/* =============================================================
   KALKU — herramientas para estudiantes
   styles.css — hoja única, organizada por secciones
   ============================================================= */

/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #eef0f8;
  --border: #e0e3ee;
  --text: #191c28;
  --text-muted: #5b6274;
  --accent: #4338ca;
  --accent-strong: #362bab;
  --accent-soft: #eceafc;
  --accent-contrast: #ffffff;
  --ok: #15803d;
  --ok-soft: #e7f6ec;
  --warn: #b45309;
  --warn-soft: #fdf1de;
  --bad: #b91c1c;
  --bad-soft: #fdeaea;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(20, 22, 40, 0.06);
  --shadow: 0 6px 20px -4px rgba(20, 22, 40, 0.12), 0 2px 6px -2px rgba(20,22,40,.06);
  --shadow-lg: 0 20px 45px -12px rgba(20, 22, 40, 0.22);
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1160px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #101220;
    --surface: #171a2a;
    --surface-2: #1d2133;
    --border: #2a2f45;
    --text: #eef0f8;
    --text-muted: #a3aac0;
    --accent: #8b83f0;
    --accent-strong: #a29bf5;
    --accent-soft: #24234a;
    --accent-contrast: #14152a;
    --ok: #4ade80;
    --ok-soft: #113322;
    --warn: #fbbf58;
    --warn-soft: #3a2a12;
    --bad: #f87171;
    --bad-soft: #3a1616;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
    --shadow: 0 6px 20px -4px rgba(0,0,0,.45), 0 2px 6px -2px rgba(0,0,0,.3);
    --shadow-lg: 0 20px 45px -12px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"] {
  --bg: #101220;
  --surface: #171a2a;
  --surface-2: #1d2133;
  --border: #2a2f45;
  --text: #eef0f8;
  --text-muted: #a3aac0;
  --accent: #8b83f0;
  --accent-strong: #a29bf5;
  --accent-soft: #24234a;
  --accent-contrast: #14152a;
  --ok: #4ade80;
  --ok-soft: #113322;
  --warn: #fbbf58;
  --warn-soft: #3a2a12;
  --bad: #f87171;
  --bad-soft: #3a1616;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
[hidden] { display: none !important; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
input, select, textarea { font: inherit; color: inherit; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; letter-spacing: -0.01em; font-weight: 800; }
ul, ol { padding-left: 1.2rem; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem;
  background: var(--text); color: var(--bg); z-index: 9999;
  border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 1.25rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.section-head { max-width: 62ch; margin-bottom: 2rem; }
.section-head p { color: var(--text-muted); margin-top: .5rem; font-size: 1.05rem; }
.eyebrow {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--accent);
}

/* =============================================================
   4. Typography scale
   ============================================================= */
h1 { font-size: clamp(1.9rem, 4.4vw, 2.7rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin-block: 2rem .75rem; }
h3 { font-size: 1.15rem; margin-block: 1.25rem .5rem; }
.tool-content p, .tool-content li { margin-bottom: .85rem; color: var(--text); }
.tool-content { max-width: 72ch; }
.tool-content > h2:first-child { margin-top: 0; }

/* =============================================================
   5. Components
   ============================================================= */

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .8rem 1.4rem; border-radius: var(--radius-sm); font-weight: 700;
  font-size: .98rem; transition: transform .15s var(--ease-out), background .15s var(--ease-out), box-shadow .15s var(--ease-out);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-contrast); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-strong); transform: translateY(-1px); }
.btn-ghost { background: var(--surface-2); color: var(--text); }
.btn-ghost:hover { background: var(--border); }
.btn-lg { padding: 1rem 1.6rem; font-size: 1.05rem; width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn-icon { width: 2.4rem; height: 2.4rem; padding: 0; border-radius: 50%; background: var(--surface-2); }
.btn-icon:hover { background: var(--border); }

/* --- Header / nav --- */
.site-header {
  position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
@supports not (backdrop-filter: blur(1px)) { .site-header { background: var(--surface); } }
.site-header .container { display: flex; align-items: center; gap: 1rem; height: 64px; }
.logo { display: flex; align-items: center; gap: .5rem; font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 1rem; font-weight: 800; flex-shrink: 0;
}
.main-nav { display: none; align-items: center; gap: 1.5rem; margin-left: 1rem; }
.main-nav a { font-weight: 600; font-size: .95rem; color: var(--text-muted); }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: .6rem; margin-left: auto; }
.nav-toggle { display: flex; }
@media (min-width: 960px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
}

