/*
 * Custom Styles for Mr. John F. Miller Promotional Website
 * Tailwind Utility Classes are primarily used, but this file defines
 * custom variables, media queries, and bespoke interactions (like navigation).
 */

/* --- 1. Project-Wide CSS Variables --- */
:root {
    /* Color Palette */
    --color-oxford-blue: #002147;
    /* Primary Dark (Academic) */
    --color-cream: #F5F5DC;
    /* Primary Light (Base background) */
    --color-charcoal: #36454F;
    /* Secondary Dark */
    --color-gold: #FFD700;
    /* Accent (Subtle Playfulness/Emphasis) */

    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Lato', sans-serif;

    /* Line Heights for Improved Readability */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Section Spacing Standard */
    --section-padding: var(--spacing-xl);
    /* 8rem for consistent section spacing */

    /* Transition Timing */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Apply base styling to body */
body {
    font-family: var(--font-sans);
    line-height: var(--line-height-normal);
    background-color: var(--color-cream);
    color: var(--color-charcoal);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    /* Prevent horizontal scroll */
    -webkit-font-smoothing: antialiased;
    /* Clean text rendering */
    text-rendering: optimizeLegibility;
    /* Modern text rendering */
}

/* Standard Section Spacing */
.section {
    padding: var(--section-padding) 0;
}

.section-sm {
    padding: calc(var(--section-padding) / 2) 0;
}

.section-lg {
    padding: calc(var(--section-padding) * 1.5) 0;
}

/* Typography improvements for headings */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-serif);
    line-height: var(--line-height-tight);
    font-weight: 700;
    letter-spacing: 0.025em;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3.5rem;
}

/* Hero Title Styling */
.hero-title {
    font-family: 'Playfair Display';
    color: #F5F5DC;
    text-align: center;
    margin-bottom: 2rem;
}

/* Hero Subtitle Styling */
.hero-subtitle {
    font-family: 'Lato';
    color: #F5F5DC;
    text-align: center;
    max-width: 800px;
}

/* Drop shadow styles for hero text */
.drop-shadow-lg {
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.drop-shadow-md {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Responsive adjustments for hero title */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 2rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1.125rem;
}

/* Typography improvements for paragraphs */
p {
    font-family: var(--font-sans);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

/* Quote Typography Styles */
.quote-text {
    font-family: var(--font-serif);
    /* Use serif font for quotes to distinguish them */
    line-height: 1.8;
    /* Comfortable reading rhythm as requested */
    font-size: 1.25rem;
    /* Slightly larger than regular paragraphs */
    font-style: italic;
    /* Italic styling for quotes */
    opacity: 0.9;
    /* Slightly reduced opacity for subtle effect */
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-gold);
    /* Gold accent bar on left */
    position: relative;
}

/* Quote color adjustments for different backgrounds */
.bg-cream .quote-text {
    color: var(--color-charcoal);
    /* Dark text on light background */
}

.bg-oxford-blue .quote-text {
    color: var(--color-cream);
    /* Light text on dark background */
}

/* Quote attribution styling */
.quote-text .quote-attribution {
    display: block;
    text-align: right;
    font-size: 0.9rem;
    font-style: normal;
    font-family: var(--font-sans);
    margin-top: var(--spacing-sm);
    opacity: 0.8;
}

/* Attribution color adjustments for different backgrounds */
.bg-cream .quote-text .quote-attribution {
    color: var(--color-charcoal);
}

.bg-oxford-blue .quote-text .quote-attribution {
    color: var(--color-cream);
}

/* Quote mark styling */
.quote-text::before {
    content: '"';
    font-size: 3rem;
    color: var(--color-gold);
    opacity: 0.3;
    position: absolute;
    left: -0.5rem;
    top: -0.5rem;
    font-family: var(--font-serif);
}

/* Responsive adjustments for quotes */
@media (max-width: 768px) {
    .quote-text {
        font-size: 1.1rem;
        padding-left: var(--spacing-sm);
    }

