/* ========================================
   DANDA.PRO — Developer Portfolio
   Dark, modern, clean
   ======================================== */

:root {
    --bg: #0a0a0a;
    --bg-card: #141414;
    --bg-elevated: #1a1a1a;
    --text: #e8e8e8;
    --text-dim: #888;
    --text-muted: #555;
    --accent: #4f9cf7;
    --accent-hover: #3b87e0;
    --green: #4ade80;
    --border: #222;
    --radius: 16px;
    --radius-sm: 10px;
    --font: 'Space Grotesk', 'Inter', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --shadow: 0 4px 32px rgba(0,0,0,0.3);
    --transition: all 0.3s ease;
    --max-w: 1100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.accent { color: var(--accent); }

/* NAV */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 0 24px; height: 72px;
    background: rgba(10,10,10,0.85); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.nav-inner {
    max-width: var(--max-w); margin: 0 auto; height: 100%;
    display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
    font-family: var(--font); font-size: 1.4rem; font-weight: 700;
    color: var(--text); letter-spacing: -0.5px;
}
.nav-brand:hover { color: var(--text); }
.nav-links { list-style: none; display: flex; gap: 28px; }
.nav-links a {
    font-size: 0.85rem; font-weight: 500; color: var(--text-dim);
    letter-spacing: 0.3px; transition: var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-toggle { display: none; flex-direction: column; gap: 6px; padding: 4px; }
.nav-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--text); transition: var(--transition);
}

/* HERO */
.hero {
    min-height: 100vh; display: flex; align-items: center;
    padding: 120px 24px 80px;
}
.hero-grid {
    max-width: var(--max-w); margin: 0 auto; width: 100%;
    display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center;
}
.hero-tag {
    font-size: 0.82rem; font-weight: 600; color: var(--accent);
    letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px;
}
.hero h1 {
    font-family: var(--font); font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700; line-height: 1.1; letter-spacing: -1px; margin-bottom: 20px;
}
.hero-desc {
    font-size: 1.05rem; color: var(--text-dim); max-width: 500px; margin-bottom: 32px;
}
.hero-btns { display: flex; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 12px 28px; font-size: 0.88rem; font-weight: 600;
    border-radius: 50px; transition: var(--transition); font-family: var(--font);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--border); color: var(--text-dim); }
.btn-ghost:hover { border-color: var(--text-dim); color: var(--text); }
.btn-full { width: 100%; justify-content: center; }

.hero-stats { display: flex; gap: 40px; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: var(--font); font-size: 1.4rem; font-weight: 700; color: var(--text); }
.stat-label { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

.hero-visual { display: flex; justify-content: center; }
.hero-img {
    width: 320px; height: 400px; object-fit: cover;
    border-radius: var(--radius); border: 2px solid var(--border);
}
.hero-placeholder {
    width: 320px; height: 400px; border-radius: var(--radius);
    background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
    border: 2px solid var(--border);
    display: flex; align-items: center; justify-content: center;
}
.hero-placeholder span {
    font-family: var(--font); font-size: 4rem; font-weight: 700;
    color: var(--text-muted); opacity: 0.3;
}

/* SECTIONS */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-card); }
.section-label {
    font-size: 0.72rem; font-weight: 600; color: var(--accent);
    letter-spacing: 3px; text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
    font-family: var(--font); font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700; letter-spacing: -0.5px; margin-bottom: 8px;
}
.section-desc { color: var(--text-dim); font-size: 1rem; max-width: 500px; margin-bottom: 48px; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; }
.about-text h2 {
    font-family: var(--font); font-size: 2rem; font-weight: 700;
    margin-bottom: 20px; letter-spacing: -0.5px;
}
.about-text p { color: var(--text-dim); margin-bottom: 16px; font-size: 0.95rem; }
.about-skills h3 {
    font-family: var(--font); font-size: 0.82rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted);
    margin-bottom: 12px;
}
.skills-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.skill {
    padding: 6px 14px; font-size: 0.78rem; font-weight: 500;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 50px; color: var(--text-dim);
}
.skill-alt { background: transparent; border-color: var(--accent); color: var(--accent); }

