:root {
    --suite-bg: #06112f;
    --suite-bg-deep: #04091c;
    --suite-panel: rgba(9, 20, 55, 0.74);
    --suite-panel-strong: rgba(10, 24, 66, 0.92);
    --suite-text: #f8fbff;
    --suite-text-secondary: #aab8d9;
    --suite-line: rgba(87, 212, 255, 0.18);
    --suite-accent: #57d4ff;
    --suite-accent-strong: #15b8ff;
    --suite-shadow: 0 24px 64px rgba(0, 0, 0, 0.22);
    --suite-theme-bg-light: #eef5ff;
    --suite-theme-bg-dark: #06112f;
    --suite-theme-bg-deep-light: #dfeaf8;
    --suite-theme-bg-deep-dark: #04091c;
    --suite-theme-text-light: #10283d;
    --suite-theme-text-dark: #f8fbff;
    --suite-theme-muted-light: #5e768b;
    --suite-theme-muted-dark: #aab8d9;
    --suite-theme-line-light: rgba(20, 120, 200, 0.16);
    --suite-theme-line-dark: rgba(87, 212, 255, 0.18);
}

body[data-demo-mode='light'] {
    --suite-bg: var(--suite-theme-bg-light);
    --suite-bg-deep: var(--suite-theme-bg-deep-light);
    /* Frosted bar: blend toward theme page tint so the header matches cyan / amber / rose, not a generic white strip */
    --suite-panel: color-mix(in srgb, white 78%, var(--suite-theme-bg-light) 22%);
    --suite-panel-strong: color-mix(in srgb, white 86%, var(--suite-theme-bg-light) 14%);
    --suite-text: var(--suite-theme-text-light);
    --suite-text-secondary: var(--suite-theme-muted-light);
    --suite-line: var(--suite-theme-line-light);
    --suite-shadow: 0 24px 64px rgba(19, 48, 73, 0.1);
}

body[data-demo-mode='dark'] {
    --suite-bg: var(--suite-theme-bg-dark);
    --suite-bg-deep: var(--suite-theme-bg-deep-dark);
    /* Glassy header/footer: derive from active theme dark bg, not fixed blue RGBA */
    --suite-panel: color-mix(in srgb, var(--suite-theme-bg-dark) 78%, transparent);
    --suite-panel-strong: color-mix(in srgb, var(--suite-theme-bg-deep-dark) 86%, transparent);
    --suite-text: var(--suite-theme-text-dark);
    --suite-text-secondary: var(--suite-theme-muted-dark);
    --suite-line: var(--suite-theme-line-dark);
    --suite-shadow: 0 24px 64px rgba(0, 0, 0, 0.22);
}

body[data-demo-theme='cyan'] {
    --suite-accent: #57d4ff;
    --suite-accent-strong: #15b8ff;
    --suite-theme-bg-light: #eef5ff;
    --suite-theme-bg-deep-light: #dfeaf8;
    --suite-theme-bg-dark: #06112f;
    --suite-theme-bg-deep-dark: #04091c;
    --suite-theme-text-light: #10283d;
    --suite-theme-text-dark: #f8fbff;
    --suite-theme-muted-light: #5e768b;
    --suite-theme-muted-dark: #aab8d9;
    --suite-theme-line-light: rgba(20, 120, 200, 0.16);
    --suite-theme-line-dark: rgba(87, 212, 255, 0.18);
}

body[data-demo-theme='blue'] {
    --suite-accent: #6da8ff;
    --suite-accent-strong: #2f67e8;
    --suite-theme-bg-light: #edf1ff;
    --suite-theme-bg-deep-light: #dfe6fb;
    --suite-theme-bg-dark: #0a1235;
    --suite-theme-bg-deep-dark: #060c23;
    --suite-theme-text-light: #17305a;
    --suite-theme-text-dark: #f0f5ff;
    --suite-theme-muted-light: #667ca0;
    --suite-theme-muted-dark: #a8b7e0;
    --suite-theme-line-light: rgba(77, 111, 194, 0.18);
    --suite-theme-line-dark: rgba(109, 168, 255, 0.2);
}

body[data-demo-theme='mint'] {
    --suite-accent: #57e3c1;
    --suite-accent-strong: #11b68e;
    --suite-theme-bg-light: #ebfaf5;
    --suite-theme-bg-deep-light: #d7f0e7;
    --suite-theme-bg-dark: #071f24;
    --suite-theme-bg-deep-dark: #041317;
    --suite-theme-text-light: #173936;
    --suite-theme-text-dark: #ecfbf7;
    --suite-theme-muted-light: #5f7d76;
    --suite-theme-muted-dark: #9dc8bf;
    --suite-theme-line-light: rgba(35, 157, 127, 0.16);
    --suite-theme-line-dark: rgba(87, 227, 193, 0.18);
}

