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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans KR",
        sans-serif;
    background-color: #f5f6f7;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.error-container {
    max-width: 560px;
    width: 100%;
    padding: 20px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.error-card {
    background: #ffffff;
    border: 1px solid #dadde6;
    padding: 60px 40px;
    border-radius: 0;
    text-align: center;
}

.logo-section {
    margin-bottom: 40px;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 10px;
}

.logo-zio {
    color: #1f2937;
}

.logo-dot {
    color: #0ea5e9;
}

.logo-workspace {
    background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 50%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.error-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.error-icon {
    margin-bottom: 30px;
    animation: float 3s ease-in-out infinite;
}

.error-icon svg {
    filter: drop-shadow(0 4px 12px rgba(37, 99, 235, 0.15));
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.error-title {
    font-size: 28px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 12px;
}

.error-subtitle {
    font-size: 18px;
    font-weight: 500;
    color: #4b5563;
    margin-bottom: 16px;
}

.error-message {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 400px;
}

.btn-back-home {
    width: 100%;
    max-width: 300px;
    height: 51px;
    background: #2563eb;
    border: none;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.btn-back-home:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.btn-back-home:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .error-card {
        padding: 40px 20px;
    }

    .logo {
        font-size: 2rem;
    }

    .error-icon svg {
        width: 100px;
        height: 100px;
    }

    .error-title {
        font-size: 24px;
    }

    .error-subtitle {
        font-size: 16px;
    }
}