/* Fatefully website v0 — warm editorial, trust-led, mobile-first */

:root,
[data-theme='light'] {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --color-bg: #fbf5ed;
  --color-surface: #fffaf4;
  --color-surface-2: #f5eadf;
  --color-surface-offset: #efe0d1;
  --color-surface-offset-2: #e5d0bd;
  --color-divider: color-mix(in oklab, #4a271f 14%, transparent);
  --color-border: color-mix(in oklab, #4a271f 20%, transparent);
  --color-text: #2b1814;
  --color-text-muted: #755f56;
  --color-text-faint: #a89085;
  --color-text-inverse: #fff8ef;
  --color-primary: #8b2f25;
  --color-primary-hover: #6f211b;
  --color-primary-active: #531713;
  --color-primary-highlight: #ead0c8;
  --color-gold: #b7772e;
  --color-gold-soft: #f0d3a6;
  --color-blush: #d99d91;
  --color-success: #4b7243;
  --color-error: #9c2f34;
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.15rem;
  --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px oklch(0.25 0.04 45 / 0.08);
  --shadow-md: 0 8px 24px oklch(0.25 0.04 45 / 0.1);
  --shadow-lg: 0 24px 80px oklch(0.25 0.04 45 / 0.16);
  --content-narrow: 680px;
  --content-default: 980px;
  --content-wide: 1180px;
  --font-display: 'Instrument Serif', 'Noto Serif TC', Georgia, serif;
  --font-body: 'Work Sans', 'Noto Sans TC', system-ui, sans-serif;
}

[data-theme='dark'] {
  --color-bg: #17100e;
  --color-surface: #211815;
  --color-surface-2: #281d19;
  --color-surface-offset: #31231f;
  --color-surface-offset-2: #3c2a25;
  --color-divider: color-mix(in oklab, #f0d4c7 12%, transparent);
  --color-border: color-mix(in oklab, #f0d4c7 18%, transparent);
  --color-text: #f5e5d7;
  --color-text-muted: #c2a99c;
  --color-text-faint: #8b746b;
  --color-text-inverse: #241613;
  --color-primary: #e7a092;
  --color-primary-hover: #f0b4a9;
  --color-primary-active: #f6c9c0;
  --color-primary-highlight: #55312c;
  --color-gold: #e4b66f;
  --color-gold-soft: #5a4225;
  --color-blush: #d58f85;
  --color-success: #93c088;
  --color-error: #e87f86;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.22);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.28);
  --shadow-lg: 0 24px 80px oklch(0 0 0 / 0.38);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background:
    radial-gradient(circle at 10% 0%, color-mix(in oklab, var(--color-gold-soft) 36%, transparent), transparent 31rem),
    linear-gradient(135deg, var(--color-bg), color-mix(in oklab, var(--color-bg) 78%, var(--color-surface-offset)));
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3 {
  text-wrap: balance;
  line-height: 1.05;
}

p,
li {
  text-wrap: pretty;
  max-width: 72ch;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a,
input,
select,
textarea {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

button {
  cursor: pointer;
  border: 0;
  background: none;
}

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

::selection {
  background: color-mix(in oklab, var(--color-primary) 24%, transparent);
  color: var(--color-text);
}

.skip-link {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 100;
  transform: translateY(-180%);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-5);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: color-mix(in oklab, var(--color-bg) 84%, transparent);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}

.nav-shell {
  width: min(calc(100% - var(--space-6)), var(--content-wide));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 600;
  letter-spacing: -0.02em;
  min-height: 44px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  color: var(--color-primary);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-text strong {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
}

.brand-text span {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-links a,
.lang-toggle,
.theme-toggle {
  min-height: 44px;
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.nav-links a:hover,
.lang-toggle:hover,
.theme-toggle:hover {
  background: color-mix(in oklab, var(--color-surface-offset) 72%, transparent);
  color: var(--color-text);
}

.theme-toggle {
  width: 44px;
  padding: 0;
  display: grid;
  place-items: center;
}

