/* apaslingo: the site's styles (the shell, the pages) and the lessons' (from the preview's lingo.css). */
:root { --ink: #10201e; --ink2: #3c4b49; --dim: #5d6b69; --paper: #f6faf9; --card: #fff; --rule: #d8e4e2;
  --teal: #0f766e; --teal-dark: #0b5c56; --teal-soft: #e6f4f2; --coral: #c2410c; --good: #15803d; --bad: #b3261e; --warn: #a16207;
  --focus: rgba(15,118,110,.3); --radius: 14px; --header: rgba(255,255,255,.94); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --ink: #e6f1ef; --ink2: #c3d3d0; --dim: #9fb2ae; --paper: #0d1615; --card: #13201e; --rule: #24403c;
  --teal: #2dd4bf; --teal-dark: #5eead4; --teal-soft: #12302c; --coral: #fb923c; --good: #4ade80; --bad: #f87171; --warn: #facc15; --focus: rgba(45,212,191,.35); --header: rgba(19,32,30,.94); } }
:root[data-theme="dark"] { --ink: #e6f1ef; --ink2: #c3d3d0; --dim: #9fb2ae; --paper: #0d1615; --card: #13201e; --rule: #24403c; --teal: #2dd4bf; --teal-dark: #5eead4; --teal-soft: #12302c; --coral: #fb923c; --good: #4ade80; --bad: #f87171; --warn: #facc15; --focus: rgba(45,212,191,.35); --header: rgba(19,32,30,.94); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--teal-dark); }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: .5rem; top: .5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }
.narrow { max-width: 820px; }
h1 { font: 700 clamp(2rem, 4.6vw, 3rem)/1.1 Fraunces, Georgia, serif; margin: 1.6rem 0 .8rem; letter-spacing: -.015em; }
h2 { font: 700 1.5rem/1.25 Fraunces, Georgia, serif; margin: 2.2rem 0 .8rem; }
h3 { font-size: 1.1rem; margin: 1.2rem 0 .4rem; }
.lead { font-size: 1.12rem; color: var(--ink2); max-width: 40rem; }
.muted { color: var(--dim); font-size: .92rem; }
.eyebrow { color: var(--coral); font-weight: 600; font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; margin: 0 0 .4rem; }
.crumbs { color: var(--dim); font-size: .88rem; margin: 1.2rem 0 0; }

/* header and footer */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--header); backdrop-filter: saturate(160%) blur(8px); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; gap: 1.5rem; min-height: 64px; position: relative; }
.brand { font: 700 1.4rem Fraunces, Georgia, serif; color: var(--ink); text-decoration: none; white-space: nowrap; letter-spacing: -.01em; }
.brand b { color: var(--teal); }
.site-nav { display: flex; align-items: center; gap: 1.3rem; margin-left: auto; }
.site-nav a { color: var(--ink2); font-size: .95rem; font-weight: 500; text-decoration: none; }
.site-nav a:hover { color: var(--teal-dark); }
.site-nav a[aria-current="page"] { color: var(--teal); font-weight: 600; }
.site-nav .btn { padding: .45rem .9rem; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--rule); border-radius: 9px; padding: .4rem .8rem; font: inherit; color: var(--ink); cursor: pointer; }
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 64px; flex-direction: column; align-items: stretch; gap: 0; background: var(--card); border-bottom: 1px solid var(--rule); padding: .5rem clamp(1rem, 4vw, 2rem) 1rem; }
  .site-nav.open { display: flex; }
  .site-nav a { padding: .75rem 0; border-bottom: 1px solid var(--rule); }
  .site-nav .btn { margin-top: .6rem; }
}
.site-footer { border-top: 1px solid var(--rule); background: var(--card); color: var(--dim); font-size: .9rem; padding: 2.2rem 0 2rem; margin-top: 3.5rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1.2rem 3rem; justify-content: space-between; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .5rem 1.3rem; }
.site-footer a { color: var(--dim); }

