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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #f4f6f9;
    color: #1e293b;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.login-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 40px 32px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.04);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-brand {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: #2563eb;
    margin-bottom: 8px;
}

.login-title {
    font-size: 22px;
    font-weight: 800;
    color: #0f172a;
}

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

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    color: #1e293b;
    background: #ffffff;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
    margin-top: 4px;
}

.login-btn:hover {
    background: #1d4ed8;
}

.login-btn:disabled {
    background: #94a3b8;
    cursor: not-allowed;
}

.login-error {
    background: #fef2f2;
    color: #dc2626;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    display: none;
    text-align: center;
}

.login-error.visible {
    display: block;
}