/* ==========================================================================
   ExpressMe AAC — shared styles
   Visual language derived from the logo: cream base, bold navy outlines,
   rounded "sticker" shapes with a hard navy offset shadow, and the
   Fitzgerald Key colour system for word categories.
   ========================================================================== */

/* ---- Tokens ------------------------------------------------------------- */
:root {
  /* Brand (from the logo) */
  --navy:        #16294d;
  --navy-soft:   #2a3f66;
  --cream:       #f7f0df;
  --cream-card:  #fcf7ec;
  --cream-deep:  #efe5cd;
  --coral:       #f0553a;
  --peach:       #f3c892;
  --lavender:    #b196e8;
  --purple:      #5b3fd1;
  --purple-ink:  #4a31b3;

  /* Fitzgerald Key — word categories */
  --k-noun:  #f4a63b; /* orange  */
  --k-verb:  #6bbd6e; /* green   */
  --k-pron:  #f4d24a; /* yellow  */
  --k-adj:   #5b9bd5; /* blue    */
  --k-prep:  #ef9bc3; /* pink    */
  --k-quest: #9b7ede; /* purple  */
  --k-neg:   #e35948; /* red     */

  /* Surfaces / lines */
  --ink:        var(--navy);
  --stroke-w:   2.5px;
  --radius:     18px;
  --radius-sm:  12px;
  --radius-lg:  28px;
  --shadow:     4px 4px 0 var(--navy);
  --shadow-sm:  3px 3px 0 var(--navy);
  --shadow-lg:  7px 7px 0 var(--navy);

  --maxw: 1120px;

  --font-display: "Baloo 2", system-ui, sans-serif;
  --font-body: "Nunito", system-ui, sans-serif;
}

/* ---- Reset / base ------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  /* subtle chitenge-inspired line motif, very low contrast, low-sensory */
  background-image:
    radial-gradient(circle at 1px 1px, rgba(22,41,77,0.05) 1px, transparent 0);
  background-size: 26px 26px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  margin: 0 0 .5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

a { color: var(--purple-ink); text-decoration-thickness: 2px; text-underline-offset: 3px; }

img { max-width: 100%; display: block; }

:focus-visible {
  outline: 3px solid var(--purple);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); }

.section { padding-block: clamp(3.5rem, 8vw, 6rem); }

.eyebrow {
  font-family: var(--font-body);
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--purple-ink);
  margin: 0 0 .9rem;
  display: inline-block;
}

.lead { font-size: clamp(1.05rem, 2.2vw, 1.28rem); max-width: 56ch; }

.skip-link {
  position: absolute; left: 1rem; top: -100px;
  background: var(--navy); color: #fff; padding: .6rem 1rem;
  border-radius: var(--radius-sm); z-index: 200; transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  padding: .72rem 1.4rem;
  border-radius: 999px;
  border: var(--stroke-w) solid var(--navy);
  background: var(--cream-card);
  color: var(--navy);
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { transform: translate(-2px,-2px); box-shadow: var(--shadow); }
.btn:active { transform: translate(2px,2px); box-shadow: 0 0 0 var(--navy); }
.btn--primary { background: var(--purple); color: #fff; }
.btn--coral   { background: var(--coral); color: #fff; }
.btn--ghost   { box-shadow: none; background: transparent; }
.btn--ghost:hover { background: var(--cream-card); box-shadow: var(--shadow-sm); }

/* ---- Header / nav ------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,240,223,0.86);
  backdrop-filter: blur(8px);
  border-bottom: var(--stroke-w) solid var(--navy);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: .7rem;
}
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--navy); }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand__name { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em; }
.brand__name span { color: var(--purple-ink); }

.nav__links { display: flex; align-items: center; gap: 1.6rem; }
.nav__links a {
  font-family: var(--font-display); font-weight: 500; color: var(--navy);
  text-decoration: none; font-size: 1rem;
}
.nav__links a:hover { color: var(--purple-ink); }

.nav__toggle {
  display: none; background: var(--cream-card); border: var(--stroke-w) solid var(--navy);
  border-radius: var(--radius-sm); width: 44px; height: 44px; cursor: pointer;
  box-shadow: var(--shadow-sm); padding: 0;
}
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; display: block; width: 20px; height: 2.5px; background: var(--navy);
  margin-inline: auto; border-radius: 2px; transition: transform .2s;
}
.nav__toggle span::before { transform: translateY(-6px); }
.nav__toggle span::after  { transform: translateY(3.5px); }

@media (max-width: 820px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--cream-card);
    border-bottom: var(--stroke-w) solid var(--navy);
    padding: .5rem clamp(1rem,4vw,2.5rem) 1.2rem;
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: .7rem 0; border-bottom: 1px solid var(--cream-deep); }
  .nav__links .btn { margin-top: .8rem; justify-content: center; }
}

/* ---- Speech-bubble shape helper ---------------------------------------- */
.bubble {
  background: var(--cream-card);
  border: var(--stroke-w) solid var(--navy);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

