/* --------------------------------------------------------------------- Image Format Converter — stylesheet Plain CSS, no framework. Supports light and dark OS theme via prefers-color-scheme. --------------------------------------------------------------------- */ :root { --bg: #f5f6f8; --bg-elevated: #ffffff; --bg-subtle: #eef0f3; --text: #1b1e23; --text-muted: #5b6270; --border: #dde1e6; --border-strong: #c3c9d1; --accent: #3363e0; --accent-hover: #2750bf; --accent-text: #ffffff; --danger: #c0362c; --danger-bg: #fbe9e7; --success: #1c8a4b; --focus-ring: #3363e0; --shadow: 0 1px 2px rgba(20, 24, 32, 0.06), 0 4px 12px rgba(20, 24, 32, 0.05); --radius: 10px; --radius-sm: 6px; } @media (prefers-color-scheme: dark) { :root { --bg: #14161a; --bg-elevated: #1d2026; --bg-subtle: #22262d; --text: #e7e9ec; --text-muted: #9aa1ad; --border: #2c313a; --border-strong: #3a4048; --accent: #6d8dff; --accent-hover: #86a1ff; --accent-text: #0d1117; --danger: #ff6b60; --danger-bg: #3a2020; --success: #4fce8e; --focus-ring: #6d8dff; --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35); } } /* Explicit theme overrides from js/theme.js, take precedence over the OS preference in either direction. "Auto" leaves data-theme unset, so the prefers-color-scheme query above still applies. */ :root[data-theme="dark"] { --bg: #14161a; --bg-elevated: #1d2026; --bg-subtle: #22262d; --text: #e7e9ec; --text-muted: #9aa1ad; --border: #2c313a; --border-strong: #3a4048; --accent: #6d8dff; --accent-hover: #86a1ff; --accent-text: #0d1117; --danger: #ff6b60; --danger-bg: #3a2020; --success: #4fce8e; --focus-ring: #6d8dff; --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35); } :root[data-theme="light"] { --bg: #f5f6f8; --bg-elevated: #ffffff; --bg-subtle: #eef0f3; --text: #1b1e23; --text-muted: #5b6270; --border: #dde1e6; --border-strong: #c3c9d1; --accent: #3363e0; --accent-hover: #2750bf; --accent-text: #ffffff; --danger: #c0362c; --danger-bg: #fbe9e7; --success: #1c8a4b; --focus-ring: #3363e0; --shadow: 0 1px 2px rgba(20, 24, 32, 0.06), 0 4px 12px rgba(20, 24, 32, 0.05); } * { box-sizing: border-box; } /* The native [hidden] behavior gets overridden by any same-specificity `display` rule that happens to come later in the cascade (e.g. our own `.control-group { display: flex }`). Force it to always win. */ [hidden] { display: none !important; } html, body { height: 100%; } body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji"; background: var(--bg); color: var(--text); line-height: 1.5; -webkit-font-smoothing: antialiased; } main { max-width: 980px; margin: 0 auto; padding: 0 1.5rem 4rem; } /* ---------------- Header / Footer ---------------- */ .site-header { max-width: 980px; margin: 0 auto; padding: 3rem 1.5rem 1.5rem; } .site-header-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; } .header-controls { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; } .colorblind-select-wrap select { min-width: 0; font-size: 0.8rem; padding: 0.45rem 1.8rem 0.45rem 0.65rem; background-position: right 0.5rem center; } .visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; } .visually-hidden-defs { position: absolute; width: 0; height: 0; } /* Color-vision-deficiency preview: applied to preview imagery only, set by js/colorblind.js via a data attribute on . */ body[data-colorblind="protanopia"] .file-thumb, body[data-colorblind="protanopia"] .compare-img, body[data-colorblind="protanopia"] .swatch { filter: url(#cb-protanopia); } body[data-colorblind="deuteranopia"] .file-thumb, body[data-colorblind="deuteranopia"] .compare-img, body[data-colorblind="deuteranopia"] .swatch { filter: url(#cb-deuteranopia); } body[data-colorblind="tritanopia"] .file-thumb, body[data-colorblind="tritanopia"] .compare-img, body[data-colorblind="tritanopia"] .swatch { filter: url(#cb-tritanopia); } .site-header h1 { margin: 0 0 0.4rem; font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em; } .h1-tagline { font-weight: 500; color: var(--text-muted); font-size: 0.6em; } @media (max-width: 480px) { .h1-tagline { display: none; } } .subtitle { margin: 0; color: var(--text-muted); font-size: 1rem; max-width: 60ch; } .subtitle kbd { font: inherit; font-size: 0.85em; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: 4px; padding: 0.05em 0.4em; } .trust-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; margin: 0.9rem 0 0; padding: 0; font-size: 0.82rem; color: var(--text-muted); } .trust-badges li { display: flex; align-items: center; gap: 0.35rem; } .trust-badges li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--success); flex: 0 0 auto; } .theme-toggle { display: inline-flex; align-items: center; gap: 0.4rem; font: inherit; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); background: var(--bg-elevated); border: 