* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #0f0f1e 0%, #1a1a2e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    padding: 30px 0 20px;
    background: rgba(46, 46, 74, 0.4);
    border-radius: 16px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 0 40px 20px 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-left {
    display: flex;
    gap: 24px;
}

.nav-right {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: #b0b0b0;
    text-decoration: none;
    font-size: 1em;
    font-weight: 500;
    transition: all 0.3s;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-link:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.nav-link.active {
    color: #667eea;
    background: rgba(102, 126, 234, 0.15);
    font-weight: 600;
}

h1 {
    font-size: 2.5em;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.header p {
    color: #b0b0b0;
    font-size: 1.05em;
}

.main-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    align-items: start;
}

/* Filter Menu Styles */
.filter-menu {
    background: rgba(46, 46, 74, 0.6);
    backdrop-filter: blur(10px);
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.filter-menu::-webkit-scrollbar {
    width: 8px;
}

.filter-menu::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.filter-menu::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: 4px;
}

.filter-menu h2 {
    color: #ffffff;
    font-size: 1.4em;
    margin-bottom: 24px;
    font-weight: 600;
}

.filter-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.filter-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.filter-section h3 {
    color: #e0e0e0;
    font-size: 1em;
    margin-bottom: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85em;
}

.filter-checkbox {
    display: flex;
    align-items: center;
    padding: 8px 0;
    color: #c0c0c0;
    font-size: 0.95em;
    cursor: pointer;
    transition: color 0.2s;
}

.filter-checkbox:hover {
    color: #667eea;
}

.filter-checkbox input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #667eea;
}

.filter-slider {
    padding: 8px 0;
}

.filter-slider label {
    display: inline-block;
    color: #b0b0b0;
    font-size: 0.9em;
    margin-bottom: 6px;
    margin-right: 8px;
    min-width: 35px;
}

.filter-slider input[type="range"] {
    width: calc(100% - 80px);
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    -webkit-appearance: none;
    margin: 0 8px;
}

.filter-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    transition: transform 0.2s;
}

.filter-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.filter-slider input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #667eea;
    cursor: pointer;
    border: none;
}

.filter-slider span {
    display: inline-block;
    min-width: 40px;
    color: #667eea;
    font-weight: 600;
    font-size: 0.9em;
}

/* Main Content Area */
.main-content {
    min-height: 400px;
}

.about-content {
    background: rgba(46, 46, 74, 0.6);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(102, 126, 234, 0.1);
    color: #e0e0e0;
    line-height: 1.8;
}

/* FAQ Styles */
.faq-section {
    margin-bottom: 2.5em;
    padding-bottom: 2em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.faq-question {
    font-size: 1.4em;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1em;
    line-height: 1.3;
}

.faq-answer {
    color: #c0c0c0;
    font-size: 1.05em;
    line-height: 1.8;
}

.faq-answer p {
    margin-bottom: 1em;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer strong {
    color: #667eea;
    font-weight: 600;
}

.faq-answer code {
    background: rgba(102, 126, 234, 0.2);
    color: #a0b3ff;
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.faq-answer em {
    color: #b0b0d0;
    font-style: italic;
}

.feature-list {
    margin: 1em 0;
    padding-left: 1.5em;
    list-style-type: none;
}

.feature-list li {
    margin-bottom: 0.6em;
    padding-left: 1.2em;
    position: relative;
    color: #b0b0c0;
}

.feature-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.feature-list li:last-child {
    margin-bottom: 0;
}

.controls-bar {
    background: rgba(46, 46, 74, 0.6);
    backdrop-filter: blur(10px);
    padding: 20px 24px;
    border-radius: 16px;
    margin-bottom: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.controls-row {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.control-group label {
    color: #b0b0b0;
    font-size: 0.95em;
    font-weight: 500;
    white-space: nowrap;
}

.control-group select,
.control-group input[type="text"] {
    padding: 10px 14px;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 10px;
    background: rgba(30, 30, 50, 0.8);
    color: #e0e0e0;
    font-size: 0.95em;
    transition: all 0.3s;
}

.control-group select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg fill="%23e0e0e0" height="24" viewBox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"><path d="M7 10l5 5 5-5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    padding-right: 36px;
}

.control-group select:focus,
.control-group input[type="text"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#search-input {
    flex: 1;
    min-width: 250px;
}

.sort-direction-btn {
    background: #3a3a5a; /* Solid dark background */
    color: white;
    border: 1px solid #4a4a6e; /* Darker border */
    border-radius: 10px;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: bold;
    transition: background-color 0.2s; /* Smooth transition for hover */
    box-shadow: none; /* Remove box-shadow */
}

.sort-direction-btn:hover {
    transform: none; /* Remove transform on hover */
    box-shadow: none; /* Ensure no box-shadow on hover */
    background-color: #4a4a6e; /* Slightly lighter on hover */
}

.sort-direction-btn:active {
    transform: none; /* Remove transform on active */
}

/* Pagination */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: rgba(46, 46, 74, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    margin: 24px 0;
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.pagination-controls button {
    background: #3a3a5a; /* Solid dark background */
    color: white;
    border: 1px solid #4a4a6e; /* Darker border */
    border-radius: 10px;
    padding: 12px 24px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 600;
    transition: background-color 0.2s; /* Smooth transition for hover */
    box-shadow: none; /* Remove box-shadow */
}