/* PROJECTS */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.project-card {
    background: var(--bg-elevated); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden; transition: var(--transition);
}
.project-card:hover { transform: translateY(-4px); border-color: #333; box-shadow: var(--shadow); }
.project-card.featured { border-color: var(--accent); }
.project-img { height: 200px; overflow: hidden; background: var(--bg); }
.project-img img { width: 100%; height: 100%; object-fit: cover; }
.project-img-placeholder {
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
}
.project-img-placeholder span {
    font-family: var(--font); font-size: 2.5rem; font-weight: 700;
    color: var(--accent); opacity: 0.4;
}
.project-body { padding: 24px; }
.project-logo { height: 28px; width: auto; margin-bottom: 12px; filter: brightness(0) invert(0.8); }
.project-body h3 {
    font-family: var(--font); font-size: 1.2rem; font-weight: 600;
    margin-bottom: 8px; color: var(--text);
}
.project-body p { font-size: 0.88rem; color: var(--text-dim); margin-bottom: 16px; line-height: 1.6; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.project-tech span {
    padding: 3px 10px; font-size: 0.7rem; font-weight: 500;
    background: rgba(79,156,247,0.1); color: var(--accent);
    border-radius: 50px;
}
.project-link {
    font-size: 0.85rem; font-weight: 600; color: var(--accent);
    display: inline-flex; align-items: center; gap: 4px;
}
.project-link:hover { gap: 8px; }

/* SERVICES */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.service-card {
    padding: 32px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); transition: var(--transition);
}
.service-card:hover { border-color: #333; transform: translateY(-2px); }
.service-icon { font-size: 2rem; margin-bottom: 16px; }
.service-card h3 {
    font-family: var(--font); font-size: 1.05rem; font-weight: 600;
    margin-bottom: 8px; color: var(--text);
}
.service-card p { font-size: 0.85rem; color: var(--text-dim); line-height: 1.7; }

/* INSTAGRAM */
.ig-handle {
    display: inline-block; color: var(--accent); font-weight: 500;
    margin-bottom: 32px;
}
.ig-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.ig-item {
    aspect-ratio: 1; border-radius: var(--radius-sm); overflow: hidden; position: relative;
}
.ig-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.ig-item:hover img { transform: scale(1.06); }
.ig-overlay {
    position: absolute; inset: 0; background: rgba(79,156,247,0.15);
    opacity: 0; transition: var(--transition);
}
.ig-item:hover .ig-overlay { opacity: 1; }

/* TESTIMONIALS */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.testimonial-card {
    padding: 28px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius);
}
.testimonial-text { font-size: 0.92rem; color: var(--text-dim); margin-bottom: 20px; line-height: 1.8; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.testimonial-author strong { display: block; font-size: 0.88rem; color: var(--text); }
.testimonial-author span { font-size: 0.75rem; color: var(--text-muted); }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info { display: flex; flex-direction: column; gap: 24px; padding-top: 8px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.ci-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 2px; }
.contact-item strong {
    display: block; font-size: 0.72rem; text-transform: uppercase;
    letter-spacing: 1px; color: var(--text-muted); margin-bottom: 2px;
}
.contact-item a { color: var(--text-dim); font-size: 0.92rem; }
.contact-item a:hover { color: var(--accent); }

.contact-form { display: flex; flex-direction: column; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; }
.contact-form input, .contact-form textarea {
    width: 100%; padding: 12px 16px; font-size: 0.88rem;
    font-family: var(--font-body); background: var(--bg-elevated);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    color: var(--text); transition: var(--transition);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,156,247,0.1);
}
.contact-form textarea { resize: vertical; min-height: 120px; }

.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 500; }
.alert-ok { background: rgba(74,222,128,0.1); color: var(--green); border: 1px solid rgba(74,222,128,0.2); }
.alert-err { background: rgba(239,68,68,0.1); color: #ef4444; border: 1px solid rgba(239,68,68,0.2); }

/* FOOTER */
.footer {
    padding: 32px 0; border-top: 1px solid var(--border);
}
.footer-inner {
    display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
}
.footer-brand { font-family: var(--font); font-size: 1.2rem; font-weight: 700; color: var(--text); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.82rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }
.footer p { font-size: 0.75rem; color: var(--text-muted); }

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; text-align: center; }
    .hero-desc { margin: 0 auto 32px; }
    .hero-btns { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { order: -1; }
    .hero-img, .hero-placeholder { width: 220px; height: 280px; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed; top: 0; right: -100%; width: 260px; height: 100vh;
        background: var(--bg-card); flex-direction: column;
        padding: 100px 32px 40px; gap: 20px;
        transition: var(--transition); border-left: 1px solid var(--border);
    }
    .nav-links.active { right: 0; }
    .nav-links a { font-size: 1rem; color: var(--text); }

    .section { padding: 60px 0; }
    .projects-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; text-align: center; }
}

/* ANIMATIONS */
.fade-in {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }