:root {
  --bg: #F7F7FB;
  --bg-raised: #FFFFFF;
  --ink: #14161B;
  --ink-soft: #5B5F6B;
  --line: #E3E4EC;
  --accent: #5B4FE0;
  --accent-ink: #FFFFFF;
  --accent-soft: #ECE9FC;
  --finding: #B4661F;
  --finding-soft: #F5E3CE;
  --danger: #B23B32;
  --radius: 14px;
  --font-display: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --goal-deep-work: #5B4FE0;
  --goal-exercise: #DE5A32;
  --goal-eating: #1E9A56;
  --goal-reading: #1E7FD1;
  --goal-accent: var(--accent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10121A;
    --bg-raised: #181B26;
    --ink: #EEF0F5;
    --ink-soft: #9CA3B5;
    --line: #2B2F3D;
    --accent: #9089FF;
    --accent-ink: #171233;
    --accent-soft: #221E3F;
    --finding: #E2A35C;
    --finding-soft: #2E2313;
    --danger: #E08278;

    --goal-deep-work: #9089FF;
    --goal-exercise: #FF8B62;
    --goal-eating: #4FD98A;
    --goal-reading: #6FB6FF;
  }
}

:root[data-theme="dark"] {
  --bg: #10121A;
  --bg-raised: #181B26;
  --ink: #EEF0F5;
  --ink-soft: #9CA3B5;
  --line: #2B2F3D;
  --accent: #9089FF;
  --accent-ink: #171233;
  --accent-soft: #221E3F;
  --finding: #E2A35C;
  --finding-soft: #2E2313;
  --danger: #E08278;

  --goal-deep-work: #9089FF;
  --goal-exercise: #FF8B62;
  --goal-eating: #4FD98A;
  --goal-reading: #6FB6FF;
}

[data-goal="deep-work"] { --goal-accent: var(--goal-deep-work); }
[data-goal="exercise"] { --goal-accent: var(--goal-exercise); }
[data-goal="eating"] { --goal-accent: var(--goal-eating); }
[data-goal="reading"] { --goal-accent: var(--goal-reading); }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.shell {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 64px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 16px;
}

.brand {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand .dot { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  justify-content: flex-end;
  margin-right: 16px;
}
.site-nav a {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  text-decoration: none;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a.nav-cta {
  color: var(--accent);
}
@media (max-width: 640px) {
  .site-nav a:not(.nav-cta) { display: none; }
}

.theme-toggle {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink-soft);
  border-radius: 20px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  flex-shrink: 0;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-soft); }

main { flex: 1; }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 64px 8px 56px;
  text-align: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 320px;
  background: radial-gradient(circle at 20% 30%, color-mix(in srgb, var(--goal-deep-work) 32%, transparent), transparent 60%),
    radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--goal-exercise) 28%, transparent), transparent 55%),
    radial-gradient(circle at 40% 80%, color-mix(in srgb, var(--goal-eating) 26%, transparent), transparent 55%),
    radial-gradient(circle at 75% 75%, color-mix(in srgb, var(--goal-reading) 26%, transparent), transparent 55%);
  filter: blur(30px);
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  background: var(--bg-raised);
  border: 1px solid var(--line);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 40px;
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  text-wrap: balance;
  max-width: 18ch;
  margin-left: auto;
  margin-right: auto;
}
.hero-sub {
  font-size: 16.5px;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 auto 30px;
}
.hero-cta {
  display: inline-block;
  text-decoration: none;
  font-size: 15px;
  padding: 14px 26px;
}
.hero-stat {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
}
.hero-stat strong {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

/* ---- How it works ---- */
.how {
  padding: 8px 8px 56px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
}
.how h2 {
  font-size: 13px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-weight: 700;
  margin: 40px 0 32px;
}
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 44px;
}
@media (max-width: 720px) {
  .how-steps { grid-template-columns: 1fr; gap: 28px; }
}
.how-step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 14px;
}
.how-step h3 {
  font-size: 15.5px;
  margin: 0 0 6px;
}
.how-step p {
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0;
  max-width: 34ch;
}
.laws-block {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 26px;
}
.laws-intro {
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0 0 18px;
}
.laws-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 640px) {
  .laws-strip { grid-template-columns: repeat(2, 1fr); }
}
.laws-strip div {
  border-top: 2px solid var(--accent);
  padding-top: 10px;
}
.laws-strip strong {
  display: block;
  font-size: 13.5px;
  margin-bottom: 3px;
}
.laws-strip span {
  display: block;
  font-size: 12px;
  color: var(--ink-soft);
}

