/*
 * TextAnalyzer Pro: the tool's own components, styled in the site's design language (7 Oct 2026, on the UltraCompress Pro
 * template, after TextTransform). Base: /libs/site-pages.css (tokens, Inter and Space Grotesk, buttons, theme toggle, focus
 * rings) and /libs/shared-nav.css (the site's header and footer). This file holds only what the tool itself needs: the
 * toolbar with the status pill and the six pill tabs, the text box, the cards, the stat tiles and detail lists, the grade
 * scale, the suggestion notes, the readability metric grid, the tone scale and chips, the frequency bars and tables, the
 * highlighted text, the canvases, the windows, the range slider, the toasts, print and the information sections.
 * Light is the default; dark applies when <html> has no data-theme.
 */

/* ----- Tokens the tool adds ----- */
:root {
    --surface: #ffffff;
    --surface-2: #f3f4f8;
    --ring: rgba(139, 92, 246, 0.18);
    --app-max: 1600px;
    --radius-lg: 16px;
    --pos: #10b981;
    --neg: #ef4444;
    --warn: #92400e;
}
:root:not([data-theme="light"]) {
    --surface: #14141f;
    --warn: #f59e0b;
    --surface-2: rgba(255, 255, 255, 0.05);
}

/* ----- Page: full width, the page provides the side space ----- */
.container.app-container { max-width: calc(var(--app-max) + 2 * var(--content-gutter)); margin-top: 16px; }
@media (min-width: 640px) { .container.app-container { margin-top: 24px; } }

/* ----- Tools back link above the header, as on every other tool ----- */
body { padding-top: 0; }
.back-bar { height: 48px; display: flex; align-items: center; padding: 0 var(--zdu-gutter, 24px); }
body > header { position: sticky; top: 0; z-index: 50; }
header .site-nav { position: relative; top: auto; }
.theme-toggle { top: calc(90px + var(--bar-offset, 48px)); }
@media (max-width: 768px) { .theme-toggle { top: calc(75px + var(--bar-offset, 48px)); } }
.hidden-input { display: none; }
[hidden] { display: none !important; }

/* ----- Hero ----- */
.app-hero { margin: 0 0 2rem; text-align: center; }
.app-brand { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 1.25rem; font-family: 'Space Grotesk', 'Inter', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--text-strong); }
.app-brand img { width: 44px; height: 44px; border-radius: 12px; display: block; }
.app-hero h1 { margin-bottom: 0.75rem; }
.app-tagline { color: var(--text-2); font-size: 1.125rem; line-height: 1.6; max-width: 46rem; margin: 0 auto; }

/* ----- Buttons ----- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 9999px; font-family: inherit; font-weight: 600; font-size: 0.95rem; line-height: 1.2; padding: 12px 24px; cursor: pointer; text-decoration: none; white-space: nowrap; transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3); }
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4); color: #fff; }
.btn-secondary { background: var(--surface); color: var(--text-strong); border: 1px solid var(--surface-border); padding: 11px 23px; }
.btn-secondary:hover:not(:disabled) { border-color: var(--brand); color: var(--link); transform: translateY(-2px); }
.btn-danger { background: var(--surface); color: var(--danger); border: 1px solid rgba(185, 28, 28, 0.35); padding: 11px 23px; }
.btn-danger:hover:not(:disabled) { background: var(--danger-strong); color: #fff; border-color: transparent; transform: translateY(-2px); }
.btn-sm { font-size: 0.85rem; padding: 9px 16px; }
.btn-secondary.btn-sm, .btn-danger.btn-sm { padding: 8px 15px; }
.btn-icon.btn-sm { width: 38px; height: 38px; padding: 0; }
.btn-icon.btn-sm svg { width: 17px; height: 17px; }
.btn-stack { display: flex; flex-wrap: wrap; gap: 8px; }
.btn-stack--top { margin-top: 14px; }

