/* =========================
   Tide Design System
   Tokens follow Tide_Design_System.pptx:
   teal carries the brand, gold is a whisper; Albert Sans for headings,
   Inter for body/UI, Fira Mono for eyebrows; cards 16px, inputs 4px,
   buttons zero - pills are reserved for avatars.
   ========================= */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root{
  /* Palette */
  --teal:#0A4246;           /* brand teal */
  --teal-deep:#083438;      /* deep section */
  --cyan:#54B6B9;           /* cyan accent */
  --gold:#B8A058;           /* a whisper */
  --link:#943800;           /* link orange */
  --off-white:#F8F8F8;
  --hairline:#E6E6E6;
  --muted:#537A7D;          /* muted lead */

  /* Plain white page. A teal scrim over a tinted field read mossy green, so
     the backdrop is neutral too. */
  --page-tint:#FFFFFF;

  /* Semantic names kept stable - runtime-injected CSS resolves these. */
  --blue:var(--teal);
  --blue-dark:var(--teal-deep);
  --blue-pale:#EAF1F1;

  --ink:#000000;            /* pure black on light */
  --dim:#666666;            /* muted lead, 60% */
  --paper:#FFFFFF;
  --bg:var(--page-tint);
  --border:var(--hairline);
  --border-strong:#D5D5D5;

  --danger:#943800;
  --danger-pale:#FBF0EA;
  --success:#0A4246;
  --success-pale:#EAF1F1;
  --warn-pale:#FAF5E8;
  --warn-ink:#6E5E2E;

  --bw:1px;
  --r:16px;                 /* cards and tiles */
  --r-sm:4px;               /* inputs */
  --r-btn:0;                /* buttons are sharp rectangles */

  --shadow-sm: none;
  --shadow: 0 1px 2px rgba(10,66,70,.06);
  --shadow-lg: 0 16px 40px rgba(8,52,56,.16);
  --shadow-blue: 0 0 0 3px rgba(84,182,185,.4);

  --modal-w:520px;
  --modal-pad:32px;
  --modal-gap:20px;

  --safe-top: env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);

  --font-display: "Albert Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Fira Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px; position: relative; overflow-x: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* =========================
   Home card - a light panel with hairlines
   ========================= */
.container {
  background: var(--paper);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r);
  padding: 40px 32px;
  box-shadow: var(--shadow);
  text-align: center;
  max-width: 440px;
  width: 100%;
  position: relative; z-index: 1;
}

/* =========================
   Brand header
   ========================= */
.brand{
  display:flex;
  align-items: baseline;
  justify-content:center;
  gap:10px;
  margin-bottom:28px;
}
.brand-logo{
  width: clamp(56px, 8vw, 72px);
  height:auto;
  display:block;
  align-self: baseline;
}
.brand-title{
  font-family: var(--font-display);
  font-size: clamp(24px, 1.6vw + 16px, 30px);
  font-weight: 400;                 /* light-to-regular */
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
  color: var(--teal);
}

/* Mono uppercase eyebrow - the system's opening move */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  margin: 0 0 8px;
}

/* =========================
   Primary button - sharp rectangle
   ========================= */
.button {
  background: var(--teal);
  color:#fff;
  border: var(--bw) solid var(--teal);
  padding:14px 22px;
  border-radius: var(--r-btn);
  font-family: var(--font-body);
  font-size:15px; font-weight:500;
  cursor:pointer; width:100%;
  margin-bottom: 8px;
  transition: background .15s ease, border-color .15s ease;
}
.button:hover{ background: var(--teal-deep); border-color: var(--teal-deep); }
.button:active{ background:#062A2D; }
.button:disabled{
  background:#E6E6E6; border-color:#E6E6E6; color:#999;
  cursor:not-allowed;
}

/* =========================
   Generic buttons
   ========================= */
.btn {
  appearance:none;
  font-family: var(--font-body);
  border: var(--bw) solid var(--teal);
  border-radius: var(--r-btn);
  padding:12px 20px; font-size:14px; font-weight:500;
  cursor:pointer; width:auto; margin-bottom:0;
  background: transparent; color: var(--teal);
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  min-height: 42px;
}
.btn:hover { background: var(--blue-pale); }
.btn:active { background:#DCE8E8; }
.btn:disabled { opacity:.5; cursor:not-allowed; }
.btn-primary { background: var(--teal); border-color: var(--teal); color:#fff; }
.btn-primary:hover { background: var(--teal-deep); border-color: var(--teal-deep); }
.btn-ghost { background: transparent; color: var(--teal); }
.btn:focus-visible, .button:focus-visible {
  outline: none;
  box-shadow: var(--shadow-blue);
}

