:root{
  --green:#3B5950;
  --green-d:#2a3f38;
  --green-deep:#1e2e28;
  --gold:#c0a16b;
  --ink:#232825;
  --muted:#7c837f;
  --line:#e6e9e6;
  --soft:#f5f7f5;
  --cream:#fcfaf3;
  --white:#fff;
  --font-body:"Cabin","Helvetica Neue",Arial,sans-serif;
  --font-display:"Jost","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);
  background:radial-gradient(120% 100% at 50% 0%, #fff 0%, var(--cream) 55%, var(--soft) 100%);
  display:flex;flex-direction:column;min-height:100dvh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* progress */
.progress{position:fixed;top:0;left:0;right:0;height:5px;background:rgba(59,89,80,.12);z-index:20}
.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--green));transition:width .45s cubic-bezier(.4,0,.2,1)}

/* header */
.tf-header{display:flex;align-items:baseline;gap:6px;padding:20px clamp(20px,6vw,64px)}
.tf-logo{height:22px;width:auto}
.tf-tag{font-family:var(--font-display);color:var(--gold);font-weight:500;font-size:.92rem}

/* stage */
.stage{
  flex:1;display:flex;align-items:center;
  padding:10px clamp(24px,8vw,120px) 40px;
  max-width:820px;width:100%;margin:0 auto;
}
.screen{width:100%;animation:slideIn .5s cubic-bezier(.2,.7,.2,1) both}
.screen.out{animation:slideOut .32s ease both}
@keyframes slideIn{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
@keyframes slideOut{from{opacity:1;transform:none}to{opacity:0;transform:translateY(-24px)}}

.q-index{font-family:var(--font-display);color:var(--green);font-weight:600;font-size:.95rem;margin-bottom:12px;display:flex;align-items:center;gap:7px}
.q-index svg{width:13px;height:13px;fill:var(--green)}
.q-title{font-family:var(--font-display);font-weight:600;color:var(--green-deep);font-size:clamp(1.5rem,4.4vw,2.5rem);line-height:1.18;margin:0 0 10px}
.q-hint{color:var(--muted);font-size:clamp(1rem,2.4vw,1.15rem);margin:0 0 26px;line-height:1.5}
.req{color:var(--gold)}

/* text inputs */
.tf-input{
  width:100%;max-width:560px;border:none;border-bottom:2px solid var(--line);
  background:transparent;font-family:var(--font-display);font-size:clamp(1.3rem,3.4vw,1.8rem);
  color:var(--ink);padding:8px 2px;outline:none;transition:border-color .2s;
}
.tf-input::placeholder{color:#c3c9c4}
.tf-input:focus{border-color:var(--green)}
textarea.tf-input{resize:none;min-height:96px;border:2px solid var(--line);border-radius:14px;padding:14px 16px;font-size:clamp(1.05rem,2.6vw,1.25rem)}
textarea.tf-input:focus{border-color:var(--green)}

/* rating options */
.ratings{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.rate{
  flex:1 1 120px;min-width:104px;max-width:160px;cursor:pointer;
  border:2px solid var(--line);border-radius:16px;background:var(--white);
  padding:18px 10px 14px;text-align:center;transition:transform .15s,border-color .15s,box-shadow .15s;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.rate:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:0 10px 24px rgba(35,40,37,.08)}
.rate.sel{border-color:var(--green);background:#eef3f0;box-shadow:0 10px 24px rgba(59,89,80,.14)}
.rate .emo{font-size:2rem;line-height:1}
.rate .lbl{font-family:var(--font-display);font-weight:500;font-size:.9rem;color:var(--ink)}
.rate .key{font-size:.72rem;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:1px 6px}

/* primary button */
.cta{
  margin-top:30px;display:inline-flex;align-items:center;gap:12px;
  font-family:var(--font-display);font-weight:600;font-size:1.05rem;
  background:var(--green);color:#fff;border:none;border-radius:12px;
  padding:15px 30px;cursor:pointer;transition:transform .18s,background .18s;
}
.cta:hover{background:var(--green-d);transform:translateY(-2px)}
.cta:disabled{opacity:.5;cursor:default;transform:none}
.cta .k{font-size:.78rem;font-weight:400;opacity:.75;border-left:1px solid rgba(255,255,255,.35);padding-left:10px}

/* welcome / thanks */
.center{text-align:center;max-width:760px;margin:0 auto;width:100%}
.center .big-emo{font-size:3.2rem;margin-bottom:18px}
.center .q-title{font-size:clamp(1.7rem,4.8vw,2.4rem)}
.stars-row{color:var(--gold);font-size:1.5rem;letter-spacing:4px;margin-bottom:16px}
/* keep the welcome headline on one line on larger screens */
@media(min-width:720px){.welcome-title{white-space:nowrap}}

/* incentive badge */
.incentive{
  display:inline-flex;align-items:center;gap:9px;margin:4px auto 24px;
  background:#eef3f0;color:var(--green-d);border:1px solid #d7e2dc;border-radius:999px;
  padding:10px 18px;font-family:var(--font-display);font-weight:500;font-size:.92rem;line-height:1.3;
}
.incentive strong{color:var(--green)}
.incentive .g{font-size:1.1rem}

.err{color:#c0453b;font-size:.92rem;margin-top:14px;min-height:1em}

/* footer nav */
.tf-footer{
  position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:14px clamp(20px,6vw,64px);
  background:rgba(252,250,243,.9);backdrop-filter:blur(8px);border-top:1px solid var(--line);
}
.nav-hint{color:var(--muted);font-size:.85rem}
.nav-hint b{color:var(--ink);font-weight:600}
.nav-btns{display:flex;gap:8px}
.nav-arrow{
  width:44px;height:38px;border-radius:9px;border:none;cursor:pointer;
  background:var(--green);color:#fff;font-size:1rem;transition:background .18s,opacity .18s;
}
.nav-arrow:hover{background:var(--green-d)}
.nav-arrow:disabled{opacity:.35;cursor:default;background:var(--muted)}

@media(max-width:640px){
  /* everything centered on phones */
  .stage{padding:20px 22px 28px;align-items:center;text-align:center}
  .screen{display:flex;flex-direction:column;align-items:center}
  .q-index{justify-content:center}
  .q-title,.q-hint{width:100%}
  .tf-input{text-align:center;margin-left:auto;margin-right:auto}
  textarea.tf-input{text-align:left}
  .ratings{justify-content:center;width:100%}
  .incentive{margin-left:auto;margin-right:auto}
  .cta{margin-left:auto;margin-right:auto}
  .err{width:100%}
  .nav-hint{display:none}
  .rate{flex:1 1 44%;min-width:0;max-width:none}
  .rate .key{display:none}
}
@media(max-width:380px){
  .rate{flex:1 1 100%}
  .q-title{font-size:1.55rem}
}
@media(prefers-reduced-motion:reduce){
  .screen,.screen.out{animation:none}
  .progress-bar{transition:none}
}