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

:root {
    --bg-primary: #0a0b0f;
    --bg-secondary: #111318;
    --bg-card: #16191f;
    --bg-card-hover: #1c2028;
    --border: #2a303a;
    --border-hover: #3d4c55;

    --accent: #386992;
    --accent-light: #8fceff;
    --accent-glow: rgba(106, 213, 255, 0.15);
    --accent-glow-strong: rgba(106, 203, 255, 0.3);

    --green: #3ddc84;
    --green-glow: rgba(61, 220, 132, 0.15);

    --text-primary: #f0f0f8;
    --text-secondary: #9090b0;
    --text-muted: #55556a;

    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.25s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   SCROLLBAR
============================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ============================================
   LAYOUT
============================================ */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 80px 0;
}

/* ============================================
   NOISE OVERLAY
============================================ */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}

/* ============================================
   HEADER / NAV
============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 16px 0;
    transition: background var(--transition), border-color var(--transition);
    border-bottom: 1px solid transparent;
}

header.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--border);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.logo-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
}

nav ul a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

nav ul a:hover,
nav ul a.active {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-cta {
    background: var(--accent) !important;
    color: white !important;
    padding: 6px 14px !important;
}

.nav-cta:hover {
    background: var(--accent-light) !important;
}

/* Mobile nav */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
}

.mobile-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 15, 0.98);
    z-index: 99;
    flex-direction: column;
    padding: 24px 32px 40px;
    backdrop-filter: blur(12px);
}

.mobile-nav.active {
    display: flex;
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 48px;
}

.mobile-close {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition), color var(--transition);
}

.mobile-close:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 1.6rem;
    font-weight: 700;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    transition: color var(--transition);
    letter-spacing: -0.02em;
}

.mobile-nav-links a:hover {
    color: var(--text-primary);
}

.mn-num {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 400;
    width: 24px;
}

.mobile-nav-footer {
    padding-top: 24px;
}

.mn-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    transition: color var(--transition);
}

.mn-github:hover {
    color: var(--accent);
}

.mn-github svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   HERO
============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -100px;
    right: -150px;
    opacity: 0.08;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--green);
    bottom: 50px;
    left: -100px;
    opacity: 0.06;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px 14px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    font-family: var(--font-mono);
}

.hero-badge .dot {
    width: 7px;
    height: 7px;
    background: var(--green);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-title .name {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .subtitle {
    color: var(--text-secondary);
    font-size: 0.55em;
    font-weight: 500;
    display: block;
    margin-top: 8px;
    letter-spacing: -0.02em;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-desc strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ============================================
   BUTTONS
============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn svg {
    width: 16px;
    height: 16px;
}

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

.btn-primary:hover {
    background: var(--accent-light);
    box-shadow: 0 0 30px var(--accent-glow-strong);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: var(--bg-card);
}

/* ============================================
   SECTION HEADERS
============================================ */
.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-label::before {
    content: '//';
    color: var(--text-muted);
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 560px;
    line-height: 1.7;
}

.section-proj-desc {
    max-width: 1000px;
}

.section-header {
    margin-bottom: 48px;
}

/* ============================================
   ABOUT SECTION
============================================ */
#about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

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

.about-text p:last-child {
    margin-bottom: 0;
}

.about-text strong {
    color: var(--text-primary);
    font-weight: 600;
}

.highlight-green {
    color: var(--green);
    font-weight: 600;
}

.highlight-accent {
    color: var(--accent-light);
    font-weight: 600;
}

/* ============================================
   ABOUT AVATAR
============================================ */
.about-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-avatar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.avatar-wrapper {
    position: relative;
    width: 180px;
    height: 180px;
}

.avatar-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
    transition: border-color var(--transition);
    display: block;
}

.avatar-wrapper:hover .avatar-img {
    border-color: var(--accent);
}

.avatar-ring {
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: conic-gradient(var(--accent), var(--green), var(--accent));
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition);
    animation: spin 4s linear infinite;
}

.avatar-wrapper:hover .avatar-ring {
    opacity: 1;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.avatar-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.avatar-role {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    text-align: center;
    line-height: 1.6;
}

/* ============================================
   INFO ITEMS (skills, etc)
============================================ */
.info-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: border-color var(--transition), background var(--transition);
}

.info-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.info-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon svg {
    width: 18px;
    height: 18px;
}

.info-icon.green { background: var(--green-glow); color: var(--green); }
.info-icon.accent { background: var(--accent-glow); color: var(--accent-light); }
.info-icon.purple { background: rgba(124, 106, 255, 0.15); color: #9d8fff; }
.info-icon.orange { background: rgba(251, 146, 60, 0.12); color: #fb923c; }

.info-content {
    flex: 1;
}

.info-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.info-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ============================================
   PROJECT CARDS
============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--green));
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card.featured {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: center;
    gap: 32px;
}

.project-logo {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.project-logo svg {
    width: 24px;
    height: 24px;
}

.project-logo.accent {
    background: linear-gradient(135deg, #6abaff22, #6abaff44);
    border: 1px solid #6ac8ff44;
    color: var(--accent-light);
}

.project-logo.purple {
    background: linear-gradient(135deg, #7c6aff22, #7c6aff44);
    border: 1px solid #7c6aff44;
    color: #9d8fff;
}

.project-logo.green {
    background: linear-gradient(135deg, #3ddc8422, #3ddc8444);
    border: 1px solid #3ddc8444;
    color: var(--green);
}

.project-logo.orange {
    background: linear-gradient(135deg, #fb923c22, #fb923c44);
    border: 1px solid #fb923c44;
    color: #fb923c;
}

.project-body { flex: 1; }

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.project-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.project-card.featured .project-name {
    font-size: 1.2rem;
}

.project-badge {
    font-size: 0.7rem;
    font-weight: 600;
    font-family: var(--font-mono);
    padding: 3px 8px;
    border-radius: 100px;
}

.badge-accent {
    background: var(--accent-glow);
    color: var(--accent-light);
    border: 1px solid #7c6aff44;
}

.badge-purple {
    background: rgba(124, 106, 255, 0.15);
    color: #9d8fff;
    border: 1px solid #7c6aff44;
}

.badge-green {
    background: var(--green-glow);
    color: var(--green);
    border: 1px solid #3ddc8444;
}

.badge-orange {
    background: rgba(251, 146, 60, 0.12);
    color: #fb923c;
    border: 1px solid #fb923c44;
}

.project-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.tag {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 3px 7px;
}

.project-arrow {
    color: var(--text-muted);
    transition: color var(--transition), transform var(--transition);
    flex-shrink: 0;
}

.project-card:hover .project-arrow {
    color: var(--accent);
    transform: translate(3px, -3px);
}

/* ============================================
   DIVIDER
============================================ */
.divider {
    height: 1px;
    background: var(--border);
    margin: 0;
}

/* ============================================
   FOOTER
============================================ */
footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

footer p {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-family: var(--font-mono);
}

footer span {
    color: var(--accent-light);
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

footer a:hover {
    color: var(--accent-light);
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 768px) {
    section { padding: 60px 0; }
    nav ul { display: none; }
    .mobile-menu-btn { display: flex; }
    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .projects-grid { grid-template-columns: 1fr; }
    .project-card.featured { flex-direction: column; gap: 16px; }
    .hero-title { font-size: 2.4rem; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; }
    .btn { justify-content: center; }
}