/* Kidney Care 1.1.3 - light theme + app shell (Home banner, tool grid, tab bar, tracker, quiz, reminders, library).
   Loaded after styles.css: overrides the dark palette through the same variables. Logical properties only, so ar/ur mirror. */
:root {
  --teal: #0f7491; --teal-2: #0b5f77; --teal-soft: #e3f1f5; --ink: #12303a;
  --text: #17323c; --muted: #5a6f78; --aqua: #0f7491; --violet: #0b5f77; --magenta: #0f7491;
  --card: #ffffff; --card-b: #dbe5e9; --bg: #f2f5f7;
  --danger: #b3261e; --danger-bg: #fdecea; --warn: #8a5a00; --warn-bg: #fff4de; --ok: #1b7a4b; --ok-bg: #e5f5ec;
  --radius: 16px; --tap: 48px; --tabbar-h: 64px;
  --grad: linear-gradient(90deg, var(--teal), var(--teal-2));
  color-scheme: light;
}
html { background: var(--bg) !important; background-image: none !important; }
body { color: var(--text); background: var(--bg); padding-block-end: calc(var(--tabbar-h) + env(safe-area-inset-bottom, 0px)); }
a { color: var(--teal); }
:focus-visible { outline: 3px solid #0f7491; outline-offset: 2px; }
.skip-link { background: var(--teal); color: #fff; }
.card, .books-details { background: var(--card); border-color: var(--card-b); backdrop-filter: none; box-shadow: 0 1px 2px rgba(18,48,58,.05); }
.card h3 { color: var(--teal); }
.disclaimer-card { border: 1px dashed #b7c7cd; background: #fff; color: var(--text); font-weight: 600; font-size: 14px; }
.disclaimer-strong { color: var(--warn); }
.check { background: var(--teal-soft); }
.btn { border-width: 1.5px; }
.btn-primary { color: #fff; background: var(--teal); box-shadow: none; }
.btn-primary:hover { background: var(--teal-2); }
.btn-ghost { color: var(--teal); border-color: #9fc1cc; background: #fff; }
.btn-danger { color: #fff; background: var(--danger); border-color: var(--danger); }
.chip { background: #fff; border-color: #c4d4da; color: var(--text); }
.chip:hover { border-color: var(--teal); }
.chip[aria-pressed="true"], .chip-radio:has(input:checked) { background: var(--teal-soft); border-color: var(--teal); box-shadow: none; }
.chip-tick { border-color: #8aa4ad; }
.chip[aria-pressed="true"] .chip-tick { background: var(--teal); border-color: var(--teal); }
.chip[aria-pressed="true"] .chip-tick::after { border-color: #fff; }
.chip-radio { cursor: pointer; }
.chip-radio input { accent-color: var(--teal); inline-size: 20px; block-size: 20px; margin: 0; }
.chip-sm { min-block-size: 36px; padding: 6px 14px; font-size: 14px; border-radius: 999px; flex: 0 0 auto; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; margin-block: 8px 12px; }
.chip-scroll { flex-wrap: nowrap; overflow-x: auto; padding-block-end: 6px; scrollbar-width: none; }
.tag { background: var(--teal-soft); border-color: #b5d6df; }
.field input, .field select { background: #fff; color: var(--text); border-color: #b7c9cf; }
.field input:focus, .field select:focus { border-color: var(--teal); }
.field legend { color: var(--text); }
.result-box { background: var(--teal-soft); border-color: #9cc9d6; }
.result-warn { background: var(--warn-bg); border-color: #e0b468; }
