/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --text: #000000;
    --muted: #666666;
    --border: #e0e0e0;
    --btn-primary: #000000;
    --btn-primary-hover: #333333;
    --accent: #000000;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 300;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* Header */
.site-header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 200;
    letter-spacing: 1.5px;
    color: var(--text);
    text-decoration: none;
}

.logo {
    text-decoration: none;
    color: inherit;
}

/* Navigation */
.main-nav {
    position: relative;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-list a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: color 0.2s;
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--muted);
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--text);
}

.nav-list a.client-access {
    background: var(--btn-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
}

.nav-list a.client-access:hover {
    background: var(--btn-primary-hover);
    color: white;
}

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.hero h2 {
    font-size: 3rem;
    font-weight: 200;
    letter-spacing: 2px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--muted);
    max-width: 600px;
    margin: 0 auto 40px;
    font-weight: 300;
}

.hero-cta {
    display: inline-block;
    background: var(--btn-primary);
    color: white;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: all 0.2s;
}

.hero-cta:hover {
    background: var(--btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Page Header */
.page-header {
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.page-header h2 {
    font-size: 2.5rem;
    font-weight: 200;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

/* Content Sections */
.content-section {
    padding: 80px 0;
}

.content-section h3 {
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 30px;
}

.content-section p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text);
}

/* Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    padding: 60px 0;
}

.project-card {
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.3s;
}

.project-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.project-image {
    width: 100%;
    height: 250px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.9rem;
}

.project-info {
    padding: 24px;
}

.project-info h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.project-info p {
    font-size: 0.9rem;
    color: var(--muted);
    margin-bottom: 15px;
}

.project-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--muted);
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 400;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 300;
    transition: border-color 0.2s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.submit-btn {
    background: var(--btn-primary);
    color: white;
    padding: 14px 32px;
    border: none;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s;
}

.submit-btn:hover {
    background: var(--btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Footer */
.site-footer {
    background: #fafafa;
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
    margin-top: 80px;
}

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

.footer-section h3,
.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.footer-section p,
.footer-section a {
    font-size: 0.9rem;
    color: var(--muted);
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: var(--text);
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--muted);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-list {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

    .nav-list.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .hero h2 {
        font-size: 2rem;
    }

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

    .page-header h2 {
        font-size: 2rem;
    }

    .project-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}