/* ==========================================================================
   Komunidad Climate Intelligence — product chrome

   Sign-in, the single-pane assistant, the usage dashboard, and the workspace
   activation pages. The assembler at /build/ and the landing page carry their
   own stylesheets; this one has to agree with them, because a person crosses
   between the two in a single session and a change of palette mid-flow reads
   as a change of product.

   So the palette here is the one from landing.css and assembler.css — cool
   teal on white — and not the warm paper stock this file used to carry. There
   is deliberately no dark variant: /build/ has none, and a machine set to dark
   would otherwise show a dark sign-in page and a light app behind it.

   Pure CSS, no framework. All tokens are custom properties.
   ========================================================================== */

:root {
  /* Surfaces — the assembler's working surfaces, so the two agree */
  --paper:        #f4f7f8;
  --surface:      #ffffff;
  --surface-2:    #fafcfc;
  --surface-sunk: #eef2f4;

  /* Ink */
  --ink:          #17262b;
  --ink-2:        #41545c;
  --ink-3:        #6b7a84;
  --ink-faint:    #93a3ab;

  /* Rules and edges */
  --rule:         #e2eaec;
  --rule-strong:  #cfdade;

  /* Brand. #1d969e, not the #2dd4bf of the dark marketing pages: mint on
     white fails contrast for text and small controls. */
  --accent:       #1d969e;
  --accent-2:     #17787f;
  --accent-soft:  #eaf6f7;
  --accent-ink:   #135c62;
  --accent-line:  #a9d9dd;

  /* Semantic */
  --warn:         #8a5a06;
  --warn-soft:    #fdf5e6;
  --danger:       #b4322f;
  --danger-soft:  #fdefee;
  --ok:           #1c7a52;
  --ok-soft:      #eaf6f0;

  /* Type. Poppins throughout, self-hosted in css/fonts.css. --font-mono and
     --font-serif are kept as roles so existing rules need no rewriting; all
     three resolve to the one family, and the tabular-figure rules below do the
     digit alignment the monospace face used to. */
  --font-sans: Poppins, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", sans-serif;
  --font-mono: Poppins, -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, "Helvetica Neue", sans-serif;
  --font-serif: Poppins, -apple-system, BlinkMacSystemFont, "Segoe UI",
                Roboto, "Helvetica Neue", sans-serif;

  /* Metrics. Rounded rather than the old 3px filing-card corners, to match
     the 26px composer pill on the landing page. */
  --radius:    10px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --gutter:    20px;
  --rhythm:    24px;
  --shadow:    0 1px 2px rgba(20, 60, 66, .04),
               0 4px 16px rgba(20, 60, 66, .06);
  --shadow-lg: 0 2px 8px rgba(20, 60, 66, .06),
               0 20px 48px rgba(20, 60, 66, .10);
  --ring:      0 0 0 3px rgba(29, 150, 158, .16);
  --maxw:      1320px;
}

/* --------------------------------------------------------------------------
   Reset / base
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.012em; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.05rem; }
h3 { font-size: .92rem; }

p { margin: 0 0 var(--rhythm); }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-ink); }

code, kbd, .mono, .tabular {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

::selection { background: var(--accent-soft); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   Layout shell
   -------------------------------------------------------------------------- */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 var(--gutter);
  height: 58px;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: saturate(180%) blur(8px);
}

/* The mark is a link home, and it is the real logo rather than a text
   wordmark plus a square — the same lockup the landing page opens with, so
   crossing from / to /login/ does not look like arriving somewhere else. */
.masthead__mark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
}

.masthead__logo {
  height: 24px;
  width: auto;
  display: block;
  transition: opacity .15s ease;
}
.masthead__mark:hover .masthead__logo { opacity: .72; }

.masthead__rule {
  width: 1px;
  height: 18px;
  background: var(--rule);
}

.masthead__sub {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.masthead__nav { display: flex; gap: 4px; margin-left: auto; }

.masthead__link {
  padding: 7px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: .84rem;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
}
.masthead__link:hover {
  border-color: var(--accent-line);
  color: var(--accent-ink);
}
.masthead__link[aria-current="page"] {
  background: var(--accent-soft);
  border-color: var(--accent-line);
  color: var(--accent-ink);
}

.shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--rhythm) var(--gutter) 56px;
}

/* --------------------------------------------------------------------------
   Panel — the core "record card"
   -------------------------------------------------------------------------- */

.panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--rule);
  background: var(--surface-2);
}