    .quote-text::before {
        font-size: 2.5rem;
        top: -0.3rem;
    }
}

/* Primary Button Styles */
.btn-primary,
.btn-convert {
    background-color: var(--color-gold);
    /* Deep Gold background */
    color: var(--color-oxford-blue);
    /* Oxford Blue text */
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 2rem;
    /* Consistent padding */
    border: none;
    border-radius: 0.5rem;
    /* Consistent border-radius */
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-decoration: none;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover,
.btn-convert:hover {
    transform: translateY(-2px);
    /* Consistent lift effect */
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background-color: #FFC700;
    /* Slightly darker gold on hover */
}

.btn-primary:active,
.btn-convert:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary:focus,
.btn-convert:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Button ripple effect */
.btn-primary::before,
.btn-convert::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:active::before,
.btn-convert:active::before {
    width: 300px;
    height: 300px;
}

/* --- 2. Full-Screen Video Background --- */
.hero-video-container {
    /* Position video fixed to viewport */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: -10;
    /* Keep it behind all content */
}

.hero-video-container video {
    /* Ensure video covers entire container while maintaining aspect ratio */
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    /* The initial color overlay before asset loads, matching Oxford Blue */
    background-color: var(--color-oxford-blue);
    object-fit: cover;
    /* Important for covering space */
    filter: brightness(0.4) opacity(0.8);
    /* Subtly dim video to keep text readable */
}

/* --- 3. Custom Navigation Hover Effect (Contrast Fixed) --- */

/* Style for individual navigation links */
.nav-link {
    position: relative;
    display: inline-block;
    padding: 0.75rem 1.25rem;
    color: var(--color-cream);
    /* Default to Cream for transparent Hero background */
    transition: color 0.3s ease, background-color 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.025em;
}

/* The 'path' (underline/border) element */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    /* Start with zero width (invisible) */
    height: 3px;
    background-color: var(--color-gold);
    /* The gold path color (the accent) */
    transition: width var(--transition-normal);
}

/* Hover State: The path appears (grows from center) */
.nav-link:hover::after {
    width: 100%;
    /* Grow path to full width */
}

/* Hover State: Keep text color as Cream for high contrast. */
.nav-link:hover {
    color: var(--color-cream);
    transform: translateY(-2px);
}

.nav-link:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.5);
}

/* Default navigation color (Cream) for transparent Hero background */
nav .nav-link {
    color: var(--color-cream);
    /* Cream text on transparent Hero background */
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* Navigation brand/site name color transitions */
nav .text-xl {
    color: var(--color-cream);
    /* Cream text on transparent Hero background */
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* Explicit title contrast rules for navigation */
nav:not(.scrolled-nav) .text-xl,
nav:not(.scrolled-nav) button {
    color: var(--color-cream) !important;
}

/* Force navigation title to be cream color when navbar is transparent */
nav:not(.scrolled-nav) .text-xl {
    color: var(--color-cream) !important;
}

.scrolled-nav .text-xl,
.scrolled-nav button {
    color: var(--color-oxford-blue) !important;
}

/* Glass Header Effect - scrolled-nav class */
.scrolled-nav {
    background-color: rgba(245, 245, 220, 0.95);
    /* Cream glass effect */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Ensure text color in scrolled-nav is high-contrast */
.scrolled-nav .nav-link {
    color: var(--color-oxford-blue);
    /* Oxford Blue text on Cream background */
}

.scrolled-nav .text-xl {
    color: var(--color-oxford-blue);
    /* Oxford Blue text on Cream background */
}

/* Logo text color rules */
nav .logo-text {
    color: #F5F5DC !important;
    /* Default */
}

.scrolled-nav .logo-text {
    color: #002147 !important;
    /* Scrolled */
}

/* --- 4. Books Showcase Specific Styles --- */

/* Set a consistent size for book cover containers */
.book-cover-container {
    width: 400px;
    /* Target size */
    height: 600px;
    /* Target size */
    overflow: hidden;
    transition: all var(--transition-normal);
    border-radius: 0.5rem;
    position: relative;
    cursor: pointer;
}

/* Book hover effects */
.book-cover-container:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 33, 71, 0.3);
}

.book-cover-container:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Add a subtle glow effect on hover */
.book-cover-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(255, 215, 0, 0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.book-cover-container:hover::after {
    opacity: 1;
}


