/* ============================================================
   Connecta landing: the site stylesheet both layouts load (after
   tokens.css and base.css). The shared components every page uses:
   the one button, the one eyebrow, the nav and the footer.
   ============================================================ */

/* The one button. Mirrors the platform Btn (design-language.md "Touch
   targets"; PM D2, D3): ink primary, 12px corners, 44px tall, 52px for the
   main action (.btn--lg), 36px only above 760px (.btn--sm). Variants:
   --white (the second action on a light ground), --lime (the floating CTA,
   one per cluster), --on-ink (the second action on an ink ground). There is
   no coral button. The look sits on a doubled class so a container's
   `.x a` rule cannot repaint it. */
.btn.btn {
  --btn-bg: var(--action-primary-bg);
  --btn-fg: var(--action-primary-fg);
  --btn-bd: transparent;
  --btn-hover: var(--action-primary-hover);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  box-sizing: border-box;
  padding: var(--s-1) 18px;
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-md);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font: var(--w-semi) var(--t-body-sm) / 1.1 var(--font-sans);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard);
}
.btn.btn:hover { background: var(--btn-hover); color: var(--btn-fg); }
.btn.btn:active { transform: scale(0.98); }
.btn.btn:disabled, .btn.btn[aria-disabled="true"] { border-color: transparent; background: var(--neutral-100); color: var(--neutral-400); cursor: not-allowed; transform: none; }
.btn.btn--lg { padding-inline: var(--s-5); font-size: var(--t-body); }
.btn.btn--block { width: 100%; }
.btn.btn--white { --btn-bg: var(--bg-card); --btn-fg: var(--connecta-ink); --btn-bd: var(--border-1); --btn-hover: var(--neutral-100); }
.btn.btn--lime { --btn-bg: var(--action-floating-bg); --btn-fg: var(--action-floating-fg); --btn-hover: var(--action-floating-hover); }
.btn.btn--on-ink { --btn-bg: transparent; --btn-fg: var(--fg-on-ink); --btn-bd: color-mix(in srgb, var(--fg-on-ink) 30%, transparent); --btn-hover: color-mix(in srgb, var(--fg-on-ink) 10%, transparent); }
/* The height (single class, so a container that floors its buttons wins). */
.btn { min-height: 44px; }
.btn--lg { min-height: 52px; }
.btn--sm { min-height: 36px; }
@media (max-width: 760px) { .btn--sm { min-height: 44px; } }
@media (prefers-reduced-motion: reduce) { .btn.btn { transition: none; } }

/* The agent tag (AgentTag.astro): the "nn" mark in the agent's colourway and
   "<name> · AI" as a tiny system tag (design-language.md "Casing": uppercase
   only for eyebrows, system tags and role badges). */
/* Phone frame for real app screens (home GoodTalk, students and parents). The
   screens are 720x1558 (a current iPhone, 19.5:9): never crop or stretch
   them, the frame takes the image's own shape. Width: --pw. */
.pr-phone { position: relative; flex: none; align-self: center; width: var(--pw, 280px); background: var(--connecta-ink); border-radius: 46px; padding: 10px; box-shadow: 0 24px 40px -18px rgba(15,26,36,.35), 0 2px 6px rgba(15,26,36,.12); }
.pr-phone img { display: block; width: 100%; height: auto; aspect-ratio: 720 / 1558; object-fit: contain; border-radius: 36px; background: var(--pattern-paper); }

.agent-tag { display: inline-flex; align-items: center; gap: var(--s-2); font: var(--t-eyebrow); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-2); }
.on-ink .agent-tag { color: var(--fg-on-ink); }
.agent-mark { flex: none; width: 26px; height: 26px; border-radius: var(--r-sm); display: inline-grid; place-items: center; }
.agent-mark img { width: 45%; height: auto; display: block; }
.agent-mark--socratic { background: var(--connecta-ink); }
.on-ink .agent-mark--socratic { box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--fg-on-ink) 30%, transparent); }
.agent-mark--goodtalk { background: var(--connecta-plum); }

/* The one eyebrow (design-language.md "Casing", PM D1): uppercase, tracked,
   semibold, 12px. Tones for the ground it sits on. */
.eyebrow { display: inline-block; font: var(--t-eyebrow); letter-spacing: var(--tracking-caps); text-transform: uppercase; color: var(--fg-2); }
.eyebrow--ink { color: var(--fg-1); }
.eyebrow--on-ink { color: var(--fg-on-ink); }
.eyebrow--inherit { color: inherit; }


  /* Clip decorative bleed (hero mockup negative offsets, floating cards) so it
     never causes horizontal scroll on narrow phones. `clip` (not `hidden`)
     keeps the sticky nav working. */
  .cl-page { overflow-x: clip; }

  .cl-navlink { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; color: var(--fg-2); font-weight: 600; font-size: var(--t-caption); padding: 10px 11px; border-radius: var(--r-md); transition: background var(--dur-fast) var(--ease-standard); white-space: nowrap; }
  .cl-navlink:hover { background: var(--neutral-100); }
  .cl-platform-btn:hover { background: var(--neutral-100); }
  .cl-platform-btn > span { white-space: nowrap; }
  .cl-platform.is-open .cl-platform-menu { opacity: 1 !important; visibility: visible !important; transform: translateY(0) !important; }
  .cl-platform.is-open .cl-platform-chev { transform: rotate(180deg); }
  .cl-platform.is-open .cl-platform-btn { background: var(--neutral-100); }
  .cl-pl-item { display: flex; gap: 12px; align-items: flex-start; padding: 12px; border-radius: var(--r-md); text-decoration: none; color: var(--fg-1); transition: background var(--dur-fast) var(--ease-standard); }
  .cl-pl-item:hover { background: var(--neutral-50); }
  .cl-pl-ic { flex-shrink: 0; width: 36px; height: 36px; border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; }
  .cl-pl-t { display: block; font-weight: 600; font-size: var(--t-caption); line-height: 1.3; }
  .cl-pl-d { display: block; font-size: var(--t-micro); color: var(--fg-2); line-height: 1.35; margin-top: 2px; }

  .cl-lang.is-open .cl-lang-menu { opacity: 1 !important; visibility: visible !important; transform: translateY(0) !important; }
  .cl-lang.is-open .cl-lang-chev { transform: rotate(180deg); }
  .cl-lang.is-open .cl-lang-btn { border-color: var(--border-2); background: var(--neutral-50); }
  .cl-lang-row { display: flex; align-items: center; min-height: 44px; justify-content: space-between; gap: 10px; width: 100%; text-align: left; cursor: pointer; border: none; font-family: var(--font-sans); padding: 9px 10px; border-radius: var(--r-sm); background: transparent; transition: background var(--dur-fast) var(--ease-standard); }
  .cl-lang-row:hover { background: var(--neutral-50); }
  .cl-lang-row.is-active { background: var(--neutral-100); }
  .cl-lr-label { font-size: var(--t-caption); font-weight: 500; color: var(--fg-1); }
  .cl-lang-row.is-active .cl-lr-label { font-weight: 700; }
  .cl-lr-right { font-size: var(--t-micro); font-weight: 700; letter-spacing: 0.06em; color: var(--fg-2); }
  .cl-lang-row.is-active .cl-lr-right { color: var(--connecta-ink); }

  .cl-mm-link { padding: 13px 12px; border-radius: var(--r-md); text-decoration: none; color: var(--fg-1); font-weight: 600; font-size: var(--t-body); }
  .cl-mm-link:hover { background: var(--neutral-50); }
  .cl-mobile-menu.is-open { margin: 8px auto 0 !important; max-height: min(760px, calc(100vh - 110px)) !important; overflow-y: auto !important; opacity: 1 !important; border-color: var(--border-1) !important; box-shadow: var(--shadow-2); }

  .cl-soc { width: 44px; height: 44px; border-radius: var(--r-sm); border: 1px solid var(--border-1); display: flex; align-items: center; justify-content: center; color: var(--fg-2); text-decoration: none; transition: background var(--dur-fast) var(--ease-standard); }
  .cl-soc:hover { background: var(--neutral-50); }
  .cl-flink { font-size: var(--t-caption); color: var(--fg-2); text-decoration: none; transition: color var(--dur-fast) var(--ease-standard); }
  .cl-flink:hover { color: var(--connecta-ink); }

  /* contact form */
  .cl-contact-form { background: #fff; border: 1px solid var(--border-1); border-radius: var(--r-xl); box-shadow: var(--shadow-2); padding: 28px; display: flex; flex-direction: column; gap: 16px; }
  .cl-field { display: flex; flex-direction: column; gap: 7px; }
  .cl-field label { font-size: var(--t-caption); font-weight: 600; color: var(--fg-2); }
  .cl-field input, .cl-field textarea { font-family: var(--font-sans); font-size: var(--t-body-sm); color: var(--fg-1); background: var(--neutral-50); border: 1px solid var(--border-2); border-radius: var(--r-md); padding: 12px 14px; width: 100%; transition: border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard); }
  .cl-field textarea { resize: vertical; min-height: 96px; line-height: 1.5; }
  .cl-field input:focus, .cl-field textarea:focus { outline: none; background: #fff; border-color: var(--connecta-ink); box-shadow: 0 0 0 3px rgba(15,26,36,.08); }
  .cl-contact-send { margin-top: 4px; }

  @media (max-width: 1179px) {
    .cl-desktop-nav { flex-wrap: nowrap; display: none !important; }
    .cl-burger { display: inline-flex !important; }
  }
  @media (max-width: 760px) {
    header { padding: 10px 12px 0 !important; }
    header > nav { padding: 0 10px 0 16px !important; height: 64px !important; gap: 12px !important; }
    header > nav > a:first-child img:last-child { height: 18px !important; }
    .cl-lang-btn { padding: 8px 10px !important; }
  }
  /* Very narrow phones: the nav is nowrap, so the logo must be the part that
     gives way - the language button and burger stay full size and reachable. */
  @media (max-width: 400px) {
    header { padding: 8px 10px 0 !important; }
    header > nav { padding: 0 8px 0 12px !important; height: 60px !important; gap: 8px !important; }
    header > nav > a:first-child { min-width: 0 !important; overflow: hidden !important; }
    header > nav > a:first-child img:last-child { height: 16px !important; max-width: 100% !important; }
    .cl-lang-btn { padding: 7px 9px !important; font-size: var(--t-caption) !important; }
    .cl-lang, .cl-burger { flex-shrink: 0 !important; }
  }

  .cl-bento { display: grid; grid-template-columns: repeat(6, 1fr); grid-auto-rows: minmax(232px, auto); grid-auto-flow: row dense; gap: 14px; margin-top: 36px; }
  .cl-bt-intro { grid-column: span 2; grid-row: span 2; }
  .cl-bt-wide4 { grid-column: span 4; }
  .cl-bt-2 { grid-column: span 2; }
  .cl-bcard { position: relative; overflow: hidden; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--border-1); border-radius: var(--r-lg); transition: box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard); text-decoration: none; color: inherit; }
  .cl-bcard:hover { box-shadow: var(--shadow-2); border-color: var(--border-2); transform: translateY(-3px); }
  .cl-bcontent { position: relative; z-index: 2; flex: 1 1 0%; padding: 22px 24px; display: flex; flex-direction: column; }
  .cl-bicon { width: 44px; height: 44px; border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
  .cl-bcta { margin-top: auto; padding-top: 16px; display: inline-flex; align-items: center; gap: 7px; font-size: var(--t-body-sm); font-weight: 600; color: var(--action-ghost-fg); }
  .cl-bcta svg { transition: transform var(--dur-base) var(--ease-standard); }
  .cl-bcard:hover .cl-bcta svg { transform: translateX(3px); }
  @media (prefers-reduced-motion: reduce) { .cl-bcard:hover { transform: none; } }
  .cl-bento .cl-bcontent h3 { font-size: var(--t-body-lg); }
  .cl-bento .cl-bt-wide4 .cl-bcontent h3 { font-size: var(--mk-h3); }
  .cl-bt-intro h3 { font-size: var(--mk-h3); }
  .cl-bento .cl-bcontent p { font-size: var(--t-body-sm); line-height: 1.5; max-width: none; }
  .cl-bento .cl-bt-wide4 .cl-bcontent p { font-size: var(--t-body); max-width: 460px; }
  @media (max-width: 760px) {
    .cl-bento .cl-bcontent h3 { font-size: var(--t-body); }
    .cl-bento .cl-bcontent p, .cl-bento .cl-bt-wide4 .cl-bcontent p { font-size: var(--t-caption); }
    .cl-bcta { font-size: var(--t-caption); }
  }
  @media (max-width: 1179px) {
    .cl-bento { grid-template-columns: repeat(2, 1fr); grid-auto-rows: minmax(210px, auto); }
    .cl-bt-intro { grid-column: span 2; grid-row: span 1; }
    .cl-bt-wide4, .cl-bt-2 { grid-column: span 1; }
  }
  @media (max-width: 760px) {
    .cl-bento { grid-template-columns: 1fr; grid-auto-rows: auto; }
    .cl-bt-intro, .cl-bt-wide4, .cl-bt-2 { grid-column: span 1; }
    .cl-bcard { min-height: 196px; }
  }

