/* ================================================
   Portal Liquid Glass Design 
   ================================================ */

:root {
    /* Custom Green Palette from Image */
    --green-1: #AFF54E;  /* Hellstes Grün */
    --green-2: #92CC41;  /* Mittleres Grün */
    --green-3: #86BD28;  /* Standard Grün */
    --green-4: #86BD28;  /* Dunkles Grün */
    --green-5: #96C11F;  /* Lebendigeres Grün */
    --green-6: #84BB38;  /* Sanfteres Grün */
    --green-7: #9DD42F;  /* Helles lebendigeres Grün */
    --green-8: #668F2E;  /* Dunkelstes Grün */
    --green-9: #587A27;  /* Sehr dunkles Grün */
    --green-10: #49662C; /* Tiefes Grün */
    --green-11: #3A521A; /* Extrem dunkles Grün */
    
    /* Obsidian Base Colors */
    --obsidian-bg: #0d1117;
    --obsidian-surface: #161b22;
    --obsidian-surface-light: #21262d;
    --obsidian-border: #30363d;
    --obsidian-text: #f0f6fc;
    --obsidian-text-muted: #8b949e;
    --obsidian-text-dim: #656d76;
    
    /* Enhanced Liquid Glass Colors */
    --glass-bg: rgba(22, 27, 34, 0.25);
    --glass-bg-medium: rgba(22, 27, 34, 0.4);
    --glass-bg-strong: rgba(13, 17, 23, 0.6);
    --glass-border: rgba(175, 245, 78, 0.12);
    --glass-border-hover: rgba(175, 245, 78, 0.18);
    --glass-border-strong: rgba(134, 189, 40, 0.3);
    
    /* Minimal Light/Shadow Effects Only */
    --hover-bg-light: rgba(255, 255, 255, 0.05);
    --hover-border-light: rgba(255, 255, 255, 0.1);
    --hover-light-effect: rgba(255, 255, 255, 0.03);
    --hover-shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.4);
    --hover-blur: blur(20px);
    
    /* Ultra Enhanced 3D Glass Card Effects */
    --card-bg: rgba(33, 38, 45, 0.2);
    --card-bg-hover: rgba(33, 38, 45, 0.4);
    --card-border: rgba(175, 245, 78, 0.25);
    --card-border-hover: rgba(175, 245, 78, 0.4);
    --card-shadow: 
        0 12px 48px rgba(0, 0, 0, 0.8),
        0 24px 96px rgba(0, 0, 0, 0.6),
        0 0 0 2px rgba(175, 245, 78, 0.15),
        0 0 20px rgba(175, 245, 78, 0.1),
        inset 0 2px 0 rgba(255, 255, 255, 0.2),
        inset 0 -2px 0 rgba(0, 0, 0, 0.4),
        inset 0 0 20px rgba(175, 245, 78, 0.05);
    --card-shadow-hover: 
        0 24px 96px rgba(0, 0, 0, 0.9),
        0 48px 192px rgba(0, 0, 0, 0.8),
        0 0 0 3px rgba(175, 245, 78, 0.25),
        0 0 40px rgba(175, 245, 78, 0.2),
        0 0 80px rgba(175, 245, 78, 0.1),
        inset 0 3px 0 rgba(255, 255, 255, 0.3),
        inset 0 -3px 0 rgba(0, 0, 0, 0.5),
        inset 0 0 30px rgba(175, 245, 78, 0.1);
    
    /* Subtle Green Gradients */
    --gradient-primary: linear-gradient(135deg, 
        #AFF54E 0%, 
        #92CC41 25%, 
        #86BD28 50%, 
        #9DD42F 75%, 
        #668F2E 100%);
    --gradient-text: linear-gradient(135deg, 
        #AFF54E 0%, 
        #92CC41 30%, 
        #86BD28 60%, 
        #9DD42F 100%);
    --gradient-card: linear-gradient(145deg, 
        rgba(175, 245, 78, 0.03) 0%, 
        rgba(134, 189, 40, 0.06) 50%, 
        rgba(102, 143, 46, 0.03) 100%);

