/* =============================================================
 * kof-offerte.css — styles scoped to the offerte/factuur builder.
 *
 * Layout: split view.
 *   - Left:  steps navigation (sticky top) + scrollable form
 *   - Right: sticky PDF preview frame (iframe)
 *
 * On mobile: stack — preview goes to bottom of page as a collapsible.
 *
 * Sections:
 *   1. Builder layout (split, sticky panels, header bar)
 *   2. Steps navigation
 *   3. Form sections (klant, planning, items, extras, totalen)
 *   4. Line items table (qty × price = line total)
 *   5. Plaatser chips with conflict highlighting
 *   6. PDF preview frame
 *   7. Save bar (sticky footer with action buttons)
 *
 * All selectors scoped under `.kof-root`.
 * ============================================================= */

/* ---------- 1. Builder layout ---------- */
.kof-root .kof-offerte {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 480px;
    gap: var(--kof-space-5);
    align-items: start;
}
@media (max-width: 1100px) {
    .kof-root .kof-offerte {
        grid-template-columns: 1fr;
    }
    .kof-root .kof-offerte__preview {
        position: static !important;
        margin-top: var(--kof-space-5);
    }
}
.kof-root .kof-offerte__form {
    min-width: 0;
}
.kof-root .kof-offerte__preview {
    position: sticky;
    top: var(--kof-space-5);
}

/* Top header bar */
.kof-root .kof-offerte__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--kof-space-3);
    padding: var(--kof-space-4) 0;
    margin-bottom: var(--kof-space-4);
    border-bottom: 0.5px solid var(--kof-color-border);
}
.kof-root .kof-offerte__title-block {
    display: flex;
    flex-direction: column;
    gap: var(--kof-space-1);
}
.kof-root .kof-offerte__doc-number {
    font-size: var(--kof-font-size-h2);
    font-weight: var(--kof-font-weight-semi);
    color: var(--kof-color-ink);
}
.kof-root .kof-offerte__doc-meta {
    font-size: var(--kof-font-size-sm);
    color: var(--kof-color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: var(--kof-space-2);
}

/* ---------- 2. Steps navigation ---------- */
.kof-root .kof-steps {
    display: flex;
    flex-wrap: wrap;
    gap: var(--kof-space-1);
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: var(--kof-radius-md);
    padding: var(--kof-space-1);
    margin-bottom: var(--kof-space-4);
    position: sticky;
    top: var(--kof-space-2);
    z-index: 5;
}
.kof-root .kof-steps__btn {
    appearance: none;
    background: transparent;
    border: 0;
    padding: var(--kof-space-2) var(--kof-space-4);
    border-radius: var(--kof-radius-sm);
    font: inherit;
    font-size: var(--kof-font-size-sm);
    color: var(--kof-color-text-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--kof-space-2);
    transition: background 0.12s ease, color 0.12s ease;
}
.kof-root .kof-steps__btn:hover {
    background: var(--kof-color-surface-sub);
    color: var(--kof-color-ink);
}
.kof-root .kof-steps__btn--active {
    background: var(--kof-color-ink);
    color: var(--kof-color-surface);
}
.kof-root .kof-steps__btn--active:hover {
    background: var(--kof-color-ink);
    color: var(--kof-color-surface);
}
.kof-root .kof-steps__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: var(--kof-color-surface-sub);
    color: var(--kof-color-text-muted);
    font-size: var(--kof-font-size-xs);
    font-weight: var(--kof-font-weight-semi);
}
.kof-root .kof-steps__btn--active .kof-steps__num {
    background: var(--kof-color-surface);
    color: var(--kof-color-ink);
}

