/* ============================================================
   Cold Brew — styles
   Palette: espresso dark, copper (coffee) + ice (water) accents
   ============================================================ */

@font-face{
  font-family:'Space Grotesk';
  font-style:normal;
  font-weight:300 700;
  font-display:swap;
  src:url('fonts/space-grotesk.woff2') format('woff2');
}
@font-face{
  font-family:'JetBrains Mono';
  font-style:normal;
  font-weight:100 800;
  font-display:swap;
  src:url('fonts/jetbrains-mono.woff2') format('woff2');
}
@font-face{
  font-family:'Hanken Grotesk';
  font-style:normal;
  font-weight:300 800;
  font-display:swap;
  src:url('fonts/hanken-grotesk.woff2') format('woff2');
}
@font-face{
  font-family:'Hanken Grotesk';
  font-style:italic;
  font-weight:300 800;
  font-display:swap;
  src:url('fonts/hanken-grotesk-italic.woff2') format('woff2');
}

:root{
  --bg: #17110d;
  --panel: #221a15;
  --panel-raised: #2b2119;
  --line: #3d3128;
  --line-soft: #2f251e;
  --cream: #ede2d0;
  --cream-dim: #a89a86;
  --copper: #c17a3f;
  --copper-bright: #e0925a;
  --copper-dim: #7a5334;
  --ice: #6fc4bd;
  --ice-dim: #3d6b67;
  --warn: #d16b5a;
  --radius: 14px;
  --radius-sm: 9px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
  --sans: 'Hanken Grotesk', 'Space Grotesk', -apple-system, sans-serif;
  color-scheme: dark;

  /* v4 */
  --display-font: var(--sans);
  --data-font: var(--sans);
  --display-weight: 750;
  --ctl-radius: 99px;
  --ctl-radius-lg: 99px;
  --cta-bg: linear-gradient(180deg, var(--copper-bright), var(--copper));
  --cta-fg: #17110d;
  --nav-bg: rgba(20,14,10,0.72);
  --dial-tick: #a89a86;
  --dial-tick-minor: #4a3c30;
  --ring-track: rgba(0,0,0,0.4);
}

*{ box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html,body{ margin:0; padding:0; }
html{ overscroll-behavior-y:none; }

body{
  background:
    radial-gradient(ellipse 900px 500px at 18% -8%, rgba(193,122,63,0.11) 0%, transparent 60%),
    radial-gradient(ellipse 700px 420px at 105% 8%, rgba(111,196,189,0.07) 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  color: var(--cream);
  font-family: var(--sans);
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* film grain */
body::after{
  content:"";
  position:fixed; inset:0;
  pointer-events:none;
  z-index:90;
  opacity:.16;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.app{
  max-width:1080px;
  margin:0 auto;
  padding: calc(22px + env(safe-area-inset-top)) 20px calc(120px + env(safe-area-inset-bottom));
}

.hidden{ display:none !important; }

/* ============ header ============ */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  padding-bottom:16px;
  gap:10px;
}
h1{
  font-size: clamp(1.5rem, 5vw, 1.9rem);
  font-weight:600;
  margin:0;
  letter-spacing:-0.01em;
}
h1 span{ color:var(--ice); }
.tagline{
  font-family:var(--mono);
  font-size:0.68rem;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--cream-dim);
  margin-top:4px;
}
.rule{
  height:1px;
  background: linear-gradient(90deg, var(--copper-dim), var(--line) 40%, var(--line) 60%, var(--ice-dim));
  margin-bottom:22px;
}

/* ============ layout ============ */
.brew-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap:18px;
  align-items:start;
}
@media (min-width:900px){
  .brew-grid{ grid-template-columns: 1.1fr 0.9fr; }
  .brew-col-hero{ order:2; position:sticky; top:24px; }
  .brew-col-controls{ order:1; }
}

/* ============ panels ============ */
.panel{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow: inset 0 1px 0 rgba(237,226,208,0.03), 0 10px 30px rgba(0,0,0,0.25);
}
.panel + .panel{ margin-top:16px; }
.panel-title{
  font-family:var(--mono);
  font-size:0.64rem;
  font-weight:500;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--ice);
  margin:0 0 18px;
}

/* ============ fields & segmented ============ */
.field{ margin-bottom:20px; }
.field:last-child{ margin-bottom:0; }
.field-label{
  font-family:var(--mono);
  font-size:0.64rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--cream-dim);
  margin-bottom:9px;
  display:block;
}

.segmented{
  display:flex;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
  background:rgba(0,0,0,0.14);
}
.segmented button{
  flex:1;
  background:transparent;
  border:none;
  color:var(--cream-dim);
  font-family:var(--sans);
  font-size:0.85rem;
  font-weight:500;
  padding:11px 6px;
  cursor:pointer;
  border-right:1px solid var(--line-soft);
  transition: background .15s ease, color .15s ease;
  touch-action:manipulation;
  white-space:nowrap;
}
.segmented button:last-child{ border-right:none; }
.segmented button:hover{ color:var(--cream); background:var(--panel-raised); }
.segmented button.active{
  background:var(--copper);
  color:#17110d;
  font-weight:600;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.22), inset 0 -8px 14px rgba(0,0,0,0.14);
}
.segmented.ice button.active{ background:var(--ice); }

.custom-vol{
  display:flex;
  align-items:center;
  gap:8px;
  margin-top:10px;
}
.custom-vol-hint{ font-size:0.8rem; color:var(--cream-dim); }

input[type=number], input[type=text], input[type=email], select, textarea{
  background:var(--panel-raised);
  border:1px solid var(--line);
  color:var(--cream);
  font-family:var(--mono);
  font-size:0.88rem;
  padding:9px 11px;
  border-radius:7px;
  outline:none;
  transition:border-color .15s ease;
}
input:focus-visible, select:focus-visible, textarea:focus-visible{ border-color:var(--copper); }
input[type=number]{ width:92px; }
input[type=text], input[type=email], textarea{ width:100%; font-family:var(--sans); font-size:0.95rem; }
textarea{ resize:vertical; line-height:1.5; }
select{ font-family:var(--sans); }

.bean-row{ display:flex; gap:9px; align-items:center; flex-wrap:wrap; }
.bean-row .per{ font-size:0.82rem; color:var(--cream-dim); }

button:focus-visible, .segmented button:focus-visible{
  outline:2px solid var(--copper-bright);
  outline-offset:-2px;
}

/* ============ hero ============ */
.hero{
  background: linear-gradient(165deg, var(--panel) 0%, #1d1610 100%);
  text-align:center;
  padding:24px 20px 20px;
}

.dial-svg{ width:min(232px, 62vw); height:auto; margin:0 auto; display:block; }
#needle{
  transform-origin:120px 116px;
  transition: transform .55s cubic-bezier(.3,1.4,.4,1);
}
.dial-brand{
  font-family:var(--mono);
  font-size:8px;
  letter-spacing:0.3em;
  fill:rgba(237,226,208,0.32);
}
.dial-caption{
  margin-top:2px;
  font-family:var(--mono);
  font-size:0.74rem;
  letter-spacing:0.03em;
}
.dial-caption-strong{ color:var(--copper-bright); font-weight:600; }
.dial-caption-dim{ color:var(--cream-dim); }
.dial-caption-dim::before{ content:" · "; color:var(--line); }

.hero-primary{
  display:flex;
  align-items:stretch;
  justify-content:center;
  gap:0;
  margin:20px 0 16px;
}
.hp-cell{ flex:1; min-width:0; }
.hp-divider{ width:1px; background:linear-gradient(180deg, transparent, var(--line) 30%, var(--line) 70%, transparent); }
.hp-value{
  font-family:var(--sans);
  font-size: clamp(2.3rem, 9vw, 3rem);
  font-weight:700;
  letter-spacing:-0.02em;
  line-height:1;
  font-variant-numeric: tabular-nums;
}
.hp-value.copper{ color:var(--copper-bright); }
.hp-value.ice{ color:var(--ice); }
.hp-unit{
  font-size:0.42em;
  font-weight:500;
  margin-left:4px;
  color:var(--cream-dim);
  letter-spacing:0;
}
.hp-label{
  font-family:var(--mono);
  font-size:0.68rem;
  color:var(--cream-dim);
  margin-top:7px;
  letter-spacing:0.04em;
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:10px;
  overflow:hidden;
}
.hs-cell{ background:var(--panel); padding:11px 6px 10px; }
.hs-label{
  font-family:var(--mono);
  font-size:0.58rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--cream-dim);
  margin-bottom:5px;
}
.hs-value{
  font-family:var(--mono);
  font-size:0.92rem;
  font-weight:600;
  font-variant-numeric: tabular-nums;
}
.hs-value.ice-t{ color:var(--ice); }
.hs-value.copper-t{ color:var(--copper-bright); }
@media (max-width:380px){
  .hero-stats{ grid-template-columns:repeat(2, 1fr); }
}

.note{
  margin-top:14px;
  padding:12px 14px;
  background: rgba(111,196,189,0.08);
  border-left:2px solid var(--ice);
  border-radius:0 6px 6px 0;
  font-size:0.82rem;
  line-height:1.5;
  text-align:left;
}
.note.warn{
  background: rgba(209,107,90,0.08);
  border-left-color: var(--warn);
}
.hero-tip{
  margin-top:14px;
  font-family:var(--mono);
  font-size:0.66rem;
  line-height:1.6;
  color:var(--cream-dim);
  opacity:0.85;
}

/* ============ CTA ============ */
.cta{
  width:100%;
  margin-top:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  background:linear-gradient(180deg, var(--copper-bright), var(--copper));
  color:#17110d;
  border:none;
  border-radius:12px;
  padding:15px 20px;
  font-family:var(--sans);
  font-size:1rem;
  font-weight:600;
  letter-spacing:0.01em;
  cursor:pointer;
  box-shadow: 0 6px 20px rgba(193,122,63,0.25), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: transform .1s ease, box-shadow .15s ease, filter .15s ease;
  touch-action:manipulation;
}
.cta svg{ width:19px; height:19px; }
.cta:hover{ filter:brightness(1.05); }
.cta:active{ transform:scale(0.985); box-shadow:0 3px 10px rgba(193,122,63,0.2); }

.method{
  margin-top:18px;
  border-top:1px solid var(--line-soft);
  padding-top:14px;
}
.method summary{
  font-family:var(--mono);
  font-size:0.66rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--cream-dim);
  cursor:pointer;
  list-style-position:outside;
}
.method p{
  font-size:0.78rem;
  line-height:1.7;
  color:var(--cream-dim);
  margin:10px 0 0;
}

/* ============ tab bar ============ */
.tabbar{
  position:fixed;
  left:50%;
  transform:translateX(-50%);
  bottom: calc(14px + env(safe-area-inset-bottom));
  z-index:40;
  display:flex;
  gap:4px;
  background:rgba(34,26,21,0.88);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:99px;
  padding:5px;
  box-shadow: 0 10px 34px rgba(0,0,0,0.5);
}
.tabbar button{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 22px;
  border-radius:99px;
  border:none;
  background:transparent;
  color:var(--cream-dim);
  font-family:var(--sans);
  font-size:0.9rem;
  font-weight:500;
  cursor:pointer;
  transition: background .18s ease, color .18s ease;
  touch-action:manipulation;
}
.tabbar button svg{ width:17px; height:17px; }
.tabbar button.active{
  background:var(--copper);
  color:#17110d;
  font-weight:600;
}
.tabbar .badge{
  min-width:17px;
  height:17px;
  padding:0 4px;
  border-radius:99px;
  background:var(--ice);
  color:#17110d;
  font-family:var(--mono);
  font-size:0.62rem;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* ============ mini readout (sticky) ============ */
.mini-readout{
  position:fixed;
  top:0; left:0; right:0;
  z-index:30;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:9px;
  padding: calc(10px + env(safe-area-inset-top)) 14px 10px;
  background:rgba(23,17,13,0.85);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
  font-family:var(--mono);
  font-size:0.76rem;
  font-variant-numeric:tabular-nums;
  transform:translateY(-105%);
  transition:transform .28s ease;
}
.mini-readout.show{ transform:translateY(0); }
.mr-item.copper{ color:var(--copper-bright); }
.mr-item.ice{ color:var(--ice); }
.mr-sep{ color:var(--line); }
@media (min-width:900px){ .mini-readout{ display:none; } }

/* ============ views ============ */
.view{ display:none; }
.view.active{ display:block; animation: viewIn .22s ease; }
@keyframes viewIn{
  from{ opacity:0; transform:translateY(5px); }
  to{ opacity:1; transform:none; }
}

/* ============ log ============ */
.log-wrap{ max-width:640px; margin:0 auto; }
.section-title{
  font-family:var(--mono);
  font-size:0.64rem;
  font-weight:500;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--ice);
  margin:4px 0 12px;
}
#historySection .section-title{ color:var(--copper-bright); }
#activeSection{ margin-bottom:26px; }

.batch{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px 18px;
  margin-bottom:12px;
  box-shadow: inset 0 1px 0 rgba(237,226,208,0.03);
}
.batch-top{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:10px;
}
.batch h3{
  margin:0;
  font-size:1.02rem;
  font-weight:600;
  letter-spacing:-0.01em;
  overflow-wrap:anywhere;
}
.tag{
  font-family:var(--mono);
  font-size:0.58rem;
  font-weight:600;
  letter-spacing:0.12em;
  text-transform:uppercase;
  padding:4px 9px;
  border-radius:99px;
  white-space:nowrap;
  flex-shrink:0;
}
.tag.steeping{ background:rgba(111,196,189,0.13); color:var(--ice); }
.tag.window{ background:rgba(224,146,90,0.16); color:var(--copper-bright); }
.tag.over{ background:rgba(209,107,90,0.15); color:var(--warn); }

.batch-meta{
  font-family:var(--mono);
  font-size:0.7rem;
  color:var(--cream-dim);
  margin-top:6px;
  letter-spacing:0.02em;
}

.progress{
  margin-top:12px;
  height:5px;
  border-radius:99px;
  background:rgba(0,0,0,0.35);
  border:1px solid var(--line-soft);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  border-radius:99px;
  background:linear-gradient(90deg, var(--ice-dim), var(--ice));
  transition:width .4s ease;
}
.progress-fill.full{ background:linear-gradient(90deg, var(--copper-dim), var(--copper-bright)); }

.batch-window{
  font-family:var(--mono);
  font-size:0.72rem;
  color:var(--cream);
  margin-top:9px;
}
.batch-window .eta{ color:var(--ice); }
.batch-window .eta.ready{ color:var(--copper-bright); }

.batch-actions{
  display:flex;
  gap:8px;
  margin-top:13px;
}

.btn{
  border:none;
  border-radius:9px;
  font-family:var(--sans);
  font-size:0.86rem;
  font-weight:600;
  padding:10px 16px;
  cursor:pointer;
  transition: filter .15s ease, transform .1s ease, background .15s ease, color .15s ease;
  touch-action:manipulation;
}
.btn:active{ transform:scale(0.97); }
.btn.primary{ background:var(--copper); color:#17110d; }
.btn.primary:hover{ filter:brightness(1.08); }
.btn.ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--cream-dim);
}
.btn.ghost:hover{ color:var(--cream); background:var(--panel-raised); }
.btn.ghost.danger:hover{ color:var(--warn); border-color:rgba(209,107,90,0.4); }
.btn.ghost.armed{ color:var(--warn); border-color:var(--warn); background:rgba(209,107,90,0.1); }
.btn.small{ font-size:0.8rem; padding:8px 13px; }

/* history cards */
details.batch{ padding:0; }
details.batch summary{
  list-style:none;
  cursor:pointer;
  padding:15px 18px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
}
details.batch summary::-webkit-details-marker{ display:none; }
details.batch .done-body{
  padding:2px 18px 16px;
  border-top:1px solid var(--line-soft);
}
details.batch[open] summary{ padding-bottom:12px; }
.done-body .notes{
  font-size:0.88rem;
  line-height:1.55;
  color:var(--cream);
  margin:12px 0 2px;
  overflow-wrap:anywhere;
}
.done-body .notes.placeholder{ color:var(--cream-dim); font-style:italic; }
.done-body .batch-meta{ margin-top:10px; }
.done-body .batch-actions{ margin-top:14px; }

.beans{ display:flex; gap:2px; flex-shrink:0; }
.bean{ width:15px; height:15px; }
.bean ellipse{ fill:var(--line); }
.bean.filled ellipse{ fill:var(--copper-bright); }
.bean path{ stroke:var(--panel); stroke-width:1.8; fill:none; }

/* rating input */
.rating{ display:flex; gap:6px; margin:4px 0 18px; }
.rating button{
  background:transparent;
  border:none;
  padding:4px;
  cursor:pointer;
  touch-action:manipulation;
}
.rating .bean{ width:27px; height:27px; }
.rating button .bean ellipse{ transition: fill .12s ease; }

/* empty state */
.empty{
  text-align:center;
  padding:56px 20px 40px;
  color:var(--cream-dim);
}
.empty svg{ width:72px; height:72px; opacity:0.45; margin-bottom:16px; }
.empty p{ margin:4px 0; font-size:0.95rem; }
.empty .empty-sub{ font-size:0.8rem; line-height:1.6; max-width:290px; margin:6px auto 0; }
.empty em{ color:var(--copper-bright); font-style:normal; }

