:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #e74c3c;
    --text-color: #2c3e50;
    --background-color: #ecf0f1;
    --gradient-start: #2c3e50;
    --gradient-end: #3498db;
}

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

html,
body {
    height: 100%;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--background-color), #bdc3c7);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 1rem;
}

body::before {
    content: '';
    position: fixed;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    animation: rotate 30s linear infinite;
    z-index: 0;
}

.container {
    width: 100%;
    max-width: 600px;
    padding: 1rem;
    text-align: center;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

.content {
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem 1.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transform-style: preserve-3d;
    perspective: 1000px;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.logo {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.logo svg {
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
    transition: all 0.3s ease;
    width: 50px;
    height: 50px;
}

.logo::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.logo:hover::after {
    opacity: 0.2;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-weight: 500;
    line-height: 1.4;
}

.progress-container {
    width: 100%;
    height: 6px;
    background-color: rgba(44, 62, 80, 0.1);
    border-radius: 3px;
    margin: 1.5rem 0;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 3px;
    animation: progress 2s ease-in-out infinite;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shine 2s infinite;
}

.description {
    color: var(--secondary-color);
    line-height: 1.6;
    font-size: 1rem;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 0.5rem;
}

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

    100% {
        transform: translateX(400%);
    }
}

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

    100% {
        transform: translateX(100%);
    }
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@media (max-width: 640px) {
    body {
        padding: 0.5rem;
    }

    .container {
        padding: 0.5rem;
    }

    .content {
        padding: 1.5rem 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.125rem;
        margin-bottom: 1rem;
    }

    .description {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .logo svg {
        width: 40px;
        height: 40px;
    }
}