/* features.css — thành phần UI mới (S4–S5): theme toggle, sticky result bar,
   lịch sử/so sánh kịch bản, quick-switch. Chỉ dùng token; không style="" inline. */

/* ── Nút đổi giao diện ─────────────────────────────────────── */
.theme-toggle {
  margin-left: auto;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 1px solid var(--color-border); border-radius: var(--r-full);
  color: var(--color-text); cursor: pointer; font-size: 1.1rem; line-height: 1;
  transition: background var(--dur-fast) var(--easing), transform var(--dur-base) var(--easing-spring);
}
.theme-toggle:hover { background: var(--color-surface); transform: rotate(20deg); }
.theme-toggle:focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 2px; }
@media (max-width: 768px) { .theme-toggle { margin-left: auto; } .nav-toggle { margin-left: 0; } }
@media (min-width: 769px) { .nav-cta { margin-left: 0; } .main-nav { flex: 1; } }

/* ── Thanh kết quả cố định (mobile) ────────────────────────── */
.sticky-result {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: none; align-items: center; justify-content: space-between; gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4) calc(var(--sp-3) + env(safe-area-inset-bottom));
  min-height: 44px;
  background: var(--color-bg); color: var(--color-text);
  border: 0; border-top: 1px solid var(--color-border); box-shadow: var(--shadow-float);
  font: inherit; cursor: pointer; text-align: left;
  animation: slide-up var(--dur-enter) var(--easing) 1;
}
@keyframes slide-up { from { transform: translateY(100%); } to { transform: none; } }
@media (max-width: 900px) { .sticky-result:not([hidden]) { display: flex; } }
.sticky-result-val { font-weight: 800; font-variant-numeric: tabular-nums; }
.sticky-result-val.is-positive { color: var(--s-fg); }
.sticky-result-val.is-negative { color: var(--d-fg); }
.sticky-result-go { font-size: var(--text-sm); color: var(--color-link); font-weight: 600; white-space: nowrap; }
@media print { .sticky-result, .theme-toggle, .calc-history { display: none !important; } }

/* ── Phím tắt gợi ý: ẩn trên mobile ────────────────────────── */
@media (max-width: 768px) { .kbd-hint { display: none; } }

/* ── Nút kết quả đủ 44px trên mobile ───────────────────────── */
@media (max-width: 768px) {
  .result-copy-bar .btn-sm { min-height: 44px; }
}

/* ── Lịch sử & so sánh ─────────────────────────────────────── */
.calc-history { grid-column: 1 / -1; border: 1px solid var(--color-border); border-radius: var(--r-lg); background: var(--color-surface); padding: var(--sp-3) var(--sp-5); }
.calc-history > summary { cursor: pointer; font-weight: 600; padding-block: var(--sp-2); }
.calc-history-body { padding-block: var(--sp-3); display: grid; gap: var(--sp-4); }
.calc-history-bar { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.calc-history-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-2); }
.calc-history-item { display: grid; grid-template-columns: auto 1fr auto auto auto; gap: var(--sp-3); align-items: center; padding: var(--sp-2) var(--sp-3); border: 1px solid var(--color-border-soft); border-radius: var(--r-md); background: var(--color-bg); }
.calc-history-main small { color: var(--color-text-muted); }
.calc-history-val { font-weight: 700; font-variant-numeric: tabular-nums; }
.calc-history-val.is-positive, td.is-positive { color: var(--s-fg); }
.calc-history-val.is-negative, td.is-negative { color: var(--d-fg); }
@media (max-width: 640px) {
  .calc-history-item { grid-template-columns: auto 1fr auto; }
  .calc-history-item .calc-history-val { grid-column: 2; }
}
.compare-table td.is-best { font-weight: 800; background: color-mix(in oklch, var(--s-fg) 12%, transparent); }
.compare-table th:first-child { text-align: left; }

/* ── Quick-switch (Ctrl/⌘+K) ───────────────────────────────── */
.quick-switch { width: min(92vw, 420px); }
.quick-switch::backdrop { background: oklch(12% 0.01 250 / 0.45); }
.quick-switch-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--sp-1); }
.quick-switch-list a { display: block; padding: var(--sp-3); border-radius: var(--r-md); text-decoration: none; color: var(--color-text); }
.quick-switch-list a:hover, .quick-switch-list a:focus-visible { background: var(--color-surface); outline: 2px solid var(--color-focus-ring); }

