/* Teaching Tools Hub design system. Everything shared lives here and reaches every page through base.html. Tool templates use these components instead of styling themselves. Theming: tokens are defined on :root (light), redefined for dark under prefers-color-scheme, and overridden in both directions by the manual toggle, which stamps data-theme on and persists in localStorage. Components only ever reference tokens, never raw colors. */ /* ---------- Tokens: light ---------- */ :root { --color-bg: #f2f4f5; --color-surface: #ffffff; --color-ink: #1f2d3a; --color-muted: #56656f; --color-faint: #7b8894; --color-border: #dbe1e5; --color-border-strong: #b9c3c9; --color-link: #0f766e; --color-primary: #0f766e; --color-primary-hover: #0c5d57; --color-primary-soft: #e4f4f2; --color-primary-ring: rgba(15, 118, 110, 0.25); --color-stat-border: #bfe0db; --color-header: #14302b; --color-header-text: #ffffff; --color-header-link: #a9c6bf; --color-header-accent: #2dd4bf; --color-danger-bg: #fdf1f1; --color-danger-border: #f2c4c4; --color-danger-text: #a03030; --color-ok-bg: #e2f3e8; --color-ok-text: #1c6b3c; --color-off-bg: #fbe9e9; --color-off-text: #993838; --color-code-bg: #eceff1; --color-thead-bg: #f7f9fa; --color-row-border: #edf0f2; --color-bar-track: #e8edef; --seg-label: rgba(255, 255, 255, 0.95); --chart-1: #0f766e; --chart-2: #b45309; --chart-3: #6d28d9; --chart-4: #be185d; --chart-5: #1d4ed8; --chart-6: #4d7c0f; --shadow-card: 0 1px 2px rgba(31, 45, 58, 0.06); --shadow-lift: 0 6px 18px rgba(31, 45, 58, 0.1); --show-sun: none; --show-moon: block; --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; --radius-sm: 6px; --radius-md: 10px; --radius-lg: 14px; --content-width: 1040px; color-scheme: light; } /* ---------- Tokens: dark (OS preference) ---------- */ @media (prefers-color-scheme: dark) { :root { --color-bg: #12181c; --color-surface: #1b2429; --color-ink: #e6ecee; --color-muted: #a0aeb6; --color-faint: #7f8d95; --color-border: #2b3740; --color-border-strong: #43525b; --color-link: #4cd3c3; --color-primary: #0f766e; --color-primary-hover: #128a7d; --color-primary-soft: #16302d; --color-primary-ring: rgba(76, 211, 195, 0.25); --color-stat-border: #275f56; --color-header: #0f2420; --color-header-text: #ffffff; --color-header-link: #9dbdb5; --color-header-accent: #2dd4bf; --color-danger-bg: #35201f; --color-danger-border: #5f3434; --color-danger-text: #f0a3a3; --color-ok-bg: #17362a; --color-ok-text: #7fd8a3; --color-off-bg: #3a2426; --color-off-text: #eda2a2; --color-code-bg: #242f36; --color-thead-bg: #202b31; --color-row-border: #26313a; --color-bar-track: #26323a; --seg-label: #10181c; --chart-1: #34d0bf; --chart-2: #f0a24a; --chart-3: #b79df7; --chart-4: #f27daa; --chart-5: #7aa8f7; --chart-6: #a3d16e; --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow-lift: 0 6px 18px rgba(0, 0, 0, 0.5); --show-sun: block; --show-moon: none; color-scheme: dark; } } /* ---------- Tokens: manual override beats the OS preference ---------- */ :root[data-theme="dark"] { --color-bg: #12181c; --color-surface: #1b2429; --color-ink: #e6ecee; --color-muted: #a0aeb6; --color-faint: #7f8d95; --color-border: #2b3740; --color-border-strong: #43525b; --color-link: #4cd3c3; --color-primary: #0f766e; --color-primary-hover: #128a7d; --color-primary-soft: #16302d; --color-primary-ring: rgba(76, 211, 195, 0.25); --color-stat-border: #275f56; --color-header: #0f2420; --color-header-text: #ffffff; --color-header-link: #9dbdb5; --color-header-accent: #2dd4bf; --color-danger-bg: #35201f; --color-danger-border: #5f3434; --color-danger-text: #f0a3a3; --color-ok-bg: #17362a; --color-ok-text: #7fd8a3; --color-off-bg: #3a2426; --color-off-text: #eda2a2; --color-code-bg: #242f36; --color-thead-bg: #202b31; --color-row-border: #26313a; --color-bar-track: #26323a; --seg-label: #10181c; --chart-1: #34d0bf; --chart-2: #f0a24a; --chart-3: #b79df7; --chart-4: #f27daa; --chart-5: #7aa8f7; --chart-6: #a3d16e; --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow-lift: 0 6px 18px rgba(0, 0, 0, 0.5); --show-sun: block; --show-moon: none; color-scheme: dark; } :root[data-theme="light"] { --color-bg: #f2f4f5; --color-surface: #ffffff; --color-ink: #1f2d3a; --color-muted: #56656f; --color-faint: #7b8894; --color-border: #dbe1e5; --color-border-strong: #b9c3c9; --color-link: #0f766e; --color-primary: #0f766e; --color-primary-hover: #0c5d57; --color-primary-soft: #e4f4f2; --color-primary-ring: rgba(15, 118, 110, 0.25); --color-stat-border: #bfe0db; --color-header: #14302b; --color-header-text: #ffffff; --color-header-link: #a9c6bf; --color-header-accent: #2dd4bf; --color-danger-bg: #fdf1f1; --color-danger-border: #f2c4c4; --color-danger-text: #a03030; --color-ok-bg: #e2f3e8; --color-ok-text: #1c6b3c; --color-off-bg: #fbe9e9; --color-off-text: #993838; --color-code-bg: #eceff1; --color-thead-bg: #f7f9fa; --color-row-border: #edf0f2; --color-bar-track: #e8edef; --seg-label: rgba(255, 255, 255, 0.95); --chart-1: #0f766e; --chart-2: #b45309; --chart-3: #6d28d9; --chart-4: #be185d; --chart-5: #1d4ed8; --chart-6: #4d7c0f; --shadow-card: 0 1px 2px rgba(31, 45, 58, 0.06); --shadow-lift: 0 6px 18px rgba(31, 45, 58, 0.1); --show-sun: none; --show-moon: block; color-scheme: light; } /* ---------- Base ---------- */ * { box-sizing: border-box; } html { -webkit-text-size-adjust: 100%; } body { font-family: var(--font-sans); margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--color-bg); color: var(--color-ink); font-size: 16px; line-height: 1.6; } h1, h2, h3 { line-height: 1.25; letter-spacing: -0.015em; color: var(--color-ink); } h1 { font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem); margin: 0 0 8px; } h2 { font-size: 1.3rem; margin: 32px 0 12px; } h3 { font-size: 1.05rem; margin: 24px 0 8px; } p { margin: 0 0 14px; } a { color: var(--color-link); text-decoration: none; } a:hover { text-decoration: underline; } code { font-family: var(--font-mono); font-size: 0.85em; background: var(--color-code-bg); border-radius: 4px; padding: 2px 5px; } pre code { display: block; padding: 14px; overflow-x: auto; line-height: 1.5; } :focus-visible { outline: 2px solid var(--color-link); outline-offset: 2px; border-radius: 2px; } .visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; } @media (prefers-reduced-motion: reduce) { * { transition: none !important; } } /* ---------- Header and footer ---------- */ .site-header { background: var(--color-header); border-bottom: 3px solid var(--color-header-accent); } .header-inner { max-width: var(--content-width); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; } .site-title { display: inline-flex; align-items: center; gap: 10px; color: var(--color-header-text); font-weight: 650; font-size: 17px; letter-spacing: -0.01em; text-decoration: none; } .site-title:hover { text-decoration: none; } .brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 8px; background: var(--color-header-accent); color: #14302b; font-size: 13px; font-weight: 800; letter-spacing: 0; } .site-nav { display: flex; align-items: center; gap: 18px; } .site-nav a { color: var(--color-header-link); font-size: 14px; font-weight: 500; text-decoration: none; } .site-nav a:hover { color: #fff; } .nav-user { color: var(--color-header-link); font-size: 13px; } .nav-logout { margin: 0; } .