/* Little Echo website. Calm like the app: one soft sky ground, white cards, the three language colours used only for words.
   Layout: a single 44rem reading column; the home page widens to 64rem for the hero and the four-step row. */

@font-face{font-family:'Baloo 2';font-weight:700;font-display:swap;src:url(fonts/baloo-2-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:'Baloo 2';font-weight:800;font-display:swap;src:url(fonts/baloo-2-latin-800-normal.woff2) format('woff2')}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:400;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:400;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:700;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-700-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Atkinson Hyperlegible';font-weight:700;font-display:swap;src:url(fonts/atkinson-hyperlegible-latin-ext-700-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Noto Sans Thai';font-weight:400;font-display:swap;src:url(fonts/noto-sans-thai-thai-400-normal.woff2) format('woff2');unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:'Noto Sans Thai';font-weight:600;font-display:swap;src:url(fonts/noto-sans-thai-thai-600-normal.woff2) format('woff2');unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}

:root{
  --sky:#E6F2FA; --sky2:#D3E8F5; --paper:#FFFFFF; --ink:#13263A; --muted:#566D82; --line:#C9DCEA;
  --link:#2459C9; --en:#2E5BE0; --th:#0C9670; --zh:#DD4237; --sun:#FFB81C; --chip:#EEF5FA;
  --display:"Baloo 2","Arial Rounded MT Bold",ui-rounded,system-ui,sans-serif;
  --body:"Atkinson Hyperlegible","Noto Sans Thai",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB",sans-serif;
  --step:clamp(1rem,0.96rem + 0.2vw,1.0625rem);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --sky:#0D1824; --sky2:#13212F; --paper:#182A3B; --ink:#E7F0F7; --muted:#9DB1C3; --line:#2A425A;
  --link:#8FAEFF; --en:#8FA9FF; --th:#47D3A6; --zh:#FF8A7E; --sun:#FFC53D; --chip:#1E3346; color-scheme:dark}}
:root[data-theme="dark"]{
  --sky:#0D1824; --sky2:#13212F; --paper:#182A3B; --ink:#E7F0F7; --muted:#9DB1C3; --line:#2A425A;
  --link:#8FAEFF; --en:#8FA9FF; --th:#47D3A6; --zh:#FF8A7E; --sun:#FFC53D; --chip:#1E3346; color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--sky);color:var(--ink);font-family:var(--body);font-size:var(--step);line-height:1.6;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
img{max-width:100%;height:auto}
a{color:var(--link);text-underline-offset:0.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px;border-radius:4px}

.wrap{max-width:44rem;margin-inline:auto}
.wide{max-width:64rem;margin-inline:auto}

/* Header */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-block:20px 8px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand img{width:40px;height:40px;border-radius:10px}
.brand span{font-family:var(--display);font-weight:800;font-size:1.35rem;line-height:1}
.top nav{display:flex;gap:18px;flex-wrap:wrap}
.top nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:0.95rem}
.top nav a:hover,.top nav a[aria-current="page"]{text-decoration:underline;text-decoration-color:var(--sun);text-decoration-thickness:3px}

/* Type */
h1,h2,h3{font-family:var(--display);line-height:1.15;text-wrap:balance;margin:0}
h1{font-weight:800;font-size:clamp(2.1rem,1.5rem + 3vw,3.4rem);letter-spacing:-0.01em}
h2{font-weight:800;font-size:clamp(1.5rem,1.25rem + 1.2vw,2rem)}
h3{font-weight:700;font-size:1.2rem}
p{margin:0}
.lede{font-size:1.15rem;color:var(--muted);max-width:34rem}
.eyebrow{font-size:0.8rem;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted)}
.soon{display:inline-flex;align-items:center;gap:8px;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-weight:700;font-size:0.95rem}
.soon::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--sun)}

/* Hero */
.hero{display:grid;grid-template-columns:1.1fr 0.9fr;gap:40px;align-items:center;padding-block:40px 56px}
.hero-text{display:flex;flex-direction:column;gap:18px;min-width:0}
.stage{position:relative;display:grid;place-items:center;padding-block:28px}
/* Echo rings: the voice moving outward from the card */
.stage::before,.stage::after{content:"";position:absolute;border-radius:50%;border:2px solid var(--sky2);aspect-ratio:1;max-width:100%}
.stage::before{width:min(100%,24rem)}
.stage::after{width:min(82%,19.5rem)}
.card{position:relative;z-index:1;background:var(--paper);border-radius:28px;box-shadow:0 10px 0 var(--en),0 18px 40px rgba(19,38,58,0.12);
  padding:22px 26px 24px;width:min(100%,15.5rem);display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
.card img{width:9rem;height:9rem;border-radius:20px}
.words{display:flex;flex-direction:column;gap:2px;width:100%}
.word{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-weight:700;font-size:1.15rem}
.word small{font-weight:400;font-size:0.82rem;color:var(--muted)}
.w-en{color:var(--en)} .w-th{color:var(--th);font-family:"Noto Sans Thai",var(--body)} .w-zh{color:var(--zh)}
.card-note{font-size:0.8rem;color:var(--muted)}

