:root {
    --bg: #f4f4f5;
    --card: #ffffff;
    --text: #18181b;
    --muted: #71717a;
    --accent: #16a34a;
    --error: #dc2626;
    --border: rgba(0, 0, 0, 0.12);
    --border-light: rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    min-height: 100vh;
    line-height: 1.5;
    overflow-x: hidden;
}

main {
    max-width: 56rem;
    margin: 0 auto;
    padding: 1rem 1rem 1.5rem;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
    min-width: 0;
}

@media (min-width: 640px) {
    main {
        padding: 1.5rem;
    }
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 1rem;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.muted {
    color: var(--muted);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    min-height: 44px;
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover:not(:disabled),
.btn-danger:hover:not(:disabled) {
    opacity: 0.9;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--muted);
    margin-bottom: 0.25rem;
}

.form-group input,
.form-group select {
    width: 100%;
    max-width: 100%;
    padding: 0.5rem 0.75rem;
    min-height: 44px;
    background: var(--bg);
    border: 1px solid var(--muted);
    border-radius: 6px;
    color: var(--text);
    font-size: 1rem;
}

.form-group input[type="checkbox"],
.form-group input[type="radio"] {
    width: 1.125rem;
    height: 1.125rem;
    min-height: unset;
    max-width: none;
    padding: 0;
    margin: 0;
    flex-shrink: 0;
    vertical-align: middle;
    accent-color: var(--accent);
}

.form-group label:has(> input[type="checkbox"]),
.form-group label:has(> input[type="radio"]) {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0;
    cursor: pointer;
    color: var(--text);
    font-size: 0.9375rem;
}

.form-group input::placeholder {
    color: var(--muted);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-error {
    font-size: 0.875rem;
    color: var(--error);
    margin-top: 0.25rem;
    margin-bottom: 0.75rem;
}

.form-width-narrow {
    max-width: 24rem;
}