  .cl-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
  @media (max-width: 1179px) { .cl-2col { grid-template-columns: 1fr !important; gap: 40px !important; } }

  .cl-foot { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; }
  @media (max-width: 760px) { .cl-foot { grid-template-columns: 1fr 1fr; gap: 28px; } }
  @media (max-width: 400px) { .cl-foot { grid-template-columns: 1fr; gap: 24px; } }

  /* ---- teacher tools grid (/learning-centers) and the FAQ tabs (/faqs) ---- */

  .cl-toolgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
  @media (max-width: 1179px) { .cl-toolgrid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 760px) { .cl-toolgrid { grid-template-columns: 1fr; } }
  .cl-tool { background: #fff; border: 1px solid var(--border-1); border-radius: var(--r-lg); padding: 18px; display: flex; flex-direction: column; gap: 11px; }
  .cl-toolicon { width: 44px; height: 44px; border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
  .cl-tool-h { font-size: var(--t-body); font-weight: 600; margin: 0; letter-spacing: -0.01em; }
  .cl-tool-p { font-size: var(--t-caption); color: var(--fg-2); line-height: 1.45; margin: 0; }

  .cl-tabin { position: absolute; width: 1px; height: 1px; opacity: 0; overflow: hidden; }
  .cl-tab { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: var(--r-pill); border: 1px solid var(--border-1); background: #fff; color: var(--fg-2); font-weight: 600; font-size: var(--t-caption); cursor: pointer; user-select: none; transition: border-color var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard), background var(--dur-base) var(--ease-standard); }
  .cl-tab:hover { border-color: var(--border-2); color: var(--fg-1); }
  .cl-dot { width: 8px; height: 8px; border-radius: var(--r-pill); flex-shrink: 0; }
  /* FAQ (v2) */
  .cl-ftablist { display: flex; gap: 8px; flex-wrap: wrap; margin: 28px 0 8px; }
  .cl-faqwrap { max-width: 860px; }
  .cl-faq-cat { font-size: var(--t-micro); letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; color: var(--fg-2); margin: 26px 0 10px; }
  details.cl-faq { border: 1px solid var(--border-1); border-radius: var(--r-md); background: #fff; margin-top: 8px; }
  details.cl-faq > summary { cursor: pointer; padding: 15px 18px; font-weight: 600; font-size: var(--t-body-sm); color: var(--fg-1); list-style: none; display: flex; align-items: center; gap: 14px; }
  details.cl-faq > summary::-webkit-details-marker { display: none; }
  details.cl-faq > summary::after { content: ""; width: 9px; height: 9px; border-right: 2px solid var(--fg-3); border-bottom: 2px solid var(--fg-3); transform: rotate(45deg); transition: transform var(--dur-base) var(--ease-standard); margin-left: auto; flex-shrink: 0; }
  details.cl-faq[open] > summary::after { transform: rotate(-135deg); }
  details.cl-faq .cl-faq-a { padding: 0 18px 16px; color: var(--fg-2); font-size: var(--t-caption); line-height: 1.6; }
  .cl-fpanel { display: none; }
  #cl-ftab-students:checked ~ .cl-fpanels .cl-fpanel-students,
  #cl-ftab-teachers:checked ~ .cl-fpanels .cl-fpanel-teachers,
  #cl-ftab-parents:checked ~ .cl-fpanels .cl-fpanel-parents { display: block; }
  #cl-ftab-students:checked ~ .cl-ftablist label[for="cl-ftab-students"],
  #cl-ftab-teachers:checked ~ .cl-ftablist label[for="cl-ftab-teachers"],
  #cl-ftab-parents:checked ~ .cl-ftablist label[for="cl-ftab-parents"] { background: var(--connecta-ink); color: #fff; border-color: var(--connecta-ink); }
  #cl-ftab-students:focus-visible ~ .cl-ftablist label[for="cl-ftab-students"],
  #cl-ftab-teachers:focus-visible ~ .cl-ftablist label[for="cl-ftab-teachers"],
  #cl-ftab-parents:focus-visible ~ .cl-ftablist label[for="cl-ftab-parents"] { outline: 2px solid var(--mk-focus); outline-offset: 2px; }
  /* Anchor targets land below the sticky nav, on every page. */
  html { scroll-padding-top: 96px; }