:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-color: #f8fafc;
    --text-color: #1e293b;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
}

.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-icon {
    font-size: 2.5rem;
}

.logo h1 {
    margin: 0.5rem 0 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo p {
    margin: 0;
    font-size: 0.875rem;
    color: #64748b;
}

.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
}

input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

button {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background-color: var(--primary-hover);
}

.password-requirement {
    font-size: 0.7em;
    color: gray;
    margin-top: 0;
}

.message {
    margin-top: 1rem;
    font-size: 0.875rem;
    text-align: center;
    min-height: 1.25rem;
}

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
}

.login-footer a {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
}