/* Base styles */
body, html {
height: 100%;
padding: 0;
margin: 0;
font-family: "Roboto", "Verdana", helvetica, arial, sans-serif;
font-size: 16px;
text-rendering: optimizeLegibility;
background-color: var(--base-color);
color: var(--text-color);
overflow-x: hidden;
}
/* CSS Variables - will be replaced by the server with values */
:root {
--base-color: #800080;
--text-color: #ffffff;
--topnav-height: 0px;
--scroll-indicator-bottom: 0.75rem;
--scroll-indicator-size: 0.9rem;
/* Calculate HICOLOR and LOCOLOR based on BASECOLOR */
/* Fallback for browsers without color-mix support (Chrome <111) */
--hi-color: #a64ca6;
--lo-color: #590059;
--background-color: #800080;
/* Modern browsers with color-mix support will use these */
--hi-color: color-mix(in srgb, var(--base-color) 70%, white 30%);
--lo-color: color-mix(in srgb, var(--base-color) 70%, black 30%);
--background-color: color-mix(in srgb, var(--base-color) 80%, black 20%);
/* Welcome page specific variables */
--primary-color: var(--base-color);
--primary-light: var(--hi-color);
--primary-dark: var(--lo-color);
/* Fallbacks for older browsers */
--accent-color: #47b475;
--accent-hover: #3a9460;
--danger-color: #e74c3c;
--danger-hover: #c0392b;
--text-light: #f5f5f5;
--card-bg: #800080;
--shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
/* Modern browsers override with color-mix */
--accent-color: color-mix(in srgb, var(--hi-color) 70%, #47b475 30%);
--accent-hover: color-mix(in srgb, var(--lo-color) 70%, #47b475 30%);
--danger-color: color-mix(in srgb, #e74c3c 80%, var(--hi-color) 20%);
--danger-hover: color-mix(in srgb, #c0392b 80%, var(--lo-color) 20%);
--text-light: color-mix(in srgb, var(--text-color) 10%, white 90%);
--card-bg: color-mix(in srgb, var(--background-color) 95%, white 5%);
--shadow: 0 4px 6px color-mix(in srgb, var(--lo-color) 30%, transparent 70%);
}
/* =========================
Top navigation (shared)
========================= */
/* Navigation */
.topnav {
position: fixed;
z-index: 10;
overflow-x: hidden;
overflow-y: hidden;
top: 0;
width: 100%;
/* Fallback for browsers without color-mix support (Chrome 76 and older) */
background: #800080;
box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
border-bottom: 1px solid rgba(255, 255, 255, 0.22);
backdrop-filter: blur(8px);
-webkit-backdrop-filter: blur(8px);
}
/* Modern browsers with color-mix support */
@supports (background: color-mix(in srgb, red, blue)) {
.topnav {
background: color-mix(in srgb, var(--base-color) 92%, transparent 8%);
box-shadow: 0 10px 28px color-mix(in srgb, var(--lo-color) 35%, transparent 65%);
border-bottom: 1px solid color-mix(in srgb, var(--hi-color) 22%, transparent 78%);
}
}
/* Modern toolbar */
.topbar {
display: flex;
align-items: center;
justify-content: space-between;
padding: 0.6rem 0.75rem;
gap: 0.75rem;
position: relative;
}
/* Center home button regardless of other buttons */
.topbar-btn--home {
position: absolute;
left: 50%;
transform: translateX(-50%);
}
.topbar-btn--home:active {
transform: translateX(-50%) translateY(1px);
}
/* Remove the general :active transform for topbar buttons since home button needs special handling */
.topbar-btn:active {
background: color-mix(in srgb, var(--lo-color) 18%, transparent 82%);
}
/* Apply the standard active state only to non-home buttons */
.topbar-btn--back:active,
.topbar-btn--search:active {
transform: translateY(1px);
}
/* Ensure back and search buttons don't overlap centered home button */
.topbar-btn--back {
margin-right: auto;
}
.topbar-btn--search {
margin-left: auto;
}
/* Icon rendering: use CSS masks so pages don't need inline