/* ----- Toolbar and tabs ----- */
.app-shell { margin: 0 0 3rem; scroll-margin-top: 90px; }
.app-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; margin: 0 0 1.25rem; }
.toolbar-left, .toolbar-right { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.status-pill { display: inline-flex; align-items: center; gap: 10px; padding: 6px 16px 6px 10px; border-radius: 9999px; border: 1px solid var(--tint-brand-border); background: var(--tint-brand); min-width: 260px; max-width: 100%; }
.status-icon { font-size: 1.3rem; line-height: 1; }
.status-text { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.status-main { font-weight: 700; font-size: 0.85rem; color: var(--text-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status-sub { font-size: 0.72rem; color: var(--text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.view-tabs { display: inline-flex; gap: 4px; padding: 4px; border-radius: 9999px; background: var(--surface-2); max-width: 100%; margin: 0 0 20px; }
.view-tab { padding: 8px 18px; border: 0; border-radius: 9999px; background: transparent; font-family: inherit; font-size: 0.85rem; font-weight: 600; color: var(--text-2); cursor: pointer; white-space: nowrap; transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease; }
.view-tab:hover { color: var(--link); }
.view-tab.active { background: var(--gradient-brand); color: #fff; box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3); }
.view-tab:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
kbd { font-family: inherit; font-size: 0.72rem; font-weight: 700; padding: 1px 6px; border-radius: 6px; border: 1px solid var(--chip-border); background: var(--chip); color: var(--text-strong); }

/* ----- Cards ----- */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-bottom: 20px; }
.card-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-lg); box-shadow: var(--surface-shadow); overflow: hidden; display: flex; flex-direction: column; min-width: 0; margin-bottom: 0; }
.app-shell > .card, .view > .card { margin-bottom: 20px; }
.card-header { padding: 14px 20px; border-bottom: 1px solid var(--surface-border); display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.card-title { margin: 0; font-size: 1.05rem; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.card-note { font-size: 0.8125rem; color: var(--text-3); }
.card-body { padding: 16px 20px 20px; flex: 1; }
.sub-title { font-size: 0.95rem; font-weight: 700; margin: 18px 0 8px; color: var(--text-strong); }
.sub-title--first { margin-top: 0; }
.form-hint { font-size: 0.78rem; color: var(--text-3); margin: 10px 0 0; line-height: 1.5; }
.form-hint--top { margin: 0 0 12px; }
.form-group { margin-bottom: 18px; min-width: 0; }
.form-group:last-child { margin-bottom: 0; }
.form-label { display: block; margin-bottom: 6px; font-size: 0.85rem; font-weight: 600; color: var(--text-strong); }
.num-strong { font-weight: 700; color: var(--text-strong); font-variant-numeric: tabular-nums; }

/* ----- Text boxes ----- */
.text-box { width: 100%; min-height: 220px; resize: vertical; padding: 14px 16px; background: var(--field); border: 1px solid var(--field-border); border-radius: 12px; font-family: inherit; font-size: 0.95rem; line-height: 1.55; color: var(--text); outline: none; transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.text-box:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--ring); }
.text-box.drag-over { border-color: var(--brand); background: var(--tint-brand); }
.text-box::placeholder { color: var(--placeholder); }
.text-box--compare { min-height: 180px; }
.selection-banner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin-top: 12px; padding: 10px 14px; border-radius: 12px; background: var(--tint-brand); border: 1px solid var(--tint-brand-border); font-size: 0.85rem; font-weight: 600; color: var(--text-strong); }

