/**
 * Chapter Excerpts Styles
 * Water-themed styling for book excerpt components
 *
 * Enhanced for visual appeal and full light/dark mode support
 * Uses design tokens from style.css
 */

/* ====================
   CSS CUSTOM PROPERTIES
   ==================== */

:root {
    /* Light mode defaults - strong contrast & readability */
    --excerpt-bg: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    --excerpt-card-bg: #ffffff;
    --excerpt-text: #0f172a;
    --excerpt-text-muted: #334155;
    --excerpt-accent: #0077be;
    --excerpt-accent-light: #38bdf8;
    --excerpt-accent-dark: #005a8c;
    --excerpt-accent-glow: rgba(0, 119, 190, 0.12);
    --excerpt-border: rgba(0, 119, 190, 0.18);
    --excerpt-shadow: 0 4px 20px rgba(0, 60, 100, 0.1), 0 1px 3px rgba(0, 60, 100, 0.08);
    --excerpt-shadow-hover: 0 12px 36px rgba(0, 60, 100, 0.15), 0 4px 12px rgba(0, 60, 100, 0.1);
    --excerpt-quote-bg: rgba(224, 242, 254, 0.6);
    --excerpt-divider: rgba(0, 119, 190, 0.15);
}

/* Dark mode custom properties */
.dark-mode,
[data-theme="dark"] {
    --excerpt-bg: linear-gradient(135deg, #0c1929 0%, #0a1525 100%);
    --excerpt-card-bg: #0f2236;
    --excerpt-text: #e2f1fa;
    --excerpt-text-muted: #94b8d4;
    --excerpt-accent: #5cc8f5;
    --excerpt-accent-light: #8ad8f8;
    --excerpt-accent-dark: #3ab4e8;
    --excerpt-accent-glow: rgba(92, 200, 245, 0.15);
    --excerpt-border: rgba(92, 200, 245, 0.25);
    --excerpt-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 4px rgba(0, 0, 0, 0.3);
    --excerpt-shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 6px 16px rgba(0, 0, 0, 0.35);
    --excerpt-quote-bg: rgba(92, 200, 245, 0.08);
    --excerpt-divider: rgba(92, 200, 245, 0.18);
}

/* ====================
   SINGLE EXCERPT BLOCK
   ==================== */

.water-excerpt {
    position: relative;
    margin: 1.5rem 0;
    padding: 1.25rem 1.5rem 1.25rem 1.75rem;
    background: var(--excerpt-card-bg);
    border-left: 4px solid var(--excerpt-accent);
    border-radius: 0 8px 8px 0;
    box-shadow: var(--excerpt-shadow);
    overflow: hidden;
    transition:
        transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.3s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.3s ease;
}

/* Gradient overlay for depth */
.water-excerpt::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        var(--excerpt-quote-bg) 0%,
        transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.water-excerpt:hover {
    transform: translateY(-3px);
    box-shadow: var(--excerpt-shadow-hover);
    border-left-color: var(--excerpt-accent-light);
}

.water-excerpt__content {
    position: relative;
    z-index: 2;
}

.water-excerpt__text {
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--excerpt-text);
    font-style: italic;
    margin: 0 0 0.75rem;
    position: relative;
}

/* Decorative opening quote - positioned behind text */
.water-excerpt__text::before {
    content: "\201C";
    position: absolute;
    top: -0.6rem;
    left: -2rem;
    font-size: 4rem;
    font-family: Georgia, "Times New Roman", serif;
    color: var(--excerpt-accent);
    opacity: 0.1;
    line-height: 1;
    pointer-events: none;
    z-index: -1;
}

.water-excerpt__footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding-top: 0;
    border-top: 1px solid var(--excerpt-divider);
}

.water-excerpt__source {
    font-size: 0.95rem;
    color: var(--excerpt-accent);
    font-style: normal;
    font-weight: 500;
}

.water-excerpt__chapter {
    font-weight: 600;
}

.water-excerpt__title {
    color: var(--excerpt-text-muted);
}

.water-excerpt__title::before {
    content: " — ";
    opacity: 0.6;
}

/* Ripple Effect */
.water-excerpt__ripple {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--excerpt-accent-light) 20%,
        var(--excerpt-accent) 50%,
        var(--excerpt-accent-light) 80%,
        transparent 100%);
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left;
    transition:
        opacity 0.3s ease,
        transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.water-excerpt:hover .water-excerpt__ripple {
    opacity: 1;
    transform: scaleX(1);
}

/* Style Variants */
.water-excerpt--card {
    border-left: none;
    border-radius: 10px;
    padding: 1.5rem;
    background: var(--excerpt-card-bg);
    border: 1px solid var(--excerpt-border);
    text-align: center;
}