.panel__title {
  font-size: .74rem;
  font-weight: 650;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.panel__meta { margin-left: auto; font-size: .78rem; color: var(--ink-3); }

.panel__body { padding: 18px; }

/* --------------------------------------------------------------------------
   Chat
   -------------------------------------------------------------------------- */

/* Four rows, because the panel has four children: header, turn meter, log,
   composer. It declared three, so the meter took the flexible row and floated
   in the middle of the page with the log collapsed underneath it. */
.chat {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  height: calc(100dvh - 58px - var(--rhythm) * 2);
  min-height: 520px;
  overflow: hidden;
}

.chat__log {
  overflow-y: auto;
  padding: 8px 22px 18px;
  scroll-behavior: smooth;
}

/* The ruled-paper gradient that used to live here belonged to the warm filing
   aesthetic. Against white it reads as banding rather than texture, and it
   scrolled with `background-attachment: local` so the lines slid under the
   text. Entries carry their own separators instead. */

@media (prefers-reduced-motion: reduce) {
  .chat__log { scroll-behavior: auto; }
}

.entry {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 14px;
  margin-bottom: 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  animation: entry-in .22s ease-out both;
  transition: border-color .15s ease, background .15s ease;
}
.entry:last-child { margin-bottom: 0; }

/* The assistant's turns are the ones people re-read, so they get the surface
   and the user's stay plain — the asymmetry is what makes a thread skimmable
   without avatars or coloured bubbles. */
.entry--assistant {
  background: var(--accent-soft);
  border-color: var(--accent-line);
}
.entry--user:hover { background: var(--surface-2); border-color: var(--rule); }

@keyframes entry-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .entry { animation: none; }
}

.entry__gutter {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 2px;
}

.entry__role { display: block; font-weight: 600; color: var(--ink-3); }
.entry__seq  { display: block; margin-top: 2px; font-variant-numeric: tabular-nums; }

.entry__body { min-width: 0; }

.entry__body p { margin: 0 0 .7em; }
.entry__body p:last-child { margin-bottom: 0; }

.entry--assistant .entry__body {
  font-size: .97rem;
  line-height: 1.62;
  color: var(--ink);
}

.entry--system .entry__body {
  font-size: .86rem;
  color: var(--ink-3);
  font-style: italic;
}

.entry__footnote {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.entry__footnote span + span::before {
  content: "·";
  margin: 0 7px;
  color: var(--rule-strong);
}

/* Typing indicator */
.typing { display: inline-flex; gap: 4px; align-items: center; height: 1.4em; }
.typing i {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--ink-faint);
  animation: pulse 1.1s ease-in-out infinite;
}
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes pulse {
  0%, 60%, 100% { opacity: .25; transform: translateY(0); }
  30%           { opacity: 1;   transform: translateY(-2px); }
}
@media (prefers-reduced-motion: reduce) {
  .typing i { animation: none; opacity: .5; }
}

/* Empty state */
.chat__empty {
  max-width: 46ch;
  margin: auto;
  padding: 6vh 0;
  text-align: center;
  color: var(--ink-3);
}
/* `margin: auto` only centres inside a flex/grid parent. */
.chat__log:has(.chat__empty) { display: grid; place-items: center; }
.chat__empty h2 { margin-bottom: 8px; color: var(--ink); }
.chat__empty p  { font-size: .9rem; }

/* --------------------------------------------------------------------------
   Turn meter (rate-limit indicator)
   -------------------------------------------------------------------------- */

.meter {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 18px;
  border-bottom: 1px solid var(--rule);
  background: var(--surface);
  font-size: .78rem;
  transition: background .25s ease, border-color .25s ease;
}

.meter__label {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--ink-2);
  white-space: nowrap;
}
.meter__label b { color: var(--ink); font-weight: 650; }

.meter__pips { display: flex; gap: 3px; }

.meter__pip {
  width: 16px; height: 5px;
  border-radius: var(--radius-pill);
  background: var(--surface-sunk);
  border: 1px solid var(--rule);
  transition: background .2s ease, border-color .2s ease;
}
.meter__pip[data-spent="true"] { background: var(--accent); border-color: var(--accent); }

.meter__note { margin-left: auto; color: var(--ink-3); }

/* Warning state — 8/10 and 9/10 */
.meter[data-state="warning"] {
  background: var(--warn-soft);
  border-bottom-color: var(--warn);
}
.meter[data-state="warning"] .meter__label b,
.meter[data-state="warning"] .meter__note { color: var(--warn); }
.meter[data-state="warning"] .meter__pip[data-spent="true"] {
  background: var(--warn); border-color: var(--warn);
}

