/*
 * Cyber Kit Developer Kit v1.0.0
 * A dependency-free, dark-first UI layer for cyber and terminal interfaces.
 * Public API: --cy-* custom properties and .cy-* classes only.
 */

@layer cy.reset, cy.tokens, cy.base, cy.components, cy.utilities;

@layer cy.tokens {
  :root {
    color-scheme: dark;
    --cy-hue-primary: 132;
    --cy-hue-secondary: 174;
    --cy-primary: hsl(var(--cy-hue-primary) 100% 58%);
    --cy-secondary: hsl(var(--cy-hue-secondary) 100% 52%);
    --cy-info: hsl(190 100% 62%);
    --cy-success: hsl(132 100% 58%);
    --cy-warning: hsl(48 100% 62%);
    --cy-danger: hsl(348 100% 66%);

    --cy-bg: #020504;
    --cy-bg-raised: #06100c;
    --cy-text: rgb(229 255 237 / 96%);
    --cy-text-muted: rgb(184 222 194 / 70%);
    --cy-text-dim: rgb(150 200 164 / 48%);
    --cy-glass: rgb(4 19 12 / 88%);
    --cy-glass-strong: rgb(3 13 9 / 97%);
    --cy-glass-soft: rgb(76 255 126 / 6%);
    --cy-stroke: rgb(88 255 135 / 20%);
    --cy-stroke-strong: rgb(88 255 135 / 42%);

    --cy-font: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --cy-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --cy-radius-xs: 2px;
    --cy-radius-sm: 3px;
    --cy-radius-md: 4px;
    --cy-radius-lg: 6px;
    --cy-radius-pill: 999px;
    --cy-space-1: .25rem;
    --cy-space-2: .5rem;
    --cy-space-3: .75rem;
    --cy-space-4: 1rem;
    --cy-space-5: 1.5rem;
    --cy-space-6: 2rem;
    --cy-space-7: 3rem;
    --cy-cut: 14px;
    --cy-blur: 8px;
    --cy-saturation: 120%;
    --cy-shadow-sm: 0 8px 24px rgb(0 0 0 / 36%);
    --cy-shadow-lg: 0 24px 70px rgb(0 0 0 / 54%);
    --cy-glow: 0 0 28px hsl(var(--cy-hue-primary) 100% 50% / 18%);
    --cy-speed-fast: 90ms;
    --cy-speed: 180ms;
    --cy-ease: cubic-bezier(.22, .8, .25, 1);
    --cy-content: 72rem;
  }
}

@layer cy.reset {
  .cy-app, .cy-app *, .cy-app *::before, .cy-app *::after { box-sizing: border-box; }
  .cy-app :where(button, input, textarea, select) { font: inherit; }
  .cy-app :where(img, picture, video, canvas, svg) { display: block; max-width: 100%; }
  .cy-app :where(table) { border-collapse: collapse; border-spacing: 0; }
  .cy-app :where(button, select) { text-transform: none; }
}

@layer cy.base {
  .cy-app {
    min-height: 100dvh;
    margin: 0;
    color: var(--cy-text);
    font-family: var(--cy-font);
    line-height: 1.5;
    background:
      linear-gradient(rgb(68 255 120 / 3%) 1px, transparent 1px),
      linear-gradient(90deg, rgb(68 255 120 / 3%) 1px, transparent 1px),
      radial-gradient(55rem 30rem at 80% -10%, rgb(0 255 170 / 10%), transparent 60%),
      linear-gradient(180deg, var(--cy-bg), var(--cy-bg-raised));
    background-size: 32px 32px, 32px 32px, auto, auto;
    background-attachment: fixed;
  }

  .cy-app::before {
    position: fixed;
    z-index: -1;
    inset: 0;
    content: "";
    pointer-events: none;
    opacity: .14;
    background: repeating-linear-gradient(180deg, transparent 0 3px, rgb(120 255 156 / 12%) 4px);
  }

  .cy-app :where(h1, h2, h3, h4, h5, h6) { margin-block: 0 .55em; font-family: var(--cy-font-mono); letter-spacing: -.045em; line-height: 1.08; text-wrap: balance; }
  .cy-app :where(h1) { font-size: clamp(2.25rem, 7vw, 5rem); }
  .cy-app :where(h2) { font-size: clamp(1.75rem, 4vw, 3rem); }
  .cy-app :where(h3) { font-size: clamp(1.3rem, 2.5vw, 2rem); }
  .cy-app :where(h4) { font-size: 1.2rem; }
  .cy-app :where(h5, h6) { font-size: 1rem; }
  .cy-app :where(p) { margin-block: 0 1em; }
  .cy-app :where(a) { color: var(--cy-primary); text-decoration-thickness: 1px; text-underline-offset: .2em; }
  .cy-app :where(a:hover) { color: var(--cy-secondary); }
  .cy-app :where(ul, ol) { padding-inline-start: 1.4rem; }
  .cy-app :where(li + li) { margin-block-start: .3rem; }
  .cy-app :where(dt) { font-weight: 750; }
  .cy-app :where(dd) { margin: .2rem 0 .85rem; color: var(--cy-text-muted); }
  .cy-app :where(hr) { height: 1px; margin-block: var(--cy-space-5); border: 0; background: var(--cy-stroke); }
  .cy-app :where(mark) { padding: .08em .3em; border-radius: .3em; background: color-mix(in srgb, var(--cy-warning) 32%, transparent); color: var(--cy-text); }
  .cy-app :where(abbr[title]) { cursor: help; text-decoration-style: dotted; text-underline-offset: .2em; }
  .cy-app :where(kbd) { padding: .15em .45em; border: 1px solid var(--cy-stroke-strong); border-radius: 2px; background: var(--cy-glass-soft); box-shadow: inset 0 -2px 0 rgb(0 0 0 / 40%); font: .82em var(--cy-font-mono); }
  .cy-app :where(code, samp, var) { font-family: var(--cy-font-mono); }
  .cy-app :where(:not(pre) > code) { padding: .12em .35em; border-radius: 2px; background: rgb(68 255 120 / 8%); color: var(--cy-primary); }
  .cy-app :where(pre) { max-width: 100%; padding: var(--cy-space-4); overflow: auto; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: rgb(0 0 0 / 28%); }
  .cy-app :where(pre code) { color: inherit; }
  .cy-app :where(blockquote) { margin: var(--cy-space-5) 0; padding: .2rem 0 .2rem var(--cy-space-4); border-inline-start: 3px solid var(--cy-primary); color: var(--cy-text-muted); font-size: 1.1rem; }
  .cy-app :where(blockquote cite) { display: block; margin-top: .5rem; color: var(--cy-text-dim); font-size: .82rem; font-style: normal; }
  .cy-app :where(figure) { margin: 0; }
  .cy-app :where(figcaption) { margin-top: .55rem; color: var(--cy-text-muted); font-size: .82rem; }
  .cy-app :where(img, video) { height: auto; border-radius: var(--cy-radius-md); }
  .cy-app :where(audio) { width: 100%; }
  .cy-app :where(address) { color: var(--cy-text-muted); font-style: normal; }
  .cy-app :where(summary) { cursor: pointer; }
  .cy-app :where(::selection) { background: hsl(var(--cy-hue-primary) 100% 62% / 38%); color: white; }
  .cy-app :where(:focus-visible) { outline: 3px solid color-mix(in srgb, var(--cy-secondary) 72%, white); outline-offset: 3px; }
  .cy-container { width: min(calc(100% - 2rem), var(--cy-content)); margin-inline: auto; }
}

