/* Setbian Portal Design System - Enhanced Pure Dark Theme */
:root {
  /* Colors - Ultra Dark Base */
  --bg-color: #050505;
  --bg-secondary: #0a0a0a;
  
  /* Glass & Surface */
  --glass-bg: rgba(20, 20, 20, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.03);
  
  /* Text */
  --text-primary: #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;
  
  /* Accents */
  --accent-primary: #6366f1; /* Indigo */
  --accent-glow: rgba(99, 102, 241, 0.4);
  --deb-red: #d70a53; /* Debian Red */
  --deb-glow: rgba(215, 10, 83, 0.4);
  --success: #10b981;
  
  /* Spacing & Radius */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --radius-md: 12px;
  --radius-lg: 24px;
  
  /* Animation */
  --trans-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
  --trans-smooth: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* Reset & Base */
* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-primary); }

/* Background Ambience (Non-Static) */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.blob-1 { top: -10%; left: -10%; width: 500px; height: 500px; background: var(--accent-primary); animation-delay: 0s; }
.blob-2 { bottom: -10%; right: -10%; width: 600px; height: 600px; background: #4c1d95; animation-delay: -5s; }
.blob-3 { top: 40%; left: 40%; width: 300px; height: 300px; background: var(--deb-red); opacity: 0.15; animation-delay: -10s; }

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

.grid-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
}

/* Layout */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
header {
    position: sticky;
    top: 20px;
    margin: 0 var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    z-index: 1000;
    padding: 1rem 2rem;
    transition: all var(--trans-smooth);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--deb-red), #9f1239);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-weight: bold;
    box-shadow: 0 0 15px var(--deb-glow);
}

.version-badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff 20%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: textShine 5s linear infinite alternate;
}

@keyframes textShine {
    0% { filter: brightness(100%); }
    100% { filter: brightness(130%); text-shadow: 0 0 20px rgba(255,255,255,0.2); }
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-weight: 300;
}

/* Stats Glass Cards */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.stat-item {
    background: linear-gradient(145deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: var(--trans-fast);
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.1);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-primary);
    font-family: 'JetBrains Mono', monospace;
    text-shadow: 0 0 20px var(--accent-glow);
}

/* Controls & Search */
.controls-wrapper {
    background: rgba(10, 10, 10, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin: 0 auto 3rem;
    max-width: 900px;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    backdrop-filter: blur(10px);
    align-items: center;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.5rem;
    background: rgba(0,0,0,0.3);
    border: 1px solid transparent;
    border-radius: 12px;
    color: white;
    font-family: inherit;
    transition: var(--trans-fast);
}

.search-input:focus {
    background: rgba(0,0,0,0.5);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
}

.filter-buttons {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 2px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--trans-fast);
    white-space: nowrap;
    font-size: 0.9rem;
}

.filter-btn:hover, .filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-color);
    border-color: var(--text-primary);
    font-weight: 600;
}

/* App Grid */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding-bottom: 4rem;
}

.app-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all var(--trans-smooth);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.05), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.app-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(255,255,255,0.15);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.6);
}

.app-card:hover::before { opacity: 1; }

.app-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.app-icon {
    width: 64px;
    height: 64px;
    background: #18181b;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    border: 1px solid var(--glass-border);
    transition: var(--trans-fast);
}

.app-card:hover .app-icon {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: rotate(-5deg);
}

.app-title-block { flex: 1; }

.app-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.2rem;
}

.app-badge {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--deb-red);
    color: white;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    margin-bottom: 0.2rem;
    box-shadow: 0 0 10px var(--deb-glow);
}

.app-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

.app-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
    line-height: 1.6;
}

.card-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.btn {
    padding: 0.75rem;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--trans-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    background: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-glass {
    background: rgba(255,255,255,0.05);
    color: white;
    border: 1px solid var(--glass-border);
}

.btn-glass:hover {
    background: rgba(255,255,255,0.1);
    border-color: white;
}

/* Info Sections */
.info-section {
    padding: 6rem 0;
    position: relative;
    background: linear-gradient(180deg, transparent 0%, rgba(20,20,20,0.8) 50%, transparent 100%);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 4rem;
}

.info-card h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: white;
}

.contribution-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contribution-list li strong { color: var(--text-primary); }

.quote-box {
    text-align: center;
    max-width: 800px;
    margin: 4rem auto;
    padding: 3rem;
    background: radial-gradient(circle at center, rgba(30,30,30,0.5), transparent 70%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
}

.quote-text {
    font-size: 1.8rem;
    font-weight: 300;
    font-style: italic;
    background: linear-gradient(to bottom, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 4rem 0 2rem;
    background: #000;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: white;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.8rem; }

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.2s;
}

.footer-col a:hover {
    color: var(--accent-primary);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
    background: #121215;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(20px);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-overlay.active .modal { transform: scale(1) translateY(0); }

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.02);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 36px; height: 36px;
    border-radius: 50%;
    transition: 0.2s;
}

.modal-close:hover { background: rgba(255,255,255,0.1); color: white; }

.modal-body { padding: 2rem; }

.modal-section { margin-bottom: 2rem; }
.modal-section h4 { color: var(--accent-primary); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.1em; margin-bottom: 0.5rem; }

/* Scroll Animation Class */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active { opacity: 1; transform: translateY(0); }

/* Loader */
.loader {
    width: 48px; height: 48px;
    border: 3px solid #FFF;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader::after {
    content: '';  
    box-sizing: border-box;
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    width: 40px; height: 40px;
    border-radius: 50%;
    border: 3px solid;
    border-color: var(--accent-primary) transparent;
}
@keyframes rotation {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .controls-wrapper { flex-direction: column; align-items: stretch; }
    .card-actions { grid-template-columns: 1fr; }
}