/* ----- Tiles and detail lists ----- */
.stat-tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.stat-tiles--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat-tiles--four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat-tile { background: var(--surface-2); border: 1px solid var(--surface-border); border-radius: 12px; padding: 12px 10px; text-align: center; display: flex; flex-direction: column; gap: 2px; border-top: 3px solid var(--brand); min-width: 0; }
.stat-num { font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: 1.4rem; font-weight: 700; color: var(--text-strong); font-variant-numeric: tabular-nums; line-height: 1.1; overflow-wrap: anywhere; }
.stat-tiles--big .stat-num { font-size: 1.75rem; }
.stat-label { font-size: 0.72rem; color: var(--text-3); line-height: 1.3; }
.detail-list { display: grid; grid-template-columns: 1fr; gap: 0; margin: 14px 0 0; }
.detail-list--spaced { margin-top: 16px; }
.detail-list div { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--surface-border); min-width: 0; }
.detail-list dt { font-size: 0.8rem; color: var(--text-2); }
.detail-list dd { margin: 0; font-weight: 700; color: var(--text-strong); font-variant-numeric: tabular-nums; font-size: 0.9rem; text-align: right; white-space: nowrap; }
.detail-list dd.wrap { white-space: normal; overflow-wrap: anywhere; }
.detail-list dd small { font-weight: 500; color: var(--text-3); font-size: 0.75rem; }
.metric-help { display: inline-block; margin-left: 4px; color: var(--text-3); font-size: 0.85em; cursor: help; }

/* ----- Reading level ----- */
.grade-display { display: flex; align-items: baseline; justify-content: center; gap: 8px; margin: 6px 0 10px; }
.grade-num { font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: 3rem; font-weight: 700; line-height: 1; background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.grade-unit { font-size: 0.9rem; color: var(--text-3); font-weight: 600; }
.grade-track { position: relative; height: 12px; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--surface-border); margin: 0 0 22px; }
.grade-fill { height: 100%; border-radius: 6px; background: var(--gradient-brand); width: 0; transition: width 0.4s ease; }
.grade-tick { position: absolute; top: 14px; transform: translateX(-50%); font-size: 0.68rem; color: var(--text-3); }
.grade-tick::before { content: ''; position: absolute; left: 50%; top: -14px; width: 1px; height: 10px; background: var(--chip-border); }
.level-content { margin-top: 14px; }
.level-content p { font-size: 0.875rem; color: var(--text-2); margin: 8px 0 0; line-height: 1.55; }
.level-chip { display: inline-block; padding: 4px 12px; border-radius: 9999px; background: var(--tint-brand); border: 1px solid var(--tint-brand-border); color: var(--text-strong); font-size: 0.78rem; font-weight: 700; }

/* ----- Suggestion notes ----- */
.note-list { display: flex; flex-direction: column; gap: 10px; }
.note { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--surface-border); border-left-width: 4px; background: var(--surface-2); }
.note p { margin: 0; font-size: 0.875rem; color: var(--text); line-height: 1.5; }
.note-icon { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 800; color: #fff; background: #38bdf8; }
.note--warning { border-left-color: var(--warn); } .note--warning .note-icon { background: var(--warn); }
.note--success { border-left-color: var(--pos); } .note--success .note-icon { background: var(--pos); }
.note--info { border-left-color: #38bdf8; }
#readabilityWarning { margin-bottom: 16px; }

/* ----- Readability metrics ----- */
.metric-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.metric { background: var(--surface-2); border: 1px solid var(--surface-border); border-radius: 12px; padding: 14px 16px; min-width: 0; }
.metric-name { margin: 0 0 6px; font-size: 0.85rem; font-weight: 700; color: var(--text-strong); }
.metric-value { margin: 0; font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: 2rem; font-weight: 700; line-height: 1.1; background: var(--gradient-brand); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.metric-note { margin: 6px 0 0; font-size: 0.78rem; color: var(--text-3); line-height: 1.4; }
.plain-list { margin: 0; padding-left: 1.1rem; }
.plain-list li { font-size: 0.875rem; color: var(--text-2); margin-bottom: 10px; line-height: 1.55; }
.plain-list li:last-child { margin-bottom: 0; }

