/*
Theme Name: HEX-816
Theme URI: https://github.com/hex816
Author: HEX-816 contributors
Author URI: https://github.com/hex816
Description: Editorial brand theme for the HEX-816 homebrew 65C816 computer. Single-page front design with hardware/software/compiler sections, editorial typography (Fraunces, Newsreader, JetBrains Mono), and a phosphor-amber dark palette.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: hex816
Tags: one-column, custom-colors, custom-menu, editor-style, full-width-template, theme-options, threaded-comments, translation-ready
*/

:root {
    --bg:           #0b0a08;
    --bg-warm:      #14110d;
    --surface:      #1a1612;
    --surface-2:    #221d17;
    --line:         #2e2820;
    --line-bright:  #463d30;
    --ink:          #f4ede0;
    --ink-dim:      #c9bfae;
    --ink-quiet:    #8a8273;
    --ink-faint:    #4f4a3f;
    --amber:        #ff9a2a;
    --amber-glow:   #ffb866;
    --amber-deep:   #cc6a00;
    --crimson:      #e8472a;
    --moss:         #9aa86b;

    --font-display: 'Fraunces', 'Times New Roman', serif;
    --font-body:    'Newsreader', Georgia, serif;
    --font-mono:    'JetBrains Mono', ui-monospace, monospace;

    --pad-x: clamp(1.25rem, 4vw, 4rem);
    --max-w: 1320px;
  }

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

  html { scroll-behavior: smooth; }

  body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 17px;
    line-height: 1.55;
    font-feature-settings: "ss01", "ss02";
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  /* Background texture: hex grid + grain */
  body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
      radial-gradient(circle at 20% 15%, rgba(255, 154, 42, 0.06) 0%, transparent 35%),
      radial-gradient(circle at 80% 60%, rgba(232, 71, 42, 0.04) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
  }

  body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 80px 80px;
    opacity: 0.18;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    pointer-events: none;
    z-index: 0;
  }

  main, header, footer { position: relative; z-index: 1; }

  /* ---------- NAV ---------- */
  .nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 10, 8, 0.78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }

  .nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0.95rem var(--pad-x);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .brand {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    color: var(--ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.7rem;
  }

  .brand-mark {
    height: 36px;
    width: auto;
    color: var(--ink);
    display: block;
    flex-shrink: 0;
    transition: color 0.25s, opacity 0.25s;
  }
  .brand:hover .brand-mark { color: var(--amber-glow); }
  /* hide the text content of .brand since the SVG already contains "HEX 816" */
  .brand { font-size: 0; line-height: 0; gap: 0; }

  .nav-links {
    display: flex;
    gap: 1.8rem;
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }
  .nav-links a {
    color: var(--ink-quiet);
    text-decoration: none;
    transition: color 0.2s;
    position: relative;
  }
  .nav-links a:hover { color: var(--amber); }
  .nav-links a::before {
    content: attr(data-num);
    color: var(--ink-faint);
    margin-right: 0.55em;
    font-weight: 300;
  }

  .nav-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-quiet);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .nav-status::before {
    content: "";
    width: 7px;
    height: 7px;
    background: var(--amber);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--amber-glow);
    animation: pulse 2.6s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.35; }
  }

  @media (max-width: 840px) {
    .nav-links { display: none; }
  }

  /* ---------- HERO ---------- */
  .hero {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: clamp(3rem, 9vh, 7rem) var(--pad-x) clamp(4rem, 12vh, 9rem);
    position: relative;
  }

  .hero-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    border-top: 1px solid var(--line-bright);
    padding-top: 1rem;
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  .hero-meta span:first-child { color: var(--amber); }

  .hero-mast {
    display: flex;
    align-items: center;
    gap: clamp(2rem, 5vw, 4.5rem);
    margin-bottom: clamp(3rem, 8vh, 6rem);
    flex-wrap: wrap;
  }
  .hero-logo {
    flex: 0 0 auto;
    display: block;
    margin: 0;
    padding: 0;
    animation: rise 1.2s cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }
  .hero-logo svg {
    display: block;
    width: 100%;
    max-width: 420px;
    min-width: 280px;
    height: auto;
    color: var(--ink);
    transition: color 0.5s;
  }
  .hero-mast:hover .hero-logo svg {
    color: var(--amber-glow);
  }