/* Mobile nav panel */
.mobile-nav {
  position: fixed; inset: 64px 0 0 0; background: var(--bg); z-index: 49;
  padding: 1.5rem 1.25rem; overflow-y: auto; transform: translateY(-8px);
  opacity: 0; pointer-events: none; transition: opacity .18s var(--ease-out), transform .18s var(--ease-out);
}
.mobile-nav.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.mobile-nav a {
  display: block; padding: .9rem .2rem; font-weight: 700; font-size: 1.05rem;
  border-bottom: 1px solid var(--border);
}

/* --- Search --- */
.search-wrap { position: relative; }
.search-box {
  display: flex; align-items: center; gap: .5rem; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 999px; padding: .5rem .9rem; width: 100%;
}
.search-box svg { flex-shrink: 0; opacity: .6; width: 18px; height: 18px; }
.search-box input {
  border: 0; background: none; outline: none; width: 100%; font-size: .95rem; color: var(--text);
}
.search-trigger { display: flex; }
@media (min-width: 720px) { .search-trigger { display: none; } }
.header-search { display: none; width: 240px; }
@media (min-width: 720px) { .header-search { display: block; } }

.search-results {
  position: absolute; top: calc(100% + 8px); left: 0; right: 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  max-height: 60vh; overflow-y: auto; z-index: 60; padding: .4rem;
}
.search-results:not([data-open]) { display: none; }
.search-result {
  display: flex; align-items: center; gap: .7rem; padding: .65rem .6rem; border-radius: var(--radius-sm);
}
.search-result:hover, .search-result:focus-visible { background: var(--surface-2); }
.search-result .sr-icon {
  width: 34px; height: 34px; border-radius: 8px; background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.search-result .sr-title { font-weight: 700; font-size: .92rem; }
.search-result .sr-cat { font-size: .78rem; color: var(--text-muted); }
.search-empty { padding: 1rem; color: var(--text-muted); font-size: .9rem; text-align: center; }

.search-modal-backdrop {
  position: fixed; inset: 0; background: rgba(10,10,20,.5); z-index: 70; padding: 8vh 1rem;
  overflow-y: auto;
}
.search-modal-backdrop:not([data-open]) { display: none; }
.search-modal {
  background: var(--surface); border-radius: var(--radius-lg); max-width: 560px; margin-inline: auto;
  box-shadow: var(--shadow-lg); padding: 1rem; border: 1px solid var(--border);
}

/* --- Breadcrumbs --- */
.breadcrumbs { padding-block: 1rem .5rem; font-size: .85rem; color: var(--text-muted); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; padding: 0; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: .35rem; color: var(--border); }
.breadcrumbs a { font-weight: 600; }
.breadcrumbs a:hover { color: var(--accent); }
.breadcrumbs li[aria-current] { color: var(--text); font-weight: 600; }

/* --- Cards --- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.tool-link-card {
  display: flex; flex-direction: column; gap: .6rem; padding: 1.1rem; height: 100%;
  transition: transform .15s var(--ease-out), box-shadow .15s var(--ease-out), border-color .15s var(--ease-out);
}
.tool-link-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.tool-link-card .tl-icon {
  width: 42px; height: 42px; border-radius: 10px; background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.tool-link-card h3 { font-size: 1.02rem; margin: 0; }
.tool-link-card p { font-size: .88rem; color: var(--text-muted); margin: 0; }
.tool-link-card .tl-cat { font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); }

.grid-tools { display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem; }
@media (min-width: 720px) { .grid-tools { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1160px) { .grid-tools { grid-template-columns: repeat(4, 1fr); } }
.grid-tools--3 { grid-template-columns: repeat(2,1fr); }
@media (min-width: 720px) { .grid-tools--3 { grid-template-columns: repeat(3, 1fr); } }

.cat-pill-row { display: flex; flex-wrap: wrap; gap: .6rem; }
.cat-pill {
  display: inline-flex; align-items: center; gap: .5rem; padding: .55rem 1rem; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); font-weight: 700; font-size: .88rem;
  transition: background .15s var(--ease-out), border-color .15s var(--ease-out);
}
.cat-pill:hover { border-color: var(--accent); color: var(--accent); }

