/* ==========================================================================
   SEAPOET.ART - Main Stylesheet
   ========================================================================== */

/* CSS Variables for consistent theming
   ========================================================================== */
:root {
  /* Colors */
  --primary-bg: #0b1c2f;
  --primary-text: #848d96;
  --heading-text: #ddd;
  --accent-color: #47bec7;
  --accent-hover: #0056b3;
  --link-color: #848d96;
  --shadow-color: rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-main: Arial, sans-serif;
  --font-serif: Georgia, serif;
  
  /* Spacing */
  --spacing-xs: 10px;
  --spacing-sm: 20px;
  --spacing-md: 40px;
  --spacing-lg: 60px;
  --spacing-xl: 120px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Base Styles
   ========================================================================== */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: var(--primary-bg);
  color: var(--primary-text);
  line-height: 1.6;
  min-height: 100%;
}

/* Links */
a {
  color: var(--link-color);
  text-decoration: none;
  transition: color var(--transition-normal);
}

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

a:focus {
  outline: 3px solid var(--accent-color);
  outline-offset: 2px;
}

/* Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  color: var(--heading-text);
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(24px, 5vw, 36px);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

h2 {
  font-size: clamp(22px, 4vw, 28px);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

p {
  font-size: 18px;
  line-height: 1.6;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
}

/* Screen Reader Only Content */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Loading Overlay
   ========================================================================== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity var(--transition-slow);
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--accent-color);
  border-top: 4px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Layout Components
   ========================================================================== */
.full-container {
  display: flex;
  flex-direction: column;
  margin: 50px;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.container {
  display: flex;
  flex-direction: row;
  max-width: 1000px;
  margin: 0 auto var(--spacing-md) auto;
  border-radius: 10px;
  box-shadow: 0 0 10px var(--shadow-color);
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.02);
  transition: transform var(--transition-normal);
}

.container:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(71, 190, 199, 0.1);
}

.content {
  flex: 1;
  padding: 50px;
}

/* Image Containers
   ========================================================================== */
.book-cover,
.author-photo {
  flex: 1;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  min-height: 400px;
  position: relative;
}

.book-cover {
  background-image: url('/images/bookcover_with_award2.jpg');
}

.author-photo {
  background-image: url('/images/louise.jpg');
}

/* For browsers that support WebP */
@supports (background-image: url('test.webp')) {
  .book-cover {
    background-image: url('/images/bookcover_with_award2.webp');
  }
  
  .author-photo {
    background-image: url('/images/louise.webp');
  }
}

/* Buttons
   ========================================================================== */
.button-container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--accent-color);
  color: white;
  text-decoration: none;
  border-radius: 5px;
  border: 2px solid var(--accent-color);
  transition: all var(--transition-normal);
  text-align: center;
  font-weight: 600;
  position: relative;
  overflow: hidden;
  min-width: 180px;
}

.button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.button:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(71, 190, 199, 0.4);
}

.button:hover::before {
  width: 300px;
  height: 300px;
}

.button:focus {
  outline: 3px solid white;
  outline-offset: 3px;
}

.button:active {
  transform: translateY(0);
}

/* Carousel / Slideshow
   ========================================================================== */
.carousel {
  position: relative;
  width: 100%;
  padding-top: 75%; /* 4:3 Aspect Ratio */
  filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.3));
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  overflow: hidden;
}

.carousel__viewport {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  overflow: hidden;
}

.carousel__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel__slide.active {
  opacity: 1;
  z-index: 2;
}

.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Carousel Navigation */
.carousel__prev,
.carousel__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background-color: rgba(71, 190, 199, 0.8);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  color: white;
  font-size: 24px;
  font-weight: bold;
}

.carousel__prev {
  left: 10px;
}

.carousel__next {
  right: 10px;
}

.carousel__prev:hover,
.carousel__next:hover {
  background-color: var(--accent-color);
  transform: translateY(-50%) scale(1.1);
}

.carousel__prev:focus,
.carousel__next:focus {
  outline: 3px solid white;
  outline-offset: 3px;
}

/* Carousel Indicators */
.carousel__indicators {
  position: absolute;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.carousel__indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel__indicator.active {
  background-color: var(--accent-color);
  border-color: white;
  transform: scale(1.2);
}

.carousel__indicator:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

/* Carousel Pause/Play Button */
.carousel__control {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  background-color: rgba(71, 190, 199, 0.8);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  color: white;
  font-size: 18px;
}

.carousel__control:hover {
  background-color: var(--accent-color);
  transform: scale(1.1);
}

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

/* Responsive Design
   ========================================================================== */

/* Tablet Landscape - Medium Screens */
@media (max-width: 991px) {
  .full-container {
    margin: 30px;
  }
  
  .container {
    flex-direction: column;
  }
  
  .content {
    padding: 40px;
  }
  
  .book-cover,
  .author-photo {
    min-height: 350px;
  }
}

/* Tablet Portrait - Small Screens */
@media (max-width: 767px) {
  .full-container {
    margin: 20px;
  }
  
  .content {
    padding: 30px;
  }
  
  h1 {
    font-size: 28px;
  }
  
  h2 {
    font-size: 22px;
  }
  
  p {
    font-size: 16px;
  }
  
  .book-cover,
  .author-photo {
    min-height: 300px;
  }
  
  .button-container {
    flex-direction: column;
  }
  
  .button {
    width: 100%;
  }
  
  .carousel__prev,
  .carousel__next {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
}

/* Mobile - Extra Small Screens */
@media (max-width: 600px) {
  .full-container {
    margin: 10px;
  }
  
  .content {
    padding: 20px 15px;
  }
  
  h1 {
    font-size: 24px;
  }
  
  h2 {
    font-size: 20px;
  }
  
  p {
    font-size: 16px;
  }
  
  .book-cover {
    background-image: url('/images/bookcover_with_award_square.jpeg');
    background-position: center top;
    min-height: 250px;
  }
  
  .author-photo {
    background-position: center top;
    min-height: 250px;
  }
  
  .button {
    padding: 10px 18px;
    font-size: 14px;
    min-width: auto;
  }
  
  .carousel__prev,
  .carousel__next {
    width: 35px;
    height: 35px;
    font-size: 18px;
  }
  
  .carousel__prev {
    left: 5px;
  }
  
  .carousel__next {
    right: 5px;
  }
  
  .carousel__indicators {
    bottom: 10px;
    gap: 8px;
  }
  
  .carousel__indicator {
    width: 10px;
    height: 10px;
  }
}

/* Mobile - Very Small Screens */
@media (max-width: 400px) {
  .full-container {
    margin: 5px;
  }
  
  .content {
    padding: 15px;
  }
  
  h1 {
    font-size: 22px;
  }
  
  h2 {
    font-size: 18px;
  }
  
  .book-cover,
  .author-photo {
    min-height: 200px;
  }
}

/* Print Styles
   ========================================================================== */
@media print {
  .button,
  .carousel__prev,
  .carousel__next,
  .carousel__indicators,
  .carousel__control,
  .loading-overlay {
    display: none !important;
  }
  
  .container {
    page-break-inside: avoid;
  }
  
  body {
    background-color: white;
    color: black;
  }
  
  h1, h2 {
    color: black;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
}

/* Accessibility - High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --primary-text: #ffffff;
    --heading-text: #ffffff;
    --accent-color: #00ffff;
  }
  
  .button {
    border-width: 3px;
  }
}

/* Accessibility - Reduced Motion */
@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;
  }
}

/* Dark Mode Support (if user prefers) */
@media (prefers-color-scheme: light) {
  /* Keep dark theme even in light mode preference */
  /* Site is designed for dark theme */
}