/* ---------- 3. Form sections ---------- */
.kof-root .kof-section {
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: var(--kof-radius-md);
    padding: var(--kof-space-5);
    margin-bottom: var(--kof-space-4);
}
.kof-root .kof-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--kof-space-3);
    margin-bottom: var(--kof-space-4);
}
.kof-root .kof-section__title {
    font-size: var(--kof-font-size-h3);
    font-weight: var(--kof-font-weight-semi);
    color: var(--kof-color-ink);
}
.kof-root .kof-section__hint {
    font-size: var(--kof-font-size-sm);
    color: var(--kof-color-text-muted);
}
.kof-root .kof-section__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--kof-space-3);
    margin-bottom: var(--kof-space-3);
}
.kof-root .kof-section__row--3 {
    grid-template-columns: 1fr 1fr 1fr;
}
.kof-root .kof-section__row--single {
    grid-template-columns: 1fr;
}
@media (max-width: 720px) {
    .kof-root .kof-section__row,
    .kof-root .kof-section__row--3 {
        grid-template-columns: 1fr;
    }
}

/* ---------- 4. Line items grid ---------- */
.kof-root .kof-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.kof-root .kof-items__category {
    border: 0.5px solid var(--kof-color-border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--kof-color-surface);
}
.kof-root .kof-items__cat-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 0.875rem;
    background: var(--kof-color-surface-sub);
    border-bottom: 0.5px solid var(--kof-color-border);
}
.kof-root .kof-items__cat-name {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
    color: var(--kof-color-text-muted);
}
.kof-root .kof-items__row {
    display: grid;
    grid-template-columns:
        minmax(140px, 1.4fr)   /* type/omschrijving */
        minmax(100px, 1fr)     /* artnr */
        minmax(120px, 1fr)     /* qty + suffix */
        minmax(120px, 1fr)     /* price + suffix */
        110px                   /* line total */
        32px;                   /* remove */
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    align-items: center;
    border-top: 0.5px solid var(--kof-color-border);
}
.kof-root .kof-items__row--with-color {
    grid-template-columns:
        minmax(140px, 1.4fr)
        minmax(100px, 1fr)
        minmax(110px, 1fr)     /* color */
        minmax(120px, 1fr)
        minmax(120px, 1fr)
        110px
        32px;
}
.kof-root .kof-items__row:first-child {
    border-top: 0;
}
.kof-root .kof-items__row input,
.kof-root .kof-items__row select {
    width: 100%;
    padding: 0.4375rem 0.625rem;
    border: 0.5px solid var(--kof-color-border);
    border-radius: 6px;
    font: inherit;
    font-size: 0.875rem;
    background: var(--kof-color-surface);
    color: var(--kof-color-ink);
}
.kof-root .kof-items__row input:focus,
.kof-root .kof-items__row select:focus {
    outline: 0;
    border-color: var(--kof-color-ink);
}
.kof-root .kof-items__line-total {
    text-align: right;
    font-weight: 600;
    color: var(--kof-color-ink);
    padding: 0.5rem 0.25rem;
    font-variant-numeric: tabular-nums;
}
.kof-root .kof-items__remove {
    appearance: none;
    background: transparent;
    border: 0;
    color: var(--kof-color-text-muted);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
}
.kof-root .kof-items__remove:hover {
    background: rgba(220, 38, 38, 0.08);
    color: #DC2626;
}
.kof-root .kof-items__add {
    appearance: none;
    background: transparent;
    border: 0;
    border-top: 0.5px dashed var(--kof-color-border);
    padding: 0.625rem 0.875rem;
    font: inherit;
    font-size: 0.8125rem;
    color: var(--kof-color-text-muted);
    cursor: pointer;
    text-align: left;
    width: 100%;
}
.kof-root .kof-items__add:hover {
    background: var(--kof-color-surface-sub);
    color: var(--kof-color-ink);
}
@media (max-width: 900px) {
    .kof-root .kof-items__row,
    .kof-root .kof-items__row--with-color {
        grid-template-columns: 1fr 1fr;
    }
}

