:root {
  /* Light theme — baby blue + lavender accents on warm cream paper.
     Variable names kept stable (--night, --coral, --gold) so palette swaps
     remain a single-block change. Values were flipped from dark to light. */

  --night: #F6F4F0;            /* warm cream paper (was deep violet-black) */
  --night-2: #ECE9E2;          /* deeper cream surface for cards */
  --ink: #1F2030;              /* deep cool slate (was light cream) */
  --ink-soft: #4A4B5E;         /* medium slate */
  --mute: #8A8B9A;             /* cool gray */
  --mute-2: #B0B1BC;           /* lighter gray */
  --hair: rgba(31, 32, 48, 0.08);
  --line: rgba(31, 32, 48, 0.20);

  --coral: #6FA9CE;            /* BABY BLUE — primary live accent (was coral) */
  --peach: #B8D2E5;            /* light baby blue (was peach glow) */
  --gold: #A88FCC;             /* LAVENDER — secondary / sent accent (was gold) */
  --predawn: #C9B5E3;          /* light lavender wash */

  --display: 'Space Grotesk', 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
  --grotesk: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

input, button, [role="button"], label { touch-action: manipulation; }

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "tnum", "kern";
}

body {
  background: var(--night);
  color: var(--ink);
  font-family: var(--grotesk);
  font-weight: 300;
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

::selection { background: var(--coral); color: var(--night); }

/* Soft glow — baby blue rising from the lower right, lavender washing the
   upper left. Same composition as the old dawn-glow, light-theme palette. */
.dawn-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 90vw 70vh at 80% 110%, rgba(111, 169, 206, 0.22) 0%, rgba(111, 169, 206, 0) 55%),
    radial-gradient(ellipse 70vw 50vh at 70% 100%, rgba(184, 210, 229, 0.18) 0%, rgba(184, 210, 229, 0) 60%),
    radial-gradient(ellipse 100vw 50vh at 20% -10%, rgba(168, 143, 204, 0.22) 0%, rgba(168, 143, 204, 0) 55%);
}

/* Threshold layout — vertical flex so .flow expands naturally.
   Padding uses safe-area-insets so notched / home-indicator devices
   never crop the page. */
.threshold {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100svh;
  max-width: 34rem;
  margin: 0 auto;
  padding-top:    max(1.75rem, env(safe-area-inset-top));
  padding-right:  max(1.75rem, env(safe-area-inset-right));
  padding-bottom: max(2rem,    env(safe-area-inset-bottom));
  padding-left:   max(1.75rem, env(safe-area-inset-left));
  display: flex;
  flex-direction: column;
}

/* Header strip */
.head {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.head-mid { text-align: center; }
.head-right { text-align: right; }

.mono {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  text-transform: lowercase;
}

/* Wordmark — smaller, restrained */
.mark {
  margin-top: clamp(3rem, 12vh, 7rem);
  text-align: left;
}

.mark h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.4rem, 7vw, 3.8rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--ink);
  text-transform: lowercase;
}

.mark-tagline {
  font-family: var(--display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(0.9rem, 1.9vw, 1.05rem);
  letter-spacing: -0.005em;
  color: var(--coral);
  margin-top: 0.55rem;
  text-transform: lowercase;
}

/* Epigraph */
.epigraph {
  margin-top: 2.25rem;
  padding-left: 1.1rem;
  border-left: 2px solid var(--coral);
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.epigraph p {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-transform: lowercase;
}

.epigraph p.last {
  color: var(--coral);
  font-style: italic;
}

/* Creed — single quiet line */
.creed {
  margin-top: 1.5rem;
  padding-left: 1.1rem;
}

.creed p {
  font-family: var(--mono);
  font-weight: 300;
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--peach);
}

/* Gate — the invitation prompt */
.gate {
  margin-top: clamp(3rem, 10vh, 5.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-self: end;
}

.gate-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.gate-label {
  font-family: var(--grotesk);
  font-style: italic;
  font-weight: 300;
  font-size: 1rem;
  color: var(--ink-soft);
  letter-spacing: -0.005em;
}

