@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@400;700;900&display=swap');

:root {
    --font-primary: 'Unbounded', sans-serif;
    --bg-color-dark: #001f3f;
    --bg-color-darker: #001529;
    --text-color-light: #ffffff;
    --text-color-muted: rgba(255, 255, 255, 0.6);

    --accent-color-primary: #08346a;
    --accent-color-secondary: #154472;
    --accent-color-deep-blue: #12325a;

    --surface-bg-alpha-05: rgba(255, 255, 255, 0.05);
    --surface-bg-alpha-10: rgba(255, 255, 255, 0.1);
    --surface-bg-alpha-15: rgba(255, 255, 255, 0.15);
    --surface-bg-alpha-20: rgba(255, 255, 255, 0.2);
    --acrylic-bg-color-dark-controls: rgba(10, 41, 73, 0.75);
    --acrylic-bg-color-darker-controls: rgba(0, 20, 40, 0.8);
    --acrylic-bg-color-widget: rgba(255, 255, 255, 0.07);
    --acrylic-bg-color-button: rgba(255, 255, 255, 0.08);
    --acrylic-bg-color-search: rgba(255, 255, 255, 0.03);
    --acrylic-bg-color-category: rgba(255,255,255,0.04);


    --border-color-alpha-10: rgba(255, 255, 255, 0.1);
    --border-color-alpha-20: rgba(255, 255, 255, 0.2);
    --border-color-accent: var(--accent-color-secondary);
    --border-color-accent-strong: var(--accent-color-primary);

    --shadow-color-subtle: rgba(0, 0, 0, 0.1);
    --shadow-color-medium: rgba(0, 0, 0, 0.2);
    --shadow-color-strong: rgba(0, 0, 0, 0.3);
    --shadow-color-interactive: rgba(77, 136, 194, 0.25);
    --shadow-color-interactive-deep: rgba(51, 119, 204, 0.35);


    --border-radius-standard: 20px;
    --border-radius-large: 30px;
    --border-radius-xlarge: 35px;
    --border-radius-circular: 50%;

    --transition-duration-fast: 0.2s;
    --transition-duration-normal: 0.3s;
    --transition-duration-slow: 0.5s;
    --transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-timing-function-smooth: ease-in-out;

    --blur-soft: 5px;
    --blur-medium: 10px;
    --blur-strong: 15px;
    --blur-intense: 25px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    min-height: 100vh;
    background-image: linear-gradient(180deg, var(--bg-color-dark) 0%, var(--bg-color-darker) 100%);
    color: var(--text-color-light);
    opacity: 0;
    animation: fadeIn var(--transition-duration-slow) var(--transition-timing-function-smooth) forwards;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow-y: overlay;
    padding-top: 2rem;
}

body::-webkit-scrollbar {
    width: 12px;
}

body::-webkit-scrollbar-track {
    background: transparent;
}

body::-webkit-scrollbar-thumb {
    background: var(--surface-bg-alpha-15);
    border-radius: 10px;
    border: 2px solid transparent;
    background-clip: padding-box;
    transition: background var(--transition-duration-normal) ease;
}

body::-webkit-scrollbar-thumb:hover {
    background: var(--surface-bg-alpha-20);
}

@keyframes fadeIn { to { opacity: 1; } }
/* Removed fadeSlideUp animation */
/* @keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(25px); }
    to { opacity: 1; transform: translateY(0); }
} */
@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 5px transparent; }
    50% { transform: scale(1.03); box-shadow: 0 0 15px var(--accent-color-secondary); }
}

.content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
    width: 100%;
    will-change: transform;
    min-height: calc(100vh - 4rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.content > h1 {
    margin: 0;
    font-size: clamp(3rem, 8vw, 5.2rem);
    font-weight: 900;
    color: var(--text-color-light);
    text-shadow:
        1px 1px 0px var(--surface-bg-alpha-20),
        2px 2px 0px var(--surface-bg-alpha-15),
        3px 3px 0px var(--surface-bg-alpha-10),
        4px 4px 0px var(--surface-bg-alpha-05),
        0 0 30px rgba(var(--accent-color-primary), 0.2);
    transition: transform var(--transition-duration-fast) var(--transition-timing-function-smooth), text-shadow var(--transition-duration-normal) var(--transition-timing-function-smooth);
}
.content > h1:hover {
    transform: scale(1.05) translateY(-2px);
    text-shadow:
        1px 1px 0px var(--surface-bg-alpha-20),
        2px 2px 0px var(--surface-bg-alpha-15),
        3px 3px 0px var(--surface-bg-alpha-10),
        4px 4px 0px var(--surface-bg-alpha-05),
        5px 5px 15px rgba(0,0,0,0.1),
        0 0 40px var(--accent-color-primary);
}

