:root {
    --primary-color: #ffffff;
    --secondary-color: #0daeff; /* Cyan-ish */
    --bg-color: #000000;
    --bg-overlay: rgba(0, 0, 0, 0.7);
    --card-bg: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(255, 255, 255, 0.2);
    --text-color: #ffffff;
    --accent-color: #fffd25; /* Red-ish for accents */
    --skew-angle: -15deg;
    --font-main: 'Exo 2', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    user-select: none;
    --webkit-user-select: none;
}

/* Reset & Base */
* { 
    box-sizing: border-box; 
    margin: 0; 
    padding: 0; 
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
}

.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    flex-direction: column;
    z-index: 1;
}

.screen.active {
    display: flex;
}

/* Backgrounds */
.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
        linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 2px, 3px 100%;
    z-index: -1;
    pointer-events: none;
}

.screen::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, #2b2b2b 0%, #000000 100%);
    z-index: -2;
}

/* Start Screen */
#start-screen {
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.start-content {
    text-align: center;
    animation: fadeIn 2s ease-in-out;
}

.logo {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 0px #00ccff, -2px -2px 0px #00e5ff;
    letter-spacing: 5px;
    animation: glitch 1s infinite alternate;
}

@keyframes glitch {
    0% { text-shadow: 2px 2px 0px #00ccff, -2px -2px 0px #00e5ff; transform: skewX(0deg); }
    20% { text-shadow: 2px 2px 0px #00ccff, -2px -2px 0px #00e5ff; transform: skewX(0deg); }
    21% { text-shadow: -2px 2px 0px #00ccff, 2px -2px 0px #00e5ff; transform: skewX(-10deg); }
    22% { text-shadow: 2px 2px 0px #00ccff, -2px -2px 0px #00e5ff; transform: skewX(0deg); }
    100% { text-shadow: 2px 2px 0px #00ccff, -2px -2px 0px #00e5ff; transform: skewX(0deg); }
}

.tap-to-start {
    font-size: 1.5rem;
    opacity: 0.8;
    animation: pulse 2s infinite;
}

/* Main Screen */
#main-screen {
    padding: 20px;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    height: 70px;
    padding: 0 40px 15px 40px;
    position: relative;
}

/* Search Box */
.search-container {
    flex: 0 1 300px; /* Start smaller */
    max-width: 400px;
    margin: 0 20px;
    height: 44px;
    transform: skewX(var(--skew-angle));
    background: var(--card-bg);
    border-bottom: 2px solid transparent;
    transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.search-container:focus-within {
    flex: 0 1 500px; /* Expand on focus */
    max-width: 600px;
    background: var(--card-hover);
    border-bottom-color: var(--secondary-color);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
}

.search-box {
    display: flex;
    align-items: center;
    padding: 0 15px;
    height: 100%;
    transform: skewX(15deg);
}

.search-box .material-icons {
    color: var(--secondary-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

.search-box input {
    background: transparent;
    border: none;
    color: white;
    font-family: var(--font-main);
    font-size: 1rem;
    width: 100%;
    outline: none;
}

.search-box input::placeholder {
    /* color: rgba(255, 255, 255, 0.3); */
    transition: opacity 0.3s ease;
}

/* .search-box input:focus::placeholder {
    /* opacity: 0.1; 
} */

/* User Info - Parallelogram style */
.user-info {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    padding: 10px 30px;
    transform: skewX(var(--skew-angle));
    border-left: 4px solid var(--secondary-color);
}

.user-info > * {
    transform: skewX(15deg); /* Counter skew */
}

.avatar {
    width: 40px;
    height: 40px;
    background: #333;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.username {
    font-weight: bold;
    font-size: 1.2rem;
}

.rks {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.top-right {
    transform: skewX(var(--skew-angle));
    background: var(--card-bg);
    padding: 0 30px;
    height: 44px;
    display: flex;
    align-items: center;
    border-right: 4px solid var(--accent-color);
}

.currency {
    transform: skewX(15deg);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Content Container */
.content-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Version Selector (Left Side) */
.version-selector {
    width: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 40px;
    gap: 20px;
    z-index: 10;
    flex-shrink: 0;
}