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; padding: 0; background: transparent; border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 8px; color: var(--color-header-link); cursor: pointer; } .theme-toggle:hover { color: #fff; border-color: rgba(255, 255, 255, 0.5); } .theme-toggle svg { width: 16px; height: 16px; } .theme-toggle .icon-sun { display: var(--show-sun); } .theme-toggle .icon-moon { display: var(--show-moon); } .site-footer { margin-top: auto; padding: 28px 24px 32px; text-align: center; font-size: 13px; color: var(--color-faint); } /* ---------- Layout ---------- */ .content { width: 100%; max-width: var(--content-width); margin: 0 auto; padding: 36px 24px 48px; } .tool-shell { max-width: 780px; margin: 0 auto; } .page-intro { color: var(--color-muted); max-width: 56ch; margin: 0 0 28px; } .breadcrumb { font-size: 13px; color: var(--color-faint); margin-bottom: 10px; } .breadcrumb a { color: var(--color-faint); } .breadcrumb a:hover { color: var(--color-link); } /* ---------- Tool cards (landing) ---------- */ .tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 20px; } .tool-card { display: flex; flex-direction: column; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 22px; text-decoration: none; color: inherit; box-shadow: var(--shadow-card); transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease; } .tool-card:hover, .tool-card:focus-visible { border-color: var(--color-primary); box-shadow: var(--shadow-lift); transform: translateY(-2px); text-decoration: none; } .tool-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: var(--radius-md); background: var(--color-primary-soft); font-size: 24px; margin-bottom: 14px; } .tool-card h2 { font-size: 1.05rem; margin: 0 0 6px; } .tool-card p { font-size: 14px; color: var(--color-muted); margin: 0 0 16px; } .tool-card-footer { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; } .tool-version { font-size: 12px; font-weight: 600; color: var(--color-muted); background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 999px; padding: 2px 10px; } .tool-open { font-size: 14px; font-weight: 600; color: var(--color-link); } /* ---------- Buttons ---------- */ .button, .download-button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--color-primary); color: #fff; border: 1px solid transparent; padding: 10px 20px; border-radius: var(--radius-sm); text-decoration: none; font-family: var(--font-sans); font-weight: 600; font-size: 14.5px; line-height: 1.3; cursor: pointer; transition: background-color 0.15s ease; } .button:hover, .download-button:hover { background: var(--color-primary-hover); text-decoration: none; } .button-secondary { background: var(--color-surface); color: var(--color-ink); border-color: var(--color-border-strong); } .button-secondary:hover { background: var(--color-bg); border-color: var(--color-faint); } .button-small { padding: 6px 14px; font-size: 13px; } /* ---------- Forms ---------- */ label { font-size: 14px; font-weight: 550; color: var(--color-ink); } input[type="text"], input[type="email"], input[type="password"], input[type="number"], select, textarea { display: block; width: 100%; margin-top: 6px; padding: 10px 12px; border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); background: var(--color-surface); color: var(--color-ink); font-family: var(--font-sans); font-size: 15px; } input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-ring); } input[type="file"] { font-size: 14px; color: var(--color-muted); } input[type="file"]::file-selector-button { background: var(--color-surface); color: var(--color-ink); border: 1px solid var(--color-border-strong); border-radius: var(--radius-sm); padding: 8px 14px; margin-right: 12px; font-family: var(--font-sans); font-size: 13.5px; font-weight: 600; cursor: pointer; } input[type="file"]::file-selector-button:hover { background: var(--color-bg); } input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--color-primary); } .auth-form label { display: block; margin-bottom: 14px; } .auth-form .button { width: 100%; margin-top: 6px; } .form-error { background: var(--color-danger-bg); border: 1px solid var(--color-danger-border); color: var(--color-danger-text); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 