.gate-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease;
}

.gate-form:focus-within .gate-row { border-color: var(--coral); }

.gate-form input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  caret-color: var(--coral);
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  padding: 0.25rem 0;
  width: 100%;
}

.gate-form input::placeholder { color: var(--mute-2); }

.gate-key {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.18rem 0.45rem;
  align-self: end;
  margin-bottom: 0.15rem;
  transition: color 220ms ease, border-color 220ms ease;
}

.gate-form:focus-within .gate-key {
  color: var(--coral);
  border-color: var(--coral);
}

.gate-rule {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--mute);
  margin-top: 0.15rem;
}

/* Refused state — a small horizontal shake, no shouting */
@keyframes refuse {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-3px); }
  40% { transform: translateX(3px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}

.gate-form.refused .gate-row {
  border-color: var(--mute);
  animation: refuse 320ms ease;
}

.gate-form.passed .gate-row { border-color: var(--coral); }
.gate-form.passed input { color: var(--coral); }

/* Result text — appears after submission */
.gate-result { min-height: 1.5rem; }

.gate-result .result-line {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  letter-spacing: -0.02em;
  color: var(--coral);
  text-transform: lowercase;
  animation: rise 420ms ease both;
}

.gate-result .result-line.refused {
  color: var(--ink-soft);
}

.gate-result .result-sub {
  margin-top: 0.4rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--mute);
  animation: rise 480ms ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Registration ---- */
.register {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 480ms ease, transform 480ms ease;
}

.register[hidden] { display: none; }
.register.shown { opacity: 1; transform: translateY(0); }

.register.submitting { opacity: 0.55; pointer-events: none; }

@keyframes regShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  50% { transform: translateX(3px); }
  75% { transform: translateX(-2px); }
}
.register.error { animation: regShake 320ms ease; }

.reg-row {
  display: grid;
  grid-template-columns: 4.25rem 1fr;
  align-items: end;
  gap: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease;
}

.reg-row:focus-within { border-color: var(--coral); }

.reg-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--mute);
  padding-bottom: 0.32rem;
}

.register input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  caret-color: var(--coral);
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  padding: 0.25rem 0;
  width: 100%;
  appearance: none;
}

.register input[type="number"]::-webkit-outer-spin-button,
.register input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.register input[type="number"] { -moz-appearance: textfield; }

.reg-foot {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.4rem;
  flex-wrap: wrap;
}

.reg-submit {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--coral);
  padding: 0.65rem 1.15rem;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  transition: background 200ms ease, color 200ms ease, transform 200ms ease;
}

.reg-submit:hover,
.reg-submit:focus-visible {
  background: var(--coral);
  color: var(--night);
  outline: none;
  transform: translateY(-1px);
}

.reg-key {
  font-family: var(--mono);
  font-size: 0.85rem;
  opacity: 0.85;
}

.reg-error {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--mute);
  margin: 0;
  min-height: 1em;
}

/* ---- Final state ---- */
.final {
  margin-top: 2rem;
  animation: rise 480ms ease both;
}

.final[hidden] { display: none; }

.final-line {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--coral);
  text-transform: lowercase;
}

.final-sub {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--ink-soft);
}

/* Footer */
.foot {
  margin-top: clamp(3rem, 10vh, 5rem);
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  text-align: left;
}

.foot .mono { color: var(--mute); }

/* ============================================================
   Multi-step flow — one big question per screen, five
   distinct transitions stitching them together.
   ============================================================ */

.flow {
  position: relative;
  flex: 1;
  display: grid;
  margin-top: clamp(2.5rem, 9vh, 5rem);
  perspective: 1400px;
  perspective-origin: 50% 45%;
}

/* All steps share a single grid cell — the cell sizes to the tallest step,
   so .flow can never be too short for whatever screen is active. */
.step {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
  transform-origin: 50% 50%;
  backface-visibility: hidden;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.step.active,
.step.leaving,
.step.entering {
  visibility: visible;
}

.step.active {
  pointer-events: auto;
  opacity: 1;
}

.step-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.step-question {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.6rem, 4.4vw, 2.6rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--ink);
  text-transform: lowercase;
  margin-bottom: 0.4rem;
}