/* Spinner */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner{
  display:inline-block; width:15px; height:15px;
  border:1.5px solid rgba(255,255,255,.35); border-right-color:#fff;
  border-radius:50%; animation: spin .7s linear infinite;
  vertical-align:-2px; margin-right:8px;
}
.btn-ghost .spinner{ border-color: rgba(10,66,70,.25); border-right-color: var(--teal); }
.spinner-label{ vertical-align:middle; }

/* =========================
   Status banner
   ========================= */
.status {
  margin-top: 16px; padding: 12px 14px;
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  font-size: 14px;
  text-align: left;
}
.status.info { background: var(--blue-pale); border-color:#CFE2E2; }
.status.success { background: var(--success-pale); border-color:#CFE2E2; color: var(--teal); }
.status.error { background: var(--danger-pale); border-color:#E8D3C7; color: var(--danger); }

.hidden { display:none !important; }
input[type="file"] { display:none; }

/* =========================
   Install gate
   ========================= */
.install-gate{ text-align:left; }
.install-gate__title{
  font-family: var(--font-display);
  font-weight:400; color:var(--teal); font-size:22px;
  line-height:1.2; margin:0 0 10px; text-align:center;
}
.install-gate__body{
  color:var(--dim); font-size:14px; line-height:1.5;
  margin:0 0 20px; text-align:center;
}
.install-gate .steps-list{
  background: var(--off-white);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  padding:16px 16px 16px 34px;
  margin:0 0 16px;
  font-size:14px;
}
.install-gate .steps-list strong{ color: var(--ink); font-weight:600; }

.ios-share-icon{
  display:inline-block;
  vertical-align:-5px;
  color: var(--teal);
  background: var(--paper);
  border:1px solid var(--hairline);
  border-radius:3px;
  padding:1px;
  margin:0 2px;
}

.install-gate__hint{
  margin:0 0 16px;
  text-align:center;
  font-family: var(--font-mono);
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.1em;
  color: var(--muted);
  animation: hintBob 1.6s ease-in-out infinite;
}
@keyframes hintBob { 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(3px); } }

.install-gate__note{
  margin:16px 0 0;
  font-size:13px;
  line-height:1.5;
  color: var(--warn-ink);
  background: var(--warn-pale);
  border: var(--bw) solid #EADFC2;
  border-radius: var(--r-sm);
  padding:12px 14px;
}

/* =========================
   Modal system
   ========================= */
.modal-backdrop{
  position:fixed; inset:0;
  background: rgba(0,0,0,.45);
  display:flex; align-items:center; justify-content:center;
  z-index:1100;
}
.modal-card{
  background: var(--paper);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r);
  padding: var(--modal-pad);
  width: min(var(--modal-w), calc(100% - 32px));
  max-height: min(86vh, 760px);
  overflow:auto;
  box-shadow: var(--shadow-lg);
  text-align:left;
  display:flex; flex-direction:column; gap: var(--modal-gap);
  animation: modalIn .16s ease-out;
}
@keyframes modalIn { from{ opacity:0; transform: translateY(6px); } to{ opacity:1; transform: translateY(0); } }

.modal-header{ display:flex; align-items:center; gap:12px; }
/* Pills are reserved for avatars. */
.avatar{
  width:40px; height:40px;
  border-radius:999px;
  display:grid; place-items:center; font-weight:500; color:#fff;
  background: var(--teal);
  flex:0 0 auto;
  font-family: var(--font-body);
}
.modal-title{
  font-family: var(--font-display);
  font-size:22px; font-weight:400; color:var(--teal); margin:0;
  line-height:1.2; letter-spacing:-0.01em;
}
.sub{ color:var(--muted); font-size:13px; }

.modal-intro, .modal-description{ color:var(--dim); line-height:1.5; font-size:15px; }

