/* Rently v2 · "Thermal" design system — core tokens, base, shell, components.
   Page-specific styles live in /static/v2/pages/*.css and only load where used. */

@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Geist"; src: url("../fonts/geist-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("../fonts/geist-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("../fonts/geist-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
/* Editorial accent only: never block or reflow for it. */
@font-face { font-family: "Instrument Serif"; src: url("../fonts/instrument-serif-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: optional; }
@font-face { font-family: "Instrument Serif"; src: url("../fonts/instrument-serif-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: optional; }
/* Metric-matched fallback keeps layout shift near zero while Geist swaps in. */
@font-face { font-family: "Geist Fallback"; src: local("Arial"); size-adjust: 104%; ascent-override: 92%; descent-override: 22%; line-gap-override: 0%; }

/* ---------- 1. Tokens ---------- */
:root {
  /* Type */
  --font-sans: "Geist", "Geist Fallback", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-display: "Instrument Serif", ui-serif, Georgia, serif;
  --text-2xs: 0.6875rem;  /* 11 */
  --text-xs: 0.75rem;     /* 12 */
  --text-sm: 0.8125rem;   /* 13 */
  --text-base: 0.9375rem; /* 15 */
  --text-md: 1.0625rem;   /* 17 */
  --text-lg: 1.25rem;     /* 20 */
  --text-xl: clamp(1.375rem, 1.1rem + 1vw, 1.75rem);
  --text-2xl: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem);
  --text-3xl: clamp(2.25rem, 1.6rem + 2.6vw, 3.5rem);
  --text-display: clamp(4rem, 2.8rem + 6vw, 7.5rem);
  --leading-tight: 1.15;
  --leading-snug: 1.35;
  --leading-body: 1.55;
  --tracking-label: 0.08em;
  --font-label: 500 var(--text-2xs) / 1.3 var(--font-mono); /* mono uppercase labels: pair with .label-mono or tracking + uppercase */

  /* Space (4px base) */
  --s-0: 0.125rem; --s-1: 0.25rem; --s-2: 0.5rem; --s-3: 0.75rem; --s-4: 1rem;
  --s-5: 1.25rem; --s-6: 1.5rem; --s-8: 2rem; --s-10: 2.5rem; --s-12: 3rem; --s-16: 4rem; --s-20: 5rem;
  --gutter: clamp(1rem, 0.6rem + 1.8vw, 2rem);
  --content-max: 76rem;
  --content-narrow: 34rem;

  /* Radii */
  --r-xs: 4px; --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-xl: 20px; --r-pill: 999px;
  --r-control: var(--r-md); /* buttons, inputs, inner wells */
  --r-card: var(--r-lg);    /* cards, tables, stat strips */

  /* Targets */
  --tap: 2.75rem; /* 44px minimum on touch */

  /* Motion */
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-1: 120ms; --dur-2: 200ms; --dur-3: 320ms;

  /* Layers */
  --z-sticky: 20; --z-nav: 40; --z-menu: 60; --z-sheet: 80;

  --topbar-h: 3.5rem;
  --tabbar-h: 4rem;

  /* Brand (scheme-independent; v1 "volt-grid" mark and rounded-r/logo.svg) */
  --brand-a: #d6ff4a;
  --brand-b: #7cf0c2;
  --brand-ink: #10160a;

  color-scheme: dark;
  /* Graphite (dark, default) */
  --bg: #0b0c0e;
  --surface-1: #121418;
  --surface-2: #181b20;
  --surface-3: #20242b;
  --overlay: rgba(11, 12, 14, 0.72);
  --line: #23272e;
  --line-strong: #343941;
  --line-input: #626a76; /* ≥3:1 on every surface (WCAG 1.4.11) */
  --ink: #eef0f3;
  --ink-2: #a9b0bb;
  --ink-3: #8a929f;
  --accent: #c8f169;
  --accent-hover: #d6f78a;
  --accent-line: transparent;
  --on-accent: #12160a;
  --accent-ink: #d2f48a;
  --accent-wash: rgba(200, 241, 105, 0.12);
  --cool: #74bdff;   --cool-wash: rgba(116, 189, 255, 0.13);
  --heat: #ff9c61;   --heat-wash: rgba(255, 156, 97, 0.13);
  --ok: #52d6a0;     --ok-wash: rgba(82, 214, 160, 0.13);
  --warn: #f2c55c;   --warn-wash: rgba(242, 197, 92, 0.14);
  --bad: #ff7272;    --bad-wash: rgba(255, 114, 114, 0.14);
  --focus: #c8f169;
  --e-1: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 1px 2px rgba(0, 0, 0, 0.4);
  --e-2: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 8px 24px -8px rgba(0, 0, 0, 0.6);
  --e-3: 0 24px 64px -16px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--line);
}

