:root {
    --bg-color: #f8f9fb;
    --text-main: #1a1d21;
    --text-secondary: #6b7280;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --border-color: #e5e7eb;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --font-main: 'Outfit', sans-serif;
    --max-width: 1200px;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: all 0.2s ease; }
a:hover { opacity: 0.8; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }

.bg-gradient {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; z-index: -1;
    background: radial-gradient(ellipse 60% 40% at 15% 20%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse 50% 50% at 85% 70%, rgba(139, 92, 246, 0.04) 0%, transparent 50%),
                linear-gradient(180deg, #f8f9fb 0%, #f0f2f5 100%);
    pointer-events: none;
}

/* Header */
.header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.5rem 0;
}

.header-inner {
    display: flex; align-items: center;
    position: relative;
    max-width: var(--max-width); margin: 0 auto; padding: 0 2rem;
}

.nav { display: flex; align-items: center; gap: 2.5rem; margin-left: auto; }

.nav-link {
    font-size: 0.95rem; font-weight: 500; color: var(--text-secondary);
    position: relative; padding-bottom: 4px;
}

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

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

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

.nav-btn {
    background: var(--text-main); color: #fff !important;
    padding: 0.6rem 1.4rem; border-radius: 10px;
    font-weight: 600; font-size: 0.9rem;
    transition: all 0.2s ease;
}

.nav-btn:hover { background: var(--accent); opacity: 1; transform: translateY(-1px); }

main { padding-top: 1rem; }

/* Hero */
.hero { padding: 3rem 0 4rem; }

.hero-layout {
    display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 4rem; align-items: center;
}

.hero-title {
    font-size: 2.6rem; line-height: 1.15; font-weight: 700;
    margin-bottom: 0.8rem; letter-spacing: -0.02em;
}

.hero-subtitle { font-size: 1.2rem; font-weight: 500; margin-bottom: 0.8rem; }

.hero-desc { font-size: 1rem; color: var(--text-secondary); margin-bottom: 1.5rem; }

.btn {
    display: inline-block; padding: 0.85rem 2rem; border-radius: 12px;
    font-weight: 600; font-size: 0.95rem; transition: all 0.25s ease; cursor: pointer; border: none;
}

.btn-primary { background: var(--text-main); color: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.btn-primary:hover { background: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25); }
.btn-submit { background: var(--text-main); color: #fff; width: 100%; margin-top: 0.5rem; }
.btn-submit:hover { background: var(--accent); transform: translateY(-2px); }

/* Hero Visuals */
.hero-visual { position: relative; height: 420px; }
.image-stack { position: relative; width: 100%; height: 100%; }

.stack-img { position: absolute; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); transition: 0.4s ease; }

.img-1 { width: 85%; height: 65%; top: 0; left: 0; z-index: 3; object-fit: cover; }
.img-2 { width: 50%; height: 42%; bottom: 0; right: 0; z-index: 2; object-fit: cover; border: 5px solid rgba(255,255,255,0.95); }
.img-3 { width: 48%; height: 48%; top: 15%; right: 25%; z-index: 1; object-fit: cover; filter: blur(6px); opacity: 0.5; }

.hero-visual:hover .img-1 { transform: translateY(-8px) rotate(1deg); }

/* Sections */
.section { padding: 4rem 0; }

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.text-card { max-width: 750px; margin: 0 auto; text-align: center; }
.text-card h2 { font-size: 1.6rem; margin-bottom: 1.5rem; font-weight: 600; }
.quote { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 1rem; font-style: italic; line-height: 1.75; }

/* About */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.split-text h2 { font-size: 2rem; margin-bottom: 1.5rem; font-weight: 700; }
.split-text p { margin-bottom: 1rem; color: var(--text-secondary); font-size: 1rem; line-height: 1.75; }
.split-visual img { border-radius: 20px; width: 100%; box-shadow: 0 10px 30px rgba(0,0,0,0.08); }

/* Projects */
.bg-light { background: linear-gradient(180deg, rgba(37, 99, 235, 0.02) 0%, rgba(139, 92, 246, 0.03) 50%, rgba(37, 99, 235, 0.02) 100%); }

.section-header { text-align: center; margin-bottom: 2.5rem; }

.section-badge {
    display: inline-block; padding: 0.4rem 0.9rem;
    background: rgba(0, 0, 0, 0.04); color: var(--text-secondary);
    border-radius: 6px; font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem;
}

.section-title { font-size: 2rem; margin-bottom: 0.3rem; font-weight: 700; }
.section-subtitle { color: var(--text-secondary); }

.projects-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem;
}

.project-card {
    background: #fff; border-radius: 16px; overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04); transition: all 0.3s ease;
    display: flex; flex-direction: column;
    border: 1px solid rgba(0,0,0,0.03);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.card-img {
    height: 140px; overflow: hidden; background: #f8fafc;
    display: flex; align-items: center; justify-content: center; padding: 2rem;
    border-bottom: 1px solid #f1f5f9;
}

.card-img img { max-width: 100%; max-height: 100%; object-fit: contain; transition: transform 0.4s ease; }
.project-card:hover .card-img img { transform: scale(1.08); }

.card-body { padding: 1.3rem; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { font-size: 1rem; margin-bottom: 0.4rem; font-weight: 600; }
.card-body p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }

/* Contact */
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.3fr; gap: 2.5rem; }

.contact-info h2 { font-size: 1.6rem; margin-bottom: 0.8rem; font-weight: 700; }
.contact-info p { color: var(--text-secondary); margin-bottom: 1.5rem; line-height: 1.7; }

.socials { display: flex; gap: 0.8rem; }
.socials a {
    width: 46px; height: 46px; border-radius: 12px; background: #f1f5f9;
    display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.85rem; color: var(--text-main);
    transition: all 0.2s;
}

.socials a:hover { background: var(--text-main); color: #fff; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.9rem; font-weight: 500; }
.form-group input, .form-group textarea {
    padding: 0.9rem 1.1rem; border: 1.5px solid #e5e7eb; border-radius: 12px;
    font-family: inherit; font-size: 0.95rem; background: #fff;
    transition: all 0.2s;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* Footer */
.footer { margin-top: 3rem; padding: 2rem 0; border-top: 1px solid rgba(0,0,0,0.06); text-align: center; color: var(--text-secondary); background: #fff; }
.footer-inner { display: flex; flex-direction: column; gap: 0.8rem; align-items: center; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-secondary); font-size: 0.85rem; }
.footer-links a:hover { color: var(--text-main); }

/* Mobile */
@media (max-width: 850px) {
    .header-inner { flex-direction: column; gap: 1rem; }
    .hero-layout { grid-template-columns: 1fr; gap: 2.5rem; }
    .hero-visual { display: none; }
    .hero-title { font-size: 2rem; }
    .split-layout { grid-template-columns: 1fr; gap: 2rem; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
    .projects-grid { grid-template-columns: 1fr; }
}