:root {
    --bg: #fafaf8;
    --bg-alt: #f0efeb;
    --bg-contrast: #1a1a18;
    --bg-contrast-inset: #252523;
    --text: #1a1a18;
    --text-secondary: #5c5c57;
    --text-contrast: #e8e7e3;
    --text-contrast-secondary: #9a998f;
    --accent: #2d5a3d;
    --accent-soft: #6aad80;
    --border: #d8d7d2;
    --border-contrast: #333330;
    --nav-bg: rgba(250, 250, 248, 0.9);
    --btn-hover: #1e4a2e;
    --mono: "IBM Plex Mono", monospace;
    --serif: "IBM Plex Serif", serif;
    --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #141413;
        --bg-alt: #1c1c1a;
        --bg-contrast: #0a0a09;
        --bg-contrast-inset: #111110;
        --text: #e8e7e3;
        --text-secondary: #9a998f;
        --text-contrast: #e8e7e3;
        --text-contrast-secondary: #7a796f;
        --accent: #6aad80;
        --accent-soft: #8cc89e;
        --border: #2a2a28;
        --border-contrast: #222220;
        --nav-bg: rgba(20, 20, 19, 0.9);
        --btn-hover: #4a9060;
    }
}

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

body {
    font-family: var(--serif);
    font-size: 17px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* — NAV — */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 0 24px;
}

nav .nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 52px;
}

nav .nav-name {
    font-family: var(--mono);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--text);
    text-decoration: none;
}

nav .nav-links {
    display: flex;
    gap: 24px;
}

nav .nav-links a {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* — LAYOUT — */
.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 80px 0;
}

/* — HERO — */
.hero {
    padding-top: 120px;
    padding-bottom: 80px;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 48px;
}

.hero-text {
    flex: 1;
}

.hero-portrait {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: var(--bg-alt);
    border: 2px solid var(--border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    overflow: hidden;
}

.hero-portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-portrait .placeholder-label {
    font-family: var(--mono);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    opacity: 0.5;
}

.hero h1 {
    font-family: var(--serif);
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.hero .subtitle {
    font-size: 19px;
    color: var(--text-secondary);
    max-width: 520px;
    line-height: 1.6;
}

.hero .status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.02em;
    color: var(--text-secondary);
    background: var(--bg-alt);
    padding: 8px 14px;
    border-radius: 6px;
}

.hero .status .dot {
    flex-shrink: 0;
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
}

/* — SECTION HEADERS — */
.section-label {
    font-family: var(--mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* — CONTRAST SECTION (alternating bg) — */
.section-contrast {
    background: var(--bg-contrast);
    color: var(--text-contrast);
}

.section-contrast .section-label {
    color: var(--text-contrast-secondary);
}
.section-contrast .skill-icon {
    color: var(--accent-soft);
}
.section-contrast .skill-title {
    color: var(--accent-soft);
}
.section-contrast .skill-body p {
    color: var(--text-contrast-secondary);
}
.section-contrast .skill-body strong {
    color: var(--text-contrast);
}
.section-contrast .tech-line {
    color: var(--text-contrast-secondary);
}
.section-contrast .wip-badge {
    color: var(--accent-soft);
    border-color: var(--accent-soft);
}

/* — SKILLS — */
.skills {
    display: flex;
    flex-direction: column;
    gap: 56px;
}

.skill {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: start;
}

.skill-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.skill-icon {
    width: 36px;
    height: 36px;
    color: var(--accent);
    opacity: 0.7;
}

.skill-title {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--accent);
}

.skill-body p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.skill-body strong {
    color: var(--text);
    font-weight: 600;
}

.tech-line {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 10px;
    opacity: 0.7;
}

.skill-note {
    margin-top: 14px;
    font-size: 15px;
    opacity: 0.8;
}

.wip-badge {
    display: inline-block;
    font-family: var(--mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 2px 7px;
    border-radius: 3px;
    margin-left: 4px;
    vertical-align: middle;
}

/* — SCREENSHOT — */
.screenshot-container {
    margin-top: 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-contrast);
    background: var(--bg-contrast-inset);
}

.screenshot-container img {
    width: 100%;
    display: block;
}

.screenshot-caption {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-contrast-secondary);
    opacity: 0.6;
    padding: 10px 14px;
    border-top: 1px solid var(--border-contrast);
}

/* — MINDSET — */
.mindset-items {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.mindset-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: start;
}

.mindset-left {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 5px;
}

.mindset-icon {
    width: 20px;
    height: 20px;
    color: var(--accent);
    opacity: 0.6;
    flex-shrink: 0;
}

.mindset-label {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--text);
}

.mindset-text {
    color: var(--text-secondary);
}

/* — CONTACT — */
.contact-section {
    background: var(--bg-alt);
}

.contact-section p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.contact-cta {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.contact-links {
    display: flex;
    gap: 16px;
    margin-top: 28px;
}

.contact-link {
    font-family: var(--mono);
    font-size: 13px;
    color: var(--accent);
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid var(--accent);
    border-radius: 6px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
}

.contact-link:hover {
    background: var(--accent);
    color: var(--bg);
}
.contact-link.primary {
    background: var(--accent);
    color: var(--bg);
}
.contact-link.primary:hover {
    background: var(--btn-hover);
}

/* — FOOTER — */
footer {
    background: var(--bg-alt);
    padding: 24px 24px 40px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-secondary);
    opacity: 0.6;
    text-align: center;
}

/* — CAROUSEL — */
.screenshot-container {
    margin-top: 20px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-contrast);
    background: var(--bg-contrast-inset);
    position: relative;
}

.carousel-track {
    display: flex;
    overflow-x: scroll;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
}

.carousel-slide {
    min-width: 100%;
    aspect-ratio: 8 / 5;
    display: flex;
    align-items: center;
    justify-content: center;
    scroll-snap-align: start;
    overflow: hidden;
}

.carousel-slide a {
    width: 100%;
    height: 100%;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.screenshot-placeholder {
    width: 100%;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.screenshot-placeholder svg {
    width: 32px;
    height: 32px;
    color: var(--border-contrast);
}

.screenshot-placeholder span {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-contrast-secondary);
    opacity: 0.5;
}

.carousel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-top: 1px solid var(--border-contrast);
}

.carousel-footer .screenshot-caption {
    border: none;
}

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

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

.carousel-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-contrast-secondary);
    opacity: 0.3;
    transition: opacity 0.3s;
}

.carousel-dot.active {
    opacity: 1;
}

.carousel-btn {
    background: none;
    border: 1px solid var(--border-contrast);
    border-radius: 4px;
    color: var(--text-contrast-secondary);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

.carousel-btn:hover {
    border-color: var(--text-contrast-secondary);
    color: var(--text-contrast);
}

.carousel-btn svg {
    width: 14px;
    height: 14px;
}

/* — RESPONSIVE — */
@media (max-width: 640px) {
    .hero-content {
        flex-direction: column-reverse;
        align-items: flex-start;
        gap: 24px;
    }

    .hero-portrait {
        width: 100px;
        height: 100px;
    }
    .hero-portrait svg {
        width: 36px;
        height: 36px;
    }

    .skill,
    .mindset-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .skill-left {
        flex-direction: row;
        align-items: center;
    }

    .skill-icon {
        width: 24px;
        height: 24px;
    }

    nav .nav-links {
        gap: 16px;
    }
    nav .nav-links a {
        font-size: 11px;
    }
    section {
        padding: 56px 0;
    }
}