/* ============================================================
 * VNSTOCK — assets/css/shell.css
 * Khung sườn MỚI cho toàn bộ site: sidebar + top bar + status
 * footer + các component trạng thái (skeleton/empty/error/chip).
 *
 * Dùng CHUNG bộ biến màu :root khai báo trong style.css (file này
 * luôn được load kèm style.css nên không khai báo lại biến).
 * Đây là phần "vỏ" mới dựng bằng tiện ích Tailwind + class .vs-*
 * ở đây; toàn bộ nội dung dữ liệu bên trong (card/bảng/badge cũ)
 * vẫn dùng class của style.css, không đụng vào.
 * ============================================================ */

/* ---------- Shell layout ---------- */
.vs-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.vs-shell-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.vs-content {
  flex: 1;
  padding: 1.25rem 1.5rem 2rem;
  max-width: 1500px;
  width: 100%;
  margin: 0 auto;
}

/* ---------- Sidebar (Mobile Drawer) ---------- */
.vs-sidebar {
  width: 232px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--surface) 0%, var(--surface-head) 100%);
  border-right: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  height: 100vh;
  z-index: 50;
  transition: transform var(--motion-medium);
}

@media (min-width: 1024px) {
  .vs-sidebar {
    display: none !important;
  }
}

.vs-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.1rem 1.15rem;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
  border-bottom: 1px solid var(--border-soft);
  flex-shrink: 0;
}

.vs-sidebar-brand .vs-brand-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(var(--primary-rgb), 0.6);
  flex-shrink: 0;
}

.vs-sidebar-nav {
  flex: 1;
  padding: 0.85rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  overflow-y: auto;
}

.vs-sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none !important;
  transition: background-color var(--motion-fast), color var(--motion-fast);
}

.vs-sidebar-link svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.vs-sidebar-link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.vs-sidebar-link.is-active {
  background: var(--primary-soft);
  color: var(--accent-text);
  box-shadow: inset 0 0 0 1px var(--border-medium);
}

.vs-sidebar-link.is-active svg {
  color: var(--accent-text);
}

.vs-sidebar-foot {
  padding: 0.85rem 1.15rem;
  font-size: 0.68rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-soft);
  flex-shrink: 0;
}

/* ---------- Sidebar — mobile drawer ---------- */
.vs-sidebar-overlay {
  display: none;
}

@media (max-width: 1023px) {
  .vs-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
  }
  .vs-shell > .vs-sidebar:not(.is-open) {
    transform: translate3d(-100%, 0, 0) !important;
  }
  .vs-shell > .vs-sidebar.is-open {
    transform: translate3d(0, 0, 0) !important;
  }
  .vs-sidebar.is-open {
    box-shadow: 8px 0 32px rgba(3, 8, 10, 0.55);
  }
  .vs-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(3, 8, 10, 0.6);
    z-index: 49;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-fast);
  }
  .vs-sidebar-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }
}

/* ---------- Top bar (Sticky Horizontal Top Navigation) ---------- */
.vs-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.65rem 1.25rem;
  background: linear-gradient(180deg, rgba(var(--bg-rgb), 0.96) 0%, rgba(var(--bg-rgb), 0.90) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.vs-topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none !important;
  flex-shrink: 0;
}

.vs-topbar-brand .vs-brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(var(--primary-rgb), 0.6);
  flex-shrink: 0;
}

.vs-topbar-nav {
  display: none;
  align-items: center;
  gap: 0.25rem;
  margin-left: 0.5rem;
}

@media (min-width: 1024px) {
  .vs-topbar-nav {
    display: flex;
  }
}

.vs-topnav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none !important;
  transition: background-color var(--motion-fast), color var(--motion-fast), border-color var(--motion-fast);
  white-space: nowrap;
}

.vs-topnav-link svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.vs-topnav-link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.vs-topnav-link.is-active {
  background: var(--primary-soft);
  color: var(--accent-text);
  box-shadow: inset 0 0 0 1px var(--border-medium);
}

.vs-topnav-link.is-active svg {
  color: var(--accent-text);
}

.vs-sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  flex-shrink: 0;
}

.vs-sidebar-toggle:hover { color: var(--text); border-color: var(--text-muted); }

@media (max-width: 1023px) {
  .vs-sidebar-toggle { display: inline-flex; }

  /* Product surfaces that intentionally use one top navigation (rather than a
     second mobile drawer) retain every destination on small screens. */
  .vs-shell:not(:has(.vs-sidebar)) .vs-topbar {
    overflow-x: auto;
    align-items: center;
  }

  .vs-shell:not(:has(.vs-sidebar)) .vs-topbar-nav {
    display: flex;
    flex: 0 0 auto;
    min-width: max-content;
  }
}

.vs-topbar-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.vs-topbar-spacer { flex: 1; }

.vs-topbar-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none !important;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-pill);
  transition: all 0.15s ease;
}

.vs-topbar-link:hover { color: var(--text); background: var(--surface-2); }
.vs-topbar-link svg { width: 14px; height: 14px; }

/* min-width:0 + overflow:hidden phá "min-width:auto" mặc định của flex item (vốn
   khoá độ rộng tối thiểu bằng đúng độ dài chuỗi không-wrap) — cho phép chuỗi
   freshness dài (Phiên .. · snapshot .. · pipeline local) co lại và hiện "…" thay vì
   đẩy tràn ngang topbar ở 1024/768px. Không đổi nav/logo/nút — chỉ mỗi span này co. */
.vs-topbar-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  flex-shrink: 1;
}

@media (prefers-reduced-motion: reduce) {
  .vs-sidebar,
  .vs-sidebar-overlay,
  .vs-topnav-link,
  .vs-sidebar-link {
    transition: none !important;
  }
}

/* ---------- Status footer ---------- */
.vs-statusfooter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-top: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* ---------- Status chip (chỉ báo tươi/cũ của dữ liệu) ---------- */
.vs-status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.vs-status-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
}

.vs-status-chip.is-live { color: var(--success); }
.vs-status-chip.is-live::before { background: var(--success); box-shadow: 0 0 6px rgba(var(--success-rgb), 0.7); }
.vs-status-chip.is-stale { color: var(--warning); }
.vs-status-chip.is-stale::before { background: var(--warning); }
.vs-status-chip.is-offline { color: var(--danger); }
.vs-status-chip.is-offline::before { background: var(--danger); }

/* ---------- Loading skeleton ---------- */
.vs-skeleton {
  position: relative;
  overflow: hidden;
  background: var(--surface-2);
  border-radius: var(--radius-md);
}

.vs-skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(140, 163, 168, 0.14), transparent);
  animation: vs-shimmer 1.4s ease-in-out infinite;
}

@keyframes vs-shimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

.vs-skeleton-line { height: 0.85rem; margin-bottom: 0.55rem; }
.vs-skeleton-line:last-child { margin-bottom: 0; width: 65%; }

/* ---------- Empty state ---------- */
.vs-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
}

.vs-empty svg {
  width: 34px;
  height: 34px;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.vs-empty-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.vs-empty-sub {
  font-size: 0.8rem;
  max-width: 34rem;
}

/* ---------- Error state ---------- */
.vs-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem 1.5rem;
  border: 1px dashed rgba(var(--danger-rgb), 0.35);
  border-radius: var(--radius-lg);
  background: var(--danger-soft);
}

.vs-error svg { width: 30px; height: 30px; color: var(--danger); margin-bottom: 0.75rem; }
.vs-error-title { font-size: 0.9rem; font-weight: 700; color: var(--danger); margin-bottom: 0.3rem; }
.vs-error-sub { font-size: 0.8rem; color: var(--text-muted); max-width: 32rem; }