@layer cy.components {
  .cy-glass, .cy-card, .cy-panel, .cy-toolbar, .cy-modal {
    border: 1px solid var(--cy-stroke);
    background: linear-gradient(135deg, rgb(68 255 120 / 5%), transparent 42%), var(--cy-glass);
    box-shadow: var(--cy-shadow-sm);
    -webkit-backdrop-filter: blur(var(--cy-blur)) saturate(var(--cy-saturation));
    backdrop-filter: blur(var(--cy-blur)) saturate(var(--cy-saturation));
  }

  .cy-card, .cy-panel { position: relative; border-radius: var(--cy-radius-lg); clip-path: polygon(0 0, calc(100% - var(--cy-cut)) 0, 100% var(--cy-cut), 100% 100%, var(--cy-cut) 100%, 0 calc(100% - var(--cy-cut))); }
  .cy-card { padding: var(--cy-space-5); overflow: clip; }
  .cy-panel { padding: var(--cy-space-4); }
  .cy-card--interactive { transition: transform var(--cy-speed-fast) var(--cy-ease), border-color var(--cy-speed) var(--cy-ease), box-shadow var(--cy-speed) var(--cy-ease); }
  .cy-card--interactive:hover { border-color: var(--cy-stroke-strong); box-shadow: var(--cy-shadow-lg), inset 3px 0 var(--cy-primary); transform: translateY(-2px); }
  .cy-card--interactive:active { transform: scale(.985); }
  .cy-card--glow::after { position: absolute; inset: auto -15% -55% 20%; height: 65%; content: ""; pointer-events: none; background: linear-gradient(90deg, var(--cy-primary), var(--cy-secondary)); filter: blur(55px); opacity: .15; }

  .cy-btn {
    min-height: 44px;
    padding: .68rem 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    border: 1px solid var(--cy-stroke);
    border-radius: var(--cy-radius-sm);
    background: var(--cy-glass-soft);
    color: var(--cy-text);
    font-family: var(--cy-font-mono);
    font-size: .84rem;
    font-weight: 720;
    letter-spacing: .045em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    box-shadow: var(--cy-shadow-sm);
    transition: transform var(--cy-speed-fast) var(--cy-ease), background var(--cy-speed) var(--cy-ease), filter var(--cy-speed) var(--cy-ease);
  }
  .cy-btn:hover { border-color: var(--cy-primary); background: rgb(68 255 120 / 10%); color: var(--cy-primary); }
  .cy-btn:active { transform: scale(.97); }
  .cy-btn:disabled, .cy-btn[aria-disabled="true"] { opacity: .48; pointer-events: none; }
  .cy-btn--primary { border-color: var(--cy-primary); background: var(--cy-primary); color: #001b09; box-shadow: var(--cy-glow), var(--cy-shadow-sm); }
  .cy-btn--primary:hover { background: color-mix(in srgb, var(--cy-primary) 84%, white); color: #001b09; filter: brightness(1.05); }
  .cy-btn--quiet { border-color: transparent; background: transparent; box-shadow: none; }
  .cy-btn--danger { border-color: color-mix(in srgb, var(--cy-danger) 35%, transparent); color: color-mix(in srgb, var(--cy-danger) 75%, white); }
  .cy-btn--icon { width: 44px; padding: 0; border-radius: var(--cy-radius-sm); }
  .cy-btn--sm { min-height: 36px; padding: .45rem .75rem; font-size: .875rem; }
  .cy-btn--lg { min-height: 52px; padding: .85rem 1.25rem; border-radius: var(--cy-radius-md); font-size: 1.05rem; }
  .cy-btn--block { width: 100%; }
  .cy-btn-group { display: inline-flex; }
  .cy-btn-group > .cy-btn { border-radius: 0; box-shadow: none; }
  .cy-btn-group > .cy-btn:first-child { border-radius: var(--cy-radius-sm) 0 0 var(--cy-radius-sm); }
  .cy-btn-group > .cy-btn:last-child { border-radius: 0 var(--cy-radius-sm) var(--cy-radius-sm) 0; }
  .cy-btn-group > .cy-btn + .cy-btn { margin-inline-start: -1px; }