/* --- Tool card (the star) --- */
.tool-hero { padding-block: 1.5rem 0; }
.tool-hero .tool-subtitle { color: var(--text-muted); font-size: 1.05rem; max-width: 62ch; margin-top: .5rem; }
.tool-card {
  margin-top: 1.5rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); padding: clamp(1.1rem, 3vw, 1.9rem);
}
.tool-card h2 { margin-top: 0; }
.field-row {
  display: grid; grid-template-columns: 1fr; gap: .6rem; align-items: end; margin-bottom: .8rem;
}
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 110px 110px auto; gap: .7rem; } }
.field-row.field-row--2 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .field-row.field-row--2 { grid-template-columns: 1fr 140px auto; } }
.field {
  display: flex; flex-direction: column; gap: .3rem;
}
.field label { font-size: .78rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: .03em; }
.field input, .field select {
  padding: .7rem .8rem; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg); font-size: 1rem; width: 100%; transition: border-color .15s var(--ease-out);
}
.field input:focus, .field select:focus { border-color: var(--accent); outline: none; }
.field-remove {
  width: 2.3rem; height: 2.3rem; border-radius: var(--radius-sm); background: var(--bad-soft); color: var(--bad);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.field-remove:hover { filter: brightness(0.95); }
.tool-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1rem; }
.tool-actions .btn:not(.btn-lg) { flex: 0 0 auto; }
.add-row-btn {
  display: inline-flex; align-items: center; gap: .4rem; font-weight: 700; font-size: .9rem; color: var(--accent);
  padding: .5rem 0;
}
.add-row-btn:hover { text-decoration: underline; }

.field-error { color: var(--bad); font-size: .82rem; margin-top: .25rem; display: none; }
.field-error.is-visible { display: block; }
.weight-total {
  font-size: .85rem; color: var(--text-muted); margin-top: .4rem;
}
.weight-total.is-bad { color: var(--bad); font-weight: 700; }
.weight-total.is-ok { color: var(--ok); font-weight: 700; }

.tool-result {
  margin-top: 1.4rem; padding: 1.3rem; border-radius: var(--radius); background: var(--accent-soft);
  text-align: center; display: none;
}
.tool-result.is-visible { display: block; }
.tool-result .tr-label { font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--accent); }
.tool-result .tr-value { font-size: clamp(2.4rem, 6vw, 3.4rem); font-weight: 800; margin-block: .3rem; letter-spacing: -0.02em; }
.tool-result .tr-tag {
  display: inline-flex; padding: .3rem .9rem; border-radius: 999px; font-weight: 700; font-size: .88rem; margin-top: .2rem;
}
.tr-tag--ok { background: var(--ok-soft); color: var(--ok); }
.tr-tag--warn { background: var(--warn-soft); color: var(--warn); }
.tr-tag--bad { background: var(--bad-soft); color: var(--bad); }
.tool-result .tr-note { font-size: .88rem; color: var(--text-muted); margin-top: .6rem; }
.tool-result .tr-extra { margin-top: .9rem; text-align: left; font-size: .9rem; color: var(--text-muted); }

.result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: .6rem; margin-top: 1rem; }
.share-row { display: flex; gap: .5rem; justify-content: center; margin-top: .8rem; }
.share-btn {
  width: 2.4rem; height: 2.4rem; border-radius: 50%; background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; transition: transform .15s var(--ease-out);
}
.share-btn:hover { transform: translateY(-2px); border-color: var(--accent); }

.privacy-badge {
  display: flex; align-items: flex-start; gap: .5rem; margin-top: 1rem; padding: .8rem 1rem;
  background: var(--surface-2); border-radius: var(--radius-sm); font-size: .85rem; color: var(--text-muted);
}
.tool-limits { font-size: .82rem; color: var(--text-muted); margin-top: .4rem; }

/* --- Ad slots --- */
.ad-slot {
  display: flex; align-items: center; justify-content: center; text-align: center;
  border: 1.5px dashed var(--border); border-radius: var(--radius-sm); color: var(--text-muted);
  font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  background: color-mix(in srgb, var(--surface-2) 60%, transparent); margin-block: 1.6rem;
}
.ad-slot--leaderboard { min-height: 90px; }
.ad-slot--incontent { min-height: 120px; }
.ad-slot--rail { min-height: 250px; width: 100%; position: sticky; top: 84px; }
.ad-slot--footer { min-height: 100px; }

