.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 2rem; }
.form-group.full-width { grid-column: 1 / -1; }

fieldset.form-group { border: 0; padding: 0; margin: 0; min-width: 0; }
fieldset.form-group legend.form-label { float: none; width: auto; }

.form-label {
    font-size: 0.8rem; font-weight: 600; letter-spacing: 0.01em;
    color: var(--text-2); margin-bottom: 0.45rem; display: block;
}
.required-indicator { color: var(--danger); margin-left: 2px; }

input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),
select, textarea {
    width: 100%; padding: 0.6rem 0.9rem; border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: 0.875rem; line-height: 1.45;
    color: var(--text-1); caret-color: var(--primary); background: var(--surface);
    transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
    font-family: inherit;
}
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):not(:disabled):hover,
select:not(:disabled):hover, textarea:not(:disabled):hover { border-color: var(--border-strong); }
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):focus,
select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 14%, transparent);
    background-color: var(--surface); outline: none;
}
input::placeholder, textarea::placeholder { color: var(--text-3); opacity: 0.75; }
input:disabled, select:disabled, textarea:disabled { opacity: 0.6; cursor: not-allowed; }
input[readonly], textarea[readonly] { background: var(--bg-subtle); }
textarea { resize: vertical; min-height: 110px; }

/* Quiet textarea (invoice notes) — mirrors the standard field look */
.form-control-quiet {
    width: 100%; padding: 0.6rem 0.9rem; border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: 0.875rem; line-height: 1.45;
    color: var(--text-1); caret-color: var(--primary); background: var(--surface);
    transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
    font-family: inherit;
}
.form-control-quiet:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 14%, transparent);
    outline: none;
}

select:not([multiple]):not([size]) {
    appearance: none; padding-right: 2.3rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1.5 1.75 6 6.25l4.5-4.5' fill='none' stroke='%236b7280' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 0.9rem center;
}
input[type="checkbox"], input[type="radio"] { accent-color: var(--primary); cursor: pointer; }

.form-help { font-size: 0.75rem; color: var(--text-3); margin-top: 0.4rem; line-height: 1.45; }
.form-error { font-size: 0.75rem; color: var(--danger); margin-top: 0.4rem; font-weight: 600; }
input.is-invalid, select.is-invalid, textarea.is-invalid { border-color: var(--danger); }

/* Top-level error summary (links to offending fields) */
.form-error-summary {
    font-size: 0.8rem; color: var(--danger); background: var(--danger-bg);
    border: 1px solid color-mix(in srgb, var(--danger) 20%, transparent);
    padding: 0.75rem 1rem; border-radius: var(--radius-sm); margin-bottom: 1.5rem;
    line-height: 1.5;
}
.form-error-summary ul { margin-top: 0.4rem; padding-left: 1.15rem; margin-bottom: 0; }
.form-error-summary li { margin-top: 0.15rem; }
.form-error-summary a { color: var(--danger); font-weight: 600; text-decoration: underline; }

/* Form sections (grouped fields) */
.form-section { margin-top: 2.25rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.form-section:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.form-section-title {
    font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--text-3); margin-bottom: 1.25rem;
    display: flex; align-items: center; gap: 0.5rem;
}

.form-actions {
    display: flex; align-items: center; gap: 0.75rem;
    margin-top: 2.25rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .form-grid { grid-template-columns: 1fr; gap: 1.25rem; }
    .form-actions { flex-direction: column; align-items: stretch; }
}