.pagination-controls button:hover:not(:disabled) {
    transform: none; /* Remove transform on hover */
    box-shadow: none; /* Ensure no box-shadow on hover */
    background-color: #4a4a6e; /* Slightly lighter on hover */
}

.pagination-controls button:disabled {
    background: rgba(60, 60, 80, 0.5);
    color: #606060;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.pagination-controls span {
    color: #e0e0e0;
    font-weight: 600;
    font-size: 1em;
}

/* Media Grid */
#media-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 24px 0;
}

.media-card {
    background: rgba(46, 46, 74, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    display: flex;
    flex-direction: column;
}

.media-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.3);
}

/* Corrected .poster-container styles */
.poster-container {
    width: 100%;
    aspect-ratio: 230 / 329;
    background: linear-gradient(135deg, #2e2e4a 0%, #3e3e60 100%);
    /* Removed flex properties, using absolute positioning for image centering */
    overflow: hidden;
    position: relative;
}

.poster {
    position: absolute; /* Absolute positioning for precise centering */
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* Translate to center */
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.media-card:hover .poster {
    transform: translate(-50%, -50%) scale(1.05); /* Adjust scale for absolute positioning */
}

.media-card .card-body {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Pushes vocab density to bottom */
    flex: 1;
    padding: 20px; /* Ensure padding is applied */
    height: 100%; /* Important for flex to work correctly with auto margins */
}

.media-card .card-content-wrapper {
    overflow: hidden;
    position: relative;
    transition: max-height 0.4s ease-out, mask-image 0.4s ease-out;
}

.media-card.collapsed .card-content-wrapper {
    max-height: 120px; /* Example height, fine-tune this */
    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
}

.media-card:not(.collapsed) .card-content-wrapper {
    max-height: none;
    -webkit-mask-image: none;
    mask-image: none;
}

.fade-out-container {
    position: relative;
    margin-bottom: 5px; /* Adjust spacing as needed */
}

.media-card.collapsed .fade-out-container {
    margin-bottom: 5px; /* Maintain consistent spacing */
}

.media-card:not(.collapsed) .fade-out-container {
    margin-bottom: 10px; /* Restore more space when expanded */
}

/* Adjustments for existing elements within fade-out-container */
.media-genre, .details {
    margin-bottom: 5px; /* Adjust spacing */
}

.media-genre:last-of-type, .details:last-of-type {
    margin-bottom: 0;
}

.media-card.collapsed .details-collapsible {
    max-height: 0;
    overflow: hidden;
    padding-top: 0;
    border-top: none;
    transition: max-height 0.4s ease-out, padding-top 0.4s ease-out, border-top 0.4s ease-out, opacity 0.4s ease-out;
    opacity: 0;
}

.details-collapsible {
    max-height: 500px; /* Adjust as needed for max expanded height */
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding-top 0.4s ease-out, border-top 0.4s ease-out, opacity 0.4s ease-out;
    opacity: 1;
}

/* Keep vocab density at the bottom */
.card-body .vocab-density {
    margin-top: auto; /* Pushes it to the bottom */
    align-self: flex-start; /* Ensures it's aligned to the start of the cross axis */
}

/* Ensure flex column behavior for card-body */
.card-body {
    display: flex;
    flex-direction: column;
    padding: 20px;
    flex: 1;
    height: 100%; /* Important for flex to work correctly with auto margins */
}

.media-title {
    font-size: 1.15em;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.3;
}

.media-japanese {
    font-size: 0.95em;
    color: #a0a0c0;
    font-style: italic;
}

.media-genre {
    font-size: 0.9em;
    color: #8b9eff;
    margin: 4px 0;
}

.details {
    font-size: 0.88em;
    color: #b0b0b0;
    line-height: 1.5;
}

.vocab-density {
    font-size: 0.95em;
    font-weight: 700;
    color: #4ade80;
    background: rgba(74, 222, 128, 0.15);
    border-radius: 8px;
    padding: 8px 14px;
    display: inline-block;
    margin-top: 8px;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.difficulty-details {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.85em;
    color: #a0a0a0;
    line-height: 1.7;
}

.difficulty-details b {
    color: #c0c0c0;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 260px 1fr;
    }
}

@media (max-width: 992px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .filter-menu {
        position: static;
        max-height: none;
    }

    #media-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    h1 {
        font-size: 2em;
    }

    .main-nav {
        flex-direction: column;
        gap: 16px;
        padding: 0 20px 15px 20px;
        margin-bottom: 15px;
    }

    .nav-left,
    .nav-right {
        gap: 16px;
        justify-content: center;
    }

    .nav-link {
        font-size: 0.9em;
        padding: 6px 12px;
    }

    .about-content {
        padding: 24px;
    }

    .controls-row {
        flex-direction: column;
        align-items: stretch;
    }

    .control-group {
        flex-direction: column;
        align-items: stretch;
    }

    .control-group label {
        margin-bottom: 6px;
    }

    #search-input {
        min-width: 100%;
    }

    #media-list {
        grid-template-columns: 1fr;
    }
}