.step-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 0.85rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease;
}

.step-row:focus-within { border-color: var(--coral); }

.step-row input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--ink);
  caret-color: var(--coral);
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  letter-spacing: -0.01em;
  padding: 0.35rem 0;
  width: 100%;
  appearance: none;
}

.step-row input::placeholder { color: var(--mute-2); }
.step-row input[type="number"]::-webkit-outer-spin-button,
.step-row input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.step-row input[type="number"] { -moz-appearance: textfield; }

/* The step-key is a real <button type="submit"> so it works on touch
   keyboards that have no Return key (tel, numeric inputs on iOS). */
.step-key {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.35rem 0.65rem;
  align-self: end;
  margin-bottom: 0.2rem;
  cursor: pointer;
  transition: color 220ms ease, border-color 220ms ease, background 220ms ease, transform 180ms ease;
  /* Center the ↵ glyph in its button */
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.step-key:hover { color: var(--coral); border-color: var(--coral); }
.step-key:active { transform: scale(0.95); }
.step-key:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}
.step-row:focus-within ~ .step-key,
.step-form:focus-within .step-key {
  color: var(--coral);
  border-color: var(--coral);
}

.step-hint {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: lowercase;
  margin-top: 0.2rem;
}

.step-error {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--coral);
  text-transform: lowercase;
  min-height: 1em;
  margin-top: 0.2rem;
}

.step.passed .step-row { border-color: var(--coral); }
.step.passed .step-row input { color: var(--coral); }
.step.submitting { opacity: 0.55; pointer-events: none; }

/* Refusal shake — used inside an active step */
@keyframes step-shake {
  0%, 100% { transform: translateX(0); }
  25%      { transform: translateX(-4px); }
  50%      { transform: translateX(4px); }
  75%      { transform: translateX(-3px); }
}
.step.shake .step-row { animation: step-shake 320ms ease; }

/* ---- Acknowledgement step ---- */
.ack-context {
  font-family: var(--grotesk);
  font-style: italic;
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 30rem;
  margin-top: 0.4rem;
}

.ack-statement {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: var(--ink);
  max-width: 30rem;
  margin-top: 0.4rem;
}

.ack-warning {
  font-family: var(--mono);
  font-weight: 300;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  line-height: 1.55;
  color: var(--mute);
  max-width: 30rem;
  margin-top: 0.85rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--hair);
}

/* checkbox toggle */
.ack-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1.2rem;
  cursor: pointer;
  user-select: none;
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-transform: lowercase;
  align-self: flex-start;
}
.ack-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.ack-toggle-mark {
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--line);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 200ms ease;
}
.ack-toggle-mark::before {
  content: '';
  width: 9px;
  height: 9px;
  background: var(--coral);
  border-radius: 2px;
  transform: scale(0);
  transition: transform 220ms cubic-bezier(.7, 0, .2, 1.4);
}
.ack-toggle:hover .ack-toggle-mark { border-color: var(--ink-soft); }
.ack-toggle input:checked ~ .ack-toggle-mark { border-color: var(--coral); }
.ack-toggle input:checked ~ .ack-toggle-mark::before { transform: scale(1); }
.ack-toggle input:focus-visible ~ .ack-toggle-mark { outline: 2px solid var(--coral); outline-offset: 2px; }

/* continue button */
.ack-submit {
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--coral);
  padding: 0.6rem 1.15rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease, transform 200ms ease, opacity 200ms ease;
  align-self: flex-start;
  text-transform: lowercase;
}
.ack-submit:hover:not(:disabled),
.ack-submit:focus-visible:not(:disabled) {
  background: var(--coral);
  color: var(--night);
  outline: none;
  transform: translateY(-1px);
}
.ack-submit:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  border-color: var(--mute-2);
  color: var(--mute);
}
.ack-key {
  font-family: var(--mono);
  font-size: 0.72rem;
  border: 1px solid currentColor;
  border-radius: 3px;
  padding: 0.08rem 0.38rem;
  opacity: 0.7;
  letter-spacing: 0;
}

