/* ==========================================================================
   Dream Reserve Travel — Trip Match Quiz
   Art direction: elevated editorial luxury travel (Robb Report / Condé Nast
   Traveler). Deep ink-navy primary, warm ivory surface, brass/gold accent.
   Fonts: Fraunces (display serif) + General Sans (body sans).
   ========================================================================== */

/* ---------- Base reset (per shared/01-design-tokens.md) ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.15; }
p, li, figcaption { text-wrap: pretty; }

::selection {
  background: color-mix(in oklab, var(--color-gold) 30%, transparent);
  color: var(--color-ink);
}

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

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

button { cursor: pointer; background: none; border: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* ---------- Design tokens ---------- */
:root {
  /* Type scale */
  --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, 3.25rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);
  --text-hero: clamp(2.75rem, 1rem + 5.5vw, 5.5rem);

  /* Spacing (4px system) */
  --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;

  /* ---- Art-directed palette: ink navy / warm ivory / brass gold ---- */
  --color-bg: #faf6ee;              /* warm ivory */
  --color-surface: #fffdf8;
  --color-surface-2: #f4ecdc;       /* deeper cream for cards */
  --color-surface-offset: #efe4cd;
  --color-border: #ddccac;
  --color-divider: #e5d8ba;

  --color-ink: #0f2438;             /* deep ink-navy */
  --color-ink-2: #16324a;
  --color-text: #16283a;
  --color-text-muted: #5b6b7a;
  --color-text-faint: #93a0ac;
  --color-text-inverse: #f7f1e4;

  --color-gold: #c8a24d;            /* brass / gold accent */
  --color-gold-deep: #9c7a2e;
  --color-gold-hover: #b48d3c;
  --color-gold-highlight: #f0e3c2;

  --color-success: #4f7a52;
  --color-error: #a1433a;
  --color-error-highlight: #f2ddd8;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-screen: 520ms cubic-bezier(0.22, 1, 0.36, 1);

  --shadow-sm: 0 1px 3px rgba(15, 36, 56, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 36, 56, 0.10);
  --shadow-lg: 0 24px 64px rgba(15, 36, 56, 0.16);

  --content-narrow: 640px;
  --content-default: 780px;
  --content-wide: 1080px;

  --font-display: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-body: 'General Sans', 'Work Sans', -apple-system, sans-serif;
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 12% 8%, color-mix(in oklab, var(--color-gold) 6%, transparent), transparent 42%),
    radial-gradient(circle at 88% 92%, color-mix(in oklab, var(--color-ink) 6%, transparent), transparent 45%);
  overflow-x: hidden;
}

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

h1, h2, h3 { font-family: var(--font-display); color: var(--color-ink); font-weight: 600; }

/* ---------- Layout shell ---------- */
.app-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.screen {
  min-height: 100dvh;
  width: 100%;
  flex-direction: column;
}
.screen:not(.is-active) { display: none !important; }
.screen.is-active { display: flex; }

/* screen transition */
.screen-transition-enter {
  animation: screenFadeIn var(--transition-screen) both;
}
@keyframes screenFadeIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ---------- Top bar / brand header ---------- */
.top-bar {
  width: 100%;
  padding: var(--space-5) 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-logo { color: var(--color-ink); height: 30px; width: auto; }
.top-bar-logo { height: 26px; width: auto; display: block; }

/* ---------- Progress bar ---------- */
.progress-track {
  width: 100%;
  height: 3px;
  background: var(--color-divider);
  position: relative;
  overflow: hidden;
}
.progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold-deep), var(--color-gold));
  transition: width 480ms cubic-bezier(0.22, 1, 0.36, 1);
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-3) 0 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* ==========================================================================
   INTRO SCREEN
   ========================================================================== */
.intro-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-6) var(--space-24);
}
.intro-content {
  max-width: 640px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}
.intro-logo {
  width: 240px;
  max-width: 80%;
  height: auto;
}
.intro-eyebrow-sub {
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: -1rem;
}
.intro-title {
  font-size: var(--text-3xl);
  line-height: 1.05;
  color: var(--color-ink);
}
.intro-title em {
  font-style: italic;
  color: var(--color-gold-deep);
}
.intro-copy {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 52ch;
  line-height: 1.6;
}
.intro-meta {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(180deg, var(--color-gold), var(--color-gold-deep));
  color: var(--color-ink);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(180deg, #d4b05c, var(--color-gold-hover));
}
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-2);
  border-color: var(--color-gold-deep);
}

.link-quiet {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border);
}
.link-quiet:hover { color: var(--color-ink); text-decoration-color: var(--color-gold-deep); }

/* ==========================================================================
   QUIZ SCREEN
   ========================================================================== */
.quiz-screen { flex: 1; display: flex; flex-direction: column; }
.quiz-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-6) var(--space-16);
}
.quiz-card {
  width: 100%;
  max-width: var(--content-default);
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.quiz-question-label {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold-deep);
  font-weight: 600;
}
.quiz-question {
  font-size: var(--text-2xl);
  color: var(--color-ink);
  line-height: 1.15;
}
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.quiz-option {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  text-align: left;
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-base);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.quiz-option:hover {
  border-color: var(--color-gold);
  background: var(--color-surface-2);
  transform: translateX(4px);
}
.quiz-option.is-selected {
  border-color: var(--color-gold-deep);
  background: var(--color-gold-highlight);
  box-shadow: var(--shadow-md);
}
.quiz-option-index {
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.quiz-option.is-selected .quiz-option-index {
  background: var(--color-gold-deep);
  border-color: var(--color-gold-deep);
  color: var(--color-text-inverse);
}
.quiz-option-label { flex: 1; }

