/* ========================================
   Mississippi News App - Styles
   Mobile-first, newsroom-grade design
   ======================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Neutral, professional palette */
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #555555;
  --color-text-muted: #777777;
  --color-border: #e5e5e5;
  --color-border-light: #f0f0f0;
  --color-accent: #1a1a1a;
  --color-accent-hover: #333333;
  --color-link: #1a1a1a;
  --color-link-hover: #555555;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-xs: 0.75rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-padding: 1.25rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-link-hover);
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

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

/* ========================================
   Header
   ======================================== */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-main {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.logo-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-normal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  background-color: var(--color-surface);
  padding: var(--spacing-3xl) 0 var(--spacing-4xl);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.03em;
}

.hero-subhead {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 500px;
  margin: 0 auto var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: 8px;
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  min-width: 200px;
}

.cta-button:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.cta-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.cta-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.cta-small {
  font-size: var(--font-size-xs);
  opacity: 0.9;
}

.cta-large {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

/* ========================================
   Latest Articles Carousel
   ======================================== */
.latest-articles {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-background);
}

.latest-articles h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  letter-spacing: -0.02em;
}

.carousel-wrapper {
  position: relative;
}

.carousel {
  display: flex;
  gap: var(--spacing-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: var(--spacing-sm) 0;
}

.carousel::-webkit-scrollbar {
  display: none;
}

.carousel-nav {
  display: none;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-fast), background-color var(--transition-fast);
  z-index: 10;
}

.carousel-nav:hover:not(:disabled) {
  background-color: var(--color-background);
}

.carousel-nav:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.carousel-nav svg {
  width: 20px;
  height: 20px;
}

.carousel-prev {
  left: -20px;
}

.carousel-next {
  right: -20px;
}

.article-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

.article-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.article-card a {
  display: block;
  color: inherit;
}

.article-image {
  aspect-ratio: 16 / 9;
  background-color: var(--color-border-light);
  overflow: hidden;
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.article-card:hover .article-image img {
  transform: scale(1.03);
}

.article-content {
  padding: var(--spacing-md);
}

.article-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.article-source {
  font-weight: var(--font-weight-medium);
}

/* Loading State */
.carousel-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  width: 100%;
  color: var(--color-text-muted);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-text);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

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

/* ========================================
   Network Section
   ======================================== */
.network {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.network h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  text-align: center;
  letter-spacing: -0.02em;
}

.section-intro {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
}

.network-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.network-grid a {
  display: block;
  padding: var(--spacing-md);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-weight: var(--font-weight-medium);
  text-align: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.network-grid a:hover {
  background-color: var(--color-surface);
  border-color: var(--color-text);
}

/* ========================================
   Newsletter Section
   ======================================== */
.newsletter {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-background);
}

.newsletter-content {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.newsletter h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.newsletter p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.newsletter-button {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: 6px;
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast);
}

.newsletter-button:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
}

/* ========================================
   About Section
   ======================================== */
.about {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.about h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.02em;
}

.about p {
  max-width: var(--container-narrow);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-background);
  border-top: 1px solid var(--color-border);
}

.contact h2 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.02em;
}

.contact-layout {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact-info p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.contact-email a {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-form {
  max-width: 500px;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background-color: var(--color-surface);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-text);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-fast);
}

.form-submit:hover {
  background-color: var(--color-accent-hover);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.form-status.success {
  color: #16a34a;
}

.form-status.error {
  color: #dc2626;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.site-footer p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ========================================
   Desktop Styles
   ======================================== */
@media (min-width: 768px) {
  :root {
    --container-padding: 2rem;
  }

  .logo-main {
    font-size: var(--font-size-xl);
  }

  .hero {
    padding: var(--spacing-4xl) 0;
  }

  .hero h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-subhead {
    font-size: var(--font-size-xl);
  }

  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }

  .carousel-nav {
    display: flex;
  }

  .carousel-prev {
    left: -50px;
  }

  .carousel-next {
    right: -50px;
  }

  .article-card {
    flex: 0 0 320px;
  }

  .network-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
  }

  .network-grid a {
    text-align: left;
  }

  .contact-layout {
    flex-direction: row;
    gap: var(--spacing-3xl);
  }

  .contact-info {
    flex: 1;
  }

  .contact-form {
    flex: 1;
    max-width: none;
  }
}

@media (min-width: 1024px) {
  .network-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .carousel-wrapper {
    padding: 0 var(--spacing-2xl);
  }

  .carousel-prev {
    left: 0;
  }

  .carousel-next {
    right: 0;
  }
}

/* ========================================
   Accessibility & Print
   ======================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

@media print {
  .site-header,
  .cta-buttons,
  .carousel-nav,
  .newsletter,
  .contact-form {
    display: none;
  }

  body {
    background: white;
    color: black;
  }
}