/* ===========================================================================
   components.css — nav, footer, buttons, cards, forms, and shared chrome
   =========================================================================== */

/* ===========================================================================
   SCROLL PROGRESS
   =========================================================================== */

.scroll-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  height: 3px;
  z-index: calc(var(--z-nav) + 1);
  background: transparent;
  pointer-events: none;
}

.scroll-progress__bar {
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--brand), var(--accent) 65%, var(--warm));
  box-shadow: 0 0 12px -2px color-mix(in srgb, var(--brand) 70%, transparent);
}

/* ===========================================================================
   NAV
   =========================================================================== */

.site-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-block-end: var(--hairline) solid transparent;
  transition: border-color var(--dur-mid) var(--ease-out),
              background-color var(--dur-mid) var(--ease-out),
              box-shadow var(--dur-mid) var(--ease-out);
}

/* Applied by JS once the page has scrolled past the hero lip. */
.site-nav.is-stuck {
  border-block-end-color: var(--border-soft);
  box-shadow: var(--elev-1);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-height: 66px;
  padding-inline: var(--gutter);
  max-width: var(--content-wide);
  margin-inline: auto;
}

/* --- Brand lockup --- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-strong);
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-snug);
  font-size: var(--step-0);
  flex-shrink: 0;
}

.brand__mark {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--verdant-400), var(--verdant-600) 55%, var(--signal-600));
  display: grid;
  place-items: center;
  box-shadow: var(--elev-1), inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.brand__mark svg { width: 18px; height: 18px; }

.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__text b { font-weight: var(--weight-bold); }
.brand__text span {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: var(--weight-medium);
}

/* --- Links --- */

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-3xs);
  list-style: none;
  padding: 0;
  margin: 0;
  margin-inline-start: auto;
}

.nav-links a {
  display: inline-block;
  position: relative;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--step--1);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}

.nav-links a:hover { color: var(--text-strong); background: var(--surface-3); }

.nav-links a[aria-current="page"] {
  color: var(--brand-text);
  background: var(--brand-soft);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3xs);
  flex-shrink: 0;
}

/* --- Theme toggle --- */

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: var(--hairline) solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}

.theme-toggle:hover {
  color: var(--brand-text);
  border-color: var(--brand-soft-border);
  background: var(--brand-soft);
}

.theme-toggle:active { transform: scale(0.94); }
.theme-toggle svg { width: 17px; height: 17px; }

/* Show sun in dark mode (click → go light) and moon in light mode. */
.theme-toggle__moon { display: block; }
.theme-toggle__sun  { display: none; }

:root[data-theme="dark"] .theme-toggle__moon { display: none; }
:root[data-theme="dark"] .theme-toggle__sun  { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle__moon { display: none; }
  :root:not([data-theme="light"]) .theme-toggle__sun  { display: block; }
}

/* --- Hamburger --- */

.nav-burger {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  border: var(--hairline) solid var(--border);
  background: var(--surface);
  cursor: pointer;
  padding: 0;
  place-items: center;
}

.nav-burger__box {
  position: relative;
  width: 17px;
  height: 12px;
}

.nav-burger__box span {
  position: absolute;
  left: 0;
  height: 1.8px;
  width: 100%;
  border-radius: 2px;
  background: var(--text-muted);
  transition: transform var(--dur-mid) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out),
              top var(--dur-mid) var(--ease-out);
}

.nav-burger__box span:nth-child(1) { top: 0; }
.nav-burger__box span:nth-child(2) { top: 5px; }
.nav-burger__box span:nth-child(3) { top: 10px; }

.nav-burger[aria-expanded="true"] .nav-burger__box span:nth-child(1) { top: 5px; transform: rotate(45deg); }
.nav-burger[aria-expanded="true"] .nav-burger__box span:nth-child(2) { opacity: 0; transform: scaleX(0.4); }
.nav-burger[aria-expanded="true"] .nav-burger__box span:nth-child(3) { top: 5px; transform: rotate(-45deg); }

/* --- Mobile drawer --- */

@media (max-width: 880px) {
  .nav-burger { display: grid; }

  .nav-menu {
    position: fixed;
    inset: 66px 0 auto 0;
    max-height: calc(100dvh - 66px);
    overflow-y: auto;
    background: var(--surface);
    border-block-end: var(--hairline) solid var(--border);
    box-shadow: var(--elev-3);
    padding: var(--space-xs) var(--gutter) var(--space-sm);
    display: grid;
    gap: var(--space-2xs);
    /* Collapsed by default; JS flips [data-open]. */
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--dur-mid) var(--ease-out),
                opacity var(--dur-mid) var(--ease-out),
                visibility var(--dur-mid) linear;
  }