.alert-emergency { background: var(--danger-bg); color: #5f1410; border-color: var(--danger); }
.alert-urgent { background: var(--warn-bg); color: #4d3300; border-color: #d9a441; }
.note { border-inline-start-color: var(--teal); }
.pill { background: #e8eef0; color: var(--ink); border: 0; }
.pill-ok { background: var(--ok-bg); color: var(--ok); }
.pill-warn { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.g-track { background: #dbe5e9; }
.g-fill { background: var(--teal); }
table.heat th, table.heat td { border-color: #c4d4da; }
.risk-low { background: #d3efe0; } .risk-moderate { background: #fff0c9; color: #4d3300; } .risk-high { background: #ffd9c9; } .risk-very-high { background: #ffc3bd; }
.aud-backdrop { background: rgba(10,30,40,.55); }
.aud-card { background: #fff; color: var(--text); border-color: var(--card-b); }
.aud-card .mode-card { color: var(--text); }
.top-lang-select { color: var(--text); border-color: #b7c9cf; }
.lang-opts { background: #e8eef0; }
.lang-btn { color: var(--text); }
.lang-btn:hover { background: #dbe5e9; }
.lang-btn[aria-pressed="true"] { color: #fff; background: var(--teal); }
.lang-switch-label { color: var(--muted); }
.hub-kind { color: var(--teal); }
.book-card { background: #fff; }
.book-card.is-live, a.book-card:hover { border-color: var(--teal); }
.gallery-page { color: var(--teal); }
.footer { padding-block-end: 24px; }
.footer-brand { background: none; -webkit-text-fill-color: var(--teal); color: var(--teal); }
.page-title { color: var(--ink); display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.section-title { color: var(--muted); }
.section-title.dark { color: var(--ink); font-size: 18px; }
.list-link { display: flex; align-items: center; gap: 10px; padding: 12px 14px; min-block-size: 52px; background: #fff; border: 1px solid var(--card-b); border-radius: 14px; color: var(--text); text-decoration: none; font: inherit; inline-size: 100%; text-align: start; cursor: pointer; flex-wrap: wrap; }
.list-link strong { flex: 1 1 auto; }
.list-link .small { flex-basis: 100%; }
.list-link svg { color: var(--teal); flex: 0 0 auto; }
.plain-list { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 8px; }
.list-row { display: flex; justify-content: space-between; gap: 8px; padding: 12px 14px; background: #fff; border: 1px solid var(--card-b); border-radius: 12px; }
.small { font-size: 13px; }
.tick-list { padding-inline-start: 20px; }
.privacy-line { font-size: 13.5px; color: var(--ink); background: var(--teal-soft); border-radius: 12px; padding: 10px 12px; margin-block: 10px; }
.alert-organiser { margin-block: 8px 14px; padding: 10px 12px; border-radius: 12px; background: var(--warn-bg); color: #4d3300; font-weight: 600; font-size: 14px; border: 1px solid #e3c27f; }
.form-error { color: var(--danger); background: var(--danger-bg); padding: 8px 12px; border-radius: 10px; font-weight: 600; }
.row-start { justify-content: flex-start; }
.stack { display: grid; gap: 10px; margin-block: 12px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.empty { text-align: center; }