/* ---- Phone step (+52 locked prefix) ---- */
.phone-row {
  grid-template-columns: auto 1fr auto;
  gap: 0.55rem;
}
.phone-prefix {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  letter-spacing: -0.005em;
  color: var(--ink-soft);
  align-self: end;
  padding-bottom: 0.4rem;
  user-select: none;
}

/* ---- Birthday step (single masked input — DD / MM / AAAA) ---- */
.bday-row input {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3.4vw, 1.9rem);
  letter-spacing: 0.04em;
  text-align: left;
  color: var(--ink);
  caret-color: var(--coral);
  background: transparent;
  border: none;
  outline: none;
  padding: 0.35rem 0;
  width: 100%;
  font-variant-numeric: tabular-nums;
  appearance: none;
}
.bday-row input::placeholder {
  color: var(--mute-2);
  font-weight: 300;
}

/* ---- Shared .complete state (phone + birthday) — invites Enter ---- */
.phone-row.complete,
.bday-row.complete {
  border-bottom-color: var(--coral);
}
.phone-row.complete .step-key,
.bday-row.complete .step-key {
  color: var(--night);
  background: var(--coral);
  border-color: var(--coral);
}

/* ---- Sex step (m / f / ___) ---- */
.sex-pick {
  display: inline-flex;
  gap: 0.7rem;
  margin-top: 0.7rem;
  flex-wrap: wrap;
}

.sex-btn {
  font-family: var(--display);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--line);
  padding: 0.95rem 1.7rem;
  min-width: 4.5rem;
  border-radius: 999px;
  cursor: pointer;
  text-transform: lowercase;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease, transform 200ms ease;
}
.sex-btn:hover,
.sex-btn:focus-visible {
  border-color: var(--coral);
  color: var(--coral);
  outline: none;
  transform: translateY(-1px);
}
.sex-btn.active {
  background: var(--coral);
  color: var(--night);
  border-color: var(--coral);
  transform: translateY(-1px);
}

.sex-btn-other {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--mute);
  border-style: dashed;
  padding: 0.95rem 1.45rem;
}
.sex-btn-other:hover {
  border-style: solid;
  color: var(--ink);
}

.sex-custom-row {
  margin-top: 0.7rem;
}

/* ---- Final step ---- */
.step-final { justify-content: center; }
.final-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.final-line {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  color: var(--coral);
  text-transform: lowercase;
}
.final-sub {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--ink-soft);
}

/* ============================================================
   Transitions — five distinct motions, paired with metaphor
   ============================================================ */

/* (0 → 1) curtain — vertical squeeze, threshold crossing */
@keyframes leave-curtain {
  0%   { clip-path: inset(0 0 0 0);     transform: scaleY(1);   opacity: 1; }
  60%  { opacity: 1; }
  100% { clip-path: inset(48% 0 48% 0); transform: scaleY(0.4); opacity: 0; }
}
@keyframes enter-curtain {
  0%   { clip-path: inset(48% 0 48% 0); transform: scaleY(0.6); opacity: 0; }
  100% { clip-path: inset(0 0 0 0);     transform: scaleY(1);   opacity: 1; }
}

/* (1 → 2) zoom-blur — door pulling you through */
@keyframes leave-zoom {
  0%   { transform: scale(1);    filter: blur(0);   opacity: 1; }
  100% { transform: scale(1.18); filter: blur(8px); opacity: 0; }
}
@keyframes enter-zoom {
  0%   { transform: scale(0.78); filter: blur(10px); opacity: 0; }
  100% { transform: scale(1);    filter: blur(0);    opacity: 1; }
}

/* (2 → 3) vertical — a page lifting */
@keyframes leave-up {
  0%   { transform: translateY(0);     opacity: 1; }
  100% { transform: translateY(-22vh); opacity: 0; }
}
@keyframes enter-up {
  0%   { transform: translateY(22vh);  opacity: 0; }
  100% { transform: translateY(0);     opacity: 1; }
}

/* (3 → 4) dissolve — voice across the line, atmospheric blur */
@keyframes leave-dissolve {
  0%   { opacity: 1; filter: blur(0);    transform: scale(1); }
  100% { opacity: 0; filter: blur(14px); transform: scale(1.04); }
}
@keyframes enter-dissolve {
  0%   { opacity: 0; filter: blur(14px); transform: scale(0.97); }
  100% { opacity: 1; filter: blur(0);    transform: scale(1); }
}