/* ---- Hero --------------------------------------------------------------- */
.hero { padding-top: clamp(2.5rem, 6vw, 4rem); padding-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.hero__grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.hero h1 { font-size: clamp(2.3rem, 6vw, 3.9rem); font-weight: 800; }
.hero h1 .u {
  position: relative; white-space: nowrap;
}
.hero h1 .u::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -.06em; height: .16em;
  background: var(--purple); border-radius: 999px;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.4rem; }
.hero__note { margin-top: 1.1rem; font-size: .92rem; color: var(--navy-soft); font-weight: 600; }

/* ---- Sentence builder (signature element) ------------------------------ */
.builder { padding: 1.1rem; }
.builder__label {
  font-family: var(--font-display); font-weight: 700; font-size: .95rem;
  color: var(--navy-soft); margin-bottom: .6rem; display: flex; align-items: center; gap: .5rem;
}
.strip {
  min-height: 96px;
  background: var(--cream);
  border: 2.5px dashed var(--navy-soft);
  border-radius: var(--radius);
  padding: .7rem;
  display: flex; flex-wrap: wrap; gap: .5rem; align-content: flex-start;
  margin-bottom: .9rem;
}
.strip__hint {
  color: var(--navy-soft); font-weight: 600; align-self: center; margin: auto;
  font-family: var(--font-display); font-size: .98rem;
}
.strip .tile { animation: pop .18s ease; }

.tile {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; min-width: 74px; padding: .5rem .7rem;
  border: var(--stroke-w) solid var(--navy); border-radius: var(--radius-sm);
  font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--navy);
  cursor: pointer; box-shadow: var(--shadow-sm);
  transition: transform .1s ease, box-shadow .1s ease;
  user-select: none;
}
.tile:hover { transform: translate(-2px,-2px); box-shadow: var(--shadow); }
.tile:active { transform: translate(1px,1px); box-shadow: var(--shadow-sm); }
.tile svg { width: 30px; height: 30px; }
.tile__word { line-height: 1; }

.tile[data-cat="noun"]  { background: var(--k-noun); }
.tile[data-cat="verb"]  { background: var(--k-verb); }
.tile[data-cat="pron"]  { background: var(--k-pron); }
.tile[data-cat="adj"]   { background: var(--k-adj); }
.tile[data-cat="prep"]  { background: var(--k-prep); }
.tile[data-cat="quest"] { background: var(--k-quest); }
.tile[data-cat="neg"]   { background: var(--k-neg); color: #fff; }
.tile[data-cat="neg"] svg { stroke: #fff; }

.builder__palette { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.builder__actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.builder__actions .btn { padding: .55rem 1.1rem; font-size: .98rem; }

@keyframes pop { from { transform: scale(.6); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.speaking { animation: wiggle .5s ease infinite; }
@keyframes wiggle { 0%,100%{ transform: rotate(0); } 25%{ transform: rotate(-2deg);} 75%{ transform: rotate(2deg);} }

/* ---- Generic section heading ------------------------------------------- */
.sec-head { max-width: 60ch; margin-bottom: 2.2rem; }
.sec-head h2 { font-size: clamp(1.8rem, 4.5vw, 2.7rem); }
.center { text-align: center; margin-inline: auto; }

/* ---- Feature cards ------------------------------------------------------ */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.2rem; }
.card { padding: 1.4rem 1.4rem 1.5rem; background: var(--cream-card); }
.card h3 { font-size: 1.25rem; margin-bottom: .4rem; }
.card p { margin: 0; font-size: .98rem; }
.card__ico {
  width: 52px; height: 52px; border-radius: 14px; border: var(--stroke-w) solid var(--navy);
  display: grid; place-items: center; margin-bottom: 1rem; box-shadow: var(--shadow-sm);
}
.card__ico svg { width: 28px; height: 28px; }

/* ---- Key (Fitzgerald) --------------------------------------------------- */
.key-panel { padding: clamp(1.5rem, 4vw, 2.4rem); }
.key-grid { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.4rem; }
.key-chip {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .5rem .9rem .5rem .6rem; border-radius: 999px;
  border: var(--stroke-w) solid var(--navy); background: var(--cream-card);
  font-family: var(--font-display); font-weight: 600; font-size: .98rem;
  box-shadow: var(--shadow-sm);
}
.key-chip .dot { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--navy); }

/* ---- Languages ---------------------------------------------------------- */
.lang-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1rem; }
.lang {
  padding: 1.2rem 1.3rem; background: var(--cream-card);
  display: flex; flex-direction: column; gap: .15rem;
}
.lang b { font-family: var(--font-display); font-size: 1.3rem; }
.lang span { color: var(--navy-soft); font-weight: 600; font-size: .95rem; }
.lang .hi { font-family: var(--font-display); font-weight: 700; color: var(--purple-ink); font-size: 1.05rem; }