.major-version-btn {
    background: linear-gradient(90deg, rgba(0,0,0,0.5), transparent);
    color: #aaa;
    padding: 20px 40px;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    transform: skewX(var(--skew-angle));
    border-left: 5px solid transparent;
    text-align: left;
    position: relative;
    left: -20px; /* Pull slightly left */
}

.major-version-btn span {
    display: block;
    transform: skewX(15deg);
}

.major-version-btn:hover, .major-version-btn.active {
    color: var(--text-color);
    border-left-color: var(--secondary-color);
    background: linear-gradient(90deg, rgba(0, 229, 255, 0.2), transparent);
    padding-left: 60px; /* Slide out effect */
}

.major-version-btn.active {
    font-size: 2.5rem;
}

/* Version List (Middle) */
.version-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    /* Match the timing of the panel slide for sync movement */
    transition: flex-basis 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    /* Hide scrollbar */
    scrollbar-width: none; 
    -ms-overflow-style: none;
    z-index: 5; /* Ensure it stays above background */
    position: relative;
}

.version-list-container::-webkit-scrollbar { 
    display: none; 
}

/* When panel is open, shrink list on desktop
.content-container.panel-open .version-list-container {
    /* Removed shrinking 
} */

.version-card {
    background: var(--card-bg);
    padding: 20px 40px;
    transform: skewX(var(--skew-angle));
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border-right: 4px solid transparent;
    margin-left: 20px; /* Offset for skew */
    margin-right: 20px;
}

.version-card:hover, .version-card.active {
    background: var(--card-hover);
    transform: skewX(var(--skew-angle)) translateX(10px);
    border-right-color: var(--secondary-color);
}

.version-card.active {
    background: rgba(0, 229, 255, 0.15);
    border-right-color: var(--secondary-color);
}

.version-card.disabled {
    opacity: 0.6;
}

.version-card.disabled .version-number {
    color: #666;
}

.version-content {
    transform: skewX(15deg);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 5px;
}

.version-number {
    font-size: 1.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}

.version-tag-icon {
    font-size: 1.4rem;
}

.version-tag-icon.content-tag {
    color: #ffcc00; /* Yellow */
}

.version-tag-icon.recent-tag {
    color: #00ff88; /* Green */
}

.april-fools-warning {
    color: #ffcc00;
    font-weight: bold;
    margin-bottom: 15px;
    padding: 10px;
    border: 1px dashed #ffcc00;
    background: rgba(255, 204, 0, 0.1);
}

.april-fools-warning .material-icons {
    vertical-align:bottom;
    font-size: 1.5em;
    margin-right: 8px;
}

.about-container {
    padding: 20px;
    animation: fadeIn 0.5s ease-out;
}

.about-container h2 {
    font-size: 2.5rem;
    margin-top: 1rem;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--secondary-color);
    display: inline-block;
}

.about-text {
    line-height: 1.8;
    font-size: 1.1rem;
    color: #eee;
}

.about-text p {
    margin-bottom: 15px;
}

/* Loading & Error States */
.loading-container, .error-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    width: 100%;
    gap: 20px;
    animation: fadeIn 0.3s ease-out;
}

.phigros-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-text {
    font-size: 1.2rem;
    letter-spacing: 4px;
    color: var(--secondary-color);
    text-transform: uppercase;
}

.error-container {
    color: var(--accent-color);
}

.error-container .material-icons {
    font-size: 4rem;
}

.error-text {
    font-size: 1.5rem;
    font-weight: bold;
}

.error-subtext {
    color: #888;
    font-size: 0.9rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.version-date {
    font-size: 0.9rem;
    color: #ccc;
}

.changelog-preview {
    font-size: 0.9rem;
    color: #ddd;
    white-space: normal; /* Allow wrapping for preview */
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Detail Panel (Right Side) */
.detail-panel {
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    width: 70%; /* Increased width */
    /* Remove background and clip-path, use pseudo-element for shape */
    background: transparent;
    border-left: none;
    transform: translateX(100%); /* Hidden by default */
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    z-index: 20;
    display: flex;
    flex-direction: column;
    padding-left: 0; /* Reset padding */
    pointer-events: none; /* Let clicks pass through transparent areas */
}