    
    /* Animations */
    --animation-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --animation-card: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ================================================
   Base Layout
   ================================================ */

* {
    box-sizing: border-box;
}

.portal-body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--obsidian-bg);
    color: var(--obsidian-text);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

/* ================================================
   Enhanced Animated Background
   ================================================ */

.portal-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.liquid-orb {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
    filter: blur(80px);
    animation: float 12s ease-in-out infinite;
}

.orb-1 {
    width: 40vw;
    height: 40vw;
    max-width: 600px;
    max-height: 600px;
    min-width: 300px;
    min-height: 300px;
    background: radial-gradient(circle, 
        rgba(175, 245, 78, 0.3) 0%, 
        rgba(146, 204, 65, 0.2) 50%, 
        rgba(134, 189, 40, 0.1) 100%);
    top: -5%;
    left: -5%;
    animation-delay: 0s;
}

.orb-2 {
    width: 35vw;
    height: 35vw;
    max-width: 500px;
    max-height: 500px;
    min-width: 250px;
    min-height: 250px;
    background: radial-gradient(circle, 
        rgba(157, 212, 47, 0.3) 0%, 
        rgba(134, 189, 40, 0.2) 50%, 
        rgba(102, 143, 46, 0.1) 100%);
    top: 40%;
    right: -8%;
    animation-delay: 4s;
}

.orb-3 {
    width: 30vw;
    height: 30vw;
    max-width: 450px;
    max-height: 450px;
    min-width: 200px;
    min-height: 200px;
    background: radial-gradient(circle, 
        rgba(132, 187, 56, 0.3) 0%, 
        rgba(88, 122, 39, 0.2) 50%, 
        rgba(73, 102, 44, 0.1) 100%);
    bottom: -5%;
    left: 8%;
    animation-delay: 8s;
}

.particle-field {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(1px 1px at 20px 30px, rgba(175, 245, 78, 0.4), transparent),
        radial-gradient(1px 1px at 40px 70px, rgba(134, 189, 40, 0.3), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(157, 212, 47, 0.3), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(150, 193, 31, 0.3), transparent),
        radial-gradient(1px 1px at 160px 30px, rgba(132, 187, 56, 0.3), transparent);
    background-repeat: repeat;
    background-size: clamp(150px, 15vw, 250px) clamp(75px, 7.5vw, 125px);
    animation: sparkle 20s linear infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
    33% { transform: translateY(-30px) rotate(120deg) scale(1.05); }
    66% { transform: translateY(20px) rotate(240deg) scale(0.95); }
}

@keyframes floatMobile {
    0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
    33% { transform: translateY(-20px) rotate(90deg) scale(1.03); }
    66% { transform: translateY(15px) rotate(180deg) scale(0.97); }
}

@keyframes floatTablet {
    0%, 100% { transform: translateY(0) rotate(0deg) scale(1); }
    33% { transform: translateY(-25px) rotate(110deg) scale(1.04); }
    66% { transform: translateY(18px) rotate(220deg) scale(0.96); }
}

@keyframes cardGlow {
    0%, 100% { 
        box-shadow: var(--card-shadow);
        transform: perspective(1200px) rotateX(2deg) rotateY(0.5deg);
    }
    50% { 
        box-shadow: 
            0 16px 64px rgba(0, 0, 0, 0.8),
            0 32px 128px rgba(0, 0, 0, 0.6),
            0 0 0 2px rgba(175, 245, 78, 0.2),
            0 0 30px rgba(175, 245, 78, 0.15),
            inset 0 2px 0 rgba(255, 255, 255, 0.2),
            inset 0 -2px 0 rgba(0, 0, 0, 0.4);
        transform: perspective(1200px) rotateX(2.5deg) rotateY(0.8deg);
    }
}

@keyframes iconPulse {
    0%, 100% { 
        transform: perspective(1000px) rotateX(3deg) rotateY(1deg);
        box-shadow: 
            0 12px 48px rgba(0, 0, 0, 0.5),
            0 0 0 2px rgba(175, 245, 78, 0.15),
            0 0 20px rgba(175, 245, 78, 0.1);
    }
    50% { 
        transform: perspective(1000px) rotateX(3.5deg) rotateY(1.2deg);
        box-shadow: 
            0 14px 56px rgba(0, 0, 0, 0.6),
            0 0 0 3px rgba(175, 245, 78, 0.2),
            0 0 25px rgba(175, 245, 78, 0.15);
    }
}