  .cy-field { display: grid; gap: .45rem; }
  .cy-label { color: var(--cy-text-muted); font-family: var(--cy-font-mono); font-size: .76rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
  .cy-input, .cy-select, .cy-textarea {
    width: 100%;
    min-height: 46px;
    padding: .7rem .85rem;
    border: 1px solid var(--cy-stroke);
    border-radius: var(--cy-radius-sm);
    background: rgb(0 0 0 / 32%);
    color: var(--cy-text);
    transition: border-color var(--cy-speed) var(--cy-ease), background var(--cy-speed) var(--cy-ease), box-shadow var(--cy-speed) var(--cy-ease);
  }
  .cy-textarea { min-height: 7rem; resize: vertical; }
  .cy-input::placeholder, .cy-textarea::placeholder { color: var(--cy-text-dim); }
  .cy-input:focus, .cy-select:focus, .cy-textarea:focus { border-color: var(--cy-primary); outline: 0; background: rgb(0 18 8 / 68%); box-shadow: 0 0 0 3px rgb(68 255 120 / 12%), inset 3px 0 var(--cy-primary); }
  :is(.cy-input, .cy-select, .cy-textarea):disabled { opacity: .5; cursor: not-allowed; }
  :is(.cy-input, .cy-textarea):read-only { background: rgb(255 255 255 / 3%); color: var(--cy-text-muted); }
  .cy-help { color: var(--cy-text-dim); font-size: .78rem; }
  .cy-fieldset { min-width: 0; margin: 0; padding: var(--cy-space-4); border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); }
  .cy-legend { padding-inline: .45rem; font-weight: 760; }
  .cy-field[data-state="error"] :is(.cy-input, .cy-select, .cy-textarea) { border-color: color-mix(in srgb, var(--cy-danger) 70%, transparent); }
  .cy-field[data-state="error"] .cy-help { color: color-mix(in srgb, var(--cy-danger) 70%, white); }
  .cy-input-group { display: flex; }
  .cy-input-group > :is(.cy-input, .cy-select) { min-width: 0; border-radius: 0; }
  .cy-input-group > :first-child { border-radius: var(--cy-radius-sm) 0 0 var(--cy-radius-sm); }
  .cy-input-group > :last-child { border-radius: 0 var(--cy-radius-sm) var(--cy-radius-sm) 0; }
  .cy-input-group > * + * { margin-inline-start: -1px; }
  .cy-input-addon { padding-inline: .8rem; display: inline-flex; align-items: center; border: 1px solid var(--cy-stroke); background: rgb(255 255 255 / 8%); color: var(--cy-text-muted); white-space: nowrap; }
  .cy-check { min-height: 44px; display: inline-flex; align-items: center; gap: .65rem; cursor: pointer; }
  .cy-check > input { width: 1.2rem; height: 1.2rem; margin: 0; accent-color: var(--cy-primary); }
  .cy-switch { min-height: 44px; display: inline-flex; align-items: center; gap: .7rem; cursor: pointer; }
  .cy-switch > input { width: 2.8rem; height: 1.55rem; margin: 0; appearance: none; border: 1px solid var(--cy-stroke-strong); border-radius: var(--cy-radius-pill); background: rgb(255 255 255 / 10%); cursor: pointer; transition: background var(--cy-speed) var(--cy-ease); }
  .cy-switch > input::before { width: 1.15rem; aspect-ratio: 1; margin: .14rem; display: block; content: ""; border-radius: 50%; background: white; box-shadow: var(--cy-shadow-sm); transition: transform var(--cy-speed) var(--cy-ease); }
  .cy-switch > input:checked { border-color: transparent; background: linear-gradient(135deg, var(--cy-primary), var(--cy-secondary)); }
  .cy-switch > input:checked::before { transform: translateX(1.22rem); }
  .cy-switch > input:focus-visible { outline: 3px solid color-mix(in srgb, var(--cy-secondary) 72%, white); outline-offset: 3px; }
  .cy-range { width: 100%; accent-color: var(--cy-primary); cursor: pointer; }
  .cy-file { width: 100%; color: var(--cy-text-muted); }
  .cy-file::file-selector-button { min-height: 40px; margin-inline-end: .7rem; padding: .5rem .8rem; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-sm); background: var(--cy-glass-soft); color: var(--cy-text); cursor: pointer; }