  .nav-menu[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin-inline-start: 0;
  }

  .nav-links a {
    padding: 12px 14px;
    font-size: var(--step-0);
    border-radius: var(--radius-sm);
  }

  .nav-menu .nav-actions--drawer {
    display: grid;
    gap: var(--space-3xs);
    padding-block-start: var(--space-2xs);
    border-block-start: var(--hairline) solid var(--border-soft);
  }

  .nav-menu .nav-actions--drawer .btn { width: 100%; justify-content: center; }
}

@media (min-width: 881px) {
  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex: 1;
  }
  .nav-actions--drawer { display: none; }
}

/* ===========================================================================
   BUTTONS
   =========================================================================== */

.btn {
  --btn-bg: var(--surface);
  --btn-fg: var(--text-strong);
  --btn-border: var(--border);
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: var(--hairline) solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: var(--step--1);
  font-weight: var(--weight-semi);
  letter-spacing: var(--tracking-snug);
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.988); }

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn--primary {
  --btn-bg: var(--brand);
  --btn-fg: var(--text-on-brand);
  --btn-border: transparent;
  box-shadow: var(--elev-2);
}

.btn--primary:hover {
  --btn-bg: var(--brand-hover);
  box-shadow: var(--elev-3), var(--glow-brand);
}

.btn--secondary {
  --btn-bg: var(--surface);
  --btn-fg: var(--text-strong);
  --btn-border: var(--border-strong);
  box-shadow: var(--elev-1);
}

.btn--secondary:hover {
  --btn-border: var(--brand-soft-border);
  --btn-fg: var(--brand-text);
  box-shadow: var(--elev-2);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--text-muted);
  --btn-border: transparent;
}

.btn--ghost:hover {
  --btn-bg: var(--surface-3);
  --btn-fg: var(--text-strong);
}

.btn--soft {
  --btn-bg: var(--brand-soft);
  --btn-fg: var(--brand-text);
  --btn-border: var(--brand-soft-border);
}

.btn--soft:hover { --btn-bg: color-mix(in srgb, var(--brand) 18%, transparent); }

.btn--lg { padding: 14px 26px; font-size: var(--step-0); border-radius: var(--radius-md); }
.btn--sm { padding: 8px 14px; font-size: var(--step--2); }
.btn--block { width: 100%; }

/* Arrow that nudges on hover. */
.btn__arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* Text link with a growing underline. */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--step--1);
  font-weight: var(--weight-semi);
  color: var(--brand-text);
  text-decoration: none;
}

.link-arrow::after {
  content: "→";
  transition: transform var(--dur-fast) var(--ease-out);
}

.link-arrow:hover::after { transform: translateX(4px); }

/* ===========================================================================
   PILLS / BADGES / CHIPS
   =========================================================================== */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border-radius: var(--radius-full);
  border: var(--hairline) solid var(--border);
  background: var(--surface);
  font-size: var(--step--2);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  box-shadow: var(--elev-1);
}

.pill--brand {
  background: var(--brand-soft);
  border-color: var(--brand-soft-border);
  color: var(--brand-text);
}

.pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  flex-shrink: 0;
}

/* Live-pulse dot for "in motion" indicators. */
.pill__dot--live {
  position: relative;
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--brand) 60%, transparent);
  animation: pulse-ring 2.2s var(--ease-out) infinite;
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--brand) 55%, transparent); }
  70%  { box-shadow: 0 0 0 8px color-mix(in srgb, var(--brand) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--brand) 0%, transparent); }
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: var(--weight-semi);
  letter-spacing: 0.01em;
  border: var(--hairline) solid transparent;
  white-space: nowrap;
}

.badge--ok   { background: var(--ok-soft);   color: var(--ok-text);   border-color: color-mix(in srgb, var(--ok) 30%, transparent); }
.badge--warn { background: var(--warn-soft); color: var(--warn-text); border-color: color-mix(in srgb, var(--warn) 34%, transparent); }
.badge--bad  { background: var(--bad-soft);  color: var(--bad-text);  border-color: color-mix(in srgb, var(--bad) 32%, transparent); }
.badge--neutral { background: var(--surface-3); color: var(--text-subtle); border-color: var(--border-soft); }
.badge--accent { background: var(--accent-soft); color: var(--accent-text); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }

/* Field-type tag, mirroring the app's FICON map (TXT / NUM / SEL …). */
.ftag {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--surface-inset);
  border: var(--hairline) solid var(--border-soft);
  color: var(--text-subtle);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: var(--weight-bold);
  letter-spacing: 0.04em;
}

/* ===========================================================================
   CARDS
   =========================================================================== */

.card {
  position: relative;
  background: var(--surface);
  border: var(--hairline) solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  box-shadow: var(--elev-1);
  transition: box-shadow var(--dur-mid) var(--ease-out),
              border-color var(--dur-mid) var(--ease-out),
              transform var(--dur-mid) var(--ease-out);
}

.card--flat { box-shadow: none; }
.card--sunk { background: var(--surface-2); }
.card--pad-sm { padding: var(--space-xs); }
.card--pad-lg { padding: clamp(var(--space-sm), 3vw, var(--space-md)); }

.card__icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  border: var(--hairline) solid var(--brand-soft-border);
  color: var(--brand-text);
  margin-block-end: var(--space-2xs);
}

.card__icon svg { width: 20px; height: 20px; }
.card__icon--accent { background: var(--accent-soft); color: var(--accent-text); border-color: color-mix(in srgb, var(--accent) 28%, transparent); }
.card__icon--warm   { background: var(--warm-soft);   color: var(--warm-text);   border-color: color-mix(in srgb, var(--warm) 28%, transparent); }

.card__title {
  font-size: var(--step-1);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-snug);
  margin-block-end: 6px;
}

.card__body {
  font-size: var(--step--1);
  line-height: var(--leading-loose);
  color: var(--text-muted);
}

/* --- Interactive card: 3D tilt + cursor spotlight -------------------------
   JS writes --mx/--my (pointer position, %) and --rx/--ry (tilt, deg).
   With no JS or reduced motion the card simply sits still. */

.card--tilt {
  transform-style: preserve-3d;
  will-change: transform;
  overflow: hidden;
}

.card--tilt::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    420px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in srgb, var(--brand) 16%, transparent),
    transparent 62%
  );
  transition: opacity var(--dur-mid) var(--ease-out);
}

.card--tilt:hover,
.card--tilt:focus-within {
  border-color: var(--brand-soft-border);
  box-shadow: var(--elev-3);
  transform: perspective(900px)
             rotateX(var(--rx, 0deg))
             rotateY(var(--ry, 0deg))
             translateZ(0);
}

.card--tilt:hover::before,
.card--tilt:focus-within::before { opacity: 1; }

.card--tilt > * { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  .card--tilt:hover,
  .card--tilt:focus-within { transform: none; }
}

/* Touch devices get no tilt — hover is a lie there. */
@media (hover: none) {
  .card--tilt:hover { transform: none; }
  .card--tilt::before { display: none; }
}

/* ===========================================================================
   STAT / COUNTER TILES
   =========================================================================== */

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-xs);
  border-radius: var(--radius-md);
  background: var(--surface);
  border: var(--hairline) solid var(--border);
  box-shadow: var(--elev-1);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: var(--step-4);
  font-weight: var(--weight-bold);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text-strong);
  font-variant-numeric: tabular-nums;
}

.stat__value .stat__suffix { color: var(--brand); }

.stat__label {
  font-size: var(--step--2);
  font-weight: var(--weight-medium);
  color: var(--text-subtle);
  letter-spacing: 0.02em;
}

.stat__note { font-size: var(--step--2); color: var(--text-faint); }

/* ===========================================================================
   FORMS
   =========================================================================== */

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

.field__label {
  font-size: var(--step--1);
  font-weight: var(--weight-semi);
  color: var(--text-strong);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.field__req { color: var(--bad); font-weight: var(--weight-bold); }

.field__hint {
  font-size: var(--step--2);
  color: var(--text-faint);
  line-height: 1.5;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 11px 13px;
  border-radius: var(--radius-sm);
  border: var(--hairline) solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: var(--step--1);
  line-height: 1.45;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}

.input::placeholder,
.textarea::placeholder { color: var(--text-faint); }

.input:hover,
.textarea:hover,
.select:hover { border-color: var(--border-strong); }