/* --- 5. Insights Section Specific Styles (Quote Cards) --- */

/* Set a consistent size for book cover containers */
.insight-card {
    /* Base style for interactive quote cards */
    background-color: var(--color-oxford-blue);
    border: 1px solid var(--color-gold);
    transition: all var(--transition-normal);
    border-radius: 0.5rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    padding: 1.5rem;
    /* Increased padding for better readability */
    line-height: var(--line-height-relaxed);
    /* Increased line height for better readability */
}

/* Ensure all text in insight cards is cream for high contrast */
.insight-card,
.insight-card p,
.insight-card div {
    color: var(--color-cream);
}

/* Fix h3 (Title) to be gold but legible with proper contrast */
.insight-card h3 {
    color: var(--color-gold);
    font-size: 1.5rem;
    /* Increased font size for better readability */
    line-height: var(--line-height-normal);
    margin-bottom: 1rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    /* Add shadow for better contrast */
}

/* Ensure quote text has proper contrast and readability */
.insight-card .quote-text {
    color: var(--color-cream);
    font-size: 1.125rem;
    /* Slightly larger for better readability */
    line-height: var(--line-height-relaxed);
    margin-bottom: 1rem;
    opacity: 1;
    /* Full opacity for better contrast */
}

/* Ensure reveal content text is cream with good contrast */
.insight-card .insight-reveal-content {
    color: var(--color-cream);
    line-height: var(--line-height-relaxed);
}

.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    border-color: #FFC700;
}

.insight-card:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Add a subtle glow effect on hover */
.insight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(to right, transparent, var(--color-gold), transparent);
    transform: translateY(-100%);
    transition: transform var(--transition-normal);
}

.insight-card:hover::before {
    transform: translateY(0);
}

.insight-reveal-content {
    /* Initially hidden content for interactive reveal feature */
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s ease-in-out, opacity 0.5s ease-in-out;
}

.insight-card.active .insight-reveal-content {
    /* Class to be toggled by Vanilla JS */
    max-height: 500px;
    /* Large enough to accommodate text */
    opacity: 1;
    padding-top: 1rem;
}

/* Ensure active state maintains proper contrast */
.insight-card.active {
    background-color: var(--color-oxford-blue);
}

/* Fix any gold text in reveal content to be more legible */
.insight-card .insight-reveal-content .text-gold,
.insight-card .insight-reveal-content p.text-gold {
    color: var(--color-gold);
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    /* Add shadow for better contrast */
}

/* --- 6. About Section Specific Styles --- */

.about-section {
    /* Subtle scrolling effect for about section */
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--color-cream));
    z-index: 1;
}

/* --- 7. Contact Form Specific Styles --- */

.contact-form {
    /* Base styles for contact form */
    transition: all var(--transition-normal);
    padding: var(--spacing-lg);
    border-radius: 0.5rem;
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
}

.form-field {
    /* Individual form field container */
    position: relative;
    margin-bottom: var(--spacing-md);
}

.form-input {
    /* Base styles for form inputs */
    transition: all var(--transition-normal);
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.375rem;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-cream);
    font-family: var(--font-sans);
    font-size: 1rem;
}

.form-input:focus {
    /* Focus state for form inputs */
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
    outline: none;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-input.invalid {
    /* Invalid state for form inputs */
    border-color: #dc3545;
    background-color: rgba(220, 53, 69, 0.1);
}

.error-message {
    /* Style for inline error messages */
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
    animation: fadeIn var(--transition-normal);
}

.success-message {
    /* Style for success message */
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 1rem;
    border-radius: 0.375rem;
    margin-top: var(--spacing-md);
    animation: slideDown var(--transition-slow);
}

.form-button {
    /* Style for form submission button - now using btn-primary styles */
    background-color: var(--color-gold);
    /* Deep Gold background */
    color: var(--color-oxford-blue);
    /* Oxford Blue text */
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 2rem;
    /* Consistent with other buttons */
    border: none;
    border-radius: 0.5rem;
    /* Consistent with other buttons */
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.form-button:hover {
    transform: translateY(-2px);
    /* Consistent lift effect */
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background-color: #FFC700;
    /* Slightly darker gold on hover */
}

.form-button:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.form-button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Button ripple effect */
.form-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.form-button:active::before {
    width: 300px;
    height: 300px;
}

