:root { color-scheme: dark; --bg: #07111f; --bg-end: #02070f; --bg-soft: #0e1727; --panel: rgba(10, 19, 34, 0.84); --border: rgba(255, 255, 255, 0.08); --text: #f5f7fb; --muted: #93a1b8; --accent: #f5b942; --accent-strong: #ff7a18; --green: #4ade80; /* Board square colors -- "classic" (this site's original gray-blue pairing) is the default with no data attribute, so every board already using var(--square-light)/var(--square-dark) keeps looking exactly as it did before this existed. Set server-side via data-board-theme on (see app.py's inject_appearance) so there's no flash of the wrong theme on load. */ --square-light: #e8eaf0; --square-dark: #4b5266; } :root[data-board-theme="green"] { --square-light: #ebecd0; --square-dark: #779556; } :root[data-board-theme="brown"] { --square-light: #f0d9b5; --square-dark: #b58863; } :root[data-board-theme="blue"] { --square-light: #dee3e6; --square-dark: #8ca2ad; } :root[data-board-theme="walnut"] { --square-light: #d9c4a3; --square-dark: #7c5a3a; } :root[data-board-theme="coral"] { --square-light: #ffe8db; --square-dark: #e2725b; } :root[data-board-theme="ice"] { --square-light: #f2f9ff; --square-dark: #7fa8c9; } :root[data-board-theme="lavender"] { --square-light: #ece4f7; --square-dark: #8868b3; } :root[data-board-theme="sand"] { --square-light: #f0e6d2; --square-dark: #c19a6b; } :root[data-board-theme="mint"] { --square-light: #e3f7ee; --square-dark: #4f9a7d; } :root[data-board-theme="slate"] { --square-light: #d8dee3; --square-dark: #52616f; } :root[data-board-theme="rose"] { --square-light: #f8dde3; --square-dark: #b5495b; } :root[data-board-theme="midnight"] { --square-light: #3b4252; --square-dark: #1c212b; } :root[data-board-theme="sunset"] { --square-light: #ffd9a0; --square-dark: #d1652f; } /* Desk (page background) themes -- "classic" is this site's original near-black navy and is the default with no data attribute. Only --bg/--bg-end change: card/panel colors across the site (profile.css's --pf-card, admin.css's --admin-card, etc.) are already dark enough to read fine over any of these without their own per-theme overrides, so this stays scoped to the body gradient rather than a much larger refactor. Set server-side via data-desk-theme on (see app.py's inject_appearance), same as data-board-theme above. */ :root[data-desk-theme="charcoal"] { --bg: #1c1c1c; --bg-end: #0a0a0a; } :root[data-desk-theme="forest"] { --bg: #0b1f16; --bg-end: #030a07; } :root[data-desk-theme="wine"] { --bg: #200c14; --bg-end: #0a0306; } * { box-sizing: border-box; } body { margin: 0; min-height: 100vh; font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif; background: radial-gradient(circle at top left, rgba(245, 185, 66, 0.18), transparent 25%), linear-gradient(135deg, var(--bg) 0%, var(--bg-end) 100%); color: var(--text); } body::before { content: ""; position: fixed; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px); background-size: 32px 32px; mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.35), transparent); pointer-events: none; } .app-shell { display: grid; grid-template-columns: minmax(240px, 280px) 1fr; min-height: 100vh; } .sidebar { display: flex; flex-direction: column; justify-content: space-between; padding: 30px 22px; border-right: 1px solid var(--border); background: rgba(5, 10, 18, 0.72); backdrop-filter: blur(24px); position: sticky; top: 0; height: 100vh; overflow-y: auto; } /* Mobile nav: hamburger (in .topbar) + off-canvas drawer + backdrop. All three are no-ops above the 960px breakpoint below, where the sidebar is already always visible as a real column -- see mobile-nav.js for the open/close toggle. */ .mobile-menu-btn { display: none; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.04); color: var(--text); font-size: 1.3rem; line-height: 1; cursor: pointer; } .mobile-menu-btn:hover { border-color: var(--accent); } .sidebar-close-btn { display: none; } .sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55); z-index: 90; opacity: 0; pointer-events: none; transition: opacity 220ms ease; } .sidebar-backdrop.is-open { opacity: 1; pointer-events: auto; } .brand { display: flex; align-items: center; gap: 14px; margin-bottom: 30px; } a.brand { text-decoration: none; color: inherit; cursor: pointer; transition: opacity 150ms ease; } a.brand:hover { opacity: 0.85; } /* Topbar user chip is a link to /profile on every page except settings (which keeps the Log out button instead) -- see backend/templates/*.html and .user-chip's own box styling in dashboard.css. */ a.user-chip { text-decoration: none; color: inherit; cursor: pointer; transition: opacity 150ms ease; } a.user-chip:hover { opacity: 0.75; } .brand-mark { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, var(--accent), var(--accent-strong)); color: #111; font-size: 1.2rem; font-weight: 700; box-shadow: 0 14px 28px rgba(245, 185, 66, 0.25); } /* Fixed px, not %: the .brand-mark parent is display:grid with place-items:center, and percentage height doesn't reliably resolve against a grid item's box in that