.detail-panel > * {
    pointer-events: auto; /* Re-enable clicks for content */
}

.detail-panel::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0; /* Start from left edge of container */
    right: -100%; /* Extend far to the right */
    background: rgba(20, 20, 20, 0.95);
    transform: skewX(var(--skew-angle));
    transform-origin: bottom left;
    border-left: 2px solid var(--secondary-color);
    z-index: -1;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

.content-container.panel-open .detail-panel {
    transform: translateX(0);
}

.detail-content-wrapper {
    padding: 0; /* Reset padding, handled by spacer and inner */
    height: 100%;
    overflow-y: auto;
    /* Scrollbar styling */
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) transparent;
    position: relative;
}

.changelog-section {
    margin-bottom: 40px;
}

.changelog-section h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

/* Removed slant-spacer, using padding instead */
.detail-inner {
    padding: 40px;
    /* Calculate padding to clear the slant. 
       The slant width is height * tan(15deg). tan(15deg) is approx 0.268.
       We use vh to ensure it scales with the panel height.
    */
    padding-left: calc(26.8vh); 
    padding-right: 60px;
    max-width: 1200px;
}

#detail-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
    border-bottom: 2px solid var(--secondary-color);
    display: inline-block;
    padding-right: 20px;
}

#detail-meta {
    color: #aaa;
    margin-bottom: 30px;
    font-size: 1rem;
}
.detail-changelog ul li {
    list-style: none;
    margin-bottom: 10px;
    line-height: 1.6;
}

.download-section h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.download-group {
    margin-bottom: 30px;
}

.source-note {
    font-size: 0.85rem;
    color: #888;
    margin-top: -10px;
    margin-bottom: 15px;
    /* font-style: italic; */
}

.download-group h4 {
    color: #aaa;
    margin-bottom: 15px;
    font-size: 1.1rem;
    line-height: 1.2;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 5px;
    display: inline-block;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.download-message {
    margin-top: 20px;
    color: #ff5555;
    /* font-style: italic; */
}

/* Phigros Style Buttons */
.phigros-btn {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 15px 20px;
    font-family: var(--font-main);
    font-weight: bold;
    line-height: 1.2;
    cursor: pointer;
    transform: skewX(var(--skew-angle));
    transition: all 0.2s;
    border-left: 3px solid var(--secondary-color);
    text-align: left;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.phigros-btn.btn-help {
    /* border: 1px solid #ffcc00; */
    border-left: 3px solid #ffcc00;
    color: #ffcc00;
    background-color: rgba(255, 204, 0, 0.1);
}
.phigros-btn.btn-help:hover {
    /* background: #ffcc00; */
    background: #ffcc00 !important;
    color: black;
    border-left-color: #ffcc00;
    box-shadow: 0 0 20px rgba(255, 204, 0, 0.4);
}

.phigros-btn span {
    display: block;
    transform: skewX(15deg); /* Unskew text */
}

.phigros-btn .material-icons,
.phigros-btn .icon-wrapper {
    transform: skewX(15deg);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.phigros-btn .icon {
    width: 1.2rem;
    height: 1.2rem;
    fill: currentColor;
}

.phigros-btn:hover {
    /* background: #00ff88; /* Green highlight */
    background: #fff;
    color: black;
    transform: skewX(var(--skew-angle)) translateX(5px);
    /* box-shadow: 0 0 15px rgba(0, 255, 136, 0.4); */
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.4);
    /* border-left-color: #00ff88;*/
    border-left-color: #fff;
}

/* rewrite normal btns to use phigros style
   basically phigros button but no icon */


.close-btn-mobile {
    display: none;
}

.close-btn-desktop {
    position: absolute;
    top: 0;
    right: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    width: 60px;
    height: 40px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s;
    transform: skewX(var(--skew-angle));
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
    z-index: 30;
}

.close-btn-desktop:hover {
    background: #ff0055;
}

.close-btn-desktop span {
    transform: skewX(15deg);
}

/* Responsive / Mobile */
@media (max-width: 768px) {
    .top-bar {
        padding: 0 15px 10px 15px;
        gap: 10px;
    }

    .notification-container {
        right: 10px;
        left: 10px;
        top: 80px;
    }