/* Alignment modes */
.modal-card.align-center,
.modal-card.align-title-actions,
.modal-card.center { text-align:center; }
.modal-card.align-center .modal-header,
.modal-card.align-title-actions .modal-header,
.modal-card.center .modal-header { justify-content:center; }
.modal-card.align-center .modal-title,
.modal-card.align-center .modal-intro,
.modal-card.align-title-actions .modal-title,
.modal-card.align-title-actions .modal-intro,
.modal-card.center .modal-title,
.modal-card.center .modal-intro { text-align:center; margin-left:auto; margin-right:auto; }

.modal-card.align-center .field,
.modal-card.align-center .kv,
.modal-card.align-center .error-details pre,
.modal-card.center .field,
.modal-card.center .kv,
.modal-card.center .error-details pre { text-align:left; margin-left:auto; margin-right:auto; max-width:520px; }

.modal-actions{ display:flex; gap:12px; justify-content:flex-end; margin-top:4px; }
.modal-card .btn{ width:auto; margin-bottom:0; min-width:110px; }

/* Key/value preview */
.kv{
  display:grid; grid-template-columns:140px 1fr; gap:8px 14px; align-items:baseline;
  background: var(--off-white);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm); padding:16px;
}
.kv-k{
  font-family: var(--font-mono); font-size:11px;
  text-transform:uppercase; letter-spacing:.1em; color: var(--muted);
}
.kv-v{ color:var(--ink); word-break: break-word; }

/* =========================
   Settings
   ========================= */
.settings-title{ text-align:center; }

.settings-group{
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  background: var(--paper);
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.settings-group--danger{ background: var(--danger-pale); border-color:#E8D3C7; }

.settings-group__title{
  font-family: var(--font-mono);
  font-size:11px; font-weight:400; letter-spacing:.12em;
  text-transform:uppercase; color:var(--muted); margin:0;
}
.settings-group__title--danger{ color: var(--danger); }

.setting-row{
  display:flex; align-items:center; gap:12px;
  cursor:pointer; margin:0;
}
.setting-row__label{
  font-family: var(--font-display);
  font-weight:400; font-size:17px; color:var(--ink);
}
.setting-row input[type="checkbox"]{
  appearance:none; -webkit-appearance:none;
  flex:0 0 auto;
  width:20px; height:20px; margin:0;
  border: var(--bw) solid var(--border-strong);
  border-radius:3px;
  background: var(--paper);
  cursor:pointer;
  position:relative;
  transition: background .15s ease, border-color .15s ease;
}
.setting-row input[type="checkbox"]:checked{ background: var(--teal); border-color: var(--teal); }
.setting-row input[type="checkbox"]:checked::after{
  content:"";
  position:absolute; left:6px; top:2px;
  width:5px; height:10px;
  border:solid #fff; border-width:0 1.5px 1.5px 0;
  transform: rotate(45deg);
}
.setting-row input[type="checkbox"]:disabled{ background:#F0F0F0; cursor:not-allowed; }
.setting-row input[type="checkbox"]:focus-visible{ outline:none; box-shadow: var(--shadow-blue); }

.setting-hint{
  margin:0; text-align:left;
  color:var(--dim); font-size:13px; line-height:1.5;
}
.setting-field{ display:flex; flex-direction:column; gap:8px; }
.settings-action{ width:100%; }
.settings-action--danger{ border-color: var(--danger); color: var(--danger); background: transparent; }
.settings-action--danger:hover{ background:#F5E6DD; }

/* =========================
   Consistent slim pages
   ========================= */
.modal-body{
  display:flex;
  flex-direction:column;
  gap: 12px;
  min-block-size: 240px;
}
.modal-spacer{ flex:1 1 auto; }

.domain-card{
  display:grid;
  grid-template-columns: 130px 1fr;
  gap: 8px 12px;
  align-items:center;
  background: var(--off-white);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  padding: 16px;
}
.domain-label{
  font-family: var(--font-mono); font-size:11px;
  text-transform:uppercase; letter-spacing:.1em; color:var(--muted);
}
.domain-value{
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--paper);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  word-break: break-word;
}

