/* Swiss Grid & Brutalist Elegance - Bookshelf Styling Website */

:root {
  /* Color Palette - The Curated Spine */
  --color-ink-black: #1A1A1A;
  --color-aged-vellum: #E8E2D6;
  --color-library-blue: #5D6D7E;
  --color-cognac-leather: #7B3F00;
  --color-gold-leaf: #F1C40F;
  --color-white: #FFFFFF;
  --color-off-white: #F5F5F5;
  
  /* Typography */
  --font-serif: 'Fraunces', serif;
  --font-mono: 'IBM Plex Mono', monospace;
  --font-sans: 'Inter', sans-serif;
  
  /* Spacing System */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Grid & Layout */
  --grid-columns: 12;
  --container-max-width: 1400px;
  --container-padding: var(--space-lg);
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(26, 26, 26, 0.1);
  --shadow-md: 0 4px 12px rgba(26, 26, 26, 0.15);
  --shadow-lg: 0 8px 24px rgba(26, 26, 26, 0.2);
  
  /* Z-index Layers */
  --z-header: 100;
  --z-burger: 101;
  --z-overlay: 200;
  --z-modal: 300;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink-black);
  background-color: var(--color-aged-vellum);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-ink-black);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  max-width: 65ch;
}

a {
  color: var(--color-library-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-cognac-leather);
}

/* Container & Grid System */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  justify-items: center;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  justify-items: center;
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  justify-items: center;
}

/* Header */
.site-header {
  background-color: var(--color-white);
  border-bottom: 2px solid var(--color-ink-black);
  padding: var(--space-md) var(--container-padding);
  position: relative;
  z-index: var(--z-header);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
  color: var(--color-ink-black);
}

.nav-menu {
  display: flex;
  gap: 15px;
  list-style: none;
  align-items: center;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-black);
  padding: var(--space-sm) var(--space-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-aged-vellum);
  color: var(--color-cognac-leather);
}

/* Burger Menu - Always in Header */
.burger-button {
  display: flex;
  background: none;
  border: 2px solid var(--color-ink-black);
  cursor: pointer;
  padding: var(--space-sm);
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-fast);
  position: relative;
  z-index: var(--z-burger);
  margin-left: var(--space-md);
}

.burger-button:hover {
  background-color: var(--color-aged-vellum);
}

.burger-line {
  width: 24px;
  height: 2px;
  background-color: var(--color-ink-black);
  transition: all var(--transition-fast);
}

.burger-button.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.burger-button.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-button.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

@media (min-width: 1024px) {
  .burger-button {
    display: none;
  }
}

@media (max-width: 1023px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background-color: var(--color-white);
    border-left: 2px solid var(--color-ink-black);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-2xl) var(--space-lg);
    gap: var(--space-md);
    transition: right var(--transition-base);
    z-index: var(--z-overlay);
    box-shadow: var(--shadow-lg);
    margin: 0;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-aged-vellum);
  }
}

/* Full-Width Banner */
.full-banner {
  width: 100vw;
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.35;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(26, 26, 26, 0.5) 0%, rgba(232, 226, 214, 0.85) 100%);
  z-index: 2;
}

.banner-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-2xl);
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.banner-title {
  color: var(--color-white);
  text-shadow: 2px 2px 8px rgba(26, 26, 26, 0.5);
  margin-bottom: var(--space-lg);
}

.banner-text {
  color: var(--color-white);
  font-size: clamp(1rem, 2vw, 1.25rem);
  text-shadow: 1px 1px 4px rgba(26, 26, 26, 0.5);
  max-width: none;
}

/* Sections */
.section {
  padding: var(--space-3xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background-color: var(--color-gold-leaf);
  margin: var(--space-md) auto 0;
}

.section-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.section-content > * {
  text-align: left;
}

.section-content > .text-center {
  text-align: center;
}

/* Cards */
.card {
  background-color: var(--color-white);
  border: 2px solid var(--color-ink-black);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-aged-vellum);
}

.section-image {
  width: 100%;
  max-width: 600px;
  height: auto;
  object-fit: cover;
  margin: 0 auto var(--space-lg);
  border: 2px solid var(--color-ink-black);
  display: block;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.card-text {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-library-blue);
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 2px solid var(--color-ink-black);
  background-color: var(--color-white);
  color: var(--color-ink-black);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  margin-top: 10px;
}

.btn:hover {
  background-color: var(--color-ink-black);
  color: var(--color-white);
}

.btn-primary {
  background-color: var(--color-ink-black);
  color: var(--color-white);
}
.footer-info{display: flex; justify-content: center;}
.footer-content p{color: white}
.btn-primary:hover {
  background-color: var(--color-cognac-leather);
  border-color: var(--color-cognac-leather);
  color: black;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
  color: var(--color-ink-black);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-ink-black);
  background-color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-library-blue);
  box-shadow: 0 0 0 3px rgba(93, 109, 126, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.checkbox-input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  line-height: 1.5;
}

/* Footer */
.site-footer {
  background-color: var(--color-ink-black);
  color: var(--color-aged-vellum);
  padding: var(--space-2xl) var(--container-padding);
  margin-top: var(--space-3xl);
}

.footer-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-section-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

.footer-menu {
  list-style: none;
}

.footer-link {
  color: var(--color-aged-vellum);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  padding: var(--space-xs) 0;
  display: block;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-gold-leaf);
}

.footer-info {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-library-blue);
  margin-top: var(--space-lg);
}

/* Spine Simulator */
.spine-simulator {
  background-color: var(--color-white);
  border: 3px solid var(--color-ink-black);
  padding: var(--space-2xl);
  margin: var(--space-2xl) 0;
}

.simulator-shelf {
  width: 100%;
  height: 200px;
  background-color: var(--color-aged-vellum);
  border: 2px solid var(--color-ink-black);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  gap: var(--space-sm);
  overflow-x: auto;
}

.book-item {
  min-width: 40px;
  height: 120px;
  background-color: var(--color-library-blue);
  border: 1px solid var(--color-ink-black);
  cursor: move;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.book-item:hover {
  transform: scale(1.1);
  z-index: 10;
}

.simulator-controls {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

/* Google Maps */
.map-container {
  width: 100%;
  height: 400px;
  border: 2px solid var(--color-ink-black);
  margin: var(--space-lg) 0;
}

.map-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

/* Scroll Animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Privacy Policy Popup */
.privacy-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 26, 26, 0.8);
  z-index: var(--z-modal);
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.privacy-overlay.active {
  display: flex;
}

.privacy-popup {
  background-color: var(--color-white);
  border: 3px solid var(--color-ink-black);
  padding: var(--space-2xl);
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.popup-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: 2px solid var(--color-ink-black);
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.popup-close:hover {
  background-color: var(--color-ink-black);
  color: var(--color-white);
}

/* 404 Page */
.error-page {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--container-padding);
}

.error-code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-library-blue);
  margin-bottom: var(--space-md);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-md);
    --space-3xl: var(--space-2xl);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .full-banner {
    min-height: 50vh;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: var(--space-sm);
  }
  
  .banner-content {
    padding: var(--space-lg);
  }
  
  .card {
    padding: var(--space-md);
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .burger-button {
    display: none;
  }
  
  body {
    background-color: white;
  }
}