:root {
    --bg: #0a0e13;
    --bg-alt: #0f151c;
    --surface: #131a22;
    --surface-hover: #171f28;
    --border: #232d38;
    --text: #e7edf3;
    --text-dim: #93a1b0;
    --accent: #2dd4bf;
    --accent-soft: rgba(45, 212, 191, 0.12);
    --accent-10: rgba(45, 212, 191, 0.10);
    --accent-18: rgba(45, 212, 191, 0.18);
    --gold: #d9b774;
    --gold-06: rgba(217, 183, 116, 0.06);
    --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
    --text-accent: #06110f;
    --transition-fast: 0.2s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.3s ease;
    --transition-slower: 0.35s ease;
    --radius-sm: 6px;
    --radius-md: 9px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

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

::selection {
    background: var(--accent-soft);
    color: var(--accent);
}

.bg-glow {
    position: fixed;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(700px circle at 15% -5%, var(--accent-10), transparent 55%),
        radial-gradient(600px circle at 100% 20%, var(--gold-06), transparent 50%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px clamp(20px, 6vw, 72px);
    background: rgba(10, 14, 19, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base), background var(--transition-base);
}

header.scrolled {
    border-bottom-color: var(--border);
    background: rgba(10, 14, 19, 0.88);
}


.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.35rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .mark {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent), #1a8f7f);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-accent);
    font-weight: 700;
    font-size: 1.05rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: clamp(20px, 3vw, 40px);
}

nav a {
    font-size: 0.95rem;
    color: var(--text-dim);
    position: relative;
    padding: 4px 0;
    transition: color var(--transition-base);
}

nav a:hover {
    color: var(--text);
}

nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition-base);
}

nav a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: var(--radius-sm);
    transition: transform var(--transition-base), opacity var(--transition-base);
}

section {
    padding: 140px clamp(20px, 6vw, 72px) 100px;
    max-width: 1180px;
    margin: 0 auto;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.eyebrow::before {
    content: '';
    width: 26px;
    height: 1px;
    background: var(--accent);
}

/* Hero */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 120px;
}

#hero h1 {
    font-size: clamp(2.6rem, 7vw, 5.2rem);
    line-height: 1.05;
    margin-bottom: 22px;
}

#hero h1 .accent {
    color: var(--accent);
    font-style: italic;
}

#hero p {
    max-width: 560px;
    color: var(--text-dim);
    font-size: 1.15rem;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px -10px rgba(45, 212, 191, 0.5);
}

.btn-ghost {
    border-color: var(--border);
    color: var(--text);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.scroll-cue {
    position: absolute;
    bottom: 42px;
    left: clamp(20px, 6vw, 72px);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dim);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.scroll-cue .line {
    width: 40px;
    height: 1px;
    background: var(--text-dim);
    position: relative;
    overflow: hidden;
}

.scroll-cue .line::after {
    content: '';
    position: absolute;
    left: -40px;
    top: 0;
    width: 40px;
    height: 1px;
    background: var(--accent);
    animation: slide 2.2s ease-in-out infinite;
}

@keyframes slide {
    0% {
        left: -40px;
    }

    50% {
        left: 100%;
    }

    100% {
        left: 100%;
    }
}

/* Section heading */
.section-head {
    margin-bottom: 54px;
}

.section-head h2 {
    font-size: clamp(1.9rem, 4vw, 2.6rem);
}

/* About */
#about .about-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 56px;
    align-items: start;
}

.avatar {
    width: 220px;
    height: 220px;
    border-radius: var(--radius-lg);
    background: linear-gradient(160deg, var(--surface), var(--bg-alt));
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 5.5rem;
    color: var(--accent);
    position: relative;
    overflow: hidden;
}

.avatar::before {
    content: '';
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at 30% 20%, var(--accent-18), transparent 60%);
    pointer-events: none;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

#about p {
    color: var(--text-dim);
    margin-bottom: 18px;
    max-width: 640px;
}

#about .about-grid > div:last-child {
    max-width: 74ch;
}

#about p strong {
    color: var(--text);
    font-weight: 500;
}

#stations .stations-grid {
    display: grid;
    gap: 14px;
}

#stations .company-list-title {
    margin-bottom: 14px;
    color: var(--text-dim);
    font-size: 1.02rem;
}

