/* ============================================
   CHEF MARSEL — Dark Editorial Design System
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400;1,500;1,600&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500&display=swap');

/* --- Tokens --- */
:root {
  --color-bg-primary: #0A0A0A;
  --color-bg-secondary: #111111;
  --color-bg-card: #161616;
  --color-bg-card-hover: #1C1C1C;
  --color-text-primary: #F5F0EB;
  --color-text-secondary: #A8A29E;
  --color-text-muted: #6B6B6B;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-accent: #D4C5B2;
  --color-accent-dim: rgba(212, 197, 178, 0.12);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;

  --text-xs: 0.694rem;
  --text-sm: 0.833rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.618rem;
  --text-2xl: 2.618rem;
  --text-3xl: 4.236rem;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --radius-md: 12px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 2px rgba(0,0,0,0.2), 0 4px 16px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 4px 8px rgba(0,0,0,0.3), 0 12px 32px rgba(0,0,0,0.4);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 800ms;
}

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

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-weight: 300;
  overflow-x: hidden;
  min-height: 100dvh;
}

/* --- Utility --- */
.label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }

.cta-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: opacity var(--duration-fast) var(--ease-out);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.cta-link:hover { opacity: 0.7; }

/* --- Screen System --- */
.screen {
  display: none;
  min-height: 100dvh;
  position: relative;
}

.screen.active {
  display: block;
  animation: screenIn var(--duration-slow) var(--ease-out) both;
}

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

.screen__inner {
  max-width: 560px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-3xl);
  position: relative;
  z-index: 1;
}

/* --- Atmospheric Gradient --- */
.atmospheric-gradient {
  position: fixed;
  top: -40%;
  left: -20%;
  width: 140%;
  height: 80%;
  background: radial-gradient(
    ellipse 60% 50% at 50% 20%,
    rgba(212, 197, 178, 0.04) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* ============================================
   SCREEN 1: MENU SELECTION
   ============================================ */

.hero-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  padding-top: var(--space-xl);
}

.hero-header__label {
  margin-bottom: var(--space-sm);
}

.hero-header__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.hero-header__title em {
  font-style: italic;
  font-weight: 400;
}

.hero-header__subtitle {
  font-size: var(--text-sm);
  max-width: 280px;
  margin: 0 auto;
  line-height: 1.5;
}

/* --- Menu Cards --- */
.menu-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  list-style: none;
}

.menu-card {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-lg) var(--space-md);
  cursor: pointer;
  transition:
    background var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
  font-family: inherit;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.menu-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,197,178,0.15), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.menu-card:hover,
.menu-card:focus-visible {
  background: var(--color-bg-card-hover);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.menu-card:hover::before { opacity: 1; }

.menu-card:active {
  transform: translateY(0);
  transition-duration: 80ms;
}

.menu-card__number {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text-muted);
}

.menu-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
}

.menu-card__title em {
  font-style: italic;
}

.menu-card__desc {
  font-size: var(--text-sm);
  line-height: 1.45;
  margin-bottom: var(--space-sm);
}

.menu-card__cta {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  text-decoration: none;
}

/* ============================================
   SCREEN 2: WEIGHT INPUT
   ============================================ */

.back-link {
  display: inline-block;
  margin-bottom: var(--space-2xl);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.input-header {
  margin-bottom: var(--space-2xl);
}

.input-header__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: var(--space-xs);
  margin-bottom: var(--space-md);
}

.input-header__note {
  font-size: var(--text-sm);
  line-height: 1.55;
}

.input-header__note strong {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* --- Weight Input --- */
.weight-input-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.weight-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.weight-input {
  width: 100%;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-text-primary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  padding-right: 5rem;
  outline: none;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  -moz-appearance: textfield;
}

.weight-input::-webkit-outer-spin-button,
.weight-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.weight-input::placeholder {
  color: var(--color-text-muted);
}

.weight-input:focus {
  border-color: rgba(212, 197, 178, 0.3);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.weight-input__unit {
  position: absolute;
  right: var(--space-lg);
  color: var(--color-text-muted);
  pointer-events: none;
}

.calc-btn {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background: var(--color-text-primary);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-lg);
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  text-align: center;
}

.calc-btn:hover { opacity: 0.88; }
.calc-btn:active { transform: scale(0.98); }

/* ============================================
   SCREEN 3: RECIPE RESULT
   ============================================ */

.result-header {
  margin-bottom: var(--space-2xl);
}

.result-header__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.result-header__ratio {
  color: var(--color-accent);
  font-size: var(--text-sm);
}

/* --- Result Sections --- */
.result-section {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.result-section:last-of-type {
  border-bottom: none;
}

.result-section__heading {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  font-style: italic;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.result-section__note {
  font-size: var(--text-sm);
  margin-top: calc(-1 * var(--space-xs));
  margin-bottom: var(--space-md);
}

/* --- Ingredient List --- */
.ingredient-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.ingredient-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-base);
  gap: var(--space-sm);
}

.ingredient-list li:last-child {
  border-bottom: none;
}

.ingredient-list .ing-name {
  flex: 1;
  color: var(--color-text-primary);
  font-weight: 400;
}

.ingredient-list .ing-amount {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-accent);
  white-space: nowrap;
  text-align: right;
}

.ingredient-list .ing-note {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 300;
  margin-top: 2px;
}

/* --- Sauce Table --- */
.sauce-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 calc(-1 * var(--space-md));
  padding: 0 var(--space-md);
}

.sauce-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  min-width: 340px;
}

.sauce-table thead th {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--color-text-muted);
  text-align: left;
  padding: var(--space-xs) var(--space-sm) var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.sauce-table tbody td {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.sauce-table tbody tr:last-child td {
  border-bottom: none;
}

.sauce-table .sauce-name {
  color: var(--color-text-primary);
  font-weight: 400;
}

.sauce-table .sauce-amount {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-base);
  color: var(--color-accent);
  white-space: nowrap;
}

.sauce-table .sauce-tool {
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  line-height: 1.4;
}

/* --- Steps --- */
.steps-list {
  list-style: none;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.steps-list li {
  counter-increment: step;
  display: flex;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.steps-list li::before {
  content: counter(step);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-top: -1px;
}

/* --- Tool Guide --- */
.result-section--tools {
  border-bottom: none;
  padding-bottom: 0;
}

.tool-guide {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.tool-guide .label {
  display: inline-block;
  min-width: 72px;
  margin-right: var(--space-sm);
  color: var(--color-accent);
}

/* --- Restart --- */
.restart-link {
  display: inline-block;
  margin-top: var(--space-lg);
  color: var(--color-text-secondary);
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* ============================================
   RESPONSIVE — Desktop Enhancement
   ============================================ */

@media (min-width: 640px) {
  html { font-size: 18px; }

  .screen__inner {
    max-width: 620px;
    padding: var(--space-3xl) var(--space-lg);
  }

  .hero-header {
    padding-top: var(--space-3xl);
    margin-bottom: var(--space-3xl);
  }

  .hero-header__title {
    font-size: calc(var(--text-3xl) * 1.25);
  }

  .menu-grid {
    gap: var(--space-lg);
  }

  .menu-card {
    padding: var(--space-xl) var(--space-xl) var(--space-lg);
  }

  .menu-card__title {
    font-size: var(--text-2xl);
  }
}

@media (min-width: 1024px) {
  .screen__inner {
    max-width: 720px;
  }

  .menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .menu-card__title {
    font-size: var(--text-xl);
  }

  .menu-card__desc {
    font-size: var(--text-xs);
  }
}