  .hero-lede {
    flex: 1 1 320px;
    max-width: 44ch;
    font-family: var(--font-body);
    font-size: clamp(1.15rem, 1.8vw, 1.45rem);
    line-height: 1.5;
    color: var(--ink-dim);
    font-weight: 300;
    margin: 0;
    text-align: left;
    animation: rise 1.2s cubic-bezier(0.2, 0.7, 0.2, 1) 0.2s both;
  }
  .hero-lede strong {
    color: var(--ink);
    font-weight: 500;
    font-style: italic;
  }

  @media (max-width: 720px) {
    .hero-logo svg { max-width: 320px; min-width: 0; }
  }

  @keyframes rise {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .hero-stats {
    margin-top: clamp(3rem, 8vh, 6rem);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--line-bright);
    animation: rise 1.2s cubic-bezier(0.2, 0.7, 0.2, 1) 0.5s both;
  }
  .hero-stats > div {
    padding: 1.4rem 1.2rem 0 0;
    border-right: 1px solid var(--line);
  }
  .hero-stats > div:last-child { border-right: none; }
  .hero-stats dt {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    margin-bottom: 0.5rem;
  }
  .hero-stats dd {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 2.6vw, 2.4rem);
    font-weight: 400;
    font-variation-settings: "opsz" 72;
    letter-spacing: -0.02em;
    color: var(--ink);
    line-height: 1;
  }
  .hero-stats dd small {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-quiet);
    letter-spacing: 0.1em;
    margin-left: 0.3em;
    font-weight: 400;
  }

  @media (max-width: 720px) {
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .hero-stats > div:nth-child(2) { border-right: none; }
    .hero-stats > div:nth-child(1), .hero-stats > div:nth-child(2) {
      border-bottom: 1px solid var(--line);
      padding-bottom: 1.4rem;
    }
    .hero-lede { text-align: left; margin-left: 0; }
  }

  /* ---------- SECTIONS ---------- */
  section {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: clamp(4rem, 10vh, 8rem) var(--pad-x);
    position: relative;
  }

  .section-head {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 2rem;
    align-items: start;
    border-top: 1px solid var(--line-bright);
    padding-top: 1.5rem;
    margin-bottom: 3.5rem;
  }
  .section-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: var(--amber);
    line-height: 1.4;
  }
  .section-num span {
    display: block;
    color: var(--ink-quiet);
    margin-top: 0.4em;
    font-size: 0.66rem;
    text-transform: uppercase;
  }
  .section-title {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 96;
    font-weight: 350;
    font-size: clamp(2rem, 4.5vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
    color: var(--ink);
    max-width: 22ch;
  }
  .section-title em {
    font-style: italic;
    color: var(--amber);
    font-weight: 300;
  }

  @media (max-width: 700px) {
    .section-head { grid-template-columns: 1fr; gap: 0.8rem; }
  }

  /* ---------- OVERVIEW / MANIFESTO ---------- */
  .manifesto {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
  }
  .manifesto p {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--ink-dim);
    margin-bottom: 1.2rem;
  }
  .manifesto p:first-child::first-line {
    font-variant: small-caps;
    letter-spacing: 0.06em;
    color: var(--ink);
  }
  .manifesto p strong {
    color: var(--ink);
    font-weight: 500;
    font-style: italic;
  }
  @media (max-width: 800px) {
    .manifesto { grid-template-columns: 1fr; }
  }

  /* ---------- HARDWARE GRID ---------- */
  .spec-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1rem;
  }

  .spec-card {
    grid-column: span 6;
    background: var(--surface);
    border: 1px solid var(--line);
    padding: 2rem 1.8rem 1.8rem;
    position: relative;
    transition: border-color 0.3s, background 0.3s;
  }
  .spec-card:hover {
    border-color: var(--amber-deep);
    background: var(--surface-2);
  }
  .spec-card.large { grid-column: span 8; }
  .spec-card.small { grid-column: span 4; }

  .spec-card-hex {
    position: absolute;
    top: 1.2rem;
    right: 1.4rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--amber-deep);
    letter-spacing: 0.1em;
  }

  .spec-card-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    margin-bottom: 0.5rem;
  }

  .spec-card h3 {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 72;
    font-weight: 400;
    font-size: 1.6rem;
    line-height: 1.15;
    color: var(--ink);
    margin-bottom: 1rem;
    letter-spacing: -0.015em;
  }

  .spec-card p {
    font-family: var(--font-body);
    font-size: 0.97rem;
    line-height: 1.55;
    color: var(--ink-dim);
    margin-bottom: 0.9rem;
  }

