/* ===== CSS Variables ===== */
:root {
    --bg-primary: #060606;
    --bg-secondary: #0c0c0c;
    --bg-card: #141414;
    --bg-card-hover: #1a1a1a;
    --text-primary: #f0f0f0;
    --text-secondary: #888888;
    --accent: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.3);
    --accent2: #7c4dff;
    --accent2-glow: rgba(124, 77, 255, 0.3);
    --border: #222222;
    --border-light: #2a2a2a;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

/* ===== Section Shared ===== */
section { padding: 100px 0; }

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent);
    margin: 14px auto 0;
    border-radius: 2px;
    box-shadow: 0 0 12px var(--accent-glow);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 56px;
}

.highlight { color: var(--accent); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #000;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    box-shadow: 0 0 32px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(0, 229, 255, 0.05);
}

.btn-sm { padding: 8px 16px; font-size: 0.82rem; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    backdrop-filter: blur(16px);
    background: rgba(6, 6, 6, 0.85);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.nav-logo .dot { color: var(--accent); }

.nav-menu { display: flex; gap: 28px; }

.nav-menu a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--accent);
    transition: width var(--transition);
    box-shadow: 0 0 8px var(--accent-glow);
}

.nav-menu a:hover { color: var(--text-primary); }
.nav-menu a:hover::after { width: 100%; }
.nav-menu a.active { color: var(--accent); }
.nav-menu a.active::after { width: 100%; }

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
}

/* ===== Page Header (shared) ===== */
.page-header {
    padding: 120px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(0, 229, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 60%, rgba(124, 77, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(0, 229, 255, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 700px; }

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero-name {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -2px;
    color: var(--text-primary);
    -webkit-text-stroke: 1px var(--border-light);
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.hero-tagline {
    font-size: 1.2rem;
    font-family: var(--font-mono);
    color: var(--accent);
    margin-bottom: 20px;
    min-height: 28px;
}

.cursor { animation: blink 0.8s infinite; color: var(--accent); }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.hero-socials {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.hero-socials a {
    width: 42px; height: 42px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.hero-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
    transform: translateY(-2px);
}

/* ===== About ===== */
.about { background: var(--bg-secondary); }

.about-content {
    max-width: 1000px;
    margin: 48px auto 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.8;
}

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

.about-image {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(0.85) contrast(1.1);
    transition: filter var(--transition);
}

.about-image:hover img { filter: brightness(1) contrast(1); }

.about-intro {
    text-align: center;
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.about-practices {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.about-practices span {
    background: rgba(0, 229, 255, 0.08);
    border: 1px solid rgba(0, 229, 255, 0.2);
    color: var(--accent);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.about-quote {
    border-left: 3px solid var(--accent);
    padding: 16px 24px;
    margin-top: 8px;
    background: rgba(0, 229, 255, 0.03);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.about-quote em {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.8;
}

/* ===== Projects ===== */
.projects { background: var(--bg-primary); }

/* Featured Project */
.project-featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 32px;
    transition: border-color var(--transition);
}

.project-featured:hover { border-color: var(--accent); }

.project-featured-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-badge {
    display: inline-block;
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
    width: fit-content;
}

.project-badge.small { padding: 3px 10px; font-size: 0.65rem; }

.project-featured-content h3 { font-size: 1.8rem; margin-bottom: 12px; }

.project-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.project-tags span {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    border: 1px solid var(--border);
}

.project-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.project-featured-visual {
    min-height: 320px;
    display: flex;
}

.visual-placeholder {
    width: 100%;
    background: linear-gradient(135deg, #0a0a0a, #111, #0a0a0a);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--border-light);
}

.visual-placeholder i { font-size: 3rem; color: var(--accent); opacity: 0.3; }
.visual-placeholder span { font-size: 0.8rem; color: var(--text-secondary); }

/* Project Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

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

.project-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.project-img { height: 180px; overflow: hidden; }

.project-img-placeholder {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--accent);
    opacity: 0.4;
}

.project-info { padding: 24px; }

.project-info h3 { font-size: 1.15rem; margin: 10px 0 8px; }

.project-info p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 14px;
    line-height: 1.6;
}

.project-info .project-tags { margin-bottom: 18px; }
.project-info .project-actions { gap: 8px; }

/* ===== Instagram ===== */
.instagram { background: var(--bg-primary); }

.instagram-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 40px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.ig-profile { display: flex; align-items: center; gap: 16px; }

.ig-avatar {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    flex-shrink: 0;
}

.ig-info h3 { font-size: 1.05rem; }
.ig-info p { font-size: 0.85rem; color: var(--text-secondary); }

.instagram-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}

.ig-item {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 4px;
}

.ig-placeholder {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.ig-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    opacity: 0;
    transition: opacity var(--transition);
}

.ig-item:hover .ig-overlay { opacity: 1; }
.ig-item:hover .ig-placeholder { transform: scale(1.05); }
.ig-item:hover img { transform: scale(1.05); }

.ig-item--loaded img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition);
}

.ig-item--fallback {
    display: none;
}

/* ===== Contact ===== */
.contact { background: var(--bg-secondary); }

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    margin-top: 48px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.contact-item i {
    width: 44px; height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-item h4 { font-size: 0.95rem; margin-bottom: 2px; }
.contact-item p { color: var(--text-secondary); font-size: 0.88rem; }

.contact-form { display: flex; flex-direction: column; gap: 14px; }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.05);
}

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

.contact-form .btn { align-self: flex-start; }

/* ===== Footer ===== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 48px 0 32px;
    text-align: center;
}

.footer-brand { margin-bottom: 24px; }

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.footer-logo .dot { color: var(--accent); }

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-top: 6px;
}

.footer-cv {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    font-size: 0.85rem;
    color: var(--accent);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.footer-cv:hover {
    border-color: var(--accent);
    background: rgba(0, 229, 255, 0.05);
    box-shadow: 0 0 12px var(--accent-glow);
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.footer-socials a {
    width: 38px; height: 38px;
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.footer-socials a:hover { color: var(--accent); border-color: var(--accent); }

.footer-copy {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.footer-copy i { color: var(--accent2); font-size: 0.7rem; }

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 42px; height: 42px;
    background: var(--accent);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 900;
    box-shadow: 0 0 20px var(--accent-glow);
}

.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-3px); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .project-featured {
        grid-template-columns: 1fr;
    }
    .project-featured-visual { min-height: 200px; }
    .contact-content { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    section { padding: 70px 0; }

    .nav-menu {
        position: fixed;
        top: 70px; left: 0; width: 100%;
        background: rgba(6, 6, 6, 0.95);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        gap: 0;
        padding: 20px 0;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform var(--transition);
    }
    .nav-menu.open { transform: translateY(0); }
    .nav-menu a { display: block; padding: 14px 0; font-size: 1.05rem; }
    .nav-toggle { display: block; }

    .about-content { grid-template-columns: 1fr; gap: 24px; }

    .hero-name { font-size: 2.4rem; -webkit-text-stroke: 0; }
    .hero-tagline { font-size: 1rem; }

    .projects-grid { grid-template-columns: 1fr; }

    .instagram-grid { grid-template-columns: repeat(2, 1fr); }

    .project-featured-content { padding: 28px; }
}

@media (max-width: 480px) {
    .hero-name { font-size: 1.9rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-buttons .btn { width: 100%; justify-content: center; }

    .instagram-grid { grid-template-columns: 1fr 1fr; }

    .project-actions { flex-direction: column; }
    .project-actions .btn { width: 100%; justify-content: center; }

    .instagram-cta { flex-direction: column; text-align: center; }
}