/* buttons, fields, notices */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .4rem; font: 600 .95rem Inter, sans-serif; padding: .6rem 1.1rem; border-radius: 10px;
  border: 1px solid var(--rule); background: var(--card); color: var(--ink); text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--teal); }
.btn.primary { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn.primary:hover { background: var(--teal-dark); border-color: var(--teal-dark); }
:root[data-theme="dark"] .btn.primary { color: #062a26; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn.primary { color: #062a26; } }
.btn.big { font-size: 1.05rem; padding: .8rem 1.4rem; }
.btn.quiet { border-color: transparent; background: none; color: var(--teal-dark); padding-left: 0; padding-right: 0; }
.btn[disabled] { opacity: .6; cursor: default; }
.btn-row { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
button:focus-visible, a:focus-visible, .field:focus { outline: 3px solid var(--focus); outline-offset: 2px; }
.field { width: 100%; font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--rule); border-radius: 9px; padding: .6rem .7rem; }
.field:focus { border-color: var(--teal); }
.acct-field label, .form-row label { font-weight: 600; font-size: .92rem; display: block; margin-bottom: .3rem; }
.notice { border: 1px solid var(--rule); border-left: 4px solid var(--teal); background: var(--card); border-radius: 9px; padding: .7rem .9rem; margin: .8rem 0; font-size: .95rem; }
.notice.good { border-left-color: var(--good); } .notice.warn { border-left-color: var(--warn); } .notice.bad { border-left-color: var(--bad); }
.state { text-align: center; color: var(--dim); padding: 2rem 1rem; }

/* the sign-in dialog */
dialog.acct { border: 0; border-radius: 18px; padding: 0; width: min(420px, calc(100vw - 2rem)); box-shadow: 0 24px 64px rgba(13,17,23,.28); color: var(--ink); background: var(--card); }
dialog.acct::backdrop { background: rgba(13,17,23,.55); }
.acct-body { padding: 2rem 1.75rem 1.5rem; }
.acct-body h2 { margin: 0 0 .3rem; }
.acct-field { margin: 1rem 0; }
.acct-links { display: flex; flex-wrap: wrap; gap: .25rem 1.2rem; margin: 1rem 0 0; }
.acct-close { position: absolute; top: .6rem; right: .8rem; border: 0; background: none; font-size: 1.6rem; line-height: 1; color: var(--dim); cursor: pointer; padding: .2rem .5rem; }
.acct-or { display: flex; align-items: center; gap: .8rem; color: var(--dim); font-size: .85rem; margin: 1.1rem 0 .8rem; }
.acct-or::before, .acct-or::after { content: ''; flex: 1; height: 1px; background: var(--rule); }
.acct-google { width: 100%; }

/* the home page */
.hero { padding-top: 1.5rem; padding-bottom: 1rem; display: grid; gap: 2rem; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; }
@media (max-width: 860px) { .hero { grid-template-columns: minmax(0, 1fr); } }
.hero h1 { font-size: clamp(2.2rem, 5.4vw, 3.4rem); }
.listen { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.2rem 1.3rem; }
.listen h2 { font: 600 1.1rem Inter, sans-serif; margin: 0 0 .3rem; }
.listen p { margin: 0 0 .8rem; color: var(--dim); font-size: .95rem; }
.listen audio { width: 100%; }
.script { margin: .9rem 0 0; padding: 0; list-style: none; display: grid; gap: .45rem; font-size: .95rem; }
.script li { display: grid; grid-template-columns: 4.6rem minmax(0, 1fr); gap: .6rem; }
.script .who { color: var(--dim); font-size: .82rem; padding-top: .15rem; }
.script .es { font-weight: 600; color: var(--teal-dark); }
.steps { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); margin: 0; padding: 0; list-style: none; }
.steps li { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.1rem; }
.steps strong { display: block; margin-bottom: .25rem; }
.steps span { color: var(--dim); font-size: .95rem; }