.water-excerpt--card .water-excerpt__footer {
    justify-content: center;
    border-top: none;
    padding-top: 0.5rem;
}

.water-excerpt--card:hover {
    border-color: var(--excerpt-accent-light);
}

.water-excerpt--featured {
    border-left-width: 5px;
    padding: 1.5rem 1.75rem 1.5rem 2rem;
    border-radius: 0 10px 10px 0;
}

.water-excerpt--featured .water-excerpt__text {
    font-size: 1.25rem;
    line-height: 1.85;
}

.water-excerpt--minimal {
    background: transparent;
    box-shadow: none;
    border-left: 3px solid var(--excerpt-accent-light);
    padding: 1.25rem 1.75rem;
    border-radius: 0;
}

.water-excerpt--minimal::before,
.water-excerpt--minimal::after {
    display: none;
}

.water-excerpt--minimal:hover {
    transform: none;
    box-shadow: none;
    background: var(--excerpt-quote-bg);
}

.water-excerpt--minimal .water-excerpt__text {
    font-size: 1.1rem;
}

/* Type Variants */
.water-excerpt--type-warning {
    border-left-color: #f87171;
}

.water-excerpt--type-warning::before {
    background: linear-gradient(180deg, #fca5a5 0%, #f87171 50%, #ef4444 100%);
}

/* ====================
   CHAPTER EPIGRAPH
   ==================== */

.chapter-epigraph {
    position: relative;
    max-width: 640px;
    margin: 1.5rem auto;
    padding: 1.25rem 1.5rem;
    text-align: center;
    background: var(--excerpt-quote-bg);
    border-radius: 8px;
    border: none;
}

/* Decorative line */
.chapter-epigraph::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--excerpt-accent) 50%,
        transparent 100%);
    border-radius: 1px;
}

.chapter-epigraph__quote {
    font-size: 1.35rem;
    font-style: italic;
    line-height: 1.7;
    color: var(--excerpt-text);
    margin: 0 0 0.75rem;
}

.chapter-epigraph__attribution {
    margin-top: 0.5rem;
}

.chapter-epigraph__attribution cite {
    font-size: 1rem;
    color: var(--excerpt-accent);
    font-style: normal;
    font-weight: 600;
}

/* ====================
   FEATURED EXCERPTS GRID
   ==================== */

.featured-excerpts {
    display: grid;
    gap: 1.25rem;
    padding: 1rem 0;
}

.featured-excerpts--cols-1 {
    grid-template-columns: 1fr;
    max-width: 700px;
    margin: 0 auto;
}

.featured-excerpts--cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.featured-excerpts--cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .featured-excerpts--cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 680px) {
    .featured-excerpts--cols-2,
    .featured-excerpts--cols-3 {
        grid-template-columns: 1fr;
    }
}

/* Featured Excerpt Card */
.featured-excerpt {
    position: relative;
    background: var(--excerpt-card-bg);
    border-radius: 16px;
    padding: 0;
    overflow: hidden;
    box-shadow: var(--excerpt-shadow);
    border: 1px solid var(--excerpt-border);
    transition:
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.35s ease;
}

.featured-excerpt:hover {
    transform: translateY(-5px);
    box-shadow: var(--excerpt-shadow-hover);
    border-color: var(--excerpt-accent-light);
}

/* Wave Background Effect - Top gradient bar */
.featured-excerpt__wave-bg {
    position: relative;
    height: 4px;
    background: linear-gradient(90deg,
        var(--excerpt-accent-light) 0%,
        var(--excerpt-accent) 50%,
        var(--excerpt-accent-light) 100%);
    background-size: 200% 100%;
    animation: wave-shimmer 3s ease-in-out infinite;
}

@keyframes wave-shimmer {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.featured-excerpt__content {
    position: relative;
    z-index: 2;
    padding: 1.25rem 1.25rem 1rem;
}

.featured-excerpt__title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--excerpt-accent);
    margin: 0 0 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.featured-excerpt__quote {
    border: none;
    padding: 0;
    margin: 0 0 0.75rem;
}

.featured-excerpt__quote p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--excerpt-text);
    font-style: italic;
    margin: 0;
}

.featured-excerpt__meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--excerpt-text-muted);
    padding-top: 0.75rem;
    border-top: 1px solid var(--excerpt-divider);
}

.featured-excerpt__chapter {
    font-weight: 600;
    color: var(--excerpt-accent);
}

.featured-excerpt__divider {
    opacity: 0.4;
}

.featured-excerpt__chapter-title {
    opacity: 0.85;
}

/* Ripple Container */
.featured-excerpt__ripple-container {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.featured-excerpt:hover .featured-excerpt__ripple-container {
    opacity: 1;
}