    .notification {
        min-width: 0;
        max-width: none;
        width: auto;
    }

    .user-info {
        padding: 5px 15px;
        flex-shrink: 1;
        min-width: 0;
    }

    .username {
        font-size: 1rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .search-container {
        margin: 0;
        flex: 1;
        max-width: 150px; /* Small by default on mobile */
        transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    .top-bar:focus-within .user-info {
        display: none;
    }

    .top-bar:focus-within .search-container {
        max-width: none;
        flex: 1;
    }

    .content-container {
        flex-direction: column;
    }
    
    .version-selector {
        width: 100%;
        flex-direction: row;
        padding: 10px;
        overflow-x: auto;
        height: auto;
        flex-shrink: 0;
    }
    
    .major-version-btn {
        padding: 10px 20px;
        font-size: 1.2rem;
        left: 0;
    }
    
    .version-list-container {
        width: 100% !important; /* Override shrink */
        flex: 1;
    }
    
    .top-right {
        display: none;
    }

    .detail-panel {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        transform: translateY(100%); /* Slide up */
        border-left: none;
        padding-left: 0;
        background: transparent; /* Reset */
        z-index: 100;
        pointer-events: auto;
    }

    .detail-panel::before {
        /* Reset skew for mobile full screen */
        transform: none;
        left: 0;
        right: 0;
        width: 100%;
        border-left: none;
        background: rgba(0, 0, 0, 0.95);
    }
    
    .content-container.panel-open .detail-panel {
        transform: translateY(0);
    }
    
    .detail-content-wrapper {
        padding: 20px;
        padding-top: 60px; /* Space for close button */
        padding-left: 20px; /* Reset padding */
    }
    .detail-inner {
        padding: 20px;
        padding-left: 20px; /* Reset padding */
    }

    .detail-inner .close-btn-desktop {
        display: none;
    }

    .slant-spacer {
        display: none; /* No slant on mobile */
    }
    
    .close-btn-mobile {
        display: block;
        position: absolute;
        top: 20px;
        right: 20px;
        background: transparent;
        border: none;
        color: white;
        font-size: 2rem;
        cursor: pointer;
    }

    .bottom-bar {
        padding: 0 2px !important;
        gap: 2px;
    }

    .current-path {
        font-size: 0.7rem;
        letter-spacing: 0;
        flex: 1;
        margin: 0;
        min-width: 0;
        white-space: nowrap;
        overflow: visible;
    }

    .path-prefix {
        display: none;
    }

    .nav-btn {
        width: 40px;
        flex-shrink: 0;
    }

    .bottom-right-btns {
        gap: 2px;
        flex-shrink: 0;
    }

    .nav-btn {
        width: 45px;
    }
}
.bottom-bar {
    height: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
    margin-bottom: -19px;
}

.bottom-right-btns {
    display: flex;
    gap: 3px;
}

.nav-btn {
    background: var(--card-bg);
    border: none;
    color: white;
    width: 60px;
    height: 40px;
    transform: skewX(var(--skew-angle));
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.3s;
}

.nav-btn:hover {
    background: var(--secondary-color);
    color: black;
}

#back-btn {
    border-left: 4px solid var(--accent-color);
}

#back-btn:hover {
    background: var(--accent-color) !important;
}

#info-btn {
    border-right: 4px solid var(--secondary-color);
}

.nav-btn.loading span {
    display: none;
}

.nav-btn.loading::after {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
    box-shadow: 12px 0 0 0 currentColor, 24px 0 0 0 currentColor;
    animation: dots-fade 1.5s infinite linear;
    transform: skewX(15deg) translateX(-12px);
    display: block;
}

@keyframes dots-fade {
    0% { background-color: currentColor; box-shadow: 12px 0 0 0 rgba(255,255,255,0.2), 24px 0 0 0 rgba(255,255,255,0.2); }
    33% { background-color: rgba(255,255,255,0.2); box-shadow: 12px 0 0 0 currentColor, 24px 0 0 0 rgba(255,255,255,0.2); }
    66% { background-color: rgba(255,255,255,0.2); box-shadow: 12px 0 0 0 rgba(255,255,255,0.2), 24px 0 0 0 currentColor; }
    100% { background-color: currentColor; box-shadow: 12px 0 0 0 rgba(255,255,255,0.2), 24px 0 0 0 rgba(255,255,255,0.2); }
}

