/* ==========================================================================
   Bitbasher — app.css
   The whole design system. Terminal/ANSI aesthetic: near-black background,
   phosphor green primary, 1px hairlines, monospace everywhere.

   Owned by the UI shell agent (docs/DEV_CONVENTIONS.md §4). Other stylesheets
   (creator.css, admin.css, overlay.css) layer on top of these classes and must
   not redefine them.

   Sections
     01  Tokens
     02  Reset & base elements
     03  Shell (topbar, main, statusbar)
     04  Menus
     05  Panels
     06  Layout primitives
     07  Buttons
     08  Forms
     09  Data (tables, tags, badges, kv, pager)
     10  Feedback (flash, empty, spinner)
     11  Media (track cards, player, waveform, meter)
     12  Creator base (rack, module, knob, seq, scope, tabs)
     13  State
     14  Utility + overlays (scanlines, ascii, glow)
     15  Home / marketing blocks
     16  About + error pages
     17  Responsive
     18  Reduced motion / print / forced colours
   ========================================================================== */

/* --------------------------------------------------------------------------
   01  Tokens
   -------------------------------------------------------------------------- */

:root {
  /* Contract tokens — exact values from DEV_CONVENTIONS.md §4. */
  --bb-bg: #05070a;
  --bb-bg-2: #0a0e14;
  --bb-panel: #0d1219;
  --bb-line: #1c2735;
  --bb-text: #cfe3d8;
  --bb-dim: #6f8b7f;
  --bb-green: #7dffb0;
  --bb-amber: #ffc857;
  --bb-cyan: #62e6ff;
  --bb-magenta: #ff6bd6;
  --bb-red: #ff5c5c;
  --bb-mono: ui-monospace, "DejaVu Sans Mono", Menlo, Consolas, monospace;
  --bb-radius: 3px;
  --bb-gap: 12px;

  /* Derived helpers (additions, documented in the UI report). */
  --bb-line-hi: #2c3d52;
  --bb-line-soft: #141c26;
  --bb-panel-2: #101722;
  --bb-green-dim: #3f7f5d;
  --bb-ink: #05090c;
  --bb-gap-sm: 6px;
  --bb-gap-lg: 20px;
  --bb-radius-lg: 5px;
  --bb-fs: 14px;
  --bb-fs-sm: 12px;
  --bb-fs-xs: 11px;
  --bb-lh: 1.55;
  --bb-shadow: 0 1px 0 rgba(125, 255, 176, 0.04), 0 10px 30px rgba(0, 0, 0, 0.55);
  --bb-glow: 0 0 8px rgba(125, 255, 176, 0.35);
  --bb-focus: var(--bb-cyan);
  --bb-shell-max: 1180px;
  --bb-shell-max-wide: 1680px;
  --bb-pad: 16px;
  color-scheme: dark;
}

/* --------------------------------------------------------------------------
   02  Reset & base elements
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--bb-bg);
  -webkit-text-size-adjust: 100%;
  scrollbar-color: var(--bb-line-hi) var(--bb-bg);
}

body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 620px at 50% -12%, rgba(125, 255, 176, 0.055), transparent 70%),
    linear-gradient(180deg, var(--bb-bg-2) 0%, var(--bb-bg) 380px, var(--bb-bg) 100%);
  color: var(--bb-text);
  font-family: var(--bb-mono);
  font-size: var(--bb-fs);
  line-height: var(--bb-lh);
  font-variant-ligatures: none;
  text-rendering: optimizeLegibility;
}

img,
svg,
canvas,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 0.6em;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--bb-text);
}

h1 {
  font-size: clamp(1.25rem, 1rem + 1.1vw, 1.75rem);
  color: var(--bb-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h2 {
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.3rem);
  color: var(--bb-text);
}

h3 {
  font-size: 1rem;
  color: var(--bb-green);
}

h4 {
  font-size: 0.9375rem;
  color: var(--bb-cyan);
}

/* Blinking caret accent on headings. */
h1::after,
.caret::after {
  content: "\2588";
  display: inline-block;
  margin-left: 0.35ch;
  color: var(--bb-green);
  animation: bb-blink 1.05s steps(1, end) infinite;
  transform: translateY(1px);
}

@keyframes bb-blink {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--bb-cyan);
  text-decoration: none;
  border-bottom: 1px dotted rgba(98, 230, 255, 0.4);
}

a:hover,
a:focus-visible {
  color: var(--bb-green);
  border-bottom-color: var(--bb-green);
}

hr {
  border: 0;
  border-top: 1px solid var(--bb-line);
  margin: var(--bb-gap-lg) 0;
}

code,
kbd,
samp,
pre {
  font-family: var(--bb-mono);
  font-size: 0.92em;
}

code {
  padding: 0.1em 0.35em;
  background: var(--bb-bg-2);
  border: 1px solid var(--bb-line);
  border-radius: 2px;
  color: var(--bb-amber);
}

kbd {
  padding: 0.05em 0.4em;
  background: var(--bb-panel-2);
  border: 1px solid var(--bb-line-hi);
  border-bottom-width: 2px;
  border-radius: 3px;
  color: var(--bb-text);
  font-size: 0.85em;
}

pre {
  margin: 0;
  overflow-x: auto;
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

li {
  margin: 0.15em 0;
}

::selection {
  background: rgba(125, 255, 176, 0.28);
  color: #fff;
}

/* Focus rings must stay obvious — this is a keyboard-first UI. */
:focus-visible {
  outline: 2px solid var(--bb-focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Accessible skip link (visible on focus). */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 60;
  padding: 8px 14px;
  background: var(--bb-green);
  color: var(--bb-ink);
  border: 0;
  font-weight: 700;
}

.skip-link:focus {
  left: 8px;
  top: 8px;
}

/* --------------------------------------------------------------------------
   03  Shell
   -------------------------------------------------------------------------- */

.shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

.shell__main {
  flex: 1 1 auto;
  width: min(var(--bb-shell-max), calc(100% - 2 * var(--bb-pad)));
  margin-inline: auto;
  padding: var(--bb-gap-lg) 0 32px;
}

.shell--creator .shell__main {
  width: min(var(--bb-shell-max-wide), calc(100% - 2 * var(--bb-gap)));
  padding-top: var(--bb-gap);
}

/* --- topbar ---------------------------------------------------------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: stretch;
  gap: var(--bb-gap);
  flex-wrap: wrap;
  padding: 0 var(--bb-pad);
  background: linear-gradient(180deg, #0b1017 0%, #080c11 100%);
  border-bottom: 1px solid var(--bb-line);
  box-shadow: 0 1px 0 rgba(125, 255, 176, 0.06), 0 6px 18px rgba(0, 0, 0, 0.5);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px 9px 0;
  border: 0;
  border-right: 1px solid var(--bb-line);
  padding-right: 14px;
  color: var(--bb-green);
  white-space: nowrap;
}

.topbar__brand:hover,
.topbar__brand:focus-visible {
  color: var(--bb-green);
}

.topbar__brand img {
  width: 26px;
  height: 26px;
  filter: drop-shadow(0 0 6px rgba(125, 255, 176, 0.35));
}

.topbar__mark {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  text-shadow: var(--bb-glow);
}

.topbar__bracket {
  color: var(--bb-line-hi);
}

.topbar__blink {
  color: var(--bb-green);
  animation: bb-blink 1.05s steps(1, end) infinite;
}

.topbar__tag {
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

/* --- statusbar ------------------------------------------------------------- */

.statusbar {
  margin-top: auto;
  padding: 14px var(--bb-pad) 22px;
  background: linear-gradient(180deg, rgba(10, 14, 20, 0) 0%, var(--bb-bg-2) 100%);
  border-top: 1px solid var(--bb-line);
  font-size: var(--bb-fs-sm);
  color: var(--bb-dim);
}

.statusbar__inner {
  width: min(var(--bb-shell-max), 100%);
  margin-inline: auto;
  display: grid;
  gap: 8px;
}

.statusbar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.statusbar__row + .statusbar__row {
  padding-top: 8px;
  border-top: 1px dashed var(--bb-line);
}

.statusbar__app {
  color: var(--bb-green);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.statusbar__sig {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 2px 8px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-panel);
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.06em;
}

.statusbar__spacer {
  flex: 1 1 auto;
}

.statusbar a {
  color: var(--bb-dim);
  border-bottom-color: transparent;
}

.statusbar a:hover,
.statusbar a:focus-visible {
  color: var(--bb-green);
  border-bottom-color: var(--bb-green);
}

/* --------------------------------------------------------------------------
   04  Menus
   -------------------------------------------------------------------------- */

.menubar {
  display: flex;
  align-items: stretch;
  flex: 1 1 auto;
  min-width: 0;
}

.menubar__list {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.menubar__list--end {
  margin-left: auto;
}

.menubar__item {
  position: relative;
  display: flex;
  align-items: stretch;
  margin: 0;
}

.menubar__item > a,
.menubar__trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  min-height: 44px;
  margin: 0;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: var(--bb-text);
  font: inherit;
  font-size: var(--bb-fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
}

.menubar__item > a:hover,
.menubar__trigger:hover,
.menubar__item > a:focus-visible,
.menubar__trigger:focus-visible {
  color: var(--bb-green);
  background: rgba(125, 255, 176, 0.06);
  border-bottom-color: var(--bb-green-dim);
}

.menubar__item > a.is-active,
.menubar__trigger.is-active {
  color: var(--bb-green);
  border-bottom-color: var(--bb-green);
  background: rgba(125, 255, 176, 0.05);
  text-shadow: var(--bb-glow);
}

.menubar__trigger::after {
  content: "\25BE";
  font-size: 10px;
  color: var(--bb-dim);
}

.menubar__item.is-open > .menubar__trigger {
  color: var(--bb-green);
  background: var(--bb-panel);
  border-bottom-color: var(--bb-green);
}

.menubar__item.is-open > .menubar__trigger::after {
  color: var(--bb-green);
}

.menubar__drop {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 50;
  min-width: 210px;
  padding: 5px;
  background: var(--bb-panel);
  border: 1px solid var(--bb-line-hi);
  border-radius: 0 0 var(--bb-radius) var(--bb-radius);
  box-shadow: var(--bb-shadow);
}

.menubar__list--end .menubar__drop {
  left: auto;
  right: 0;
}

.menubar__item.is-open > .menubar__drop {
  display: block;
}

/* No-JS fallback: hover/focus opens the submenu. */
html:not(.js) .menubar__item:hover > .menubar__drop,
html:not(.js) .menubar__item:focus-within > .menubar__drop {
  display: block;
}

.menubar__drop form {
  margin: 0;
}

.menubar__link {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border: 0;
  border-left: 2px solid transparent;
  border-radius: 2px;
  background: none;
  color: var(--bb-text);
  font: inherit;
  font-size: var(--bb-fs-sm);
  text-align: left;
  cursor: pointer;
}

.menubar__link::before {
  content: "\203A";
  color: var(--bb-line-hi);
}

.menubar__link:hover,
.menubar__link:focus-visible {
  background: rgba(125, 255, 176, 0.08);
  border-left-color: var(--bb-green);
  color: var(--bb-green);
}

.menubar__link:hover::before,
.menubar__link:focus-visible::before {
  color: var(--bb-green);
}

.menubar__link.is-active {
  color: var(--bb-green);
  border-left-color: var(--bb-green);
}

.menubar__link--danger:hover,
.menubar__link--danger:focus-visible {
  background: rgba(255, 92, 92, 0.1);
  border-left-color: var(--bb-red);
  color: var(--bb-red);
}

.menubar__sep {
  height: 1px;
  margin: 5px 2px;
  background: var(--bb-line);
}

