/* ===========================
   DESIGN TOKENS
   =========================== */
:root,
[data-theme='light'] {
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Nunito', 'Helvetica Neue', sans-serif;

  --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, 1.4rem + 2vw, 3rem);

  --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;

  /* Palette — тёплая ночь, светлячки */
  --color-bg: #f5f3ef;
  --color-surface: #faf9f6;
  --color-surface-2: #ffffff;
  --color-surface-offset: #edeae4;
  --color-border: #d8d4cc;
  --color-divider: #e4e0d8;

  --color-text: #272318;
  --color-text-muted: #6b6760;
  --color-text-faint: #b0ada6;
  --color-text-inverse: #f5f3ef;

  /* Accent — золотистый янтарь светлячка */
  --color-primary: #8a6200;
  --color-primary-hover: #6e4e00;
  --color-primary-active: #523a00;
  --color-primary-light: #f5e9c8;
  --color-primary-glow: rgba(138, 98, 0, 0.15);

  /* Декоративный тёмный (для рубашек карт) */
  --color-dark-surface: #1a1a2e;
  --color-dark-surface-2: #16213e;
  --color-dark-accent: #c9922a;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-card: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(39, 35, 24, 0.07);
  --shadow-md: 0 4px 16px rgba(39, 35, 24, 0.1);
  --shadow-lg: 0 12px 40px rgba(39, 35, 24, 0.14);
  --shadow-card: 0 8px 32px rgba(39, 35, 24, 0.12);

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme='dark'] {
  --color-bg: #13120e;
  --color-surface: #1a1916;
  --color-surface-2: #1f1e1a;
  --color-surface-offset: #161512;
  --color-border: #33312c;
  --color-divider: #2a2924;

  --color-text: #e8e4dc;
  --color-text-muted: #9e9a92;
  --color-text-faint: #5c5a55;
  --color-text-inverse: #13120e;

  --color-primary: #d4a440;
  --color-primary-hover: #e8b84c;
  --color-primary-active: #f0c65a;
  --color-primary-light: #2e2510;
  --color-primary-glow: rgba(212, 164, 64, 0.2);

  --color-dark-surface: #0e0e1a;
  --color-dark-surface-2: #0a0a14;
  --color-dark-accent: #d4a440;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #13120e;
    --color-surface: #1a1916;
    --color-surface-2: #1f1e1a;
    --color-surface-offset: #161512;
    --color-border: #33312c;
    --color-divider: #2a2924;
    --color-text: #e8e4dc;
    --color-text-muted: #9e9a92;
    --color-text-faint: #5c5a55;
    --color-text-inverse: #13120e;
    --color-primary: #d4a440;
    --color-primary-hover: #e8b84c;
    --color-primary-active: #f0c65a;
    --color-primary-light: #2e2510;
    --color-primary-glow: rgba(212, 164, 64, 0.2);
    --color-dark-surface: #0e0e1a;
    --color-dark-accent: #d4a440;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.45);
  }
}

/* ===========================
   BASE
   =========================== */
*, *::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;
  height: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
button { cursor: pointer; font: inherit; color: inherit; background: none; border: none; }
textarea, input { font: inherit; color: inherit; }
a { color: inherit; }

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

/* ===========================
   APP SHELL
   =========================== */
#app {
  position: relative;
  min-height: 100dvh;
  min-height: 100vh;
  max-width: 480px;
  margin: 0 auto;
}

.screen {
  display: none;
  flex-direction: column;
  min-height: 100dvh;
  min-height: 100vh;
  position: absolute;
  top: 0; left: 0; right: 0;
  background: var(--color-bg);
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.screen.active {
  display: flex;
  opacity: 1;
  transform: translateX(0);
}

.screen.exiting {
  opacity: 0;
  transform: translateX(-24px);
  pointer-events: none;
}

/* ===========================
   SCREEN HEADER
   =========================== */
.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 10;
  gap: var(--space-3);
}

.screen-title {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
}

.btn-back, .btn-rules-mini {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
}

.btn-back:hover, .btn-rules-mini:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}

/* ===========================
   PROGRESS BAR
   =========================== */
.progress-bar-wrap {
  flex: 1;
  height: 4px;
  background: var(--color-divider);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-hover));
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===========================
   SCREEN BODY
   =========================== */
.screen-body {
  flex: 1;
  padding: var(--space-6) var(--space-5) var(--space-10);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ===========================
   WELCOME SCREEN
   =========================== */
.screen#screen-welcome {
  justify-content: center;
  align-items: center;
  background: var(--color-dark-surface);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

[data-theme='dark'] .screen#screen-welcome {
  color: var(--color-text);
}

.welcome-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(201, 146, 42, 0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 30% 70%, rgba(201, 146, 42, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.welcome-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-8) var(--space-6);
  text-align: center;
}

.firefly-icon {
  animation: float 4s ease-in-out infinite;
  filter: drop-shadow(0 0 16px rgba(201,146,42,0.7)) drop-shadow(0 0 32px rgba(201,146,42,0.35));
}