body[data-demo-theme='amber'] {
    --suite-accent: #f0a43a;
    --suite-accent-strong: #9e3f35;
    --suite-theme-bg-light: #fff4df;
    --suite-theme-bg-deep-light: #f5dfbf;
    --suite-theme-bg-dark: #241109;
    --suite-theme-bg-deep-dark: #160904;
    --suite-theme-text-light: #57291b;
    --suite-theme-text-dark: #ffe7cc;
    --suite-theme-muted-light: #91664a;
    --suite-theme-muted-dark: #d7b08a;
    --suite-theme-line-light: rgba(181, 105, 58, 0.18);
    --suite-theme-line-dark: rgba(240, 164, 58, 0.2);
}

body[data-demo-theme='rose'] {
    --suite-accent: #ef8aa8;
    --suite-accent-strong: #9f3e68;
    --suite-theme-bg-light: #fff0f5;
    --suite-theme-bg-deep-light: #f6dde7;
    --suite-theme-bg-dark: #26111f;
    --suite-theme-bg-deep-dark: #170a13;
    --suite-theme-text-light: #4d2139;
    --suite-theme-text-dark: #ffe8f2;
    --suite-theme-muted-light: #8d6174;
    --suite-theme-muted-dark: #d8afc1;
    --suite-theme-line-light: rgba(176, 92, 125, 0.18);
    --suite-theme-line-dark: rgba(239, 138, 168, 0.18);
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
}

.demo-suite-bg {
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        linear-gradient(180deg, color-mix(in srgb, var(--suite-bg-deep) 86%, transparent), color-mix(in srgb, var(--suite-bg) 90%, transparent)),
        radial-gradient(circle at 16% 14%, color-mix(in srgb, var(--suite-accent-strong) 18%, transparent), transparent 24%),
        radial-gradient(circle at 84% 12%, color-mix(in srgb, var(--suite-accent) 12%, transparent), transparent 22%),
        linear-gradient(135deg, color-mix(in srgb, var(--suite-bg-deep) 88%, transparent), color-mix(in srgb, var(--suite-bg) 98%, transparent));
}

.demo-suite-shell {
    width: min(1380px, 94vw);
    margin: 0 auto;
}

.demo-suite-header {
    position: sticky;
    top: 0;
    z-index: 80;
    padding: 1rem 0 0.9rem;
    background: linear-gradient(180deg, color-mix(in srgb, var(--suite-panel-strong) 96%, transparent), color-mix(in srgb, var(--suite-panel) 88%, transparent));
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--suite-line);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.16);
}

.demo-suite-topbar {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 1.2rem;
}

.demo-suite-brand-block {
    display: grid;
    gap: 0.65rem;
}

.demo-suite-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--suite-text);
}

.demo-suite-brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--suite-accent), color-mix(in srgb, var(--suite-accent) 32%, white));
    color: color-mix(in srgb, var(--suite-bg-deep) 72%, var(--suite-text));
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    box-shadow: 0 10px 24px color-mix(in srgb, var(--suite-accent) 24%, transparent);
}

.demo-suite-brand-copy {
    display: grid;
    gap: 0.1rem;
}

.demo-suite-brand-copy strong {
    font-family: 'Space Grotesk', sans-serif;
}

.demo-suite-brand-copy span,
.demo-suite-summary {
    color: var(--suite-text-secondary);
}

.demo-suite-summary {
    margin: 0;
    max-width: 72ch;
}

.demo-suite-utility {
    display: flex;
    flex-wrap: wrap;
    justify-content: end;
    align-items: center;
    gap: 0.65rem;
}

.demo-suite-collapse-toggle {
    order: 99;
    margin-left: auto;
    border: 1px solid color-mix(in srgb, var(--suite-accent) 18%, rgba(255, 255, 255, 0.12));
    background: color-mix(in srgb, var(--suite-panel-strong) 72%, transparent);
    color: var(--suite-text-secondary);
    border-radius: 999px;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease, border-color 0.16s ease;
}

.demo-suite-collapse-toggle-icon {
    line-height: 1;
}

.demo-suite-collapse-toggle:hover {
    transform: translateY(-1px);
    color: var(--suite-text);
    border-color: color-mix(in srgb, var(--suite-accent) 30%, transparent);
    background: color-mix(in srgb, var(--suite-accent) 12%, transparent);
}

.demo-suite-utility-pill {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--suite-panel-strong) 74%, transparent);
    border: 1px solid color-mix(in srgb, var(--suite-accent) 16%, rgba(255, 255, 255, 0.08));
    color: var(--suite-text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
}

.demo-theme-bar {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    margin-top: 0.9rem;
    flex-wrap: wrap;
}

.demo-theme-group,
.demo-mode-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.demo-theme-label {
    color: var(--suite-text-secondary);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.demo-mode-options {
    display: inline-flex;
    padding: 0.2rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--suite-panel-strong) 72%, transparent);
    border: 1px solid color-mix(in srgb, var(--suite-accent) 14%, rgba(255, 255, 255, 0.08));
}

.demo-mode-button {
    border: 0;
    background: transparent;
    color: var(--suite-text-secondary);
    padding: 0.46rem 0.8rem;
    border-radius: 999px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.demo-mode-button:hover,
.demo-mode-button.is-active {
    background: color-mix(in srgb, var(--suite-accent) 14%, transparent);
    color: var(--suite-text);
}