.featured-excerpt__ripple {
    position: absolute;
    bottom: -25px;
    left: 50%;
    width: 200%;
    height: 50px;
    transform: translateX(-50%);
    background: radial-gradient(ellipse at center,
        var(--excerpt-accent-glow) 0%,
        transparent 70%);
    animation: ripple-expand 1.5s ease-out infinite;
}

@keyframes ripple-expand {
    0% {
        transform: translateX(-50%) scale(0.7);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) scale(1.3);
        opacity: 0;
    }
}

/* ====================
   CHAPTER SUMMARY
   ==================== */

.chapter-summary {
    max-width: 850px;
    margin: 3.5rem auto;
    padding: 3rem 3.5rem;
    background: var(--excerpt-card-bg);
    border-radius: 24px;
    box-shadow: var(--excerpt-shadow);
    border: 1px solid var(--excerpt-border);
}

.chapter-summary__header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--excerpt-divider);
}

.chapter-summary__number {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--excerpt-accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    padding: 0.35rem 1rem;
    background: var(--excerpt-quote-bg);
    border-radius: 20px;
}

.chapter-summary__title {
    font-size: 2.25rem;
    color: var(--excerpt-text);
    margin: 0 0 0.5rem;
    font-weight: 700;
}

.chapter-summary__subtitle {
    font-size: 1.15rem;
    color: var(--excerpt-text-muted);
    font-style: italic;
    margin: 0;
}

.chapter-summary__epigraph {
    max-width: 550px;
    margin: 0 auto 2.5rem;
    padding: 1.75rem 2rem;
    text-align: center;
    background: var(--excerpt-quote-bg);
    border-radius: 16px;
    border: none;
}

.chapter-summary__epigraph p {
    font-style: italic;
    color: var(--excerpt-text);
    margin: 0 0 0.75rem;
    font-size: 1.1rem;
    line-height: 1.7;
}

.chapter-summary__epigraph cite {
    font-size: 0.95rem;
    color: var(--excerpt-accent);
    font-style: normal;
    font-weight: 600;
}

.chapter-summary__excerpts {
    margin-top: 2.5rem;
}

.chapter-summary__excerpts-title {
    font-size: 1.3rem;
    color: var(--excerpt-text);
    margin-bottom: 1.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
}

.chapter-summary__excerpts-title::before {
    content: "";
    display: block;
    width: 40px;
    height: 4px;
    background: linear-gradient(90deg, var(--excerpt-accent-light), var(--excerpt-accent));
    border-radius: 2px;
}

.chapter-summary__excerpt {
    margin: 1.75rem 0;
    padding: 1.5rem 1.75rem;
    background: var(--excerpt-quote-bg);
    border-radius: 12px;
    border-left: 4px solid var(--excerpt-accent);
}

.chapter-summary__excerpt-title {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--excerpt-accent);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chapter-summary__excerpt p {
    font-style: italic;
    line-height: 1.75;
    color: var(--excerpt-text);
    margin: 0;
}

/* Excerpt Type Colors */
.chapter-summary__excerpt--revelation {
    border-left-color: var(--water-500, #4FC3F7);
}

.chapter-summary__excerpt--hook {
    border-left-color: #a78bfa;
}

.chapter-summary__excerpt--science {
    border-left-color: #34d399;
}

.chapter-summary__excerpt--warning {
    border-left-color: #f87171;
}

.chapter-summary__excerpt--practice {
    border-left-color: #fbbf24;
}

.chapter-summary__excerpt--wisdom {
    border-left-color: #818cf8;
}

/* ====================
   WATER WISDOM (Random)
   ==================== */

.water-wisdom {
    position: relative;
    max-width: 640px;
    margin: 2.5rem auto;
    padding: 2.5rem 2rem;
    background: var(--excerpt-card-bg);
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--excerpt-shadow);
    border: 1px solid var(--excerpt-border);
    overflow: hidden;
}

/* Animated top border */
.water-wisdom::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg,
        var(--water-300, #B3E5FC) 0%,
        var(--water-400, #81D4FA) 25%,
        var(--water-500, #4FC3F7) 50%,
        var(--water-600, #00B4D8) 75%,
        var(--water-500, #4FC3F7) 100%);
    background-size: 200% 100%;
    animation: wave-flow 4s ease-in-out infinite;
}

@keyframes wave-flow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Decorative corner glow */
.water-wisdom::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle at top right,
        var(--excerpt-accent-glow) 0%,
        transparent 60%);
    pointer-events: none;
}

