/* ─── Header ─── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(7, 8, 12, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-gold);
}

.app-header__inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}

.app-logo {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 17px;
  color: var(--gold-mid);
  letter-spacing: 0.06em;
  white-space: nowrap;
  cursor: pointer;
}

.app-logo span {
  color: var(--text-dim);
  font-family: var(--font-ui);
  font-size: 11px;
  letter-spacing: 0.08em;
  margin-left: 10px;
  font-weight: 500;
}

.role-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.role-badge__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--role-accent);
  box-shadow: 0 0 8px var(--role-accent);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  margin-left: 12px;
}

.header-nav a,
.header-nav button.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.header-nav a:hover,
.header-nav a.active,
.header-nav button.nav-link:hover,
.header-nav button.nav-link.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.role-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
}

.role-switcher__btn {
  padding: 6px 10px;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.role-switcher__btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.role-switcher__btn.active {
  color: var(--text-bright);
  background: color-mix(in srgb, var(--role-accent) 22%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--role-accent) 35%, transparent);
}

.role-switcher__btn[data-switch-role="buyer"].active { --role-accent: var(--blue-lt); }
.role-switcher__btn[data-switch-role="seller"].active { --role-accent: var(--green); }
.role-switcher__btn[data-switch-role="operator"].active { --role-accent: var(--amber); }

.demo-guide-btn {
  margin-top: 20px;
  font-size: 13px;
  color: var(--gold-mid);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.demo-guide-steps {
  text-align: left;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}

.demo-guide-steps ol {
  padding-left: 20px;
  margin: 12px 0;
}

.demo-guide-steps li {
  margin-bottom: 8px;
}

.demo-guide-steps strong {
  color: var(--text);
}

.demo-guide-tip {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--gold-faint);
  border: 1px solid var(--border-gold);
  font-size: 12px;
  color: var(--text-dim);
}

.demo-guide-tip strong {
  color: var(--gold-mid);
}

.cart-badge {
  position: relative;
}

.cart-badge__count {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--blue-lt);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: grid;
  place-items: center;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, var(--gold-mid), var(--gold));
  color: #0a0d17;
  box-shadow: 0 4px 16px rgba(184, 150, 58, 0.25);
}

.btn--primary:hover {
  box-shadow: 0 6px 24px rgba(184, 150, 58, 0.35);
}

.btn--role {
  background: color-mix(in srgb, var(--role-accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--role-accent) 40%, transparent);
  color: var(--text-bright);
}

.btn--role:hover {
  background: color-mix(in srgb, var(--role-accent) 28%, transparent);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn--sm {
  padding: 7px 14px;
  font-size: 12px;
}

.btn--lg {
  padding: 14px 28px;
  font-size: 14px;
}

.btn:disabled,
.btn--disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

/* ─── Layout ─── */
.page {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.page-header {
  margin-bottom: 32px;
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold-mid);
  margin-bottom: 10px;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 38px);
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1.15;
  margin-bottom: 8px;
}

.page-sub {
  font-size: 15px;
  color: var(--text-dim);
  max-width: 560px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-3 { grid-template-columns: 1fr; }
  .header-nav { display: none; }
}

/* ─── Cards ─── */
.card {
  background: linear-gradient(158deg, rgba(26, 48, 88, 0.6) 0%, rgba(15, 26, 46, 0.8) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.card--flat {
  background: rgba(15, 26, 46, 0.5);
}

.card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 16px;
}

/* ─── Status chips ─── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.chip--blue { background: rgba(59, 130, 246, 0.15); color: #93c5fd; }
.chip--green { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
.chip--amber { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.chip--purple { background: rgba(139, 92, 246, 0.15); color: #c4b5fd; }
.chip--dim { background: rgba(255, 255, 255, 0.06); color: var(--text-dim); }

.chip--phase2 {
  background: repeating-linear-gradient(
    -45deg,
    rgba(139, 92, 246, 0.12),
    rgba(139, 92, 246, 0.12) 4px,
    rgba(139, 92, 246, 0.06) 4px,
    rgba(139, 92, 246, 0.06) 8px
  );
  color: #c4b5fd;
  border: 1px dashed rgba(139, 92, 246, 0.35);
}

/* ─── Tables ─── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
  background: rgba(0, 0, 0, 0.2);
}

.data-table tbody tr {
  cursor: pointer;
  transition: background 0.15s;
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* ─── Forms ─── */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--gold-soft);
  box-shadow: 0 0 0 3px var(--gold-faint);
}