/* ---- Steps -------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 1.2rem; counter-reset: step; }
.step { padding: 1.4rem; background: var(--cream-card); position: relative; }
.step__n {
  counter-increment: step;
  font-family: var(--font-display); font-weight: 800; font-size: 1.1rem;
  width: 40px; height: 40px; border-radius: 50%; border: var(--stroke-w) solid var(--navy);
  display: grid; place-items: center; background: var(--peach); box-shadow: var(--shadow-sm);
  margin-bottom: .9rem;
}
.step__n::before { content: counter(step); }
.step h3 { font-size: 1.2rem; margin-bottom: .35rem; }
.step p { margin: 0; font-size: .96rem; }

/* ---- Waitlist ----------------------------------------------------------- */
.waitlist { padding: clamp(1.8rem, 5vw, 3rem); }
.waitlist__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.form-row { display: grid; gap: .9rem; }
.field { display: grid; gap: .35rem; }
.field label { font-family: var(--font-display); font-weight: 600; font-size: .95rem; }
.field input, .field select, .field textarea {
  font-family: var(--font-body); font-size: 1rem; color: var(--navy);
  padding: .72rem .9rem; border: var(--stroke-w) solid var(--navy);
  border-radius: var(--radius-sm); background: var(--cream); width: 100%;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: #98917d; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.form-msg { font-weight: 700; font-family: var(--font-display); margin-top: .3rem; min-height: 1.4em; }
.form-msg.ok { color: var(--k-verb); }
.form-msg.err { color: var(--coral); }
.form-note { font-size: .82rem; color: var(--navy-soft); margin-top: .6rem; }

.success-card { padding: 1.6rem; background: var(--cream-card); text-align: center; }
.success-card .badge {
  width: 58px; height: 58px; border-radius: 50%; border: var(--stroke-w) solid var(--navy);
  background: var(--k-verb); display: grid; place-items: center; margin: 0 auto 1rem;
  box-shadow: var(--shadow-sm);
}
.hidden { display: none !important; }

/* Off-screen, not display:none, so honeypot bot checks still see and fill
   the field, but sighted visitors never notice it. */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---- FAQ ---------------------------------------------------------------- */
.faq { display: grid; gap: .8rem; max-width: 780px; margin-inline: auto; }
.qa { background: var(--cream-card); border: var(--stroke-w) solid var(--navy); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.qa summary {
  list-style: none; cursor: pointer; padding: 1.05rem 1.3rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1.1rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "+"; font-size: 1.5rem; color: var(--purple-ink); transition: transform .2s; line-height: 1;
}
.qa[open] summary::after { transform: rotate(45deg); }
.qa__body { padding: 0 1.3rem 1.2rem; }
.qa__body p { margin: 0; }

/* ---- Callout band ------------------------------------------------------- */
.band {
  background: var(--navy); color: var(--cream);
  border-radius: var(--radius-lg); padding: clamp(2rem, 5vw, 3rem);
  text-align: center; box-shadow: var(--shadow);
}
.band h2 { color: #fff; }
.band p { color: #e7ddc7; max-width: 52ch; margin-inline: auto; }
.band .btn { margin-top: 1.2rem; }

/* ---- Footer ------------------------------------------------------------- */
.site-footer {
  border-top: var(--stroke-w) solid var(--navy);
  background: var(--cream-deep);
  margin-top: 2rem;
}
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; padding-block: clamp(2.2rem, 5vw, 3.2rem); }
.footer__grid h4 { font-family: var(--font-display); font-size: 1rem; margin-bottom: .8rem; }
.footer__grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.footer__grid a { color: var(--navy); text-decoration: none; font-weight: 600; }
.footer__grid a:hover { color: var(--purple-ink); text-decoration: underline; }
.footer__brand p { font-size: .95rem; color: var(--navy-soft); max-width: 34ch; }
.footer__bottom {
  border-top: 1px solid rgba(22,41,77,0.18); padding-block: 1.2rem;
  display: flex; flex-wrap: wrap; gap: .6rem; justify-content: space-between;
  font-size: .88rem; color: var(--navy-soft);
}

/* ---- Legal pages -------------------------------------------------------- */
.legal { max-width: 800px; }
.legal .updated { font-weight: 700; color: var(--purple-ink); font-family: var(--font-display); }
.legal h2 { font-size: 1.4rem; margin-top: 2rem; }
.legal h3 { font-size: 1.12rem; margin-top: 1.4rem; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: .4rem; }
.notice {
  background: var(--cream-card); border: var(--stroke-w) solid var(--navy);
  border-radius: var(--radius); padding: 1.1rem 1.3rem; box-shadow: var(--shadow-sm);
  margin-bottom: 1.8rem;
}
.notice p { margin: 0; font-size: .96rem; }
.page-hero { padding-block: clamp(2.5rem,6vw,4rem) clamp(1.5rem,4vw,2.5rem); }
.page-hero h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; }

/* ---- Reveal animation --------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 880px) {
  .hero__grid { grid-template-columns: 1fr; }
  .waitlist__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .two-col { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__cta .btn { flex: 1 1 auto; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}