.menubar__who {
  display: flex;
  align-items: center;
  gap: 8px;
}

.menubar__avatar {
  width: 20px;
  height: 20px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  object-fit: cover;
  background: var(--bb-bg-2);
}

.menubar__badge {
  padding: 0 5px;
  border: 1px solid var(--bb-amber);
  border-radius: 2px;
  color: var(--bb-amber);
  font-size: 9px;
  letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   05  Panels
   -------------------------------------------------------------------------- */

.panel {
  position: relative;
  background:
    linear-gradient(180deg, var(--bb-panel-2) 0%, var(--bb-panel) 46px, var(--bb-panel) 100%);
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.015), var(--bb-shadow);
}

.panel__head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--bb-line);
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.035), rgba(0, 0, 0, 0));
}

/* ┌─┤ TITLE ├──────────── head rule, drawn in CSS. */
.panel__title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  white-space: nowrap;
  font-size: var(--bb-fs-sm);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bb-green);
}

.panel__title::before {
  content: "\2524";
  color: var(--bb-line-hi);
  font-weight: 400;
}

.panel__title::after {
  content: "\251C";
  color: var(--bb-line-hi);
  font-weight: 400;
}

/* The dashed rule that runs from the title to the actions. */
.panel__head::after {
  content: "";
  flex: 1 1 auto;
  align-self: center;
  height: 1px;
  min-width: 12px;
  order: 5;
  background: repeating-linear-gradient(
    90deg,
    var(--bb-line-hi) 0 5px,
    transparent 5px 8px
  );
}

.panel__title {
  order: 1;
  flex: 0 1 auto;
}

.panel__actions {
  order: 9;
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: var(--bb-fs-xs);
}

.panel__body {
  padding: var(--bb-gap);
}

.panel--tight .panel__body {
  padding: 8px;
}

.panel--tight .panel__head {
  min-height: 28px;
  padding: 3px 8px;
}

.panel--flush .panel__body {
  padding: 0;
}

.panel--accent {
  border-color: var(--bb-green-dim);
}

.panel--accent .panel__head {
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.09), rgba(0, 0, 0, 0));
}

/* Corner ticks, purely decorative. */
.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  pointer-events: none;
  opacity: 0.6;
}

.panel::before {
  top: -1px;
  left: -1px;
  border-top: 1px solid var(--bb-green-dim);
  border-left: 1px solid var(--bb-green-dim);
}

.panel::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 1px solid var(--bb-green-dim);
  border-right: 1px solid var(--bb-green-dim);
}

/* --------------------------------------------------------------------------
   06  Layout primitives
   -------------------------------------------------------------------------- */

.grid {
  display: grid;
  gap: var(--bb-gap);
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--bb-gap);
}

.stack--sm {
  gap: var(--bb-gap-sm);
}

.stack--lg {
  gap: var(--bb-gap-lg);
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--bb-gap-sm) var(--bb-gap);
}

.row--between {
  justify-content: space-between;
}

.row--tight {
  gap: 4px;
}

/* Bulleted/numbered content lists — keeps real list markers (a flex/grid
   parent would swallow them, so .stack must not be used on ul/ol). */
.list {
  margin: 0;
  padding-left: 1.4em;
  font-size: var(--bb-fs-sm);
}

.list > li {
  margin: 0 0 7px;
}

.list > li:last-child {
  margin-bottom: 0;
}

.list > li::marker {
  color: var(--bb-green);
}

.list b {
  color: var(--bb-green);
}

.sidebar-layout {
  display: grid;
  grid-template-columns: minmax(190px, 250px) minmax(0, 1fr);
  gap: var(--bb-gap);
  align-items: start;
}

.sidebar-layout--right {
  grid-template-columns: minmax(0, 1fr) minmax(200px, 300px);
}

/* --------------------------------------------------------------------------
   07  Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 34px;
  padding: 6px 14px;
  border: 1px solid var(--bb-line-hi);
  border-radius: var(--bb-radius);
  background: linear-gradient(180deg, var(--bb-panel-2), var(--bb-panel));
  color: var(--bb-text);
  font: inherit;
  font-size: var(--bb-fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.12s linear, border-color 0.12s linear, background-color 0.12s linear;
}

a.btn {
  border-bottom-width: 1px;
}

.btn:hover,
.btn:focus-visible {
  color: var(--bb-green);
  border-color: var(--bb-green-dim);
  background: linear-gradient(180deg, #131c25, #0f151d);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  border-color: var(--bb-green);
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.2), rgba(125, 255, 176, 0.07));
  color: var(--bb-green);
  font-weight: 700;
  text-shadow: 0 0 6px rgba(125, 255, 176, 0.4);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.32), rgba(125, 255, 176, 0.12));
  color: #d6ffe8;
  border-color: var(--bb-green);
}

.btn--ghost {
  background: none;
  border-color: var(--bb-line);
  color: var(--bb-dim);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  color: var(--bb-green);
  background: rgba(125, 255, 176, 0.06);
}

.btn--danger {
  border-color: rgba(255, 92, 92, 0.6);
  color: var(--bb-red);
  background: linear-gradient(180deg, rgba(255, 92, 92, 0.12), rgba(255, 92, 92, 0.04));
}

.btn--danger:hover,
.btn--danger:focus-visible {
  color: #ffd2d2;
  border-color: var(--bb-red);
  background: rgba(255, 92, 92, 0.2);
}

.btn--sm {
  min-height: 26px;
  padding: 2px 9px;
  font-size: var(--bb-fs-xs);
}

.btn--icon {
  min-height: 30px;
  width: 30px;
  padding: 0;
  font-size: 13px;
}

.btn--block {
  width: 100%;
}

.btn[disabled],
.btn.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-group {
  display: inline-flex;
  align-items: stretch;
}

.btn-group > .btn {
  border-radius: 0;
  margin-left: -1px;
}

.btn-group > .btn:first-child {
  border-radius: var(--bb-radius) 0 0 var(--bb-radius);
  margin-left: 0;
}