@keyframes sparkle {
    0% { transform: translateX(0); }
    100% { transform: translateX(200px); }
}

/* ================================================
   Responsive Background Scaling
   ================================================ */

/* Kleine Bildschirme (Mobile) */
@media (max-width: 768px) {
    .orb-1 {
        width: 60vw;
        height: 60vw;
        top: -10%;
        left: -15%;
        animation: floatMobile 10s ease-in-out infinite;
    }
    
    .orb-2 {
        width: 50vw;
        height: 50vw;
        top: 30%;
        right: -20%;
        animation: floatMobile 12s ease-in-out infinite;
    }
    
    .orb-3 {
        width: 45vw;
        height: 45vw;
        bottom: -15%;
        left: 15%;
        animation: floatMobile 14s ease-in-out infinite;
    }
    
    .particle-field {
        background-size: clamp(100px, 20vw, 150px) clamp(50px, 10vw, 75px);
    }
}

/* Mittlere Bildschirme (Tablet) */
@media (min-width: 769px) and (max-width: 1024px) {
    .orb-1 {
        width: 45vw;
        height: 45vw;
        top: -7%;
        left: -8%;
        animation: floatTablet 11s ease-in-out infinite;
    }
    
    .orb-2 {
        width: 38vw;
        height: 38vw;
        top: 35%;
        right: -12%;
        animation: floatTablet 13s ease-in-out infinite;
    }
    
    .orb-3 {
        width: 32vw;
        height: 32vw;
        bottom: -8%;
        left: 10%;
        animation: floatTablet 15s ease-in-out infinite;
    }
    
    .particle-field {
        background-size: clamp(180px, 18vw, 220px) clamp(90px, 9vw, 110px);
    }
}

/* Große Bildschirme (Desktop) */
@media (min-width: 1025px) and (max-width: 1440px) {
    .orb-1 {
        width: 42vw;
        height: 42vw;
        top: -6%;
        left: -6%;
    }
    
    .orb-2 {
        width: 36vw;
        height: 36vw;
        top: 38%;
        right: -10%;
    }
    
    .orb-3 {
        width: 31vw;
        height: 31vw;
        bottom: -6%;
        left: 9%;
    }
    
    .particle-field {
        background-size: clamp(200px, 16vw, 240px) clamp(100px, 8vw, 120px);
    }
}

/* Sehr große Bildschirme (Ultra-Wide) */
@media (min-width: 1441px) {
    .orb-1 {
        width: 38vw;
        height: 38vw;
        top: -4%;
        left: -4%;
    }
    
    .orb-2 {
        width: 32vw;
        height: 32vw;
        top: 42%;
        right: -6%;
    }
    
    .orb-3 {
        width: 28vw;
        height: 28vw;
        bottom: -4%;
        left: 7%;
    }
    
    .particle-field {
        background-size: clamp(220px, 14vw, 260px) clamp(110px, 7vw, 130px);
    }
}

/* Landscape Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .orb-1 {
        width: 45vw;
        height: 45vw;
        top: -8%;
        left: -10%;
    }
    
    .orb-2 {
        width: 38vw;
        height: 38vw;
        top: 25%;
        right: -15%;
    }
    
    .orb-3 {
        width: 32vw;
        height: 32vw;
        bottom: -10%;
        left: 12%;
    }
    
    .particle-field {
        background-size: clamp(120px, 18vw, 180px) clamp(60px, 9vw, 90px);
    }
}

/* ================================================
   True Liquid Glass Header (Fixed & Transparent)
   ================================================ */

.portal-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(50px) saturate(2.0);
    -webkit-backdrop-filter: blur(50px) saturate(2.0);
    border-bottom: 2px solid var(--glass-border);
    box-shadow: 
        0 12px 48px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(175, 245, 78, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.portal-nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(175, 245, 78, 0.6) 50%, 
        transparent 100%);
}

