:root {
    --bg: #faf9f6;
    --text: #1a1a1a;
    --text-light: #555;
    --accent: #d97706;
    --accent-hover: #b65c04;
    --card-bg: #ffffff;
    --border: #e5e0d8;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --radius: 12px;
    --max-width: 1100px;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.25; font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin-bottom: 0.5rem; }
h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }
p { margin-bottom: 1rem; color: var(--text-light); }
.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 0.75rem;
}
.subsection-label {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
section { padding: 5rem 0; }
section:first-of-type { padding-top: 6rem; }
header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(250, 249, 246, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    transition: box-shadow 0.3s;
}
header.scrolled { box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05); }
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}
.logo { font-weight: 800; font-size: 1.2rem; color: var(--text); letter-spacing: -0.01em; }
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a { color: var(--text); font-weight: 500; font-size: 0.95rem; position: relative; padding-bottom: 4px; }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.25s;
}
.nav-links a:hover::after { width: 100%; }
.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff !important;
    padding: 0.65rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
    text-decoration: none;
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-outline {
    background: transparent;
    color: var(--text) !important;
    border: 2px solid var(--border);
    margin-left: 0.75rem;
}
.btn-outline:hover { border-color: var(--accent); background: transparent; color: var(--accent) !important; }
.mobile-menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.mobile-menu-btn span { display: block; width: 26px; height: 2.5px; background: var(--text); margin: 6px 0; border-radius: 2px; transition: 0.3s; }
.hero { padding-top: 8rem; padding-bottom: 4rem; text-align: center; }
.hero h1 { max-width: 750px; margin: 0 auto 1.25rem; }
.hero p { max-width: 600px; margin: 0 auto 2rem; font-size: 1.1rem; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0.35rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}
.hero-badge .dot { width: 8px; height: 8px; background: #22c55e; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.stats-bar { display: flex; justify-content: center; gap: 3rem; margin-top: 2.5rem; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-number { font-size: 2rem; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.stat-label { font-size: 0.85rem; color: var(--text-light); font-weight: 500; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.75rem; margin-top: 2.5rem; }
.service-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem 1.75rem;
    box-shadow: var(--shadow);
    transition: transform 0.25s, box-shadow 0.25s;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1); }
.service-icon { font-size: 2rem; margin-bottom: 1rem; }
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2rem; margin-top: 1.5rem; }
.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.25s, box-shadow 0.25s;
    display: flex;
    flex-direction: column;
}
.project-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1); }
.project-card.featured { border: 2px solid var(--accent); position: relative; }
.project-card.featured::before {
    content: '★ FEATURED';
    position: absolute;
    top: 12px; right: 12px;
    background: var(--accent);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.08em;
    z-index: 10;
}
.project-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    flex-shrink: 0;
}
.project-body { padding: 1.5rem; flex-grow: 1; display: flex; flex-direction: column; }
.project-body h3 { margin-bottom: 0.25rem; }
.project-body p { flex-grow: 1; font-size: 0.92rem; }
.tech-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.tech-tag { background: #f5f0ea; color: var(--text-light); padding: 0.25rem 0.7rem; border-radius: 4px; font-size: 0.78rem; font-weight: 500; }
.project-links { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1rem; }
.project-link { font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.3rem; }
.process-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin-top: 2.5rem; counter-reset: step; }
.step { position: relative; padding: 1.5rem; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.step::before {
    counter-increment: step;
    content: counter(step);
    display: inline-block;
    width: 32px; height: 32px;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    margin-bottom: 1rem;
}
.step h4 { margin-bottom: 0.4rem; }
.step p { font-size: 0.9rem; margin: 0; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-top: 2rem; }
.about-text .highlight {
    background: #fff3e0;
    padding: 1.25rem 1.5rem;
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 1.5rem 0;
}
.about-text .highlight p { margin: 0; font-style: italic; }
.github-link { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600; }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 2.5rem; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form input, .contact-form select, .contact-form textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.1);
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.contact-form button { align-self: flex-start; }
.form-status { font-size: 0.9rem; font-weight: 500; min-height: 1.5rem; }
.form-status.success { color: #16a34a; }
.form-status.error { color: #dc2626; }
.contact-info { display: flex; flex-direction: column; gap: 1.5rem; justify-content: center; }
.contact-info-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-icon { font-size: 1.5rem; flex-shrink: 0; }
footer { text-align: center; padding: 2.5rem 0; border-top: 1px solid var(--border); font-size: 0.9rem; color: var(--text-light); }
footer a { font-weight: 600; }
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: 1.5rem;
        border-bottom: 1px solid var(--border);
        gap: 1rem;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    }
    .nav-links.active { display: flex; }
    .mobile-menu-btn { display: block; }
    .hero { padding-top: 6rem; }
    .about-content, .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
    .btn-outline { margin-left: 0; margin-top: 0.5rem; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .stats-bar { gap: 1.5rem; }
}