: 600;
    transition: gap 0.2s;
}

.internal-tag {
    display: inline-block;
    background: #f1f5f9;
    color: var(--gray);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.featured-card:hover .visit-link {
    text-decoration: underline;
}

/* Other Projects */
.other-projects-title {
    text-align: center;
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.other-projects {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.other-card {
    display: flex;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: box-shadow 0.3s, transform 0.2s;
}

.other-card:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.other-image {
    width: 160px;
    height: 120px;
    object-fit: cover;
    object-position: top;
    flex-shrink: 0;
    cursor: zoom-in;
}

.other-content {
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.other-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.other-content p {
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.other-content .visit-link {
    font-size: 0.85rem;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 8px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 1;
}

/* Contact */
.contact {
    background: white;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-button:hover {
    background: var(--primary-dark);
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 2rem;
    text-align: center;
}

footer p {
    opacity: 0.8;
}

/* Mobile Responsiveness */
@media (max-width: 900px) {
    .hero-projects {
        grid-template-columns: 1fr;
    }

    .hero-image img {
        height: 250px;
    }

    .hero-thumbnails {
        display: none;
    }

    .featured-card {
        grid-template-columns: 1fr;
    }

    .featured-image img {
        min-height: 250px;
        max-height: 300px;
    }

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

    .other-card {
        flex-direction: column;
    }

    .other-image {
        width: 100%;
        height: 180px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem 2rem;
        gap: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

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

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    section h2 {
        font-size: 1.75rem;
    }

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

    .featured-content {
        padding: 1.5rem;
    }

    .featured-content h3 {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 1rem;
    }

    .logo a {
        font-size: 1.25rem;
    }

    .hero {
        padding: 80px 15px 40px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    section {
        padding: 60px 15px;
    }

    .featured-image img {
        min-height: 200px;
    }

    .featured-content {
        padding: 1.25rem;
    }

    .project-tech {
        gap: 0.35rem;
    }

    .project-tech span {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }
}