.btn-group > .btn:last-child {
  border-radius: 0 var(--bb-radius) var(--bb-radius) 0;
}

.btn-group > .btn.is-active {
  color: var(--bb-green);
  border-color: var(--bb-green-dim);
  background: rgba(125, 255, 176, 0.12);
  z-index: 1;
}

/* --------------------------------------------------------------------------
   08  Forms
   -------------------------------------------------------------------------- */

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0 0 var(--bb-gap);
}

.field:last-child {
  margin-bottom: 0;
}

.field__label {
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.field__label--req::after {
  content: " *";
  color: var(--bb-amber);
}

.field__hint {
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
}

.field__error {
  font-size: var(--bb-fs-xs);
  color: var(--bb-red);
}

.input,
.select,
.textarea {
  width: 100%;
  min-height: 34px;
  padding: 6px 9px;
  background: #070b10;
  border: 1px solid var(--bb-line-hi);
  border-radius: var(--bb-radius);
  color: var(--bb-text);
  font: inherit;
  font-size: var(--bb-fs-sm);
}

.textarea {
  min-height: 90px;
  line-height: 1.5;
  resize: vertical;
}

.select {
  appearance: none;
  padding-right: 26px;
  background-image: linear-gradient(45deg, transparent 50%, var(--bb-dim) 50%),
    linear-gradient(135deg, var(--bb-dim) 50%, transparent 50%);
  background-position: calc(100% - 14px) 15px, calc(100% - 9px) 15px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.input::placeholder,
.textarea::placeholder {
  color: #4d6459;
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--bb-green-dim);
  outline: 2px solid var(--bb-focus);
  outline-offset: 1px;
}

.input[aria-invalid="true"],
.textarea[aria-invalid="true"],
.select[aria-invalid="true"],
.field.is-error .input,
.field.is-error .textarea,
.field.is-error .select {
  border-color: var(--bb-red);
}

.input[disabled],
.select[disabled],
.textarea[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

.checkbox {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  font-size: var(--bb-fs-sm);
  cursor: pointer;
}

.checkbox input[type="checkbox"],
.checkbox input[type="radio"] {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin: 3px 0 0;
  accent-color: var(--bb-green);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--bb-gap-sm) var(--bb-gap);
  margin-top: var(--bb-gap);
  padding-top: var(--bb-gap);
  border-top: 1px dashed var(--bb-line);
}

fieldset {
  margin: 0 0 var(--bb-gap);
  padding: var(--bb-gap);
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
}

legend {
  padding: 0 6px;
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bb-green);
}

/* --------------------------------------------------------------------------
   09  Data
   -------------------------------------------------------------------------- */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--bb-fs-sm);
}

.table th,
.table td {
  padding: 7px 10px;
  text-align: left;
  border-bottom: 1px solid var(--bb-line);
  vertical-align: middle;
}

.table thead th {
  position: sticky;
  top: 0;
  background: var(--bb-bg-2);
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-bottom-color: var(--bb-line-hi);
  white-space: nowrap;
}

.table tbody tr:hover {
  background: rgba(125, 255, 176, 0.04);
}

.table tbody tr:last-child td {
  border-bottom: 0;
}

.table--dense th,
.table--dense td {
  padding: 3px 7px;
  font-size: var(--bb-fs-xs);
}

.table__wrap {
  overflow-x: auto;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 7px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  background: rgba(98, 230, 255, 0.06);
  color: var(--bb-cyan);
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
}

a.tag:hover,
a.tag:focus-visible {
  border-color: var(--bb-cyan);
  color: #d6f6ff;
}

.tag--dim {
  background: none;
  color: var(--bb-dim);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 1px 8px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 999px;
  background: var(--bb-bg-2);
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge--ok {
  border-color: var(--bb-green-dim);
  color: var(--bb-green);
  background: rgba(125, 255, 176, 0.08);
}

.badge--warn {
  border-color: rgba(255, 200, 87, 0.5);
  color: var(--bb-amber);
  background: rgba(255, 200, 87, 0.08);
}

.badge--err {
  border-color: rgba(255, 92, 92, 0.5);
  color: var(--bb-red);
  background: rgba(255, 92, 92, 0.08);
}

.kv {
  display: grid;
  grid-template-columns: minmax(80px, max-content) minmax(0, 1fr);
  gap: 2px 12px;
  margin: 0;
  font-size: var(--bb-fs-sm);
}

.kv__k {
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  align-self: center;
}

.kv__v {
  margin: 0;
  color: var(--bb-text);
  overflow-wrap: anywhere;
}

.kv--lines .kv__k,
.kv--lines .kv__v {
  padding: 4px 0;
  border-bottom: 1px dashed var(--bb-line);
}

/* --- pager ---------------------------------------------------------------- */

.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-top: var(--bb-gap-lg);
  font-size: var(--bb-fs-sm);
}

.pager__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  min-height: 30px;
  padding: 2px 8px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-panel);
  color: var(--bb-text);
  text-decoration: none;
}

.pager__item:hover,
.pager__item:focus-visible {
  border-color: var(--bb-green-dim);
  color: var(--bb-green);
  background: rgba(125, 255, 176, 0.07);
}

.pager__item[aria-current="page"] {
  border-color: var(--bb-green);
  background: rgba(125, 255, 176, 0.14);
  color: var(--bb-green);
  font-weight: 700;
}

.pager__gap {
  padding: 0 4px;
  color: var(--bb-dim);
}

.pager__meta {
  margin-left: auto;
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.08em;
}

/* --------------------------------------------------------------------------
   10  Feedback
   -------------------------------------------------------------------------- */

.flash-stack {
  width: min(var(--bb-shell-max), calc(100% - 2 * var(--bb-pad)));
  margin: var(--bb-gap) auto 0;
  display: grid;
  gap: 6px;
}

