/* 1. Tokens */
:root {
    color-scheme: dark;
    --background: #080a10;
    --background-secondary: #0d1018;
    --surface: #131722;
    --surface-hover: #181d2a;
    --border: #252b3b;
    --border-strong: #3b4460;
    --text-primary: #f4f5f8;
    --text-secondary: #b8bdc9;
    --text-muted: #858c9d;
    --accent: #8b80f9;
    --accent-hover: #aaa3ff;
    --accent-soft: rgba(139, 128, 249, 0.14);
    --success: #55d6a3;
    --warning: #e4b85d;
    --error: #f27d8e;
    --shadow-small: 0 0.75rem 2rem rgba(0, 0, 0, 0.18);
    --shadow-large: 0 2rem 6rem rgba(0, 0, 0, 0.32);
    --radius-small: 0.65rem;
    --radius-medium: 1rem;
    --radius-large: 1.5rem;
    --container: 75rem;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    line-height: 1.6;
    font-synthesis: none;
}

/* 2. Reset and base */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 6.5rem;
}

body {
    min-height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    background:
        radial-gradient(circle at 12% 4%, rgba(91, 75, 194, 0.12), transparent 26rem),
        var(--background);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

main {
    flex: 1;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    letter-spacing: -0.035em;
    line-height: 1.12;
}

a {
    color: inherit;
    text-underline-offset: 0.22em;
}

::selection {
    color: var(--text-primary);
    background: rgba(139, 128, 249, 0.35);
}

/* 3. Layout */
.container {
    width: min(calc(100% - 3rem), var(--container));
    margin-inline: auto;
}

.content-section {
    padding-block: clamp(5rem, 9vw, 8rem);
    scroll-margin-top: 5rem;
}

.section-heading {
    max-width: 42rem;
    margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.section-heading h2,
.about-copy h2 {
    margin-bottom: 1rem;
    font-size: clamp(2rem, 5vw, 3.2rem);
}

.section-heading > p:last-child,
.about-copy p {
    margin-bottom: 0;
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.125rem);
}

.section-label {
    margin-bottom: 0.85rem;
    color: var(--accent-hover);
    font-size: 0.75rem;
    font-weight: 750;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

/* 4. Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    background: rgba(8, 10, 16, 0.82);
    box-shadow: 0 0.75rem 2.5rem rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(1rem) saturate(130%);
    -webkit-backdrop-filter: blur(1rem) saturate(130%);
}

.header-inner {
    min-height: 4.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.site-name {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.05rem;
    font-weight: 760;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.brand-dot {
    width: 0.7rem;
    height: 0.7rem;
    border: 2px solid var(--accent-hover);
    border-radius: 50%;
    box-shadow: 0 0 0 0.25rem var(--accent-soft);
}

.site-nav ul {
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    list-style: none;
}

.site-nav a,
.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
}

.site-nav a {
    min-height: 2.75rem;
    padding-inline: 0.85rem;
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-small);
    font-size: 0.9rem;
    font-weight: 600;
}

.site-nav a:hover,
.footer-nav a:hover {
    color: var(--text-primary);
}

.site-nav a:hover {
    background: rgba(255, 255, 255, 0.045);
}

/* 5. Hero */
.hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(5rem, 10vw, 9rem);
}

.hero::before {
    content: "";
    position: absolute;
    width: 36rem;
    height: 36rem;
    top: -18rem;
    right: -12rem;
    border-radius: 50%;
    background: rgba(96, 78, 222, 0.09);
    filter: blur(4rem);
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
    align-items: center;
    gap: clamp(3rem, 8vw, 7rem);
}

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

.hero-copy .section-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.hero-copy .section-label span {
    width: 1.5rem;
    height: 1px;
    background: currentColor;
}

.hero h1 {
    margin-bottom: 1.5rem;
    font-size: clamp(4rem, 10vw, 7.5rem);
    font-weight: 780;
    letter-spacing: -0.07em;
    line-height: 0.94;
    text-wrap: balance;
}

.hero-lead {
    max-width: 39rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    font-size: clamp(1.15rem, 2.7vw, 1.45rem);
    line-height: 1.55;
}

.button-link {
    min-height: 3rem;
    width: fit-content;
    padding: 0.7rem 1.1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(170, 163, 255, 0.48);
    border-radius: var(--radius-small);
    color: var(--text-primary);
    background: linear-gradient(180deg, rgba(139, 128, 249, 0.19), rgba(139, 128, 249, 0.1));
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.08), var(--shadow-small);
    font-weight: 700;
    text-decoration: none;
}

.button-link:hover {
    border-color: var(--accent-hover);
    background: linear-gradient(180deg, rgba(139, 128, 249, 0.27), rgba(139, 128, 249, 0.14));
}