.quiz-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* ==========================================================================
   RESULT SCREEN
   ========================================================================== */
.result-screen { flex: 1; }
.result-hero {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 62vh;
  overflow: hidden;
  background: var(--color-ink);
}
.result-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.result-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15,36,56,0.05) 0%, rgba(15,36,56,0.75) 100%);
}
.result-hero-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: var(--space-10) var(--space-6);
  color: var(--color-text-inverse);
  z-index: 2;
}
.result-hero-eyebrow {
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.result-hero-title {
  font-size: var(--text-3xl);
  color: var(--color-text-inverse);
  line-height: 1.05;
}
.result-hero-tagline {
  font-size: var(--text-lg);
  color: color-mix(in oklab, var(--color-text-inverse) 82%, transparent);
  margin-top: var(--space-2);
  font-style: italic;
  font-family: var(--font-display);
}

.result-secondary-banner {
  background: var(--color-gold-highlight);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-ink);
}
.result-secondary-banner strong { color: var(--color-gold-deep); }

.result-body {
  padding: var(--space-16) var(--space-6) var(--space-8);
}
.result-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}
.result-lede {
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.7;
  max-width: 68ch;
}
.result-traits h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-5);
}
.trait-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.trait-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.trait-icon {
  flex: none;
  color: var(--color-gold-deep);
  margin-top: 2px;
}

.result-cta-block {
  text-align: center;
  padding: var(--space-10) var(--space-6) var(--space-20);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.result-cta-line {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 46ch;
}

/* ==========================================================================
   FORM SCREEN
   ========================================================================== */
.form-screen { flex: 1; display: flex; }
.form-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-6);
}
.form-card {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.form-header { text-align: center; display: flex; flex-direction: column; gap: var(--space-3); }
.form-title { font-size: var(--text-2xl); line-height: 1.15; }
.form-subhead { font-size: var(--text-base); color: var(--color-text-muted); }

.form-grid { display: flex; flex-direction: column; gap: var(--space-5); }
.form-row-split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }

.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-text-muted);
}
.field .field-hint {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}
.field .field-caption {
  margin: calc(var(--space-2) * -1) 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  line-height: 1.4;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: var(--text-base);
  color: var(--color-text);
  width: 100%;
}
.field input:focus, .field select:focus {
  border-color: var(--color-gold-deep);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-gold) 22%, transparent);
  outline: none;
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' stroke='%239c7a2e' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-5) center;
  padding-right: var(--space-10);
}
.field-error {
  font-size: var(--text-xs);
  color: var(--color-error);
  display: none;
}
.field.has-error input, .field.has-error select { border-color: var(--color-error); }
.field.has-error .field-error { display: block; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
}
.checkbox-row input[type="checkbox"] {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-gold-deep);
}
.checkbox-row label {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}

.form-submit-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-2);
}
.form-submit-row .btn-primary { width: 100%; padding-block: var(--space-5); font-size: var(--text-base); }

/* ==========================================================================
   CONFIRMATION SCREEN
   ========================================================================== */
.confirm-screen { flex: 1; display: flex; align-items: center; justify-content: center; }
.confirm-content {
  max-width: 600px;
  text-align: center;
  padding: var(--space-16) var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}
.confirm-icon { color: var(--color-gold-deep); width: 52px; height: 52px; }
.confirm-title { font-size: var(--text-2xl); line-height: 1.15; }
.confirm-body { font-size: var(--text-lg); color: var(--color-text-muted); line-height: 1.65; max-width: 52ch; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   RESPONSIVE — MOBILE (< 640px)
   ========================================================================== */
@media (max-width: 640px) {
  .wrap { padding-inline: var(--space-4); }
  .intro-screen { padding: var(--space-10) var(--space-4) var(--space-16); }
  .intro-title { font-size: var(--text-2xl); }
  .intro-copy { font-size: var(--text-base); }

  .quiz-body { padding: var(--space-6) var(--space-4) var(--space-10); }
  .quiz-question { font-size: var(--text-xl); }
  .quiz-option { padding: var(--space-4); }
  .quiz-nav { flex-wrap: wrap; }

  .result-hero { aspect-ratio: 4 / 5; max-height: 68vh; }
  .result-hero-title { font-size: var(--text-2xl); }
  .result-hero-caption { padding: var(--space-6) var(--space-4); }
  .result-body { padding: var(--space-10) var(--space-4) var(--space-4); }
  .trait-list { grid-template-columns: 1fr; }
  .result-cta-block { padding: var(--space-8) var(--space-4) var(--space-16); }

  .form-wrap { padding: var(--space-10) var(--space-4); }
  .form-row-split { grid-template-columns: 1fr; }
  .form-title { font-size: var(--text-xl); }

  .confirm-content { padding: var(--space-10) var(--space-4); }
  .confirm-title { font-size: var(--text-xl); }
  .confirm-body { font-size: var(--text-base); }

  .btn { width: 100%; }
  .quiz-nav .btn-ghost { width: auto; }
}

@media (min-width: 641px) {
  .btn.btn-block-mobile-only { width: auto; }
}