/* Conditional phone field transition */
#phoneField {
    transition: all var(--transition-normal);
    overflow: hidden;
}

#phoneField.hidden {
    max-height: 0;
    opacity: 0;
    margin-bottom: 0;
}

#phoneField:not(.hidden) {
    max-height: 200px;
    opacity: 1;
    margin-bottom: var(--spacing-md);
}

/* Animation keyframes */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        max-height: 0;
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        max-height: 500px;
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
    }

    100% {
        box-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
    }
}

/* Utility classes for common effects */
.hover-lift {
    transition: transform var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: all var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.hover-scale {
    transition: transform var(--transition-normal);
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* Interactive link styles */
.interactive-link {
    position: relative;
    color: var(--color-gold);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.interactive-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-gold);
    transition: width var(--transition-normal);
}

.interactive-link:hover {
    color: #FFC700;
}

.interactive-link:hover::after {
    width: 100%;
}

/* Card component styles */
.card {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--color-gold);
}



/* --- 8. Scroll Reveal Animations --- */

/* Base styles for reveal elements */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* State when element is revealed */
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* CSS Fallback Safety Net for Reveal Animations */
/* This rule ensures content is always visible if JavaScript fails to add 'active' class */
/* It uses a media query with a condition that's always true, giving it high specificity */
/* while allowing normal animation system to work when JavaScript is functional */
@media all {
    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* Smooth scrolling for entire page */
html {
    scroll-behavior: smooth;
}

/* Reveal variations for different effects */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-fade-up.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-fade-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-fade-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-fade-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-fade-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Staggered reveal for lists or grids */
.reveal-stagger-1 {
    transition-delay: 0.1s;
}

.reveal-stagger-2 {
    transition-delay: 0.2s;
}

.reveal-stagger-3 {
    transition-delay: 0.3s;
}

.reveal-stagger-4 {
    transition-delay: 0.4s;
}

.reveal-stagger-5 {
    transition-delay: 0.5s;
}

/* Delay classes for sequential animations */
.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

.reveal-delay-4 {
    transition-delay: 0.4s;
}

.reveal-delay-5 {
    transition-delay: 0.5s;
}


/* Enhanced focus styles for better accessibility during smooth scrolling */
:focus {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-gold);
    color: var(--color-oxford-blue);
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Performance optimization for scroll animations */
.reveal {
    will-change: opacity, transform;
}

/* Remove will-change after animation completes */
.reveal.active {
    will-change: auto;
}

/* --- 9. Key Concepts Section Styles --- */
.concept-item {
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-gold);
    background-color: rgba(0, 33, 71, 0.02);
    border-radius: 0 0.5rem 0.5rem 0;
    transition: all var(--transition-normal);
    height: 100%;
}

.concept-item:hover {
    transform: translateX(5px);
    background-color: rgba(0, 33, 71, 0.05);
    box-shadow: 0 5px 15px rgba(0, 33, 71, 0.1);
}

.concept-item dt {
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.concept-item dt::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--color-gold);
}

/* Responsive adjustments for Key Concepts grid */
@media (max-width: 768px) {
    .grid.md\:grid-cols-3 {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid.md\:grid-cols-3 {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
}

/* --- 10. FAQ Section Styles --- */
.faq-item {
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.faq-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-color: var(--color-gold);
}

/* Style for summary element (question) */
.faq-item summary {
    background-color: transparent;
    border: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    user-select: none;
    /* Prevent text selection on click */
    position: relative;
    padding-right: 2rem;
    /* Space for default marker */
}

.faq-item summary:hover {
    background-color: rgba(0, 33, 71, 0.05);
}

.faq-item summary:focus {
    background-color: rgba(0, 33, 71, 0.05);
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

/* Style for details content (answer) */
.faq-item div {
    animation: fadeIn var(--transition-normal);
}

/* Custom marker for details element */
.faq-item summary::marker {
    color: var(--color-oxford-blue);
    font-size: 1.2rem;
}

/* Responsive adjustments for FAQ */
@media (max-width: 768px) {
    .faq-item summary {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
        padding-right: 2rem;
        /* Space for default marker */
    }