.hero-visual {
    position: relative;
    min-height: 28rem;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-large);
    background:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        radial-gradient(circle at 50% 50%, rgba(125, 107, 237, 0.2), transparent 45%),
        rgba(18, 21, 32, 0.72);
    background-size: 2rem 2rem, 2rem 2rem, auto, auto;
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.07), var(--shadow-large);
}

.hero-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.035), transparent 38%);
    pointer-events: none;
}

.visual-orbit,
.visual-core,
.visual-node {
    position: absolute;
}

.visual-orbit {
    top: 50%;
    left: 50%;
    border: 1px solid rgba(170, 163, 255, 0.19);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.visual-orbit-outer {
    width: 18rem;
    height: 18rem;
}

.visual-orbit-inner {
    width: 10.5rem;
    height: 10.5rem;
    border-color: rgba(170, 163, 255, 0.35);
}

.visual-core {
    width: 5.75rem;
    height: 5.75rem;
    top: 50%;
    left: 50%;
    display: grid;
    place-items: center;
    border: 1px solid rgba(170, 163, 255, 0.52);
    border-radius: 1.35rem;
    color: var(--text-primary);
    background: linear-gradient(145deg, rgba(139, 128, 249, 0.38), rgba(58, 48, 130, 0.32));
    box-shadow: 0 1.25rem 4rem rgba(71, 53, 175, 0.32), inset 0 1px rgba(255, 255, 255, 0.13);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    transform: translate(-50%, -50%);
}

.visual-node {
    min-height: 2.4rem;
    padding: 0.45rem 0.75rem;
    display: flex;
    align-items: center;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    color: var(--text-secondary);
    background: rgba(10, 12, 19, 0.82);
    box-shadow: var(--shadow-small);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.visual-node::before {
    content: "";
    width: 0.42rem;
    height: 0.42rem;
    margin-right: 0.5rem;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 0.2rem var(--accent-soft);
}

.visual-node-projects {
    top: 16%;
    left: 9%;
}

.visual-node-tools {
    left: 11%;
    bottom: 20%;
}

/* 6. Sections */
.about-section {
    background:
        radial-gradient(circle at 82% 50%, rgba(139, 128, 249, 0.08), transparent 24rem),
        var(--background-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(10rem, 0.5fr) minmax(0, 1.5fr);
    align-items: start;
    gap: clamp(2rem, 8vw, 8rem);
}

.about-copy {
    max-width: 47rem;
}

.about-copy p {
    font-size: clamp(1.15rem, 2.5vw, 1.45rem);
}

/* 7. Cards */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr));
    gap: 1.25rem;
}

.project-card {
    min-height: 19rem;
    padding: clamp(1.4rem, 4vw, 2rem);
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-rows: 1fr auto;
    gap: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-large);
    background:
        linear-gradient(135deg, rgba(139, 128, 249, 0.065), transparent 48%),
        var(--surface);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.045), var(--shadow-small);
    transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.project-monogram {
    width: 3.5rem;
    height: 3.5rem;
    display: grid;
    place-items: center;
    border: 1px solid rgba(170, 163, 255, 0.35);
    border-radius: 1rem;
    color: var(--accent-hover);
    background: var(--accent-soft);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.09em;
}

.project-content h3 {
    margin-bottom: 0.85rem;
    font-size: clamp(1.45rem, 3vw, 1.85rem);
}

.project-content > p {
    max-width: 48rem;
    margin-bottom: 0;
    color: var(--text-secondary);
}

.card-meta {
    margin-bottom: 1rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem;
}

.category {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.card-link {
    min-height: 2.75rem;
    width: fit-content;
    padding: 0.5rem 0.8rem;
    grid-column: 2;
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    align-self: end;
    border-radius: var(--radius-small);
    color: var(--accent-hover);
    font-weight: 700;
    text-decoration: none;
}

.card-link::after {
    content: "";
    width: 0.45rem;
    height: 0.45rem;
    border-top: 0.12rem solid currentColor;
    border-right: 0.12rem solid currentColor;
    transform: translateY(0.08rem) rotate(45deg);
}

.card-link:hover {
    background: var(--accent-soft);
}

/* 8. Status */
.status {
    min-height: 1.75rem;
    padding-inline: 0.65rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 760;
    line-height: 1;
}

.status span {
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: currentColor;
}

.status-active {
    color: var(--success);
    background: rgba(85, 214, 163, 0.08);
}

.status-development {
    color: var(--accent-hover);
    background: var(--accent-soft);
}

.status-maintenance {
    color: var(--warning);
    background: rgba(228, 184, 93, 0.08);
}