/* (4 → 5) horizontal slide with subtle blur — Rolodex */
@keyframes leave-left {
  0%   { transform: translateX(0)      skewX(0);   filter: blur(0);   opacity: 1; }
  100% { transform: translateX(-18vw)  skewX(4deg); filter: blur(4px); opacity: 0; }
}
@keyframes enter-right {
  0%   { transform: translateX(18vw)   skewX(-4deg); filter: blur(4px); opacity: 0; }
  100% { transform: translateX(0)      skewX(0);     filter: blur(0);   opacity: 1; }
}

/* (4 → 5) 3D rotateY — paper flipping over */
@keyframes leave-flip {
  0%   { transform: perspective(1400px) rotateY(0)     translateZ(0);   opacity: 1; }
  100% { transform: perspective(1400px) rotateY(-78deg) translateZ(-60px); opacity: 0; }
}
@keyframes enter-flip {
  0%   { transform: perspective(1400px) rotateY(78deg)  translateZ(-60px); opacity: 0; }
  100% { transform: perspective(1400px) rotateY(0)      translateZ(0);     opacity: 1; }
}

/* (5 → 6) iris — circular shutter opening to reveal final */
@keyframes leave-iris {
  0%   { clip-path: circle(120% at 50% 50%); opacity: 1; transform: scale(1); }
  100% { clip-path: circle(0% at 50% 50%);   opacity: 0; transform: scale(0.95); }
}
@keyframes enter-iris {
  0%   { clip-path: circle(0% at 50% 50%);   opacity: 1; transform: scale(1.05); }
  100% { clip-path: circle(140% at 50% 50%); opacity: 1; transform: scale(1); }
}

/* Apply animations via classes so JS can orchestrate timing.
   visibility is set above; opacity is restored so keyframes can animate it. */
.step.leaving  { opacity: 1; }
.step.entering { opacity: 1; }

.step.leaving-curtain   { animation: leave-curtain   620ms cubic-bezier(.7, 0, .25, 1)    forwards; }
.step.entering-curtain  { animation: enter-curtain   780ms cubic-bezier(.2, .55, .25, 1)  forwards; }

.step.leaving-zoom   { animation: leave-zoom   620ms cubic-bezier(.55, .05, .25, 1) forwards; }
.step.entering-zoom  { animation: enter-zoom   720ms cubic-bezier(.2, .65, .3, 1)   forwards; }

.step.leaving-up     { animation: leave-up     560ms cubic-bezier(.7, 0, .25, 1)    forwards; }
.step.entering-up    { animation: enter-up     720ms cubic-bezier(.2, .65, .3, 1)   forwards; }

.step.leaving-dissolve   { animation: leave-dissolve   600ms cubic-bezier(.5, 0, .5, 1)    forwards; }
.step.entering-dissolve  { animation: enter-dissolve   780ms cubic-bezier(.2, .55, .25, 1) forwards; }

.step.leaving-left   { animation: leave-left   560ms cubic-bezier(.7, 0, .25, 1)    forwards; }
.step.entering-right { animation: enter-right  720ms cubic-bezier(.2, .65, .3, 1)   forwards; }

.step.leaving-flip   { animation: leave-flip   620ms cubic-bezier(.65, 0, .3, 1)    forwards; }
.step.entering-flip  { animation: enter-flip   760ms cubic-bezier(.2, .55, .2, 1)   forwards; }

.step.leaving-iris   { animation: leave-iris   620ms cubic-bezier(.7, 0, .3, 1)     forwards; }
.step.entering-iris  { animation: enter-iris   820ms cubic-bezier(.2, .65, .3, 1)   forwards; }

