:root {
    --bg-base: #0a0a0f;
    --bg-surface: #101118;
    --bg-elevated: #151722;
    --bg-glass: rgba(16, 17, 24, 0.78);
    
    --border-subtle: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(16, 185, 129, 0.35);
    --border-accent: rgba(56, 189, 248, 0.3);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-emerald: #10b981;
    --accent-emerald-dim: rgba(16, 185, 129, 0.1);
    --accent-cyber: #38bdf8;
    --accent-cyber-dim: rgba(56, 189, 248, 0.1);

    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    --container-max: 1120px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-base);
    background-image: 
        radial-gradient(circle at 15% 0%, rgba(16, 185, 129, 0.05) 0%, transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(56, 189, 248, 0.04) 0%, transparent 45%),
        linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition), border-color var(--transition), background-color var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography & Utility */
.mono {
    font-family: var(--font-mono);
}

.section {
    padding: 88px 0;
    border-top: 1px solid var(--border-subtle);
}

.section-header {
    margin-bottom: 44px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.section-index {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent-emerald);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.section-index::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 1px;
    background-color: var(--accent-emerald);
}

.section-title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 620px;
}

/* Header & Navigation */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 68px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-wrapper {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    font-family: var(--font-mono);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-emerald);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.6);
}

.brand-alias {
    color: var(--text-muted);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Language Switcher */
.lang-switch {
    display: inline-flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 2px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    font-weight: 600;
    transition: all var(--transition);
}

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

.lang-btn.active {
    background: var(--bg-elevated);
    color: var(--accent-emerald);
    box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.25);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-base);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.12);
}

.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-subtle);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-secondary);
    border-color: var(--border-subtle);
}

.btn-outline:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.02);
}

.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 6px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 84px 0 76px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.35fr 0.85fr;
    gap: 48px;
    align-items: center;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: var(--accent-emerald-dim);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-emerald);
    margin-bottom: 20px;
}

.status-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--accent-emerald);
    animation: pulse 2.2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
}

.hero-title {
    font-size: clamp(2.1rem, 4vw, 3.1rem);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
}

.hero-role {
    font-family: var(--font-mono);
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    color: var(--accent-cyber);
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-lead {
    color: var(--text-secondary);
    font-size: 1.02rem;
    line-height: 1.65;
    max-width: 600px;
    margin-bottom: 30px;
}

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

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

/* Telemetry Strip */
.telemetry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding-top: 28px;
    border-top: 1px solid var(--border-subtle);
}

.telemetry-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.telemetry-val {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.telemetry-label {
    font-size: 0.76rem;
    color: var(--text-muted);
}

/* Hero Profile Card (Terminal / Specs) */
.profile-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

.profile-card-bar {
    padding: 10px 16px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
}

.profile-card-body {
    padding: 24px;
}

.profile-identity {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.profile-avatar {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-md);
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.14);
    flex-shrink: 0;
}

.profile-meta h2 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.profile-meta p {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent-emerald);
    margin-top: 2px;
}

.profile-meta .profile-loc {
    color: var(--text-muted);
    font-size: 0.76rem;
    margin-top: 4px;
}

.specs-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.spec-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 6px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
}

.spec-row:last-child {
    border-bottom: none;
}

.spec-key {
    color: var(--text-muted);
}

.spec-val {
    color: var(--text-primary);
    text-align: right;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.skill-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 26px;
    transition: border-color var(--transition), transform var(--transition);
}

.skill-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.skill-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.skill-card-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-icon {
    color: var(--accent-emerald);
    display: inline-flex;
}

.skill-code {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.skill-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    transition: border-color var(--transition), color var(--transition);
}

.tag-highlight {
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent-emerald);
    background: var(--accent-emerald-dim);
}

/* Timeline Section */
.timeline-controls {
    display: inline-flex;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 3px;
    margin-bottom: 32px;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
}

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

.filter-btn.active {
    background: var(--bg-elevated);
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px var(--border-subtle);
}

.timeline {
    position: relative;
    padding-left: 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: var(--border-subtle);
}

.timeline-item {
    position: relative;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 22px 26px;
    transition: border-color var(--transition);
}

.timeline-item:hover {
    border-color: rgba(255, 255, 255, 0.18);
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -27px;
    top: 28px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--bg-base);
    border: 2px solid var(--accent-emerald);
}

.timeline-item[data-category="education"]::before {
    border-color: var(--accent-cyber);
}

.timeline-top {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}

.timeline-role {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-primary);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-muted);
}

.timeline-org {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--accent-emerald);
    margin-bottom: 12px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.timeline-item[data-category="education"] .timeline-org {
    color: var(--accent-cyber);
}

.badge-type {
    font-size: 0.7rem;
    padding: 1px 7px;
    border-radius: 4px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.timeline-Waitlist, .timeline-points {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.timeline-points li {
    position: relative;
    padding-left: 16px;
}

.timeline-points li::before {
    content: "›";
    position: absolute;
    left: 0;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Projects & Platforms */
.platform-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-bottom: 18px;
}

.platform-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 18px;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.platform-card:hover {
    border-color: var(--accent-emerald);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.platform-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.platform-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
}

.platform-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.platform-card-sub {
    font-size: 0.86rem;
    color: var(--text-secondary);
}

.platform-card-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--text-primary);
    transition: all var(--transition);
}

.platform-card:hover .platform-card-cta {
    background: var(--accent-emerald-dim);
    border-color: rgba(16, 185, 129, 0.4);
    color: var(--accent-emerald);
}

.cta-arrow {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    transition: transform var(--transition);
}

.platform-card:hover .cta-arrow {
    transform: translate(2px, -2px);
}

.tech-projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 12px;
    transition: border-color var(--transition);
}

.project-card:hover {
    border-color: rgba(255, 255, 255, 0.18);
}

.project-header-inline {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.project-cat {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-emerald);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.project-desc {
    font-size: 0.86rem;
    color: var(--text-secondary);
}

/* Contact & Footer */
.contact-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px 36px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 28px;
}

.contact-direct {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.86rem;
}

.contact-label {
    color: var(--text-muted);
    min-width: 48px;
}

.contact-val {
    color: var(--text-primary);
}

.contact-val:hover {
    color: var(--accent-emerald);
}

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

.copy-btn {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 3px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition);
}

.copy-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-emerald);
}

.site-footer {
    padding: 32px 0;
    border-top: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-muted);
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 450ms ease, transform 450ms ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 960px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    .platform-cards-grid {
        grid-template-columns: 1fr;
    }
    .tech-projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--bg-surface);
        border-bottom: 1px solid var(--border-subtle);
        flex-direction: column;
        padding: 20px 24px;
        gap: 16px;
        align-items: flex-start;
    }
    .nav-links.open {
        display: flex;
    }
    .mobile-menu-btn {
        display: inline-flex;
    }
    .skills-grid {
        grid-template-columns: 1fr;
    }
    .telemetry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .section {
        padding: 64px 0;
    }
}

/* Hide injected hosting badges (Netlify, etc.) */
#nl-badge,
.nl-badge,
#nl-card,
.nl-card,
[id^="nl-"],
[class^="nl-"],
button[aria-label*="Netlify"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
}