.controls {
    margin: 0 auto;
    max-width: 800px;
    padding: 1.5rem;
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    background: linear-gradient(145deg, var(--acrylic-bg-color-dark-controls), var(--acrylic-bg-color-darker-controls));
    backdrop-filter: blur(var(--blur-intense));
    -webkit-backdrop-filter: blur(var(--blur-intense));
    border-radius: var(--border-radius-large);
    box-shadow: 0 12px 40px var(--shadow-color-strong), 0 0 0 1px var(--border-color-alpha-10);
    transition: all var(--transition-duration-normal) var(--transition-timing-function);
    border: 1px solid var(--border-color-alpha-10);
    width: calc(100% - 4rem);
}

.search-bar {
    width: 100%;
    padding: 1.1rem 1.6rem;
    font-size: 1.1rem;
    background: var(--acrylic-bg-color-search);
    backdrop-filter: blur(var(--blur-medium));
    -webkit-backdrop-filter: blur(var(--blur-medium));
    border: 1px solid var(--border-color-alpha-10);
    border-radius: 25px;
    color: var(--text-color-light);
    margin-bottom: 1.5rem;
    font-family: var(--font-primary);
    transition: all var(--transition-duration-normal) var(--transition-timing-function-smooth);
    will-change: transform, background-color, border-color, box-shadow;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}
.search-bar:focus {
    outline: none;
    border-color: var(--accent-color-primary);
    background: var(--surface-bg-alpha-10);
    box-shadow: 0 0 15px var(--accent-color-primary), inset 0 1px 2px rgba(0,0,0,0.1);
}
.search-bar::placeholder {
    color: var(--text-color-muted);
    opacity: 0.8;
}

.categories {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.category {
    padding: 0.7rem 1.4rem;
    background: var(--acrylic-bg-color-category);
    backdrop-filter: blur(var(--blur-medium));
    -webkit-backdrop-filter: blur(var(--blur-medium));
    border: 1px solid var(--border-color-alpha-10);
    border-radius: var(--border-radius-standard);
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function-smooth);
    font-size: 0.9rem;
    font-weight: 500;
    will-change: transform, background-color, border-color, box-shadow;
    position: relative;
    overflow: hidden;
    color: var(--text-color-muted);
    z-index: 0;
}
.category::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--border-radius-standard);
    background: linear-gradient(145deg, var(--accent-color-secondary), var(--accent-color-primary));
    opacity: 0;
    transition: opacity var(--transition-duration-normal) ease;
    z-index: -1;
}
.category span {
    position: relative;
    z-index: 1;
}
.category:hover,
.category.active {
    border-color: var(--border-color-accent);
    color: var(--text-color-light);
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 8px 20px var(--shadow-color-interactive);
}
.category:hover::before,
.category.active::before {
    opacity: 1;
}
.category.active {
    box-shadow: 0 5px 15px var(--shadow-color-interactive-deep);
}

.grid {
    margin-top: 8rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 1rem;
    width: 100%;
    perspective: 1000px;
}

.widget {
    background: var(--acrylic-bg-color-widget);
    border: 1px solid var(--border-color-alpha-10);
    border-radius: var(--border-radius-large);
    padding: 2rem;
    cursor: pointer;
    transition: all var(--transition-duration-normal) var(--transition-timing-function);
    aspect-ratio: 16/9;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(var(--blur-medium));
    -webkit-backdrop-filter: blur(var(--blur-medium));
    /* Removed animation */
    /* opacity: 0; */ /* Keep opacity at 1 by default without animation */
    opacity: 1;
    /* Removed animation-delay */
    /* animation-delay: calc(var(--widget-index, 0) * 0.1s); */
    will-change: transform, opacity;
    transform-style: preserve-3d;
}
.widget::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-duration-normal) ease;
    pointer-events: none;
}
.widget:hover::before {
    opacity: 1;
}
.widget a {
    color: var(--text-color-light);
    text-decoration: none;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    font-weight: bold;
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    text-align: center;
    z-index: 1;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px var(--shadow-color-medium);
    transition: all var(--transition-duration-normal) ease;
}
.widget:hover {
    transform: translateY(-5px) scale(1.03);
    background: var(--surface-bg-alpha-10);
    border-color: var(--border-color-accent);
    box-shadow: 0 10px 35px var(--shadow-color-interactive),
                inset 0 0 20px rgba(var(--accent-color-secondary-rgb, 77, 136, 194), 0.05);
}
.widget:hover a {
    transform: scale(1.02);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}
.widget:active {
    transform: translateY(-2px) scale(0.98);
}