    .faq-item div {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }
}

/* --- PREMIUM VISUAL FIX (00:10) --- */
/* Target both Carousel Card and Details Panel */
.insight-card,
#detailsPanel {
    /* 1. LAYOUT & CENTERING */
    display: block !important;
    margin: 3rem auto !important;
    /* Center horizontally with vertical breathing room */
    max-width: 900px !important;
    /* Prevent full-width stretching */
    width: 90% !important;
    /* Responsive width for mobile */
    position: relative !important;
    z-index: 10 !important;

    /* 2. COLORS & BACKGROUND */
    background-color: #002147 !important;
    /* Oxford Blue */
    background: linear-gradient(145deg, #002147, #001a38) !important;
    /* Subtle depth */
    color: #F5F5DC !important;
    /* Cream */

    /* 3. BORDERS & SHADOWS (IMPACT) */
    border: 1px solid #FFD700 !important;
    /* Elegant Gold Border */
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5) !important;
    /* Deep shadow for "pop" */
    border-radius: 8px !important;

    /* 4. SPACING & TYPOGRAPHY */
    padding: 3rem !important;
    text-align: center !important;
    /* Center text content */
}

/* Elegant Typography for Headers */
.insight-card h3,
#detailsPanel h2,
#detailsPanel h3 {
    font-family: 'Playfair Display', serif !important;
    color: #FFD700 !important;
    /* Gold */
    font-size: 2.2rem !important;
    margin-bottom: 1.5rem !important;
    letter-spacing: 0.05em !important;
    border-bottom: 1px solid rgba(255, 215, 0, 0.2) !important;
    padding-bottom: 1rem !important;
    display: inline-block !important;
    /* Allows border to wrap text only */
}

/* Readable Body Text */
.insight-card p,
#detailsPanel p {
    font-family: 'Lato', sans-serif !important;
    font-size: 1.2rem !important;
    line-height: 1.8 !important;
    color: #F5F5DC !important;
    max-width: 700px !important;
    /* readable line length */
    margin: 0 auto 1.5rem auto !important;
}

/* Hide ugly list if it exists */
.related-quotes-list {
    display: none !important;
}

/* --- END PREMIUM FIX --- */
/* Ensure multiple cards stack with adequate vertical separation */
.insight-card {
    margin-bottom: 4rem !important;
}

/* --- 11. FAQ Icon Rotation --- */
.rotate-180 {
    transform: rotate(180deg);
    transition: transform 0.3s ease;
}

/* --- 12. Assessment Section Styles --- */

/* Assessment card container */
#assessmentsContainer {
    min-height: 400px;
    /* Ensure container has height even when empty */
}

/* Assessment card styling */
.assessment-card {
    background-color: var(--color-oxford-blue);
    border: 1px solid var(--color-gold);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.assessment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: #FFC700;
}

/* Assessment card title */
.assessment-card h3 {
    color: var(--color-gold);
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 215, 0, 0.3);
    padding-bottom: 0.5rem;
}

/* Assessment card description */
.assessment-card p {
    color: var(--color-cream);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* Assessment card button */
.assessment-card .btn-primary {
    background-color: var(--color-gold);
    color: var(--color-oxford-blue);
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    text-align: center;
    display: inline-block;
    text-decoration: none;
    transition: all var(--transition-normal);
    margin-top: auto;
}

.assessment-card .btn-primary:hover {
    background-color: #FFC700;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Loading spinner animation */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* Responsive adjustments for assessment cards */
@media (max-width: 768px) {
    .assessment-card {
        margin-bottom: 1.5rem;
    }

    .assessment-card h3 {
        font-size: 1.3rem;
    }

    .assessment-card p {
        font-size: 1rem;
    }
}

/* ==================== QUIZ ENGINE STYLES ==================== */

/* Quiz Interface Container */
.quiz-interface {
    background-color: var(--color-oxford-blue);
    border: 1px solid var(--color-gold);
    border-radius: 0.5rem;
    padding: 2rem 2rem 8rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
}

/* Quiz Header */
.quiz-header {
    position: relative;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
}

/* Exit Quiz Button */
.btn-quiz-exit {
    position: absolute;
    top: 0;
    right: 0;
    background: transparent;
    border: 1px solid rgba(255, 215, 0, 0.5);
    color: var(--color-cream);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border-radius: 0.375rem;
    font-family: var(--font-sans);
    font-weight: 500;
}

