wip: glass theme tokens + demo page + charcoal base port

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avi 2026-09-07 18:12:09 -05:00
commit 6628965e68
941 changed files with 1688 additions and 1160 deletions

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/* ============================================================
RadAmp Glass — glassmorphism theme for audio/radio streaming
Dark default + light variant. WCAG 2.2 AA verified (see demo).
============================================================ */
/* ---------- 1. TOKENS ---------- */
:root {
color-scheme: dark;
/* Base background: flat dark charcoal, very subtle vertical gradient */
--bg-top: #23232B;
--bg-bottom: #1B1B22;
--bg-gradient: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%);
/* Glass recipe */
--glass-bg: rgba(255, 255, 255, 0.06);
--glass-bg-strong: rgba(255, 255, 255, 0.09); /* hover */
--glass-border: rgba(255, 255, 255, 0.10); /* decorative only, NOT a 3:1 boundary */
--border-interactive: rgba(255, 255, 255, 0.36); /* 3.0:1 on glass — WCAG 1.4.11 */
--glass-blur: 18px; /* hard cap: 18–20px, never higher */
--glass-saturate: 160%;
--glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.14);
--shadow-glass: 0 10px 30px rgba(0, 0, 0, 0.35);
--shadow-fab: 0 12px 32px rgba(0, 0, 0, 0.5), 0 4px 10px rgba(124, 77, 255, 0.35);
/* Accent — violet */
--accent: #7C4DFF;
--accent-hover: #8E66FF;
--accent-pressed: #6A3DE0;
--accent-soft: rgba(124, 77, 255, 0.16); /* icon chips, active fills */
/* #7C4DFF is only 2.71:1 on glass → text/active-label accent on glass uses this
(4.83:1 on glass, 5.78:1 on base). #7C4DFF itself is reserved for fills
and for text on the SOLID base (3.24:1, large text only). */
--accent-text: #A78BFF;
/* Text (all pairs ≥4.5:1 on glass; do not darken) */
--text-title: #FFFFFF; /* 13.0:1 on glass */
--text-body: rgba(255, 255, 255, 0.88); /* 10.5:1 on glass */
--text-caption: rgba(255, 255, 255, 0.55); /* 5.1:1 on glass — floor */
/* Status */
--live: #34C759; /* 5.9:1 on glass */
--danger: #FF6B6B;
/* Focus */
--focus-ring: #A78BFF; /* 4.8:1 vs glass */
--focus-width: 2px;
--focus-offset: 3px;
/* Solid panels (long lists / body copy — glass is sparing) */
--panel-solid: #202029; /* ≈90% opaque base */
--panel-border: rgba(255, 255, 255, 0.08);
/* Radii */
--r-card: 20px; /* now-playing bar, cards */
--r-input: 14px; /* inputs, chips */
--r-pill: 999px; /* pills, circular buttons */
/* Spacing scale */
--sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
--sp-5: 20px; --sp-6: 24px; --sp-8: 32px; --sp-10: 40px;
/* Type */
--font: "Inter", "SF Pro Text", "Geist", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
--fs-body: 16px; --lh-body: 1.6;
--fs-title: 22px; --fs-hero: 28px;
--fs-caption: 12px; --ls-caption: 0.4px;
/* Safe areas */
--safe-bottom: env(safe-area-inset-bottom, 0px);
}
/* ---------- Light variant ---------- */
[data-theme="light"] {
color-scheme: light;
--bg-top: #F2F1F7;
--bg-bottom: #E7E5F0;
--glass-bg: rgba(255, 255, 255, 0.62);
--glass-bg-strong: rgba(255, 255, 255, 0.78);
--glass-border: rgba(35, 35, 43, 0.10);
--border-interactive: rgba(35, 35, 43, 0.45); /* 3:1 on light glass */
--glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.65);
--shadow-glass: 0 10px 30px rgba(35, 35, 43, 0.14);
--accent-soft: rgba(124, 77, 255, 0.12);
/* On light glass: dark text carries contrast, violet text uses deeper mix */
--text-title: #1B1B22;