/* languages and courses */
.langs { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr)); list-style: none; margin: 0; padding: 0; }
.lang-card { display: grid; gap: .4rem; background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.3rem 1.4rem; text-decoration: none; color: var(--ink); }
a.lang-card:hover { border-color: var(--teal); }
.lang-card .name { font: 700 1.5rem Fraunces, Georgia, serif; }
.lang-card .hello { font: 600 1.05rem Fraunces, Georgia, serif; color: var(--teal-dark); }
.soon { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.soon li { background: var(--teal-soft); color: var(--teal-dark); border-radius: 999px; padding: .25rem .8rem; font-size: .9rem; font-weight: 500; }
.courses { display: grid; gap: 1rem; list-style: none; margin: 0; padding: 0; }
.course { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.2rem 1.4rem; }
.course-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem 1rem; }
.course-head h3 { margin: 0; font: 700 1.25rem Fraunces, Georgia, serif; }
.course-head .n { font-weight: 700; color: var(--coral); font-size: .85rem; }
.tag { font-size: .78rem; font-weight: 600; border-radius: 999px; padding: .1rem .6rem; border: 1px solid currentColor; }
.tag.free { color: var(--good); } .tag.soon { color: var(--dim); } .tag.open { color: var(--teal); }
.course p { margin: .4rem 0; color: var(--ink2); }
.course ul.what { margin: .4rem 0 0; padding-left: 1.2rem; color: var(--ink2); font-size: .95rem; }
.index { list-style: none; margin: .8rem 0 0; padding: 0; display: grid; gap: .25rem; }
.index a { display: flex; gap: .7rem; align-items: flex-start; padding: .65rem .6rem; border-radius: 10px; color: var(--ink); text-decoration: none; }
.index a:hover { background: var(--teal-soft); }
.num { flex: none; width: 1.8rem; height: 1.8rem; border-radius: 50%; display: grid; place-items: center; background: var(--teal-soft); color: var(--teal-dark); font-weight: 700; font-size: .85rem; margin-top: .1rem; }
.index .done .num { background: var(--teal); color: #fff; }
.review { font-size: .85rem; color: var(--warn); }
.prices { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
.price-card { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.2rem 1.3rem; }
.price-card .amount { font: 700 2rem Fraunces, Georgia, serif; }
.price-card .amount small { font: 500 .95rem Inter, sans-serif; color: var(--dim); margin-left: .3rem; }
.legal h2 { font-size: 1.2rem; margin-top: 1.8rem; } .legal li { margin: .2rem 0; }
.card { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.3rem 1.4rem; margin: 1.2rem 0; }
.card h2 { margin-top: 0; font-size: 1.25rem; }
.grid2 { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }

/* a lesson page */
.layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); min-width: 0; gap: 2rem; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: minmax(0, 1fr); gap: 0; } .lessons { position: static !important; order: 2; margin-bottom: 2rem; } }
.lessons { position: sticky; top: 80px; margin-top: 1.4rem; background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem; }
.lessons .course-name { font-weight: 700; margin: 0; } .lessons .course-name a { color: var(--ink); text-decoration: none; }
.lessons .unit { color: var(--dim); font-size: .85rem; margin: .2rem 0 .6rem; }
.lessons ol { list-style: none; margin: 0; padding: 0; display: grid; gap: .25rem; }
.lessons a { display: flex; gap: .6rem; align-items: center; padding: .4rem .5rem; border-radius: 9px; color: var(--ink); text-decoration: none; font-size: .93rem; }
.lessons a:hover { background: var(--teal-soft); }
.lessons li[aria-current="page"] a { background: var(--teal); color: #fff; font-weight: 600; }
.lessons .num { margin: 0; width: 1.7rem; height: 1.7rem; }
.lessons li[aria-current="page"] .num { background: #fff; color: var(--teal); }
.prevnext { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin: 2.5rem 0 1rem; padding-top: 1.2rem; border-top: 1px solid var(--rule); }
.lesson { max-width: 760px; }
.lesson > p:first-of-type { font-size: 1.08rem; color: var(--ink2); }
.lesson table { border-collapse: collapse; width: 100%; background: var(--card); border-radius: 10px; overflow: hidden; font-size: .95rem; }
.lesson th, .lesson td { border-bottom: 1px solid var(--rule); padding: .45rem .6rem; text-align: left; }
.lesson th { background: var(--teal-soft); color: var(--teal-dark); font-size: .85rem; }
/* the players */
.lesson .apc-sequence-player { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1rem 0 1.4rem; box-shadow: 0 2px 10px rgba(16,32,30,.05); }
.lesson .apc-sequence-title { font-weight: 700; color: var(--teal-dark); margin-bottom: .5rem; }
.lesson .apc-sequence-frame { min-height: 9rem; display: flex; flex-direction: column; justify-content: center; }
.lesson .apc-sequence-frame h2 { font: 700 clamp(3rem, 9vw, 5rem)/1 Fraunces, Georgia, serif; color: var(--teal); margin: .2rem 0 .4rem; letter-spacing: .02em; }
.lesson .apc-sequence-frame h3 { font: 700 clamp(1.6rem, 5vw, 2.4rem)/1.15 Fraunces, Georgia, serif; color: var(--teal-dark); margin: .2rem 0 .4rem; }
.lesson .apc-sequence-frame p { font-size: 1.12rem; margin: .3rem 0; }
.lesson .apc-sequence-controls { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-top: .8rem; }
.lesson .apc-sequence-controls button, .lesson .apc-question-check, .lesson .apc-ordering button { font: 600 .95rem Inter, sans-serif; border-radius: 9px; border: 1px solid var(--rule); background: var(--card); color: var(--ink); padding: .45rem .9rem; cursor: pointer; }
.lesson .apc-sequence-controls button:nth-of-type(2) { background: var(--teal); border-color: var(--teal); color: #fff; }
.lesson .apc-sequence-controls button:hover { border-color: var(--teal); }
/* one-frame players ("listen" boxes): Play only */
.lesson .apc-sequence-controls:has(> input[type="range"][max="0"]) > :is(button:nth-of-type(1), button:nth-of-type(3), button:nth-of-type(4), input[type="range"], .apc-sequence-position) { display: none; }
.lesson .apc-sequence-controls:has(> input[type="range"][max="0"]) > button:nth-of-type(2)::before { content: "\25B6\00A0"; }
.lesson .apc-sequence-player:has(.apc-sequence-controls > input[type="range"][max="0"]) { padding: .7rem 1rem; }
.lesson .apc-sequence-player:has(.apc-sequence-controls > input[type="range"][max="0"]) .apc-sequence-frame { min-height: 0; }
/* questions and ordering */
.lesson .apc-question, .apc-ordering { background: var(--card); border: 1px solid var(--rule); border-left: 4px solid var(--teal); border-radius: var(--radius); padding: 1rem 1.2rem; margin: 1rem 0; }
.lesson .apc-question label { display: block; padding: .35rem .5rem; border-radius: 8px; cursor: pointer; font-size: 1.05rem; }
.lesson .apc-question label:hover { background: var(--teal-soft); }
.lesson .apc-question-check { background: var(--teal) !important; color: #fff !important; border-color: var(--teal) !important; margin-top: .5rem; }

