/* === RESET & BASE === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --surface2: #1a1a1a;
    --border: #2a2a2a;
    --text: #ffffff;
    --text-dim: #888888;
    --accent: #ffffff;
    --accent-hover: #cccccc;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 3rem;
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    font-family: 'Courier New', monospace;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.nav-links { display: flex; gap: 2rem; }

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-dim);
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--text);
    transition: width 0.3s;
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

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

/* === HERO === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 3rem 4rem;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content { flex: 1; }

.hero-greeting {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-typing {
    font-family: 'Courier New', monospace;
    font-size: 1.3rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    min-height: 2rem;
}

.cursor {
    animation: blink 0.8s infinite;
    font-weight: 100;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-block;
    padding: 0.9rem 2.5rem;
    border: 1px solid var(--text);
    color: var(--bg);
    background: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background: transparent;
    color: var(--text);
}

/* Code window */
.hero-visual { flex: 1; display: flex; justify-content: center; }

.code-window {
    width: 100%;
    max-width: 460px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.code-header {
    display: flex;
    gap: 6px;
    padding: 12px 16px;
    background: var(--surface2);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.code-body {
    padding: 1.2rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.7;
    overflow-x: auto;
    color: #ccc;
}

.code-body .kw { color: #c678dd; }
.code-body .cls { color: #e5c07b; }
.code-body .fn { color: #61afef; }
.code-body .str { color: #98c379; }
.code-body .num { color: #d19a66; }
.code-body .cmt { color: #5c6370; }

/* === SECTIONS === */
.section {
    padding: 6rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Courier New', monospace;
    font-size: 1.6rem;
    margin-bottom: 3rem;
    text-align: center;
    letter-spacing: 2px;
    color: var(--text-dim);
}

/* === ABOUT === */
.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-dim);
    font-size: 1.05rem;
}

.about-text strong { color: var(--text); }

.about-stats { display: flex; flex-direction: column; gap: 1rem; }

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: border-color 0.3s;
}

.stat-card:hover { border-color: var(--text); }

.stat-icon { font-size: 1.5rem; }

.stat-label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    margin-left: auto;
    font-weight: 700;
}

/* === SKILLS === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skill-card {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
}

.skill-card:hover {
    border-color: var(--text);
    transform: translateY(-4px);
}

.skill-icon { font-size: 2.5rem; margin-bottom: 1rem; }

.skill-card h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.skill-bar {
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    width: 0;
    background: var(--text);
    border-radius: 2px;
    transition: width 1.5s ease;
}

/* === SERVICES === */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.service-card {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.service-card:hover::before { transform: scaleX(1); }
.service-card:hover { border-color: var(--text); }

.service-number {
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
}

.service-card p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* === CONTACT === */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-intro {
    color: var(--text-dim);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.contact-items { display: flex; flex-direction: column; gap: 1.5rem; }

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon { font-size: 1.5rem; }

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-value {
    font-size: 1.05rem;
    font-weight: 600;
    transition: opacity 0.3s;
}

a.contact-value:hover { opacity: 0.7; }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }

.form-group label {
    font-size: 0.8rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    padding: 0.9rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--text);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.contact-form .btn-primary { border: none; text-align: center; }

/* === FOOTER === */
.footer {
    padding: 2rem 3rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-content p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.footer-code {
    font-family: 'Courier New', monospace;
    margin-top: 0.5rem;
    font-size: 0.8rem !important;
}

/* === SCROLL ANIMATIONS === */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* === MOBILE === */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 5rem;
        gap: 2rem;
    }

    .hero-name { font-size: 2.4rem; }

    .hero-visual { display: none; }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10,10,10,0.95);
        padding: 1.5rem 3rem;
        border-bottom: 1px solid var(--border);
        gap: 1rem;
    }

    .nav-links.open { display: flex; }

    .burger { display: flex; }

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid,
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }

    .section { padding: 4rem 1.5rem; }
    .navbar { padding: 1rem 1.5rem; }
}

@media (max-width: 600px) {
    .skills-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

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