/* ---------------------------------------------------------- buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-family:var(--f-sans);font-size:15px;font-weight:600;cursor:pointer;
  white-space:nowrap;transition:background-color .2s var(--ease),
    border-color .2s var(--ease),transform .12s var(--ease),box-shadow .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.35;cursor:not-allowed;box-shadow:none;transform:none}
.btn.primary{background:var(--primary);color:var(--on-primary);box-shadow:0 4px 18px var(--primary-glow)}
.btn.primary:hover:not(:disabled){background:var(--primary-hi);box-shadow:0 6px 24px var(--primary-glow)}
.btn.ghost{background:var(--bg-surface);color:var(--text-main);border-color:var(--line-hi)}
.btn.ghost:hover:not(:disabled){background:var(--bg-card-hover)}
.btn.danger{background:transparent;color:var(--danger);border-color:var(--danger-line)}
.btn.danger:hover{background:var(--danger-soft)}
.btn.sm{padding:9px 14px;font-size:13.5px;min-height:40px}
.btn.lg{padding:14px 28px;font-size:16px}
.btn.wide{width:100%}
.btn .cost{font-family:var(--f-mono);font-size:12.5px;padding:2px 7px;border-radius:var(--r-pill);
  background:rgba(0,0,0,.22)}

/* ---------------------------------------------------------- inputs */
.field{display:block;margin-bottom:var(--s3)}
.field > .lbl{display:block;font-size:11.5px;letter-spacing:.11em;text-transform:uppercase;
  color:var(--text-muted);font-weight:600;margin-bottom:8px}
.field .hint{display:block;color:var(--text-faint);font-size:12.5px;margin-top:7px}
input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]):not([type=hidden]),
textarea,select{
  width:100%;padding:12px 14px;background:var(--bg-input);color:var(--text-main);
  border:1px solid var(--line);border-radius:var(--r-sm);
  font-family:var(--f-sans);font-size:15px;line-height:1.5;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
textarea{resize:vertical;min-height:76px}
select{appearance:none;padding-right:38px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239CA3AF' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center}
input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]):focus,
textarea:focus,select:focus{outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-glow)}
input::placeholder,textarea::placeholder{color:var(--text-faint)}

input[type=file]{width:100%;padding:10px 12px;background:var(--bg-input);
  border:1px dashed var(--line-hi);border-radius:var(--r-sm);color:var(--text-muted);
  font-family:var(--f-sans);font-size:13.5px;cursor:pointer}
input[type=file]::file-selector-button{margin-right:12px;padding:7px 14px;
  border:1px solid var(--line-hi);border-radius:6px;background:var(--bg-card);
  color:var(--text-main);font-family:var(--f-sans);font-size:13px;cursor:pointer}
input[type=file]:hover{border-color:var(--primary)}

/* ------------------------------------------- choice cards (radio) */
.choices{display:grid;gap:var(--s2)}
.choices.two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.choices.three{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:620px){.choices.two,.choices.three{grid-template-columns:1fr}}

.choice{position:relative;display:block;cursor:pointer;padding:15px 17px;
  border-radius:var(--r);background:var(--bg-surface);border:1px solid var(--line);
  transition:border-color .2s var(--ease),background-color .2s var(--ease),
             transform .18s var(--ease)}
.choice:hover{border-color:var(--line-hi);transform:translateY(-1px)}
.choice input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.choice .t{display:block;font-size:15px;font-weight:600;line-height:1.3}
.choice .d{display:block;font-size:13px;color:var(--text-muted);margin-top:3px;line-height:1.4}
.choice .tick{position:absolute;top:14px;right:14px;width:17px;height:17px;
  border-radius:50%;border:1.5px solid var(--line-hi);
  transition:border-color .2s var(--ease),background-color .2s var(--ease)}
.choice .tick::after{content:'';position:absolute;inset:4px;border-radius:50%;
  background:var(--on-primary);transform:scale(0);transition:transform .2s var(--bounce)}
.choice:has(input:checked){border-color:var(--primary);background:var(--primary-soft)}
.choice:has(input:checked) .t{color:var(--primary)}
.choice:has(input:checked) .tick{border-color:var(--primary);background:var(--primary)}
.choice:has(input:checked) .tick::after{transform:scale(1)}
.choice:has(input:focus-visible){outline:2px solid var(--primary);outline-offset:2px}

