:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #3b82f6;
    --card-bg: rgba(30, 41, 59, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
    --success-color: #10b981;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden; /* Esconde os elementos flutuantes fora da tela */
    position: relative;
}

/* Fundo Animado */
#background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none; /* Impede que os pacotes interfiram no clique */
}

.floating-package {
    position: absolute;
    color: rgba(255, 255, 255, 0.03); /* Ícones bem sutis */
    animation: floatUp linear infinite;
    bottom: -10%;
}

@keyframes floatUp {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-120vh) rotate(360deg);
        opacity: 0;
    }
}

/* Container Principal (Glassmorphism) */
.container {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    max-width: 650px;
    width: 90%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

header .logo-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

header .logo-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: #94a3b8;
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
}

/* Caixa de Comando */
.command-box {
    display: flex;
    align-items: center;
    background: #020617;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 2.5rem;
    position: relative;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.command-box:hover {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.1);
}

.prompt {
    color: var(--success-color);
    margin-right: 1rem;
    font-weight: bold;
    user-select: none;
}

code {
    font-family: "Fira Code", "Courier New", Courier, monospace;
    flex-grow: 1;
    text-align: left;
    font-size: 0.95rem;
    color: #e2e8f0;
    overflow-x: auto;
    white-space: nowrap;
}

code::-webkit-scrollbar {
    display: none;
}

button {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    margin-left: 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

button:hover {
    color: var(--accent-color);
    background: rgba(255, 255, 255, 0.05);
}

button.success {
    color: var(--success-color);
}

/* Botão GitHub */
.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-github:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}