--text-body: rgba(27, 27, 34, 0.88);
--text-caption: rgba(27, 27, 34, 0.62); /* ≥4.5:1 on light glass */
--accent-text: #5B2EDB; /* ≥4.5:1 on light glass */
--panel-solid: #FBFAFE;
--panel-border: rgba(35, 35, 43, 0.10);
--focus-ring: #5B2EDB;
--live: #0F7A36; /* #34C759 is only 2.13:1 on light glass — darken per AA rule */
--danger: #C03434;
}
/* ---------- 2. BASE ---------- */
.glass-app {
font-family: var(--font);
font-size: var(--fs-body);
line-height: var(--lh-body);
color: var(--text-body);
background: var(--bg-gradient);
min-height: 100%;
-webkit-font-smoothing: antialiased;
/* Violet glows live UNDER glass, never behind text: painted on the root only */
background-image:
radial-gradient(60% 32% at 78% 12%, rgba(124, 77, 255, 0.14), transparent 70%),
radial-gradient(50% 28% at 18% 88%, rgba(124, 77, 255, 0.08), transparent 70%),
var(--bg-gradient);
}
.glass-app *, *::before, *::after { box-sizing: border-box; }
h1, h2, h3 { color: var(--text-title); font-weight: 700; margin: 0; }
.caption {
font-size: var(--fs-caption);
letter-spacing: var(--ls-caption);
color: var(--text-caption);
font-weight: 500; /* no weight below 400 on glass; 500 keeps captions crisp */
}
.no-italic, .glass-app em { font-style: normal; }
/* Focus ring on every interactive element, visible over blur */
.glass-app :focus-visible {
outline: var(--focus-width) solid var(--focus-ring);
outline-offset: var(--focus-offset);
border-radius: inherit;
}
/* Skip link */
.skip-link {
position: absolute; left: var(--sp-2); top: -48px; z-index: 100;
background: var(--accent); color: #fff; padding: var(--sp-2) var(--sp-4);
border-radius: var(--r-input); text-decoration: none; font-weight: 600;
transition: top 0.15s ease;
}
.skip-link:focus { top: var(--sp-2); }
/* ---------- 3. GLASS PRIMITIVE ---------- */
.glass {
background: var(--glass-bg);
border: 1px solid var(--glass-border);
-webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
box-shadow: var(--glass-highlight), var(--shadow-glass);
}
/* Solid fallback when backdrop-filter is unsupported: opaque surface, same border */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
.glass { background: var(--panel-solid); }
}
/* Text-on-glass safety: 90%-opaque overlay behind text blocks that sit over a
glow or artwork. The blur never carries contrast — this does. */
.glass--text-safe::after {
content: ""; position: absolute; inset: 0; z-index: -1;
background: rgba(27, 27, 34, 0.9);
border-radius: inherit;
}
[data-theme="light"] .glass--text-safe::after { background: rgba(251, 250, 254, 0.92); }
/* ---------- 4. STATUS BAR ---------- */
.status-bar {
display: flex; justify-content: space-between; align-items: center;
padding: var(--sp-2) var(--sp-5);
color: var(--text-title);
font-size: 14px; font-weight: 600;
font-variant-numeric: tabular-nums;
}
.status-bar .sys-icons { display: flex; gap: var(--sp-2); align-items: center; }
.status-bar svg { display: block; }
/* ---------- 5. NOW PLAYING BAR (hero glass) ---------- */
.np-bar {
position: sticky; top: 0; z-index: 20;
display: grid;
grid-template-columns: 48px 1fr;
gap: var(--sp-3);
align-items: center;
padding: var(--sp-3) var(--sp-4);
border-radius: var(--r-card);
margin: 0 var(--sp-4);
}
.np-chip {
width: 48px; height: 48px;
border-radius: 14px;
display: grid; place-items: center;
background: var(--accent);
color: #fff;
box-shadow: 0 4px 14px rgba(124, 77, 255, 0.45);
}
.np-title {