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent);
}

.textarea { resize: vertical; min-height: 128px; }

.select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 19px) calc(50% + 1px),
                       calc(100% - 14px) calc(50% + 1px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-inline-end: 36px;
  cursor: pointer;
}

/* Invalid state, applied by the validator (never by :invalid alone, which
   would flag empty required fields before the visitor has typed anything). */
.input[aria-invalid="true"],
.textarea[aria-invalid="true"],
.select[aria-invalid="true"] {
  border-color: var(--bad);
  background: color-mix(in srgb, var(--bad) 5%, var(--surface));
}

.input[aria-invalid="true"]:focus,
.textarea[aria-invalid="true"]:focus,
.select[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--bad) 18%, transparent);
}

.field__error {
  font-size: var(--step--2);
  font-weight: var(--weight-medium);
  color: var(--bad-text);
  display: none;
  align-items: center;
  gap: 5px;
}

.field__error[data-show="true"] { display: flex; }

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--step--1);
  color: var(--text-muted);
  line-height: 1.5;
  cursor: pointer;
}

.checkbox input {
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--brand);
  flex-shrink: 0;
  cursor: pointer;
}

/* --- Segmented control (billing toggle, demo tabs) --- */

.segmented {
  display: inline-flex;
  padding: 4px;
  gap: 3px;
  border-radius: var(--radius-full);
  background: var(--surface-3);
  border: var(--hairline) solid var(--border);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.segmented__btn {
  position: relative;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-size: var(--step--1);
  font-weight: var(--weight-semi);
  color: var(--text-muted);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: color var(--dur-fast) var(--ease-out),
              background-color var(--dur-mid) var(--ease-out),
              box-shadow var(--dur-mid) var(--ease-out);
}

.segmented__btn:hover { color: var(--text-strong); }

.segmented__btn[aria-pressed="true"],
.segmented__btn[aria-selected="true"] {
  background: var(--surface);
  color: var(--text-strong);
  box-shadow: var(--elev-2);
}

/* ===========================================================================
   ACCORDION
   =========================================================================== */

.accordion { display: grid; gap: var(--space-3xs); }

.accordion__item {
  border: var(--hairline) solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.accordion__item:hover { border-color: var(--border-strong); }

.accordion__item.is-open {
  border-color: var(--brand-soft-border);
  box-shadow: var(--elev-2);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xs);
  padding: var(--space-xs);
  text-align: start;
  font-family: var(--font-display);
  font-size: var(--step-0);
  font-weight: var(--weight-semi);
  letter-spacing: var(--tracking-snug);
  color: var(--text-strong);
  cursor: pointer;
}

.accordion__icon {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: var(--hairline) solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: transform var(--dur-mid) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.accordion__icon::before {
  content: "";
  width: 9px;
  height: 9px;
  border-inline-end: 1.8px solid currentColor;
  border-block-end: 1.8px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
}

.accordion__item.is-open .accordion__icon {
  transform: rotate(180deg);
  background: var(--brand-soft);
  color: var(--brand-text);
}

/* Height animation via grid-template-rows: 0fr → 1fr, which (unlike max-height)
   needs no magic number and still collapses cleanly. */
.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-mid) var(--ease-out);
}

.accordion__item.is-open .accordion__panel { grid-template-rows: 1fr; }

.accordion__panel > div {
  overflow: hidden;
  min-height: 0;
}

.accordion__panel p {
  padding: 0 var(--space-xs) var(--space-xs);
  margin: 0;
  font-size: var(--step--1);
  line-height: var(--leading-loose);
  color: var(--text-muted);
  max-width: 74ch;
}

/* ===========================================================================
   MOCK APP CHROME — shared by hero widget, device mockups, demo page
   =========================================================================== */

.app-frame {
  border-radius: var(--radius-lg);
  border: var(--hairline) solid var(--border);
  background: var(--wash-panel);
  box-shadow: var(--elev-4);
  overflow: hidden;
}

.app-frame__bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 14px;
  background: var(--surface-2);
  border-block-end: var(--hairline) solid var(--border-soft);
}

.app-frame__dots { display: flex; gap: 5px; }

.app-frame__dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border-strong);
}

.app-frame__dots i:first-child { background: color-mix(in srgb, var(--bad) 65%, var(--border-strong)); }
.app-frame__dots i:nth-child(2) { background: color-mix(in srgb, var(--warn) 65%, var(--border-strong)); }
.app-frame__dots i:nth-child(3) { background: color-mix(in srgb, var(--ok) 65%, var(--border-strong)); }