.btn-quiz-exit:hover {
    background: rgba(255, 215, 0, 0.1);
    border-color: var(--color-gold);
    color: var(--color-cream);
}

.btn-quiz-exit:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Return to Lobby Button */
.btn-quiz-return-lobby {
    background-color: var(--color-gold);
    color: var(--color-oxford-blue);
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    margin-right: 1rem;
}

.btn-quiz-return-lobby:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background-color: #FFC700;
}

.btn-quiz-return-lobby:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-quiz-return-lobby:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Progress Bar */
.quiz-progress-container {
    margin-bottom: 2rem;
}

.quiz-progress-bar {
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-gold), #FFC700);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.quiz-progress-text {
    text-align: center;
    color: var(--color-cream);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.current-question {
    font-weight: bold;
    color: var(--color-gold);
}

/* Question Container */
.quiz-question-container {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.quiz-question-text {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-cream);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0.5rem;
}

.quiz-question-context {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: rgba(245, 245, 220, 0.8);
    line-height: var(--line-height-normal);
    font-style: italic;
}

/* Likert Scale Container */
.quiz-scale-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1.5rem;
}

/* Scale Buttons */
.quiz-scale-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    width: 100%;
}

.quiz-scale-btn {
    flex: 1;
    min-width: 80px;
    padding: 1rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 215, 0, 0.2);
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-sans);
    font-size: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.quiz-scale-btn:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: var(--color-gold);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.quiz-scale-btn.selected {
    background-color: var(--color-gold);
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.3);
}

.quiz-scale-btn:active {
    transform: translateY(-1px);
}

.quiz-scale-btn:focus {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

.score-value {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-oxford-blue);
}

.score-label {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-cream);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Navigation Buttons */
.quiz-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    gap: 1rem;
}

.btn-quiz {
    background-color: var(--color-gold);
    color: var(--color-oxford-blue);
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-quiz:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background-color: #FFC700;
}

.btn-quiz:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-quiz:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

.btn-quiz:disabled {
    background-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn-quiz-prev {
    margin-right: auto;
}

.btn-quiz-next,
.btn-quiz-submit {
    margin-left: auto;
}

/* Quiz Results */
.quiz-results {
    background-color: var(--color-oxford-blue);
    border: 1px solid var(--color-gold);
    border-radius: 0.5rem;
    padding: 2rem;
    margin-top: 2rem;
    animation: fadeIn 0.5s ease;
}

.quiz-results-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
}

.quiz-results-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 1rem;
}

.quiz-score-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
}

.score-label {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-cream);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

/* Quiz Result Content */
.quiz-result-content {
    margin-bottom: 2rem;
}

.result-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 1rem;
}

.result-summary {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-cream);
    margin-bottom: 1.5rem;
}

.result-recommendation {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--color-gold);
}

.result-recommendation strong {
    color: var(--color-gold);
    display: block;
    margin-bottom: 0.5rem;
}

.result-recommendation p {
    color: var(--color-cream);
    margin: 0;
}

/* Quiz Results Actions */
.quiz-results-actions {
    text-align: center;
    margin-top: 2rem;
}

.btn-quiz-retake {
    background-color: var(--color-gold);
    color: var(--color-oxford-blue);
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-quiz-retake:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    background-color: #FFC700;
}

.btn-quiz-retake:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-quiz-retake:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.5);
}

/* Quiz Error */
.quiz-error {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid #dc3545;
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    margin: 2rem auto;
}

.quiz-error .error-message {
    color: #dc3545;
    font-size: 1rem;
    margin: 0;
}

/* ==================== RTL SUPPORT ==================== */

/* RTL Layout Adjustments */
.quiz-interface[dir="rtl"] {
    text-align: right;
}

.quiz-interface[dir="rtl"] .quiz-progress-text {
    text-align: right;
}

/* RTL Exit Button Positioning */
.quiz-interface[dir="rtl"] .btn-quiz-exit {
    right: auto;
    left: 0;
}

/* RTL Exit Button Positioning */
.quiz-interface[dir="rtl"] .btn-quiz-exit {
    right: auto;
    left: 0;
}

