* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: #eee;
}

.page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.card {
    width: 100%;
    max-width: 700px;
    background: #1b1b1b;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 24px;
}

.app-card {
    max-width: 900px;
}

.login-card {
    max-width: 420px;
}

label {
    display: block;
    margin: 16px 0 6px;
}

input,
select {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #444;
    background: #222;
    color: #eee;
}

button {
    border: 0;
    border-radius: 8px;
    cursor: pointer;
}

.primary-button {
    margin-top: 20px;
    width: 100%;
    padding: 14px;
    background: #3a7afe;
    color: #fff;
    font-weight: bold;
}

.toggle-button {
    margin-top: 16px;
    width: 100%;
    padding: 12px;
    background: #2b2b2b;
    color: #ddd;
    border: 1px solid #444;
}

a {
    color: #7fb0ff;
    text-decoration: none;
}

.error {
    margin-top: 16px;
    padding: 10px;
    border-radius: 8px;
    background: #4a1f1f;
    border: 1px solid #7a2d2d;
    color: #ffb3b3;
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.muted {
    color: #aaa;
    font-size: 14px;
}

.hidden {
    display: none;
}

.options-panel {
    margin-top: 16px;
    padding: 18px;
    border: 1px solid #333;
    border-radius: 10px;
    background: #161616;
}

.option-group + .option-group {
    margin-top: 18px;
}

.option-title {
    font-weight: bold;
    margin-bottom: 10px;
}

.radio-line {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 8px 0;
}

.radio-line input {
    width: auto;
    margin: 0;
}

.log-box {
    margin-top: 24px;
    border: 1px solid #333;
    border-radius: 10px;
    background: #101010;
    overflow: hidden;
}

.log-title {
    padding: 12px 16px;
    border-bottom: 1px solid #333;
    font-weight: bold;
    background: #171717;
}

#log-output {
    margin: 0;
    padding: 16px;
    min-height: 260px;
    max-height: 420px;
    overflow: auto;
    font-family: monospace;
    font-size: 14px;
    color: #d7d7d7;
    white-space: pre-wrap;
}