  .cy-badge { width: fit-content; padding: .3rem .6rem; display: inline-flex; align-items: center; gap: .35rem; border: 1px solid var(--cy-stroke); border-radius: 2px; background: var(--cy-glass-soft); color: var(--cy-text-muted); font-family: var(--cy-font-mono); font-size: .7rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
  .cy-badge::before { content: "//"; color: var(--cy-primary); }
  .cy-badge--accent { border-color: rgb(68 255 120 / 38%); background: rgb(68 255 120 / 10%); color: var(--cy-primary); }

  .cy-alert { padding: .85rem 1rem; display: flex; gap: .65rem; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-soft); }
  .cy-alert--success { border-color: color-mix(in srgb, var(--cy-success) 35%, transparent); }
  .cy-alert--warning { border-color: color-mix(in srgb, var(--cy-warning) 35%, transparent); }
  .cy-alert--danger { border-color: color-mix(in srgb, var(--cy-danger) 35%, transparent); }

  .cy-segmented { padding: .3rem; display: flex; gap: .25rem; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: rgb(0 0 0 / 18%); }
  .cy-segmented__item { min-height: 38px; flex: 1; border: 0; border-radius: calc(var(--cy-radius-md) - .25rem); background: transparent; color: var(--cy-text-muted); font-weight: 700; cursor: pointer; }
  .cy-segmented__item[aria-selected="true"], .cy-segmented__item.is-active { background: rgb(255 255 255 / 11%); color: var(--cy-text); box-shadow: inset 0 1px 0 rgb(255 255 255 / 14%), var(--cy-shadow-sm); }

  .cy-list { margin: 0; padding: 0; overflow: clip; list-style: none; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-lg); background: var(--cy-glass); }
  .cy-list__item { padding: .9rem 1rem; display: flex; align-items: center; gap: .8rem; color: inherit; text-decoration: none; }
  .cy-list__item + .cy-list__item { border-top: 1px solid var(--cy-stroke); }
  .cy-list__item:is(a, button):hover { background: var(--cy-glass-soft); }
  .cy-list__content { min-width: 0; flex: 1; }
  .cy-list__title { font-weight: 730; }
  .cy-list__meta { color: var(--cy-text-muted); font-size: .84rem; }

  .cy-avatar { width: 42px; aspect-ratio: 1; display: inline-grid; place-items: center; overflow: hidden; border: 1px solid var(--cy-stroke-strong); border-radius: 2px; background: rgb(68 255 120 / 12%); color: var(--cy-primary); font-family: var(--cy-font-mono); font-size: .7rem; font-weight: 800; }
  .cy-avatar > img { width: 100%; height: 100%; object-fit: cover; }
  .cy-skeleton { border-radius: var(--cy-radius-xs); background: linear-gradient(100deg, rgb(255 255 255 / 6%) 25%, rgb(255 255 255 / 13%) 45%, rgb(255 255 255 / 6%) 65%) 0 0 / 200% 100%; animation: cy-shimmer 1.5s linear infinite; }
  .cy-spinner { width: 1.4rem; aspect-ratio: 1; display: inline-block; border: 2px solid rgb(255 255 255 / 22%); border-top-color: currentColor; border-radius: 50%; animation: cy-spin .7s linear infinite; }
  .cy-progress { width: 100%; height: .65rem; overflow: hidden; border: 0; border-radius: var(--cy-radius-pill); background: rgb(255 255 255 / 9%); }
  .cy-progress::-webkit-progress-bar { background: rgb(255 255 255 / 9%); }
  .cy-progress::-webkit-progress-value { border-radius: inherit; background: linear-gradient(90deg, var(--cy-primary), var(--cy-secondary)); }
  .cy-progress::-moz-progress-bar { border-radius: inherit; background: linear-gradient(90deg, var(--cy-primary), var(--cy-secondary)); }
  .cy-meter { width: 100%; height: .75rem; accent-color: var(--cy-success); }