/* Nút CTA trong menu: không bị .main-nav a (màu muted) đè chữ */
.main-nav a.btn-primary, .main-nav a.btn-primary:hover { color: #fff; background: var(--a-700); }
.main-nav a.btn-primary:hover { background: var(--a-800); }


/* ── S3–S6: Visual Charts, Industry Presets, Popovers, Accordion Steps & Admin Viz ── */
.viz-card {
  margin-top: var(--sp-5);
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--color-border);
}

.donut-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  flex-wrap: wrap;
}

.donut-svg {
  width: 112px;
  height: 112px;
  transform: rotate(-90deg);
  flex-shrink: 0;
}

.donut-track {
  fill: none;
  stroke: var(--color-surface);
  stroke-width: 16;
}

.donut-seg {
  fill: none;
  stroke-width: 16;
  transition: stroke-dasharray var(--dur-base) var(--easing);
}

.donut-g-cost    { stroke: var(--d-fg); }
.donut-g-ops     { stroke: var(--w-fg); }
.donut-g-fee     { stroke: var(--color-accent); }
.donut-g-reserve { stroke: var(--i-fg); }
.donut-g-profit  { stroke: var(--s-fg); }

.donut-dot.donut-g-cost    { background: var(--d-fg); }
.donut-dot.donut-g-ops     { background: var(--w-fg); }
.donut-dot.donut-g-fee     { background: var(--color-accent); }
.donut-dot.donut-g-reserve { background: var(--i-fg); }
.donut-dot.donut-g-profit  { background: var(--s-fg); }

.donut-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  min-width: 200px;
  display: grid;
  gap: var(--sp-2);
}

.donut-legend-item {
  display: grid;
  grid-template-columns: 10px 1fr auto auto;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
}

.donut-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.donut-pct { font-weight: 700; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
.donut-val { font-weight: 600; font-variant-numeric: tabular-nums; }

.scale-svg,
.roas-svg {
  width: 100%;
  height: auto;
  display: block;
}

.scale-loss { fill: color-mix(in oklch, var(--d-fg) 35%, transparent); }
.scale-gain { fill: color-mix(in oklch, var(--s-fg) 35%, transparent); }
.scale-dot.is-warn     { fill: var(--w-fg); stroke: var(--color-bg); stroke-width: 2; }
.scale-dot.is-positive { fill: var(--s-fg); stroke: var(--color-bg); stroke-width: 2; }
.scale-dot.is-accent   { fill: var(--color-accent); stroke: var(--color-bg); stroke-width: 2; }
.scale-lbl { font-size: 9px; font-weight: 600; fill: var(--color-text-muted); }

.roas-zero { stroke: var(--color-border); stroke-width: 1; stroke-dasharray: 3 3; }
.roas-be-line { stroke: var(--w-fg); stroke-width: 1.5; stroke-dasharray: 4 3; }
.roas-curve-path { fill: none; stroke: var(--color-accent); stroke-width: 2.2; stroke-linecap: round; }
.roas-pt.is-positive { fill: var(--s-fg); }
.roas-pt.is-negative { fill: var(--d-fg); }
.roas-pt-current { fill: var(--color-primary); stroke: var(--color-bg); stroke-width: 2; }
.roas-axis-lbl { font-size: 9px; fill: var(--color-text-muted); }

/* Industry quick-preset chips */
.industry-presets {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2);
  padding: var(--sp-3);
  margin-bottom: var(--sp-4);
  background: var(--color-surface);
  border-radius: var(--r-md);
  border: 1px solid var(--color-border-soft);
}

.industry-presets-label {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
}

.chip-btn {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: var(--r-full);
  padding: 4px var(--sp-3);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--easing), background var(--dur-fast) var(--easing);
}

.chip-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* Collapsible form step groups */
.calc-step-group {
  border: 1px solid var(--color-border-soft);
  border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4);
  margin-bottom: var(--sp-4);
}

.calc-step-group > summary {
  cursor: pointer;
  list-style: none;
  margin-bottom: 0;
}

