* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #111827;
    color: #f9fafb;
    font-family:
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

.login-container {
    width: 100%;
    max-width: 420px;
    margin: 90px auto;
    padding: 20px;
}

.login-card {
    background: #1f2937;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0,0,0,.35);
}

h1 {
    margin-top: 0;
    text-align: center;
}

.subtitle {
    text-align: center;
    color: #9ca3af;
    margin-bottom: 25px;
}

label {
    display: block;
    margin-top: 18px;
    margin-bottom: 7px;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #4b5563;
    border-radius: 7px;
    background: #111827;
    color: #ffffff;
    font-size: 16px;
}

input:focus {
    outline: 2px solid #60a5fa;
    outline-offset: 1px;
}

button {
    width: 100%;
    margin-top: 25px;
    padding: 12px;
    border: 0;
    border-radius: 7px;
    cursor: pointer;
    font-size: 16px;
}

.error {
    background: #7f1d1d;
    padding: 12px;
    margin-bottom: 15px;
    border-radius: 7px;
}

.dashboard {
    max-width: 800px;
    margin: 80px auto;
    padding: 30px;
}

.dashboard form {
    max-width: 250px;
}