/* =========================
   Steps card
   ========================= */
.steps-card{
  background: var(--off-white);
  border: var(--bw) solid var(--hairline);
  border-radius: var(--r-sm);
  padding:18px;
  margin: 4px auto;
  max-width: 520px;
}
.steps-card__header{ display:flex; align-items:center; gap:8px; margin-bottom:10px; }
.steps-card__icon{ width:16px; height:16px; color: var(--cyan); stroke-width:1.5; }
.steps-card__title{
  font-family: var(--font-mono); font-size:11px;
  text-transform:uppercase; letter-spacing:.12em; color: var(--muted);
}
.steps-list{
  list-style: decimal;
  list-style-position: outside;
  padding-left: 20px;
  margin: 0;
  color: var(--dim);
  line-height: 1.6;
  text-align: left;
}
.steps-list li{ margin: 5px 0; }

.info-steps{ list-style: decimal; padding-left:20px; margin:0; color:var(--dim); line-height:1.6; }
.info-steps li{ margin:5px 0; }

.modal-note{ color: var(--dim); font-size: 13px; margin-top: 4px; text-align: center; }
.wizard-step{ display:grid; gap: 16px; }

/* =========================
   Form fields
   ========================= */
.field-set{ display:flex; flex-direction:column; gap:18px; max-width:520px; }
.field{ display:grid; gap:6px; }
.field-label{
  font-family: var(--font-mono); font-size:11px;
  text-transform:uppercase; letter-spacing:.1em; color:var(--muted);
}
.input{
  -webkit-appearance:none; appearance:none;
  font-family: var(--font-body);
  width:100%; padding:12px 14px;
  border: var(--bw) solid var(--border-strong);
  border-radius: var(--r-sm);
  background: var(--paper);
  font-size:15px; color:var(--ink);
  outline:none;
  transition: border-color .15s ease, box-shadow .15s ease;
  min-height: 44px; line-height: 1.4;
}
.input:hover{ border-color: var(--muted); }
.input:focus{ border-color: var(--cyan); box-shadow: var(--shadow-blue); }
.input::placeholder{ color:#999; }
.field-hint{ color: var(--dim); font-size:13px; min-height: 1.2em; }

.section-title{ font-family: var(--font-display); font-weight:400; color:var(--teal); font-size:18px; margin: 2px 0; }

.input[readonly], .input:read-only{ background: var(--off-white); color: var(--dim); cursor: default; }
.input[disabled]{ background:#F0F0F0; color:#999; cursor: not-allowed; }

.readonly-field{ display:grid; gap:6px; }
.pill{
  display:inline-flex; align-items:center; gap:8px; width:fit-content;
  padding:8px 14px; border-radius: var(--r-sm);
  background: var(--blue-pale);
  border: var(--bw) solid #CFE2E2;
  color: var(--teal); font-size:14px;
}
.link-btn{
  appearance:none; border:0; background:transparent; padding:0;
  font-family: var(--font-body);
  color: var(--link); font-weight:500; cursor:pointer;
  text-decoration: underline; text-underline-offset:2px;
}
.link-btn:focus-visible{ outline:none; box-shadow: var(--shadow-blue); border-radius: 3px; }

.warn-card{
  background: var(--warn-pale); color: var(--warn-ink);
  border: var(--bw) solid #EADFC2;
  border-radius: var(--r-sm);
  padding:14px; font-size:14px;
}
.ack-row{ display:flex; gap:10px; align-items:flex-start; font-size:14px; color:var(--dim); text-align:left; margin: 4px 0; }

.error-details summary{ cursor:pointer; color:var(--muted); font-size:14px; }
.error-details pre{
  background: var(--teal-deep); color:#E6E6E6;
  border: var(--bw) solid var(--teal-deep); border-radius: var(--r-sm);
  padding:14px; max-height:220px; overflow:auto; margin-top:8px;
  font-family: var(--font-mono); font-size:12px;
}

/* =========================
   Floating controls
   ========================= */
.floating-restart{
  position: static;
  background: var(--paper); color: var(--teal);
  border: var(--bw) solid var(--teal);
  border-radius: var(--r-btn);
  padding:10px 16px; font-size:14px; font-weight:500;
}
.floating-restart.hidden{ display:none !important; }
body.has-modal .floating-restart{ display:none !important; }
body.has-modal{ overflow:hidden; }