/* ---------- 5. Plaatser chips ---------- */
.kof-root .kof-pchips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--kof-space-2);
}
.kof-root .kof-pchip {
    appearance: none;
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: 999px;
    padding: var(--kof-space-1) var(--kof-space-3);
    font: inherit;
    font-size: var(--kof-font-size-sm);
    color: var(--kof-color-ink);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--kof-space-2);
    transition: background 0.12s ease, border-color 0.12s ease;
}
.kof-root .kof-pchip:hover {
    background: var(--kof-color-surface-sub);
}
.kof-root .kof-pchip--selected {
    background: var(--kof-color-ink);
    color: var(--kof-color-surface);
    border-color: var(--kof-color-ink);
}
.kof-root .kof-pchip--conflict {
    border-color: #DC2626;
    color: #DC2626;
    background: rgba(220, 38, 38, 0.05);
}
.kof-root .kof-pchip--selected.kof-pchip--conflict {
    background: #DC2626;
    color: var(--kof-color-surface);
}
.kof-root .kof-pchip__dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--kof-color-text-muted);
}

.kof-root .kof-conflict-alert {
    margin-top: var(--kof-space-3);
    padding: var(--kof-space-3);
    background: rgba(220, 38, 38, 0.08);
    border: 0.5px solid #DC2626;
    border-radius: var(--kof-radius-sm);
    font-size: var(--kof-font-size-sm);
    color: #B91C1C;
}
.kof-root .kof-conflict-alert strong {
    display: block;
    margin-bottom: var(--kof-space-1);
}
.kof-root .kof-conflict-alert ul {
    margin: 0;
    padding-left: var(--kof-space-4);
}

/* ---------- 6. PDF preview ---------- */
.kof-root .kof-preview {
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: var(--kof-radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.kof-root .kof-preview__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--kof-space-3) var(--kof-space-4);
    border-bottom: 0.5px solid var(--kof-color-border);
}
.kof-root .kof-preview__title {
    font-size: var(--kof-font-size-sm);
    font-weight: var(--kof-font-weight-semi);
    color: var(--kof-color-ink);
}
.kof-root .kof-preview__actions {
    display: inline-flex;
    gap: var(--kof-space-2);
}
.kof-root .kof-preview__frame {
    width: 100%;
    height: 640px;
    border: 0;
    background: #F4F4F4;
}
.kof-root .kof-preview__empty {
    padding: var(--kof-space-6);
    text-align: center;
    color: var(--kof-color-text-muted);
    font-size: var(--kof-font-size-sm);
    background: #F8F8F8;
    height: 640px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Summary card under preview frame */
.kof-root .kof-summary {
    padding: var(--kof-space-4);
    border-top: 0.5px solid var(--kof-color-border);
    display: flex;
    flex-direction: column;
    gap: var(--kof-space-1);
    font-size: var(--kof-font-size-sm);
}
.kof-root .kof-summary__row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.kof-root .kof-summary__row--sum {
    font-weight: var(--kof-font-weight-semi);
    color: var(--kof-color-ink);
    border-top: 0.5px solid var(--kof-color-border);
    margin-top: var(--kof-space-2);
    padding-top: var(--kof-space-2);
}
.kof-root .kof-summary__row--balance {
    color: var(--kof-color-brand);
    font-weight: var(--kof-font-weight-semi);
}
.kof-root .kof-summary__label {
    color: var(--kof-color-text-muted);
}

/* ---------- 7. Save bar ---------- */
.kof-root .kof-savebar {
    position: sticky;
    bottom: 0;
    z-index: 10;
    margin: 1.5rem 0 0;
    padding: 0.875rem 1.25rem;
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}
.kof-root .kof-savebar__left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8125rem;
    color: var(--kof-color-text-muted);
}
.kof-root .kof-savebar__actions {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
}