/* ----- Tone ----- */
.tone-body { text-align: center; }
.tone-face { font-size: 3.5rem; line-height: 1; margin: 6px 0 10px; }
.tone-label { margin: 0; font-family: 'Space Grotesk', 'Inter', sans-serif; font-size: 1.5rem; font-weight: 700; color: var(--text-strong); }
.tone-scale { position: relative; height: 12px; border-radius: 6px; margin: 18px 10px 6px; background: linear-gradient(90deg, #ef4444 0%, #f59e0b 30%, #94a3b8 50%, #84cc16 70%, #10b981 100%); }
.tone-marker { position: absolute; top: -5px; width: 22px; height: 22px; margin-left: -11px; border-radius: 50%; background: var(--surface); border: 3px solid var(--text-strong); box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25); transition: left 0.4s ease; }
.tone-scale-labels { display: flex; justify-content: space-between; font-size: 0.7rem; color: var(--text-3); padding: 0 2px; }
.balance-row { margin-bottom: 14px; }
.balance-head { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-2); margin-bottom: 6px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 9999px; background: var(--chip); border: 1px solid var(--chip-border); color: var(--text-strong); font-size: 0.78rem; font-weight: 600; }
#sn-posWords .chip { background: rgba(16, 185, 129, 0.1); border-color: rgba(16, 185, 129, 0.35); }
#sn-negWords .chip { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.35); }
.chip--count { font-size: 0.72rem; padding: 2px 8px; }

/* ----- Frequency bars, tables and lists ----- */
.freq-list { display: flex; flex-direction: column; gap: 6px; }
.freq-row { display: grid; grid-template-columns: 96px minmax(0, 1fr) 96px; align-items: center; gap: 10px; font-size: 0.82rem; }
.freq-row--wide { grid-template-columns: 150px minmax(0, 1fr) 84px; }
.freq-row--tight { grid-template-columns: 28px minmax(0, 1fr) 60px; }
.freq-row--strong .freq-key, .freq-row--strong .freq-count { color: var(--link); }
.freq-key { font-family: 'Space Grotesk', 'Inter', monospace; font-weight: 700; color: var(--text-strong); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.freq-bar { height: 10px; border-radius: 5px; background: var(--surface-2); overflow: hidden; }
.freq-bar i { display: block; height: 100%; border-radius: 5px; background: var(--gradient-brand); transition: width 0.3s ease; }
.freq-bar--pos i { background: linear-gradient(90deg, #10b981, #059669); }
.freq-bar--neg i { background: linear-gradient(90deg, #ef4444, #dc2626); }
.freq-bar--band0 i { background: linear-gradient(90deg, #10b981, #059669); }
.freq-bar--band1 i { background: linear-gradient(90deg, #3b82f6, #2563eb); }
.freq-bar--band2 i { background: linear-gradient(90deg, #f59e0b, #d97706); }
.freq-bar--band3 i { background: linear-gradient(90deg, #ef4444, #dc2626); }
.freq-count { font-size: 0.75rem; color: var(--text-3); text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.list-empty { color: var(--text-3); font-size: 0.875rem; margin: 0; padding: 10px 0; line-height: 1.5; }
.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.data-table th, .data-table td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--surface-border); color: var(--text); white-space: nowrap; }
.data-table th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-3); font-weight: 600; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table td:first-child, #densityList .data-table td:last-child, #targetsList .data-table td, #compareResults .data-table td:last-child { white-space: normal; }
.delta-up { color: #047857; font-weight: 700; } .delta-down { color: #b91c1c; font-weight: 700; } .delta-ok { color: #047857; font-weight: 600; }
:root:not([data-theme="light"]) .delta-up, :root:not([data-theme="light"]) .delta-ok { color: #34d399; }
:root:not([data-theme="light"]) .delta-down { color: #f87171; }
.para-list { display: flex; flex-direction: column; gap: 8px; }
.para-row { display: grid; grid-template-columns: 28px minmax(0, 1.4fr) minmax(0, 1fr) 118px; align-items: center; gap: 10px; font-size: 0.82rem; }
.para-num { font-weight: 700; color: var(--text-3); font-variant-numeric: tabular-nums; }
.para-text { color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.plain-rows { display: flex; flex-direction: column; gap: 8px; }
.plain-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 8px 12px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--surface-border); font-size: 0.85rem; }
.plain-from { font-weight: 700; color: var(--text-strong); text-decoration: line-through; text-decoration-color: rgba(239, 68, 68, 0.6); }
.plain-arrow { color: var(--text-3); }
.plain-to { font-weight: 700; color: var(--link); }
.plain-row .chip--count { margin-left: auto; }
.quote-list { display: flex; flex-direction: column; gap: 8px; }
.quote { margin: 0; padding: 8px 12px; border-left: 3px solid var(--brand); background: var(--surface-2); border-radius: 0 10px 10px 0; font-size: 0.85rem; color: var(--text); line-height: 1.5; }

