:root {
  --ink: #080a0f;
  --ink-soft: #151820;
  --cyan: #00c8f4;
  --cyan-deep: #007b97;
  --orange: #ff5c35;
  --cream: #f7f4ee;
  --paper: #ffffff;
  --muted: #77746f;
  --line: rgba(8, 10, 15, 0.16);
  --rail: clamp(17rem, 24vw, 22rem);
  --shadow: 0 28px 80px rgba(8, 10, 15, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ink);
  color-scheme: light;
  font-size: 16px;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--ink);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.fluid-filter {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}

button,
input,
textarea {
  font: inherit;
}

button,
label,
input[type="checkbox"] {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.progress-line {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: 5px;
  background: rgba(255, 255, 255, 0.12);
}

.progress-line span {
  display: block;
  width: 14.285%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transition: width 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.portal-shell {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  min-height: 100vh;
}

.house-rail {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  padding: 2.3rem 2.1rem 1.8rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 8%, rgba(0, 200, 244, 0.18), transparent 30%),
    radial-gradient(circle at 100% 76%, rgba(255, 92, 53, 0.16), transparent 34%),
    var(--ink);
  color: var(--cream);
}

.house-rail::after {
  position: absolute;
  right: -8rem;
  bottom: -9rem;
  width: 20rem;
  height: 20rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 48% 52% 44% 56%;
  box-shadow:
    0 0 0 1.6rem rgba(0, 200, 244, 0.035),
    0 0 0 3.2rem rgba(255, 92, 53, 0.025);
  content: "";
  transform: rotate(18deg);
}

.brand-lockup {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 1.02rem;
  letter-spacing: -0.03em;
}

.brand-orb {
  display: inline-block;
  width: 1.6rem;
  height: 1.6rem;
  border: 5px solid var(--cream);
  border-right-color: var(--orange);
  border-bottom-color: var(--cyan);
  border-radius: 50% 46% 52% 48%;
  transform: rotate(22deg);
}

.rail-copy {
  position: relative;
  z-index: 1;
  margin-top: clamp(3rem, 8vh, 6rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  line-height: 1.3;
}

.eyebrow.dark {
  color: var(--cyan-deep);
}

.rail-title {
  margin: 0;
  color: var(--cream);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.9rem, 3vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.step-nav {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.08rem;
  margin: auto 0;
}

.step-link {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.52rem 0.65rem;
  border: 0;
  border-left: 2px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  color: rgba(247, 244, 238, 0.48);
  cursor: pointer;
  text-align: left;
  transition: 180ms ease;
}

.step-link span {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.step-link b {
  font-size: 0.89rem;
  font-weight: 700;
}

.step-link:hover,
.step-link.is-complete {
  color: rgba(247, 244, 238, 0.78);
}

.step-link.is-active {
  border-left-color: var(--orange);
  background: rgba(255, 255, 255, 0.06);
  color: var(--cream);
}

.step-link:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.rail-footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1rem;
  color: rgba(247, 244, 238, 0.58);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rail-footer-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.admin-link-small {
  color: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  text-decoration: none;
  text-transform: inherit;
}

.admin-link-small:hover {
  color: var(--cyan);
}

.text-button {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
}

.text-button:hover {
  color: var(--cyan);
}

.stage {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--cream);
}

.mobile-header {
  display: none;
}

.screen {
  display: none;
  min-height: 100vh;
  animation: screen-in 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.screen.is-active {
  display: block;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.screen-inner {
  width: min(56rem, calc(100% - 7rem));
  margin: 0 auto;
  padding: clamp(5rem, 9vh, 7.5rem) 0 7rem;
}

.screen-inner.wide {
  width: min(67rem, calc(100% - 7rem));
}

.screen h1,
.screen h2 {
  margin: 0;
  font-family: "Arial Black", Arial, sans-serif;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.screen h1 {
  max-width: 14ch;
  font-size: clamp(3.3rem, 7.3vw, 7.5rem);
}

.screen h2 {
  max-width: 20ch;
  font-size: clamp(2.6rem, 5vw, 5.5rem);
}

.screen h2 em {
  color: var(--orange);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

.lede,
.intro {
  max-width: 44rem;
  color: #34343a;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.5;
}

.lede {
  max-width: 33rem;
  margin: 2rem 0 0;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
}

.intro {
  margin: 1.6rem 0 2.5rem;
}

.welcome-screen {
  position: relative;
  grid-template-columns: minmax(0, 1.32fr) minmax(17rem, 0.68fr);
  align-items: stretch;
}

.welcome-screen.is-active {
  display: grid;
}

.welcome-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem clamp(3rem, 7vw, 8rem);
}