.nav-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 4rem 0;
}

.button {
    background: linear-gradient(145deg, var(--acrylic-bg-color-button), var(--surface-bg-alpha-05));
    backdrop-filter: blur(var(--blur-medium));
    -webkit-backdrop-filter: blur(var(--blur-medium));
    color: var(--text-color-light);
    border: 1px solid var(--border-color-alpha-10);
    border-radius: var(--border-radius-xlarge);
    padding: 1.3rem 3rem;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function-smooth);
    text-decoration: none;
    will-change: transform, background, border-color, box-shadow, letter-spacing;
    box-shadow: 0 5px 15px var(--shadow-color-subtle), inset 0 1px 2px var(--surface-bg-alpha-05);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.5px;
}
.button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--accent-color-secondary) 0%, transparent 70%);
    opacity: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-duration-slow) var(--transition-timing-function), opacity var(--transition-duration-slow) var(--transition-timing-function);
    pointer-events: none;
    z-index: 0;
}
.button:hover::before {
    opacity: 0.3;
    width: 300%;
    height: 300%;
    transform: translate(-50%, -50%) scale(1);
}
.button:hover {
    background: linear-gradient(145deg, var(--surface-bg-alpha-15), var(--surface-bg-alpha-10));
    border-color: var(--border-color-accent-strong);
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 10px 25px var(--shadow-color-interactive-deep),
                inset 0 0 10px var(--surface-bg-alpha-05);
    letter-spacing: 0.8px;
}
.button:active {
    transform: translateY(-1px) scale(1);
    box-shadow: 0 4px 12px var(--shadow-color-interactive),
                inset 0 1px 5px var(--surface-bg-alpha-10);
    letter-spacing: 0.5px;
}
.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 10;
    padding: 1rem 2rem;
}

.announcement-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 20, 40, 0.5);
    backdrop-filter: blur(var(--blur-strong));
    -webkit-backdrop-filter: blur(var(--blur-strong));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-duration-normal) var(--transition-timing-function-smooth), visibility 0s var(--transition-duration-normal) var(--transition-timing-function-smooth);
    padding: 1rem;
}
.announcement-popup.visible {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}
.announcement-content {
    background: linear-gradient(150deg, rgba(0, 31, 63, 0.65) 0%, rgba(var(--accent-color-deep-blue-rgb, 44, 93, 153), 0.55) 180%);
    backdrop-filter: blur(var(--blur-intense));
    -webkit-backdrop-filter: blur(var(--blur-intense));
    border: 1px solid var(--border-color-alpha-20);
    border-radius: var(--border-radius-large);
    padding: 3rem 2.5rem;
    max-width: 550px;
    width: 100%;
    text-align: center;
    position: relative;
    transform: translateY(30px) scale(0.9);
    transition: transform 0.4s var(--transition-timing-function), opacity 0.4s var(--transition-timing-function);
    box-shadow: 0 25px 50px var(--shadow-color-strong),
                inset 0 0 0 1px var(--border-color-alpha-10);
    opacity: 0;
}
.announcement-popup.visible .announcement-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}
.announcement-content::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--border-radius-large);
    padding: 2px;
    background: linear-gradient(150deg, var(--accent-color-primary), var(--accent-color-secondary), var(--accent-color-primary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: -1;
}
.announcement-content h2 {
    font-size: clamp(2rem, 4.5vw, 2.5rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(60deg, var(--text-color-light), var(--accent-color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    letter-spacing: -0.03em;
}
.announcement-content p {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    line-height: 1.7;
    margin-bottom: 2.8rem;
    color: rgba(255, 255, 255, 0.95);
}

.close-announcement {
    background: linear-gradient(145deg, rgba(var(--accent-color-primary-rgb,51,119,204), 0.6), rgba(var(--accent-color-deep-blue-rgb,44,93,153), 0.5));
    backdrop-filter: blur(var(--blur-medium));
    -webkit-backdrop-filter: blur(var(--blur-medium));
    color: var(--text-color-light);
    border: 1px solid rgba(var(--accent-color-primary-rgb,51,119,204), 0.4);
    border-radius: 25px;
    padding: 1.3rem 3.2rem;
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-duration-fast) var(--transition-timing-function-smooth);
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 3px var(--shadow-color-medium);
    box-shadow: 0 5px 15px rgba(var(--accent-color-primary-rgb,51,119,204), 0.15);
}
.close-announcement::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, var(--accent-color-secondary) 0%, transparent 70%);
    opacity: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-duration-slow) var(--transition-timing-function), opacity var(--transition-duration-slow) var(--transition-timing-function);
    pointer-events: none;
}
.close-announcement:hover::before {
    opacity: 0.4;
    width: 300%;
    height: 300%;
    transform: translate(-50%, -50%) scale(1);
}
.close-announcement:hover {
    background: linear-gradient(145deg, rgba(var(--accent-color-secondary-rgb,77,136,194), 0.7), rgba(var(--accent-color-primary-rgb,51,119,204), 0.6));
    border-color: var(--text-color-light);
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 10px 25px var(--shadow-color-interactive-deep);
}
.close-announcement:active {
    transform: translateY(0) scale(1);
    box-shadow: 0 4px 10px var(--shadow-color-interactive);
}