/* Exhausted state — 10/10 */
.meter[data-state="exhausted"] {
  background: var(--danger-soft);
  border-bottom-color: var(--danger);
}
.meter[data-state="exhausted"] .meter__label b,
.meter[data-state="exhausted"] .meter__note { color: var(--danger); }
.meter[data-state="exhausted"] .meter__pip[data-spent="true"] {
  background: var(--danger); border-color: var(--danger);
}

/* --------------------------------------------------------------------------
   Composer
   -------------------------------------------------------------------------- */

.composer {
  border-top: 1px solid var(--rule);
  background: var(--surface-2);
  padding: 13px 18px;
}

.composer__row { display: flex; gap: 11px; align-items: flex-end; }

.composer__input {
  flex: 1;
  min-height: 44px;
  max-height: 200px;
  padding: 11px 13px;
  resize: none;
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: 22px;
  transition: border-color .16s ease, box-shadow .16s ease;
}
.composer__input::placeholder { color: var(--ink-faint); }
.composer__input:hover:not(:disabled) { border-color: var(--accent-line); }
.composer__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--ring);
}
.composer__input:disabled {
  background: var(--surface-sunk);
  color: var(--ink-faint);
  cursor: not-allowed;
  border-color: var(--rule);
}

.composer__hint {
  margin-top: 7px;
  font-size: .72rem;
  color: var(--ink-faint);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 38px;
  padding: 0 16px;
  font: inherit;
  font-size: .86rem;
  font-weight: 550;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition: background .14s ease, border-color .14s ease, transform .06s ease;
}
.btn:hover:not(:disabled) { background: var(--surface-2); border-color: var(--accent-line); color: var(--accent-ink); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn--primary:hover:not(:disabled) {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
}

.btn--ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn--ghost:hover:not(:disabled) { background: var(--surface-2); }

.btn--sm { height: 32px; padding: 0 14px; font-size: .78rem; }

/* --------------------------------------------------------------------------
   Notices
   -------------------------------------------------------------------------- */

.notice {
  display: flex;
  gap: 13px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-left-width: 3px;
  border-radius: var(--radius);
  background: var(--surface-2);
  font-size: .88rem;
  animation: entry-in .2s ease-out both;
}
.notice__title { font-weight: 650; margin-bottom: 3px; }
.notice__body  { color: var(--ink-2); }
.notice__body p:last-child { margin-bottom: 0; }
.notice__actions { margin-top: 11px; display: flex; gap: 8px; }

.notice--warning { background: var(--warn-soft);   border-left-color: var(--warn); }
.notice--danger  { background: var(--danger-soft); border-left-color: var(--danger); }
.notice--ok      { background: var(--ok-soft);     border-left-color: var(--ok); }

.notice--warning .notice__title { color: var(--warn); }
.notice--danger  .notice__title { color: var(--danger); }
.notice--ok      .notice__title { color: var(--ok); }

/* --------------------------------------------------------------------------
   Analytics
   -------------------------------------------------------------------------- */

.toolbar {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
  margin-bottom: var(--rhythm);
}
.toolbar__spacer { margin-left: auto; }

.select {
  height: 34px;
  padding: 0 30px 0 11px;
  font: inherit;
  font-size: .84rem;
  color: var(--ink);
  background: var(--surface)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2378726a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E")
    no-repeat right 11px center;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  appearance: none;
  cursor: pointer;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin-bottom: var(--rhythm);
}

.stat {
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.stat:hover {
  border-color: var(--accent-line);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.stat__label {
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 7px;
}

.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.6rem;
  font-weight: 550;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--ink);
}

.stat__foot { margin-top: 5px; font-size: .74rem; color: var(--ink-3); }

.stat--alert .stat__value { color: var(--danger); }
.stat--good  .stat__value { color: var(--ok); }

/* Bars */
.bars { display: grid; gap: 11px; }

.bar__head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: .82rem;
  margin-bottom: 5px;
}
.bar__name  { font-weight: 550; }
.bar__value { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--ink-2); }

.bar__track {
  height: 8px;
  background: var(--surface-sunk);
  border-radius: var(--radius-pill);
  overflow: hidden;
}
.bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: var(--radius-pill);
  transition: width .4s cubic-bezier(.2, .7, .3, 1);
}
@media (prefers-reduced-motion: reduce) {
  .bar__fill { transition: none; }
}

/* Daily-spend column chart.