/* Sections */
section{padding-block:40px}
.section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:24px;max-width:38rem}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
.steps li{counter-increment:step;background:var(--paper);border-radius:20px;padding:20px;display:flex;flex-direction:column;gap:6px;min-width:0}
.steps li::before{content:counter(step);font-family:var(--display);font-weight:800;font-size:1rem;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;background:var(--chip);color:var(--ink);margin-bottom:4px}
.steps p{color:var(--muted);font-size:0.97rem}
.btns{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}
.btns span{font-size:0.78rem;font-weight:700;border:1px solid var(--line);border-radius:999px;padding:2px 9px;background:var(--chip)}

.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.list li{display:grid;grid-template-columns:22px 1fr;gap:10px;min-width:0}
.list li::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--sun);margin-top:0.55em;justify-self:center}
.list strong{display:block}
.list span{color:var(--muted)}

.langs{display:flex;flex-wrap:wrap;gap:10px}
.langs span{background:var(--paper);border-radius:999px;padding:6px 14px;font-weight:700;border:1px solid var(--line)}
.langs .l-en{color:var(--en)} .langs .l-th{color:var(--th)} .langs .l-zh{color:var(--zh)}
.langs .more{color:var(--muted);font-weight:400;border-style:dashed;background:transparent}

.signup{background:var(--paper);border-radius:24px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.signup .section-head{margin-bottom:0}
.signup-form{display:flex;flex-direction:column;gap:10px;min-width:0}
.field-row{display:flex;gap:10px;flex-wrap:wrap}
.field-row input{flex:1 1 14rem;min-width:0;font:inherit;padding:12px 16px;border-radius:14px;border:1.5px solid var(--line);background:var(--sky);color:var(--ink)}
.field-row input::placeholder{color:var(--muted)}
.field-row button{flex:0 0 auto;font:inherit;font-weight:700;padding:12px 20px;border-radius:14px;border:0;background:var(--ink);color:var(--paper);cursor:pointer}
.field-row button:hover{background:var(--en)}
.fine{font-size:0.88rem;color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media (max-width:760px){.signup{grid-template-columns:1fr;padding:22px}}
.maker{background:var(--paper);border-radius:24px;padding:28px;display:flex;flex-direction:column;gap:10px}

/* Legal and support pages */
.doc{padding-block:32px 48px;display:flex;flex-direction:column;gap:28px}
.doc header{display:flex;flex-direction:column;gap:8px}
.doc .updated{color:var(--muted);font-size:0.95rem}
.sheet{background:var(--paper);border-radius:24px;padding:clamp(20px,4vw,40px);display:flex;flex-direction:column;gap:14px}
.sheet h2{font-size:1.45rem;margin-top:18px}
.sheet h2:first-child{margin-top:0}
.sheet h3{margin-top:8px}
.sheet ul{margin:0;padding-left:1.25rem;display:flex;flex-direction:column;gap:6px}
.short{background:var(--chip);border-radius:16px;padding:18px 20px}
.short ul{gap:8px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;font-size:0.95rem;min-width:32rem}
th,td{text-align:left;vertical-align:top;padding:10px 14px;border-bottom:1px solid var(--line)}
th{font-size:0.8rem;letter-spacing:0.06em;text-transform:uppercase;color:var(--muted);background:var(--chip)}
tr:last-child td{border-bottom:0}
.contact-box{display:flex;flex-direction:column;gap:4px;background:var(--chip);border-radius:16px;padding:18px 20px}
.email{font-weight:700;font-size:1.15rem;word-break:break-all}
.todo{background:#FFF1C2;color:#5A4300;border-radius:4px;padding:0 4px}
details{border-top:1px solid var(--line);padding-block:14px}
details:first-of-type{border-top:0}
summary{cursor:pointer;font-weight:700;font-size:1.05rem;list-style-position:outside}
details p,details ul{margin-top:8px;color:var(--ink)}

/* Footer */
footer{padding-block:32px 40px;border-top:1px solid var(--line);margin-top:24px;color:var(--muted);font-size:0.92rem}
footer .wide,footer .wrap{display:flex;flex-direction:column;gap:10px}
footer nav{display:flex;flex-wrap:wrap;gap:18px}
footer nav a{color:var(--ink);font-weight:700;text-decoration:none}
footer nav a:hover{text-decoration:underline}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:12px;padding-block:24px 32px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .steps,.two{grid-template-columns:1fr}
  .two{gap:24px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}