/* Emma UI: the shared design layer for the talk page, the sign-in page and the dashboard.
   Values are apple.com's, measured 14 Oct 2026 (docs/APPLE_DESIGN_PLAN.md section 2).
   No Apple assets: SF Pro is used only where the device has it, Inter is the fallback.
   Light only, exactly like apple.com: the pages ignore the device's dark mode (owner, 14 Oct). */

@font-face {
  font-family: "Inter Emma";
  src: url("/static/fonts/inter-var-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* type */
  --font-text: "SF Pro Text", -apple-system, BlinkMacSystemFont, "Inter Emma", "Segoe UI", system-ui, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Inter Emma", "Segoe UI", system-ui, sans-serif;

  /* colour */
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #86868b;
  --canvas: #ffffff;
  --canvas-alt: #f5f5f7;
  --canvas-index: #fafafc;
  --grouped: #f2f2f7;
  --tile: #f5f5f7;
  --tile-raised: #ffffff;
  --hairline: #d2d2d7;
  --hairline-soft: rgba(0, 0, 0, 0.08);
  --blue: #0071e3;
  --blue-hover: #0077ed;
  --blue-active: #006edb;
  --link: #0066cc;
  --on-blue: #ffffff;
  --green: #34c759;
  --orange: #ff9f0a;
  --red: #ff3b30;
  --red-ink: #d70015;
  --purple: #af52de;
  --teal: #30b0c7;
  --indigo: #5856d6;
  --pink: #ff2d55;
  --bubble-them: #e9e9eb;
  --bubble-me: #0071e3;
  --field-border: #86868b;
  --focus: #0071e3;

  /* glass */
  --glass-bar: rgba(255, 255, 255, 0.8);
  --glass-bar-open: rgba(250, 250, 252, 0.92);
  --glass-filter: saturate(180%) blur(20px);
  --glass-pill: rgba(232, 232, 237, 0.72);
  --glass-pill-hover: rgba(223, 223, 227, 0.7);
  --glass-pill-active: rgba(193, 193, 198, 0.65);
  --glass-glow: rgba(0, 0, 0, 0.11);
  --glass-edge: rgba(255, 255, 255, 0.55);
  --curtain: rgba(232, 232, 237, 0.4);

  /* shape */
  --r-pill: 980px;
  --r-tile: 28px;
  --r-card: 18px;
  --r-group: 12px;
  --r-control: 12px;
  --r-small: 8px;

  /* motion (apple.com) */
  --ease: cubic-bezier(0.4, 0, 0.6, 1);
  --ease-layout: cubic-bezier(0.25, 0.1, 0.3, 1);
  --ease-color: cubic-bezier(0.28, 0.11, 0.32, 1);
  --ease-lift: cubic-bezier(0, 0, 0.5, 1);
  --ease-in-out-quad: cubic-bezier(0.455, 0.03, 0.515, 0.955);   /* StaggeredFadeIn's easeFunction (REA) */
  --t-fast: 240ms;
  --t: 320ms;
  --t-layout: 300ms;

  color-scheme: light;
}


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

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.47059;
  font-weight: 400;
  letter-spacing: -0.022em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

[hidden] { display: none !important; }

/* ------------------------------------------------------------------ type scale */
.t-hero { font-family: var(--font-display); font-size: 64px; line-height: 1.0625; font-weight: 600; letter-spacing: -0.009em; }
.t-headline { font-family: var(--font-display); font-size: 48px; line-height: 1.08349; font-weight: 600; letter-spacing: -0.003em; }
.t-title { font-family: var(--font-display); font-size: 40px; line-height: 1.1; font-weight: 600; letter-spacing: 0; }
.t-large-title { font-family: var(--font-display); font-size: 34px; line-height: 1.17647; font-weight: 700; letter-spacing: 0.007em; }
.t-subhead { font-family: var(--font-display); font-size: 24px; line-height: 1.16667; font-weight: 400; letter-spacing: 0.009em; }
.t-section { font-family: var(--font-display); font-size: 21px; line-height: 1.19048; font-weight: 600; letter-spacing: 0.011em; }
.t-body { font-size: 17px; line-height: 1.47059; letter-spacing: -0.022em; }
.t-small { font-size: 14px; line-height: 1.28577; letter-spacing: -0.016em; }
.t-caption { font-size: 12px; line-height: 1.33337; letter-spacing: -0.01em; }
.ink-2 { color: var(--ink-2); }
.num { font-variant-numeric: tabular-nums; }