color: var(--text-title); font-weight: 700; font-size: 15px;
white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.np-meta {
display: flex; justify-content: space-between; align-items: center;
gap: var(--sp-2);
}
.np-meta .caption { font-variant-numeric: tabular-nums; }
.signal-bars { display: inline-flex; gap: 2px; align-items: flex-end; height: 10px; }
.signal-bars i { width: 3px; background: var(--live); border-radius: 1px; }
.signal-bars i:nth-child(1) { height: 4px; } .signal-bars i:nth-child(2) { height: 6px; }
.signal-bars i:nth-child(3) { height: 8px; } .signal-bars i:nth-child(4) { height: 10px; opacity: 0.35; }
.live-dot {
display: inline-block; width: 8px; height: 8px; border-radius: 50%;
background: var(--live); margin-right: var(--sp-1);
animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.45; } }
/* ---------- 6. NOW PLAYING DETAIL ---------- */
.np-hero-title { font-size: var(--fs-hero); line-height: 1.2; }
.np-detail { padding: var(--sp-6) var(--sp-5) var(--sp-4); }
.np-artwork-row { display: flex; gap: var(--sp-4); align-items: flex-end; margin-top: var(--sp-5); }
.np-artwork {
width: 132px; height: 132px; border-radius: var(--r-card);
background:
radial-gradient(120% 120% at 20% 10%, rgba(124,77,255,0.55), transparent 60%),
linear-gradient(160deg, #2C2C3A, #1E1E28);
border: 1px solid var(--glass-border);
box-shadow: var(--shadow-glass);
display: grid; place-items: center; color: var(--accent-text);
}
.station-chip {
display: inline-flex; align-items: center; gap: var(--sp-2);
padding: var(--sp-2) var(--sp-4);
border-radius: var(--r-pill);
font-size: 13px; font-weight: 600;
color: var(--text-body);
}
.station-chip .np-chip { width: 24px; height: 24px; border-radius: 8px; }
.station-chip .np-chip svg { width: 14px; height: 14px; }
/* Volume slider — glass track, violet fill + thumb */
.volume {
--fill: 72%;
margin-top: var(--sp-6);
}
.volume .caption { display: flex; justify-content: space-between; margin-bottom: var(--sp-2); }
input[type="range"].vol {
-webkit-appearance: none; appearance: none;
width: 100%; height: 10px; border-radius: var(--r-pill);
background:
linear-gradient(90deg, var(--accent) var(--fill), transparent var(--fill)),
var(--glass-bg);
border: 1px solid var(--border-interactive);
box-shadow: var(--glass-highlight);
}
input[type="range"].vol::-webkit-slider-thumb {
-webkit-appearance: none; appearance: none;
width: 24px; height: 24px; border-radius: 50%;
background: var(--accent);
border: 2px solid #fff;
box-shadow: 0 4px 12px rgba(124, 77, 255, 0.5);
cursor: grab;
}
input[type="range"].vol::-moz-range-thumb {
width: 24px; height: 24px; border-radius: 50%;
background: var(--accent); border: 2px solid #fff;
box-shadow: 0 4px 12px rgba(124, 77, 255, 0.5);
}
input[type="range"].vol::-moz-range-progress { background: var(--accent); height: 10px; border-radius: var(--r-pill); }
/* Transport row + FAB */
.transport {
display: flex; align-items: center; justify-content: center;
gap: var(--sp-6); margin-top: var(--sp-8);
}
.icon-btn {
width: 48px; height: 48px; border-radius: var(--r-pill);
display: grid; place-items: center;
border: 1px solid var(--glass-border);
background: var(--glass-bg); color: var(--text-body);
cursor: pointer;
box-shadow: var(--glass-highlight);
-webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
transition: background 0.15s ease, transform 0.1s ease;
}