.app-frame__title {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--text-faint);
  letter-spacing: 0.02em;
  margin-inline: auto;
  padding-inline-end: 34px;
}

.app-frame__body { padding: var(--space-xs); }

/* ===========================================================================
   DATA TABLE (mock records)
   =========================================================================== */

.dtable {
  width: 100%;
  min-width: 520px;
  font-size: var(--step--2);
  border-collapse: separate;
  border-spacing: 0;
}

.dtable th {
  text-align: start;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--weight-semi);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 8px 11px;
  border-block-end: var(--hairline) solid var(--border);
  background: var(--surface-2);
  position: sticky;
  top: 0;
  z-index: 1;
  white-space: nowrap;
}

.dtable td {
  padding: 9px 11px;
  border-block-end: var(--hairline) solid var(--border-soft);
  color: var(--text-muted);
  white-space: nowrap;
}

.dtable tbody tr:last-child td { border-block-end: none; }
.dtable tbody tr { transition: background-color var(--dur-fast) var(--ease-out); }
.dtable tbody tr:hover { background: var(--surface-3); }

.dtable .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text-strong);
}

/* New rows land with a brief highlight so streaming data is legible. */
.dtable tr.is-new { animation: row-in var(--dur-slow) var(--ease-out) both; }

@keyframes row-in {
  from { opacity: 0; transform: translateY(-5px); background: var(--brand-soft); }
  to   { opacity: 1; transform: none; background: transparent; }
}

/* ===========================================================================
   FOOTER
   =========================================================================== */

.site-footer {
  margin-block-start: var(--space-xl);
  border-block-start: var(--hairline) solid var(--border);
  background: var(--surface-2);
}

.footer-grid {
  display: grid;
  gap: var(--space-sm);
  /* min() on every track floor: without it the 240px + 150px minimums exceed a
     narrow viewport and push the whole page into a horizontal scroll. */
  grid-template-columns:
    minmax(min(240px, 100%), 1.5fr)
    repeat(auto-fit, minmax(min(150px, 100%), 1fr));
  padding-block: var(--space-md);
}

@media (max-width: 820px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-about { grid-column: 1 / -1; }
}

@media (max-width: 460px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }
}

.footer-about { display: grid; gap: var(--space-2xs); align-content: start; }

.footer-about p {
  font-size: var(--step--1);
  color: var(--text-muted);
  max-width: 42ch;
  line-height: var(--leading-loose);
}

.footer-col { display: grid; gap: 9px; align-content: start; }

.footer-col h3 {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: var(--weight-semi);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-block-end: 3px;
}

.footer-col a {
  font-size: var(--step--1);
  color: var(--text-muted);
  text-decoration: none;
  width: fit-content;
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-col a:hover { color: var(--brand-text); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xs);
  padding-block: var(--space-xs);
  border-block-start: var(--hairline) solid var(--border-soft);
  font-size: var(--step--2);
  color: var(--text-faint);
}

.footer-bottom p { margin: 0; }

/* ===========================================================================
   SCROLL REVEAL
   Opt-in via [data-reveal]. JS adds .is-visible when the element enters view.
   If JS never runs, or motion is reduced, content is fully visible.
   =========================================================================== */

@media (prefers-reduced-motion: no-preference) {
  html.js [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--dur-slow) var(--ease-out),
                transform var(--dur-slow) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
  }

  html.js [data-reveal="left"]  { transform: translateX(-22px); }
  html.js [data-reveal="right"] { transform: translateX(22px); }
  html.js [data-reveal="scale"] { transform: scale(0.965); }

  html.js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ===========================================================================
   TOAST (form feedback)
   =========================================================================== */

.toast-stack {
  position: fixed;
  inset-block-end: var(--space-xs);
  inset-inline-end: var(--space-xs);
  z-index: var(--z-toast);
  display: grid;
  gap: 9px;
  max-width: min(340px, calc(100vw - var(--space-sm)));
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px 15px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: var(--hairline) solid var(--border);
  box-shadow: var(--elev-3);
  font-size: var(--step--1);
  color: var(--text);
  animation: toast-in var(--dur-mid) var(--ease-spring) both;
}

.toast--ok  { border-inline-start: 3px solid var(--ok); }
.toast--bad { border-inline-start: 3px solid var(--bad); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: none; }
}