@media (max-width: 734px) {
  .t-hero { font-size: 48px; line-height: 1.08349; letter-spacing: -0.003em; }
  .t-headline { font-size: 40px; line-height: 1.1; letter-spacing: 0; }
  .t-title { font-size: 32px; line-height: 1.125; letter-spacing: 0.004em; }
  .t-subhead { font-size: 21px; line-height: 1.19048; letter-spacing: 0.011em; }
}

/* ------------------------------------------------------------------ glass */
.glass-bar {
  background: var(--glass-bar);
  -webkit-backdrop-filter: var(--glass-filter);
  backdrop-filter: var(--glass-filter);
}

.glass-pill {
  position: relative;
  background: var(--glass-pill);
  -webkit-backdrop-filter: blur(14px) saturate(180%);
  backdrop-filter: blur(14px) saturate(180%);
  border-radius: var(--r-pill);
  box-shadow: inset 0 0 0 0.5px var(--glass-glow), inset 0 1px 0 var(--glass-edge), 0 8px 28px rgba(0, 0, 0, 0.08);
}

@media (prefers-reduced-transparency: reduce) {
  .glass-bar, .glass-pill {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: var(--canvas-index);
  }
}

/* ------------------------------------------------------------------ buttons */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 11px 21px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  background: var(--blue);
  color: var(--on-blue);
  font: inherit;
  font-size: 17px;
  line-height: 1.17648;
  letter-spacing: -0.022em;
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--t-fast) var(--ease-color), color var(--t-fast) var(--ease-color),
    border-color var(--t-fast) var(--ease-color), transform 160ms var(--ease), opacity var(--t-fast) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn-pill:hover { background: var(--blue-hover); text-decoration: none; }
.btn-pill:active { background: var(--blue-active); transform: scale(0.97); }
.btn-pill:disabled, .btn-pill[aria-disabled="true"] { opacity: 0.42; cursor: default; transform: none; }
.btn-pill:disabled:hover { background: var(--blue); }

.btn-pill.outline { background: transparent; color: var(--link); border-color: var(--link); }
.btn-pill.outline:hover { background: var(--link); color: #fff; }
.btn-pill.gray { background: var(--canvas-alt); color: var(--ink); }
.btn-pill.gray:hover { background: var(--hairline-soft); }
.btn-pill.danger { background: var(--red); color: #fff; }
.btn-pill.danger:hover { background: #ff453a; }
.btn-pill.danger-text { background: transparent; color: var(--red-ink); }
.btn-pill.danger-text:hover { background: rgba(255, 59, 48, 0.1); }
.btn-pill.text { background: transparent; color: var(--link); padding-inline: 8px; min-height: 32px; }
.btn-pill.text:hover { text-decoration: underline; background: transparent; }
.btn-pill.small { min-height: 30px; padding: 5px 14px; font-size: 14px; letter-spacing: -0.016em; }
.btn-pill.block { width: 100%; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 0;
  background: var(--canvas-alt);
  color: var(--ink);
  font: inherit;
  font-size: 17px;
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease-color), transform 160ms var(--ease);
}
.icon-btn:hover { background: var(--hairline-soft); }
.icon-btn:active { transform: scale(0.95); }

/* ------------------------------------------------------------------ floating-label field */
.field-float {
  position: relative;
  display: block;
}
.field-float input,
.field-float select {
  width: 100%;
  height: 56px;
  padding: 26px 16px 8px;
  border-radius: var(--r-control);
  border: 1px solid var(--field-border);
  background: var(--tile-raised);
  color: var(--ink);
  font: inherit;
  font-size: 17px;
  letter-spacing: -0.022em;
  outline: none;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.field-float label {
  position: absolute;
  left: 17px;
  top: 17px;
  color: var(--ink-2);
  font-size: 17px;
  line-height: 21px;
  pointer-events: none;
  z-index: 2;
  transform-origin: left top;
  transition: transform var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.field-float input:focus { border-color: var(--focus); box-shadow: 0 0 0 1px var(--focus), 0 0 0 4px rgba(0, 113, 227, 0.18); }
.field-float input:focus + label,
.field-float input:not(:placeholder-shown) + label,
.field-float select + label {
  transform: translateY(-10px) scale(0.7059);
}
.field-float.invalid input { border-color: var(--red); box-shadow: 0 0 0 1px var(--red); }
.field-help { margin: 6px 4px 0; font-size: 12px; line-height: 1.33337; letter-spacing: -0.01em; color: var(--ink-2); }
.field-error { margin: 8px 4px 0; font-size: 14px; letter-spacing: -0.016em; color: var(--red-ink); }