.portal-nav .container {
    max-width: none;
    padding-left: 20px;
    padding-right: 20px;
    margin: 0;
}

.portal-nav .d-flex {
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.portal-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--obsidian-text);
}

.portal-logo i {
    font-size: 1.8rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(175, 245, 78, 0.4));
}

.portal-nav-links {
    display: flex;
    gap: 16px;
}

.glass-button {
    background: var(--glass-bg-medium);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--obsidian-text);
    text-decoration: none;
    padding: 10px 18px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s var(--animation-smooth);
    position: relative;
    overflow: hidden;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.glass-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(175, 245, 78, 0.2), 
        transparent
    );
    transition: left 0.6s var(--animation-smooth);
}

.glass-button:hover {
    background: var(--hover-bg-light);
    border-color: var(--hover-border-light);
    color: var(--obsidian-text);
    transform: translateY(-1px);
    box-shadow: var(--hover-shadow-soft);
    backdrop-filter: var(--hover-blur);
}

.glass-button:hover::before {
    left: 100%;
}

/* ================================================
   Main Content Area
   ================================================ */

.portal-main {
    flex: 1;
    padding: 120px 0 100px 0;
    position: relative;
    z-index: 1;
}

.portal-hero {
    padding: 60px 0;
    text-align: center;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 30px;
    line-height: 1.1;
}

.title-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    filter: drop-shadow(0 0 20px rgba(175, 245, 78, 0.3));
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--obsidian-text-muted);
    margin: 0;
    opacity: 0.9;
}

/* ================================================
   Enhanced 3D Category Cards
   ================================================ */

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 60px;
    padding: 0 20px;
}

.category-card {
    background: var(--card-bg);
    backdrop-filter: blur(50px) saturate(2.2);
    -webkit-backdrop-filter: blur(50px) saturate(2.2);
    border: 3px solid var(--card-border);
    border-radius: 28px;
    padding: 40px;
    cursor: pointer;
    transition: all 0.6s var(--animation-card);
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transform: perspective(1200px) rotateX(2deg) rotateY(0.5deg);
    animation: cardGlow 8s ease-in-out infinite;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0.8;
    box-shadow: 0 0 20px rgba(175, 245, 78, 0.6);
}

/* Enhanced 3D Edge Effects */
.category-card::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        rgba(175, 245, 78, 0.3) 0%, 
        rgba(134, 189, 40, 0.2) 25%, 
        rgba(175, 245, 78, 0.1) 50%, 
        rgba(134, 189, 40, 0.2) 75%, 
        rgba(175, 245, 78, 0.3) 100%);
    border-radius: 30px;
    opacity: 0;
    transition: opacity 0.6s var(--animation-smooth);
    z-index: -1;
    filter: blur(8px);
}

.category-card:hover::after {
    opacity: 1;
}

.category-card:hover {
    transform: perspective(1200px) translateY(-16px) rotateX(4deg) rotateY(1.5deg);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--card-border-hover);
    background: var(--card-bg-hover);
    backdrop-filter: blur(60px) saturate(2.5);
    -webkit-backdrop-filter: blur(60px) saturate(2.5);
}

/* Kein Hover-Overlay mehr */

.category-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 2;
}

.category-icon {
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: var(--glass-bg-medium);
    backdrop-filter: blur(30px) saturate(1.8);
    -webkit-backdrop-filter: blur(30px) saturate(1.8);
    border: 2px solid rgba(175, 245, 78, 0.3);
    margin-bottom: 25px;
    transition: all 0.6s var(--animation-card);
    position: relative;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(175, 245, 78, 0.15),
        0 0 15px rgba(175, 245, 78, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.3),
        inset 0 0 12px rgba(175, 245, 78, 0.05);
    transform: perspective(800px) rotateX(2deg) rotateY(0.5deg);
    animation: iconPulse 6s ease-in-out infinite;
    overflow: hidden;
}

.category-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.category-icon i {
    font-size: 2.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 10px rgba(175, 245, 78, 0.4));
}