.flash {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--bb-line-hi);
  border-left-width: 3px;
  border-radius: var(--bb-radius);
  background: var(--bb-panel);
  color: var(--bb-text);
  font-size: var(--bb-fs-sm);
}

.flash__sigil {
  flex: 0 0 auto;
  font-weight: 700;
}

.flash__msg {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
}

.flash__close {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 2px;
  background: none;
  color: var(--bb-dim);
  font: inherit;
  line-height: 1;
  cursor: pointer;
}

.flash__close:hover,
.flash__close:focus-visible {
  border-color: var(--bb-line-hi);
  color: var(--bb-text);
}

.flash--ok {
  border-left-color: var(--bb-green);
}

.flash--ok .flash__sigil {
  color: var(--bb-green);
}

.flash--warn {
  border-left-color: var(--bb-amber);
}

.flash--warn .flash__sigil {
  color: var(--bb-amber);
}

.flash--err {
  border-left-color: var(--bb-red);
}

.flash--err .flash__sigil {
  color: var(--bb-red);
}

/* --- empty ---------------------------------------------------------------- */

.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 26px 16px;
  border: 1px dashed var(--bb-line-hi);
  border-radius: var(--bb-radius);
  background: repeating-linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.012) 0 6px,
    transparent 6px 12px
  );
  text-align: center;
}

.empty__art {
  margin: 0;
  color: var(--bb-green-dim);
  font-size: clamp(8px, 1.5vw, 12px);
  line-height: 1.1;
  white-space: pre;
  overflow-x: auto;
  max-width: 100%;
}

.empty__msg {
  margin: 0;
  color: var(--bb-text);
  font-size: var(--bb-fs);
}

.empty__hint {
  margin: 0;
  color: var(--bb-dim);
  font-size: var(--bb-fs-sm);
  max-width: 60ch;
}

/* --- spinner -------------------------------------------------------------- */

.spinner {
  display: inline-block;
  width: 13px;
  height: 13px;
  border: 2px solid var(--bb-line-hi);
  border-top-color: var(--bb-green);
  border-radius: 50%;
  animation: bb-spin 0.7s linear infinite;
  vertical-align: -2px;
}

@keyframes bb-spin {
  to {
    transform: rotate(360deg);
  }
}

.is-loading {
  cursor: progress;
  opacity: 0.7;
}

/* --------------------------------------------------------------------------
   11  Media
   -------------------------------------------------------------------------- */

.track-card {
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, var(--bb-panel-2), var(--bb-panel));
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  overflow: hidden;
  transition: border-color 0.14s linear, transform 0.14s ease;
}

.track-card:hover,
.track-card:focus-within {
  border-color: var(--bb-green-dim);
  transform: translateY(-1px);
}

.track-card__art {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  border: 0;
  border-bottom: 1px solid var(--bb-line);
  background:
    linear-gradient(135deg, #0b1017 25%, #10161f 25% 50%, #0b1017 50% 75%, #10161f 75%);
  background-size: 12px 12px;
  overflow: hidden;
}

.track-card__art > a {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.track-card__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.track-card__art .player__btn {
  position: absolute;
  right: 7px;
  bottom: 7px;
  z-index: 2;
}

.track-card__badge {
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 2;
}

.track-card__body {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 9px 10px 10px;
}

.track-card__title {
  margin: 0;
  font-size: var(--bb-fs);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.3;
}

.track-card__title a {
  color: var(--bb-text);
  border-bottom: 0;
}

.track-card__title a:hover,
.track-card__title a:focus-visible {
  color: var(--bb-green);
}

.track-card__artist {
  font-size: var(--bb-fs-sm);
  color: var(--bb-dim);
}

.track-card__artist a {
  color: var(--bb-cyan);
  border-bottom: 0;
}

.track-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
  letter-spacing: 0.06em;
}

.track-card__stats {
  display: flex;
  gap: 10px;
  margin-top: auto;
  padding-top: 7px;
  border-top: 1px dashed var(--bb-line);
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
}

.track-card__stats b {
  color: var(--bb-text);
  font-weight: 600;
}

/* --- track list (compact rows) -------------------------------------------- */

.track-list {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-panel);
  overflow: hidden;
}

.track-list > li,
.track-list__row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 7px 10px;
  border-bottom: 1px solid var(--bb-line-soft);
  font-size: var(--bb-fs-sm);
}

.track-list > li:last-child,
.track-list__row:last-child {
  border-bottom: 0;
}

.track-list > li:hover,
.track-list__row:hover {
  background: rgba(125, 255, 176, 0.04);
}

/* --- waveform / player ---------------------------------------------------- */

.waveform {
  display: block;
  width: 100%;
  height: 64px;
  background:
    linear-gradient(var(--bb-line-soft), var(--bb-line-soft)) center / 100% 1px no-repeat,
    #070b10;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
}

.player {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: linear-gradient(180deg, var(--bb-panel-2), var(--bb-panel));
}

.player__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--bb-green-dim);
  border-radius: 50%;
  background: rgba(5, 9, 12, 0.82);
  color: var(--bb-green);
  font: inherit;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.12s linear, box-shadow 0.12s linear;
}

.player__btn:hover,
.player__btn:focus-visible {
  background: rgba(125, 255, 176, 0.18);
  box-shadow: var(--bb-glow);
}

.player__btn::before {
  content: "\25B6";
  transform: translateX(1px);
}

.player__btn.is-playing {
  border-color: var(--bb-amber);
  color: var(--bb-amber);
}

.player__btn.is-playing::before {
  content: "\275A\275A";
  transform: none;
  letter-spacing: -1px;
  font-size: 10px;
}

.player__btn.is-loading::before {
  content: "\00B7\00B7\00B7";
}

.player__time {
  flex: 0 0 auto;
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.player__body {
  flex: 1 1 auto;
  min-width: 0;
}

/* --- meter ---------------------------------------------------------------- */

.meter {
  position: relative;
  height: 8px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  background: #070b10;
  overflow: hidden;
}

.meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--bb-green) 0%, var(--bb-green) 68%, var(--bb-amber) 86%, var(--bb-red) 100%);
  background-size: 100vw 100%;
  transition: width 0.08s linear;
}

.meter--v {
  height: 100%;
  width: 8px;
}

.meter--v .meter__fill {
  width: 100%;
  height: 0;
  align-self: flex-end;
}

/* --------------------------------------------------------------------------
   12  Creator base (creator.css layers layout specifics on top)
   -------------------------------------------------------------------------- */

.rack {
  display: grid;
  gap: var(--bb-gap);
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  align-items: start;
}

.module {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--bb-line-hi);
  border-radius: var(--bb-radius);
  background:
    linear-gradient(180deg, #111a24 0%, #0c1219 40%, #0a1017 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03), 0 6px 18px rgba(0, 0, 0, 0.5);
}

/* Rack-ear screw holes, drawn in CSS. */
.module::before,
.module::after {
  content: "";
  position: absolute;
  top: 9px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #04070a;
  box-shadow: 0 0 0 1px var(--bb-line-hi);
  pointer-events: none;
}

.module::before {
  left: 5px;
}

.module::after {
  right: 5px;
}

.module--wide {
  grid-column: span 2;
}

.module__head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 26px;
  padding: 4px 14px;
  border-bottom: 1px solid var(--bb-line-hi);
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.06), rgba(0, 0, 0, 0.2));
  font-size: var(--bb-fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bb-green);
}

.module__head .u-dim {
  letter-spacing: 0.08em;
  font-weight: 400;
}

.module__body {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.module.is-on {
  border-color: var(--bb-green-dim);
}

.module.is-error {
  border-color: var(--bb-red);
}

/* --- knob ---------------------------------------------------------------- */

.knob {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  width: 58px;
  user-select: none;
  touch-action: none;
}

.knob__dial {
  --bb-knob-angle: 0deg;
  position: relative;
  width: 40px;
  height: 40px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 34%, #1b2734 0%, #0d141c 62%, #080d13 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 2px 4px rgba(0, 0, 0, 0.6);
  cursor: ns-resize;
}

/* Pointer line; creator.js sets --bb-knob-angle. */
.knob__dial::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 4px;
  width: 2px;
  height: 14px;
  margin-left: -1px;
  border-radius: 1px;
  background: var(--bb-green);
  box-shadow: var(--bb-glow);
  transform-origin: 50% 16px;
  transform: rotate(var(--bb-knob-angle));
}

.knob__dial:focus-visible {
  outline: 2px solid var(--bb-focus);
  outline-offset: 3px;
}

.knob__label {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bb-dim);
  text-align: center;
}

.knob__value {
  font-size: var(--bb-fs-xs);
  color: var(--bb-text);
  font-variant-numeric: tabular-nums;
}

.knob.is-active .knob__value {
  color: var(--bb-green);
}

/* --- slider -------------------------------------------------------------- */

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 20px;
  margin: 0;
  background: none;
  cursor: pointer;
}

.slider::-webkit-slider-runnable-track {
  height: 4px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  background: #070b10;
}

.slider::-moz-range-track {
  height: 4px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  background: #070b10;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 16px;
  margin-top: -7px;
  border: 1px solid var(--bb-green);
  border-radius: 2px;
  background: linear-gradient(180deg, #1d2c38, #0e151d);
  box-shadow: 0 0 6px rgba(125, 255, 176, 0.3);
}

.slider::-moz-range-thumb {
  width: 10px;
  height: 16px;
  border: 1px solid var(--bb-green);
  border-radius: 2px;
  background: linear-gradient(180deg, #1d2c38, #0e151d);
}

/* --- led ----------------------------------------------------------------- */

.led {
  display: inline-block;
  width: 8px;
  height: 8px;
  border: 1px solid var(--bb-line-hi);
  border-radius: 50%;
  background: #0a1017;
  vertical-align: middle;
  flex: 0 0 auto;
}

.led--on,
.led.is-on {
  border-color: var(--bb-green);
  background: var(--bb-green);
  box-shadow: 0 0 7px rgba(125, 255, 176, 0.8);
}

.led--amber.led--on,
.led--amber.is-on {
  border-color: var(--bb-amber);
  background: var(--bb-amber);
  box-shadow: 0 0 7px rgba(255, 200, 87, 0.8);
}

/* --- sequencer ----------------------------------------------------------- */

.seq {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.seq__row {
  display: flex;
  align-items: center;
  gap: 3px;
}

.seq__label {
  flex: 0 0 auto;
  width: 74px;
  padding-right: 6px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bb-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.seq__step {
  flex: 1 1 auto;
  min-width: 20px;
  height: 24px;
  padding: 0;
  border: 1px solid var(--bb-line-hi);
  border-radius: 2px;
  background: #080d13;
  color: var(--bb-dim);
  font: inherit;
  font-size: 9px;
  cursor: pointer;
}

/* Bar markers every 4 steps. */
.seq__step:nth-child(4n + 2) {
  border-left-color: var(--bb-dim);
}

.seq__step:hover {
  border-color: var(--bb-green-dim);
}

.seq__step.is-on {
  background: linear-gradient(180deg, rgba(125, 255, 176, 0.85), rgba(125, 255, 176, 0.45));
  border-color: var(--bb-green);
  color: var(--bb-ink);
}

.seq__step.is-playing {
  border-color: var(--bb-amber);
  box-shadow: inset 0 0 0 1px var(--bb-amber);
}

.seq__step.is-on.is-playing {
  background: var(--bb-amber);
}

/* --- scope / tabs -------------------------------------------------------- */

.scope {
  display: block;
  width: 100%;
  height: 92px;
  border: 1px solid var(--bb-line-hi);
  border-radius: var(--bb-radius);
  background:
    linear-gradient(rgba(125, 255, 176, 0.05) 1px, transparent 1px) 0 0 / 100% 12px,
    linear-gradient(90deg, rgba(125, 255, 176, 0.05) 1px, transparent 1px) 0 0 / 12px 100%,
    #05090d;
}