.demo-theme-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.demo-theme-swatch {
    width: 22px;
    height: 22px;
    padding: 0;
    border-radius: 999px;
    border: 2px solid color-mix(in srgb, var(--suite-text) 22%, transparent);
    background: var(--suite-accent);
    cursor: pointer;
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.demo-theme-swatch:hover,
.demo-theme-swatch.is-active {
    transform: translateY(-1px) scale(1.06);
    border-color: color-mix(in srgb, var(--suite-text) 68%, transparent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--suite-accent) 12%, transparent);
}

.demo-theme-swatch[data-demo-theme='cyan'] {
    background: #57d4ff;
}

.demo-theme-swatch[data-demo-theme='blue'] {
    background: #6da8ff;
}

.demo-theme-swatch[data-demo-theme='mint'] {
    background: #57e3c1;
}

.demo-theme-swatch[data-demo-theme='amber'] {
    background: #f6bf62;
}

.demo-theme-swatch[data-demo-theme='rose'] {
    background: #f28fb0;
}

.demo-suite-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1rem;
}

.demo-suite-summary,
.demo-suite-utility-pill,
.demo-theme-bar,
.demo-suite-nav {
    transform-origin: top;
    will-change: transform, opacity, max-height, margin;
    transition:
        opacity 0.42s cubic-bezier(0.22, 0.61, 0.36, 1),
        transform 0.48s cubic-bezier(0.22, 0.61, 0.36, 1),
        max-height 0.52s cubic-bezier(0.22, 0.61, 0.36, 1),
        margin 0.46s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.demo-suite-summary {
    max-height: 88px;
    transform: translateY(0);
}

.demo-theme-bar {
    max-height: 96px;
    transform: translateY(0);
}

.demo-suite-nav {
    max-height: 70px;
    transform: translateY(0);
}

.demo-suite-utility-pill {
    max-height: 40px;
    transform: translateY(0);
}

body[data-demo-header='collapsed'] .demo-suite-header {
    padding: 0.64rem 0 0.56rem;
    transition: padding 0.48s cubic-bezier(0.22, 0.61, 0.36, 1);
}

body[data-demo-header='collapsed'] .demo-suite-topbar {
    align-items: center;
    transition: align-items 0.3s ease;
}

body[data-demo-header='collapsed'] .demo-suite-summary,
body[data-demo-header='collapsed'] .demo-suite-utility-pill,
body[data-demo-header='collapsed'] .demo-theme-bar,
body[data-demo-header='collapsed'] .demo-suite-nav {
    opacity: 0;
    transform: translateY(-12px);
    max-height: 0;
    overflow: hidden;
    margin: 0;
    pointer-events: none;
}

.demo-suite-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.72rem 1rem;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--suite-accent) 12%, rgba(255, 255, 255, 0.08));
    background: color-mix(in srgb, var(--suite-panel-strong) 70%, transparent);
    color: var(--suite-text-secondary);
    font-weight: 600;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.demo-suite-link:hover,
.demo-suite-link.is-active {
    transform: translateY(-1px);
    color: var(--suite-text);
    border-color: color-mix(in srgb, var(--suite-accent) 24%, transparent);
    background: color-mix(in srgb, var(--suite-accent) 10%, transparent);
}

.demo-suite-main {
    padding: 1.3rem 0 0;
}

.demo-suite-home {
    width: min(1380px, 94vw);
    margin: 0 auto;
    padding: 18px;
}

.demo-home-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.demo-home-card {
    padding: 1.35rem;
}

.demo-home-card h2 {
    margin: 0 0 0.65rem;
    font-family: 'Space Grotesk', sans-serif;
}

.demo-home-card p {
    margin: 0 0 1rem;
    color: var(--suite-text-secondary);
}

.demo-home-link {
    width: fit-content;
}

.demo-suite-footer {
    padding: 0 0 1.6rem;
}

.demo-suite-footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.15rem;
    border: 1px solid var(--suite-line);
    border-radius: 18px;
    background: color-mix(in srgb, var(--suite-panel) 82%, transparent);
    backdrop-filter: blur(14px);
    color: var(--suite-text-secondary);
}

.demo-suite-footer-inner p {
    margin: 0;
}

.demo-suite-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.demo-suite-footer-links a {
    color: var(--suite-accent);
    font-weight: 600;
}

@media (max-width: 940px) {
    .demo-suite-topbar,
    .demo-suite-footer-inner {
        display: grid;
    }

    .demo-suite-utility {
        justify-content: start;
    }

    .demo-suite-collapse-toggle {
        animation: demo-suite-toggle-pulse 2.6s ease-in-out infinite;
    }
}

@media (max-width: 680px) {
    .demo-suite-header {
        position: relative;
    }

    .demo-home-grid {
        grid-template-columns: 1fr;
    }

    .demo-theme-bar {
        align-items: start;
        flex-direction: column;
    }

    .demo-theme-group,
    .demo-mode-group {
        flex-direction: column;
        align-items: start;
    }
}

@keyframes demo-suite-toggle-pulse {
    0%, 82%, 100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--suite-accent) 0%, transparent);
    }
    40% {
        box-shadow: 0 0 0 7px color-mix(in srgb, var(--suite-accent) 20%, transparent);
    }
}