   `flex: 1` alone made one day of data a single slab the width of the card,
   which reads as a filled progress bar rather than a chart. Columns now have a
   sane maximum and the row starts from the left, so a sparse window looks
   sparse — which is the honest picture. */
.spark {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 4px;
  height: 120px;
  padding-top: 8px;
}
.spark__col {
  flex: 1 1 auto;
  min-width: 3px;
  max-width: 46px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: 4px 4px 0 0;
  opacity: .86;
  transition: opacity .14s ease, transform .14s ease;
  transform-origin: bottom;
}
.spark__col:hover { opacity: 1; transform: scaleY(1.02); }
.spark__col[data-blocked="true"] {
  background: linear-gradient(180deg, var(--danger) 0%, #8f2724 100%);
}

@media (prefers-reduced-motion: reduce) {
  .spark__col { transition: none; }
  .spark__col:hover { transform: none; }
}

.spark-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 7px;
  font-size: .68rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

/* Table */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--rhythm);
  margin-bottom: var(--rhythm);
}

.table { width: 100%; border-collapse: collapse; font-size: .85rem; }

.table th {
  text-align: left;
  padding: 8px 12px;
  font-size: .68rem;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}

.table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-2);
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: var(--surface-2); }

.table .num {
  text-align: right;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.table__wrap { overflow-x: auto; }

.tag {
  display: inline-block;
  padding: 1px 7px;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .03em;
  border-radius: 2px;
  background: var(--surface-sunk);
  color: var(--ink-2);
}
.tag--alert { background: var(--danger-soft); color: var(--danger); }
.tag--ok    { background: var(--ok-soft);     color: var(--ok); }

.empty-row { padding: 28px; text-align: center; color: var(--ink-faint); font-size: .86rem; }

.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-sunk) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.3s linear infinite;
  border-radius: 2px;
  color: transparent !important;
}
@keyframes shimmer { to { background-position: -200% 0; } }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }

.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;
}

/* ==========================================================================
   Phone and tablet — assistant, analytics and sign-in

   Same rules of thumb as the assembler: dvh instead of vh so the composer is
   not hidden behind a mobile browser toolbar, 16px inputs so iOS does not zoom
   the page on focus, and nothing interactive smaller than a fingertip.
   ========================================================================== */

@media (max-width: 900px) {
  :root { --gutter: 14px; --rhythm: 18px; }

  .masthead {
    height: auto;
    min-height: 54px;
    padding: 8px var(--gutter);
    gap: 10px 12px;
    flex-wrap: wrap;
  }
  .masthead__sub { display: none; }
  .masthead__nav { margin-left: auto; gap: 2px; }
  .masthead__link { padding: 8px 10px; }
  .masthead__session {
    margin-left: 0;
    padding-left: 0;
    border-left: 0;
  }
  .masthead__user { max-width: 12ch; }

  .shell { padding: var(--rhythm) var(--gutter) calc(28px + env(safe-area-inset-bottom, 0px)); }

  /* The chat fills the screen below the masthead rather than guessing at a
     fixed height; 100dvh tracks the visible viewport as the toolbar hides. */
  .chat {
    height: calc(100dvh - 54px - var(--rhythm) * 2);
    min-height: 380px;
  }
  .chat__log { padding: 14px 12px; }

  .panel__head { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  .panel__meta { order: 3; width: 100%; }

  .composer { padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px)); }
  .composer__row { gap: 8px; }
  .composer__input { font-size: 16px; min-height: 46px; }
  .composer__hint { display: none; }

  .btn { min-height: 44px; }
  .btn--sm { min-height: 38px; }
  .select { height: 42px; font-size: 16px; }

  .toolbar { gap: 8px; }
  .toolbar h1 { width: 100%; }
  .toolbar__spacer { display: none; }

  .stat-grid { grid-template-columns: 1fr 1fr; }

  .entry { grid-template-columns: 1fr; gap: 6px; }
  .entry__gutter { display: flex; gap: 10px; }
  .meter__note { display: none; }

  /* Wide tables scroll in their own box; the page itself must never scroll
     sideways. */
  .table__wrap { -webkit-overflow-scrolling: touch; }
  .table { font-size: .8rem; }
  .table th, .table td { padding-left: 8px; padding-right: 8px; }