.tide-overlay{
  position:fixed;
  right:24px;
  bottom: calc(24px + var(--safe-bottom));
  display:flex;
  flex-direction:column;
  gap:8px;
  z-index:1200;
  pointer-events:none;
}
.tide-fab{
  pointer-events:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius: var(--r-btn);
  border: var(--bw) solid var(--teal);
  background: var(--paper);
  color: var(--teal);
  font-family: var(--font-body);
  font-size:14px; font-weight:500;
  cursor:pointer;
  transition: background .15s ease;
}
.tide-fab:hover{ background: var(--blue-pale); }
.tide-fab .dot{
  width:8px; height:8px; border-radius:999px;
  background: var(--cyan); display:inline-block;
}
.tide-fab svg{ stroke-width:1.5; }

/* =========================
   Toasts - dark plaques
   ========================= */
.toast-stack{
  position: fixed;
  left: 24px;
  bottom: calc(24px + var(--safe-bottom));
  z-index: 1200;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  max-width: min(360px, calc(100vw - 48px));
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--teal-deep); color: #fff;
  border-radius: var(--r-sm); padding:12px 16px; font-size:14px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  opacity:0; transform: translateY(6px);
  animation: toastIn .16s ease forwards;
}
.toast-success { background: var(--teal); }
.toast-error { background: var(--danger); }
@keyframes toastIn { to{ opacity:1; transform: translateY(0); } }

/* =========================
   Validation
   ========================= */
.input.is-invalid,
.input.error{ border-color: var(--danger); }
.input.error:focus{
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(148,56,0,.2);
}
.field-error{ color: var(--danger); font-size:13px; margin-top:4px; }

/* =========================
   Responsive
   ========================= */
@media (max-width: 480px){
  body{ padding: 16px; }
  .container{ padding: 32px 22px; }

  .brand { gap: 10px; }
  .brand-title{ font-size: clamp(21px, 6vw, 26px); }

  .modal-card{ width: calc(100% - 24px); padding: 24px 20px; }
  .kv{ grid-template-columns: 1fr; }
  .domain-card{ grid-template-columns: 1fr; }
  .modal-actions{ flex-wrap: wrap; }
  .modal-card .btn{ flex: 1 1 48%; min-width:auto; }
}

@media (max-width: 380px){
  body{ padding: 12px; }
  .container{ padding: 26px 18px; }

  .brand{ flex-direction: column; align-items: center; gap: 6px; margin-bottom: 22px; }
  .brand-logo{ width: 52px; align-self: center; }
  .brand-title{ font-size: clamp(19px, 7vw, 24px); }

  .modal-card{ width: calc(100% - 16px); padding: 20px 16px; --modal-gap: 16px; }
  .modal-title{ font-size: 19px; }
  .modal-body{ min-block-size: 0; }
  .modal-card .btn{ flex: 1 1 100%; }

  .tide-overlay{ right:16px; bottom: calc(16px + var(--safe-bottom)); }
  .toast-stack{ left: 12px; right: 12px; max-width: none; bottom: calc(74px + var(--safe-bottom)); }
}

@media (max-height: 640px){
  body{ align-items: flex-start; overflow-y: auto; }
  .modal-card{ max-height: calc(100dvh - 24px); }
  .modal-body{ min-block-size: 0; }
}

/* =========================
   Motion preferences
   ========================= */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* =========================
   A11y
   ========================= */
.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;
}

/* =========================
   CTA busy/redirect states
   ========================= */
.button.is-busy, .btn.is-busy{ pointer-events:none; opacity:.85; }
.button.is-redirecting, .btn.is-redirecting{
  background:#E6E6E6 !important;
  border-color:#E6E6E6 !important;
  color:#666 !important;
}
@keyframes pulseFade { 0%{opacity:1} 50%{opacity:.6} 100%{opacity:1} }
.button.is-redirecting .spinner-label,
.btn.is-redirecting .spinner-label{ animation:pulseFade 1.4s ease-in-out infinite; }

/* =========================
   Inputs: platform quirks
   ========================= */
input[type=number]::-webkit-outer-spin-button,
input[type=number]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }