/* ============================================================
   SIG Systemkalkulatoren v2 — style.css
   ============================================================ */

/* Variables (overridden by PHP inline styles) */
:root {
  --sksig-primary: #002943;
  --sksig-secondary: #e8450e;
  --sksig-bg: #ffffff;
  --sksig-surface: #f7f7f5;
  --sksig-border: #e0ddd8;
  --sksig-text: #1a1a1a;
  --sksig-text-muted: #6b6b6b;
  --sksig-radius: 6px;
  --sksig-font: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ========== BASE ========== */
.sksig-widget {
  font-family: var(--sksig-font);
  color: var(--sksig-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.sksig-widget *,
.sksig-widget *::before,
.sksig-widget *::after {
  box-sizing: border-box;
}

/* ========== LAYOUT ========== */
.sksig-container {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 24px 0;
}

/* ========== FILTERS PANEL ========== */
.sksig-filters {
  width: 320px;
  min-width: 320px;
  background: var(--sksig-bg);
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
  position: sticky;
  top: 20px;
}

.sksig-filters__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--sksig-border);
}

.sksig-filters__header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sksig-filters__reset {
  background: none;
  border: none;
  color: var(--sksig-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
  font-family: var(--sksig-font);
  transition: opacity 0.15s;
}

.sksig-filters__reset:hover {
  opacity: 0.7;
}

.sksig-filters__body {
  padding: 8px 0;
}

/* ========== FILTER GROUPS ========== */
.sksig-filter-group {
  padding: 16px 24px;
  border-bottom: 1px solid var(--sksig-border);
}

.sksig-filter-group:last-child {
  border-bottom: none;
}

.sksig-filter-group__label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sksig-text-muted);
  margin-bottom: 10px;
}

/* Checkbox rows */
.sksig-filter-group__options {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sksig-check-row {
  display: flex;
  align-items: center;
}

.sksig-checkbox {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.sksig-check-label {
  display: flex;
  align-items: center;
  width: 100%;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 14px;
  transition: background 0.1s;
}

.sksig-check-label:hover {
  background: var(--sksig-surface);
}

.sksig-check-label::before {
  content: "";
  width: 16px;
  height: 16px;
  min-width: 16px;
  border: 2px solid var(--sksig-border);
  border-radius: 3px;
  margin-right: 10px;
  transition: all 0.15s;
}

.sksig-checkbox:checked + .sksig-check-label::before {
  background: var(--sksig-primary);
  border-color: var(--sksig-primary);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

.sksig-check-text {
  flex: 1;
}

.sksig-check-count {
  font-size: 12px;
  color: var(--sksig-text-muted);
  background: var(--sksig-surface);
  padding: 1px 8px;
  border-radius: 10px;
  min-width: 24px;
  text-align: center;
}

/* Select */
.sksig-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
  font-size: 14px;
  font-family: var(--sksig-font);
  color: var(--sksig-text);
  background: var(--sksig-bg);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b6b6b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.sksig-select:focus {
  outline: 2px solid var(--sksig-primary);
  outline-offset: -1px;
}

/* Inputs */
.sksig-input {
  padding: 8px 12px;
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
  font-size: 14px;
  font-family: var(--sksig-font);
  color: var(--sksig-text);
  background: var(--sksig-bg);
  transition: border-color 0.15s;
}

.sksig-input:focus {
  outline: none;
  border-color: var(--sksig-primary);
}

.sksig-input--small {
  width: 80px;
}

/* Range row (acoustic, height) */
.sksig-range-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sksig-range-sep {
  color: var(--sksig-text-muted);
  font-weight: 600;
}

.sksig-range-unit {
  font-size: 13px;
  color: var(--sksig-text-muted);
  font-weight: 600;
}

/* ========== MAIN CONTENT ========== */
.sksig-main {
  flex: 1;
  min-width: 0;
}

/* Toolbar (search + counter) */
.sksig-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.sksig-widget .sksig-search {
  flex: 1;
  max-width: 400px;
  padding-left: 40px !important;
  background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='11' cy='11' r='7' stroke='%236b6b6b' stroke-width='2'/%3E%3Cpath d='M16 16l4 4' stroke='%236b6b6b' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 12px center;
  background-size: 16px 16px;
}

.sksig-counter {
  font-size: 14px;
  color: var(--sksig-text-muted);
  white-space: nowrap;
}

.sksig-counter strong {
  color: var(--sksig-text);
  font-weight: 700;
}

/* Mobile toggle (hidden on desktop) */
.sksig-mobile-filter-toggle {
  display: none;
  width: 100%;
  padding: 12px 16px;
  background: var(--sksig-primary);
  color: #fff;
  border: none;
  border-radius: var(--sksig-radius);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--sksig-font);
  cursor: pointer;
  margin-bottom: 16px;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.sksig-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--sksig-secondary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

/* ========== TABLE ========== */
.sksig-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
}

