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

:root {
    --bg: #f8f7f4;
    --surface: #ffffff;
    --ink: #1a1a18;
    --ink-muted: #6b6b60;
    --ink-faint: #b8b8ae;
    --accent: #2d5a3d;
    --accent-light: #e8f0eb;
    --accent-warm: #c8a96e;
    --border: #e5e4de;
    --mono: 'DM Mono', monospace;
    --serif: 'DM Serif Display', serif;
    --sans: 'DM Sans', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 3rem;
    background: rgba(248, 247, 244, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: var(--mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.05em;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink-muted);
    letter-spacing: 0.03em;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--ink);
}

/* ── HERO ── */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 3rem;
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.6s ease 0.1s forwards;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 2rem;
    height: 1px;
    background: var(--accent);
}

.hero-name {
    font-family: var(--serif);
    font-size: clamp(3rem, 6vw, 5.5rem);
    line-height: 1.05;
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.6s ease 0.25s forwards;
}

.hero-name em {
    font-style: italic;
    color: var(--accent);
}

.hero-bio {
    font-size: 1.05rem;
    color: var(--ink-muted);
    line-height: 1.75;
    max-width: 480px;
    margin-bottom: 2.5rem;
    font-weight: 300;
    opacity: 0;
    animation: fadeUp 0.6s ease 0.4s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.6s ease 0.55s forwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--ink);
    color: var(--bg);
    padding: 0.8rem 1.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
    background: var(--accent);
    transform: translateY(-1px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border);
    color: var(--ink);
    padding: 0.8rem 1.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: border-color 0.2s, color 0.2s, transform 0.15s;
}

.btn-ghost:hover {
    border-color: var(--ink);
    transform: translateY(-1px);
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.5s forwards;
}

.circuit-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    width: 340px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.circuit-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(0deg, transparent, transparent 19px, var(--border) 19px, var(--border) 20px),
        repeating-linear-gradient(90deg, transparent, transparent 19px, var(--border) 19px, var(--border) 20px);
    opacity: 0.4;
}

.card-inner {
    position: relative;
    z-index: 1;
}

.card-tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.card-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.metric {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.85rem;
}

.metric-num {
    font-family: var(--serif);
    font-size: 1.6rem;
    color: var(--ink);
    line-height: 1;
    margin-bottom: 0.2rem;
}

.metric-label {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--ink-muted);
    letter-spacing: 0.08em;
}

.card-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.chip {
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 500;
    padding: 0.3rem 0.65rem;
    border-radius: 100px;
    letter-spacing: 0.05em;
    background: var(--accent-light);
    color: var(--accent);
}

.chip.warm {
    background: #f5eddd;
    color: #8a6934;
}

.hero-bg-dot {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(45, 90, 61, 0.06) 0%, transparent 70%);
    top: 50%;
    left: 60%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* ── SECTION BASE ── */
section {
    padding: 7rem 3rem;
}

.section-max {
    max-width: 1100px;
    margin: 0 auto;
}

.section-label {
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.section-label::after {
    content: '';
    flex: 1;
    max-width: 3rem;
    height: 1px;
    background: var(--accent);
    opacity: 0.4;
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.section-sub {
    font-size: 1rem;
    color: var(--ink-muted);
    font-weight: 300;
    max-width: 540px;
    line-height: 1.75;
}

/* ── ABOUT ── */
#about {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 5rem;
    align-items: start;
}

.about-para {
    font-size: 1rem;
    color: var(--ink-muted);
    line-height: 1.85;
    font-weight: 300;
    margin-bottom: 1.25rem;
}

.about-para strong {
    color: var(--ink);
    font-weight: 500;
}

.about-facts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 2rem;
}

.fact {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    background: var(--bg);
}

.fact-key {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--ink-faint);
    letter-spacing: 0.1em;
    margin-bottom: 0.3rem;
}

.fact-val {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ink);
}

/* ── PROJECTS ── */
.projects-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow 0.25s, transform 0.2s;
    cursor: default;
}

.project-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
}

.project-card.featured {
    grid-column: span 2;
}

.project-thumb {
    height: 180px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-card.featured .project-thumb {
    height: 220px;
}

.thumb-pattern {
    position: absolute;
    inset: 0;
}

.thumb-icon {
    font-size: 2.5rem;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.project-body {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.project-tag {
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.55rem;
    border-radius: 100px;
    background: var(--accent-light);
    color: var(--accent);
    text-transform: uppercase;
}

.project-title {
    font-family: var(--serif);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    line-height: 1.25;
}

.project-desc {
    font-size: 0.875rem;
    color: var(--ink-muted);
    line-height: 1.7;
    font-weight: 300;
}

/* ── SKILLS ── */
#skills {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.skills-layout {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    gap: 5rem;
    align-items: start;
}

.skills-groups {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 3rem;
}

.skill-group-title {
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--ink-muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.skill-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.skill-name {
    font-size: 0.9rem;
    font-weight: 400;
}

.skill-bar-wrap {
    width: 120px;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    transform-origin: left;
    animation: growBar 1s ease forwards;
}

.tools-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-content: flex-start;
}

.tool-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.55rem 0.9rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--ink-muted);
    transition: border-color 0.2s, color 0.2s, background 0.2s;
    cursor: default;
}

.tool-pill:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
}

.tool-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.5;
}

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

.contact-inner {
    max-width: 620px;
    margin: 0 auto;
}

.contact-title {
    font-family: var(--serif);
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.contact-sub {
    font-size: 1rem;
    color: var(--ink-muted);
    font-weight: 300;
    line-height: 1.75;
    margin-bottom: 3rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: center;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--ink);
    font-size: 0.9rem;
    padding: 1rem 2rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 100%;
    max-width: 380px;
    transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.contact-link:hover {
    border-color: var(--accent);
    background: var(--accent-light);
    transform: translateX(4px);
}

.contact-link-icon {
    font-size: 1.1rem;
    width: 2rem;
    text-align: center;
}

.contact-link-text {
    flex: 1;
    text-align: left;
}

.contact-link-label {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--ink-faint);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: block;
}

.contact-link-value {
    font-size: 0.9rem;
    font-weight: 500;
}

.contact-arrow {
    color: var(--ink-faint);
    font-size: 0.8rem;
}

/* ── FOOTER ── */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--mono);
    font-size: 0.72rem;
    color: var(--ink-faint);
}

footer a {
    color: var(--ink-faint);
    text-decoration: none;
}

footer a:hover {
    color: var(--ink-muted);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes growBar {
    from {
        transform: scaleX(0);
    }

    to {
        transform: scaleX(1);
    }
}

/* ── SCROLL REVEAL ── */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    section {
        padding: 5rem 1.5rem;
    }

    #hero {
        padding: 0 1.5rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        justify-content: center;
    }

    .circuit-card {
        width: 100%;
        max-width: 340px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .project-card.featured {
        grid-column: span 1;
    }

    .skills-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    footer {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
}