.status-archived {
    color: var(--text-muted);
    background: rgba(133, 140, 157, 0.08);
}

.status-error {
    color: var(--error);
    background: rgba(242, 125, 142, 0.08);
}

/* 9. Footer */
.site-footer {
    padding-block: 2.75rem;
    border-top: 1px solid var(--border);
    background: #07090e;
}

.footer-grid {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 2rem;
}

.footer-brand {
    margin-bottom: 0.4rem;
}

.copyright {
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.25rem 1.25rem;
}

.footer-nav a {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    font-size: 0.86rem;
    font-weight: 600;
}

/* 10. 404 */
.error-page {
    background:
        radial-gradient(circle at 50% 35%, rgba(94, 76, 210, 0.16), transparent 30rem),
        var(--background);
}

.error-main {
    min-height: min(46rem, calc(100vh - 10rem));
    padding-block: clamp(4rem, 10vw, 8rem);
    display: grid;
    place-items: center;
}

.error-panel {
    position: relative;
    max-width: 49rem;
    margin-inline: auto;
    padding: clamp(2rem, 7vw, 4.5rem);
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-large);
    background: rgba(19, 23, 34, 0.76);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.055), var(--shadow-large);
    text-align: center;
}

.error-code {
    position: absolute;
    top: -2.5rem;
    right: -0.5rem;
    color: rgba(170, 163, 255, 0.055);
    font-size: clamp(8rem, 28vw, 15rem);
    font-weight: 850;
    letter-spacing: -0.08em;
    line-height: 1;
    pointer-events: none;
}

.error-panel .section-label,
.error-panel h1,
.error-panel > p,
.error-panel .button-link {
    position: relative;
}

.error-panel h1 {
    margin-bottom: 1rem;
    font-size: clamp(2.4rem, 7vw, 4.5rem);
}

.error-panel > p:not(.section-label) {
    max-width: 35rem;
    margin: 0 auto 2rem;
    color: var(--text-secondary);
}

.footer-grid-compact {
    align-items: center;
}

/* 11. Responsive */
@media (hover: hover) {
    .project-card:hover {
        border-color: var(--border-strong);
        background-color: var(--surface-hover);
        box-shadow: inset 0 1px rgba(255, 255, 255, 0.065), 0 1.5rem 3.5rem rgba(0, 0, 0, 0.26);
        transform: translateY(-0.2rem);
    }

    .button-link {
        transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
    }

    .button-link:hover {
        transform: translateY(-0.1rem);
    }
}

@media (max-width: 58rem) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-copy {
        max-width: 46rem;
    }

    .hero-visual {
        width: min(100%, 42rem);
        min-height: 24rem;
    }
}

@media (max-width: 44rem) {
    html {
        scroll-padding-top: 8.75rem;
    }

    .container {
        width: min(calc(100% - 2rem), var(--container));
    }

    .header-inner {
        padding-block: 0.6rem;
        flex-wrap: wrap;
        gap: 0.2rem 1rem;
    }

    .site-name {
        min-height: 2.5rem;
    }

    .site-nav {
        width: 100%;
    }

    .site-nav ul {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.25rem;
    }

    .site-nav a {
        min-height: 2.75rem;
        padding-inline: 0.35rem;
        justify-content: center;
        text-align: center;
        font-size: 0.78rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .project-card {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .project-monogram {
        width: 3.1rem;
        height: 3.1rem;
    }

    .card-link {
        grid-column: 1;
    }

    .footer-grid {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-nav {
        width: 100%;
        justify-content: flex-start;
        gap-inline: 1rem;
    }
}

@media (max-width: 30rem) {
    .hero {
        padding-top: 4rem;
    }

    .hero h1 {
        font-size: clamp(3.25rem, 19vw, 5rem);
    }

    .hero-visual {
        min-height: 20rem;
    }

    .visual-orbit-outer {
        width: 15rem;
        height: 15rem;
    }

    .visual-orbit-inner {
        width: 9rem;
        height: 9rem;
    }

    .visual-node {
        min-height: 2rem;
        padding: 0.35rem 0.55rem;
        font-size: 0.62rem;
    }

    .visual-node-projects {
        top: 11%;
        left: 5%;
    }

    .visual-node-tools {
        left: 5%;
        bottom: 16%;
    }

}

/* 12. Accessibility */
.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 100;
    padding: 0.7rem 0.9rem;
    border-radius: var(--radius-small);
    color: var(--background);
    background: var(--text-primary);
    font-weight: 750;
    transform: translateY(-200%);
}

.skip-link:focus {
    transform: translateY(0);
}

a:focus-visible {
    outline: 0.2rem solid var(--accent-hover);
    outline-offset: 0.22rem;
    border-radius: 0.2rem;
}

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

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}