:root {
    --bg: #ffffff;
    --fg: #09090b;
    --muted: #71717a;
    --muted-bg: #f4f4f5;
    --border: #e4e4e7;
    --input: #e4e4e7;
    --ring: #18181b;
    --radius: 0.5rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg);
    color: var(--fg);
    display: flex;
    justify-content: center;
    padding: 60px 20px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 480px;
}

header {
    margin-bottom: 40px;
}

h1 {
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 8px;
}

.description {
    font-size: 0.875rem;
    color: var(--muted);
}

form {
    display: grid;
    gap: 32px;
}

fieldset {
    border: none;
    display: grid;
    gap: 20px;
}

legend {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--fg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.field {
    display: grid;
    gap: 8px;
}

label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--fg);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    background: var(--bg);
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    color: var(--fg);
    transition: all 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 2px rgba(24, 24, 27, 0.1);
}

input:invalid:not(:placeholder-shown) {
    border-color: #ef4444;
}

.hint {
    font-size: 0.75rem;
    color: var(--muted);
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    cursor: pointer;
}

input[type="checkbox"],
input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--fg);
    cursor: pointer;
}

textarea {
    height: 100px;
    resize: none;
}

.file-input-wrapper {
    font-size: 0.875rem;
    color: var(--muted);
    border: 1px dashed var(--border);
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
}

.submit-btn {
    background: var(--fg);
    color: var(--bg);
    border: none;
    padding: 10px 16px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: opacity 0.2s;
    width: 100%;
}

.submit-btn:hover {
    opacity: 0.9;
}

.footer-note {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--muted);
    line-height: 1.4;
}

.grid-cols-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 480px) {
    .grid-cols-2 {
        grid-template-columns: 1fr;
    }
}