.name-form {
  max-width: 39rem;
  margin-top: 3.4rem;
}

.name-form > label,
.direction-form label > span,
.direction-form legend {
  display: block;
  margin-bottom: 0.7rem;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.77rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.input-row {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
}

.input-row input {
  min-width: 0;
  flex: 1;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 1rem 1.1rem;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
}

.form-note {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.77rem;
  line-height: 1.5;
}

.button {
  display: inline-flex;
  min-height: 3.45rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0.8rem 1.15rem;
  cursor: pointer;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--orange);
  color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
}

.button.primary:hover {
  box-shadow: 7px 7px 0 var(--ink);
}

.button.ghost {
  background: transparent;
  color: var(--ink);
}

.button.ghost:hover {
  background: var(--paper);
}

.mark-panel {
  position: relative;
  display: grid;
  min-height: 100vh;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 52% 46%, rgba(255, 92, 53, 0.18), transparent 32%),
    linear-gradient(135deg, rgba(0, 200, 244, 0.14), transparent 48%),
    var(--ink);
}

.mark-panel::before {
  position: absolute;
  inset: 7%;
  border: 1px solid rgba(247, 244, 238, 0.12);
  content: "";
  animation: panel-current 12s ease-in-out infinite;
}

.mark-panel::after {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  border-radius: 46% 54% 58% 42% / 51% 42% 58% 49%;
  background: radial-gradient(circle, rgba(0, 200, 244, 0.2), rgba(255, 92, 53, 0.08) 48%, transparent 69%);
  content: "";
  filter: blur(22px);
  animation: fluid-current 10s ease-in-out infinite;
}

.mark-panel img {
  position: relative;
  z-index: 1;
  width: min(68%, 24rem);
  filter: url(#fingerprintFlow) saturate(1.08) contrast(1.05);
  will-change: transform, filter;
  animation: mark-flow 11s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
}

@keyframes mark-flow {
  0%, 100% { transform: translate3d(-1%, 1%, 0) scale(0.96) rotate(-1.5deg); }
  28% { transform: translate3d(1.5%, -1.2%, 0) scale(1.015) rotate(0.8deg); }
  63% { transform: translate3d(-0.5%, -0.4%, 0) scale(0.985) rotate(1.6deg); }
  82% { transform: translate3d(0.8%, 1.2%, 0) scale(1.01) rotate(-0.4deg); }
}

@keyframes fluid-current {
  0%, 100% { transform: translate(-4%, 2%) rotate(0deg) scale(0.94); opacity: 0.62; }
  50% { transform: translate(5%, -3%) rotate(18deg) scale(1.08); opacity: 1; }
}

@keyframes panel-current {
  0%, 100% { transform: rotate(-1deg) scale(0.99); border-radius: 1%; }
  50% { transform: rotate(1deg) scale(1.01); border-radius: 5%; }
}

.signal-label {
  position: absolute;
  top: 2.5rem;
  left: 2.5rem;
  z-index: 2;
  color: var(--cream);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.67rem;
  letter-spacing: 0.13em;
}

.signal-label.align-right {
  top: auto;
  right: 2.5rem;
  bottom: 2.5rem;
  left: auto;
  color: var(--orange);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.principle-card {
  display: flex;
  min-height: 15.5rem;
  flex-direction: column;
  padding: 1.4rem;
  border: 2px solid var(--ink);
}

.principle-card > span {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.principle-card h3 {
  margin: auto 0 0.75rem;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 1.25rem;
  line-height: 1.05;
}

.principle-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
}

.principle-card.cyan { background: var(--cyan); }
.principle-card.orange { background: var(--orange); }
.principle-card.ink { background: var(--ink); color: var(--cream); }
.principle-card.outline { background: transparent; }

.screen-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3.5rem;
}

.fixed-actions {
  width: min(67rem, calc(100% - 7rem));
  margin: 0 auto;
  padding: 0 0 3.5rem;
}

.screen-inner.split {
  display: grid;
  width: min(68rem, calc(100% - 7rem));
  grid-template-columns: minmax(0, 0.9fr) minmax(24rem, 1.1fr);
  gap: clamp(3rem, 7vw, 7rem);
}

.promise-list {
  margin: -0.5rem 0 0;
  padding: 0;
  list-style: none;
}

.promise-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 1rem;
  border-top: 2px solid var(--ink);
  padding: 1.15rem 0;
}

.promise-list li:last-child {
  border-bottom: 2px solid var(--ink);
}

.promise-list li > span {
  color: var(--orange);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.7rem;
}

.promise-list b {
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 1.05rem;
}

.promise-list p {
  margin: 0.32rem 0 0;
  color: #4b4b50;
  font-size: 0.9rem;
  line-height: 1.4;
}

.commitment-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.commitment-list label {
  position: relative;
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  align-content: center;
  min-height: 7.25rem;
  border: 2px solid var(--ink);
  padding: 1rem 1rem 1rem 0.9rem;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: 160ms ease;
}

.commitment-list label:hover {
  background: var(--paper);
  transform: translateY(-2px);
}

.commitment-list label:has(input:checked) {
  background: var(--cyan);
  box-shadow: 4px 4px 0 var(--ink);
}

.commitment-list input,
.final-agreement input,
.chip-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkmark {
  grid-row: 1 / span 2;
  display: grid;
  width: 1.45rem;
  height: 1.45rem;
  place-items: center;
  border: 2px solid var(--ink);
  background: var(--paper);
}

input:checked + .checkmark::after {
  content: "✓";
  font-weight: 900;
  line-height: 1;
}

.commitment-list b {
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 1rem;
}

.commitment-list small {
  margin-top: 0.3rem;
  color: #3d3d42;
  font-size: 0.82rem;
  line-height: 1.35;
}

.validation-message {
  min-height: 1.25rem;
  margin: 0.8rem 0 0;
  color: #aa260c;
  font-size: 0.85rem;
  font-weight: 700;
}

.phase-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 2px solid var(--ink);
}

.phase-tab {
  display: flex;
  min-height: 5.5rem;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.35rem;
  border: 0;
  border-right: 2px solid var(--ink);
  padding: 0.95rem 1.1rem;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.phase-tab:last-child {
  border-right: 0;
}

.phase-tab span {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.phase-tab b {
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.95rem;
}

.phase-tab.is-active {
  background: var(--orange);
}

.phase-panel {
  display: grid;
  grid-template-columns: 9rem 1fr;
  min-height: 18rem;
  align-items: center;
  gap: 2.8rem;
  border: 2px solid var(--ink);
  border-top: 0;
  padding: 2rem 3rem;
  background: var(--paper);
}

.phase-number {
  color: var(--cyan);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 7rem;
  letter-spacing: -0.1em;
  line-height: 1;
}

.phase-kicker {
  margin: 0 0 0.7rem;
  color: var(--cyan-deep);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.phase-panel h3 {
  max-width: 31rem;
  margin: 0;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: clamp(1.55rem, 3vw, 2.5rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.phase-panel ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1.4rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.phase-panel li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.88rem;
  line-height: 1.45;
}

.phase-panel li::before {
  position: absolute;
  top: 0.55em;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  background: var(--orange);
  content: "";
}

.direction-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem 1rem;
}

.direction-form label,
.focus-field {
  margin: 0;
  border: 0;
  padding: 0;
}

.direction-form .full-field,
.focus-field {
  grid-column: 1 / -1;
}

.direction-form textarea {
  width: 100%;
  min-height: 7rem;
  resize: vertical;
  border: 2px solid var(--ink);
  border-radius: 0;
  padding: 0.95rem 1rem;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.45;
}

.direction-form .full-field textarea {
  min-height: 6rem;
  font-size: 1.05rem;
}

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip-grid label {
  position: relative;
  cursor: pointer;
}

.chip-grid span {
  display: inline-flex;
  min-height: 2.65rem;
  align-items: center;
  border: 2px solid var(--ink);
  padding: 0.55rem 0.8rem;
  background: transparent;
  font-size: 0.84rem;
  font-weight: 700;
}

.chip-grid input:checked + span {
  background: var(--cyan);
  box-shadow: 3px 3px 0 var(--ink);
}

.finish-screen {
  background: var(--cream);
}

.finish-layout {
  display: grid;
  min-height: calc(100vh - 6rem);
  grid-template-columns: minmax(0, 1.15fr) minmax(21rem, 0.85fr);
}

.finish-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem clamp(3rem, 6vw, 7rem) 4rem;
}

.summary-card {
  max-width: 43rem;
  border: 2px solid var(--ink);
  padding: 1.35rem;
  background: var(--paper);
  box-shadow: 7px 7px 0 var(--cyan);
}

.summary-card > span {
  color: var(--cyan-deep);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.summary-card > p {
  margin: 0.75rem 0 1.4rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.25rem, 2.1vw, 1.8rem);
  font-weight: 700;
  line-height: 1.25;
}

.summary-card > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
}

.summary-card b {
  font-family: "Arial Black", Arial, sans-serif;
}

.summary-card small {
  color: var(--muted);
  text-align: right;
}

.final-agreement {
  position: relative;
  display: grid;
  max-width: 43rem;
  grid-template-columns: 1.7rem 1fr;
  align-items: start;
  gap: 0.8rem;
  margin-top: 1.8rem;
  cursor: pointer;
  line-height: 1.45;
}