.nav-btn span {
    transform: skewX(15deg);
}

.current-path {
    font-size: 1.2rem;
    letter-spacing: 2px;
    opacity: 0.7;
    text-align: center;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

@keyframes slideInRight {
    from { transform: translateX(100px) skewX(var(--skew-angle)); opacity: 0; }
    to { transform: translateX(0) skewX(var(--skew-angle)); opacity: 1; }
}

.version-card {
    animation: slideInRight 0.5s ease-out forwards;
    opacity: 0; /* Start hidden for animation */
}

/* Stagger animations */
.version-card:nth-child(1) { animation-delay: 0.1s; }
.version-card:nth-child(2) { animation-delay: 0.2s; }
.version-card:nth-child(3) { animation-delay: 0.3s; }
.version-card:nth-child(4) { animation-delay: 0.4s; }
.version-card:nth-child(5) { animation-delay: 0.5s; }

/* Modal/Details View (Optional, if we want to expand details) */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    display: none;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.announcement-modal-content {
    background: #1a1a1a;
    width: 90%;
    max-width: 500px;
    padding: 30px;
    border: 1px solid var(--secondary-color);
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.2);
    position: relative;
    transform: skewX(var(--skew-angle));
}

.announcement-modal-content > * {
    transform: skewX(15deg);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
}

.modal-header .material-icons {
    font-size: 2rem;
    color: var(--secondary-color);
}

.modal-header h2 {
    font-size: 1.5rem;
    margin: 0;
}

.modal-body {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #eee;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
}

/* Notification Container */
.notification-container {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1500;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.notification {
    background: rgba(20, 20, 20, 0.9);
    color: white;
    padding: 15px 25px;
    transform: skewX(var(--skew-angle));
    border-left: 4px solid var(--secondary-color);
    box-shadow: -5px 5px 15px rgba(0,0,0,0.3);
    pointer-events: auto;
    animation: slideInRight 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    min-width: 250px;
    max-width: 400px;
}

.notification-content {
    transform: skewX(15deg);
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification.warning {
    border-left-color: #ffcc00;
}

.notification.warning .material-icons {
    color: #ffcc00;
}

.notification.info .material-icons {
    color: var(--secondary-color);
}

.notification.fade-out {
    animation: fadeOut 0.5s forwards;
}

.modal-content {
    background: #1a1a1a;
    width: 80%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    padding: 40px;
    border: 1px solid var(--secondary-color);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
    position: relative;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    font-size: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .content-container {
        flex-direction: column;
    }
    .version-selector {
        width: 100%;
        flex-direction: row;
        padding: 10px;
        overflow-x: auto;
        height: auto;
    }
    .major-version-btn {
        padding: 10px 20px;
        font-size: 1.2rem;
        left: 0;
    }
    .major-version-btn.active {
        font-size: 1.4rem;
        padding-left: 20px;
    }
    .version-list-container {
        padding: 10px;
    }
    .version-card {
        margin: 5px 10px;
        padding: 15px;
    }
}

/* Shadow mask for version list when panel is open */
.content-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    z-index: 15;
    pointer-events: none;
    transition: background 0.5s ease;
}

.content-container.panel-open::before {
    /* background: rgba(0, 0, 0, 0.6);     */
    background: rgba(13, 13, 13, 0.81);
    pointer-events: auto;
}

.saturn-os {
    color: #999;
    font-size: 0.8rem;
    margin-top: 0px;
    position: relative;
    height: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.saturn-text-1, .saturn-text-2 {
    position: absolute;
    white-space: nowrap;
}

.saturn-text-1 {
    animation: saturnStep1 5.5s forwards;
}

.saturn-text-2 {
    opacity: 0;
    animation: saturnStep2 5.5s forwards;
}

.saturn-os:hover .saturn-text-1 {
    animation: none;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease;
}

.saturn-os:hover .saturn-text-2 {
    animation: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.saturn-os span {
    background: #999;
    padding: 1px 6px;
    border-radius: 3px;
    color: #000;
    font-weight: bold;
    font-size: 0.7rem;
    letter-spacing: 0px;
}

