:root {
    --bg-color: #0b0f19;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.05);
    --glow-1: #3b82f6;
    /* Azul brilhante */
    --glow-2: #8b5cf6;
    /* Roxo vibrante */
}

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

body {
    /* Fonte do sistema para não violar a política default-src 'self' no CSP */
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.background-effects {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    z-index: 0;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 10s ease-in-out infinite alternate;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--glow-1);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--glow-2);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.container {
    position: relative;
    z-index: 1;
    perspective: 1000px;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 4rem 5rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: transform 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
}

.animate-text {
    font-size: 5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Animations */
@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    100% {
        transform: translate(50px, 50px) scale(1.1);
    }
}

@keyframes fadeUp {
    0% {
        transform: translateY(40px);
        opacity: 0;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.construction-text {
    display: inline-block;
    margin-top: 0.75rem;
    font-size: 0.85em;
    color: #64748b;
    font-weight: 600;
    opacity: 0.25;
    filter: grayscale(1) brightness(1.5);
    letter-spacing: 0.05em;
}

.watermark-stacks {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.25rem;
}

.watermark-stacks img {
    height: 40px;
    /* Tamanho pequeno, estilo badge de github */
    opacity: 0.25;
    /* Efeito marca d'água */
    filter: grayscale(1) brightness(1.5);
    transition: all 0.3s ease;
    cursor: default;
}

.watermark-stacks img.aws-logo {
    filter: invert(1) grayscale(1) opacity(0.4);
    /* Tratamento para a logo da AWS que é preta */
}

.watermark-stacks img:hover {
    opacity: 0.7;
    filter: grayscale(0) brightness(1);
    transform: scale(1.1);
}

.watermark-stacks img.aws-logo:hover {
    filter: invert(1) grayscale(0) opacity(0.7);
}

/* Botão de retorno nas páginas de erro */
.btn-home {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    background: linear-gradient(to right, #60a5fa, #8b5cf6);
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 14px 0 rgba(96, 165, 250, 0.4);
    transition: all 0.3s ease;
}

.btn-home:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(139, 92, 246, 0.6);
    filter: brightness(1.1);
}

.btn-home:active {
    transform: translateY(0);
}