.form-textarea {
  min-height: 88px;
  resize: vertical;
}

/* ─── Timeline (7 phases) ─── */
.order-timeline {
  display: flex;
  gap: 0;
  margin-bottom: 28px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.timeline-step {
  flex: 1;
  min-width: 90px;
  text-align: center;
  position: relative;
}

.timeline-step::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  width: 100%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.timeline-step:last-child::after {
  display: none;
}

.timeline-step__dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  margin: 0 auto 10px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid var(--border);
  position: relative;
  z-index: 1;
  transition: all 0.3s;
}

.timeline-step.done .timeline-step__dot {
  background: color-mix(in srgb, var(--role-accent) 25%, transparent);
  border-color: var(--role-accent);
  color: var(--role-accent);
}

.timeline-step.active .timeline-step__dot {
  background: var(--role-accent);
  border-color: var(--role-accent);
  color: #0a0d17;
  box-shadow: 0 0 16px color-mix(in srgb, var(--role-accent) 50%, transparent);
}

.timeline-step__label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-dim);
  line-height: 1.3;
  padding: 0 4px;
}

.timeline-step.done .timeline-step__label,
.timeline-step.active .timeline-step__label {
  color: var(--text);
}

/* ─── Product grid ─── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.product-card {
  background: linear-gradient(160deg, rgba(26, 48, 88, 0.5), rgba(15, 26, 46, 0.7));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.product-card__img {
  height: 160px;
  display: grid;
  place-items: center;
  font-size: 48px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(184, 150, 58, 0.08));
}

.product-card__body {
  padding: 18px;
}

.product-card__cat {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-mid);
  margin-bottom: 6px;
}

.product-card__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
  line-height: 1.35;
}

.product-card__sku {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-card__price {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-bright);
}

.product-card__price small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-dim);
}

/* ─── KPI cards ─── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

@media (max-width: 900px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

.kpi-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(15, 26, 46, 0.5);
}

.kpi-card__val {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 500;
  color: var(--text-bright);
  line-height: 1;
  margin-bottom: 6px;
}

.kpi-card__label {
  font-size: 12px;
  color: var(--text-dim);
}

/* ─── Money breakdown ─── */
.money-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.money-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 14px;
}

.money-row--total {
  border-top: 1px solid var(--border-gold);
  padding-top: 16px;
  margin-top: 8px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text-bright);
}

.money-row--accent {
  color: var(--gold-mid);
}

.money-row--muted {
  color: var(--text-dim);
  font-size: 13px;
}

/* ─── Modal ─── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: linear-gradient(158deg, #141a28, #0a0d17);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: 0 60px 120px rgba(0, 0, 0, 0.65);
  animation: slideUp 0.25s ease;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.modal__sub {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.modal__actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Toast ─── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: 12px;
  background: rgba(20, 26, 40, 0.95);
  border: 1px solid var(--border-gold);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-card);
  animation: slideUp 0.3s ease;
  max-width: 360px;
}

/* ─── Dev panel ─── */
.dev-panel {
  position: fixed;
  bottom: 16px;
  left: 16px;
  z-index: 150;
}

.dev-panel__toggle {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(139, 92, 246, 0.2);
  border: 1px solid rgba(139, 92, 246, 0.4);
  color: #c4b5fd;
  cursor: pointer;
}

.dev-panel__body {
  display: none;
  margin-top: 10px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(10, 13, 23, 0.95);
  border: 1px solid rgba(139, 92, 246, 0.3);
  width: 280px;
  font-size: 12px;
}

.dev-panel.open .dev-panel__body {
  display: block;
}

.dev-panel__body label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-dim);
}

.dev-panel__body select,
.dev-panel__body button {
  width: 100%;
  margin-bottom: 12px;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  cursor: pointer;
}

/* ─── Empty state ─── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-dim);
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

/* ─── Document list ─── */
.doc-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.doc-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
}

.doc-item__icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 18px;
  background: rgba(52, 211, 153, 0.12);
}

.doc-item__info {
  flex: 1;
}

.doc-item__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-bright);
}

.doc-item__meta {
  font-size: 12px;
  color: var(--text-dim);
}

/* ─── Counterparty banner ─── */
.counterparty-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: var(--gold-faint);
  border: 1px solid var(--border-gold);
  margin-bottom: 24px;
  font-size: 13px;
}

.counterparty-banner strong {
  color: var(--gold-mid);
}