@keyframes saturnStep1 {
    0%, 50% { opacity: 1; visibility: visible; }
    60%, 100% { opacity: 0; visibility: hidden; }
}

@keyframes saturnStep2 {
    0%, 50% { opacity: 0; visibility: hidden; }
    60%, 90% { opacity: 1; visibility: visible; }
    100% { opacity: 0; visibility: hidden; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; visibility: hidden; }
}

/* Start Screen Footer */
.start-footer {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 10;
}

/* Language Selection View */
.language-container {
    padding: 20px;
    animation: fadeIn 0.5s ease-out;
}

.language-container h2 {
    font-size: 2.5rem;
    margin-top: 1rem;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--secondary-color);
    display: inline-block;
}

.language-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.lang-select-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: flex-start;
    padding: 10px 15px;
    text-align: left;
    position: relative;
    transition: all 0.3s ease;
}

.lang-icon {
    font-size: 20px;
    flex-shrink: 0;
    /* color: #aaa; */
}

.lang-select-btn.active {
    border-left: 4px solid #00ff88 !important; /* 绿色斜边 */
    background: rgba(0, 77, 41, 0.4);
}
.lang-select-btn.active:hover {
    background: #00ff88 !important;
    color: black;
}

.lang-select-btn.active .lang-icon {
    color: var(--accent-color)
}

[dir="rtl"] .lang-select-btn {
    text-align: right;
    flex-direction: row-reverse;
}

[dir="rtl"] .lang-select-btn.active {
    border-left: none !important;
    border-right: 4px solid #00ff88 !important;
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}

[dir="rtl"] .top-bar,
[dir="rtl"] .bottom-bar,
[dir="rtl"] .version-header {
    flex-direction: row-reverse;
}

[dir="rtl"] .user-info {
    border-left: none;
    border-right: 4px solid var(--secondary-color);
    transform: skewX(15deg);
}

[dir="rtl"] .user-info > * {
    transform: skewX(-15deg);
}

[dir="rtl"] .top-right {
    border-right: none;
    border-left: 4px solid var(--accent-color);
    transform: skewX(15deg);
}

[dir="rtl"] .top-right > * {
    transform: skewX(-15deg);
}

[dir="rtl"] .major-version-btn {
    border-left: none;
    border-right: 5px solid transparent;
    text-align: right;
    left: auto;
    right: -20px;
    transform: skewX(15deg);
}

[dir="rtl"] .major-version-btn span {
    transform: skewX(-15deg);
}

[dir="rtl"] .major-version-btn:hover, 
[dir="rtl"] .major-version-btn.active {
    border-right-color: var(--secondary-color);
    padding-left: 40px;
    padding-right: 60px;
}

[dir="rtl"] .version-card {
    transform: skewX(15deg);
    border-right: none;
    border-left: 4px solid transparent;
}

[dir="rtl"] .version-card:hover, 
[dir="rtl"] .version-card.active {
    transform: skewX(15deg) translateX(-10px);
    border-left-color: var(--secondary-color);
}

[dir="rtl"] .version-content {
    transform: skewX(-15deg);
}

[dir="rtl"] .phigros-btn {
    transform: skewX(15deg);
    border-left: none;
    border-right: 3px solid var(--secondary-color);
    text-align: right;
}

[dir="rtl"] .phigros-btn span,
[dir="rtl"] .phigros-btn .material-icons {
    transform: skewX(-15deg);
}

[dir="rtl"] .detail-panel {
    right: auto;
    left: 0;
    transform: translateX(-100%);
}

[dir="rtl"] .content-container.panel-open .detail-panel {
    transform: translateX(0);
}

[dir="rtl"] .detail-panel::before {
    left: auto;
    right: 0;
    left: -100%;
    transform: skewX(15deg);
    border-left: none;
    border-right: 2px solid var(--secondary-color);
}

[dir="rtl"] .detail-inner {
    padding-left: 60px;
    padding-right: calc(26.8vh);
}

[dir="rtl"] .close-btn-desktop {
    right: auto;
    left: 40px;
    transform: skewX(15deg);
}

[dir="rtl"] .close-btn-desktop span {
    transform: skewX(-15deg);
}