/* ------------------------------------------- chips (checkbox) */
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{position:relative;display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  padding:9px 15px;border-radius:var(--r-pill);background:var(--bg-surface);
  border:1px solid var(--line);font-size:13.5px;
  transition:border-color .2s var(--ease),background-color .2s var(--ease),
             color .2s var(--ease)}
.chip:hover{border-color:var(--line-hi)}
.chip input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.chip .box{width:14px;height:14px;border-radius:4px;border:1.5px solid var(--line-hi);
  flex:none;position:relative;transition:all .2s var(--ease)}
.chip .box::after{content:'';position:absolute;left:4px;top:1px;width:4px;height:8px;
  border:solid var(--on-primary);border-width:0 2px 2px 0;transform:rotate(45deg) scale(0);
  transition:transform .2s var(--bounce)}
.chip:has(input:checked){border-color:var(--primary);background:var(--primary-soft);
  color:var(--primary)}
.chip.muted{opacity:.4;cursor:not-allowed}
.chip.muted:hover{border-color:var(--line)}
.chip:has(input:checked) .box{background:var(--primary);border-color:var(--primary)}
.chip:has(input:checked) .box::after{transform:rotate(45deg) scale(1)}
.chip.link:has(.on){border-color:var(--primary)}

/* ------------------------------------------- sliders */
.slider{display:block;margin-bottom:var(--s3)}
.slider .top{display:flex;justify-content:space-between;align-items:baseline;
  margin-bottom:9px}
.slider .name{font-size:13px;color:var(--text-muted);font-weight:500}
.slider output{font-family:var(--f-mono);font-size:12px;color:var(--primary)}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:22px;
  background:transparent;cursor:pointer;padding:0;border:none}
input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:2px;
  background:var(--line-hi)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;
  width:16px;height:16px;margin-top:-6px;border-radius:50%;background:var(--primary);
  border:2px solid var(--bg-dark);box-shadow:0 0 0 1px var(--primary),0 0 10px var(--primary-glow);
  transition:transform .15s var(--bounce)}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.18)}
input[type=range]::-moz-range-track{height:4px;border-radius:2px;background:var(--line-hi)}
input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;
  background:var(--primary);border:2px solid var(--bg-dark);
  box-shadow:0 0 0 1px var(--primary),0 0 10px var(--primary-glow)}
input[type=range]:focus-visible::-webkit-slider-thumb{outline:2px solid var(--primary);
  outline-offset:3px}


/* ---------------------------------------------------------- dialogs
   Replaces the browser's confirm() and prompt(), which cannot be styled and
   announce the hostname to the user. */
.dlg-backdrop{position:fixed;inset:0;z-index:120;display:flex;align-items:center;
  justify-content:center;padding:var(--s4);
  background:var(--overlay);backdrop-filter:blur(6px);
  animation:dlgIn .18s var(--ease)}
@keyframes dlgIn{from{opacity:0}to{opacity:1}}
.dlg{width:100%;max-width:420px;padding:var(--s4);border-radius:var(--r-lg);
  background:var(--bg-surface);border:1px solid var(--line-hi);
  box-shadow:0 24px 60px -18px rgba(0,0,0,.8);
  animation:dlgUp .24s var(--ease)}
@keyframes dlgUp{from{opacity:0;transform:translateY(12px) scale(.98)}
  to{opacity:1;transform:none}}
.dlg-title{font-size:19px;font-weight:700;letter-spacing:-.025em;margin-bottom:var(--s2)}
.dlg-body{color:var(--text-muted);font-size:14.5px;line-height:1.6}
.dlg-body dl{display:grid;grid-template-columns:auto auto;gap:5px var(--s3);
  margin-top:var(--s3);justify-content:start}
.dlg-body dt{color:var(--text-faint);font-size:13px}
.dlg-body dd{margin:0;font-family:var(--f-mono);font-size:13px;color:var(--text-main)}
.dlg-body dd.spend{color:var(--primary)}
.dlg-input{margin-top:var(--s3)}
.dlg-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:var(--s4)}