/* ----- Highlighted text ----- */
.hl-legend { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 0.78rem; color: var(--text-2); margin-bottom: 12px; }
.hl-legend span { display: inline-flex; align-items: center; gap: 6px; }
.hl-swatch { display: inline-block; width: 14px; height: 14px; border-radius: 4px; }
.hl-swatch--long, .hl--long { background: rgba(245, 158, 11, 0.22); }
.hl-swatch--very, .hl--very { background: rgba(239, 68, 68, 0.22); }
.hl-text { font-size: 0.95rem; line-height: 1.8; color: var(--text); max-height: 420px; overflow: auto; padding: 12px 14px; border: 1px solid var(--surface-border); border-radius: 12px; background: var(--field); }
.hl { border-radius: 4px; padding: 1px 2px; }
.hl--long { box-shadow: inset 0 -2px 0 rgba(245, 158, 11, 0.7); }
.hl--very { box-shadow: inset 0 -2px 0 rgba(239, 68, 68, 0.75); }

/* ----- Canvases ----- */
.canvas-wrap { position: relative; width: 100%; min-height: 240px; }
.canvas-wrap--short { min-height: 240px; }
.canvas-wrap canvas { display: block; width: 100%; }
.canvas-empty { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; text-align: center; padding: 20px; }

/* ----- Export options ----- */
.export-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.export-option { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--surface-border); background: var(--surface-2); font-family: inherit; text-align: left; cursor: pointer; color: var(--text-strong); transition: border-color 0.2s ease, transform 0.2s ease; }
.export-option:hover { border-color: var(--brand); transform: translateY(-2px); }
.export-option:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.export-option strong { font-size: 0.95rem; }
.export-option span { font-size: 0.78rem; color: var(--text-3); line-height: 1.4; }

/* ----- Saved analyses ----- */
.saved-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 8px; }
.saved-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--surface-border); background: var(--surface-2); }
.saved-main { min-width: 0; flex: 1 1 260px; }
.saved-title { margin: 0 0 2px; font-weight: 700; color: var(--text-strong); font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-meta { margin: 0; font-size: 0.75rem; color: var(--text-3); }
.saved-actions { display: flex; gap: 8px; flex-shrink: 0; }
.trend-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; margin-top: 8px; }
.shortcut-list { margin: 0; display: flex; flex-direction: column; gap: 10px; }
.shortcut-list div { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 0.875rem; color: var(--text); }
.shortcut-list dt { white-space: nowrap; }
.shortcut-list dd { margin: 0; text-align: right; color: var(--text-2); }

/* ----- Range slider (the fill follows the value) ----- */
.range-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 8px; }
.range-head .form-label { margin: 0; }
.range-value { font-size: 0.85rem; font-weight: 700; color: var(--link); font-variant-numeric: tabular-nums; }
.range { --fill: 43%; width: 100%; height: 8px; appearance: none; -webkit-appearance: none; border-radius: 4px; background: linear-gradient(90deg, #8B5CF6 0%, #EC4899 var(--fill), var(--surface-2) var(--fill), var(--surface-2) 100%); border: 1px solid var(--surface-border); outline: none; cursor: pointer; }
.range::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 3px solid #8B5CF6; box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25); cursor: pointer; }
.range::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid #8B5CF6; box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25); cursor: pointer; }
.range:focus-visible { box-shadow: 0 0 0 3px var(--ring); }
.range-marks { display: flex; justify-content: space-between; font-size: 0.7rem; color: var(--text-3); margin-top: 6px; }

