/* CSS Design System - GK Teknologi Futuristic Android App Page */

:root {
    --bg-color: #06060c;
    --card-bg: rgba(13, 11, 28, 0.45);
    --primary: #00f0ff;
    --secondary: #7000ff;
    --text-primary: #ffffff;
    --text-muted: #9b9aab;
    --border-glow: rgba(0, 240, 255, 0.2);
    --font-cyber: 'Orbitron', sans-serif;
    --font-tech: 'Rajdhani', sans-serif;
    --font-main: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Background Cyber Grid */
.cyber-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 1;
    pointer-events: none;
}

.cyber-grid::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, transparent 20%, #06060c 85%);
    pointer-events: none;
}

/* Glowing ambient backlights */
.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    z-index: 2;
    pointer-events: none;
    animation: floatGlow 15s infinite alternate ease-in-out;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: -100px;
    left: -100px;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes floatGlow {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(50px, 30px) scale(1.1);
    }
}

/* Main Container Layout */
.app-container {
    width: 100%;
    max-width: 540px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    z-index: 10;
}

/* Brand Header */
.brand-header {
    text-align: center;
}

.logo-text {
    font-family: var(--font-cyber);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 5px;
    background: linear-gradient(135deg, var(--text-primary) 30%, rgba(255, 255, 255, 0.4) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.accent-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

/* Glassmorphism Card styling */
.glass-card {
    position: relative;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: 24px;
    padding: 40px 32px;
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.5),
        inset 0 0 20px rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
    animation: borderScan 4s linear infinite;
}

@keyframes borderScan {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* App Icon / Tech Vibe */
.app-icon-wrapper {
    position: relative;
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-icon {
    width: 80px;
    height: 80px;
    background: rgba(0, 0, 0, 0.6);
    border: 2px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
    z-index: 5;
}

.app-icon svg {
    width: 44px;
    height: 44px;
    filter: drop-shadow(0 0 8px var(--primary));
}

.icon-pulse {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 26px;
    animation: iconPulseAnimation 2s infinite ease-out;
    pointer-events: none;
}

@keyframes iconPulseAnimation {
    0% {
        transform: scale(0.85);
        opacity: 0.8;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

/* Titles and Typography */
.app-title {
    font-family: var(--font-cyber);
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 6px;
    text-align: center;
    color: var(--text-primary);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.version-tag {
    font-family: var(--font-tech);
    font-size: 1rem;
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 2px;
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.2);
    padding: 2px 10px;
    border-radius: 12px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.app-desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 28px;
    font-weight: 300;
}

/* Feature Badges */
.feature-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 36px;
    width: 100%;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-tech);
    font-size: 0.85rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--primary);
    box-shadow: 0 0 8px var(--primary);
}

/* Download Section & Neon Glow Button */
.download-section {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 12px;
}

.glow-btn {
    width: 100%;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-family: var(--font-cyber);
    font-size: 1rem;
    font-weight: 700;
    color: #000000;
    background: linear-gradient(90deg, var(--primary) 0%, #00ffaa 100%);
    border: none;
    border-radius: 14px;
    padding: 18px 28px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.glow-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transition: 0.5s;
    pointer-events: none;
}

.glow-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
    color: #000000;
}

.glow-btn:hover::before {
    left: 150%;
    transition: 0.8s ease-in-out;
}

.glow-btn:active {
    transform: translateY(1px);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
}

.download-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.glow-btn:hover .download-icon {
    transform: translateY(2px);
}

.download-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Footer styling */
.app-footer {
    text-align: center;
    font-size: 0.75rem;
    color: rgba(155, 154, 171, 0.5);
    margin-top: 12px;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .glass-card {
        padding: 30px 20px;
    }
    
    .app-title {
        font-size: 1.5rem;
    }
    
    .app-desc {
        font-size: 0.85rem;
    }
    
    .glow-btn {
        padding: 16px 20px;
        font-size: 0.9rem;
    }
}