/* header */
.topbar { background: #fff; max-inline-size: none; border-block-end: 1px solid var(--card-b); padding: 10px 16px; position: sticky; inset-block-start: 0; z-index: 20; padding-block-start: max(10px, env(safe-area-inset-top, 0px)); }
.brand { color: var(--ink); gap: 12px; }
.brand-logo { display: grid; place-items: center; inline-size: 44px; block-size: 44px; border-radius: 12px; background: var(--teal); color: #fff; }
.brand-by { color: var(--muted); }
.wordmark { font-size: 19px; color: var(--ink); }
.icon-btn { color: var(--ink); background: transparent; border: 0; cursor: pointer; }
.icon-btn:hover { background: #e8eef0; }
.mode-badge.mode-clinician, .mode-badge.mode-patient { color: var(--teal); border-color: #9fc1cc; }
main { padding-block-end: 24px; }

/* banner + tool grid */
.banner { background: linear-gradient(135deg, #0f7491, #0c647d); color: #fff; border-radius: 20px; padding: 22px 20px; margin-block: 12px 18px; position: relative; overflow: hidden; }
.banner::after { content: ""; position: absolute; inset-inline-end: -40px; inset-block-start: -40px; inline-size: 160px; block-size: 160px; border-radius: 50%; background: rgba(255,255,255,.08); }
.banner-kicker { margin: 0 0 6px; font-size: 12px; font-weight: 800; letter-spacing: .12em; opacity: .9; }
.banner-title { margin: 0 0 8px; font-size: 30px; font-weight: 800; color: #fff; line-height: 1.15; }
.banner-sub { margin: 0; font-size: 15px; opacity: .95; max-inline-size: 28ch; }
.tool-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-block: 0 18px; }
.tool-card { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 16px 14px; background: #fff; border: 1px solid var(--card-b); border-radius: 16px; min-block-size: 132px; text-align: start; font: inherit; color: var(--text); cursor: pointer; box-shadow: 0 1px 2px rgba(18,48,58,.06); }
.tool-card:active { background: var(--teal-soft); }
.tool-ic { color: var(--teal); margin-block-end: 6px; display: block; }
.tool-ic svg { inline-size: 32px; block-size: 32px; stroke-width: 1.6; }
.tool-title { font-weight: 800; font-size: 16px; color: var(--ink); line-height: 1.2; }
.tool-sub { font-size: 13px; color: var(--muted); }
.sec-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.sec-link { font-weight: 700; font-size: 14px; color: var(--teal); text-decoration: none; }
.feat-list { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 10px; }
.feat-card { display: flex; gap: 12px; align-items: center; padding: 10px; inline-size: 100%; background: #fff; border: 1px solid var(--card-b); border-radius: 16px; font: inherit; color: var(--text); text-align: start; cursor: pointer; }
.feat-thumb { flex: 0 0 56px; inline-size: 56px; block-size: 56px; border-radius: 12px; background: var(--teal-soft); color: var(--teal); display: grid; place-items: center; overflow: hidden; }
.feat-thumb img { inline-size: 100%; block-size: 100%; object-fit: cover; }
.feat-text { display: grid; gap: 2px; min-inline-size: 0; }
.feat-title { font-weight: 800; font-size: 15.5px; color: var(--ink); line-height: 1.25; }
.feat-sub { font-size: 13px; color: var(--muted); }
.feat-card.feat-soon { cursor: default; background: #f6f8fa; border-style: dashed; opacity: .78; }
.feat-soon .feat-thumb { filter: grayscale(.35); }
.feat-badge { margin-inline-start: auto; flex: 0 0 auto; align-self: flex-start; font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 999px; background: #fdecea; color: #c2553f; white-space: nowrap; }
.aud-line { font-size: 13.5px; color: var(--muted); margin-block: 0 14px; }
.books-col { display: none; }
body[data-route="hub"] .books-col { display: block; }
@media (min-width: 1024px) { body { padding-inline-end: 0; } body[data-route="hub"] .books-col { position: static; inline-size: auto; max-block-size: none; max-inline-size: 760px; margin: 0 auto 16px; padding-inline: 16px; } }

/* bottom tab bar */
.tabbar { position: fixed; inset-inline: 0; inset-block-end: 0; z-index: 30; display: flex; background: #fff; border-block-start: 1px solid var(--card-b); padding-block-end: env(safe-area-inset-bottom, 0px); box-shadow: 0 -2px 10px rgba(18,48,58,.06); }
.tab { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; min-block-size: var(--tabbar-h); color: var(--muted); text-decoration: none; font-size: 12px; font-weight: 700; padding: 6px 2px; }
.tab svg { inline-size: 24px; block-size: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tab.is-active { color: var(--teal); }
.tab.is-active svg { fill: var(--teal-soft); }
body[data-route="start"] .tabbar, body.hide-tabs .tabbar { display: none; }
@media (min-width: 900px) { .tabbar { max-inline-size: 760px; margin-inline: auto; border-inline: 1px solid var(--card-b); } }

/* stat cards */
.stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-block: 12px; }
.stat-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat-card { display: flex; flex-direction: column; gap: 2px; background: #fff; border: 1px solid var(--card-b); border-radius: 14px; padding: 12px; color: var(--text); text-decoration: none; text-align: start; }
.stat-ic { color: var(--teal); }
.stat-n { font-size: 24px; font-weight: 800; color: var(--ink); line-height: 1.1; }
.stat-l { font-size: 13px; font-weight: 700; color: var(--text); }
.stat-s { font-size: 12px; color: var(--muted); }
.progress { display: block; block-size: 10px; border-radius: 999px; background: #dbe5e9; overflow: hidden; margin-block: 8px; }
.progress > span { display: block; block-size: 100%; background: var(--teal); border-radius: 999px; }
.bar-list { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 10px; }
.bar-list li { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; align-items: center; font-size: 13.5px; }
.bar-list .progress { grid-column: 1 / -1; margin: 0; }