#stations .company-timeline {
    list-style: none;
    margin: 0 0 26px;
    padding: 0 0 0 28px;
    max-width: 100%;
    display: grid;
    grid-auto-flow: row;
    gap: 14px;
    position: relative;
    overflow-x: visible;
}

#stations .company-timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    right: auto;
    top: 0;
    bottom: 0;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, rgba(45, 212, 191, 0.2), rgba(45, 212, 191, 0.75), rgba(45, 212, 191, 0.2));
}

#stations .timeline-stop {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 16px 14px;
    min-height: 140px;
    transition: border-color var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

#stations .timeline-stop:hover {
    transform: translateY(-2px);
    border-color: rgba(45, 212, 191, 0.34);
    background: var(--surface-hover);
}

#stations .timeline-stop::before {
    content: '';
    position: absolute;
    top: 22px;
    left: -30px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.16);
}

#stations .timeline-years {
    display: inline-block;
    margin-bottom: 8px;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

#stations .timeline-stop h3 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0;
    margin-bottom: 10px;
}

#stations .timeline-highlight {
    display: inline-block;
    margin: 0 0 10px;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(45, 212, 191, 0.35);
    background: rgba(45, 212, 191, 0.12);
    color: var(--accent);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

#stations .timeline-stop p {
    margin-bottom: 0;
    font-size: 0.9rem;
    line-height: 1.55;
}

#stations .mini-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

#stations .mini-tags .tag {
    padding: 5px 10px;
    font-size: 0.72rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.tag {
    padding: 8px 16px;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-dim);
    transition: border-color var(--transition-base), color var(--transition-base);
}

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

/* Projects */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 26px;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-slow), border-color var(--transition-slow), background var(--transition-slow);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(45, 212, 191, 0.75), transparent);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(45, 212, 191, 0.4);
    background: var(--surface-hover);
}

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

.project-card .num {
    font-family: 'Playfair Display', serif;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 18px;
    display: block;
}

.project-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    line-height: 1.25;
}

.project-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 20px;
    min-height: 72px;
}

.project-card img {
    max-width: 100%;
    object-fit: contain;
    margin: 12px 0;
    opacity: 0.9;
}


.project-card .stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-card .stack span {
    font-size: 0.72rem;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-alt);
    color: var(--text-dim);
    border: 1px solid var(--border);
}

/* Contact */
#contact {
    text-align: center;
}

#contact .section-head {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#contact .eyebrow::before {
    display: none;
}

#contact p {
    color: var(--text-dim);
    max-width: 520px;
    margin: 0 auto 40px;
    font-size: 1.02rem;
}

.contact-email {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    color: var(--text);
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    transition: color var(--transition-base), border-color var(--transition-base);
}

.contact-email:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.socials {
    display: flex;
    justify-content: center;
    gap: 18px;
    margin-top: 40px;
}

.socials a {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    transition: all var(--transition-base);
}

.socials a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
}

.socials svg {
    width: 19px;
    height: 19px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

footer {
    padding: 32px clamp(20px, 6vw, 72px);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 12px;
}

footer .back-top {
    color: var(--text-dim);
    transition: color var(--transition-fast);
}

footer .back-top:hover {
    color: var(--accent);
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 200;
    background: var(--accent);
    color: var(--text-accent);
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 16px;
}

.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(6, 10, 15, 0.62);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-slow);
    z-index: 95;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: var(--radius-sm);
}

@media (max-width: 760px) {
    body.nav-open {
        overflow: hidden;
    }

    body.nav-open .nav-overlay {
        opacity: 1;
        pointer-events: auto;
    }

    nav ul {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: min(78vw, 320px);
        background: var(--bg-alt);
        border-left: 1px solid var(--border);
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        padding: 40px;
        gap: 28px;
        transform: translateX(100%);
        transition: transform 0.35s ease;
        z-index: 100;
    }

    nav ul.open {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

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

    #stations .timeline-stop {
        min-height: 0;
    }

    .avatar {
        width: 140px;
        height: 140px;
        font-size: 3.4rem;
    }

    footer {
        flex-direction: column;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}