.tabs {
  display: flex;
  align-items: stretch;
  gap: 2px;
  border-bottom: 1px solid var(--bb-line-hi);
  overflow-x: auto;
}

.tab {
  padding: 6px 12px;
  border: 1px solid var(--bb-line);
  border-bottom: 0;
  border-radius: var(--bb-radius) var(--bb-radius) 0 0;
  background: var(--bb-bg-2);
  color: var(--bb-dim);
  font: inherit;
  font-size: var(--bb-fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  margin-bottom: -1px;
}

.tab:hover,
.tab:focus-visible {
  color: var(--bb-green);
}

.tab.is-active,
.tab[aria-selected="true"] {
  background: var(--bb-panel);
  border-color: var(--bb-line-hi);
  border-bottom: 1px solid var(--bb-panel);
  color: var(--bb-green);
}

/* --------------------------------------------------------------------------
   13  State
   -------------------------------------------------------------------------- */

.is-active {
  color: var(--bb-green);
}

/* .is-open is a marker only — each component decides what "open" looks like
   (see .menubar__item.is-open > .menubar__drop). It must not set `display`. */
.is-open > .menubar__drop,
details.is-open > *:not(summary) {
  display: block;
}

.is-on {
  color: var(--bb-green);
}

.is-playing {
  color: var(--bb-amber);
}

.is-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}

.is-error {
  color: var(--bb-red);
  border-color: var(--bb-red);
}

[hidden] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   14  Utility + overlays
   -------------------------------------------------------------------------- */

.u-dim {
  color: var(--bb-dim);
}

.u-mono {
  font-family: var(--bb-mono);
  font-variant-numeric: tabular-nums;
}

.u-right {
  text-align: right;
}

.u-center {
  text-align: center;
}

.u-nowrap {
  white-space: nowrap;
}

.u-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.u-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.ascii {
  margin: 0;
  font-family: var(--bb-mono);
  line-height: 1.05;
  white-space: pre;
  color: var(--bb-green-dim);
  overflow-x: auto;
  max-width: 100%;
  tab-size: 4;
}

.glow {
  text-shadow: 0 0 6px rgba(125, 255, 176, 0.55), 0 0 18px rgba(125, 255, 176, 0.25);
}

/* Scanline + grain overlay. One fixed, non-animated, composited layer. */
.scanlines {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.55;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.22) 0 1px,
      rgba(0, 0, 0, 0) 1px 3px
    ),
    radial-gradient(120% 100% at 50% 50%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.45) 100%);
  mix-blend-mode: multiply;
  will-change: opacity;
}

/* --------------------------------------------------------------------------
   15  Home / marketing blocks
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  display: grid;
  gap: var(--bb-gap-lg);
  padding: 22px var(--bb-gap-lg) 20px;
  margin-bottom: var(--bb-gap-lg);
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background:
    radial-gradient(80% 130% at 12% -20%, rgba(125, 255, 176, 0.1), transparent 62%),
    linear-gradient(180deg, #0b1118, #080d13);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(125, 255, 176, 0.05) 1px, transparent 1px) 0 0 / 34px 34px,
    linear-gradient(180deg, rgba(125, 255, 176, 0.05) 1px, transparent 1px) 0 0 / 34px 34px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 70%);
}

.hero__inner {
  position: relative;
  display: grid;
  gap: 14px;
  justify-items: start;
}

.hero__crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.hero__banner {
  margin: 0;
  width: 100%;
  color: var(--bb-green);
  font-size: clamp(4.6px, 1.36vw, 14px);
  line-height: 1.02;
  white-space: pre;
  text-shadow: 0 0 10px rgba(125, 255, 176, 0.4);
  overflow: hidden;
}

.hero__title {
  margin: 0;
  font-size: clamp(1.1rem, 0.9rem + 0.9vw, 1.4rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bb-text);
}

.hero__pitch {
  margin: 0;
  max-width: 68ch;
  color: var(--bb-text);
  font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
}

.hero__pitch b {
  color: var(--bb-green);
  font-weight: 600;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--bb-gap-sm) var(--bb-gap);
}

.hero__note {
  margin: 0;
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
}

.hero__specs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-line);
  overflow: hidden;
}

.hero__spec {
  display: grid;
  gap: 1px;
  padding: 7px 10px;
  background: var(--bb-panel);
}

.hero__spec dt {
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.hero__spec dd {
  margin: 0;
  font-size: var(--bb-fs-sm);
  color: var(--bb-green);
  font-variant-numeric: tabular-nums;
}

/* --- section heads -------------------------------------------------------- */

.section {
  margin: 0 0 var(--bb-gap-lg);
}

.section__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}

.section__head h2 {
  margin: 0;
  font-size: var(--bb-fs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bb-green);
  white-space: nowrap;
}

.section__head::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--bb-line-hi) 0 5px, transparent 5px 8px);
}

.section__head .section__more {
  order: 9;
  flex: 0 0 auto;
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- screenshot strip ----------------------------------------------------- */

.shots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--bb-gap);
}

.shot {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-panel);
  overflow: hidden;
  transition: border-color 0.14s linear;
}

.shot:hover,
.shot:focus-within {
  border-color: var(--bb-green-dim);
}

.shot__frame {
  position: relative;
  display: block;
  border: 0;
  background: #070b10;
  border-bottom: 1px solid var(--bb-line);
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.shot__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  /* Styles the alt text too, so a missing render degrades quietly. */
  padding: 24px 10px 10px;
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  line-height: 1.5;
}

.shot__chrome {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0.9), rgba(5, 7, 10, 0.4));
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.shot__body {
  padding: 8px 10px 10px;
}

.shot__body h3 {
  margin: 0 0 3px;
  font-size: var(--bb-fs-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.shot__body p {
  margin: 0;
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
  line-height: 1.5;
}