/* tracker */
.trk-grid { display: grid; gap: 12px; }
.chart-card { background: #fff; border: 1px solid var(--card-b); border-radius: 16px; padding: 12px 14px; margin-block: 12px; }
.chart-card h3 { margin: 0 0 4px; font-size: 15px; color: var(--ink); text-transform: none; letter-spacing: 0; }
.chart-card svg { inline-size: 100%; block-size: auto; display: block; }
.chart-card .axis, .chart svg text { fill: var(--muted); }
.entry-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.entry-row { display: flex; justify-content: space-between; gap: 8px; align-items: center; background: #fff; border: 1px solid var(--card-b); border-radius: 12px; padding: 10px 12px; }

/* quiz */
.quiz-top { display: flex; justify-content: space-between; align-items: center; margin-block: 4px; }
.quiz-card { padding: 16px; }
.quiz-topic { font-size: 12.5px; font-weight: 700; color: var(--teal); margin: 0 0 6px; }
.quiz-stem { font-size: 18px; margin-block-end: 14px; color: var(--ink); }
.quiz-opts { display: grid; gap: 8px; }
.quiz-opt { display: flex; gap: 10px; align-items: flex-start; text-align: start; font: inherit; color: var(--text); background: #fff; border: 1.5px solid #c4d4da; border-radius: 14px; padding: 12px; min-block-size: var(--tap); cursor: pointer; }
.quiz-opt:disabled { cursor: default; color: var(--text); opacity: 1; }
.quiz-opt .opt-l { flex: 0 0 26px; block-size: 26px; border-radius: 50%; background: var(--teal-soft); color: var(--teal); font-weight: 800; display: grid; place-items: center; font-size: 13px; }
.quiz-opt.right { border-color: var(--ok); background: var(--ok-bg); } .quiz-opt.right .opt-l { background: var(--ok); color: #fff; }
.quiz-opt.wrong { border-color: var(--danger); background: var(--danger-bg); } .quiz-opt.wrong .opt-l { background: var(--danger); color: #fff; }
.quiz-fb { margin-block: 14px 8px; padding: 12px 14px; border-radius: 12px; }
.quiz-fb.ok { background: var(--ok-bg); border: 1px solid #a8d8bd; }
.quiz-fb.no { background: var(--warn-bg); border: 1px solid #e3c27f; }
.quiz-fb p { margin: 6px 0 0; }
.result-card { text-align: center; }
.big-score { font-size: 44px; font-weight: 800; margin: 0; color: var(--teal); }
.big-sub { font-size: 20px; font-weight: 700; margin: 0 0 8px; }

/* reminders */
.rem-list { list-style: none; margin: 14px 0; padding: 0; display: grid; gap: 10px; }
.rem-row { display: flex; gap: 12px; align-items: center; background: #fff; border: 1px solid var(--card-b); border-radius: 14px; padding: 12px; }
.rem-row.is-off { opacity: .6; }
.rem-ic { flex: 0 0 40px; block-size: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal); }
.rem-text { flex: 1 1 auto; display: grid; gap: 1px; min-inline-size: 0; }
.rem-title { font-weight: 800; color: var(--ink); overflow-wrap: anywhere; }
.rem-meta, .rem-next { font-size: 12.5px; color: var(--muted); }
.rem-act { display: grid; gap: 6px; justify-items: end; }
.switch { position: relative; display: inline-block; inline-size: 46px; block-size: 26px; }
.switch input { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; opacity: 0; margin: 0; cursor: pointer; z-index: 1; }
.switch span { position: absolute; inset: 0; background: #b7c9cf; border-radius: 999px; transition: background .15s; }
.switch span::after { content: ""; position: absolute; inset-block-start: 3px; inset-inline-start: 3px; inline-size: 20px; block-size: 20px; border-radius: 50%; background: #fff; transition: transform .15s; }
.switch input:checked + span { background: var(--teal); }
.switch input:checked + span::after { transform: translateX(20px); }
[dir="rtl"] .switch input:checked + span::after { transform: translateX(-20px); }
.switch input:focus-visible + span { outline: 3px solid var(--teal); outline-offset: 2px; }