/* ----- Windows ----- */
.modal-overlay { position: fixed; inset: 0; background: rgba(10, 10, 20, 0.6); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 1000; opacity: 0; visibility: hidden; transition: opacity 0.25s ease, visibility 0.25s ease; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: var(--surface); border: 1px solid var(--surface-border); border-radius: 20px; box-shadow: 0 24px 64px rgba(0, 0, 0, 0.35); width: 100%; max-width: 560px; max-height: 92vh; overflow: hidden; display: flex; flex-direction: column; transform: translateY(12px); transition: transform 0.25s ease; }
.modal--narrow { max-width: 420px; }
.modal--wide { max-width: 760px; }
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header { padding: 18px 20px; border-bottom: 1px solid var(--surface-border); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.modal-title { margin: 0; font-size: 1.15rem; }
.modal-close { width: 36px; height: 36px; flex-shrink: 0; border-radius: 50%; border: 1px solid var(--chip-border); background: var(--chip); color: var(--text-strong); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: border-color 0.2s ease, color 0.2s ease; }
.modal-close:hover { border-color: var(--brand); color: var(--link); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--surface-border); display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap; }
.confirm-message { margin: 0; color: var(--text); }

/* ----- Toasts ----- */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 3000; display: flex; flex-direction: column; gap: 10px; max-width: calc(100vw - 32px); }
.toast { background: #0a0a14; color: #fff; border: 1px solid rgba(255, 255, 255, 0.12); border-left: 4px solid var(--brand); border-radius: 14px; padding: 12px 16px; display: flex; align-items: center; gap: 12px; box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3); min-width: 260px; max-width: 400px; font-size: 0.875rem; font-weight: 500; overflow-wrap: anywhere; animation: slideIn 0.3s ease; transition: opacity 0.3s ease, transform 0.3s ease; }
.toast-icon { font-size: 0.95rem; font-weight: 700; line-height: 1; width: 22px; height: 22px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: rgba(255, 255, 255, 0.12); flex-shrink: 0; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.toast.success { border-left-color: #4ade80; } .toast.error { border-left-color: #f87171; } .toast.warning { border-left-color: #fbbf24; } .toast.info { border-left-color: #38bdf8; }
.toast.leaving { opacity: 0; transform: translateX(40px); }

/* ----- Information sections ----- */
.info-section { margin: 0 0 2.5rem; }
.info-section h2 { font-size: 1.75rem; margin: 0 0 1.25rem; }
.info-section .info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 1rem 0 1.5rem; }
.info-stack { display: grid; gap: 12px; }
.info-card { background: var(--surface); border: 1px solid var(--surface-border); border-radius: 16px; box-shadow: var(--surface-shadow); padding: 20px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.info-card:hover { transform: translateY(-4px); box-shadow: var(--surface-hover-shadow); }
.info-card--small { padding: 16px; box-shadow: none; }
.info-card h3 { margin: 0 0 0.75rem; font-size: 1.15rem; }
.info-card p { color: var(--text-2); margin-bottom: 0.75rem; }
.info-card p:last-child { margin-bottom: 0; }
.step-card { position: relative; padding-top: 24px; }
.step-num { position: absolute; top: -16px; left: 20px; width: 34px; height: 34px; border-radius: 50%; background: var(--gradient-brand); color: #fff; font-weight: 700; font-size: 0.95rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3); }
.step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 0.75rem; }
.step-head h3 { margin: 0; }
.step-emoji { font-size: 1.6rem; line-height: 1; }
.info-section details.info-card { padding: 0; }
.info-section details.info-card summary { cursor: pointer; padding: 16px 20px; font-weight: 600; color: var(--text-strong); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.info-section details.info-card summary::-webkit-details-marker { display: none; }
.info-section details.info-card summary::after { content: '+'; color: var(--link); font-weight: 700; font-size: 1.2rem; line-height: 1; flex-shrink: 0; }
.info-section details.info-card[open] summary::after { content: '\2212'; }
.info-section details.info-card p { padding: 0 20px 16px; margin: 0; color: var(--text-2); }