  .spec-list {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-dim);
    border-top: 1px dashed var(--line-bright);
    padding-top: 0.9rem;
    margin-top: 0.6rem;
  }
  .spec-list li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.35rem 0;
    border-bottom: 1px dotted var(--line);
  }
  .spec-list li:last-child { border-bottom: none; }
  .spec-list li span:first-child { color: var(--ink-quiet); }
  .spec-list li span:last-child { color: var(--ink); text-align: right; }

  @media (max-width: 980px) {
    .spec-card, .spec-card.large, .spec-card.small { grid-column: span 12; }
  }

  /* ---------- MEMORY MAP ---------- */
  .memmap {
    background: var(--bg-warm);
    border: 1px solid var(--line-bright);
    padding: 2rem;
    margin-top: 2.5rem;
  }
  .memmap-title {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 1.4rem;
  }
  .memmap-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
  }
  .memmap-cell {
    padding: 0.7rem 0.6rem;
    background: var(--surface);
    color: var(--ink-dim);
    position: relative;
    min-height: 60px;
  }
  .memmap-cell.io     { background: rgba(255, 154, 42, 0.12); color: var(--amber); }
  .memmap-cell.tpa    { background: rgba(154, 168, 107, 0.08); color: var(--moss); }
  .memmap-cell.ccp    { background: rgba(232, 71, 42, 0.08); color: var(--crimson); }
  .memmap-cell.bios   { background: rgba(255, 154, 42, 0.18); color: var(--amber-glow); }
  .memmap-cell-addr {
    display: block;
    font-size: 0.62rem;
    color: var(--ink-faint);
    margin-bottom: 0.2rem;
    letter-spacing: 0.06em;
  }
  .memmap-cell.io .memmap-cell-addr,
  .memmap-cell.tpa .memmap-cell-addr,
  .memmap-cell.ccp .memmap-cell-addr,
  .memmap-cell.bios .memmap-cell-addr { color: currentColor; opacity: 0.65; }

  @media (max-width: 720px) {
    .memmap-grid { grid-template-columns: repeat(4, 1fr); }
  }

  /* ---------- SOFTWARE ---------- */
  .software-intro {
    font-family: var(--font-body);
    font-size: 1.2rem;
    line-height: 1.55;
    color: var(--ink-dim);
    max-width: 56ch;
    margin-bottom: 3rem;
  }
  .software-intro strong {
    color: var(--ink);
    font-style: italic;
    font-weight: 500;
  }

  .layer-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--line-bright);
  }
  .layer {
    display: grid;
    grid-template-columns: 100px 1fr 1.4fr;
    gap: 1.5rem;
    padding: 1.6rem 1.8rem;
    border-bottom: 1px solid var(--line);
    align-items: baseline;
    transition: background 0.25s;
  }
  .layer:last-child { border-bottom: none; }
  .layer:hover { background: var(--surface); }

  .layer-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--amber);
    letter-spacing: 0.12em;
    align-self: start;
  }
  .layer-name {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 72;
    font-weight: 400;
    font-size: 1.45rem;
    color: var(--ink);
    letter-spacing: -0.01em;
  }
  .layer-name span {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--ink-quiet);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 0.3rem;
    font-weight: 400;
  }
  .layer-desc {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.55;
    color: var(--ink-dim);
  }

  @media (max-width: 800px) {
    .layer { grid-template-columns: 1fr; gap: 0.5rem; padding: 1.4rem 1.2rem; }
  }

  /* ---------- LANGUAGES ---------- */
  .lang-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 4rem);
    margin-top: 4rem;
  }
  @media (max-width: 900px) {
    .lang-section { grid-template-columns: 1fr; }
  }

  .lang-group h4 {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 1.2rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid var(--line-bright);
  }
  .lang-group h4 span { color: var(--ink-quiet); margin-left: 0.6em; }

  .lang-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  .lang-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    padding: 0.4rem 0;
    align-items: baseline;
  }
  .lang-name {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 36;
    font-weight: 450;
    font-size: 1.4rem;
    color: var(--ink);
    letter-spacing: -0.01em;
    min-width: 8.5rem;
  }
  .lang-name em {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    color: var(--amber-deep);
    margin-left: 0.5em;
    letter-spacing: 0.1em;
    font-style: normal;
    font-weight: 400;
    vertical-align: middle;
  }
  .lang-desc {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--ink-dim);
  }

