@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,600;1,400&family=Space+Grotesk:wght@400;600;700&display=swap');

:root {
    /* Color System */
    --base: #F4F4F0;
    --text-primary: #1A1A1A;
    --text-secondary: #5A5A58;
    --accent: #E93C3C;
    --accent-hover: #1A1A1A;
    --surface: #FFFFFF;
    --border-dark: #1A1A1A;

    /* Variables for Quiz Results */
    --correct-bg: #E8F5E9;
    --correct-text: #2E7D32;
    --wrong-bg: #FFEBEE;
    --wrong-text: #C62828;

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

    /* Borders */
    --border-thick: 3px solid var(--border-dark);
    --border-thin: 1px solid var(--border-dark);

    /* Transitions */
    --transition-snappy: all 0.2s cubic-bezier(0.2, 0, 0, 1);
}

/* Reset & Normalize */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--base);
    color: var(--text-primary);
    font-family: 'Lora', serif;
    font-size: 1.125rem;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography Overrides */
h1,
h2,
h3,
h4,
h5,
h6,
.brand-logo,
.badge,
.btn,
.nav-links {
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.1;
}

h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    border-bottom: var(--border-thick);
    padding-bottom: var(--space-xs);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
}

p {
    color: var(--text-secondary);
}

a {
    color: inherit;
    text-decoration: none;
}

/* Layout & Structure */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) 5%;
    border-bottom: var(--border-thick);
    background: var(--base);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand-logo {
    font-family: 'Space Grotesk', sans-serif !important;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-transform: uppercase;
}

.logo-img {
    height: 80px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

.nav-links a {
    font-family: 'Space Grotesk', sans-serif !important;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    transition: var(--transition-snappy);
    position: relative;
}

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

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5% var(--space-xl);
}

/* Hero Section */
.hero {
    padding: var(--space-xl) 0;
    border-bottom: var(--border-thin);
    margin-bottom: var(--space-lg);
}

.hero p {
    font-size: 1.5rem;
    max-width: 600px;
    font-family: 'Space Grotesk', sans-serif;
}

/* Story Grid & Cards */
.story-category {
    margin-bottom: var(--space-lg);
}

.story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-md);
}

.story-card {
    background: var(--surface);
    border: var(--border-thick);
    position: relative;
    transition: var(--transition-snappy);
    display: flex;
    flex-direction: column;
}

.story-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: 8px 8px 0px var(--border-dark);
}

.story-card.disabled {
    pointer-events: none;
    opacity: 0.5;
    background: var(--base);
}

.story-image {
    width: 100%;
    height: 240px;
    background-size: cover;
    background-position: center;
    border-bottom: var(--border-thick);
    filter: grayscale(100%) contrast(1.2);
    transition: var(--transition-snappy);
}

.story-card:hover .story-image {
    filter: grayscale(0%) contrast(1);
}

.story-info {
    padding: var(--space-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.badge {
    background: var(--accent);
    color: var(--surface);
    padding: 0.2rem 0.6rem;
    font-size: 0.8rem;
    font-weight: 700;
    align-self: flex-start;
    margin-bottom: var(--space-sm);
    border: 2px solid var(--border-dark);
}

.story-info h3 {
    margin-bottom: var(--space-xs);
}

.story-info p {
    font-family: 'Lora', serif;
    font-size: 1rem;
    line-height: 1.5;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    font-weight: 600;
    color: var(--surface);
    background-color: var(--accent);
    border: var(--border-thick);
    transition: var(--transition-snappy);
    cursor: pointer;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0px var(--border-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--border-dark);
}

.btn-outline:hover {
    background-color: var(--border-dark);
    color: var(--surface);
}

.see-more-container {
    text-align: center;
    margin-top: var(--space-md);
}

/* Story Detail Page View */
.story-container {
    max-width: 800px;
    margin: var(--space-lg) auto;
}

.story-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.story-header .badge {
    margin: 0 auto var(--space-sm);
    display: inline-block;
}

.story-content {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-primary);
    background: var(--surface);
    padding: var(--space-lg);
    border: var(--border-thick);
    box-shadow: 8px 8px 0px var(--border-dark);
    margin-bottom: var(--space-lg);
}

.story-content p {
    margin-bottom: var(--space-md);
    font-size: inherit;
    color: inherit;
    position: relative;
}