.calc-step-group[open] > summary {
  margin-bottom: var(--sp-3);
}

/* Popover help tooltip */
.help-tip-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  vertical-align: middle;
  margin-left: var(--sp-1);
}

.help-popover {
  max-width: 320px;
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
}

.help-popover-title { font-weight: 700; font-size: var(--text-sm); margin: 0 0 var(--sp-1); }
.help-popover-body  { font-size: var(--text-xs); color: var(--color-text-muted); margin: 0; line-height: 1.5; }

/* Admin Dashboard SVG distribution bars & Diff panel */
.admin-viz-bar { margin-bottom: var(--sp-5); }
.admin-viz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-5);
}

.admin-bar-svg {
  width: 100%;
  height: 10px;
  border-radius: var(--r-full);
  overflow: hidden;
  display: block;
  margin: var(--sp-2) 0;
  background: var(--color-surface);
}

.admin-bar-svg .bar-ok   { fill: var(--s-fg); }
.admin-bar-svg .bar-warn { fill: var(--w-fg); }
.admin-bar-svg .bar-fail { fill: var(--d-fg); }
.admin-bar-svg .bar-info { fill: var(--i-fg); }

.admin-diff-panel { margin-top: var(--sp-6); }
.diff-old { color: var(--d-fg); }
.diff-new { color: var(--s-fg); }


/* Smart Actions (Cảnh báo thông minh & gợi ý hành động) */
.smart-actions {
  display: grid;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.smart-action-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  flex-wrap: wrap;
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg);
}

.smart-action-item.is-negative {
  border-left-color: var(--d-fg);
  background: color-mix(in oklch, var(--d-bg) 55%, var(--color-bg));
  animation: pulse-soft 2.2s ease-in-out 2;
}

.smart-action-item.is-warn {
  border-left-color: var(--w-fg);
  background: color-mix(in oklch, var(--w-bg) 55%, var(--color-bg));
}

.smart-action-link {
  font-weight: 700;
  font-size: var(--text-xs);
  white-space: nowrap;
}


/* ==========================================================================
   Modern Fintech + Content Magazine UI & Responsive System
   Bao phủ: Public, User Portal (/tai-khoan/*) & Admin (/admin/*)
   ========================================================================== */

/* -- Primitives & Utilities bị thiếu -------------------------------------- */
.muted {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-soft);
}
.btn-outline:hover {
  background: var(--color-surface);
  border-color: var(--color-text-faint);
}

.btn-danger {
  background: var(--d-fg);
  color: var(--n-0);
  border: 1px solid transparent;
}
.btn-danger:hover {
  filter: brightness(0.92);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* -- Form Fields (chuẩn tap-target >= 44px cho mobile) -------------------- */
.field {
  display: grid;
  gap: var(--sp-2);
}

.field label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.field input,
.field select,
.field textarea,
.portal-filter-bar input,
.portal-filter-bar select,
.admin-filter-row input,
.admin-filter-row select,
.portal-inline-form input,
.admin-inline-form select {
  width: 100%;
  min-height: 44px;
  padding: 0.625rem 0.875rem;
  font: inherit;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--r-md);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus,
.portal-filter-bar input:focus,
.admin-filter-row input:focus,
.admin-filter-row select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--color-accent) 18%, transparent);
}

.field input:disabled {
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.field-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* -- Flash Messages & Badges ---------------------------------------------- */
.flash-stack {
  display: grid;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.flash {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--color-border);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.5;
}

.flash-success { background: var(--s-bg); color: var(--s-fg); border-color: color-mix(in oklch, var(--s-fg) 24%, transparent); }
.flash-error   { background: var(--d-bg); color: var(--d-fg); border-color: color-mix(in oklch, var(--d-fg) 24%, transparent); }
.flash-warning { background: var(--w-bg); color: var(--w-fg); border-color: color-mix(in oklch, var(--w-fg) 24%, transparent); }
.flash-info    { background: var(--i-bg); color: var(--i-fg); border-color: color-mix(in oklch, var(--i-fg) 24%, transparent); }

.badge-success { background: var(--s-bg); color: var(--s-fg); }
.badge-info    { background: var(--i-bg); color: var(--i-fg); }