/* ============================================================
 * Phase 2 — component migration
 * Thay thế các thành phần Bootstrap TĨNH (không có JS đọc theo
 * class, chỉ theo id) bằng component riêng, cùng bộ token màu.
 * Bảng DataTables (#market-table/#tblScreen/#tblBreadth) và mọi
 * HTML do app.js/analysis.js sinh ra KHÔNG đụng — xem style.css.
 * ============================================================ */

/* ---------- Button ---------- */
.vs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none !important;
  transition: all 0.15s ease;
}

.vs-btn:hover { background: var(--surface-2); border-color: var(--text-muted); color: var(--text); }
.vs-btn:active { transform: translateY(1px); }
.vs-btn-sm { padding: 0.32rem 0.8rem; font-size: 0.76rem; }

/* ---------- Select / Input ---------- */
.vs-select, .vs-input {
  display: block;
  width: 100%;
  background-color: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-family: inherit;
  padding: 0.4rem 0.65rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.vs-select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 1.8rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  background-size: 12px;
}

.vs-input::placeholder { color: var(--text-muted); }
.vs-select-sm, .vs-input-sm { padding-top: 0.28rem; padding-bottom: 0.28rem; font-size: 0.8rem; }

.vs-select:focus, .vs-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.18);
}

/* ---------- Checkbox / switch ---------- */
.vs-checkbox-row { display: flex; align-items: center; gap: 0.6rem; }

.vs-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 34px;
  height: 19px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--border);
  border: 1px solid var(--border);
  position: relative;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.vs-checkbox::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: transform 0.15s ease;
}

.vs-checkbox:checked { background: var(--primary); border-color: var(--primary); }
.vs-checkbox:checked::before { transform: translateX(15px); background: #fff; }
.vs-checkbox-label { font-size: 0.83rem; color: var(--text); cursor: pointer; }

/* ---------- Alert ---------- */
.vs-alert {
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

.vs-alert-warning {
  background: var(--warning-soft);
  border: 1px solid rgba(var(--warning-rgb), 0.3);
  color: var(--warning-text);
}

.vs-alert-warning code { background: rgba(0, 0, 0, 0.25); color: var(--warning-code); }

/* ---------- List ---------- */
.vs-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-secondary);
  font-size: 0.83rem;
  text-decoration: none !important;
  transition: all 0.15s ease;
}

.vs-list-item:last-child { border-bottom: 0; }
.vs-list-item:hover { color: var(--accent-text-strong); padding-left: 0.4rem; }

/* ---------- Focus-visible (bàn phím) ---------- */
.vs-btn:focus-visible,
.vs-select:focus-visible,
.vs-input:focus-visible,
.vs-checkbox:focus-visible,
.vs-list-item:focus-visible,
.vs-sidebar-link:focus-visible,
.vs-topbar-link:focus-visible,
.vs-sidebar-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============================================================
 * Phase 3 — trang dữ liệu (dashboard/screener/analysis)
 * Icon button dùng chung (nút làm mới, nút đóng modal) + modal
 * chi tiết mã (screener.html) — component MỚI hoàn toàn, chưa
 * trang nào có trước đó.
 * ============================================================ */

/* ---------- Icon button (nút làm mới, nút đóng modal) ---------- */
.vs-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.vs-icon-btn:hover { background: var(--surface-2); color: var(--text); border-color: var(--text-muted); }
.vs-icon-btn:active { transform: scale(0.94); }
.vs-icon-btn svg { width: 15px; height: 15px; }
.vs-icon-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* Touch target ≥44px trên mobile/tablet (28px trên desktop là đủ vì dùng chuột) — đặt
   SAU rule .vs-icon-btn gốc để thắng cascade (cùng specificity, sau thắng trước). */
@media (max-width: 1023px) {
  .vs-icon-btn { width: 44px; height: 44px; }
}