/* --- FAQ --- */
.faq-list details {
  border-bottom: 1px solid var(--border); padding-block: .9rem;
}
.faq-list summary {
  cursor: pointer; font-weight: 700; font-size: 1rem; list-style: none; display: flex;
  align-items: center; justify-content: space-between; gap: 1rem;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; font-size: 1.4rem; font-weight: 400; color: var(--accent); flex-shrink: 0; transition: transform .15s var(--ease-out);
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list .faq-answer { margin-top: .6rem; color: var(--text-muted); }

/* --- Related tools --- */
.related-tools { margin-top: 2rem; }

/* --- Layout with rail --- */
.layout-with-rail { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 1280px) {
  .layout-with-rail { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }
  .layout-with-rail .rail { display: block; }
}
.layout-with-rail .rail { display: none; }

/* --- Footer --- */
.site-footer { border-top: 1px solid var(--border); margin-top: 3rem; padding-block: 2.5rem 1.6rem; background: var(--surface); }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-col h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); margin-bottom: .8rem; }
.footer-col ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: .55rem; }
.footer-col a { font-size: .92rem; color: var(--text); }
.footer-col a:hover { color: var(--accent); }
.footer-about p { color: var(--text-muted); font-size: .9rem; max-width: 34ch; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: .6rem 1.2rem; justify-content: space-between; align-items: center;
  margin-top: 2.2rem; padding-top: 1.4rem; border-top: 1px solid var(--border); font-size: .82rem; color: var(--text-muted);
}

/* --- Hero (home) --- */
.hero { padding-block: clamp(2.4rem, 7vw, 4.5rem) clamp(1.5rem, 4vw, 2.5rem); text-align: center; }
.hero h1 { max-width: 22ch; margin-inline: auto; }
.hero .lede { max-width: 52ch; margin: 1rem auto 0; color: var(--text-muted); font-size: 1.15rem; }
.hero-search { max-width: 560px; margin: 1.8rem auto 0; }
.hero-search .search-box { padding: .8rem 1.1rem; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.hero-stats { display: flex; justify-content: center; gap: 2.2rem; margin-top: 1.8rem; flex-wrap: wrap; }
.hero-stats strong { display: block; font-size: 1.6rem; font-weight: 800; }
.hero-stats span { font-size: .82rem; color: var(--text-muted); }

/* --- Benefits --- */
.benefits-grid { display: grid; gap: 1.2rem; grid-template-columns: 1fr; }
@media (min-width: 720px) { .benefits-grid { grid-template-columns: repeat(4, 1fr); } }
.benefit .b-icon {
  width: 44px; height: 44px; border-radius: 10px; background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center; margin-bottom: .8rem;
}
.benefit h3 { font-size: 1.05rem; }
.benefit p { color: var(--text-muted); font-size: .92rem; }

/* --- 404 --- */
.page-404 { text-align: center; padding-block: 4rem 2rem; }
.page-404 .code-404 { font-size: clamp(4rem, 14vw, 7rem); font-weight: 800; color: var(--accent); line-height: 1; }

/* --- Legal pages --- */
.legal-content { max-width: 72ch; }
.legal-content h2 { margin-top: 2rem; }
.legal-content p, .legal-content li { color: var(--text-muted); margin-bottom: .8rem; }
.legal-placeholder { background: var(--warn-soft); color: var(--warn); padding: .15rem .4rem; border-radius: 4px; font-weight: 700; font-size: .85em; }
.legal-updated { color: var(--text-muted); font-size: .9rem; margin-bottom: 1.5rem; }

/* --- Category page header --- */
.cat-header { padding-block: 1.5rem 0; }
.cat-header .eyebrow { margin-bottom: .5rem; }