/* "Versturen" — the primary send action.
 * Uses the brand red and modern padding shorthand. */
.kof-root .kof-btn-send {
    appearance: none;
    border: 0;
    background: var(--kof-color-brand);
    color: white;
    font: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.15s ease, transform 0.05s ease;
}
.kof-root .kof-btn-send:hover {
    background: #C73E1F;
}
.kof-root .kof-btn-send:active {
    transform: scale(0.98);
}
.kof-root .kof-btn-send:disabled,
.kof-root .kof-btn-send.kof-btn--disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* "Opslaan" — neutral secondary */
.kof-root .kof-btn-save {
    appearance: none;
    border: 0.5px solid var(--kof-color-border);
    background: var(--kof-color-surface);
    color: var(--kof-color-ink);
    font: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.625rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease;
}
.kof-root .kof-btn-save:hover {
    background: var(--kof-color-surface-sub);
}
.kof-root .kof-btn-save.kof-btn--disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* "Annuleren" — text-only ghost */
.kof-root .kof-btn-cancel {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--kof-color-text-muted);
    font: inherit;
    font-size: 0.875rem;
    padding: 0.625rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
}
.kof-root .kof-btn-cancel:hover {
    color: var(--kof-color-ink);
    background: var(--kof-color-surface-sub);
}

/* ---------- Suffix input — number left, unit label right ---------- */
.kof-root .kof-suffix-input {
    position: relative;
    display: flex;
    align-items: stretch;
    width: 100%;
}
.kof-root .kof-suffix-input input {
    flex: 1 1 auto;
    width: 100%;
    padding: 0.5rem 3.25rem 0.5rem 0.625rem;
    border: 0.5px solid var(--kof-color-border);
    border-radius: 6px;
    font: inherit;
    font-size: 0.875rem;
    background: var(--kof-color-surface);
    color: var(--kof-color-ink);
    text-align: left;
    font-variant-numeric: tabular-nums;
}
.kof-root .kof-suffix-input input:focus {
    outline: 0;
    border-color: var(--kof-color-ink);
}
.kof-root .kof-suffix-input__suffix {
    position: absolute;
    right: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--kof-color-text-muted);
    font-size: 0.8125rem;
    pointer-events: none;
    user-select: none;
}

/* ---------- Combobox (customer search) ---------- */
.kof-root .kof-combo {
    position: relative;
}
.kof-root .kof-combo__menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--kof-color-surface);
    border: 0.5px solid var(--kof-color-border);
    border-radius: var(--kof-radius-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    z-index: 20;
    max-height: 280px;
    overflow-y: auto;
}
.kof-root .kof-combo__option {
    padding: var(--kof-space-2) var(--kof-space-3);
    cursor: pointer;
    font-size: var(--kof-font-size-sm);
    border-bottom: 0.5px solid var(--kof-color-border);
}
.kof-root .kof-combo__option:last-child {
    border-bottom: 0;
}
.kof-root .kof-combo__option:hover,
.kof-root .kof-combo__option--active {
    background: var(--kof-color-surface-sub);
}
.kof-root .kof-combo__option-name {
    color: var(--kof-color-ink);
    font-weight: var(--kof-font-weight-semi);
}
.kof-root .kof-combo__option-meta {
    color: var(--kof-color-text-muted);
    font-size: var(--kof-font-size-xs);
    margin-top: 2px;
}

/* ---------- Confirm dialog ---------- */
.kof-root .kof-confirm__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}
.kof-root .kof-confirm__box {
    background: var(--kof-color-surface);
    border-radius: var(--kof-radius-md);
    padding: var(--kof-space-5);
    max-width: 480px;
    width: 90%;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.2);
}
.kof-root .kof-confirm__title {
    font-size: var(--kof-font-size-h3);
    font-weight: var(--kof-font-weight-semi);
    color: var(--kof-color-ink);
    margin-bottom: var(--kof-space-3);
}
.kof-root .kof-confirm__body {
    font-size: var(--kof-font-size-sm);
    color: var(--kof-color-text);
    margin-bottom: var(--kof-space-4);
}
.kof-root .kof-confirm__actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--kof-space-2);
}