/* ============ dialogs / sheets ============ */
dialog.sheet{
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--cream);
  border-radius:18px 18px 0 0;
  padding:14px 22px calc(22px + env(safe-area-inset-bottom));
  width:100%;
  max-width:560px;
  margin: auto auto 0;
  box-shadow: 0 -14px 50px rgba(0,0,0,0.5);
}
dialog.sheet::backdrop{
  background:rgba(10,7,5,0.55);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
}
dialog.sheet[open]{ animation: sheetUp .3s cubic-bezier(.2,.9,.3,1); }
@keyframes sheetUp{
  from{ transform:translateY(40px); opacity:0.4; }
  to{ transform:none; opacity:1; }
}
@media (min-width:700px){
  dialog.sheet{
    border-radius:16px;
    margin:auto;
    padding-bottom:22px;
  }
  dialog.sheet[open]{ animation: viewIn .22s ease; }
  .sheet-handle{ display:none; }
}
.sheet-handle{
  width:40px;
  height:4px;
  border-radius:99px;
  background:var(--line);
  margin:0 auto 16px;
}
.sheet-title{
  margin:4px 0 8px;
  font-size:1.15rem;
  font-weight:600;
  letter-spacing:-0.01em;
}
.sheet-summary{
  font-family:var(--mono);
  font-size:0.74rem;
  color:var(--cream-dim);
  line-height:1.7;
  margin:0 0 18px;
}
.sheet-summary strong{ color:var(--copper-bright); font-weight:600; }
.sheet-summary .w{ color:var(--ice); font-weight:600; }
.sheet-actions{
  display:flex;
  justify-content:flex-end;
  gap:10px;
  margin-top:20px;
}

/* ============ misc ============ */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration:0.01ms !important;
    transition-duration:0.01ms !important;
  }
}

/* ============================================================
   v4 additions — themes, chips, tabs
   Ported from Cold Brew v4.dc.html (applyTheme/chipStyle/tabStyle)
   ============================================================ */

@keyframes cardIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes ringPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }
@keyframes chipBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ============ themes ============ */
html[data-theme='crema']{
  --bg: #f4ecdd; --panel: #fbf5e9; --panel-raised: #fffaf0;
  --line: rgba(52,38,26,0.2); --line-soft: rgba(52,38,26,0.1);
  --cream: #32261a; --cream-dim: #82705c;
  --copper: #b06a2f; --copper-bright: #9d5c24; --copper-dim: #c99e75;
  --ice: #22766f; --ice-dim: #7fb5b0; --warn: #b0522f;
  --nav-bg: rgba(251,245,233,0.85);
  --cta-bg: linear-gradient(180deg, #c17a3f, #a4602b); --cta-fg: #fff6e8;
  --ctl-radius: 12px; --ctl-radius-lg: 14px;
  --dial-tick: #6b5a46; --dial-tick-minor: #c4b49c;
  --ring-track: rgba(52,38,26,0.12);
  color-scheme: light;
}
html[data-theme='crema'] body{
  background:
    radial-gradient(ellipse 1000px 600px at 12% -10%, rgba(193,122,63,0.16) 0%, transparent 60%),
    radial-gradient(ellipse 800px 500px at 100% -5%, rgba(34,118,111,0.1) 0%, transparent 55%),
    #f4ecdd;
  background-attachment: fixed;
}
html[data-theme='midnight']{
  --bg: #0b1014; --panel: #121a20; --panel-raised: #1a242c;
  --line: #2a3740; --line-soft: #1f2a32;
  --cream: #e2eaee; --cream-dim: #8a99a5;
  --copper: #d98d55; --copper-bright: #e8a06a; --copper-dim: #8a5c38;
  --ice: #7fd4cf; --ice-dim: #3d6b67; --warn: #e07856;
  --nav-bg: rgba(11,16,20,0.78);
  --cta-bg: linear-gradient(180deg, #8fe0da, #4da8a1); --cta-fg: #0b1014;
  --ctl-radius: 8px; --ctl-radius-lg: 10px;
  --dial-tick: #93a3ad; --dial-tick-minor: #39464f;
  --ring-track: rgba(255,255,255,0.06);
  color-scheme: dark;
}
html[data-theme='midnight'] body{
  background:
    radial-gradient(ellipse 1000px 600px at 12% -10%, rgba(217,141,85,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 800px 500px at 100% -5%, rgba(127,212,207,0.09) 0%, transparent 55%),
    #0b1014;
  background-attachment: fixed;
}