  .auth { margin-top: 4vh; }
  /* Sign-in fields inherit 15px from the body, which is under iOS Safari's
     16px zoom threshold — focusing one would zoom the whole page. */
  .field__input { font-size: 16px; height: 46px; }
  .auth__submit { height: 48px; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .masthead__user { display: none; }
}

/* --------------------------------------------------------------------------
   Auth
   -------------------------------------------------------------------------- */

.auth {
  position: relative;
  z-index: 1;
  max-width: 420px;
  margin: 7vh auto 0;
}

/* Self-contained card rather than .panel: the sign-in page has no chrome to
   share with the rest of the app, and a titled header bar above a form that
   already says "Sign in" in three other places is one label too many. */
.auth__card {
  padding: 34px 32px 30px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: auth-in .42s cubic-bezier(.2, .7, .3, 1) both;
}

@keyframes auth-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

.auth__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 26px;
}

.auth__logo { width: 210px; max-width: 78%; height: auto; }

.auth__lede {
  margin: 16px 0 0;
  font-size: .9rem;
  color: var(--ink-3);
}

.auth__form { display: grid; gap: 16px; }

/* The notice is a sibling of the form, so the form's own gap does not apply
   to it and it would otherwise sit flush against the first label. */
.auth__card .notice { margin-bottom: 20px; }

.auth__submit {
  width: 100%;
  height: 44px;
  margin-top: 6px;
  font-size: .92rem;
}

.auth__foot {
  margin-top: 14px;
  text-align: center;
  font-size: .78rem;
  color: var(--ink-3);
}
.auth__foot + .auth__foot { margin-top: 6px; }

.field { display: grid; gap: 7px; }

.field__label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.field__wrap { position: relative; display: grid; }

.field__input {
  height: 46px;
  padding: 0 15px;
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  transition: border-color .16s ease, box-shadow .16s ease;
}
.field__input::placeholder { color: var(--ink-faint); }

.field__input:hover { border-color: var(--accent-line); }

.field__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--ring);
}

/* Room for the reveal button so a long password never runs under it. */
.field__input--reveal { padding-right: 68px; }

.field__reveal {
  position: absolute;
  top: 50%;
  right: 7px;
  transform: translateY(-50%);
  height: 32px;
  padding: 0 12px;
  font: inherit;
  font-size: .76rem;
  font-weight: 500;
  color: var(--ink-3);
  background: var(--surface-sunk);
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color .15s ease, background .15s ease, border-color .15s ease;
}
.field__reveal:hover {
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-color: var(--accent-line);
}
.field__reveal:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--ring);
}

/* In flight. Not :disabled — a disabled submit is dropped from the POST body
   by some browsers and the form would arrive without it. */
.auth__submit[data-busy="true"] {
  opacity: .75;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Water behind the sign-in card

   Same path and same four-layer parallax as the landing page. Fixed, behind
   the content, and inert to the pointer.
   -------------------------------------------------------------------------- */

.authwaves {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 30vh;
  min-height: 170px;
  z-index: 0;
  pointer-events: none;
}
.authwaves svg { width: 100%; height: 100%; display: block; }

.authwaves__set > use { animation: auth-wave-drift 26s cubic-bezier(.55, .5, .45, .5) infinite; }
.authwaves__l1 { animation-delay: -2s; animation-duration:  9s; fill: rgba(29, 150, 158, .16); }
.authwaves__l2 { animation-delay: -3s; animation-duration: 13s; fill: rgba(45, 180, 190, .11); }
.authwaves__l3 { animation-delay: -4s; animation-duration: 17s; fill: rgba(29, 150, 158, .08); }
.authwaves__l4 { animation-delay: -5s; animation-duration: 24s; fill: rgba(29, 150, 158, .22); }

@keyframes auth-wave-drift {
  from { transform: translate3d(-90px, 0, 0); }
  to   { transform: translate3d( 85px, 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .authwaves__set > use { animation: none; }
  .auth__card { animation: none; }
}

@media (max-width: 520px) {
  .auth { margin-top: 4vh; }
  .auth__card { padding: 26px 20px 24px; }
  .auth__logo { width: 180px; }
}

/* Masthead session control */
.masthead__session {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--rule);
}

.masthead__user {
  font-size: .8rem;
  color: var(--ink-2);
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.masthead__logout {
  padding: 0;
  font: inherit;
  font-size: .8rem;
  color: var(--ink-3);
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.masthead__logout:hover { color: var(--danger); }