.button,
.form-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
}

.button-primary,
.form-button {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.button-primary:hover,
.form-button:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button-secondary {
  border: 1px solid var(--color-border);
  background: color-mix(in oklab, var(--color-surface) 74%, transparent);
  color: var(--color-text);
}

.button-secondary:hover {
  background: var(--color-surface);
  border-color: color-mix(in oklab, var(--color-primary) 38%, var(--color-border));
}

.hero,
.page-hero,
.section,
.footer-shell {
  width: min(calc(100% - var(--space-6)), var(--content-wide));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(19rem, 0.82fr);
  gap: clamp(var(--space-10), 7vw, var(--space-24));
  align-items: center;
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: '';
  width: 2.25rem;
  height: 1px;
  background: currentColor;
}

h1 {
  margin-top: var(--space-5);
  max-width: 11ch;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 400;
  letter-spacing: -0.045em;
}

.hero-copy {
  margin-top: var(--space-6);
  color: var(--color-text-muted);
  font-size: var(--text-base);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.trust-row span {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: color-mix(in oklab, var(--color-surface) 62%, transparent);
  padding: var(--space-2) var(--space-3);
}

.destiny-card {
  position: relative;
  min-height: 34rem;
  border: 1px solid var(--color-border);
  border-radius: clamp(var(--radius-xl), 2vw, 2rem);
  background:
    linear-gradient(160deg, color-mix(in oklab, var(--color-surface) 94%, transparent), color-mix(in oklab, var(--color-surface-offset) 62%, transparent)),
    radial-gradient(circle at 80% 18%, color-mix(in oklab, var(--color-blush) 38%, transparent), transparent 12rem);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.thread-line {
  position: absolute;
  inset: var(--space-8);
  color: var(--color-primary);
  opacity: 0.72;
}

.profile-panel {
  position: absolute;
  right: var(--space-6);
  bottom: var(--space-6);
  left: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 86%, transparent);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(12px);
  padding: var(--space-5);
}

.panel-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.score {
  margin-top: var(--space-4);
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-4);
}

.score strong {
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 5.4rem);
  font-weight: 400;
  line-height: 0.92;
}

.score span {
  max-width: 16ch;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.pillar-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.pillar {
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--color-primary-highlight) 55%, transparent);
  padding: var(--space-3);
  text-align: center;
}

.pillar span {
  display: block;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.pillar strong {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
}

.section {
  padding-block: clamp(var(--space-14, 3.5rem), 8vw, var(--space-24));
}

.section-narrow {
  width: min(calc(100% - var(--space-6)), var(--content-default));
}

.section-kicker {
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section h2,
.page-hero h1 {
  margin-top: var(--space-3);
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: -0.035em;
}

.section-lede {
  margin-top: var(--space-5);
  color: var(--color-text-muted);
}

.scenario-grid {
  margin-top: var(--space-10);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-4);
}

.scenario-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 76%, transparent);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  box-shadow: var(--shadow-sm);
}

.scenario-card.large {
  grid-row: span 2;
}

.scenario-card .number {
  color: var(--color-text-faint);
  font-family: var(--font-display);
  font-size: var(--text-xl);
}

.scenario-card h3 {
  margin-top: var(--space-5);
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.scenario-card p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
}

.method-panel {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-6);
  align-items: stretch;
  margin-top: var(--space-10);
}

.method-aside,
.method-list {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 76%, transparent);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
}

.method-aside {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 24rem;
}

.method-aside strong {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1;
}

.method-aside p {
  color: var(--color-text-muted);
}

.method-list {
  display: grid;
  gap: var(--space-5);
}

.method-step {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--space-4);
  align-items: start;
}

.method-step > span {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-weight: 700;
}

.method-step h3 {
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}

.method-step p {
  margin-top: var(--space-1);
  color: var(--color-text-muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(var(--space-8), 7vw, var(--space-20));
  align-items: center;
}

.note-card {
  border: 1px solid var(--color-border);
  border-radius: clamp(var(--radius-xl), 2vw, 2rem);
  background: color-mix(in oklab, var(--color-primary-highlight) 36%, var(--color-surface));
  padding: clamp(var(--space-6), 5vw, var(--space-10));
}