14px; } /* ---------- Panels and cards ---------- */ .panel, .instructions, .auth-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-card); } .auth-card { max-width: 400px; margin: 40px auto; } .auth-card h1 { font-size: 1.4rem; margin-bottom: 18px; } .sso-buttons { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; } .auth-alt { font-size: 13.5px; color: var(--color-muted); margin: 18px 0 0; } .instructions > :first-child { margin-top: 0; } .instructions > :last-child { margin-bottom: 0; } .instructions img { max-width: 100%; height: auto; } /* ---------- Tables ---------- */ .table-wrap { overflow-x: auto; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-card); } .data-table, .admin-table { width: 100%; border-collapse: collapse; background: var(--color-surface); font-size: 14px; } .data-table th, .admin-table th { text-align: left; padding: 10px 16px; font-size: 12px; font-weight: 650; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-muted); background: var(--color-thead-bg); border-bottom: 1px solid var(--color-border); } .data-table td, .admin-table td { padding: 10px 16px; border-bottom: 1px solid var(--color-row-border); font-variant-numeric: tabular-nums; } .data-table tr:last-child td, .admin-table tr:last-child td { border-bottom: none; } /* ---------- Status pills ---------- */ .status-pill { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 650; } .status-on { background: var(--color-ok-bg); color: var(--color-ok-text); } .status-off { background: var(--color-off-bg); color: var(--color-off-text); } /* ---------- Uploads: drag-or-click dropzone ---------- */ .dropzone { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 36px 24px; border: 2px dashed var(--color-border-strong); border-radius: var(--radius-md); background: var(--color-bg); text-align: center; cursor: pointer; transition: border-color 0.15s ease, background-color 0.15s ease; } .dropzone:hover, .dropzone.is-dragover { border-color: var(--color-primary); background: var(--color-primary-soft); } .dropzone:focus-within { outline: 2px solid var(--color-link); outline-offset: 2px; } .dropzone-icon { color: var(--color-link); margin-bottom: 6px; } .dropzone-icon svg { width: 28px; height: 28px; } .dropzone-title { font-weight: 600; font-size: 15px; } .dropzone-hint { font-size: 13px; color: var(--color-muted); font-weight: 400; } .dropzone-file { margin-top: 6px; font-size: 13.5px; font-weight: 600; color: var(--color-link); } .upload-actions { margin-top: 18px; } /* ---------- Analysis results convention ---------- Shared components for any tool that turns an upload into an on-screen analysis (voting today, the document-integrity checker later): stat callouts for the headline numbers, labeled bar rows and stacked strips for distributions, tables demoted to a details fold, and downloads as the optional extra at the end. Candidate/series colors cycle through chart-c1..chart-c6. */ .file-chip { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 500; background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 999px; padding: 4px 14px; color: var(--color-muted); } .choice-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 20px; } .choice-chip input { position: absolute; opacity: 0; pointer-events: none; } .choice-chip span { display: inline-flex; align-items: center; gap: 6px; border: 1.5px solid var(--color-border-strong); border-radius: 999px; padding: 8px 18px; font-size: 14px; font-weight: 600; color: var(--color-muted); cursor: pointer; transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease; } .choice-chip span::before { content: "\2713"; width: 1em; font-weight: 700; opacity: 0; } .choice-chip input:checked + span { background: var(--color-primary-soft); border-color: var(--color-primary); color: var(--color-ink); } .choice-chip input:checked + span::before { opacity: 1; color: var(--color-link); } .choice-chip input:focus-visible + span { outline: 2px solid var(--color-link); outline-offset: 2px; } .result-block { margin-top: 40px; } .result-block > h2 { margin-top: 0; } .result-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px 28px; box-shadow: var(--shadow-card); margin-bottom: 20px; } .result-card > h3:first-child { margin-top: 0; } .stat-callout { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 20px; } .stat { flex: 1 1 160px; display: flex; flex-direction: column; gap: 2px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 16px 22px; box-shadow: var(--shadow-card); } .stat-first { background: var(--color-primary-soft); border-color: var(--color-stat-border); } .stat-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-muted); } .stat-first .stat-label { color: var(--color-link); } .stat-value { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; } .bar-chart { display: flex; flex-direction: column; gap: 10px; } .bar-row { display: grid; grid-template-columns: 110px 1fr 150px; gap: 12px; align-items: center; font-size: 14px; } .bar-label { text-align: right; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .bar-track { position: relative; display: block; height: 26px; border-radius: 6px; background: var(--color-bar-track); overflow: hidden; } .bar-fill { position: absolute; top: 0; bottom: 0; left: 0; min-width: 2px; border-radius: 6px; } .bar-value { font-size: 13px; color: var(--color-muted); white-space: nowrap; font-variant-numeric: tabular-nums; } .bar-row.is-eliminated .bar-fill { opacity: 0.35; } .bar-row.is-eliminated .bar-label { color: var(--color-faint); } .chart-c1 { background: var(--chart-1); } .chart-c2 { background: var(--chart-2); } .chart-c3 { background: var(--chart-3); } .chart-c4 { background: var(--chart-4); } .chart-c5 { background: var(--chart-5); } .chart-c6 { background: var(--chart-6); } .legend { display: flex; flex-wrap: wrap; gap: 14px; margin: 18px 0 10px; font-size: 13px; color: var(--color-muted); } .legend-item { display: inline-flex; align-items: center; gap: 7px; } .legend-dot { width: 12px; height: 12px; border-radius: 4px; } .stack-row { display: grid; grid-template-columns: 110px 1fr; gap: 12px; align-items: center; margin-bottom: 10px; font-size: 13.5px; } .stack-label { text-align: right; font-weight: 600; color: var(--color-muted); white-space: nowrap; } .stack-bar { display: flex; height: 28px; border-radius: 6px; background: var(--color-bar-track); overflow: hidden; } .stack-seg { display: inline-flex; align-items: center; justify-content: center; min-width: 0; overflow: hidden; } .seg-label { font-size: 12px; font-weight: 650; color: var(--seg-label); white-space: nowrap; } .round-group { margin-bottom: 20px; } .round-title { font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted); margin-bottom: 8px; } .tag-eliminated { display: inline-block; font-size: 11px; font-weight: 700; padding: 1px 8px; border-radius: 999px; background: var(--color-off-bg); color: var(--color-off-text); } .table-details { margin-top: 16px; } .table-details summary { cursor: pointer; font-size: 13.5px; font-weight: 600; color: var(--color-link); } .table-details[open] summary { margin-bottom: 12px; } .downloads-note { font-size: 13.5px; color: var(--color-muted); margin-bottom: 14px; } .result-downloads { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; } /* ---------- Small screens ---------- */ @media (max-width: 640px) { .header-inner { padding: 12px 16px; } .content { padding: 24px 16px 40px; } .site-nav { gap: 12px; } .panel, .instructions, .auth-card { padding: 20px; } .auth-card { margin: 16px auto; } .result-card { padding: 18px 20px; } .bar-row { grid-template-columns: 1fr; gap: 4px; } .bar-label { text-align: left; } .stack-row { grid-template-columns: 1fr; gap: 4px; } .stack-label { text-align: left; } }