:root{
  /* ---- Warm neutral surface ramp ---- */
  --stage:  #ECE7DF;   /* backdrop behind the card            */
  --paper:  #FAF8F4;   /* warm app background                 */
  --surface:#FFFFFF;   /* input fields / crisp foreground     */

  /* ---- Warm ink ---- */
  --ink:      #2A2622; /* primary text (warm near-black)      */
  --ink-soft: #6B645B; /* labels / secondary                  */
  --ink-mute: #948C81; /* helper text / adornments            */

  /* ---- Trust green (warm-leaning) ---- */
  --primary:      #2F6A54;
  --primary-press:#275846;
  --primary-tint: #EDF3F0;

  /* ---- Structure ---- */
  --line:   #E8E2D8;   /* soft warm hairline                  */
  --line-2: #DED7CB;   /* slightly stronger divider           */
  --focus:  rgba(47,106,84,.28);

  /* ---- Feedback ---- */
  --error:      #B23A2E;
  --error-tint: rgba(178,58,46,.10);

  --r-lg: 14px;
  --r-md: 12px;
  --r-sm: 10px;
  --shadow: 0 1px 2px rgba(42,38,34,.04);
  --shadow-lift: 0 24px 60px -28px rgba(42,38,34,.35), 0 2px 8px rgba(42,38,34,.06);
}

*{ box-sizing:border-box; margin:0; padding:0; }

html,body{ height:100%; }
body{
  font-family:"Hanken Grotesk", system-ui, -apple-system, sans-serif;
  background:var(--stage);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100dvh;
  padding:26px 16px;
}

/* ============ Card container (narrow, centered) ============ */
.device{
  width:100%;
  max-width:390px;
  background:var(--paper);
  border-radius:34px;
  box-shadow:var(--shadow-lift);
  overflow:hidden;
  border:1px solid rgba(42,38,34,.06);
}

/* ============ App ============ */
.app{ padding:30px 22px 22px; }

/* ---- Header ---- */
.eyebrow{
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:10px;
}
h1{
  font-size:25px;
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.015em;
  color:var(--ink);
}
.lede{
  margin-top:8px;
  font-size:14px;
  line-height:1.2;
  color:var(--ink-soft);
  font-weight:400;
  max-width:48ch;
}

/* ---- Form ---- */
form{ margin-top:24px; display:flex; flex-direction:column; gap:14px; }

.field{ display:flex; flex-direction:column; gap:6px; }

.row{ display:flex; align-items:baseline; justify-content:space-between; gap:10px; }
label,.label{
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-soft);
  letter-spacing:.005em;
}
.tag{
  font-size:11px;
  font-weight:600;
  letter-spacing:.03em;
  color:var(--ink-mute);
  background:#F2EEE6;
  padding:2px 7px;
  border-radius:20px;
  transition:opacity .15s ease;
}
.tag.hidden{ opacity:0; visibility:hidden; }

/* ---- Input control ---- */
.control{
  display:flex;
  align-items:center;
  height:52px;
  background:var(--surface);
  border:1px solid var(--line-2);
  border-radius:var(--r-md);
  padding:0 14px;
  box-shadow:var(--shadow);
  transition:border-color .15s ease, box-shadow .15s ease;
}
.control:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--focus);
}
.control.invalid{
  border-color:var(--error);
  box-shadow:0 0 0 3px var(--error-tint);
}
.adorn{
  font-size:16px;
  font-weight:500;
  color:var(--ink-mute);
  flex:none;
}
.adorn.left{ margin-right:8px; }
.adorn.right{ margin-left:8px; }
.control input{
  flex:1;
  min-width:0;
  border:none;
  outline:none;
  background:transparent;
  font-family:inherit;
  font-size:16px;          /* 16px avoids iOS zoom-on-focus */
  font-weight:600;
  color:var(--ink);
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
}
.control input::placeholder{ color:#C4BCB0; font-weight:500; }

/* ---- Segmented loan term ---- */
.segment{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:6px;
  background:#F1ECE4;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:5px;
}
.seg-btn{
  appearance:none;
  border:none;
  background:transparent;
  font-family:inherit;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-soft);
  height:42px;
  border-radius:9px;
  cursor:pointer;
  transition:background .18s ease, color .18s ease, box-shadow .18s ease;
}
.seg-btn:hover:not(.is-selected){ color:var(--ink); }
.seg-btn.is-selected{
  background:var(--primary);
  color:#fff;
  box-shadow:0 1px 2px rgba(39,88,70,.32);
}
.seg-btn:focus-visible{ outline:none; box-shadow:0 0 0 3px var(--focus); }

/* ---- Helper + error text ---- */
.helper{
  font-size:12.5px;
  line-height:1.45;
  color:var(--ink-mute);
  font-weight:400;
}
.error{
  font-size:12.5px;
  line-height:1.45;
  color:var(--error);
  font-weight:500;
}
.error:empty{ display:none; }

/* ---- Calculate ---- */
.calc{
  margin-top:5px;
  appearance:none;
  border:none;
  width:100%;
  height:54px;
  background:var(--primary);
  color:#fff;
  font-family:inherit;
  font-size:16px;
  font-weight:700;
  letter-spacing:.01em;
  border-radius:var(--r-md);
  cursor:pointer;
  box-shadow:0 2px 10px -2px rgba(39,88,70,.45);
  transition:background .15s ease, transform .06s ease;
}
.calc:hover{ background:var(--primary-press); }
.calc:active{ transform:scale(.988); }
.calc:focus-visible{ outline:none; box-shadow:0 0 0 4px var(--focus); }

/* ---- Result ---- */
.result{
  margin-top:22px;
  padding-top:22px;
  border-top:1px solid var(--line-2);
  text-align:center;
}
.result-label{
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--ink-soft);
}
.amount{
  margin-top:8px;
  display:flex;
  align-items:baseline;
  justify-content:center;
  gap:2px;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1;
}
.amount .cur{ font-size:26px; font-weight:600; align-self:flex-start; margin-top:8px; }
.amount .num{ font-size:54px; font-weight:700; }
.amount .per{ font-size:16px; font-weight:600; color:var(--ink-mute); margin-left:4px; }
.amount.show{ animation:rise .32s cubic-bezier(.2,.7,.2,1); }
@keyframes rise{ from{ opacity:0; transform:translateY(6px);} to{ opacity:1; transform:none; } }

.disclaimer{
  margin-top:18px;
  text-align:center;
  font-size:11.5px;
  line-height:1.5;
  color:var(--ink-mute);
  max-width:54ch;
  margin-left:auto;
  margin-right:auto;
}

@media (prefers-reduced-motion: reduce){
  *{ transition:none !important; animation:none !important; }
}

/* On true mobile, let it breathe full-bleed */
@media (max-width:430px){
  body{ padding:0; background:var(--paper); align-items:flex-start;}
  .device{ max-width:none; border-radius:0; border:none; box-shadow:none; min-height:100dvh; }
}