.quiz-interface[dir="rtl"] .quiz-question-text,
.quiz-interface[dir="rtl"] .quiz-question-context {
    text-align: right;
}

.quiz-interface[dir="rtl"] .quiz-scale-buttons {
    flex-direction: row-reverse;
}

.quiz-interface[dir="rtl"] .quiz-scale-btn {
    flex-direction: column;
}

.quiz-interface[dir="rtl"] .quiz-navigation {
    flex-direction: row-reverse;
}

.quiz-interface[dir="rtl"] .btn-quiz-prev {
    margin-right: auto;
    margin-left: 1rem;
}

.quiz-interface[dir="rtl"] .btn-quiz-next,
.quiz-interface[dir="rtl"] .btn-quiz-submit {
    margin-left: 1rem;
    margin-right: auto;
}

.quiz-results[dir="rtl"] {
    text-align: right;
}

.quiz-results[dir="rtl"] .result-recommendation {
    border-left: none;
    border-right: 4px solid var(--color-gold);
    padding-right: 1.5rem;
    padding-left: 0;
}

.quiz-results[dir="rtl"] .result-recommendation strong {
    display: block;
    margin-bottom: 0.5rem;
    margin-left: 0;
    margin-right: 0.5rem;
}

/* ==================== RESPONSIVE DESIGN ==================== */

@media (max-width: 768px) {
    .quiz-interface {
        padding: 1.5rem 1.5rem 6rem 1.5rem;
        margin: 0 1rem;
    }

    .quiz-header {
        padding-bottom: 0.75rem;
    }

    .btn-quiz-exit {
        position: relative;
        width: 100%;
        margin-bottom: 1rem;
        text-align: center;
    }

    .quiz-question-text {
        font-size: 1.1rem;
    }

    .quiz-scale-buttons {
        gap: 0.5rem;
    }

    .quiz-scale-btn {
        min-width: 60px;
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

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

    .quiz-results-title {
        font-size: 1.5rem;
    }

    .quiz-navigation {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn-quiz {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .btn-quiz-return-lobby {
        width: 100%;
        margin-right: 0;
        margin-bottom: 0.75rem;
    }
}

@media (max-width: 480px) {
    .quiz-scale-buttons {
        flex-direction: column;
        width: 100%;
    }

    .quiz-scale-btn {
        width: 100%;
        min-width: auto;
    }

    .quiz-navigation {
        flex-direction: column;
        width: 100%;
    }

    .btn-quiz {
        width: 100%;
        padding: 0.6rem 1rem;
    }
}

/* ============================================
   QUIZ LOBBY STYLES
   ============================================ */

.quiz-lobby {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem 1rem 8rem 1rem;
}

.quiz-lobby-title {
    color: var(--color-gold);
    font-family: var(--font-serif);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 700;
}

.quiz-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.quiz-card {
    background: var(--color-cream);
    border: 2px solid var(--color-gold);
    border-radius: 0.5rem;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 250px;
}

.quiz-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.quiz-card-title {
    color: var(--color-gold);
    font-family: var(--font-serif);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.quiz-card-description {
    color: var(--color-charcoal);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.btn-start-quiz {
    background-color: var(--color-gold);
    color: var(--color-oxford-blue);
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1rem;
    align-self: flex-start;
}

.btn-start-quiz:hover {
    background-color: #FFC700;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-quiz-return-lobby {
    margin-right: 0;
}

.quiz-lobby.rtl {
    direction: rtl;
}

.quiz-lobby.rtl .quiz-card-title,
.quiz-lobby.rtl .quiz-card-description {
    text-align: right;
}

/* Responsive Design */
@media (max-width: 768px) {
    .quiz-lobby {
        padding: 0.5rem 0.5rem 6rem 0.5rem;
    }

    .quiz-lobby-title {
        font-size: 2rem;
    }

    .quiz-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .quiz-card {
        padding: 1.5rem;
        min-height: auto;
    }

    .quiz-card-title {
        font-size: 1.25rem;
    }

    .quiz-card-description {
        font-size: 0.95rem;
    }

    .btn-start-quiz {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .quiz-lobby {
        padding: 0.5rem;
    }

    .quiz-lobby-title {
        font-size: 1.75rem;
    }

    .quiz-card {
        padding: 1.25rem;
    }
}