:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #38bdf8;
    --secondary-text: #94a3b8;
}

* {
    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);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.container {
    max-width: 600px;
    padding: 2rem;
}

header {
    margin-bottom: 3rem;
}

.logo-placeholder {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    color: var(--bg-color);
    font-size: 2rem;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 12px;
    margin: 0 auto 1rem;
}

h1 {
    font-size: 1.5rem;
    letter-spacing: 0.2rem;
    text-transform: uppercase;
    color: var(--secondary-text);
}

h2 {
    font-size: clamp(2rem, 8vw, 3.5rem);
    margin-bottom: 1rem;
}

p {
    font-size: 1.1rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: #1e293b;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 3rem;
}

.progress {
    width: 60%;
    height: 100%;
    background-color: var(--accent-color);
    box-shadow: 0 0 15px var(--accent-color);
    animation: loading 2s ease-in-out infinite alternate;
}

@keyframes loading {
    from { transform: translateX(-10%); }
    to { transform: translateX(50%); }
}

footer {
    font-size: 0.875rem;
    color: #475569;
}