combination -- it was rendering taller than the parent itself and throwing off the centering. */ .brand-mark img { width: 33px; height: 33px; object-fit: contain; display: block; } .legal-brand .brand-mark img { width: 27px; height: 27px; } /* Already inherits font-weight:800 (Manrope's heaviest cut -- it has no 900) from the brand text around it, but red reads visually thinner than white at the same weight against a dark background. The stroke fakes extra weight to compensate. */ .brand-red { color: #ff0000; -webkit-text-stroke: 0.5px #ff0000; } .brand-gold { color: var(--text); text-transform: none; font-size: 0.7em; font-weight: 600; } .brand h1, .legal-brand span { font-family: "Manrope", Inter, "Segoe UI", Roboto, Arial, sans-serif; font-size: 1.3rem; font-weight: 800; text-transform: uppercase; text-shadow: 0 2px 6px rgba(0, 0, 0, 0.45); } .brand h1 { margin: 0; } .brand p { margin: 3px 0 0; color: var(--muted); font-size: 0.9rem; } .nav-links { display: flex; flex-direction: column; gap: 8px; } .nav-links a { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; color: var(--text); text-decoration: none; transition: transform 180ms ease, background 180ms ease; } .nav-links a:hover { background: rgba(255, 255, 255, 0.06); transform: translateX(2px); } .nav-icon { width: 24px; text-align: center; color: var(--accent); } .sidebar-footer { padding: 16px; border: 1px solid var(--border); border-radius: 16px; background: rgba(255, 255, 255, 0.03); color: var(--muted); font-size: 0.95rem; line-height: 1.5; } .sidebar-legal { margin-top: 10px; font-size: 0.82rem; } .sidebar-legal a { color: var(--muted); text-decoration: none; } .sidebar-legal a:hover { color: var(--accent); text-decoration: underline; } /* ---------- Shared layout for standalone content pages (credits, privacy) ---------- */ .legal-shell { max-width: 760px; margin: 0 auto; padding: 48px 24px 80px; } .legal-back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); text-decoration: none; font-size: 0.9rem; margin-bottom: 28px; } .legal-back:hover { color: var(--accent); } .legal-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; } .legal-brand .brand-mark { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-strong)); display: grid; place-items: center; font-size: 1.1rem; } .legal-brand span { color: var(--text); } .legal-card { background: var(--panel); border: 1px solid var(--border); border-radius: 20px; padding: 36px 40px; } .legal-card h1 { margin: 0 0 6px; font-size: 1.6rem; } .legal-card .legal-updated { color: var(--muted); font-size: 0.85rem; margin: 0 0 28px; } .legal-card h2 { font-size: 1.05rem; margin: 32px 0 10px; } .legal-card h2:first-of-type { margin-top: 0; } .legal-card p, .legal-card li { color: var(--muted); font-size: 0.94rem; line-height: 1.65; } .legal-card ul { margin: 8px 0; padding-left: 20px; } .legal-card a { color: var(--accent); } .legal-card strong { color: var(--text); } .credit-item { padding: 16px 0; border-bottom: 1px solid var(--border); } .credit-item:last-child { border-bottom: none; } .credit-item h3 { margin: 0 0 4px; font-size: 0.98rem; } .credit-item p { margin: 0; } .credit-item .credit-license { display: inline-block; margin-top: 6px; padding: 2px 10px; border-radius: 999px; background: rgba(245, 185, 66, 0.14); color: var(--accent); font-size: 0.76rem; font-weight: 700; } .main-panel { display: flex; flex-direction: column; padding: 24px 36px 36px; } .topbar { display: flex; justify-content: flex-end; margin-bottom: 28px; } .topbar-spacer { flex: 1; } .top-actions { display: flex; align-items: center; gap: 12px; } .primary-btn, .secondary-btn, .ghost-btn { display: inline-flex; align-items: center; justify-content: center; padding: 11px 18px; border-radius: 999px; text-decoration: none; font-weight: 600; transition: transform 180ms ease, box-shadow 180ms ease; } .primary-btn { background: linear-gradient(135deg, var(--accent), var(--accent-strong)); color: #111; box-shadow: 0 15px 30px rgba(245, 185, 66, 0.2); } .secondary-btn, .ghost-btn { color: var(--text); background: rgba(255, 255, 255, 0.06); border: 1px solid var(--border); } .primary-btn:hover, .secondary-btn:hover, .ghost-btn:hover { transform: translateY(-1px); } .hero { flex: 1; display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: 30px; } .hero-copy { max-width: 560px; } .eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 0.9rem; letter-spacing: 0.24em; text-transform: uppercase; font-weight: 700; } .hero h2 { margin: 0 0 16px; font-size: clamp(2rem, 3vw, 3rem); line-height: 1.1; } .hero-text { margin: 0 0 24px; color: var(--muted); font-size: 1rem; line-height: 1.75; } .cta-row { display: flex; flex-wrap: wrap; gap: 12px; } .hero-media { display: flex; justify-content: center; } .board-wrapper { position: relative; width: min(100%, 520px); padding: 18px; border-radius: 28px; background: linear-gradient(145deg, rgba(255,255,255,0.09), rgba(255,255,255,0.04)); border: 1px solid var(--border); box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28); } .board-glow { position: absolute; inset: 20px; border-radius: 24px; background: radial-gradient(circle, rgba(245, 185, 66, 0.18), transparent 62%); z-index: 0; animation: glowPulse 3.2s ease-in-out infinite alternate; } .board { position: relative; aspect-ratio: 1; /* No overflow:hidden -- a rounded, clipped container with filtered/ GPU-layered children (.piece-el below) is a confirmed real trigger for a Chromium/GPU-driver bug that paints the whole area solid black on some hardware -- see the matching fix in bots.css/puzzles.css. */ border-radius: 14px; border: 4px solid #23262f; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.4), 0 20px 40px rgba(0, 0, 0, 0.35); background: #23262f; z-index: 1; } /* Squares are built once and never resized/rescaled — only the pieces layer on top of them animates, so the grid stays perfectly stable. */ .squares-layer { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); } .square { position: relative; min-height: 0; min-width: 0; } .square.dark { background: var(--square-dark, #4b5266); } .square.light { background: var(--square-light, #e8eaf0); } .square.from-highlight::after, .square.to-highlight::after { content: ""; position: absolute; inset: 0; background: rgba(120, 190, 255, 0.22); pointer-events: none; } .square.to-highlight::after { box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.4); } .coord-rank, .coord-file { position: absolute; font-family: Inter, "Segoe UI", Roboto, system-ui, sans-serif; font-size: 0.62rem; font-weight: 600; color: #8a99ad; pointer-events: none; line-height: 1; } .coord-rank { top: 4px; left: 5px; } .coord-file { bottom: 4px; right: 5px; } /* Pieces are persistent DOM nodes positioned by percentage, so a move just slides left/top — never a resize, never a re-render. */ .pieces-layer { position: absolute; inset: 0; z-index: 2; pointer-events: none; } /* Piece look itself (background-image via "wK"/"bP" classes) comes from css/pieces-cburnett.css; this just handles position/slide/opacity. */ .piece-el { position: absolute; width: 12.5%; height: 12.5%; transition: left 0.5s cubic-bezier(0.22, 0.61, 0.36, 1), top 0.5s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.35s ease; /* No filter/drop-shadow -- see the matching removal in bots.css. */ } .piece-el.is-resetting { opacity: 0; } .board-caption { position: relative; margin-top: 12px; padding: 10px 12px; border-radius: 999px; display: inline-flex; align-items: center; background: rgba(255,255,255,0.06); color: var(--muted); font-size: 0.95rem; z-index: 1; } @keyframes glowPulse { from { transform: scale(0.97); opacity: 0.65; } to { transform: scale(1.02); opacity: 1; } } @media (max-width: 960px) { .app-shell { grid-template-columns: 1fr; } /* Off-canvas drawer instead of stacking the full nav above the page content -- previously .sidebar just went position:static here, which meant every nav link (Play/Puzzles/Learn/Train/Watch/ Profile/Leaderboard/Coaching/Other) plus the footer rendered in full before any actual page content, so reaching the board, the Resign button, or anything else meant scrolling past the entire nav first every time. */ .sidebar { position: fixed; top: 0; left: 0; width: min(280px, 82vw); height: 100vh; height: 100dvh; border-right: 1px solid var(--border); border-bottom: none; transform: translateX(-100%); transition: transform 240ms ease; z-index: 100; overflow-y: auto; } .sidebar.is-open { transform: translateX(0); } .mobile-menu-btn { display: inline-flex; } .sidebar-close-btn { display: inline-flex; align-items: center; justify-content: center; align-self: flex-end; width: 32px; height: 32px; margin-bottom: 10px; border-radius: 8px; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.04); color: var(--text); font-size: 1rem; cursor: pointer; } .sidebar-backdrop { display: block; } .hero { grid-template-columns: 1fr; padding-top: 10px; } .hero-copy { max-width: none; } } @media (max-width: 640px) { .main-panel { padding: 20px; } .topbar { justify-content: flex-start; } .top-actions { width: 100%; justify-content: flex-end; } .board-wrapper { padding: 10px; } } /* Shared #toast (see frontend/js/toast.js) -- every page that loads toast.js needs this. Previously only defined in auth.css, so every other page's
rendered with no positioning/ background at all: showToast() still ran, but the message appeared unstyled and out of flow at the bottom of the DOM instead of as a floating notification -- invisible in practice. styles.css loads on every page, so defining it once here covers all of them. */ .toast { position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 12px); padding: 14px 22px; border-radius: 999px; background: var(--panel); border: 1px solid var(--border); color: var(--text); font-size: 0.9rem; font-weight: 600; box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4); opacity: 0; z-index: 2000; transition: opacity 220ms ease, transform 220ms ease; } .toast[hidden] { display: none; } .toast.is-visible { opacity: 1; transform: translate(-50%, 0); }