.tool-header .page-title {
    max-width: 7ch;
}

.workbench {
    display: grid;
    gap: 22px;
    max-width: 680px;
    padding: clamp(24px, 5vw, 40px);
}

.cnpj-field {
    position: relative;
    display: grid;
    gap: 10px;
}

.cnpj-field label {
    color: var(--muted);
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

#cnpj-input {
    width: 100%;
    min-height: 72px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    color: var(--text);
    background: var(--surface-strong);
    font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
    font-size: clamp(1.35rem, 5vw, 1.9rem);
    letter-spacing: 0.02em;
    line-height: 1.2;
    text-align: center;
    text-transform: uppercase;
    outline: 0;
    transition:
        border-color 160ms ease,
        box-shadow 160ms ease;
}

#cnpj-input::placeholder {
    color: var(--quiet);
    text-transform: none;
}

#cnpj-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--focus);
}


.segmented-control {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 4px;
    padding: 4px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-strong);
}

.segmented-button {
    min-height: 40px;
    padding: 8px 12px;
    border: 0;
    border-radius: 999px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
    font-size: 0.84rem;
    font-weight: 700;
    line-height: 1;
    transition:
        background 160ms ease,
        color 160ms ease;
}

.segmented-button[aria-checked="true"] {
    color: var(--text);
    background: var(--surface-strong);
    box-shadow: inset 0 0 0 1px var(--line-strong);
}

.segmented-button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.actions-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

#generate-button {
    justify-self: stretch;
}

.button {
    min-height: 48px;
    padding: 10px 18px;
    font-size: 0.86rem;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.status-badge::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.status-badge.is-valid {
    color: #2d6a4f;
    background: rgba(45, 106, 79, 0.12);
}

.status-badge.is-valid::before {
    background: #2d6a4f;
}

.status-badge.is-invalid {
    color: #9c2b2b;
    background: rgba(156, 43, 43, 0.12);
}

.status-badge.is-invalid::before {
    background: #9c2b2b;
}

.status-badge.is-empty {
    color: var(--quiet);
    background: transparent;
}

.status-badge.is-empty::before {
    display: none;
}

#status-badge {
    position: absolute;
    top: -10px;
    right: 12px;
    z-index: 1;
}

.quick-guide {
    max-width: 680px;
    padding: clamp(64px, 10vw, 116px) 0 12px;
}

.quick-guide h2 {
    max-width: 14ch;
    margin: 0 0 30px;
}

.quick-guide p {
    margin: 0 0 18px;
    color: var(--muted);
    font-size: 0.94rem;
    line-height: 1.6;
}

.quick-guide a {
    color: var(--accent-strong);
    text-underline-offset: 3px;
}

.quick-guide a:hover,
.quick-guide a:focus-visible {
    text-decoration: none;
}

.disclaimer {
    padding: 18px;
    border-left: 3px solid var(--accent);
    border-radius: 0 10px 10px 0;
    background: var(--accent-soft);
}

.disclaimer p {
    margin: 0;
    color: var(--text);
    font-size: 0.86rem;
}

@media (min-width: 621px) {
    .actions-row {
        grid-template-columns: auto auto 1fr;
    }

    #generate-button {
        justify-self: end;
    }

    #cnpj-input {
        min-height: 84px;
    }
}

@media (prefers-color-scheme: dark) {
    .status-badge.is-valid {
        color: #95d5b2;
        background: rgba(149, 213, 178, 0.12);
    }

    .status-badge.is-valid::before {
        background: #95d5b2;
    }

    .status-badge.is-invalid {
        color: #ffadad;
        background: rgba(255, 173, 173, 0.12);
    }

    .status-badge.is-invalid::before {
        background: #ffadad;
    }
}