.sksig-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.sksig-th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sksig-text-muted);
  background: var(--sksig-surface);
  border-bottom: 2px solid var(--sksig-border);
  white-space: nowrap;
  user-select: none;
  position: relative;
}

.sksig-th--sortable {
  cursor: pointer;
  padding-right: 28px;
}

.sksig-th--sortable:hover {
  color: var(--sksig-text);
}

.sksig-th--sortable::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  opacity: 0.25;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M7 2L4 6h6L7 2zM7 12l3-4H4l3 4z' fill='%231a1a1a'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.sksig-th--asc::after {
  opacity: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M7 2L4 6h6L7 2z' fill='%23002943'/%3E%3C/svg%3E");
}

.sksig-th--desc::after {
  opacity: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 14 14' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M7 12l3-4H4l3 4z' fill='%23002943'/%3E%3C/svg%3E");
}

.sksig-td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--sksig-border);
  vertical-align: middle;
}

.sksig-td--name {
  font-weight: 600;
  color: var(--sksig-primary);
}

.sksig-row {
  cursor: pointer;
  transition: background 0.1s;
}

.sksig-row:hover {
  background: #f0f5f9;
}

.sksig-row:last-child .sksig-td {
  border-bottom: none;
}

.sksig-empty {
  text-align: center;
  padding: 40px 16px;
  color: var(--sksig-text-muted);
  font-size: 15px;
}

/* ========== PAGINATION ========== */
.sksig-pag-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
}

.sksig-pag-btn {
  padding: 8px 20px;
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
  background: var(--sksig-bg);
  font-size: 13px;
  font-weight: 600;
  font-family: var(--sksig-font);
  color: var(--sksig-primary);
  cursor: pointer;
  transition: all 0.15s;
}

.sksig-pag-btn:hover:not(:disabled) {
  background: var(--sksig-surface);
  border-color: var(--sksig-primary);
}

.sksig-pag-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.sksig-pag-info {
  font-size: 13px;
  color: var(--sksig-text-muted);
  font-weight: 600;
}

/* ========== DETAIL VIEW ========== */
.sksig-view--detail {
  animation: sksig-fadeIn 0.2s ease;
}

@keyframes sksig-fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sksig-back-btn {
  background: none;
  border: none;
  color: var(--sksig-primary);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--sksig-font);
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: 16px;
  transition: opacity 0.15s;
}

.sksig-back-btn:hover {
  opacity: 0.7;
}

.sksig-detail {
  background: var(--sksig-bg);
  border: 1px solid var(--sksig-border);
  border-radius: var(--sksig-radius);
  padding: 32px;
}

.sksig-detail__title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 24px 0;
  color: var(--sksig-primary);
  line-height: 1.3;
}

.sksig-detail__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.sksig-detail__field {
  display: flex;
  flex-direction: column;
  padding: 12px 0;
  border-bottom: 1px solid var(--sksig-border);
}

.sksig-detail__field:nth-child(odd) {
  padding-right: 24px;
}

.sksig-detail__field:nth-child(even) {
  padding-left: 24px;
  border-left: 1px solid var(--sksig-border);
}

.sksig-detail__label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sksig-text-muted);
  margin-bottom: 2px;
}

.sksig-detail__value {
  font-size: 15px;
  font-weight: 500;
}

/* ========== BUTTONS ========== */
.sksig-btn {
  display: inline-block;
  padding: 12px 28px;
  border: none;
  border-radius: var(--sksig-radius);
  font-size: 14px;
  font-weight: 700;
  font-family: var(--sksig-font);
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 24px;
}

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

.sksig-btn--primary:hover {
  filter: brightness(1.1);
  color: #fff;
  text-decoration: none;
}

/* ========== ERROR ========== */
.sksig-error {
  color: var(--sksig-secondary);
  font-weight: 600;
  text-align: center;
  padding: 40px 20px;
}

/* ========== RESPONSIVE ========== */

/* Tablet ≤ 992px */
@media (max-width: 992px) {
  .sksig-container {
    flex-direction: column;
  }

  .sksig-filters {
    width: 100%;
    min-width: auto;
    position: static;
    display: none;
  }

  .sksig-filters--open {
    display: block;
  }

  .sksig-mobile-filter-toggle {
    display: flex;
  }

  .sksig-detail__grid {
    grid-template-columns: 1fr;
  }

  .sksig-detail__field:nth-child(odd) {
    padding-right: 0;
  }

  .sksig-detail__field:nth-child(even) {
    padding-left: 0;
    border-left: none;
  }
}

/* Mobile ≤ 576px */
@media (max-width: 576px) {
  .sksig-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .sksig-search {
    max-width: 100%;
  }

  .sksig-counter {
    text-align: center;
  }

  .sksig-th,
  .sksig-td {
    padding: 10px 10px;
    font-size: 12px;
  }

  .sksig-detail {
    padding: 20px 16px;
  }

  .sksig-detail__title {
    font-size: 17px;
  }
}