/* ============ chips (segmented choices) ============ */
.chip{
  padding:10px 18px;
  border-radius:var(--ctl-radius);
  border:1px solid var(--line);
  background:transparent;
  color:var(--cream-dim);
  font-family:var(--sans);
  font-size:0.85rem;
  cursor:pointer;
  transition:all 0.25s ease;
  touch-action:manipulation;
}
.chip:hover{ border-color:rgba(150,140,125,0.5); }
.chip.tone-ice:hover{ border-color:rgba(111,196,189,0.5); }
.chip.active{
  background:rgba(193,122,63,0.15);
  border-color:rgba(224,146,90,0.55);
  color:var(--copper-bright);
}
.chip.active.tone-ice{
  background:rgba(111,196,189,0.12);
  border-color:rgba(111,196,189,0.5);
  color:var(--ice);
}
html[data-theme='crema'] .chip{ background:rgba(255,255,255,0.45); }
html[data-theme='crema'] .chip.active{
  background:var(--copper); border-color:transparent; color:#fff6e8; font-weight:600;
}
html[data-theme='crema'] .chip.active.tone-ice{ background:var(--ice); color:#f4f9f8; }
html[data-theme='midnight'] .chip{ background:rgba(226,234,238,0.04); }
html[data-theme='midnight'] .chip.active{
  background:var(--copper); border-color:transparent; color:#0b1014; font-weight:600;
}
html[data-theme='midnight'] .chip.active.tone-ice{ background:var(--ice); color:#0b1014; }

/* vessel rows are chips stretched full-width */
.vessel-row{
  flex:1; display:flex; align-items:center; justify-content:space-between;
  gap:12px; padding:12px 18px; width:100%;
}
.vessel-del{
  width:42px;
  border-radius:var(--ctl-radius);
  border:1px solid var(--line-soft);
  background:transparent;
  color:var(--cream-dim);
  font-size:1rem;
  cursor:pointer;
  transition:all 0.2s ease;
}
.vessel-del:hover{ color:var(--warn); border-color:var(--warn); }
.add-vessel{
  margin-top:10px;
  padding:10px 18px;
  border-radius:var(--ctl-radius);
  border:1px dashed var(--line);
  background:transparent;
  color:var(--cream-dim);
  font-family:var(--sans);
  font-size:0.82rem;
  cursor:pointer;
  transition:all 0.2s ease;
}
.add-vessel:hover{ color:var(--cream); border-color:var(--cream-dim); }

/* ============ v4 nav tabs ============ */
.tab{
  display:flex; align-items:center; gap:7px;
  padding:10px 20px; border-radius:99px; border:none;
  background:transparent; color:var(--cream-dim);
  font-family:var(--sans); font-size:0.85rem; font-weight:600;
  cursor:pointer; transition:all 0.25s ease;
  touch-action:manipulation;
}
.tab.active{ background:rgba(193,122,63,0.2); color:var(--copper-bright); }
html[data-theme='crema'] .tab.active{ background:var(--copper); color:#fff6e8; }
html[data-theme='midnight'] .tab.active{ background:var(--ice); color:#0b1014; }

/* ============ header controls ============ */
.steep-chip{
  display:flex; align-items:center; gap:7px;
  background:rgba(111,196,189,0.08);
  border:1px solid rgba(111,196,189,0.3);
  border-radius:var(--ctl-radius);
  padding:7px 15px; cursor:pointer;
  font-family:var(--data-font); font-size:0.68rem;
  letter-spacing:0.1em; color:var(--ice); text-transform:uppercase;
  transition:background 0.25s ease;
}
.steep-chip:hover{ background:rgba(111,196,189,0.16); }
.icon-btn{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px; flex-shrink:0;
  border-radius:99px; border:1px solid var(--line);
  background:var(--panel); color:var(--cream-dim);
  cursor:pointer; transition:all 0.25s ease;
}
.icon-btn:hover{ color:var(--cream); border-color:var(--cream-dim); }

/* v4 rounded form controls */
.ctl{
  width:100%;
  font-family:var(--sans);
  font-size:0.95rem;
  padding:12px 14px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--ctl-radius);
  color:var(--cream);
}