/* CSS Design System - Mikoto's Bartender Portfolio */

:root {
  --color-bg: #FFFFFF;
  --color-text-main: #0A0A0A;
  --color-text-muted: #707070;
  --color-accent: #FFE600; /* Vibrant high-fashion yellow */
  --color-accent-light: #FFFDD0; /* Very soft cream yellow */
  --color-border: #111111; /* Strong editorial black borders */
  --color-border-light: #E5E5E5;
  
  --font-serif: 'Cormorant Garamond', serif;
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'Space Mono', monospace;

  --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Base Reset & Document Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Paper Grain Texture (Subtle Noise) */
.bg-noise {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  content: "";
  opacity: 0.025;
  z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--color-text-main);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}

/* Typography Utility Classes */
h1, h2, h3 {
  font-weight: 400;
}

/* Header & Navigation */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2.5rem 3rem;
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  z-index: 100;
  border-bottom: 1px solid var(--color-border-light);
}

.brand #brand-logo {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--color-text-main);
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-block;
}

.brand #brand-logo:hover {
  transform: scale(1.05);
  color: var(--color-accent);
  text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
}

.language-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-weight: 500;
  transition: var(--transition-fast);
  position: relative;
}

.lang-btn:hover {
  color: var(--color-text-main);
}

.lang-btn.active {
  color: var(--color-text-main);
  background-color: var(--color-accent);
  font-weight: bold;
}

.separator {
  color: var(--color-border-light);
  user-select: none;
}

/* Main Container Layout */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem 8rem 2rem;
}

/* Hero Section */
#hero-section {
  margin-bottom: 6rem;
  text-align: left;
}

#hero-title {
  font-family: var(--font-serif);
  font-size: 7.5rem;
  line-height: 0.85;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
  animation: sweepIn 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

#hero-subtitle {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: 0.95rem;
  letter-spacing: -0.5px;
  max-width: 500px;
}

/* Cocktails List */
#cocktails-list {
  border-bottom: 1px solid var(--color-border);
}

.cocktail-item {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  cursor: pointer;
  transition: var(--transition-smooth);
}

/* Hover effects when list has an active/hovered element */
#cocktails-list:hover .cocktail-item:not(:hover) {
  opacity: 0.25;
}

.cocktail-summary {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  transition: var(--transition-smooth);
}

.cocktail-number {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-text-muted);
}

.cocktail-name {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  line-height: 1.1;
  transition: var(--transition-smooth);
  position: relative;
  display: inline-block;
  justify-self: start;
}

/* Yellow Highlighter Sweep on Hover */
.cocktail-name::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 8%;
  width: 100%;
  height: 38%;
  background-color: var(--color-accent);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.cocktail-item:hover .cocktail-name::after {
  transform: scaleX(1);
}

.cocktail-base {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-light);
  padding: 0.3rem 0.8rem;
  transition: var(--transition-fast);
}

.cocktail-item:hover .cocktail-base {
  color: var(--color-text-main);
  border-color: var(--color-text-main);
  background-color: var(--color-bg);
}

/* Expanded Cocktail Details */
.cocktail-details {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
}

.cocktail-item.active {
  background-color: var(--color-accent-light);
  padding-left: 2rem;
  padding-right: 2rem;
  border-left: 6px solid var(--color-border);
}

.cocktail-item.active .cocktail-name::after {
  transform: scaleX(1);
}

.cocktail-item.active .cocktail-details {
  max-height: 1000px;
  opacity: 1;
  margin-top: 3rem;
  padding-bottom: 2rem;
}

/* Inner Details Grid */
.details-grid {
  display: grid;
  grid-template-columns: 4.5fr 5.5fr;
  gap: 4rem;
  align-items: start;
}

.details-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: #FFFFFF;
}

.cocktail-img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(20%);
  transition: var(--transition-smooth);
}

.cocktail-item.active .cocktail-img {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.details-text {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.cocktail-story {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  line-height: 1.4;
  color: var(--color-text-main);
  font-style: italic;
}

/* Recipe Structure */
.recipe-box {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.recipe-heading {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-text-muted);
}

.ingredients-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.ingredients-list li {
  display: flex;
  font-family: var(--font-mono);
  font-size: 1rem;
}

.ing-amount {
  width: 90px;
  font-weight: 600;
}

.ing-name {
  color: var(--color-text-main);
}

.recipe-method {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-text-main);
}

/* Animations */
@keyframes sweepIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  animation: sweepIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.fade-in-delayed {
  opacity: 0;
  animation: sweepIn 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
}

/* Responsive adjustments */
@media (max-width: 900px) {
  #hero-title {
    font-size: 5rem;
  }
  
  .cocktail-name {
    font-size: 2.5rem;
  }
  
  .details-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  header {
    padding: 1.5rem 2rem;
  }
  
  main {
    padding: 2rem 1.5rem 4rem 1.5rem;
  }
}

@media (max-width: 600px) {
  #hero-title {
    font-size: 3.8rem;
  }
  
  .cocktail-summary {
    grid-template-columns: 40px 1fr;
    gap: 0.5rem;
  }
  
  .cocktail-base {
    grid-column: 2;
    justify-self: start;
    margin-top: 0.5rem;
  }
  
  .cocktail-name {
    font-size: 2rem;
  }
  
  .cocktail-item.active {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .cocktail-story {
    font-size: 1.4rem;
  }
}