:root {
    --bg-color: #030305;
    --text-primary: #f0f0f5;
    --text-secondary: #8c8c9e;
    --accent: #111115;
    --accent-hover: #1a1a20;
    --glass-bg: rgba(20, 20, 30, 0.4);
    --glass-border: rgba(0, 240, 255, 0.15);
    --glow-cyan: rgba(0, 240, 255, 0.4);
    --glow-purple: rgba(176, 38, 255, 0.4);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
}

/* Abstract Background Glows */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
    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;
    animation: grid-scroll 20s linear infinite;
}

@keyframes grid-scroll {
    0% { background-position: 0 0; }
    100% { background-position: 40px 40px; }
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 20s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--glow-cyan) 0%, transparent 70%);
    top: -100px;
    left: -200px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--glow-purple) 0%, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -10s;
}

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

/* Main Container */
.container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    margin: auto;
    animation: fade-in-up 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 3rem 2.5rem;
    text-align: center;
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.05), 
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Typography & Layout */
.logo {
    width: 96px;
    height: 96px;
    border-radius: 22px;
    margin-bottom: 1.5rem;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 2rem;
}

.description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 2.5rem;
}

.badge-container {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.badge {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 9999px;
    border: 1px solid rgba(255,255,255,0.05);
}

.badge-light {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.15);
}

/* Download Button with Fading Animation */
.download-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--text-primary);
    color: var(--bg-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 1rem 2rem;
    border-radius: 9999px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.download-button::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.download-button:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.15);
}

.download-button:hover::before {
    opacity: 1;
}

.download-button:active {
    transform: translateY(1px) scale(0.98);
}

.download-icon {
    width: 20px;
    height: 20px;
}

.footnote {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Entrance Animation */
@keyframes fade-in-up {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Terminal Box */
.terminal-box {
    background: rgba(10, 10, 15, 0.8);
    border-radius: 8px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
    overflow: hidden;
    margin: 1rem auto;
    text-align: left;
    max-width: 100%;
}

.terminal-header {
    background: #2d2d2d;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 6px;
}

.dot.close { background: #ff5f56; }
.dot.minimize { background: #ffbd2e; }
.dot.expand { background: #27c93f; }

.terminal-title {
    color: #a1a1aa;
    font-size: 0.8rem;
    margin-left: auto;
    margin-right: auto;
    transform: translateX(-24px); /* visually center */
}

.terminal-body {
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.terminal-body code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9rem;
    color: #00f0ff;
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
    overflow-x: auto;
    white-space: nowrap;
}

.copy-button {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 1rem;
    transition: background 0.2s;
}

.copy-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Feature List */
.features-list {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: transform 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.feature-item:hover {
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(0, 240, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 240, 255, 0.08);
}

.feature-icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    border-radius: 12px;
}

.feature-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.feature-text strong {
    font-size: 1rem;
    color: var(--text-primary);
}

.feature-text span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 3D Card Hover */
.card {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.card:hover {
    transform: translateY(-5px) scale(1.01);
}