.category-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--obsidian-text);
}

.category-description {
    color: var(--obsidian-text-muted);
    margin: 0 0 25px 0;
    line-height: 1.6;
    font-size: 1rem;
}

.category-arrow {
    transition: all 0.4s var(--animation-smooth);
}

.category-arrow i {
    font-size: 1.4rem;
    color: var(--obsidian-text-muted);
    transition: all 0.4s var(--animation-smooth);
}

.category-card:hover .category-icon {
    transform: perspective(1000px) translateY(-8px) scale(1.1) rotateX(5deg) rotateY(2deg);
    box-shadow: 
        0 16px 64px rgba(0, 0, 0, 0.7),
        0 0 0 3px rgba(175, 245, 78, 0.25),
        0 0 30px rgba(175, 245, 78, 0.2),
        0 0 60px rgba(175, 245, 78, 0.1),
        inset 0 4px 0 rgba(255, 255, 255, 0.25),
        inset 0 -3px 0 rgba(0, 0, 0, 0.4),
        inset 0 0 30px rgba(175, 245, 78, 0.1);
    border-color: rgba(175, 245, 78, 0.45);
    backdrop-filter: blur(50px) saturate(2.2);
    -webkit-backdrop-filter: blur(50px) saturate(2.2);
}

.category-card:hover .category-arrow {
    transform: translateX(8px);
}

.category-card:hover .category-arrow i {
    color: var(--obsidian-text);
}

/* ================================================
   Enhanced 3D Download Cards
   ================================================ */

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding: 0 20px;
}

.download-card {
    background: var(--card-bg);
    backdrop-filter: blur(40px) saturate(1.8);
    -webkit-backdrop-filter: blur(40px) saturate(1.8);
    border: 2px solid var(--card-border);
    border-radius: 22px;
    padding: 30px;
    transition: all 0.5s var(--animation-smooth);
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    transform: perspective(900px) rotateX(1deg) rotateY(0.3deg);
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(175, 245, 78, 0.5) 50%, 
        transparent 100%);
    opacity: 0.7;
}

/* Download Cards haben keine Hover-Effekte mehr */

.download-image {
    position: relative;
    margin-bottom: 20px;
}

.download-thumbnail {
    width: 96px;
    height: 96px;
    object-fit: cover;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    margin: 0 auto 20px auto;
    display: block;
}

.download-icon {
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: var(--glass-bg-medium);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(175, 245, 78, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    margin: 0 auto 20px auto;
}

.download-icon i {
    font-size: 2.5rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 8px rgba(175, 245, 78, 0.3));
}

/* Entfernt - doppelte Regel */

.download-content {
    flex: 1;
    margin-bottom: 20px;
}

.download-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--obsidian-text);
    line-height: 1.3;
}

.download-description {
    color: var(--obsidian-text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.5;
}

.download-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.download-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--obsidian-text-dim);
    font-size: 0.85rem;
}

.download-meta-item i {
    color: var(--obsidian-text-muted);
}

.download-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.download-btn {
    flex: 1;
    background: var(--glass-bg-medium);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--obsidian-text);
    text-decoration: none;
    padding: 12px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s var(--animation-smooth);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.download-btn:hover {
    background: var(--hover-bg-light);
    border-color: var(--hover-border-light);
    color: var(--obsidian-text);
    transform: translateY(-1px);
    box-shadow: var(--hover-shadow-soft);
    backdrop-filter: var(--hover-blur);
}

.copy-url-btn {
    padding: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--glass-bg-medium);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    color: var(--obsidian-text-muted);
    transition: all 0.3s var(--animation-smooth);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.copy-url-btn:hover {
    background: var(--hover-bg-light);
    border-color: var(--hover-border-light);
    color: var(--obsidian-text);
    transform: translateY(-1px);
    box-shadow: var(--hover-shadow-soft);
    backdrop-filter: var(--hover-blur);
}

/* ================================================
   Category Page Header
   ================================================ */