.water-wisdom__icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg,
        var(--water-400, #81D4FA) 0%,
        var(--water-600, #00B4D8) 100%);
    border-radius: 50%;
    color: white;
    box-shadow:
        0 8px 24px rgba(0, 180, 216, 0.3),
        0 0 0 8px var(--excerpt-accent-glow);
    animation: float-gentle 4s ease-in-out infinite;
}

@keyframes float-gentle {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

.water-wisdom__icon svg {
    width: 32px;
    height: 32px;
}

.water-wisdom__quote {
    border: none;
    padding: 0;
    margin: 0 0 1.5rem;
}

.water-wisdom__quote p {
    font-size: 1.25rem;
    line-height: 1.75;
    font-style: italic;
    color: var(--excerpt-text);
    margin: 0;
}

.water-wisdom__source {
    font-size: 1rem;
    color: var(--excerpt-accent);
    font-weight: 600;
    letter-spacing: 0.02em;
}

/* ====================
   SHIMMER EFFECT
   ==================== */

/* Shimmer uses ::after pseudo-element */
.water-excerpt::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.12) 50%,
        transparent 100%);
    transition: left 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    z-index: 3;
}

.water-excerpt:hover::after {
    left: 150%;
}

/* Dark mode shimmer adjustment */
.dark-mode .water-excerpt::after,
[data-theme="dark"] .water-excerpt::after {
    background: linear-gradient(90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.06) 50%,
        transparent 100%);
}

/* ====================
   ACCESSIBILITY
   ==================== */

@media (prefers-reduced-motion: reduce) {
    .water-excerpt,
    .featured-excerpt,
    .water-wisdom__icon,
    .featured-excerpt__ripple,
    .featured-excerpt__wave-bg,
    .water-wisdom::before {
        animation: none !important;
    }

    .water-excerpt,
    .featured-excerpt,
    .water-excerpt__ripple,
    .water-excerpt::after {
        transition: none !important;
    }

    .water-excerpt:hover,
    .featured-excerpt:hover {
        transform: none;
    }

    .water-excerpt:hover::after {
        left: -100%;
    }
}

/* ====================
   DARK MODE - CLASS BASED
   ==================== */

/* Support both .dark-mode and [data-theme="dark"] patterns */
.dark-mode .chapter-epigraph__quote,
.dark-mode .chapter-summary__title,
[data-theme="dark"] .chapter-epigraph__quote,
[data-theme="dark"] .chapter-summary__title {
    color: var(--excerpt-text);
}

.dark-mode .chapter-epigraph::before,
[data-theme="dark"] .chapter-epigraph::before {
    opacity: 0.15;
}

/* Ensure all text is readable in dark mode */
.dark-mode .water-excerpt__text,
.dark-mode .featured-excerpt__quote p,
.dark-mode .chapter-summary__excerpt p,
.dark-mode .water-wisdom__quote p,
[data-theme="dark"] .water-excerpt__text,
[data-theme="dark"] .featured-excerpt__quote p,
[data-theme="dark"] .chapter-summary__excerpt p,
[data-theme="dark"] .water-wisdom__quote p {
    color: var(--excerpt-text);
}

.dark-mode .water-excerpt__source,
.dark-mode .featured-excerpt__meta,
.dark-mode .water-wisdom__source,
.dark-mode .featured-excerpt__title,
.dark-mode .chapter-summary__excerpt-title,
[data-theme="dark"] .water-excerpt__source,
[data-theme="dark"] .featured-excerpt__meta,
[data-theme="dark"] .water-wisdom__source,
[data-theme="dark"] .featured-excerpt__title,
[data-theme="dark"] .chapter-summary__excerpt-title {
    color: var(--excerpt-accent);
}

.dark-mode .water-excerpt__title,
.dark-mode .featured-excerpt__chapter-title,
.dark-mode .chapter-summary__subtitle,
[data-theme="dark"] .water-excerpt__title,
[data-theme="dark"] .featured-excerpt__chapter-title,
[data-theme="dark"] .chapter-summary__subtitle {
    color: var(--excerpt-text-muted);
}

/* Warning type in dark mode */
.dark-mode .water-excerpt--type-warning,
[data-theme="dark"] .water-excerpt--type-warning {
    background: linear-gradient(135deg,
        rgba(248, 113, 113, 0.1) 0%,
        var(--excerpt-card-bg) 40%);
}

/* ====================
   PRINT STYLES
   ==================== */

@media print {
    .water-excerpt,
    .featured-excerpt,
    .chapter-summary,
    .water-wisdom {
        box-shadow: none;
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }

    .water-excerpt::before,
    .water-excerpt::after,
    .featured-excerpt::after,
    .water-wisdom::before,
    .water-wisdom::after,
    .featured-excerpt__wave-bg,
    .featured-excerpt__ripple-container,
    .water-excerpt__ripple {
        display: none;
    }
}