/* Paper (light) */
:root[data-scheme="light"] {
  color-scheme: light;
  --bg: #f6f5f1;
  --surface-1: #ffffff;
  --surface-2: #f1f0eb;
  --surface-3: #e8e6df;
  --overlay: rgba(246, 245, 241, 0.78);
  --line: #e2e0d8;
  --line-strong: #cbc8be;
  --line-input: #80868f;
  --ink: #15171a;
  --ink-2: #484e57;
  --ink-3: #5a616c;
  --accent: #c8f169;
  --accent-hover: #bde650;
  --accent-line: #9cc53a;
  --on-accent: #12160a;
  --accent-ink: #46660a;
  --accent-wash: rgba(110, 160, 20, 0.12);
  /* All ≥4.5:1 on surface-1/2/3 and on their own wash. */
  --cool: #1a5fb8;   --cool-wash: rgba(29, 102, 196, 0.09);
  --heat: #a8480f;   --heat-wash: rgba(184, 77, 18, 0.09);
  --ok: #0e7049;     --ok-wash: rgba(16, 120, 79, 0.09);
  --warn: #855c00;   --warn-wash: rgba(180, 130, 0, 0.12);
  --bad: #b52b2b;    --bad-wash: rgba(194, 47, 47, 0.08);
  --focus: #46660a;
  --e-1: 0 1px 2px rgba(20, 22, 26, 0.06), 0 0 0 1px var(--line);
  --e-2: 0 10px 28px -12px rgba(20, 22, 26, 0.18), 0 0 0 1px var(--line);
  --e-3: 0 28px 64px -20px rgba(20, 22, 26, 0.3), 0 0 0 1px var(--line);
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--topbar-h) + var(--s-4)); }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--text-base) / var(--leading-body) var(--font-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
}
img, svg, video, canvas { display: block; max-width: 100%; }
svg { flex-shrink: 0; }
h1, h2, h3, h4, p, dl, dd, figure, blockquote { margin: 0; }
h1, h2, h3, h4 { font-weight: 600; line-height: var(--leading-tight); letter-spacing: -0.015em; text-wrap: balance; }
h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-lg); }
h3 { font-size: var(--text-md); }
p { text-wrap: pretty; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 0.2em; }
a:hover { text-decoration-color: currentColor; }
button, input, select, textarea { font: inherit; color: inherit; letter-spacing: inherit; }
button { cursor: pointer; }
::selection { background: var(--accent); color: var(--on-accent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: var(--r-xs); }
main:focus-visible { outline: none; } /* skip-link target */
code, kbd, samp, pre { font-family: var(--font-mono); font-size: 0.92em; }
hr { border: 0; border-top: 1px solid var(--line); margin: var(--s-6) 0; }
[hidden] { display: none !important; }
.hidden { display: none !important; }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.label-mono { font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; }
.muted { color: var(--ink-2); }
.subtle { color: var(--ink-3); }
.num, .mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.nowrap { white-space: nowrap; }
.desktop-only { display: none; }
@media (min-width: 60em) { .desktop-only { display: revert; } .mobile-only { display: none !important; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; scroll-behavior: auto !important; }
  .card-interactive:hover, .btn:active { transform: none !important; }
}

/* Disclosures: one consistent summary across pages. */
summary { cursor: pointer; width: fit-content; min-height: 2rem; padding-block: var(--s-1); color: var(--ink-2); font-size: var(--text-sm); transition: color var(--dur-1); }
summary:hover, details[open] > summary { color: var(--ink); }
summary::marker { color: var(--ink-3); }

/* ---------- 3. Shell ---------- */
.skip-link { position: absolute; left: var(--s-3); top: -3rem; z-index: 100; padding: var(--s-2) var(--s-4); border-radius: var(--r-sm); background: var(--accent); color: var(--on-accent); font-weight: 600; text-decoration: none; transition: top var(--dur-2) var(--ease-out); }
.skip-link:focus { top: var(--s-3); }

.beta-bar {
  display: flex; align-items: center; justify-content: center; gap: var(--s-2) var(--s-3); flex-wrap: wrap;
  min-height: 2rem; padding: var(--s-1) var(--gutter);
  background: var(--accent); color: var(--on-accent);
  font: 500 var(--text-xs) / 1.3 var(--font-mono); letter-spacing: 0.02em; text-align: center;
}
.beta-bar a { color: inherit; font-weight: 600; }
.beta-bar .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.6; }

.topbar {
  position: sticky; top: 0; z-index: var(--z-nav);
  height: var(--topbar-h);
  display: flex; align-items: center; gap: var(--s-4);
  padding: 0 var(--gutter);
  background: var(--overlay);
  -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: var(--s-2); text-decoration: none; font-weight: 600; letter-spacing: -0.01em; white-space: nowrap; }
/* Original Rently marks, as in v1: logo.svg in the top bar, the gradient "R" tile on sign-in. */
.brand-mark { display: block; flex: none; width: 2.125rem; height: 2.125rem; }
.mark { flex: none; display: grid; place-items: center; width: 1.7rem; height: 1.7rem; border-radius: 7px; background: linear-gradient(135deg, var(--brand-a), var(--brand-b)); color: var(--brand-ink); font-size: 0.85rem; font-weight: 700; }
.brand-name small { margin-left: var(--s-1); color: var(--ink-3); font: var(--font-label); line-height: 1; letter-spacing: var(--tracking-label); text-transform: uppercase; }

.desktop-nav { display: none; align-items: center; gap: var(--s-1); margin-left: var(--s-4); }
.nav-link {
  position: relative; display: inline-flex; align-items: center; gap: var(--s-1);
  height: 2.25rem; padding: 0 var(--s-3); border: 0; border-radius: var(--r-sm); background: none;
  color: var(--ink-2); font-size: var(--text-sm); font-weight: 500; text-decoration: none;
  transition: color var(--dur-1), background-color var(--dur-1);
}
.nav-link:hover { color: var(--ink); background: var(--surface-2); }
.nav-link[aria-current="page"] { color: var(--ink); }
.nav-link[aria-current="page"]::after {
  content: ""; position: absolute; left: var(--s-3); right: var(--s-3); bottom: calc((var(--topbar-h) - 2.25rem) / -2);
  height: 2px; border-radius: 2px; background: var(--accent);
}
.nav-link .chev { width: 0.75rem; height: 0.75rem; transition: transform var(--dur-2) var(--ease-out); }
.nav-link[aria-expanded="true"] .chev { transform: rotate(180deg); }

.topbar-end { display: flex; align-items: center; gap: var(--s-2); margin-left: auto; }

.nav-menu { position: relative; }
.nav-menu-panel {
  position: absolute; top: calc(100% + var(--s-2)); left: 0; z-index: var(--z-menu);
  min-width: 13rem; padding: var(--s-1);
  background: var(--surface-1); border-radius: var(--r-md); box-shadow: var(--e-3);
  animation: pop-in var(--dur-2) var(--ease-out);
}
.nav-menu-panel.align-end { left: auto; right: 0; }
.nav-menu-panel a, .nav-menu-panel button {
  display: flex; align-items: center; gap: var(--s-2); width: 100%;
  padding: var(--s-2) var(--s-3); border: 0; border-radius: var(--r-sm); background: none;
  color: var(--ink); font-size: var(--text-sm); text-align: left; text-decoration: none;
}
.nav-menu-panel a:hover, .nav-menu-panel button:hover { background: var(--surface-2); }
.nav-menu-panel a[aria-current="page"] { background: var(--accent-wash); color: var(--accent-ink); font-weight: 600; }
.nav-menu-panel hr { margin: var(--s-1) 0; }
.nav-menu-panel .menu-label { padding: var(--s-2) var(--s-3) var(--s-1); color: var(--ink-3); font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; }
@keyframes pop-in { from { opacity: 0; transform: translateY(-4px) scale(0.98); } }

.avatar {
  display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--surface-3); color: var(--ink); font-size: var(--text-xs); font-weight: 600; text-transform: uppercase;
}
.user-btn { display: inline-flex; align-items: center; gap: var(--s-2); padding: var(--s-0) var(--s-2) var(--s-0) var(--s-0); height: auto; }

/* Mobile bottom tab bar */
.tabbar {
  position: fixed; inset: auto 0 0 0; z-index: var(--z-nav);
  display: grid; grid-auto-flow: column; grid-auto-columns: 1fr;
  height: calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--overlay);
  -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px);
  border-top: 1px solid var(--line);
}
.tab {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  border: 0; background: none; color: var(--ink-3); text-decoration: none;
  font-size: var(--text-2xs); font-weight: 500; -webkit-tap-highlight-color: transparent;
}
.tab svg { width: 1.375rem; height: 1.375rem; transition: transform var(--dur-2) var(--ease-out); }
.tab[aria-current="page"], .tab[aria-expanded="true"] { color: var(--ink); }
.tab[aria-current="page"] svg { color: var(--accent-ink); }
.tab:active svg { transform: scale(0.9); }

/* Mobile sheet (#mnav, toggled by app.js via .open) */
.nav-drawer {
  position: fixed; left: var(--s-2); right: var(--s-2); bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + var(--s-2));
  z-index: var(--z-sheet);
  display: grid; gap: var(--s-0); padding: var(--s-2);
  max-height: 70dvh; overflow-y: auto;
  background: var(--surface-1); border-radius: var(--r-lg); box-shadow: var(--e-3);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
}
.nav-drawer.open { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.nav-drawer a, .nav-drawer button {
  display: flex; align-items: center; gap: var(--s-3); width: 100%; min-height: 3rem;
  padding: 0 var(--s-3); border: 0; border-radius: var(--r-md); background: none;
  color: var(--ink); font-size: var(--text-md); text-align: left; text-decoration: none;
}
.nav-drawer a:hover, .nav-drawer button:hover { background: var(--surface-2); }
.nav-drawer a[aria-current="page"] { background: var(--accent-wash); color: var(--accent-ink); font-weight: 600; }
.nav-drawer .drawer-label { padding: var(--s-3) var(--s-3) var(--s-1); color: var(--ink-3); font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; }
.nav-drawer form { margin: 0; }

.wrap {
  width: 100%; max-width: var(--content-max); margin: 0 auto;
  padding: var(--s-6) var(--gutter) var(--s-12);
}
.site-footer {
  max-width: var(--content-max); margin: 0 auto;
  padding: var(--s-6) var(--gutter) calc(var(--tabbar-h) + env(safe-area-inset-bottom) + var(--s-6));
  display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-6); justify-content: space-between;
  border-top: 1px solid var(--line); color: var(--ink-3); font: var(--text-xs)/1.5 var(--font-mono);
}
.site-footer a { color: var(--ink-2); }

@media (min-width: 60em) {
  .desktop-nav { display: flex; }
  .tabbar, .nav-drawer, .nav-toggle { display: none !important; }
  .wrap { padding-top: var(--s-10); padding-bottom: var(--s-16); }
  .site-footer { padding-bottom: var(--s-8); }
}

/* ---------- 4. Page header ---------- */
.page-head { display: grid; gap: var(--s-4); margin-bottom: var(--s-8); }
.eyebrow, .kicker {
  display: inline-flex; align-items: center; gap: var(--s-2);
  color: var(--ink-3); font: var(--font-label); line-height: 1; letter-spacing: var(--tracking-label); text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 2px; background: var(--accent); }
.page-title { font-size: var(--text-3xl); font-weight: 600; letter-spacing: -0.03em; }
.page-title em { font: italic 400 1.08em/1 var(--font-display); letter-spacing: -0.01em; color: var(--ink-2); }
.page-sub { max-width: 60ch; color: var(--ink-2); font-size: var(--text-md); }
.page-actions { display: flex; flex-wrap: wrap; gap: var(--s-2); }
@media (min-width: 48em) {
  .page-head { grid-template-columns: 1fr auto; align-items: end; }
  .page-head > :not(.page-actions) { grid-column: 1; }
  .page-actions { grid-column: 2; grid-row: 1 / span 3; align-self: end; }
}
.section { margin-top: var(--s-12); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-4); margin-bottom: var(--s-4); }
.section-title { font-size: var(--text-lg); }
.section-head .count, .count { color: var(--ink-3); font: 500 var(--text-xs)/1 var(--font-mono); }

/* ---------- 5. Buttons ---------- */
.btn, button.primary, button.full, .wrap form button:not([class]), .auth-card form button:not([class]) {
  --btn-bg: var(--surface-2); --btn-fg: var(--ink); --btn-line: var(--line-strong);
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 2.5rem; padding: 0 var(--s-4);
  border: 1px solid var(--btn-line); border-radius: var(--r-control);
  background: var(--btn-bg); color: var(--btn-fg);
  font-size: var(--text-sm); font-weight: 600; line-height: 1; white-space: nowrap; text-decoration: none;
  cursor: pointer; user-select: none; -webkit-tap-highlight-color: transparent;
  transition: background-color var(--dur-1), border-color var(--dur-1), color var(--dur-1), transform var(--dur-1) var(--ease-out), box-shadow var(--dur-2);
}
.btn:hover, .wrap form button:not([class]):hover { --btn-bg: var(--surface-3); }
.btn:active, button.primary:active, button.full:active, .wrap form button:not([class]):active { transform: translateY(1px) scale(0.985); }
.btn-primary, button.primary, button.full, .auth-card form button:not([class]) {
  --btn-bg: var(--accent); --btn-fg: var(--on-accent); --btn-line: var(--accent-line);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset, 0 6px 16px -8px color-mix(in srgb, var(--accent) 70%, transparent);
}
.btn-primary:hover, button.primary:hover, button.full:hover { --btn-bg: var(--accent-hover); }
.btn-ghost, button.ghost, .ghost { --btn-bg: transparent; --btn-line: transparent; --btn-fg: var(--ink-2); }
.btn-ghost:hover, button.ghost:hover { --btn-bg: var(--surface-2); --btn-fg: var(--ink); }
.btn-danger, button.danger { --btn-bg: var(--bad-wash); --btn-fg: var(--bad); --btn-line: color-mix(in srgb, var(--bad) 35%, transparent); }
.btn-danger:hover, button.danger:hover { --btn-bg: color-mix(in srgb, var(--bad) 22%, transparent); }
.btn-sm { min-height: 2rem; padding: 0 var(--s-3); border-radius: var(--r-sm); font-size: var(--text-xs); }
.btn-lg { min-height: 3rem; padding: 0 var(--s-6); font-size: var(--text-base); }
.btn-block, button.full { width: 100%; }
.btn-icon { width: 2.5rem; padding: 0; }
.btn-icon.btn-sm { width: 2rem; }
.btn svg { width: 1rem; height: 1rem; }
.btn[disabled], .btn[aria-disabled="true"], button:disabled { opacity: 0.45; pointer-events: none; }
.btn.spin svg, .spin svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
/* Pending submit (set by v2.js): label dims, spinner takes its place, width never changes. */
.btn[aria-busy="true"] { color: transparent; pointer-events: none; }
.btn[aria-busy="true"] > * { visibility: hidden; }
.btn[aria-busy="true"]::after { content: ""; position: absolute; inset: 0; margin: auto; width: 1rem; height: 1rem; border: 2px solid var(--btn-fg); border-right-color: transparent; border-radius: 50%; animation: spin 0.7s linear infinite; }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--s-2); align-items: center; }

/* ---------- 6. Forms ---------- */
.form { display: grid; gap: var(--s-5); }
.form-grid { display: grid; gap: var(--s-5); }
@media (min-width: 40em) { .form-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.field { display: grid; gap: var(--s-2); }
label, .label { color: var(--ink); font-size: var(--text-sm); font-weight: 500; }
.help { color: var(--ink-3); font-size: var(--text-xs); }
.field-error { color: var(--bad); font-size: var(--text-xs); }
input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="range"]), select, textarea {
  width: 100%; min-height: 2.75rem; padding: 0 var(--s-3);
  background: var(--surface-1); border: 1px solid var(--line-input); border-radius: var(--r-control);
  color: var(--ink); font-size: max(16px, var(--text-base)); /* 16px stops iOS zoom */
  transition: border-color var(--dur-1), box-shadow var(--dur-2);
}
textarea { min-height: 6rem; padding: var(--s-3); line-height: var(--leading-body); resize: vertical; }
select { appearance: none; padding-right: var(--s-8); background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%), linear-gradient(135deg, var(--ink-3) 50%, transparent 50%); background-position: calc(100% - 1.1rem) 50%, calc(100% - 0.8rem) 50%; background-size: 0.3rem 0.3rem; background-repeat: no-repeat; }
input::placeholder, textarea::placeholder { color: var(--ink-3); opacity: 1; }
input:hover, select:hover, textarea:hover { border-color: var(--ink-3); }
input:disabled, select:disabled, textarea:disabled { border-style: dashed; color: var(--ink-2); cursor: not-allowed; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 28%, transparent); }
input[aria-invalid="true"], input:user-invalid, select:user-invalid, textarea:user-invalid { border-color: var(--bad); }
input:user-invalid:focus-visible { box-shadow: 0 0 0 3px var(--bad-wash); }
input[type="checkbox"], input[type="radio"] { width: 1.125rem; height: 1.125rem; margin: 0; accent-color: var(--accent); }
.check, .check-row { display: flex; align-items: center; gap: var(--s-3); font-weight: 400; cursor: pointer; }
input[type="search"]::-webkit-search-cancel-button { filter: grayscale(1); }
.search-field { position: relative; }
.search-field svg { position: absolute; left: var(--s-3); top: 50%; width: 1.125rem; height: 1.125rem; transform: translateY(-50%); color: var(--ink-3); pointer-events: none; }
.search-field input { padding-left: var(--s-10) !important; min-height: 3rem !important; border-radius: var(--r-lg) !important; }
.search-field kbd { position: absolute; right: var(--s-3); top: 50%; transform: translateY(-50%); padding: 2px 6px; border: 1px solid var(--line-strong); border-radius: var(--r-xs); color: var(--ink-3); font-size: var(--text-2xs); transition: opacity var(--dur-1); }
.search-field:focus-within kbd, .search-field:has(input:not(:placeholder-shown)) kbd { opacity: 0; }
@media (pointer: coarse) { .search-field kbd { display: none; } }
fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
legend { padding: 0; margin-bottom: var(--s-3); font-weight: 600; }

/* Switch (checkbox role=switch) */
.switch { appearance: none; position: relative; width: 2.5rem !important; height: 1.5rem !important; border-radius: var(--r-pill); background: var(--surface-3); border: 1px solid var(--line-input); cursor: pointer; transition: background-color var(--dur-2); }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 1.125rem; height: 1.125rem; border-radius: 50%; background: var(--ink-2); transition: transform var(--dur-2) var(--ease-out), background-color var(--dur-2); }
.switch:checked { background: var(--accent); border-color: transparent; }
.switch:checked::after { transform: translateX(1rem); background: var(--on-accent); }

/* ---------- 7. Surfaces ---------- */
.card, .panel {
  background: var(--surface-1); border: 1px solid var(--line); border-radius: var(--r-card);
  padding: var(--s-5);
}
:root[data-scheme="light"] .card, :root[data-scheme="light"] .panel { border-color: transparent; box-shadow: var(--e-1); }
.card + .card, .panel + .panel { margin-top: var(--s-4); }
.card-head, .panel > h2:first-child { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); margin-bottom: var(--s-4); }
.card-title, .panel > h2 { font-size: var(--text-md); font-weight: 600; }
.card-sub { color: var(--ink-2); font-size: var(--text-sm); }
.card-flush { padding: 0; overflow: hidden; }
.card-interactive { display: block; color: inherit; text-decoration: none; transition: border-color var(--dur-2), transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2); }
.card-interactive:hover { border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--e-2); }
.card-interactive:active { transform: translateY(0); }
.divider { height: 1px; background: var(--line); margin: var(--s-4) 0; border: 0; }
.grid { display: grid; gap: var(--s-4); }
@media (min-width: 40em) { .grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 60em) { .grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.stack { display: grid; gap: var(--s-4); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2); }

/* ---------- 8. Badges & chips (JS toggles .ok .bad .paused .heat .cool) ---------- */
.badge {
  --b-fg: var(--ink-2); --b-bg: var(--surface-2); --b-dot: var(--ink-3);
  display: inline-flex; align-items: center; gap: 0.375rem;
  height: 1.5rem; padding: 0 var(--s-2);
  border-radius: var(--r-pill); background: var(--b-bg); color: var(--b-fg);
  font: 500 var(--text-2xs)/1 var(--font-mono); letter-spacing: 0.02em; white-space: nowrap;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--b-dot); }
.badge.plain::before { display: none; }
.badge.ok { --b-fg: var(--ok); --b-bg: var(--ok-wash); --b-dot: var(--ok); }
.badge.bad { --b-fg: var(--bad); --b-bg: var(--bad-wash); --b-dot: var(--bad); }
.badge.warn { --b-fg: var(--warn); --b-bg: var(--warn-wash); --b-dot: var(--warn); }
.badge.paused { --b-fg: var(--ink-3); --b-bg: transparent; --b-dot: var(--line-strong); box-shadow: inset 0 0 0 1px var(--line); }
.badge.cool { --b-fg: var(--cool); --b-bg: var(--cool-wash); --b-dot: var(--cool); }
.badge.heat { --b-fg: var(--heat); --b-bg: var(--heat-wash); --b-dot: var(--heat); }
.badge.accent { --b-fg: var(--accent-ink); --b-bg: var(--accent-wash); --b-dot: var(--accent); }
.badge.bad.pulse::before { animation: pulse 1.6s var(--ease-in-out) infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--bad) 25%, transparent); } }

.chip-row { display: flex; gap: var(--s-2); overflow-x: auto; padding: var(--s-1) 0; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 90%, transparent); mask-image: linear-gradient(90deg, #000 90%, transparent); }
.chip-row::-webkit-scrollbar { display: none; }
.chip {
  flex: none; display: inline-flex; align-items: center; gap: var(--s-1);
  height: 2.25rem; padding: 0 var(--s-4);
  border: 1px solid var(--line-strong); border-radius: var(--r-pill); background: transparent;
  color: var(--ink-2); font-size: var(--text-sm); font-weight: 500;
  transition: background-color var(--dur-1), color var(--dur-1), border-color var(--dur-1);
}
.chip:hover { color: var(--ink); border-color: var(--ink-3); }
/* Selected = accent ("current selection"), same as lab chips and nav. */
.chip.active, .chip[aria-pressed="true"] { background: var(--accent-wash); border-color: var(--accent-ink); color: var(--accent-ink); }

/* ---------- 9. Stats ---------- */
.stat-grid, .stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-card); overflow: hidden; }
.stat { display: grid; gap: var(--s-1); align-content: start; padding: var(--s-4) var(--s-5); background: var(--surface-1); }
.stat-label, .stat > .muted:first-child { color: var(--ink-3); font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; }
.stat-value, .stat > b { font: 500 var(--text-xl)/1.1 var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.stat-meta { color: var(--ink-2); font-size: var(--text-xs); }
.stat.is-bad { box-shadow: inset 0 3px 0 var(--bad); }
.stat.is-bad .stat-value { color: var(--bad); }
.stat.is-ok .stat-value { color: var(--ok); }
a.stat { color: inherit; text-decoration: none; transition: background-color var(--dur-1); }
a.stat:hover { background: var(--surface-2); }

/* ---------- 10. Tables (stack into cards on small screens via data-label) ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-card); background: var(--surface-1); -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
th { position: sticky; top: 0; padding: var(--s-3) var(--s-4); background: var(--surface-2); color: var(--ink-3); font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; text-align: left; white-space: nowrap; }
td { padding: var(--s-3) var(--s-4); border-top: 1px solid var(--line); vertical-align: middle; }
tbody tr { transition: background-color var(--dur-1); }
tbody tr:hover { background: color-mix(in srgb, var(--surface-2) 60%, transparent); }
td.num, th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]:hover { color: var(--ink); }
@media (max-width: 39.99em) {
  .table-stack table, .table-stack thead, .table-stack tbody, .table-stack tr, .table-stack td { display: block; }
  .table-stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .table-stack tr { padding: var(--s-3) var(--s-4); border-top: 1px solid var(--line); }
  .table-stack tr:first-child { border-top: 0; }
  .table-stack td { display: flex; justify-content: space-between; gap: var(--s-4); padding: var(--s-1) 0; border: 0; text-align: right; }
  .table-stack td::before { content: attr(data-label); color: var(--ink-3); font: var(--font-label); line-height: 1.6; letter-spacing: var(--tracking-label); text-transform: uppercase; text-align: left; }
  .table-stack td.num { font-family: var(--font-mono); }
}

/* ---------- 11. Feedback ---------- */
.alert, .flash-ok, .flash-error, .notice, .error {
  --a-fg: var(--ink); --a-bg: var(--surface-2); --a-line: var(--line-strong);
  display: flex; gap: var(--s-3); align-items: flex-start;
  padding: var(--s-3) var(--s-4); margin-bottom: var(--s-4);
  border: 1px solid var(--a-line); border-left-width: 3px; border-radius: var(--r-control);
  background: var(--a-bg); color: var(--a-fg); font-size: var(--text-sm);
}
.alert-ok, .flash-ok, .notice { --a-bg: var(--ok-wash); --a-line: color-mix(in srgb, var(--ok) 45%, transparent); }
.alert-bad, .flash-error, .error { --a-bg: var(--bad-wash); --a-line: color-mix(in srgb, var(--bad) 45%, transparent); }
.alert-warn { --a-bg: var(--warn-wash); --a-line: color-mix(in srgb, var(--warn) 45%, transparent); }
.alert-info { --a-bg: var(--cool-wash); --a-line: color-mix(in srgb, var(--cool) 40%, transparent); }
.status-line { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-2); color: var(--ink-2); font-size: var(--text-sm); }
.empty { display: grid; justify-items: center; gap: var(--s-3); padding: var(--s-12) var(--s-6); border: 1px dashed var(--line-strong); border-radius: var(--r-card); color: var(--ink-2); text-align: center; }
.empty h2, .empty h3 { color: var(--ink); }
.live-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.live-dot::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: inherit; animation: ping 2s var(--ease-out) infinite; }
@keyframes ping { 80%, 100% { transform: scale(2.6); opacity: 0; } }

/* ---------- 12. Tabs / segmented ---------- */
.segmented, .tabs { display: inline-flex; gap: 2px; padding: 3px; background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-md); max-width: 100%; overflow-x: auto; scrollbar-width: none; }
.segmented > *, .tabs > * { flex: none; min-height: 2rem; padding: 0 var(--s-3); border: 0; border-radius: var(--r-sm); background: none; color: var(--ink-2); font-size: var(--text-sm); font-weight: 500; text-decoration: none; display: inline-flex; align-items: center; transition: background-color var(--dur-1), color var(--dur-1); }
.segmented > :hover, .tabs > :hover { color: var(--ink); }
.segmented > .on, .segmented > .is-active, .segmented > [aria-selected="true"], .segmented > [aria-pressed="true"], .segmented > [aria-current="page"],
.tabs > .on, .tabs > .is-active, .tabs > [aria-selected="true"], .tabs > [aria-current="page"] { background: var(--surface-1); color: var(--ink); box-shadow: var(--e-1); }

/* ---------- 13. Key–value ---------- */
.kv { display: grid; gap: var(--s-3); }
.kv > div { display: grid; gap: 2px; }
.kv dt { color: var(--ink-3); font: var(--font-label); letter-spacing: var(--tracking-label); text-transform: uppercase; }
.kv dd { font-size: var(--text-base); overflow-wrap: anywhere; }
@media (min-width: 40em) { .kv.cols { grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); } }
.kv-row { display: flex; justify-content: space-between; gap: var(--s-4); padding: var(--s-3) 0; border-top: 1px solid var(--line); font-size: var(--text-sm); }
.kv-row:first-child { border-top: 0; }
.kv-row > :first-child { color: var(--ink-2); }

/* ---------- 14. Auth layout ---------- */
body.auth { display: grid; place-items: center; padding: var(--s-6) var(--gutter); background: radial-gradient(60rem 30rem at 50% -10%, var(--accent-wash), transparent 60%), var(--bg); }
.auth-card { width: 100%; max-width: 24rem; display: grid; gap: var(--s-6); }
.auth-card .card { padding: var(--s-6); }
.auth-lockup { display: grid; justify-items: center; gap: var(--s-2); }
.auth-title { display: inline-flex; align-items: center; gap: 0.08em; color: var(--ink); font-size: 2rem; font-weight: 700; letter-spacing: -0.055em; line-height: 1; }
.auth-title .mark { width: 0.98em; height: 1.18em; border-radius: 0.24em; font-size: 0.78em; letter-spacing: 0; }
.auth-org { color: var(--ink-3); font: var(--font-label); letter-spacing: 0.16em; text-transform: uppercase; }
.auth-links { color: var(--ink-2); font-size: var(--text-sm); text-align: center; }

/* ---------- 15. Touch: 44px targets wherever the pointer is coarse ---------- */
@media (pointer: coarse) {
  .btn, .btn-sm, .chip, .segmented > *, .tabs > *, .nav-menu-panel a, .nav-menu-panel button, summary { min-height: var(--tap); }
  .btn-icon.btn-sm { width: var(--tap); }
  summary { display: list-item; align-content: center; }
}

/* ---------- 16. Forced colours (Windows high contrast) ---------- */
@media (forced-colors: active) {
  .badge::before, .live-dot, .eyebrow::before { forced-color-adjust: none; background: CanvasText; }
  .chip.active, .chip[aria-pressed="true"], .segmented > [aria-current="page"], .nav-link[aria-current="page"] { outline: 2px solid Highlight; }
  .unit-card, .card, .stat-grid { border: 1px solid CanvasText; }
}