@media (prefers-reduced-motion: reduce) {
  .step.leaving-curtain, .step.entering-curtain,
  .step.leaving-zoom, .step.entering-zoom,
  .step.leaving-up, .step.entering-up,
  .step.leaving-dissolve, .step.entering-dissolve,
  .step.leaving-left, .step.entering-right,
  .step.leaving-flip, .step.entering-flip,
  .step.leaving-iris, .step.entering-iris {
    animation-duration: 220ms !important;
    animation-timing-function: ease !important;
  }
}

/* ============================================================
   Progress dots — quiet rhythm marker
   ============================================================ */

.progress {
  display: flex;
  gap: 0.55rem;
  margin-top: 1.5rem;
  align-items: center;
  transition: opacity 320ms ease;
}
.progress.done { opacity: 0; pointer-events: none; }

.progress .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mute-2);
  transition: background 280ms ease, transform 280ms ease;
}
.progress .dot.active { background: var(--coral); transform: scale(1.15); }

/* ============================================================
   Touch + mobile optimizations
   ============================================================ */

/* On touch-only devices (no physical keyboard, no soft Return on tel/numeric
   inputs), the step-key is the only way to submit. Make it a thumb-friendly
   tap target (≥ 44pt). The .ack-key is still decorative inside the explicit
   continue button, so it can stay small. */
@media (hover: none) and (pointer: coarse) {
  .step-key {
    padding: 0.7rem 1rem;
    font-size: 1rem;
    min-width: 44px;
    min-height: 44px;
  }
}

/* Phones */
@media (max-width: 480px) {
  .threshold {
    padding-top:    max(1rem,   env(safe-area-inset-top));
    padding-right:  max(1.1rem, env(safe-area-inset-right));
    padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
    padding-left:   max(1.1rem, env(safe-area-inset-left));
  }

  .head { padding-top: 0.6rem; }
  .mono { font-size: 0.65rem; }

  .mark { margin-top: 2.25rem; }
  .mark-tagline { margin-top: 0.45rem; }

  .flow { margin-top: 2.25rem; }

  .foot { margin-top: 1.75rem; }

  /* Step typography slightly tighter */
  .step-question { font-size: clamp(1.5rem, 7vw, 2rem); }

  /* Acknowledgement — denser on phones */
  .ack-context  { font-size: 0.95rem; line-height: 1.5; }
  .ack-statement { font-size: 1.1rem; line-height: 1.4; }
  .ack-warning  { font-size: 0.62rem; }

  /* Larger checkbox tap target (Apple HIG ≥ 44pt) */
  .ack-toggle {
    padding: 0.5rem 0;
    margin-top: 1rem;
    font-size: 0.88rem;
  }
  .ack-toggle-mark {
    width: 22px;
    height: 22px;
  }
  .ack-toggle-mark::before { width: 11px; height: 11px; }

  /* Continue button — thumb-friendly */
  .ack-submit {
    padding: 0.85rem 1.3rem;
    font-size: 0.85rem;
    min-height: 44px;
  }

  /* Sex buttons — thumb-friendly */
  .sex-pick { gap: 0.55rem; }
  .sex-btn {
    padding: 1rem 1.5rem;
    min-height: 44px;
    font-size: 1.2rem;
  }
  .sex-btn-other {
    padding: 1rem 1.3rem;
    font-size: 0.95rem;
  }

  /* Phone — keep the +52 prefix close to the input */
  .phone-row { gap: 0.45rem; }

  /* Progress dots centered, slightly tighter */
  .progress { justify-content: center; gap: 0.45rem; margin-top: 1.25rem; }
}

/* Very small phones (iPhone SE 1st gen / 4-inch) */
@media (max-width: 360px) {
  .ack-context  { font-size: 0.9rem; }
  .ack-statement { font-size: 1rem; }
  .sex-btn      { padding: 0.85rem 1.25rem; font-size: 1.1rem; }
  .sex-btn-other { padding: 0.85rem 1.1rem; font-size: 0.9rem; }
  .progress .dot { width: 5px; height: 5px; }
}

/* Landscape phones — minimize vertical waste so all steps fit */
@media (max-height: 520px) and (orientation: landscape) {
  .mark { margin-top: 1rem; }
  .flow { margin-top: 1.25rem; }
  .foot { margin-top: 1rem; }
  .ack-context, .ack-statement { line-height: 1.35; }
}