.notif-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.38rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-left: 0.3rem;
}

/* -- Modern Fintech + Content Magazine Surface & Typography Polish -------- */
html, body {
  overflow-x: clip;
}

.hero h1,
.page-head h1,
.article-head h1 {
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.article-prose,
.article-body {
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.72;
  max-width: 68ch;
}

.article-prose h2,
.article-body h2 {
  margin-top: var(--sp-10);
  margin-bottom: var(--sp-3);
  letter-spacing: -0.015em;
}

.article-prose blockquote,
.article-body blockquote {
  margin: var(--sp-6) 0;
  padding: var(--sp-4) var(--sp-5);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.card,
.admin-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.tool-card,
.article-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

@media (hover: hover) {
  .tool-card:hover,
  .article-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-border-soft);
    box-shadow: 0 8px 24px -8px rgba(15, 23, 42, 0.1);
  }
}

/* -- Header & Navigation Responsive Polish -------------------------------- */
@media (min-width: 769px) and (max-width: 1100px) {
  .main-nav {
    gap: var(--sp-2);
  }
  .main-nav a {
    font-size: var(--text-sm);
    padding-inline: var(--sp-2);
  }
}

@media (max-width: 768px) {
  .main-nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}

/* -- Auth Pages (/tai-khoan/dang-nhap/, /dang-ky/...) --------------------- */
.auth-shell {
  padding-block: clamp(2rem, 6vw, 4rem);
  display: flex;
  justify-content: center;
}

.auth-card {
  width: 100%;
  max-width: 440px;
  padding: clamp(1.25rem, 4vw, 2rem);
}

.auth-header h1 {
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.auth-form {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-5);
}

.auth-footer {
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: var(--text-sm);
}

/* -- User Portal (/tai-khoan/*) ------------------------------------------- */
.portal-shell {
  padding-block: clamp(1.25rem, 3vw, 2.5rem) var(--sp-12);
}

.portal-layout {
  display: grid;
  grid-template-columns: 256px minmax(0, 1fr);
  gap: var(--sp-6);
  align-items: start;
}

.portal-sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  display: grid;
  gap: var(--sp-4);
  position: sticky;
  top: 84px;
}

.portal-user-card {
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--color-border);
}

.portal-user-name {
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
}

.portal-user-email {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0.15rem 0 0;
  word-break: break-word;
}

.portal-nav {
  display: grid;
  gap: 0.25rem;
}

.portal-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  padding: 0.5rem 0.75rem;
  border-radius: var(--r-md);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--text-sm);
  transition: background-color 140ms ease, color 140ms ease;
}

.portal-nav a:hover {
  background: var(--color-bg);
}

.portal-nav a[aria-current="page"] {
  background: color-mix(in oklch, var(--color-accent) 12%, transparent);
  color: var(--color-accent-hover);
  font-weight: 700;
}

.portal-main {
  display: grid;
  gap: var(--sp-5);
  min-width: 0;
}

.portal-page-header,
.admin-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-4);
  margin-bottom: var(--sp-2);
}

.portal-page-header h1,
.admin-header h1 {
  margin: 0 0 0.25rem;
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  letter-spacing: -0.02em;
}

.portal-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.portal-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(165px, 1fr));
  gap: var(--sp-4);
}

.kpi-card {
  padding: var(--sp-4) var(--sp-5);
  border-top: 3px solid color-mix(in oklch, var(--color-accent) 45%, var(--color-border));
}

.kpi-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 0.35rem;
}

.kpi-value {
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
  font-weight: 800;
  margin: 0;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.portal-two-col,
.admin-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-5);
}

.portal-panel,
.admin-card {
  padding: clamp(1rem, 2.5vw, 1.5rem);
  min-width: 0;
}

.portal-panel h2,
.admin-card h2 {
  margin: 0 0 var(--sp-4);
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.portal-panel-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.portal-panel-header h2 {
  margin: 0;
}

.portal-form,
.admin-form-stack {
  display: grid;
  gap: var(--sp-4);
}

.portal-list,
.session-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--sp-3);
}

.portal-list-item,
.session-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
}

.portal-list-item.is-unread {
  background: var(--color-bg);
  border-left: 3px solid var(--color-accent);
}