/* the frame's own audio is played by the player's buttons: not shown twice */
.lesson .apc-sequence-frame audio, .lesson .apc-sequence-frame .apc-audio { display: none; }
.lesson .apc-sequence-player { color: var(--ink); }
.lesson .apc-sequence-frame p { color: var(--ink2); }
.lesson .apc-sequence-title { color: var(--teal-dark); font-size: 1rem; }
.lesson .apc-sequence-controls input[type="range"] { accent-color: var(--teal); }
.lesson .apc-sequence-position { color: var(--dim); }

/* nothing wider than the screen: a wide table scrolls inside itself */
main, .lesson { min-width: 0; }
.lesson table { display: block; overflow-x: auto; max-width: 100%; }
.lesson .apc-sequence-controls input[type="range"] { min-width: 0; flex: 1 1 6rem; }
@media (max-width: 520px) {
  .lesson .apc-sequence-player { padding: .8rem .9rem; }
  .lesson .apc-sequence-controls button { padding: .4rem .65rem; font-size: .88rem; }
}

/* notes and typed answers */
.lesson .apc-callout { background: var(--teal-soft); border: 0; border-radius: var(--radius); padding: .9rem 1.1rem; margin: 1.4rem 0; }
.lesson .apc-callout-label, .lesson .apc-callout-title { display: none; }
.lesson .apc-callout p { margin: .2rem 0; color: var(--ink); }
.lesson .apc-question-answer-input, .lesson .apc-question input[type="text"], .lesson .apc-question input[type="number"] {
  font: inherit; padding: .45rem .6rem; border: 1px solid var(--rule); border-radius: 9px; background: var(--paper); color: var(--ink); width: 9rem; margin-right: .5rem; }
.lesson .apc-question summary { cursor: pointer; color: var(--teal-dark); font-weight: 500; }

/* a password box with its eye (account.js) */
.pw-wrap { position: relative; }
.pw-wrap .field { padding-right: 2.9rem; }
.pw-eye { position: absolute; right: .3rem; top: 50%; transform: translateY(-50%); display: grid; place-items: center;
  width: 2.4rem; height: 2.4rem; padding: 0; border: 0; border-radius: 8px; background: transparent; color: var(--dim); cursor: pointer; }
.pw-eye:hover { color: var(--ink); background: rgba(127, 127, 127, .14); }
.pw-eye:focus-visible { outline: 3px solid var(--focus); outline-offset: 0; }
/* the account page's subscriptions */
ul.subs { list-style: none; padding: 0; margin: 1rem 0 0; }
ul.subs li { padding: .7rem 0; border-top: 1px solid var(--rule); }