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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #f8f8f8;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-tertiary: #999;
    --border-color: #e8e8e8;
    --card-bg: #ffffff;
    --card-secondary: #f8f8f8;
    --hover-bg: #f0f0f0;
}

[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-tertiary: #808080;
    --border-color: #333;
    --card-bg: #242424;
    --card-secondary: #2a2a2a;
    --hover-bg: #333;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.header {
    padding: 20px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav li {
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 15px;
}

.nav li:hover {
    color: var(--text-primary);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
}

#theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.2s ease;
}

#theme-toggle:hover {
    background: var(--hover-bg);
}

.nav .cta-btn {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    padding: 10px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.nav .cta-btn:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.hero {
    padding: 80px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 85vh;
    background: var(--bg-primary);
    transition: background-color 0.3s ease;
}

.hero-content {
    max-width: 55%;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 20px;
    line-height: 1.1;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1.5px;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.services {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 35px;
}

.service {
    background: var(--bg-tertiary);
    padding: 10px 20px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.service:hover {
    background: var(--hover-bg);
    border-color: var(--text-tertiary);
}

.view-projects {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s ease;
}

.view-projects:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.profile-backdrop {
    width: 380px;
    height: 480px;
    background: var(--bg-tertiary);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .profile-backdrop {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.profile-img {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    object-fit: cover;
    background: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
}

.clients {
    background: var(--card-bg);
    padding: 50px 60px;
    text-align: center;
    margin: 40px auto;
    max-width: 90%;
    border-radius: 16px;
    transition: background-color 0.3s ease;
}

.clients p {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 30px;
    color: var(--text-tertiary);
    font-weight: 600;
}

.client-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-item {
    background: var(--bg-tertiary);
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.logo-item:hover {
    background: var(--hover-bg);
    border-color: var(--text-tertiary);
    transform: translateY(-3px);
}

.logo-item svg {
    width: 20px;
    height: 20px;
}

.about {
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 80px 60px;
    max-width: 90%;
    margin: 40px auto;
    border-radius: 16px;
    transition: background-color 0.3s ease;
}

.about h4 {
    color: var(--text-tertiary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
    font-weight: 600;
}

.about h2 {
    font-size: 42px;
    margin-bottom: 25px;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.about p {
    font-size: 17px;
    margin-bottom: 20px;
    line-height: 1.7;
    color: var(--text-secondary);
}

.build-together {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 35px 0 25px 0;
    letter-spacing: -0.5px;
}

.about button {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s ease;
}

.about button:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.projects {
    padding: 80px 60px;
    background: var(--card-bg);
    color: var(--text-primary);
    max-width: 90%;
    margin: 0 auto 40px auto;
    border-radius: 16px;
    transition: background-color 0.3s ease;
}

.projects h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -1px;
}

/* FIXED: Changed from auto-fit to fixed 3 columns */
.project-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-card {
    background: var(--card-secondary);
    padding: 0;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .project-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.project-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: linear-gradient(135deg, #e0e0e0 0%, #f5f5f5 100%);
}

.project-content {
    padding: 24px;
    background: var(--card-bg);
    transition: background-color 0.3s ease;
}

.project-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.3px;
}

.project-card a {
    display: inline-block;
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.project-card a:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.project-card details {
    margin-top: 12px;
}

.project-card summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 8px 0;
    font-size: 14px;
    transition: all 0.2s ease;
}

.project-card summary:hover {
    color: var(--text-primary);
}

.project-card details p {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Responsive breakpoints for smaller screens */
@media (max-width: 1200px) {
    .project-gallery {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column-reverse;
        padding: 60px 30px;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
    }

    .hero h1 {
        font-size: 38px;
    }

    .profile-backdrop {
        width: 280px;
        height: 350px;
        margin-bottom: 40px;
    }

    .profile-img {
        width: 250px;
        height: 320px;
    }

    .services {
        justify-content: center;
    }

    .nav ul {
        gap: 20px;
    }
    
    .project-gallery {
        grid-template-columns: 1fr;
    }
}