.note-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
}

.note-card p,
.note-card li {
  color: var(--color-text-muted);
}

.note-card ul {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-left: var(--space-5);
}

.cta-band {
  width: min(calc(100% - var(--space-6)), var(--content-wide));
  margin: var(--space-12) auto;
  border-radius: clamp(1.4rem, 4vw, 3rem);
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 92%, #000 8%), color-mix(in oklab, var(--color-primary-active) 78%, #000)),
    var(--color-primary);
  color: var(--color-text-inverse);
  padding: clamp(var(--space-8), 8vw, var(--space-20));
  overflow: hidden;
  position: relative;
}

.cta-band::after {
  content: '';
  position: absolute;
  width: 28rem;
  height: 28rem;
  right: -10rem;
  top: -14rem;
  border: 1px solid color-mix(in oklab, var(--color-text-inverse) 34%, transparent);
  border-radius: var(--radius-full);
}

.cta-band h2 {
  max-width: 13ch;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.05;
}

.cta-band p {
  margin-top: var(--space-4);
  color: color-mix(in oklab, var(--color-text-inverse) 82%, transparent);
}

.cta-band .button {
  margin-top: var(--space-8);
  background: var(--color-text-inverse);
  color: var(--color-primary-active);
}

.site-footer {
  border-top: 1px solid var(--color-divider);
  margin-top: var(--space-12);
}

.footer-shell {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-8);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.page-hero {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.page-hero h1 {
  max-width: 13ch;
}

.form-layout {
  width: min(calc(100% - var(--space-6)), var(--content-default));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(20rem, 1fr);
  gap: clamp(var(--space-8), 6vw, var(--space-20));
  align-items: start;
  padding-bottom: var(--space-24);
}

.form-copy {
  position: sticky;
  top: var(--space-24);
}

.form-copy h2 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
}

.form-copy p {
  margin-top: var(--space-4);
  color: var(--color-text-muted);
}

.form-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: color-mix(in oklab, var(--color-surface) 82%, transparent);
  box-shadow: var(--shadow-md);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
}

.form-grid {
  display: grid;
  gap: var(--space-5);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field label,
.fieldset legend {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  min-height: 48px;
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  padding: var(--space-3) var(--space-4);
}

.field textarea {
  min-height: 8rem;
  resize: vertical;
}

.field small,
.form-note {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.fieldset {
  border: 0;
  display: grid;
  gap: var(--space-3);
}

.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.choice {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  padding: var(--space-2) var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.choice input {
  accent-color: var(--color-primary);
}

.consent {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.consent input {
  margin-top: 0.35rem;
  accent-color: var(--color-primary);
}

.form-status {
  display: none;
  border-radius: var(--radius-md);
  background: color-mix(in oklab, var(--color-success) 13%, var(--color-surface));
  color: var(--color-text);
  padding: var(--space-4);
}

.form-status.is-visible {
  display: block;
}

.form-status[data-status='error'] {
  background: color-mix(in oklab, var(--color-error) 13%, var(--color-surface));
}

.form-status[data-status='pending'] {
  background: color-mix(in oklab, var(--color-gold) 16%, var(--color-surface));
}

.form-button:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

[data-lang='zh'] [data-i18n='en'],
[data-lang='en'] [data-i18n='zh'] {
  display: none !important;
}

@media (max-width: 860px) {
  .hero,
  .scenario-grid,
  .method-panel,
  .split-section,
  .form-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: var(--space-12);
  }

  .destiny-card {
    min-height: 30rem;
  }

  .method-aside {
    min-height: auto;
    gap: var(--space-8);
  }

  .form-copy {
    position: static;
  }
}

@media (max-width: 680px) {
  .nav-shell {
    align-items: flex-start;
  }

  .nav-links {
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .nav-links a[href='sign-up.html'] {
    display: none;
  }

  .brand-text span {
    display: none;
  }

  .hero-actions,
  .footer-shell {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .form-button {
    width: 100%;
  }

  h1 {
    font-size: clamp(3rem, 18vw, 4.8rem);
  }
}

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