@media (max-width: 1200px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    body { padding-top: 1rem; }
    .content { padding: 1rem; min-height: calc(100vh - 2rem); }
    .content > h1 { margin-top: 8vh; font-size: clamp(2.2rem, 7vw, 2.8rem); }
    .controls {
        padding: 1.2rem; top: 1rem; width: calc(100% - 2rem);
        border-radius: var(--border-radius-standard);
        backdrop-filter: blur(var(--blur-strong));
        -webkit-backdrop-filter: blur(var(--blur-strong));
    }
    .grid { margin-top: calc(7rem + 2rem); gap: 1rem; padding: 0.5rem; grid-template-columns: 1fr; }
    .nav-buttons { margin: 2.5rem 0; gap: 1.2rem; flex-direction: column; width: 100%; padding: 0 1rem; }
    .button { width: 100%; padding: 1.3rem; font-size: 1.1rem; }
    .widget {
        aspect-ratio: 16/10; padding: 1.5rem; border-radius: 25px;
        backdrop-filter: blur(var(--blur-medium));
        -webkit-backdrop-filter: blur(var(--blur-medium));
    }
    .widget a { font-size: clamp(1.1rem, 3vw, 1.2rem); padding: 0.8rem; }
    .categories { gap: 0.8rem; margin-bottom: 1.2rem; }
    .category {
        padding: 0.6rem 1.1rem; font-size: 0.85rem; flex-basis: calc(33.333% - 0.8rem);
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .search-bar {
        padding: 1rem 1.3rem; font-size: 1rem; margin-bottom: 1.2rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .announcement-content {
        padding: 2.5rem 1.5rem; margin: 1rem; border-radius: var(--border-radius-standard);
        backdrop-filter: blur(var(--blur-strong));
        -webkit-backdrop-filter: blur(var(--blur-strong));
    }
    .announcement-content h2 { font-size: clamp(1.7rem, 5vw, 2rem); }
    .announcement-content p { font-size: clamp(1rem, 4vw, 1.15rem); margin-bottom: 2.2rem; }
    .close-announcement {
        width: 100%; padding: 1.1rem; font-size: 1.1rem;
        backdrop-filter: blur(var(--blur-medium));
        -webkit-backdrop-filter: blur(var(--blur-medium));
    }
}

@media (max-width: 480px) {
    .content > h1 { font-size: clamp(1.9rem, 6vw, 2.2rem); }
    .category {
        flex-basis: calc(50% - 0.8rem); font-size: 0.8rem; padding: 0.5rem 0.9rem;
    }
    .controls { padding: 1rem; }
    .widget {
        padding: 1.2rem; border-radius: var(--border-radius-standard);
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .widget a { font-size: clamp(1rem, 3.5vw, 1.1rem); }
    .announcement-content { padding: 2rem 1rem; }
}

@media (max-width: 380px) {
    .content > h1 { font-size: clamp(1.7rem, 5.5vw, 2rem); }
    .category { padding: 0.4rem 0.8rem; font-size: 0.75rem; }
    .controls {
        padding: 0.8rem;
        backdrop-filter: blur(var(--blur-medium));
        -webkit-backdrop-filter: blur(var(--blur-medium));
    }
    .search-bar {
        padding: 0.8rem 1rem; font-size: 0.9rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .button, .close-announcement {
        padding: 1.1rem; font-size: 1rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
}

@media (max-height: 500px) and (orientation: landscape) {
    .content > h1 { margin-top: 3vh; font-size: clamp(1.8rem, 4vh, 2.2rem); }
    .nav-buttons { margin: 2rem 0; gap: 1rem; }
    .button { width: auto; padding: 1rem 1.8rem; font-size: 1rem; }
    .grid { margin-top: calc(6rem + 1rem); grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
    .widget {
        aspect-ratio: 16/7; padding: 1.2rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .widget a { font-size: clamp(1rem, 2.5vh, 1.1rem); }
    .controls {
        padding: 1rem; top: 0.8rem; width: calc(100% - 1.6rem);
        backdrop-filter: blur(var(--blur-strong));
        -webkit-backdrop-filter: blur(var(--blur-strong));
    }
    .search-bar {
        margin-bottom: 1rem; padding: 0.9rem 1.2rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
    .categories { margin-bottom: 1rem; gap: 0.8rem; }
    .category {
        padding: 0.5rem 1rem;
        backdrop-filter: blur(var(--blur-soft));
        -webkit-backdrop-filter: blur(var(--blur-soft));
    }
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}