.finish-actions,
.completion-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.finish-mark {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
}

.finish-mark img {
  width: min(84%, 34rem);
  transform: rotate(4deg) scale(1.05);
}

.finish-mark p {
  position: absolute;
  right: 2rem;
  bottom: 2rem;
  margin: 0;
  color: var(--orange);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: clamp(1rem, 2vw, 1.6rem);
  line-height: 0.95;
  text-align: right;
}

.finish-back {
  width: auto;
  margin: 0;
  padding: 0 0 2rem 3rem;
}

.completion-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: rgba(8, 10, 15, 0.88);
  backdrop-filter: blur(12px);
}

.completion-overlay[hidden] {
  display: none;
}

.completion-card {
  position: relative;
  width: min(44rem, 100%);
  border: 2px solid var(--ink);
  padding: clamp(2rem, 5vw, 4.5rem);
  overflow: hidden;
  background: var(--cream);
  box-shadow: 11px 11px 0 var(--orange), -11px -11px 0 var(--cyan);
}

.completion-card h2 {
  max-width: 11ch;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: clamp(2.4rem, 6vw, 4.7rem);
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.completion-card > p:not(.eyebrow) {
  max-width: 35rem;
  margin: 1.5rem 0 2rem;
  font-size: 1.05rem;
  line-height: 1.5;
}

.completion-signal {
  position: absolute;
  top: -2rem;
  right: 1rem;
  color: rgba(0, 200, 244, 0.14);
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 12rem;
  line-height: 1;
}

@media (max-width: 1080px) {
  :root { --rail: 16.5rem; }

  .house-rail { padding-inline: 1.5rem; }
  .welcome-screen { grid-template-columns: minmax(0, 1.2fr) minmax(15rem, 0.58fr); }
  .welcome-copy { padding-inline: 3rem; }
  .principle-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principle-card { min-height: 11rem; }
  .finish-layout { grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr); }
}

@media (prefers-reduced-motion: reduce) {
  .mark-panel img,
  .mark-panel::before,
  .mark-panel::after {
    animation: none;
  }

  .mark-panel img {
    filter: saturate(1.08) contrast(1.05);
  }
}

@media (max-width: 820px) {
  .portal-shell { display: block; }
  .house-rail { display: none; }
  .stage { min-height: 100svh; }
  .mobile-header {
    display: flex;
    min-height: 4.3rem;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.2rem;
    background: var(--ink);
    color: var(--cream);
  }
  .mobile-header > span { color: var(--cyan); font-size: 0.75rem; letter-spacing: 0.1em; }
  .screen { min-height: calc(100svh - 4.3rem); }
  .screen-inner,
  .screen-inner.wide,
  .screen-inner.split,
  .fixed-actions {
    width: min(100% - 2.4rem, 46rem);
  }
  .screen-inner { padding: 3.2rem 0 6rem; }
  .welcome-screen.is-active { display: block; }
  .welcome-copy { min-height: calc(100svh - 4.3rem); padding: 3rem 1.2rem; }
  .mark-panel { display: none; }
  .input-row { align-items: stretch; flex-direction: column; }
  .screen-inner.split { display: block; }
  .promise-list { margin-top: 2.5rem; }
  .commitment-list { grid-template-columns: 1fr; }
  .phase-panel { grid-template-columns: 5rem 1fr; gap: 1.5rem; padding: 1.5rem; }
  .phase-number { font-size: 4.8rem; }
  .phase-panel ul { grid-template-columns: 1fr; }
  .direction-form { grid-template-columns: 1fr; }
  .direction-form label { grid-column: 1; }
  .finish-layout { display: block; }
  .finish-copy { min-height: calc(100svh - 4.3rem); padding: 3.2rem 1.2rem 5rem; }
  .finish-mark { min-height: 24rem; }
  .finish-back { padding-left: 1.2rem; }
}

@media (max-width: 540px) {
  .screen h1 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .screen h2 { font-size: clamp(2.35rem, 12vw, 3.7rem); }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-card { min-height: 9.5rem; }
  .screen-actions { align-items: stretch; flex-direction: column-reverse; }
  .screen-actions .button { width: 100%; }
  .phase-tabs { grid-template-columns: 1fr; }
  .phase-tab { min-height: 4.5rem; border-right: 0; border-bottom: 2px solid var(--ink); }
  .phase-tab:last-child { border-bottom: 0; }
  .phase-panel { grid-template-columns: 1fr; }
  .phase-number { font-size: 4rem; }
  .summary-card > div { align-items: flex-start; flex-direction: column; }
  .summary-card small { text-align: left; }
  .finish-actions .button,
  .completion-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}