:root {
    --true--white: #ffffff;
    --light-gray: #e1e1e1;
    --true-blue: rgb(0, 0, 255);
    --ink: #1f1f1f;
    --card-border: #d9d4c6;
    --muted-ink: #4f4f4f;
    --cd-overlay-ratio: 0.25;

    /* Z-index layer system */
    --z-background: 0;
    --z-content: 10;
    --z-controls: 100;

    /* Background color (set by showcase) */
    --page-bg: #000000;

    /* Text colors (customizable) */
    --title-color: rgb(0, 0, 255);
    --nav-color: #1f1f1f;
}

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

html, body {
    min-height: 100%;
}

body {
    font-family: "Helvetica Neue", Arial, sans-serif;
    background: var(--page-bg);
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

/* Background showcase layer */
#background-showcase {
    position: fixed;
    inset: 0;
    z-index: var(--z-background);
    pointer-events: none;
}

#background-showcase canvas,
#background-showcase shader-art {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* Ensure main content stays above background */
main {
    position: relative;
    z-index: var(--z-content);
}

.bbh-bartle-regular {
    font-family: "BBH Bartle", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.logo-text {
    display: inline-block;
    font-size: 4.02325rem;
    letter-spacing: 0.20482em;
    text-transform: uppercase;
    color: var(--title-color);
    text-align: left;
}

.page {
    display: flex;
    flex-wrap: wrap;
    min-height: 100vh;
    width: 100vw;
    gap: 0rem;
}

.controller {
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 0rem;
    margin: 2rem 2rem 2rem 2rem;
}

.site-nav {
    width: 100%;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: 2.1945rem;
    flex-wrap: wrap;
    padding: 0rem;
    margin: 0rem;
}

.nav-item {
    margin: 0rem;
}

.nav-link {
    border: none;
    background: transparent;
    color: var(--nav-color);
    font-size: 0.7315rem;
    letter-spacing: 0.1463em;
    text-transform: uppercase;
    cursor: pointer;
    padding: 0.182875rem 0rem;
    position: relative;
    text-decoration: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2.926px;
    height: 1.463px;
    background: currentColor;
    opacity: 0;
    transform: scaleX(0.6);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-link:focus-visible,
.nav-link:hover {
    outline: none;
}

.nav-link:focus-visible::after,
.nav-link:hover::after {
    opacity: 1;
    transform: scaleX(1);
}

.cd {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    transform: translateY(70px);
    z-index: 1;
}

.cd-stage {
    width: 24.688125rem;
    aspect-ratio: 1 / 1;
    position: relative;
    align-self: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cd-stage canvas {
    position: absolute;
    inset: 0rem;
    width: 100%;
    height: 100%;
}

.text-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0rem;
    text-align: left;
    margin-top: 0.914375rem;
    position: relative;
    z-index: 2;
}

.instruction {
    display: inline-flex;
    padding: 0.256025rem 0.621775rem;
    font-size: 0.5852rem;
    letter-spacing: 0.05852em;
    text-transform: uppercase;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.35);
    border: 0.7315px solid rgba(255, 255, 255, 0.6);
    border-radius: 730.7685px;
    box-shadow: 0rem 7.315px 18.2875px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(13.167px);
    -webkit-backdrop-filter: blur(13.167px);
    pointer-events: none;
    z-index: 3;
}

/* Showcase Controls Modal */
#showcase-controls {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: var(--z-controls);
    background: rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 0.75rem;
    padding: 0.75rem;
    min-width: 220px;
    color: #fff;
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 0.875rem;
}

#showcase-controls .controls-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

#showcase-controls .controls-header h2 {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0;
}

#showcase-controls .controls-toggle {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
}

#showcase-controls .controls-toggle:hover {
    color: #fff;
}

#showcase-controls.collapsed .controls-body {
    display: none;
}

#showcase-controls.collapsed .controls-header {
    margin-bottom: 0;
}

#showcase-controls .controls-body {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

#showcase-controls label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
}

#showcase-controls select {
    width: 100%;
    padding: 0.4rem;
    border-radius: 0.25rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 0.8125rem;
    cursor: pointer;
}

#showcase-controls select option {
    background: #222;
    color: #fff;
}

#showcase-controls input[type="color"] {
    width: 100%;
    height: 2rem;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 0.25rem;
    background: transparent;
    cursor: pointer;
}

#showcase-controls input[type="range"] {
    width: 100%;
    height: 0.375rem;
    border-radius: 0.1875rem;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

#showcase-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
}

#showcase-controls #dynamicColorControls {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

#showcase-controls .controls-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    margin: 0.375rem 0;
}

#showcase-controls #textColorControls {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

#showcase-controls #showcaseApply {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.25rem;
    color: #fff;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

#showcase-controls #showcaseApply:hover {
    background: rgba(255, 255, 255, 0.25);
}