/* ===================================
   Quote Machine - Design System
   Professional, warm, trustworthy
   =================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Warm, sophisticated palette */
  --color-cream: #faf8f5;
  --color-cream-dark: #f0ebe3;
  --color-warm-white: #fffdf9;
  --color-text-primary: #2c3e50;
  --color-text-secondary: #5d6d7e;
  --color-text-muted: #8b9caa;
  --color-accent-navy: #1e3a5f;
  --color-accent-forest: #2d5a47;
  --color-accent-coral: #e07a5f;
  --color-accent-gold: #c9a959;
  --color-border: #e8e2d9;
  --color-shadow: rgba(44, 62, 80, 0.08);

  /* Typography */
  --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-cream);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-accent-navy);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-coral);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Header */
.header {
  background: var(--color-warm-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
}

.header__logo:hover {
  color: var(--color-accent-navy);
}

.header__logo-icon {
  font-size: 1.75rem;
}

.nav {
  display: flex;
  gap: var(--space-xl);
}

.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-sm) 0;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-coral);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-text-primary);
}

/* Search Bar */
.search-bar {
  position: relative;
  width: 280px;
}

.search-bar__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  padding-left: 2.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-cream);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.search-bar__input:focus {
  outline: none;
  border-color: var(--color-accent-navy);
  background: var(--color-warm-white);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.search-bar__icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-accent-navy) 0%, #2d4a6f 100%);
  color: white;
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.hero__title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: white;
}

.hero__subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  font-weight: 400;
  margin-bottom: var(--space-xl);
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-serif);
}

.hero__stat-label {
  font-size: 0.9rem;
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Quote Cards */
.quote-card {
  background: var(--color-warm-white);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  box-shadow: 0 2px 12px var(--color-shadow);
  transition: all var(--transition-base);
  border: 1px solid transparent;
  position: relative;
}

.quote-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--color-shadow);
  border-color: var(--color-border);
}

.quote-card__quote {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  position: relative;
}

.quote-card__quote::before {
  content: '"';
  font-size: 4rem;
  font-family: var(--font-serif);
  color: var(--color-accent-coral);
  opacity: 0.2;
  position: absolute;
  top: -1.5rem;
  left: -0.5rem;
  line-height: 1;
}

.quote-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.quote-card__attribution {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.quote-card__author {
  font-weight: 600;
  color: var(--color-text-primary);
  font-size: 1rem;
}

.quote-card__title {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.quote-card__ref {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-cream);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.quote-card__actions {
  display: flex;
  gap: var(--space-sm);
}

.quote-card__action {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-cream);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.quote-card__action:hover {
  background: var(--color-accent-navy);
  border-color: var(--color-accent-navy);
  color: white;
}

/* Quote Grid — stacked full-width rows */
.quote-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-2xl) 0;
}

/* Section Headers */
.section {
  padding: var(--space-2xl) 0;
}

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.section__title {
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.section__link {
  font-size: 0.95rem;
  color: var(--color-accent-coral);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.section__link:hover {
  color: var(--color-accent-navy);
}

/* Browse Cards (Authors/Titles) */
.browse-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.browse-card {
  background: var(--color-warm-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  text-decoration: none;
  display: block;
}

.browse-card:hover {
  border-color: var(--color-accent-navy);
  box-shadow: 0 4px 20px var(--color-shadow);
  transform: translateY(-2px);
}

.browse-card__name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.browse-card__subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.browse-card__count {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  background: var(--color-cream);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
}

/* Single Quote Page */
.quote-single {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.quote-single__quote {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  line-height: 1.9;
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.quote-single__quote::before,
.quote-single__quote::after {
  font-size: 6rem;
  color: var(--color-accent-coral);
  opacity: 0.15;
  position: absolute;
  line-height: 1;
}

.quote-single__quote::before {
  content: '"';
  top: -2rem;
  left: -1rem;
}

.quote-single__quote::after {
  content: '"';
  bottom: -3rem;
  right: -1rem;
}

.quote-single__meta {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.quote-single__author {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.quote-single__title {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Search Results */
.search-results {
  padding: var(--space-2xl) 0;
}

.search-results__header {
  margin-bottom: var(--space-xl);
}

.search-results__query {
  font-family: var(--font-serif);
  color: var(--color-accent-navy);
}

.search-results__count {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

mark {
  background: linear-gradient(120deg, rgba(224, 122, 95, 0.3) 0%, rgba(224, 122, 95, 0.3) 100%);
  padding: 0 2px;
  border-radius: 2px;
}

/* Footer */
.footer {
  background: var(--color-accent-navy);
  color: white;
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

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

.footer__brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  opacity: 0.9;
}

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

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer__link:hover {
  color: white;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent-coral);
  color: white;
}

.btn--primary:hover {
  background: #c96a51;
  color: white;
}

.btn--secondary {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn--secondary:hover {
  background: var(--color-cream);
  border-color: var(--color-accent-navy);
}

/* Loading State */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
}

.loading__spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent-navy);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

/* Collection Cards */
.collections-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.collection-card {
  background: var(--color-warm-white);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  text-decoration: none;
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.collection-card:hover {
  border-color: var(--color-accent-navy);
  box-shadow: 0 4px 20px var(--color-shadow);
  transform: translateY(-2px);
}

.collection-card__icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.collection-card__content {
  flex: 1;
}

.collection-card__name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.collection-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.collection-card__count {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* Share Buttons */
.quote-card__share {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-cream);
  color: var(--color-text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-size: 0.85rem;
  text-decoration: none;
}

.quote-card__share:hover {
  background: var(--color-accent-navy);
  border-color: var(--color-accent-navy);
  color: white;
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.back-link:hover {
  color: var(--color-accent-navy);
}

/* Section Intro */
.section__intro {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-2xl: 2rem;
    --space-3xl: 2.5rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  .header__inner {
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
  }

  .header__logo {
    font-size: 1.25rem;
  }

  .header__logo-icon {
    font-size: 1.5rem;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .nav__link {
    font-size: 0.85rem;
    white-space: nowrap;
  }

  .search-bar {
    width: 100%;
    order: 2;
    margin-top: var(--space-xs);
  }

  .hero {
    padding: var(--space-2xl) var(--space-md);
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .hero__stat-value {
    font-size: 2rem;
  }

  .hero__stat-label {
    font-size: 0.75rem;
  }

  .quote-grid {
    gap: var(--space-md);
    padding: var(--space-lg) 0;
  }

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

  .quote-card__quote {
    font-size: 1rem;
    line-height: 1.7;
  }

  .quote-card__quote::before {
    font-size: 3rem;
    top: -1rem;
  }

  .quote-card__meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .browse-grid {
    grid-template-columns: 1fr;
  }

  .collections-grid {
    grid-template-columns: 1fr;
  }

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

  .collection-card__icon {
    font-size: 2rem;
  }

  .quote-single__quote {
    font-size: 1.35rem;
  }

  .section {
    padding: var(--space-lg) 0;
  }

  .section__header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .section__title {
    font-size: 1.35rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .footer {
    padding: var(--space-xl) var(--space-md);
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }
}

/* Small phones */
@media (max-width: 380px) {
  h1 {
    font-size: 1.5rem;
  }

  .nav {
    gap: var(--space-sm);
  }

  .nav__link {
    font-size: 0.8rem;
  }

  .hero__stats {
    gap: var(--space-md);
  }

  .hero__stat-value {
    font-size: 1.5rem;
  }
}

/* Print Styles */
@media print {

  .header,
  .footer,
  .quote-card__actions,
  .quote-card__share {
    display: none;
  }

  .quote-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* Search mode toggle */
.search-mode-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.search-mode-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  margin-top: -1rem;
}

/* Related quotes section */
.related-quotes {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.related-quotes__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-text-primary);
}