.firefly-img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(201,146,42,0.9)) drop-shadow(0 0 20px rgba(201,146,42,0.5));
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.welcome-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: #f0e6cc;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.welcome-subtitle {
  font-size: var(--text-sm);
  color: rgba(240, 230, 204, 0.6);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.5;
}

.welcome-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
  max-width: 280px;
  margin-top: var(--space-3);
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 12px var(--color-primary-glow);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 20px var(--color-primary-glow);
}

/* Primary на тёмном фоне (welcome screen) */
.screen#screen-welcome .btn-primary {
  background: var(--color-dark-accent);
  color: #13120e;
  box-shadow: 0 2px 20px rgba(201, 146, 42, 0.35);
}
.screen#screen-welcome .btn-primary:hover {
  background: #e0a830;
  box-shadow: 0 4px 28px rgba(201, 146, 42, 0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
  border-color: var(--color-text-faint);
}

.screen#screen-welcome .btn-ghost {
  color: rgba(240, 230, 204, 0.65);
  border-color: rgba(240, 230, 204, 0.25);
}
.screen#screen-welcome .btn-ghost:hover {
  background: rgba(240, 230, 204, 0.1);
  color: rgba(240, 230, 204, 0.9);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-next {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
  margin-top: auto;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===========================
   RULES SCREEN
   =========================== */
.rules-body {
  gap: var(--space-6);
}

.rules-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.rules-section h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}

.rules-section p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 100%;
}

.deck-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.deck-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.deck-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===========================
   DECK SCREEN
   =========================== */
.deck-body {
  gap: var(--space-4);
}

.step-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.deck-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.deck-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.deck-tap-hint {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.03em;
  opacity: 0.85;
  transition: opacity 0.3s ease;
}

.deck-tap-hint.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ===========================
   CARD
   =========================== */
.card-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.card {
  width: 100%;
  max-width: 280px;
  cursor: pointer;
  perspective: 1000px;
  -webkit-perspective: 1000px;
}

.card-inner {
  position: relative;
  width: 100%;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Задаём высоту через padding-bottom (соотношение 7:9) */
.card-inner::before {
  content: '';
  display: block;
  padding-bottom: 128.57%; /* 9/7 * 100 */
}

.card-inner.flipped {
  transform: rotateY(180deg);
}

.card-back, .card-front {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.card-back {
  background: var(--color-dark-surface);
  padding: 0;
}

.card-back-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
  display: block;
}

.card-tap-hint-overlay {
  display: none;
}

.card-front {
  background: var(--color-surface-2);
  transform: rotateY(180deg);
  border: 1px solid var(--color-border);
}

.card-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
  line-height: 1.45;
  letter-spacing: -0.005em;
}

/* ===========================
   ANSWER INPUT
   =========================== */
.answer-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.answer-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.answer-input {
  width: 100%;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.6;
  resize: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.answer-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.answer-input::placeholder {
  color: var(--color-text-faint);
}

/* ===========================
   SCALE
   =========================== */
.scale-area {
  background: var(--color-primary-light);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.scale-question {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.35;
}

.scale-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.scale-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.scale-label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.scale-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-divider);
  outline: none;
  cursor: pointer;
}

.scale-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px var(--color-primary-glow);
  transition: transform var(--transition);
}

.scale-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.scale-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px var(--color-primary-glow);
}

.scale-value-display {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
}

/* ===========================
   GIFTS SCREEN
   =========================== */
.gifts-hint {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.gifts-hint p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.gifts-questions {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.gifts-questions li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: var(--space-4);
  position: relative;
  line-height: 1.55;
}

.gifts-questions li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* ===========================
   SUMMARY SCREEN
   =========================== */
.summary-title {
  margin-bottom: var(--space-2);
}

.summary-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.summary-item-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.summary-item-text {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.6;
}

.summary-item-scale {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary-light);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  margin-bottom: var(--space-1);
}

.summary-item-scale-num {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1;
}

.summary-item-scale-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ===========================
   MICROSTEP
   =========================== */
.microstep-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}

.microstep-question {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}

.hint-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
}

.hint-card-text {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.65;
  font-style: italic;
}

/* ===========================
   FINAL SCREEN
   =========================== */
.final-body {
  justify-content: flex-start;
  align-items: stretch;
  gap: var(--space-6);
  padding-top: var(--space-10);
}

.final-icon {
  color: var(--color-primary);
  align-self: center;
}

.final-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
  line-height: 1.2;
}

.final-microstep-wrap {
  background: var(--color-primary-light);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.final-microstep-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.final-microstep-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}

.final-reminder {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4) var(--space-5);
}

.final-reminder p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.final-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.final-cta {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.final-cta p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.final-cta-price {
  font-weight: 700;
  color: var(--color-text) !important;
}

.final-cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: 100%;
}

.final-cta-buttons .btn {
  width: 100%;
  justify-content: center;
}