* { box-sizing: border-box; }

body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    font-family: 'Inter', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.login-card {
    background: #fff;
    padding: 48px 40px 40px;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    width: 100%;
    max-width: 400px;
}

.login-logo {
    text-align: center;
    margin-bottom: 8px;
}

.login-logo .brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.03em;
}

.login-logo .brand span {
    color: #3b82f6;
}

.login-subtitle {
    text-align: center;
    font-size: 0.8rem;
    color: #94a3b8;
    font-weight: 500;
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-input {
    width: 100%;
    padding: 11px 14px;
    border: 1.5px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: #0f172a;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 8px;
}

.btn-login:hover    { background: #1e293b; }
.btn-login:disabled { background: #94a3b8; cursor: not-allowed; }

.error-msg {
    color: #dc2626;
    background: #fee2e2;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 18px;
    display: none;
    font-weight: 500;
}