1px solid var(--border-strong); border-radius: 999px; padding: 0.4rem 0.8rem 0.4rem 0.6rem; cursor: pointer; flex: 0 0 auto; transition: border-color 0.15s ease, color 0.15s ease; } .theme-toggle:hover { border-color: var(--accent); color: var(--text); } .theme-icon { display: none; } /* js/theme.js sets data-effective="light"|"dark" on the button itself (resolving "auto" via matchMedia), so the icon always reflects what's actually on screen rather than the raw auto/light/dark setting. Shows the icon for the theme a click would switch *to*. */ .theme-toggle[data-effective="dark"] .theme-icon-sun, .theme-toggle[data-effective="light"] .theme-icon-moon { display: block; } .site-footer { max-width: 980px; margin: 2rem auto 0; padding: 1.5rem; color: var(--text-muted); font-size: 0.85rem; text-align: center; border-top: 1px solid var(--border); } .site-footer .copyright { margin-top: 0.5rem; font-size: 0.78rem; opacity: 0.8; } .footer-meta-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.9rem; margin-top: 0.9rem; } .footer-meta-links a { color: var(--text-muted); text-decoration: none; } .footer-meta-links a:hover { color: var(--accent); text-decoration: underline; } /* ---------------- Panels / generic ---------------- */ .panel { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem 1.5rem; } .control-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 1.25rem; } .control-row + .control-row { margin-top: 1rem; } .control-buttons { align-items: center; } .control-group { display: flex; flex-direction: column; gap: 0.4rem; min-width: 180px; } .control-group label, .field-label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; } /* ---------------- Form controls ---------------- */ select, input[type="range"], input[type="text"], input[type="number"] { font: inherit; color: var(--text); } input[type="text"], input[type="number"] { background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 0.5rem 0.6rem; } .rename-group { min-width: 220px; } .rename-hint { margin: 0.5rem 0 0; font-size: 0.78rem; color: var(--text-muted); } .rename-hint code { background: var(--bg-subtle); border-radius: 4px; padding: 0.05em 0.4em; font-size: 0.95em; } select { appearance: none; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 0.5rem 2rem 0.5rem 0.75rem; background-image: url("data:image/svg+xml;utf8,"); background-repeat: no-repeat; background-position: right 0.6rem center; background-size: 14px; cursor: pointer; min-width: 130px; } select:focus-visible, input:focus-visible, button:focus-visible, .drop-zone:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; } input[type="range"] { width: 100%; accent-color: var(--accent); } /* ---------------- Buttons ---------------- */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; font: inherit; font-weight: 600; font-size: 0.9rem; padding: 0.6rem 1.1rem; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease; user-select: none; white-space: nowrap; } .btn:disabled { opacity: 0.5; cursor: not-allowed; } .btn-primary { background: var(--accent); color: var(--accent-text); } .btn-primary:hover:not(:disabled) { background: var(--accent-hover); } .btn-secondary { background: var(--bg-subtle); color: var(--text); border-color: var(--border-strong); } .btn-secondary:hover:not(:disabled) { border-color: var(--accent); } .btn-ghost { background: transparent; color: var(--text-muted); border-color: transparent; } .btn-ghost:hover:not(:disabled) { background: var(--bg-subtle); color: var(--text); } .btn-small { padding: 0.45rem 0.8rem; font-size: 0.82rem; } .btn-tiny { padding: 0.25rem 0.6rem; font-size: 0.78rem; } .btn-remove { padding: 0.45rem 0.65rem; color: var(--text-muted); } .btn-remove:hover { color: var(--danger); background: var(--danger-bg); } /* ---------------- History panel ---------------- */ .history-panel { margin-top: 1rem; } .history-panel[hidden] { display: none; } .history-panel-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; } .history-panel-header h2 { font-size: 1rem; margin: 0; } .history-list { list-style: none; margin: 0.75rem 0 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; max-height: 320px; overflow-y: auto; } .history-row { display: flex; align-items: baseline; gap: 0.6rem; flex-wrap: wrap; font-size: 0.83rem; padding: 0.5rem 0.6rem; background: var(--bg-subtle); border-radius: var(--radius-sm); } .history-row .h-name { font-weight: 600; word-break: break-word; } .history-row .h-meta { color: var(--text-muted); } .history-row .h-time { margin-left: auto; color: var(--text-muted); font-size: 0.75rem; white-space: nowrap; } .history-empty[hidden] { display: none; } /* ---------------- Drop zone ---------------- */ .drop-zone { margin-top: 1.5rem; border: 2px dashed var(--border-strong); border-radius: var(--radius); background: var(--bg-elevated); padding: 2.5rem 1.5rem; text-align: center; cursor: pointer; transition: border-color 0.15s ease, background-color 0.15s ease; } .drop-zone:hover, .drop-zone.drag-over { border-color: var(--accent); background: var(--bg-subtle); } .drop-zone-content { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; } .drop-icon { color: var(--text-muted); margin-bottom: 0.25rem; } .drop-zone-title { margin: 0; font-weight: 600; font-size: 1.05rem; } .drop-zone-sub { margin: 0 0 0.5rem; color: var(--text-muted); font-size: 0.85rem; } .drop-zone-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; } /* ---------------- Empty state ---------------- */ .empty-state { text-align: center; color: var(--text-muted); padding: 2rem 1rem; font-size: 0.9rem; } .empty-state.hidden { display: none; } /* ---------------- File list ---------------- */ .file-list { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 1.25rem; } .file-row { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 0.9rem 1.1rem; } .file-main { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; } .file-thumb-wrap { position: relative; width: 64px; height: 64px; flex: 0 0 auto; border-radius: var(--radius-sm); background: linear-gradient(45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 12px 12px, linear-gradient(-45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 12px 12px, linear-gradient(45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 12px 12px, linear-gradient(-45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 12px 12px; background-color: var(--bg-elevated); overflow: hidden; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; } .file-thumb { max-width: 100%; max-height: 100%; object-fit: contain; display: block; } .file-thumb[hidden] { display: none; } .file-spinner { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--border-strong); border-top-color: var(--accent); animation: spin 0.8s linear infinite; } @keyframes spin { to { transform: rotate(360deg); } } .file-info { flex: 1 1 220px; min-width: 180px; } .file-name { font-weight: 600; font-size: 0.92rem; word-break: break-word; } .file-meta { color: var(--text-muted); font-size: 0.8rem; margin-top: 0.2rem; } .file-error { margin-top: 0.4rem; color: var(--danger); background: var(--danger-bg); border-radius: var(--radius-sm); padding: 0.4rem 0.6rem; font-size: 0.8rem; line-height: 1.4; } .file-error[hidden] { display: none; } .file-controls { display: flex; gap: 1rem; align-items: flex-end; flex-wrap: wrap; flex: 0 1 auto; } .field { display: flex; flex-direction: column; gap: 0.3rem; } .quality-field { min-width: 130px; } .quality-field[hidden] { display: none; } .row-actions { justify-content: flex-end; } .file-row.state-error .file-thumb-wrap { border-color: var(--danger); } .file-row.state-converted .file-name::after { content: " ✓"; color: var(--success); font-weight: 700; } .convert-success { display: flex; align-items: center; gap: 0.5rem; justify-content: flex-end; padding: 0.5rem 0.75rem; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--success) 12%, transparent); border: 1px solid color-mix(in srgb, var(--success) 35%, transparent); } .convert-success[hidden] { display: none; } .convert-success-icon { flex-shrink: 0; color: var(--success); } .convert-success-text { margin-right: auto; font-size: 0.85rem; color: var(--text); } /* ---------------- Recommendation badge ---------------- */ .file-recommend { display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; font-size: 0.8rem; } .file-recommend[hidden] { display: none; } .file-recommend span[data-role="recommend-text"] { color: var(--accent); font-weight: 500; } .file-recommend span[data-role="recommend-text"]::before { content: "✨ "; } /* ---------------- Details panel (Edit / Compare / Info) ---------------- */ .file-details { margin-top: 0.9rem; padding-top: 0.9rem; border-top: 1px solid var(--border); } .file-details[hidden] { display: none; } .details-toggle-btn { display: inline-flex; align-items: center; gap: 0.35rem; } .details-toggle-chevron { transition: transform 0.15s ease; } .details-toggle-btn[aria-expanded="true"] .details-toggle-chevron { transform: rotate(180deg); } /* Wrapping chip/icon toolbar, not underlined text tabs -- with 7 tools to list (Edit, Compare, Info, Export, OCR, Background, Upscale), text tabs either mid-word-wrap or need a horizontal scrollbar on a narrow card, both of which read as broken rather than intentional. Chips wrap as whole units instead. */ .details-tabs { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; } .details-tab { display: inline-flex; align-items: center; gap: 0.35rem; font: inherit; font-size: 0.8rem; font-weight: 600; white-space: nowrap; color: var(--text-muted); background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 999px; padding: 0.4rem 0.85rem; cursor: pointer; transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease; } .details-tab:hover { color: var(--text); border-color: var(--border-strong); } .details-tab[aria-selected="true"] { color: var(--accent-text); background: var(--accent); border-color: var(--accent); } .details-tab svg { flex: 0 0 auto; } .details-pane[hidden] { display: none; } /* ---------------- Edit toolbar ---------------- */ .edit-toolbar { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0.75rem; } .resize-row { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0.6rem; } .resize-field { min-width: 84px; max-width: 110px; } .resize-input { font: inherit; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 0.5rem 0.6rem; color: var(--text); width: 100%; } .resize-unit-select { min-width: 80px; } .lock-ratio-btn { display: inline-flex; align-items: center; justify-content: center; width: 2.3rem; height: 2.3rem; padding: 0; flex: 0 0 auto; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); color: var(--text-muted); cursor: pointer; /* Align with the bottom-aligned inputs either side of it, roughly at input baseline height including their label row. */ margin-bottom: 1px; } .lock-ratio-btn:hover { border-color: var(--accent); color: var(--text); } .lock-ratio-btn[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); } .lock-icon { display: none; } .lock-ratio-btn[aria-pressed="true"] .lock-icon-locked, .lock-ratio-btn[aria-pressed="false"] .lock-icon-unlocked { display: block; } .edit-hint { margin: 0.6rem 0 0; font-size: 0.8rem; color: var(--text-muted); } /* ---------------- Compare slider ---------------- */ .compare-wrap { max-width: 520px; } .compare-frame { position: relative; aspect-ratio: 4 / 3; max-height: 360px; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border); background: linear-gradient(45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(-45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px, linear-gradient(-45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px; background-color: var(--bg-elevated); } .compare-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; display: block; } .compare-after { clip-path: inset(0 calc(100% - var(--compare-pct, 50%)) 0 0); } .compare-divider { position: absolute; top: 0; bottom: 0; left: var(--compare-pct, 50%); width: 2px; margin-left: -1px; background: var(--accent-text); box-shadow: 0 0 0 1px var(--accent); pointer-events: none; } .compare-range { width: 100%; margin-top: 0.6rem; } /* ---------------- Remove Object (inpainting) ---------------- */ .remove-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.9rem; margin: 0.6rem 0; } .remove-brush-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.8rem; color: var(--text-muted); } .remove-canvas-wrap { position: relative; max-width: 520px; margin: 0.6rem 0; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border); background: linear-gradient(45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(-45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px, linear-gradient(-45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px; background-color: var(--bg-elevated); /* aspect-ratio is set inline via JS once the image loads */ touch-action: none; } .remove-canvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; } .remove-canvas-mask { cursor: crosshair; } .compare-labels { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); margin-top: 0.2rem; } .compare-hint { margin: 0.6rem 0 0; font-size: 0.8rem; color: var(--text-muted); } .compare-hint[hidden] { display: none; } /* ---------------- Info / EXIF panel ---------------- */ .info-list, .exif-list { display: grid; grid-template-columns: max-content 1fr; gap: 0.35rem 1rem; margin: 0; font-size: 0.85rem; } .info-list dt, .exif-list dt { color: var(--text-muted); } .info-list dd, .exif-list dd { margin: 0; word-break: break-word; } .exif-heading { font-size: 0.85rem; font-weight: 600; margin: 1rem 0 0.5rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; } .exif-heading[hidden] { display: none; } .exif-empty[hidden] { display: none; } /* ---------------- Duplicate notice ---------------- */ .file-duplicate { margin-top: 0.4rem; font-size: 0.8rem; color: var(--text-muted); background: var(--bg-subtle); border-radius: var(--radius-sm); padding: 0.4rem 0.6rem; } .file-duplicate[hidden] { display: none; } /* ---------------- Colors & optimization ---------------- */ .color-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; margin-bottom: 1rem; } .swatch-row { display: flex; gap: 0.4rem; } .swatch { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border-strong); box-shadow: var(--shadow); } .opt-score { display: flex; align-items: center; gap: 0.6rem; font-size: 0.85rem; } .opt-score-badge { display: inline-flex; align-items: center; justify-content: center; width: 2.6rem; height: 2.6rem; border-radius: 50%; font-weight: 700; font-size: 0.9rem; color: var(--accent-text); background: var(--accent); flex: 0 0 auto; } .opt-score-badge.score-low { background: var(--danger); } .opt-score-badge.score-mid { background: #c98a1c; } .opt-score-text strong { display: block; } .opt-score-text span { color: var(--text-muted); font-size: 0.8rem; } /* ---------------- Developer JSON ---------------- */ .dev-json-btn { margin-top: 0.5rem; } .dev-json { margin-top: 0.6rem; padding: 0.75rem; background: var(--bg-subtle); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.75rem; line-height: 1.5; overflow-x: auto; white-space: pre; } .dev-json[hidden] { display: none; } /* ---------------- Export presets ---------------- */ .preset-status { margin-left: 0.6rem; font-size: 0.8rem; color: var(--text-muted); } .preset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.6rem; margin-top: 0.6rem; } .preset-btn { display: flex; flex-direction: column; align-items: flex-start; gap: 0.15rem; font: inherit; text-align: left; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 0.6rem 0.75rem; cursor: pointer; transition: border-color 0.15s ease; } .preset-btn:hover { border-color: var(--accent); } .preset-btn strong { font-size: 0.85rem; } .preset-btn span { font-size: 0.75rem; color: var(--text-muted); } .ocr-result { display: block; width: 100%; min-height: 140px; margin-top: 0.75rem; font: inherit; font-size: 0.85rem; padding: 0.6rem; background: var(--bg-subtle); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); color: var(--text); resize: vertical; } .ocr-result[hidden] { display: none; } .bg-preview-wrap { margin-top: 0.75rem; max-width: 320px; max-height: 320px; border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--border); background: linear-gradient(45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(-45deg, var(--bg-subtle) 25%, transparent 25%) 0 0 / 16px 16px, linear-gradient(45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px, linear-gradient(-45deg, transparent 75%, var(--bg-subtle) 75%) 0 0 / 16px 16px; background-color: var(--bg-elevated); } .bg-preview-wrap[hidden] { display: none; } .bg-preview { display: block; max-width: 100%; max-height: 320px; } /* ---------------- Responsive ---------------- */ @media (max-width: 640px) { .site-header { padding: 2rem 1.25rem 1rem; } .site-header-top { flex-wrap: wrap; } main { padding: 0 1.25rem 3rem; } .control-row { align-items: stretch; } .control-buttons { flex-direction: column; align-items: stretch; } .control-buttons .btn { width: 100%; } .file-main { flex-direction: column; align-items: stretch; } .file-controls { justify-content: space-between; } .row-actions { justify-content: space-between; } } /* ---------------- SEO landing page content ---------------- */ .seo-content { max-width: 980px; margin: 2.5rem auto 0; padding: 0 1.5rem; color: var(--text); } .seo-content .breadcrumb { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 1.5rem; } .seo-content .breadcrumb a { color: var(--text-muted); } .seo-content h2 { font-size: 1.15rem; margin: 2rem 0 0.75rem; } .seo-content > p { color: var(--text); max-width: 70ch; line-height: 1.6; } .faq-list { display: flex; flex-direction: column; gap: 1.1rem; } .faq-item h3 { font-size: 0.95rem; margin: 0 0 0.35rem; } .faq-item p { margin: 0; color: var(--text-muted); max-width: 70ch; line-height: 1.6; } .related-links { display: flex; flex-wrap: wrap; gap: 0.6rem 1.5rem; list-style: none; padding: 0; margin: 0; } .related-links a { color: var(--accent); text-decoration: none; font-size: 0.9rem; } .related-links a:hover { text-decoration: underline; } .content-page { margin-bottom: 3rem; } .content-page a { color: var(--accent); } .hub-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0.5rem 1rem; list-style: none; padding: 0; margin: 0 0 1.5rem; } .hub-links a { display: block; padding: 0.6rem 0.9rem; border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); text-decoration: none; font-size: 0.9rem; background: var(--bg-elevated); } .hub-links a:hover { border-color: var(--accent); color: var(--accent); } .footer-links { max-width: 980px; margin: 0 auto 1.5rem; padding: 0 1.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; justify-content: center; font-size: 0.8rem; } .footer-links a { color: var(--text-muted); } /* ---------------- Reduced motion ---------------- */ @media (prefers-reduced-motion: reduce) { .file-spinner { animation: none; border-top-color: var(--border-strong); } .btn, .theme-toggle, .drop-zone, .details-tab { transition: none; } }