  .cy-table-wrap { max-width: 100%; overflow-x: auto; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-lg); }
  .cy-table { width: 100%; min-width: 38rem; background: var(--cy-glass); text-align: left; }
  .cy-table :is(th, td) { padding: .8rem 1rem; border-bottom: 1px solid var(--cy-stroke); }
  .cy-table th { color: var(--cy-text-muted); font-size: .78rem; letter-spacing: .04em; text-transform: uppercase; }
  .cy-table tbody tr:last-child td { border-bottom: 0; }
  .cy-table tbody tr:hover { background: var(--cy-glass-soft); }
  .cy-table caption { padding: .75rem 1rem; color: var(--cy-text-muted); text-align: left; caption-side: bottom; }

  .cy-breadcrumb { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .45rem; list-style: none; color: var(--cy-text-muted); font-size: .86rem; }
  .cy-breadcrumb > li + li::before { margin-inline-end: .45rem; content: "/"; color: var(--cy-text-dim); }
  .cy-breadcrumb a { color: inherit; }
  .cy-pagination { margin: 0; padding: 0; display: flex; gap: .35rem; list-style: none; }
  .cy-pagination a, .cy-pagination span { min-width: 42px; min-height: 42px; display: grid; place-items: center; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-sm); background: var(--cy-glass-soft); color: var(--cy-text); text-decoration: none; }
  .cy-pagination [aria-current="page"] { border-color: transparent; background: linear-gradient(135deg, var(--cy-primary), var(--cy-secondary)); }
  .cy-pagination [aria-disabled="true"] { opacity: .4; }
  .cy-nav { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem; list-style: none; }
  .cy-nav a { min-height: 42px; padding: .55rem .8rem; display: inline-flex; align-items: center; border-radius: var(--cy-radius-sm); color: var(--cy-text-muted); text-decoration: none; }
  .cy-nav a:hover, .cy-nav a[aria-current="page"] { background: var(--cy-glass-soft); color: var(--cy-text); }

  .cy-details { overflow: clip; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-soft); }
  .cy-details > summary { min-height: 48px; padding: .75rem 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-weight: 740; list-style: none; }
  .cy-details > summary::-webkit-details-marker { display: none; }
  .cy-details > summary::after { content: "+"; color: var(--cy-text-muted); font-size: 1.25rem; }
  .cy-details[open] > summary::after { content: "−"; }
  .cy-details__body { padding: 0 1rem 1rem; color: var(--cy-text-muted); }
  .cy-accordion { display: grid; gap: .6rem; }

  .cy-menu { min-width: 13rem; margin: 0; padding: .4rem; list-style: none; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-strong); box-shadow: var(--cy-shadow-lg); -webkit-backdrop-filter: blur(var(--cy-blur)); backdrop-filter: blur(var(--cy-blur)); }
  .cy-menu__item { width: 100%; min-height: 40px; padding: .55rem .7rem; display: flex; align-items: center; gap: .6rem; border: 0; border-radius: var(--cy-radius-xs); background: transparent; color: var(--cy-text); text-align: left; text-decoration: none; cursor: pointer; }
  .cy-menu__item:hover, .cy-menu__item:focus-visible { background: var(--cy-glass-soft); }
  .cy-menu__separator { height: 1px; margin: .35rem; background: var(--cy-stroke); }
  .cy-menu__item--danger { color: color-mix(in srgb, var(--cy-danger) 72%, white); }
  .cy-dropdown { position: relative; width: fit-content; }
  .cy-dropdown > .cy-menu { position: absolute; z-index: 40; top: calc(100% + .45rem); right: 0; }
  .cy-tooltip { width: max-content; max-width: 18rem; padding: .4rem .6rem; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-xs); background: var(--cy-glass-strong); color: var(--cy-text); box-shadow: var(--cy-shadow-sm); font-size: .76rem; }
  .cy-popover { width: min(22rem, calc(100vw - 2rem)); padding: var(--cy-space-4); border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-strong); color: var(--cy-text); box-shadow: var(--cy-shadow-lg); }
  :is(.cy-tooltip, .cy-popover):popover-open { animation: cy-pop-in var(--cy-speed) var(--cy-ease); }

