:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #0ea5e9;
    --border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, #1e293b, #0f172a);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 480px;
    width: 100%;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.logo-container img {
    height: 60px;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.3));
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.description a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.description a:hover {
    text-decoration: underline;
}

.status-bar {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 99px;
    border: 1px solid var(--border);
    backdrop-filter: blur(8px);
    z-index: 100;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

.logout-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding-left: 12px;
    border-left: 1px solid var(--border);
    transition: color 0.2s;
}

.logout-link:hover {
    color: var(--text-primary);
}

.input-group {
    margin-bottom: 20px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: #fff;
    font-size: 1rem;
    text-align: center;
    transition: all 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.1);
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-bottom: 16px;
    background: rgba(239, 68, 68, 0.1);
    padding: 12px;
    border-radius: 12px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

button {
    width: 100%;
    padding: 16px;
    background: var(--accent);
    color: #0f172a;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 12px;
}

button:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    background: var(--text-secondary);
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.result-box {
    margin-top: 32px;
    padding: 24px;
    background: rgba(15, 23, 42, 0.4);
    border-radius: 16px;
    border-left: 4px solid var(--accent);
    text-align: left;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.result-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.result-value {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.result-value.highlight {
    color: var(--accent);
}

.result-value.large {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 20px;
}

.result-value.secondary {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 20px;
}

.divider {
    height: 1px;
    background: var(--border);
    margin: 20px 0;
}

.footer-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 12px;
}

@media (max-width: 400px) {
    .container {
        padding: 24px;
        border-radius: 16px;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    .result-value.large {
        font-size: 1.4rem;
    }
    
    .status-bar {
        top: 10px;
        right: 10px;
        padding: 6px 12px;
        font-size: 0.75rem;
    }
}