.story-content p:last-child {
    margin-bottom: 0;
}

/* Interactive Translation Styling */
.translatable {
    cursor: pointer;
    background-image: linear-gradient(to right, var(--text-primary) 50%, rgba(255, 255, 255, 0) 0%);
    background-position: bottom;
    background-size: 6px 2px;
    background-repeat: repeat-x;
    transition: var(--transition-snappy);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.translatable:hover {
    background-color: rgba(233, 60, 60, 0.1);
}

/* Tooltip Redesign */
.translation-tooltip {
    position: absolute;
    background: var(--border-dark);
    color: var(--surface);
    font-family: 'Space Grotesk', sans-serif;
    padding: 0.8rem 1.2rem;
    font-size: 1rem;
    line-height: 1.4;
    border: 2px solid var(--accent);
    z-index: 1000;
    max-width: 320px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
}

.translation-tooltip.visible {
    opacity: 1;
}

.translation-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -8px;
    border-width: 8px;
    border-style: solid;
    border-color: var(--accent) transparent transparent transparent;
}

/* Loading Dots */
.loading-dots:after {
    content: '.';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {

    0%,
    20% {
        color: rgba(0, 0, 0, 0);
        text-shadow: .25em 0 0 rgba(0, 0, 0, 0), .5em 0 0 rgba(0, 0, 0, 0);
    }

    40% {
        color: white;
        text-shadow: .25em 0 0 rgba(0, 0, 0, 0), .5em 0 0 rgba(0, 0, 0, 0);
    }

    60% {
        text-shadow: .25em 0 0 white, .5em 0 0 rgba(0, 0, 0, 0);
    }

    80%,
    100% {
        text-shadow: .25em 0 0 white, .5em 0 0 white;
    }
}

/* Interactive Sections (Quiz & Vocab) */
.interactive-section {
    margin-top: var(--space-xl);
    display: none;
}

.interactive-section h2 {
    font-size: 2rem;
    text-align: left;
    border-bottom: var(--border-thin);
    margin-bottom: var(--space-md);
}

/* Quiz UI Restyle */
.quiz-section {
    max-width: 800px;
}

.quiz-card {
    background: var(--surface);
    padding: var(--space-md);
    border: var(--border-thick);
    margin-bottom: var(--space-md);
}

.quiz-question {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.quiz-options {
    display: grid;
    gap: var(--space-xs);
}

.quiz-option {
    font-family: 'Lora', serif;
    padding: 1rem 1.5rem;
    border: var(--border-thin);
    background: transparent;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-snappy);
    color: var(--text-primary);
}

.quiz-option:hover:not(:disabled) {
    background: var(--text-primary);
    color: var(--surface);
}

.quiz-option.correct {
    background: var(--correct-bg);
    border-color: var(--correct-text);
    color: var(--correct-text);
    font-weight: 700;
}

.quiz-option.wrong {
    background: var(--wrong-bg);
    border-color: var(--wrong-text);
    color: var(--wrong-text);
}

.quiz-feedback {
    margin-top: var(--space-sm);
    padding: var(--space-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    display: none;
    border: 2px solid transparent;
}

.quiz-feedback.success {
    display: block;
    background: var(--correct-bg);
    color: var(--correct-text);
    border-color: var(--correct-text);
}

.quiz-feedback.error {
    display: block;
    background: var(--wrong-bg);
    color: var(--wrong-text);
    border-color: var(--wrong-text);
}

/* Vocabulary Grid */
.vocab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-sm);
}

.vocab-item {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm);
    background: var(--surface);
    border: var(--border-thick);
    transition: var(--transition-snappy);
    font-family: 'Space Grotesk', sans-serif;
}

.vocab-item:hover {
    transform: translate(-2px, -2px);
    box-shadow: 2px 2px 0px var(--border-dark);
}

.vocab-de {
    font-weight: 700;
    color: var(--text-primary);
}

.vocab-en {
    color: var(--text-secondary);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .story-content {
        padding: var(--space-md);
    }
}

/* Print Styles */
@media print {
    body {
        background-color: #fff;
    }

    .navbar,
    .quiz-section,
    .vocabulary-section,
    .translation-tooltip,
    .btn {
        display: none !important;
    }

    .story-container {
        margin: 0rem auto;
        max-width: none;
        box-shadow: none;
        border: none;
    }

    h1 {
        font-size: 24pt;
        margin-top: 0;
    }

    .story-content {
        font-size: 14pt;
        line-height: 1.6;
        box-shadow: none;
        border: none;
        padding: 0;
    }

    .translatable {
        background-image: none;
    }
}