body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    color: #1f2937;
}

.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 20px;
}

.card {
    background: #fff;
    border-radius: 14px;
    padding: 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

h1 {
    margin-top: 0;
    margin-bottom: 16px;
}

.intro,
.note {
    color: #4b5563;
}

.hint-box {
    background: #f3f4f6;
    border-left: 4px solid #111827;
    padding: 12px 14px;
    border-radius: 8px;
    margin-bottom: 14px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.field {
    display: flex;
    flex-direction: column;
}

.field label {
    margin-bottom: 6px;
    font-weight: 700;
}

.field input, .field select {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    background-color: #fff;
}

.field.full {
    grid-column: 1 / -1;
}

textarea {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
}

.char-counter {
    margin-top: 6px;
    font-size: 13px;
    color: #6b7280;
    text-align: right;
}

.language-switch {
    text-align: center;
    margin-bottom: 20px;
}

.language-switch a {
    margin: 0 10px;
    text-decoration: none;
    font-weight: 500;
    color: #4b5563;
}

.language-switch a.active {
    font-weight: 700;
    color: #111827;
    border-bottom: 2px solid #111827;
    padding-bottom: 2px;
}

.error-message {
    margin: 6px 0 0;
    color: #b91c1c;
    font-size: 14px;
}

.error-box {
    margin-top: 18px;
    background: #fee2e2;
    color: #b91c1c;
    padding: 12px 14px;
    border-radius: 8px;
}

.required {
    color: #b91c1c;
    font-weight: bold;
    font-size: larger;
}

.action-links {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.action-links a {
    text-decoration: none;
    font-weight: 600;
}

.action-links a {
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dotted transparent;
}

.action-links a:hover {
    border-bottom: 1px dotted currentColor;
}

button {
    margin-top: 20px;
    padding: 14px 22px;
    border: 0;
    border-radius: 8px;
    background: #111827;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    opacity: 0.92;
}

a {
    color: #111827;
}

@media (max-width: 640px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .card {
        padding: 24px;
    }
}