.icon-btn:hover { background: var(--glass-bg-strong); color: var(--text-title); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn.is-on { background: var(--accent-soft); color: var(--accent-text); border-color: var(--accent); }
.fab {
width: 64px; height: 64px; border-radius: var(--r-pill);
border: none; cursor: pointer;
background: var(--accent); color: #fff; /* #FFF on #7C4DFF = 4.81:1 */
display: grid; place-items: center;
box-shadow: var(--shadow-fab);
transition: background 0.15s ease, transform 0.1s ease;
}
.fab:hover { background: var(--accent-hover); }
.fab:active { background: var(--accent-pressed); transform: scale(0.95); }
.fab--sm { width: 52px; height: 52px; }
/* ---------- 7. SEGMENTED TAB STRIP ---------- */
.seg-tabs {
display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
gap: var(--sp-1);
margin: var(--sp-5) var(--sp-4) 0;
padding: var(--sp-1);
border-radius: var(--r-input);
}
.seg-tab {
display: flex; flex-direction: column; align-items: center; gap: 2px;
padding: var(--sp-2) var(--sp-1);
border: none; background: transparent; cursor: pointer;
border-radius: 10px;
color: var(--text-caption);
font: 600 12px/1.35 var(--font);
letter-spacing: var(--ls-caption);
position: relative;
}
.seg-tab svg { width: 20px; height: 20px; }
.seg-tab:hover { color: var(--text-body); }
.seg-tab[aria-selected="true"] {
color: var(--accent-text); /* AA on glass */
}
.seg-tab[aria-selected="true"]::after {
content: ""; position: absolute; bottom: 2px; left: 25%; right: 25%;
height: 2px; border-radius: 2px; background: var(--accent);
}
/* ---------- 8. CONTENT PANEL (solid — glass is sparing) ---------- */
.panel {
margin: var(--sp-4);
background: var(--panel-solid);
border: 1px solid var(--panel-border);
border-radius: var(--r-card);
overflow: clip;
}
.panel-head {
display: flex; justify-content: space-between; align-items: baseline;
padding: var(--sp-4) var(--sp-4) var(--sp-2);
}
.row-item {
display: grid; grid-template-columns: 40px 1fr auto; gap: var(--sp-3);
align-items: center;
padding: var(--sp-3) var(--sp-4);
border: none; background: transparent; width: 100%; text-align: left;
color: var(--text-body); cursor: pointer;
font: inherit;
}
.row-item + .row-item { border-top: 1px solid var(--panel-border); }
.row-item:hover { background: rgba(255, 255, 255, 0.04); }
.row-item .t { color: var(--text-title); font-weight: 600; font-size: 15px; }
.row-thumb {
width: 40px; height: 40px; border-radius: 10px;
background: var(--accent-soft); color: var(--accent-text);
display: grid; place-items: center;
}
/* ---------- 9. BOTTOM NAV ---------- */
.bottom-nav {
position: sticky; bottom: 0; z-index: 20;
display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
padding: var(--sp-2) var(--sp-2) calc(var(--sp-2) + var(--safe-bottom));
border-radius: var(--r-card) var(--r-card) 0 0;
margin: 0 var(--sp-2);
}
.nav-item {
display: flex; flex-direction: column; align-items: center; gap: 2px;
padding: var(--sp-2) var(--sp-1);
min-height: 48px; /* hit target ≥44px */
border: none; background: transparent; cursor: pointer;
border-radius: var(--r-input);
color: var(--text-caption);
font: 600 11px/1.3 var(--font); letter-spacing: var(--ls-caption);
}
.nav-item svg { width: 22px; height: 22px; }
.nav-item:hover { color: var(--text-body); }
/* Active = unmistakable: violet fill behind the icon, not a subtle tint */
.nav-item[aria-current="page"] { color: var(--accent-text); }
.nav-item[aria-current="page"] .nav-ico {
background: var(--accent-soft);