/* --- feature grid --------------------------------------------------------- */

.feature {
  display: flex;
  flex-direction: column;
}

.feature .panel__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 auto;
}

.feature__glyph {
  margin: 0;
  color: var(--bb-green-dim);
  font-size: 10px;
  line-height: 1.15;
  white-space: pre;
  overflow: hidden;
}

.feature p {
  margin: 0;
  font-size: var(--bb-fs-sm);
  color: var(--bb-text);
}

.feature__params {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: auto;
  padding-top: 6px;
  border-top: 1px dashed var(--bb-line);
}

/* --- stats strip ---------------------------------------------------------- */

.statstrip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: var(--bb-line);
  overflow: hidden;
}

.stat {
  display: grid;
  gap: 2px;
  padding: 12px 14px;
  background: linear-gradient(180deg, var(--bb-panel-2), var(--bb-panel));
}

.stat__num {
  font-size: clamp(1.25rem, 1rem + 1vw, 1.7rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--bb-green);
  font-variant-numeric: tabular-nums;
  text-shadow: var(--bb-glow);
}

.stat__label {
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.stat__sub {
  font-size: var(--bb-fs-xs);
  color: var(--bb-dim);
}

/* --- closing note --------------------------------------------------------- */

.callout {
  display: grid;
  gap: 10px;
  padding: var(--bb-gap-lg);
  border: 1px solid var(--bb-green-dim);
  border-radius: var(--bb-radius);
  background:
    radial-gradient(90% 160% at 100% 0%, rgba(125, 255, 176, 0.09), transparent 60%),
    var(--bb-panel);
}

.callout h2 {
  margin: 0;
  font-size: var(--bb-fs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bb-green);
}

.callout p {
  margin: 0;
  max-width: 78ch;
  font-size: var(--bb-fs-sm);
}

/* --------------------------------------------------------------------------
   16  About + error pages
   -------------------------------------------------------------------------- */

.prose {
  max-width: 78ch;
}

.prose h2 {
  margin-top: 1.4em;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose ul {
  padding-left: 1.2em;
}

.prose li::marker {
  color: var(--bb-green-dim);
}

.diagram {
  padding: var(--bb-gap);
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background: #070b10;
  overflow-x: auto;
}

.diagram pre {
  margin: 0;
  color: var(--bb-cyan);
  font-size: clamp(8px, 1.1vw, 12px);
  line-height: 1.25;
  white-space: pre;
}

.errorcard {
  display: grid;
  gap: var(--bb-gap-lg);
  justify-items: center;
  padding: clamp(18px, 4vw, 42px) var(--bb-gap);
  margin: clamp(10px, 5vh, 60px) auto;
  max-width: 780px;
  border: 1px solid var(--bb-line);
  border-radius: var(--bb-radius);
  background:
    radial-gradient(90% 120% at 50% -10%, rgba(255, 92, 92, 0.08), transparent 60%),
    var(--bb-panel);
  text-align: center;
}

.errorcard__digits {
  margin: 0;
  color: var(--bb-red);
  font-size: clamp(6px, 2.4vw, 20px);
  line-height: 1.02;
  white-space: pre;
  text-shadow: 0 0 14px rgba(255, 92, 92, 0.35);
  overflow: hidden;
}

.errorcard__label {
  margin: 0;
  font-size: var(--bb-fs-xs);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bb-dim);
}

.errorcard__msg {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  color: var(--bb-text);
}

.errorcard__trace {
  width: 100%;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  padding: 8px 10px;
  border: 1px dashed var(--bb-line-hi);
  border-radius: var(--bb-radius);
  background: #070b10;
  color: var(--bb-dim);
  font-size: var(--bb-fs-xs);
  text-align: left;
  overflow-x: auto;
}

/* --------------------------------------------------------------------------
   17  Responsive — usable from 380px up
   -------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shots {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .shots > .shot:first-child {
    grid-column: span 2;
  }
}

@media (max-width: 900px) {
  .sidebar-layout,
  .sidebar-layout--right {
    grid-template-columns: minmax(0, 1fr);
  }

  .module--wide {
    grid-column: auto;
  }
}

@media (max-width: 760px) {
  :root {
    --bb-pad: 12px;
  }

  .topbar {
    padding: 0 12px;
  }

  .topbar__tag {
    display: none;
  }

  .menubar {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
    border-top: 1px solid var(--bb-line);
  }

  .menubar__list {
    flex-wrap: wrap;
  }

  .menubar__list--end {
    margin-left: auto;
  }

  .menubar__item > a,
  .menubar__trigger {
    min-height: 38px;
    padding: 0 9px;
    font-size: var(--bb-fs-xs);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .shots,
  .shots > .shot:first-child {
    grid-template-columns: minmax(0, 1fr);
    grid-column: auto;
  }

  .hero {
    padding: 16px 12px;
  }
}

@media (max-width: 460px) {
  body {
    font-size: 13px;
  }

  .shell__main {
    padding-top: var(--bb-gap);
  }

  .topbar__mark {
    font-size: 13px;
  }

  .track-card__stats {
    flex-wrap: wrap;
  }

  .seq__label {
    width: 56px;
  }

  .kv {
    grid-template-columns: minmax(0, 1fr);
    gap: 0 0;
  }

  .kv__k {
    margin-top: 6px;
  }
}

/* --------------------------------------------------------------------------
   18  Reduced motion / print / forced colours
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  h1::after,
  .caret::after,
  .topbar__blink {
    animation: none !important;
    opacity: 1;
  }

  .scanlines {
    opacity: 0.35;
  }

  .track-card:hover,
  .track-card:focus-within {
    transform: none;
  }
}

@media print {
  .scanlines,
  .topbar,
  .statusbar,
  .player__btn {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }
}

@media (forced-colors: active) {
  .scanlines {
    display: none;
  }

  .btn,
  .panel,
  .input,
  .select,
  .textarea {
    border: 1px solid CanvasText;
  }
}