* {
    box-sizing: border-box;
}
body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #eee;
    min-height: 100vh;
    margin: 0;
    padding: 1rem;
}
.container {
    max-width: 420px;
    margin: 0 auto;
    padding: 2rem;
    background: rgba(255,255,255,0.06);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
header {
    text-align: center;
    margin-bottom: 2rem;
}
header h1 {
    margin: 0 0 0.5rem;
    font-size: 1.5rem;
}
.subtitle {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.85;
}
.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.choices {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.choice {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
}
.choice input {
    margin: 0;
}
#textInput {
    width: 100%;
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
    background: rgba(255,255,255,0.08);
    color: #fff;
}
#textInput::placeholder {
    color: rgba(255,255,255,0.4);
}
.primary {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a2e;
    background: #6c9;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 0.5rem;
}
.primary:hover {
    background: #7dba6a;
}
.primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}
.loading {
    text-align: center;
    padding: 2rem;
}
.loading p {
    margin: 0;
    font-size: 1.1rem;
    animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.error {
    color: #f88;
    padding: 1rem;
    border-radius: 8px;
    background: rgba(255,80,80,0.15);
    margin-top: 1rem;
}