  .cy-toast-region { position: fixed; z-index: 60; top: max(1rem, env(safe-area-inset-top)); right: max(1rem, env(safe-area-inset-right)); width: min(24rem, calc(100% - 2rem)); display: grid; gap: .6rem; pointer-events: none; }
  .cy-toast { padding: .8rem 1rem; display: flex; align-items: flex-start; gap: .7rem; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-strong); box-shadow: var(--cy-shadow-lg); -webkit-backdrop-filter: blur(var(--cy-blur)); backdrop-filter: blur(var(--cy-blur)); pointer-events: auto; }
  .cy-toast__content { min-width: 0; flex: 1; }
  .cy-toast__title { font-weight: 760; }
  .cy-toast__message { color: var(--cy-text-muted); font-size: .84rem; }
  .cy-alert.is-leaving, .cy-toast.is-leaving { pointer-events: none; animation: cy-dismiss var(--cy-speed) var(--cy-ease) forwards; }

  .cy-media { display: flex; align-items: flex-start; gap: .85rem; }
  .cy-media__body { min-width: 0; flex: 1; }
  .cy-stat { padding: var(--cy-space-4); border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-soft); }
  .cy-stat__value { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 820; letter-spacing: -.04em; }
  .cy-stat__label { color: var(--cy-text-muted); font-size: .82rem; }
  .cy-empty { padding: clamp(2rem, 8vw, 5rem) 1rem; display: grid; place-items: center; text-align: center; }
  .cy-empty__icon { width: 64px; aspect-ratio: 1; margin-bottom: 1rem; display: grid; place-items: center; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-md); background: var(--cy-glass-soft); font-size: 1.6rem; }

  .cy-steps { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(var(--cy-step-count, 3), 1fr); list-style: none; counter-reset: step; }
  .cy-step { position: relative; display: grid; justify-items: center; gap: .45rem; color: var(--cy-text-dim); font-size: .78rem; text-align: center; counter-increment: step; }
  .cy-step::before { position: relative; z-index: 1; width: 2rem; aspect-ratio: 1; display: grid; place-items: center; content: counter(step); border: 1px solid var(--cy-stroke); border-radius: 50%; background: var(--cy-bg-raised); }
  .cy-step + .cy-step::after { position: absolute; top: 1rem; right: 50%; width: 100%; height: 1px; content: ""; background: var(--cy-stroke); }
  .cy-step.is-complete, .cy-step[aria-current="step"] { color: var(--cy-text); }
  .cy-step.is-complete::before, .cy-step[aria-current="step"]::before { border-color: transparent; background: linear-gradient(135deg, var(--cy-primary), var(--cy-secondary)); color: white; }

  .cy-timeline { margin: 0; padding: 0 0 0 1rem; list-style: none; border-inline-start: 1px solid var(--cy-stroke); }
  .cy-timeline__item { position: relative; padding: 0 0 1.3rem 1rem; }
  .cy-timeline__item::before { position: absolute; top: .35rem; left: calc(-1rem - 5px); width: 9px; aspect-ratio: 1; content: ""; border: 2px solid var(--cy-bg-raised); border-radius: 50%; background: var(--cy-primary); box-shadow: 0 0 0 2px var(--cy-stroke); }
  .cy-timeline__time { color: var(--cy-text-dim); font-size: .76rem; }