/* ----- Tablets ----- */
@media (max-width: 1023px) {
    .card-grid, .card-grid--two { grid-template-columns: 1fr; }
    .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .info-section .info-grid { grid-template-columns: repeat(2, 1fr); }
    .info-three { grid-template-columns: 1fr; }
}

/* ----- Phones ----- */
@media (max-width: 639px) {
    .app-hero { margin-bottom: 1.5rem; }
    .app-tagline { font-size: 1rem; }
    .app-toolbar { gap: 10px; }
    .toolbar-left, .toolbar-right { width: 100%; }
    .status-pill { flex: 1; min-width: 0; }
    .toolbar-right .btn { flex: 1 1 auto; }
    .toolbar-right .btn-icon { flex: 0 0 38px; }
    .view-tabs { width: 100%; flex-wrap: wrap; border-radius: 18px; }
    .view-tab { flex: 1 1 30%; padding: 8px 4px; font-size: 0.76rem; text-align: center; }
    .card-grid, .card-grid--two { gap: 14px; margin-bottom: 14px; }
    .app-shell > .card, .view > .card { margin-bottom: 14px; }
    .card-header { padding-left: 16px; padding-right: 16px; }
    .card-body { padding: 14px 16px 16px; }
    .text-box { min-height: 180px; }
    .stat-tiles--three, .stat-tiles--four, .stat-tiles--big { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .metric-grid { grid-template-columns: 1fr; }
    .freq-row { grid-template-columns: 72px minmax(0, 1fr) 84px; }
    .freq-row--wide { grid-template-columns: 110px minmax(0, 1fr) 70px; }
    .para-row { grid-template-columns: 24px minmax(0, 1fr) 100px; }
    .para-row .freq-bar { display: none; }
    .export-grid, .trend-grid { grid-template-columns: 1fr; }
    .modal-overlay { padding: 8px; }
    .modal-body, .modal-header, .modal-footer { padding-left: 16px; padding-right: 16px; }
    .toast-container { bottom: 16px; right: 16px; left: 16px; align-items: flex-end; }
    .toast { min-width: 0; }
    .info-section h2 { font-size: 1.4rem; }
    .info-section .info-grid, .info-three { grid-template-columns: 1fr; }
    .info-card { padding: 16px; }
    .step-num { left: 16px; }
}

/* ----- Print: every tab on one page ----- */
@media print {
    .back-bar, body > header, .theme-toggle, .app-hero, .app-toolbar, .view-tabs, .info-section, .site-footer, .toast-container, .modal-overlay, .btn, .btn-stack, .form-hint, .selection-banner, #zdu-cookie-banner { display: none !important; }
    body.printing .view[hidden] { display: block !important; }
    .container.app-container { max-width: none; padding: 0; margin: 0; }
    .card { box-shadow: none; break-inside: avoid; }
    .card-grid, .card-grid--two { grid-template-columns: 1fr 1fr; }
    .text-box { min-height: 0; height: auto; }
    .grade-num, .metric-value { color: #000; background: none; -webkit-text-fill-color: #000; }
    .hl-text { max-height: none; }
}

@media (prefers-reduced-motion: reduce) {
    .btn, .info-card, .modal, .toast, .chip, .view-tab, .text-box, .freq-bar i, .grade-fill, .tone-marker, .export-option { transition: none; animation: none; }
}

/* Phones: 16 px text, 44 px tap targets (AdSense audit H-04, 8 Oct 2026) */
@media (max-width: 639.98px) {
    main button, main select, main summary, main [role="button"],
    main input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="file"]) { min-height: 44px; }
    div#baselineContent > p.list-empty,
    div#readingLevelContent.level-content > p.list-empty,
    div#sectionBreakdown.para-list > p.list-empty,
    div#suggestionsList.note-list > p.list-empty,
    div.card-body > p#ov-gradeLabel.form-hint,
    div.card-body > p.form-hint { font-size: 1rem; }
    main button#shortcutsBtn { min-width: 44px; }
}