/* ---------- Company panel (Phase 3: modal giữa màn hình -> Phase 4:
   trượt từ bên phải, kiểu panel nghiên cứu thay vì hộp thoại trung tâm) ---------- */
.vs-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  background: rgba(3, 8, 10, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.vs-modal-backdrop.is-open { opacity: 1; pointer-events: auto; }

.vs-modal {
  width: 100%;
  max-width: 26rem;
  height: 100vh;
  max-height: 100vh;
  overflow-y: auto;
  background: var(--surface);
  border-left: 1px solid var(--border-soft);
  box-shadow: -8px 0 32px rgba(3, 8, 10, 0.5);
  transform: translateX(100%);
  transition: transform 0.22s ease;
}

.vs-modal-backdrop.is-open .vs-modal { transform: translateX(0); }

.vs-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}

.vs-modal-title { font-size: 1.1rem; font-weight: 800; letter-spacing: 0.02em; }
.vs-modal-body { padding: 1.1rem 1.25rem; }

.vs-modal-stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.85rem; }

.vs-modal-stat-label {
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.vs-modal-stat-value { font-size: 0.95rem; font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---------- Tab trong panel (Tổng quan / Biểu đồ / Báo cáo tài chính) ---------- */
.vs-panel-tabs {
  display: flex;
  gap: 1.1rem;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 57px;
  background: var(--surface);
  z-index: 1;
}

.vs-panel-tab {
  padding: 0.65rem 0.1rem;
  margin-bottom: -1px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}

.vs-panel-tab:hover { color: var(--text); }
.vs-panel-tab.is-active { color: var(--accent-text); border-bottom-color: var(--primary); }
.vs-panel-tab:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }

.vs-panel-tab-content { display: none; }
.vs-panel-tab-content.is-active { display: block; }

/* Corporate Intelligence inside the existing company-panel overview. */
.cp-ci { margin-top: 1.35rem; padding-top: 1.1rem; border-top: 1px solid var(--border-soft); }
.cp-ci h3, .cp-ci h4, .cp-ci h5 { margin: 0; }
.cp-ci h3 { font-size: 0.95rem; font-weight: 800; }
.cp-ci-section { margin-top: 1rem; }
.cp-ci-section h4 { font-size: 0.78rem; color: var(--accent-text); }
.cp-ci-source { margin-top: 0.55rem; padding: 0.65rem; border: 1px solid var(--border-soft); border-radius: 0.4rem; }
.cp-ci-source h5 { font-size: 0.74rem; font-weight: 800; }
.cp-ci-meta { margin-top: 0.2rem; color: var(--text-muted); font-size: 0.68rem; }
.cp-ci-fields { display: grid; gap: 0.35rem; margin-top: 0.5rem; }
.cp-ci-field { display: flex; justify-content: space-between; gap: 0.75rem; font-size: 0.74rem; }
.cp-ci-field span { color: var(--text-muted); }
.cp-ci-field strong { text-align: right; overflow-wrap: anywhere; }
.cp-ci-record + .cp-ci-record { margin-top: 0.55rem; padding-top: 0.55rem; border-top: 1px solid var(--border-soft); }
.cp-ci-notice { margin-top: 0.55rem; padding: 0.55rem 0.65rem; border-radius: 0.35rem; font-size: 0.74rem; color: var(--text-muted); background: rgba(140, 163, 168, 0.1); overflow-wrap: anywhere; }
.cp-ci-partial { color: var(--warning); }
.cp-ci-malformed { color: var(--danger); }
.cp-ci-incomparable { color: var(--warning); }
/* Historical financial valuation is additive to the live company-panel stats. */
.cp-hv { margin-top: 1.35rem; padding-top: 1.1rem; border-top: 1px solid var(--border-soft); }
.cp-hv h3 { margin: 0; font-size: 0.95rem; font-weight: 800; }
.cp-ci-historical { color: var(--accent-text); }
.cp-hv-details { margin-top: 0.65rem; font-size: 0.72rem; color: var(--text-muted); }
.cp-hv-details summary { cursor: pointer; color: var(--accent-text); }
.cp-hv-details code { overflow-wrap: anywhere; }
.vs-tech-details { margin-top: 0.45rem; font-size: 0.75rem; color: var(--text-muted); }
.vs-tech-details summary { cursor: pointer; color: var(--accent-text); font-weight: 600; }
.vs-tech-details .cockpit-code,
.vs-tech-details pre { margin: 0.4rem 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.vs-provenance-label { margin-top: 0.35rem; font-weight: 600; }
.vs-lineage-qual { font-size: 0.78em; }
.qrs2-states { display: grid; gap: 0.4rem; margin-top: 0.65rem; }
.qrs2-state { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 0.15rem 0.65rem; padding: 0.5rem 0.6rem; border: 1px solid var(--border-soft); border-radius: 0.35rem; font-size: 0.74rem; }
.qrs2-state span { color: var(--text-muted); }
.qrs2-state small { grid-column: 1 / -1; color: var(--text-muted); overflow-wrap: anywhere; }
.qrs2-qualified { border-color: var(--success); background: color-mix(in srgb, var(--success) 10%, transparent); }
.qrs2-unavailable { border-color: var(--warning); background: color-mix(in srgb, var(--warning) 10%, transparent); }