/* library */
.search-field input { inline-size: 100%; }
.lib-list { list-style: none; margin: 0 0 14px; padding: 0; display: grid; gap: 8px; }
.lib-row { display: flex; align-items: stretch; background: #fff; border: 1px solid var(--card-b); border-radius: 14px; overflow: hidden; }
.lib-main { flex: 1 1 auto; display: grid; gap: 2px; padding: 10px 12px; color: var(--text); text-decoration: none; min-inline-size: 0; }
.lib-type { font-size: 11.5px; font-weight: 800; color: var(--teal); text-transform: uppercase; letter-spacing: .05em; }
.lib-title { font-weight: 800; color: var(--ink); }
.lib-snip { font-size: 13px; color: var(--muted); }
.bm-btn { display: inline-grid; place-items: center; inline-size: 48px; min-block-size: 48px; background: transparent; border: 0; color: var(--muted); cursor: pointer; flex: 0 0 auto; }
.bm-btn svg { fill: none; }
.bm-btn[aria-pressed="true"] { color: var(--teal); }
.bm-btn[aria-pressed="true"] svg { fill: var(--teal); }
.bm-title { margin-inline-start: auto; }

/* menu sheet + toast */
.sheet-backdrop { align-items: flex-end; padding: 0; }
.sheet { background: #fff; color: var(--text); inline-size: 100%; max-inline-size: 560px; border-radius: 20px 20px 0 0; padding: 16px; max-block-size: 85vh; overflow: auto; }
.sheet-head { display: flex; justify-content: space-between; align-items: center; margin-block-end: 8px; font-size: 18px; }
.sheet .list-link { margin-block-end: 0; }
.toast { position: fixed; inset-inline: 16px; inset-block-end: calc(var(--tabbar-h) + 16px + env(safe-area-inset-bottom, 0px)); z-index: 200; margin-inline: auto; max-inline-size: 420px; background: #12303a; color: #fff; border-radius: 12px; padding: 12px 16px; font-weight: 600; text-align: center; opacity: 0; transform: translateY(8px); pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.show { opacity: 1; transform: none; }
.confirm-card { max-inline-size: 420px; }
.confirm-msg { margin-block: 0 16px; font-weight: 600; }
.sr-only { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.about-author .author-name { font-size: 20px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.ltr { direction: ltr; text-align: start; }
@media print { .tabbar, .topbar, .no-print { display: none !important; } body { background: #fff; padding: 0; } }

/* audience cards */
.mode-card { background: #fff !important; border: 1.5px solid #9fc1cc; color: var(--text); }
.mode-card:hover { box-shadow: 0 4px 16px rgba(15,116,145,.18); }
.mode-icon { background: var(--teal-soft); color: var(--teal) !important; }
.mode-name { color: var(--ink); }
.mode-desc { color: var(--muted); }
.mode-card[aria-pressed="true"] { border-color: var(--teal); background: var(--teal-soft) !important; }
.field select, .field input { inline-size: 100%; max-inline-size: 100%; }
.card li strong { margin-inline-end: 6px; }
.card ul.kv-list { list-style: none; padding: 0; margin: 8px 0; }
.kv-list li { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-block-end: 1px solid #edf1f3; margin: 0; }
.kv-list li:last-child { border: 0; }

/* Symptoms Tracker (1.1.4) */
.tool-card.tool-wide { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 14px; min-block-size: 0; padding-block: 14px; background: linear-gradient(135deg, #fff, var(--teal-soft)); }
.tool-card.tool-wide .tool-ic { margin: 0; }
.tool-txt { display: flex; flex-direction: column; gap: 4px; }
.sym-item { border: 0; border-block-end: 1px solid var(--card-b); padding: 10px 0; margin: 0; }
.sym-item legend { font-weight: 700; color: var(--ink); padding: 0; margin-block-end: 6px; }
.seg { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.seg-opt { position: relative; }
.seg-opt input { position: absolute; opacity: 0; inset: 0; }
.seg-opt span { display: block; text-align: center; padding: 8px 2px; border: 1px solid var(--card-b); border-radius: 10px; font-size: 12.5px; background: #fff; }
.seg-opt b { display: block; font-size: 15px; }
.seg-opt input:checked + span { background: var(--teal); color: #fff; border-color: var(--teal); }
.seg-opt input:focus-visible + span { outline: 2px solid var(--teal); outline-offset: 2px; }
.sym-note summary { cursor: pointer; color: var(--teal); font-size: 13px; margin-block-start: 6px; }
.sym-note p { font-size: 13px; color: var(--text); margin: 4px 0 0; }
.sym-flags .check { display: flex; gap: 8px; margin-block: 6px; }
.sym-flag { display: block; color: #8a1c14; font-weight: 700; font-size: 13px; }
.sym-mini h3 { font-size: 14px; }