/* --- Toast --- */
.toast {
  position: fixed; bottom: 1.4rem; left: 50%; transform: translate(-50%, 12px); background: var(--text);
  color: var(--bg); padding: .7rem 1.1rem; border-radius: 999px; font-size: .88rem; font-weight: 700;
  box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none; transition: opacity .2s var(--ease-out), transform .2s var(--ease-out);
  z-index: 90;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* Pomodoro-specific */
.pomo-ring { width: min(280px, 60vw); margin-inline: auto; }
.pomo-time { font-size: clamp(2.6rem, 8vw, 3.6rem); font-weight: 800; text-align: center; letter-spacing: -.02em; }
.pomo-mode-row { display: flex; justify-content: center; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.pomo-mode-btn {
  padding: .5rem 1rem; border-radius: 999px; background: var(--surface-2); font-weight: 700; font-size: .85rem;
}
.pomo-mode-btn[aria-pressed="true"] { background: var(--accent); color: var(--accent-contrast); }
.pomo-controls { display: flex; justify-content: center; gap: .7rem; margin-top: 1.2rem; flex-wrap: wrap; }
.pomo-sessions { text-align: center; margin-top: .8rem; color: var(--text-muted); font-size: .88rem; }

/* Word counter stats */
.wc-stats { display: grid; grid-template-columns: repeat(2,1fr); gap: .7rem; margin-top: 1rem; }
@media (min-width: 640px) { .wc-stats { grid-template-columns: repeat(4,1fr); } }
.wc-stat { background: var(--surface-2); border-radius: var(--radius-sm); padding: .8rem; text-align: center; }
.wc-stat strong { display: block; font-size: 1.5rem; font-weight: 800; }
.wc-stat span { font-size: .76rem; color: var(--text-muted); }
.wc-textarea {
  width: 100%; min-height: 220px; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  padding: .9rem; font-size: 1rem; background: var(--bg); resize: vertical; font-family: var(--sans);
}
.wc-textarea:focus { outline: none; border-color: var(--accent); }

/* APA generator */
.apa-tabs { display: flex; gap: .4rem; margin-bottom: 1rem; flex-wrap: wrap; }
.apa-tab { padding: .5rem 1rem; border-radius: 999px; background: var(--surface-2); font-weight: 700; font-size: .85rem; }
.apa-tab[aria-selected="true"] { background: var(--accent); color: var(--accent-contrast); }
.apa-output {
  background: var(--surface-2); border-radius: var(--radius-sm); padding: 1rem; font-size: .95rem;
  line-height: 1.7; text-indent: -1.6em; margin-left: 1.6em; margin-top: 1rem;
}
.apa-list-item {
  display: flex; align-items: flex-start; gap: .6rem; padding: .8rem; background: var(--surface-2);
  border-radius: var(--radius-sm); margin-bottom: .6rem;
}
.apa-list-item .apa-entry-text { flex: 1; font-size: .92rem; line-height: 1.6; text-indent: -1.4em; margin-left: 1.4em; }

/* Planner table */
.planner-table-wrap { overflow-x: auto; margin-top: 1.2rem; }
.planner-table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 480px; }
.planner-table th, .planner-table td { padding: .6rem .7rem; border-bottom: 1px solid var(--border); text-align: left; }
.planner-table th { color: var(--text-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .03em; }
.planner-diff { display: inline-flex; padding: .15rem .55rem; border-radius: 999px; font-size: .76rem; font-weight: 700; }

/* Attendance progress bar */
.progress-bar { height: 10px; border-radius: 999px; background: var(--surface-2); overflow: hidden; margin-top: .8rem; }
.progress-bar > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .3s var(--ease-out); }

/* Percentage tool tabs */
.pct-tabs { display: grid; grid-template-columns: repeat(2,1fr); gap: .5rem; margin-bottom: 1.2rem; }
@media (min-width: 640px) { .pct-tabs { grid-template-columns: repeat(4,1fr); } }
.pct-tab { padding: .6rem .5rem; border-radius: var(--radius-sm); background: var(--surface-2); font-weight: 700; font-size: .82rem; text-align: center; }
.pct-tab[aria-selected="true"] { background: var(--accent); color: var(--accent-contrast); }
.pct-panel:not([data-active]) { display: none; }

/* =============================================================
   6. Reduced motion — only intrusive stuff (there is basically none here)
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* =============================================================
   7. Print
   ============================================================= */
@media print {
  .site-header, .site-footer, .ad-slot, .related-tools, .search-modal-backdrop, .mobile-nav, .result-actions, .share-row { display: none !important; }
}