.category-header {
    background: var(--card-bg);
    backdrop-filter: blur(55px) saturate(2.2);
    -webkit-backdrop-filter: blur(55px) saturate(2.2);
    border: 3px solid var(--card-border);
    border-radius: 28px;
    padding: 52px;
    margin-bottom: 40px;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transform: perspective(1200px) rotateX(2deg) rotateY(0.5deg);
}

.category-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.6;
}

.category-header-content {
    display: flex;
    align-items: center;
    gap: 32px;
}

.category-header-icon {
    width: 96px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: var(--glass-bg-medium);
    backdrop-filter: blur(25px) saturate(1.5);
    -webkit-backdrop-filter: blur(25px) saturate(1.5);
    border: 2px solid rgba(175, 245, 78, 0.3);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(175, 245, 78, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    transform: perspective(600px) rotateX(1deg);
}

.category-header-image {
    width: 96px;
    height: 96px;
    object-fit: cover;
    border-radius: 20px;
    border: 2px solid rgba(175, 245, 78, 0.3);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(175, 245, 78, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    transform: perspective(600px) rotateX(1deg);
}

.category-header-icon i {
    font-size: 3rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 15px rgba(175, 245, 78, 0.4));
}

.category-header-title {
    font-size: 2.5rem;
    margin-bottom: 12px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.category-header-description {
    color: var(--obsidian-text-muted);
    font-size: 1.125rem;
    margin: 0;
    line-height: 1.5;
}

/* ================================================
   True Liquid Glass Footer (Fixed & Transparent)
   ================================================ */

.portal-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--glass-bg);
    backdrop-filter: blur(50px) saturate(2.0);
    -webkit-backdrop-filter: blur(50px) saturate(2.0);
    border-top: 2px solid var(--glass-border);
    box-shadow: 
        0 -12px 48px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(175, 245, 78, 0.1),
        inset 0 -1px 0 rgba(255, 255, 255, 0.1);
}

.portal-footer::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(175, 245, 78, 0.6) 50%, 
        transparent 100%);
}

.portal-footer .container {
    max-width: none;
    padding-left: 20px;
    padding-right: 20px;
    margin: 0;
}

.portal-footer .text-center {
    padding: 16px 0;
}

.portal-footer small {
    color: var(--obsidian-text-muted);
    font-size: 0.9rem;
}

/* ================================================
   Enhanced Empty State
   ================================================ */

.empty-state {
    background: var(--card-bg);
    backdrop-filter: blur(40px) saturate(1.6);
    -webkit-backdrop-filter: blur(40px) saturate(1.6);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transform: perspective(800px) rotateX(0.5deg);
}

.empty-state::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.4;
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--obsidian-text-dim);
    margin-bottom: 24px;
    opacity: 0.6;
}

.empty-state h3 {
    color: var(--obsidian-text);
    margin-bottom: 16px;
}

/* ================================================
   Badge Styles
   ================================================ */

.badge {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.badge-folder {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.badge-stream {
    background: rgba(13, 202, 240, 0.15);
    color: #0dcaf0;
    border: 1px solid rgba(13, 202, 240, 0.3);
}

.download-badges {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ================================================
   Responsive Design
   ================================================ */

@media (max-width: 768px) {
    .portal-nav .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .portal-main {
        padding-top: 100px;
        padding-bottom: 80px;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .categories-grid,
    .downloads-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .category-header-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .category-header {
        padding: 30px 20px;
    }
    
    .portal-nav-links {
        gap: 12px;
    }
    
    .glass-button {
        padding: 8px 14px;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .portal-nav .container,
    .portal-footer .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .portal-main {
        padding-top: 90px;
        padding-bottom: 70px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .category-card {
        padding: 30px 20px;
    }
    
    .download-card {
        padding: 20px;
    }
    
    .categories-grid,
    .downloads-grid {
        padding-left: 10px;
        padding-right: 10px;
    }
}

/* ================================================
   Toast Notifications
   ================================================ */

.glass-toast {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--obsidian-text);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.glass-toast .toast-body {
    padding: 16px;
}

/* ================================================
   Utility Classes
   ================================================ */

.glass-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.animate-in {
    animation: slideInUp 0.6s var(--animation-card);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}