box-shadow: inset 0 0 0 1px var(--accent);
border-radius: var(--r-pill);
}
.nav-ico { display: grid; place-items: center; width: 44px; height: 26px; }
/* ---------- 10. ACTION ROW ---------- */
.action-row {
display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-3);
padding: var(--sp-3) var(--sp-4);
}
.btn-glass {
display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
min-height: 52px; padding: 0 var(--sp-5);
border-radius: var(--r-input);
font: 700 15px var(--font);
cursor: pointer;
color: var(--text-title);
border: 1px solid var(--border-interactive);
background: var(--glass-bg);
box-shadow: var(--glass-highlight), var(--shadow-glass);
-webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
transition: background 0.15s ease, transform 0.1s ease;
}
.btn-glass:hover { background: var(--glass-bg-strong); }
.btn-glass:active { transform: scale(0.98); }
.btn-glass--primary {
background: var(--accent); color: #fff; border-color: transparent;
}
.btn-glass--primary:hover { background: var(--accent-hover); }
.btn-glass--primary:active { background: var(--accent-pressed); }
/* ---------- 11. TOAST + MODAL ---------- */
.toast {
position: fixed; left: 50%; bottom: calc(96px + var(--safe-bottom));
transform: translateX(-50%);
padding: var(--sp-3) var(--sp-5);
border-radius: var(--r-pill);
color: var(--text-title); font-size: 14px; font-weight: 600;
z-index: 60; max-width: min(92vw, 420px); text-align: center;
}
.modal-backdrop {
position: fixed; inset: 0; z-index: 50;
background: rgba(10, 10, 14, 0.6);
display: grid; place-items: center; padding: var(--sp-5);
}
.modal {
width: min(92vw, 380px);
border-radius: var(--r-card);
padding: var(--sp-6);
background: var(--panel-solid); /* solid: text never relies on blur */
border: 1px solid var(--glass-border);
box-shadow: var(--shadow-glass);
}
.modal h3 { font-size: var(--fs-title); margin-bottom: var(--sp-2); }
.modal p { margin: 0 0 var(--sp-5); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--sp-3); }
.link-btn {
border: none; background: none; cursor: pointer;
font: 700 15px var(--font); color: var(--accent-text);
padding: var(--sp-2) var(--sp-3); border-radius: 10px;
}
.link-btn--danger { color: var(--danger); }
/* ---------- 12. ACCESSIBILITY FALLBACKS ---------- */
@media (prefers-reduced-transparency: reduce) {
:root { --glass-bg: #262631; --glass-bg-strong: #2C2C38; }
[data-theme="light"] { --glass-bg: #FFFFFF; --glass-bg-strong: #F4F3FA; }
.glass, .icon-btn, .nav-item, .btn-glass, .toast, .seg-tabs {
-webkit-backdrop-filter: none; backdrop-filter: none;
background: var(--glass-bg);
}
.modal-backdrop { background: rgba(10, 10, 14, 0.92); }
}
@media (prefers-reduced-motion: reduce) {
.live-dot { animation: none; }
*, *::before, *::after { transition: none !important; }
.icon-btn:active, .fab:active, .btn-glass:active { transform: none; }
}
@media (forced-colors: active) {
.glass, .icon-btn, .btn-glass, .seg-tabs, .bottom-nav, .toast, .modal, .panel {
background: Canvas; border: 1px solid CanvasText;
backdrop-filter: none; -webkit-backdrop-filter: none;
box-shadow: none; forced-color-adjust: none;
}
.np-chip, .fab { background: Highlight; color: HighlightText; border: 1px solid CanvasText; }
.seg-tab[aria-selected="true"], .nav-item[aria-current="page"] { color: Highlight; }
.seg-tab[aria-selected="true"]::after { background: Highlight; }
.glass-app :focus-visible { outline: 3px solid Highlight; }
}