/* ---------- Resize handle giữa 2 cột (Phase 4) ---------- */
.vs-resize-handle {
  display: none;
  width: 8px;
  margin: 0 -4px;
  flex-shrink: 0;
  cursor: col-resize;
  position: relative;
  z-index: 5;
}

.vs-resize-handle::after {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 50%;
  width: 3px;
  transform: translateX(-50%);
  background: var(--border);
  border-radius: 2px;
  transition: background-color 0.15s ease;
}

.vs-resize-handle:hover::after, .vs-resize-handle.is-dragging::after { background: var(--primary); }
.vs-resize-handle:focus-visible { outline: none; }
.vs-resize-handle:focus-visible::after { background: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.25); }

body.is-resizing-panel { cursor: col-resize !important; }
body.is-resizing-panel * { user-select: none !important; }

/* Single-topbar pages keep the same five destinations visible on small screens. */
@media (max-width: 1023px) {
  body[data-page="investment-workspace"] .vs-topbar,
  body[data-page="portfolio"] .vs-topbar,
  body[data-page="about"] .vs-topbar,
  body[data-page="signals"] .vs-topbar { flex-wrap: wrap; }
  body[data-page="investment-workspace"] .vs-topbar-nav,
  body[data-page="portfolio"] .vs-topbar-nav,
  body[data-page="about"] .vs-topbar-nav,
  body[data-page="signals"] .vs-topbar-nav { display: flex; order: 3; width: 100%; justify-content: space-between; }
  .vs-topnav-link { font-size: .78rem; padding: .4rem; }
  .vs-topbar-link { font-size: .7rem; }
}

@media (min-width: 1280px) {
  [data-resizable] > .vs-resize-handle { display: block; }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .vs-content { padding: 1rem; }
  .vs-topbar-meta { display: none; }
}

/* 1024–1279px: cùng 6 mục nav, cùng thứ tự/icon/nhãn/hành vi — chỉ giảm khoảng đệm để
   vừa khít topbar (band hẹp giữa lúc drawer tắt ở 1024px và topbar rộng rãi ở ≥1280px).
   Không ẩn/gộp/đổi thứ tự mục nào; đặt sau cùng để thắng cascade (cùng specificity,
   sau thắng trước) trên rule .vs-topbar/.vs-topnav-link gốc phía trên. */
@media (min-width: 1024px) and (max-width: 1279px) {
  .vs-topbar { gap: 0.6rem; }
  .vs-topnav-link { padding: 0.4rem 0.45rem; }
}