  /* ---------- STATUS ---------- */
  .status-section {
    background: var(--bg-warm);
    border-top: 1px solid var(--line-bright);
    border-bottom: 1px solid var(--line-bright);
    margin-top: 4rem;
  }
  .status-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: clamp(4rem, 9vh, 7rem) var(--pad-x);
  }
  .status-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--line-bright);
    margin-top: 3rem;
  }
  .status-grid > div {
    padding: 1.8rem 1.4rem 0 0;
    border-right: 1px solid var(--line);
    position: relative;
  }
  .status-grid > div:last-child { border-right: none; }
  .status-grid dt {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    margin-bottom: 0.7rem;
  }
  .status-grid dd {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 72;
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.2;
    margin-bottom: 0.4rem;
  }
  .status-grid dd small {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--ink-quiet);
    margin-top: 0.4rem;
    letter-spacing: 0.04em;
    font-weight: 400;
  }
  @media (max-width: 800px) {
    .status-grid { grid-template-columns: 1fr 1fr; }
    .status-grid > div:nth-child(2) { border-right: none; }
    .status-grid > div:nth-child(1), .status-grid > div:nth-child(2) {
      border-bottom: 1px solid var(--line);
      padding-bottom: 1.6rem;
    }
  }

  /* ---------- ROADMAP ---------- */
  .roadmap {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
  }
  @media (max-width: 900px) { .roadmap { grid-template-columns: 1fr; } }

  .roadmap-card {
    border: 1px solid var(--line);
    padding: 1.6rem 1.4rem;
    background: var(--surface);
  }
  .roadmap-card-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    margin-bottom: 0.7rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .roadmap-card-tag::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ink-faint);
  }
  .roadmap-card.done { opacity: 0.55; }
  .roadmap-card.done .roadmap-card-tag { color: var(--moss); }
  .roadmap-card.done .roadmap-card-tag::before { background: var(--moss); }
  .roadmap-card.next .roadmap-card-tag { color: var(--amber); }
  .roadmap-card.next .roadmap-card-tag::before { background: var(--amber); box-shadow: 0 0 6px var(--amber-glow); }
  .roadmap-card.later .roadmap-card-tag { color: var(--moss); }
  .roadmap-card.later .roadmap-card-tag::before { background: var(--moss); }

  .roadmap-card h4 {
    font-family: var(--font-display);
    font-variation-settings: "opsz" 60;
    font-size: 1.2rem;
    font-weight: 450;
    color: var(--ink);
    margin-bottom: 0.6rem;
    letter-spacing: -0.01em;
  }
  .roadmap-card p {
    font-family: var(--font-body);
    font-size: 0.92rem;
    line-height: 1.5;
    color: var(--ink-dim);
  }

  /* ---------- COLOPHON ---------- */
  .colophon {
    border-top: 1px solid var(--line-bright);
    padding-top: 3rem;
    margin-top: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
  }
  .colophon-block h5 {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-quiet);
    margin-bottom: 0.8rem;
  }
  .colophon-block p, .colophon-block a {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--ink-dim);
    text-decoration: none;
    display: block;
  }
  .colophon-block a:hover { color: var(--amber); }
  @media (max-width: 800px) { .colophon { grid-template-columns: 1fr; } }

  /* ---------- FOOTER ---------- */
  footer {
    border-top: 1px solid var(--line);
    padding: 2.2rem var(--pad-x);
    margin-top: 0;
    background: var(--bg-warm);
  }
  .footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-quiet);
    letter-spacing: 0.06em;
    flex-wrap: wrap;
  }
  .footer-inner a { color: var(--ink-quiet); text-decoration: none; }
  .footer-inner a:hover { color: var(--amber); }

  /* ---------- DECORATIVE DIVIDERS ---------- */
  .ascii-divider {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-faint);
    text-align: center;
    margin: 3rem auto 0;
    letter-spacing: 0.2em;
    user-select: none;
  }

  /* ---------- SCROLL REVEAL ---------- */
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.9s cubic-bezier(0.2, 0.7, 0.2, 1),
                transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
  }
  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* selection */
  ::selection {
    background: var(--amber);
    color: var(--bg);
  }

  /* scrollbar */
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: var(--bg); }
  ::-webkit-scrollbar-thumb { background: var(--line-bright); }
  ::-webkit-scrollbar-thumb:hover { background: var(--amber-deep); }