/* plain inputs inside the dashboard share the look, without the floating label */
.input, .select {
  height: 36px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--hairline);
  background: var(--tile-raised);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  letter-spacing: -0.016em;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.input:focus, .select:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.2); }

/* ------------------------------------------------------------------ segmented control */
.segmented {
  position: relative;
  display: inline-grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 2px;
  border-radius: 9px;
  background: rgba(118, 118, 128, 0.12);
  isolation: isolate;
}
.segmented button {
  position: relative;
  z-index: 1;
  min-width: 64px;
  height: 28px;
  padding: 0 14px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease);
}
.segmented .seg-thumb {
  position: absolute;
  z-index: 0;
  top: 2px;
  bottom: 2px;
  left: 0;
  border-radius: 7px;
  background: var(--tile-raised);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.12), 0 3px 1px rgba(0, 0, 0, 0.04);
  transition: transform var(--t-layout) var(--ease-layout), width var(--t-layout) var(--ease-layout);
}

/* ------------------------------------------------------------------ tiles */
.tile {
  background: var(--tile);
  border-radius: var(--r-tile);
  padding: 28px;
}
.tile-hover {
  transition: transform var(--t-layout) var(--ease-lift);
  cursor: pointer;
}
@media (hover: hover) and (pointer: fine) {
  .tile-hover:hover { transform: scale(var(--card-element-scale, 1.016)); }
}

/* ------------------------------------------------------------------ staggered reveal (apple.com StaggeredFadeIn) */
html.js [data-reveal] > *,
html.js [data-reveal-self] {
  opacity: 0;
  transform: translateY(var(--reveal-y, 30px));
}
html.js [data-reveal].is-in > *,
html.js [data-reveal-self].is-in {
  opacity: 1;
  transform: none;
}
html.js [data-reveal].is-in:not(.is-done) > *,
html.js [data-reveal-self].is-in:not(.is-done) {
  transition:
    opacity var(--reveal-fade, 0.9s) var(--ease-in-out-quad) calc(var(--i, 0) * var(--reveal-step, 150ms)),
    transform var(--reveal-rise, 0.7s) var(--ease-in-out-quad) calc(var(--i, 0) * var(--reveal-step, 150ms));
}
[data-reveal="fast"] { --reveal-y: 12px; --reveal-fade: 0.42s; --reveal-rise: 0.36s; --reveal-step: 60ms; }

/* ------------------------------------------------------------------ toasts */
.toast-stack {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  display: grid;
  justify-items: center;
  gap: 8px;
  transform: translateX(-50%);
  pointer-events: none;
  width: min(560px, calc(100vw - 32px));
}
.toast-pill {
  pointer-events: auto;
  padding: 12px 22px;
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: -0.016em;
  animation: toast-in var(--t) var(--ease-layout) both;
}
.toast-pill.error { color: var(--red-ink); }
.toast-pill.urgent { color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--red), 0 8px 28px rgba(0, 0, 0, 0.12); }
.toast-pill.leaving { animation: toast-out var(--t-fast) var(--ease) both; }
@keyframes toast-in { from { opacity: 0; transform: translateY(16px) scale(0.96); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px) scale(0.98); } }

/* ------------------------------------------------------------------ shake (wrong password) */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.shake { animation: shake 300ms var(--ease); }

/* ------------------------------------------------------------------ the pearl (Emma's mark) */
.pearl {
  --size: 40px;
  --tint: #9fb4d8;
  display: inline-block;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.95) 0 9%, rgba(255, 255, 255, 0) 30%),
    radial-gradient(circle at 70% 78%, color-mix(in srgb, var(--tint) 55%, transparent) 0%, transparent 60%),
    radial-gradient(circle at 50% 50%, #ffffff 0%, #eef0f5 46%, #d9dde6 78%, #c7ccd8 100%);
  box-shadow: inset 0 -2px 6px rgba(0, 0, 0, 0.08), inset 0 1px 1px rgba(255, 255, 255, 0.9), 0 1px 2px rgba(0, 0, 0, 0.12);
  flex: none;
}

/* ------------------------------------------------------------------ reduced motion: everything instant */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    transition-delay: 0s !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] > *, [data-reveal-self] { opacity: 1; transform: none; }
}