.quiz-section {
  padding: 8px 0 8px;
  scroll-margin-top: 24px;
}

.card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
}

@media (max-width: 480px) {
  .card { padding: 22px 18px; }
}

/* ---- Intro screen ---- */
.intro h2 {
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  text-wrap: balance;
}
.intro .lede {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0 0 24px;
}

.goal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 480px) {
  .goal-grid { grid-template-columns: 1fr; }
}
.goal-card {
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--line);
  border-top: 3px solid color-mix(in srgb, var(--goal-accent) 55%, var(--line));
  border-radius: 10px;
  padding: 16px 16px;
  cursor: pointer;
  font-family: inherit;
  color: var(--ink);
  transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}
.goal-card[data-goal="deep-work"] { --goal-accent: var(--goal-deep-work); }
.goal-card[data-goal="exercise"] { --goal-accent: var(--goal-exercise); }
.goal-card[data-goal="eating"] { --goal-accent: var(--goal-eating); }
.goal-card[data-goal="reading"] { --goal-accent: var(--goal-reading); }
.goal-card:hover {
  border-color: var(--goal-accent);
  background: color-mix(in srgb, var(--goal-accent) 8%, var(--bg));
}
.goal-card:active { transform: scale(0.99); }
.goal-card .goal-label {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 4px;
  display: block;
}
.goal-card .goal-sub {
  font-size: 13px;
  color: var(--ink-soft);
  display: block;
}

/* ---- Progress ---- */
.progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.progress-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.progress-track {
  flex: 1;
  height: 4px;
  background: var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--goal-accent);
  border-radius: 4px;
  transition: width 0.25s ease;
}

/* ---- Question ---- */
.question h2 {
  font-size: 21px;
  line-height: 1.3;
  margin: 0 0 20px;
  text-wrap: balance;
}
.options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.option-btn {
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.option-btn:hover {
  border-left-color: var(--goal-accent);
  background: color-mix(in srgb, var(--goal-accent) 10%, var(--bg-raised));
}
.option-btn:focus-visible {
  outline: 2px solid var(--goal-accent);
  outline-offset: 2px;
}

.back-link {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.back-link:hover { color: var(--ink); }

/* ---- Result ---- */
.readout-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--finding);
  background: var(--finding-soft);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.result h2 {
  font-size: 25px;
  line-height: 1.25;
  margin: 0 0 14px;
  text-wrap: balance;
}
.result .explanation {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0 0 26px;
}
.plan-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.plan-list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.plan-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: start;
}
.plan-day {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--goal-accent);
  border: 1px solid color-mix(in srgb, var(--goal-accent) 40%, var(--line));
  background: color-mix(in srgb, var(--goal-accent) 10%, var(--bg-raised));
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.plan-list p { margin: 0; font-size: 14.5px; padding-top: 3px; }

.capture {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.capture p {
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.capture p.signin-hint {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: 12px 0 0;
}
.capture-row {
  display: flex;
  gap: 8px;
}
@media (max-width: 480px) {
  .capture-row { flex-direction: column; }
}
.capture-row input[type="email"] {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  color: var(--ink);
  font-family: inherit;
}
.capture-row input[type="email"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.btn {
  border: none;
  border-radius: 8px;
  padding: 11px 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.05); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.btn-secondary {
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-secondary:hover { border-color: var(--ink-soft); }
.form-note {
  font-family: var(--font-mono);
  font-size: 11.5px;
  margin-top: 10px;
  min-height: 14px;
}
.form-note.success { color: var(--accent); }
.form-note.error { color: var(--danger); }

.retake {
  margin-top: 22px;
  text-align: center;
}

.site-footer {
  margin-top: 36px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-soft);
}
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--accent); }

/* ---- Account page ---- */
.account-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.account-header h2 { margin: 0 0 4px; font-size: 20px; }
.account-header .lede { margin: 0; font-size: 13.5px; }

.result-item {
  border: 1px solid var(--line);
  border-left: 3px solid color-mix(in srgb, var(--goal-accent) 55%, var(--line));
  border-radius: 8px;
  padding: 16px 18px;
  margin-bottom: 12px;
}
.result-item-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.result-item-head strong { font-size: 14.5px; }
.result-item-pattern {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--goal-accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.result-item-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-soft);
  margin-left: auto;
}
.checkin-row {
  display: flex;
  gap: 8px;
}
.checkin-day {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.checkin-day:hover { border-color: var(--goal-accent); }
.checkin-day.checked {
  background: var(--goal-accent);
  border-color: var(--goal-accent);
  color: var(--accent-ink);
}
.checkin-day:disabled { opacity: 0.6; cursor: default; }