  .cy-ratio { position: relative; width: 100%; overflow: hidden; border-radius: var(--cy-radius-md); aspect-ratio: var(--cy-ratio, 16 / 9); }
  .cy-ratio > :first-child { width: 100%; height: 100%; border: 0; object-fit: cover; }

  .cy-toolbar { position: sticky; z-index: 20; top: 0; padding: .65rem max(1rem, env(safe-area-inset-left)); display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-width: 0 0 1px; background: color-mix(in srgb, var(--cy-glass) 88%, transparent); }
  .cy-bottomnav { position: fixed; z-index: 30; right: max(1rem, env(safe-area-inset-right)); bottom: max(1rem, env(safe-area-inset-bottom)); left: max(1rem, env(safe-area-inset-left)); width: min(calc(100% - 2rem), 34rem); min-height: 64px; margin-inline: auto; padding: .45rem; display: flex; align-items: center; justify-content: space-around; border: 1px solid var(--cy-stroke); border-radius: var(--cy-radius-lg); background: var(--cy-glass-strong); box-shadow: var(--cy-shadow-lg); -webkit-backdrop-filter: blur(var(--cy-blur)) saturate(var(--cy-saturation)); backdrop-filter: blur(var(--cy-blur)) saturate(var(--cy-saturation)); }
  .cy-bottomnav__item { min-width: 58px; min-height: 48px; padding: .35rem .55rem; display: grid; place-items: center; gap: .1rem; border-radius: var(--cy-radius-sm); color: var(--cy-text-muted); font-size: .72rem; text-decoration: none; }
  .cy-bottomnav__item[aria-current="page"], .cy-bottomnav__item.is-active { background: var(--cy-glass-soft); color: var(--cy-text); }

  .cy-modal { width: min(calc(100% - 2rem), 34rem); padding: 0; border-radius: var(--cy-radius-lg); color: var(--cy-text); }
  .cy-modal::backdrop { background: rgb(0 0 0 / 58%); -webkit-backdrop-filter: blur(5px); backdrop-filter: blur(5px); }
  .cy-modal__header, .cy-modal__body, .cy-modal__footer { padding: var(--cy-space-4); }
  .cy-modal__header, .cy-modal__footer { display: flex; align-items: center; gap: .75rem; }
  .cy-modal__header { justify-content: space-between; border-bottom: 1px solid var(--cy-stroke); }
  .cy-modal__footer { justify-content: flex-end; border-top: 1px solid var(--cy-stroke); }
}

@layer cy.utilities {
  .cy-stack { display: flex; flex-direction: column; gap: var(--cy-stack-gap, var(--cy-space-4)); }
  .cy-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--cy-cluster-gap, var(--cy-space-3)); }
  .cy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--cy-grid-min, 16rem)), 1fr)); gap: var(--cy-grid-gap, var(--cy-space-4)); }
  .cy-muted { color: var(--cy-text-muted); }
  .cy-dim { color: var(--cy-text-dim); }
  .cy-mono { font-family: var(--cy-font-mono); }
  .cy-kicker { color: var(--cy-primary); font-family: var(--cy-font-mono); font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; }
  .cy-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
}

@keyframes cy-shimmer { to { background-position-x: -200%; } }
@keyframes cy-spin { to { transform: rotate(1turn); } }
@keyframes cy-pop-in { from { opacity: 0; transform: translateY(5px) scale(.98); } }
@keyframes cy-dismiss { to { opacity: 0; transform: translateY(-6px) scale(.98); } }

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .cy-glass, .cy-card, .cy-panel, .cy-toolbar, .cy-modal, .cy-bottomnav { background: var(--cy-glass-strong); }
}

@media (prefers-reduced-motion: reduce) {
  .cy-app *, .cy-app *::before, .cy-app *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (prefers-contrast: more) {
  :root { --cy-stroke: rgb(255 255 255 / 32%); --cy-text-muted: rgb(255 255 255 / 78%); }
}