.portal-filter-bar,
.portal-inline-form,
.admin-filter-row,
.admin-inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  align-items: center;
  margin-bottom: var(--sp-4);
}

.portal-filter-bar input,
.admin-filter-row input {
  flex: 1 1 220px;
}

.portal-filter-bar select,
.admin-filter-row select,
.admin-inline-form select {
  flex: 0 1 210px;
}

.portal-inline-form input {
  flex: 1 1 220px;
}

/* -- Tables & Pagination (Fintech tabular numbers + mobile scroll) -------- */
.portal-table,
.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.portal-table th,
.portal-table td,
.admin-table th,
.admin-table td {
  padding: 0.75rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: var(--text-sm);
  vertical-align: middle;
}

.portal-table th,
.admin-table th {
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.portal-table tbody tr:hover,
.admin-table tbody tr:hover {
  background: color-mix(in oklch, var(--color-surface) 65%, transparent);
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
  font-size: var(--text-sm);
}

.pagination a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--r-md);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}

.pagination a:hover {
  background: var(--color-surface);
}

.portal-danger-zone {
  border-color: color-mix(in oklch, var(--d-fg) 35%, var(--color-border));
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.status-pill.status-active    { background: var(--s-bg); color: var(--s-fg); }
.status-pill.status-suspended { background: var(--w-bg); color: var(--w-fg); }
.status-pill.status-closed    { background: var(--d-bg); color: var(--d-fg); }

.detail-dl {
  display: grid;
  grid-template-columns: 165px minmax(0, 1fr);
  gap: 0.6rem 1rem;
  margin: 0;
  font-size: var(--text-sm);
}

.detail-dl dt {
  color: var(--color-text-muted);
  font-weight: 600;
}

.detail-dl dd {
  margin: 0;
  word-break: break-word;
}

.admin-divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: var(--sp-5) 0;
}

/* -- Tablet & Mobile Breakpoints ------------------------------------------ */
@media (max-width: 900px) {
  .portal-layout {
    grid-template-columns: 1fr;
  }

  .portal-sidebar {
    position: static;
  }

  .portal-nav {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 0.4rem;
    padding-bottom: 0.25rem;
  }

  .portal-nav a {
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
  }
}

@media (max-width: 640px) {
  .portal-two-col,
  .admin-grid-2 {
    grid-template-columns: 1fr;
  }

  .portal-kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portal-list-item,
  .session-item {
    flex-direction: column;
    align-items: stretch;
  }

  .portal-filter-bar > *,
  .admin-filter-row > *,
  .portal-inline-form > *,
  .admin-inline-form > * {
    flex: 1 1 100%;
  }

  .detail-dl {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .detail-dl dt {
    margin-top: 0.4rem;
  }
}



/* ==========================================================================
   Public Editorial + Fintech Components (/cong-cu/, /kien-thuc/, /bang-phi/, /gioi-thieu/)
   ========================================================================== */

.editorial-hero {
  padding: clamp(1.25rem, 3.5vw, 2.5rem) 0 clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
}

.editorial-hero h1 {
  margin: var(--sp-3) 0 var(--sp-3);
  font-size: clamp(1.75rem, 3.4vw, 2.65rem);
  letter-spacing: -0.025em;
  line-height: 1.18;
}

.editorial-hero .page-lead {
  max-width: 68ch;
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.65;
}

.eyebrow-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.75rem;
  border-radius: 999px;
  font-size: var(--text-xs, 0.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: color-mix(in oklch, var(--color-accent) 12%, transparent);
  color: var(--color-accent-hover);
}

.workflow-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.workflow-step {
  display: flex;
  gap: var(--sp-3);
  align-items: flex-start;
  padding: var(--sp-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.workflow-step:hover {
  border-color: var(--color-accent);
  background: var(--color-bg);
  transform: translateY(-2px);
}

.workflow-step strong {
  display: block;
  font-size: var(--text-base);
  margin-bottom: 0.2rem;
}

.workflow-step p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.workflow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.45rem;
  border-radius: var(--r-md);
  background: color-mix(in oklch, var(--color-accent) 14%, transparent);
  color: var(--color-accent-hover);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.section-heading-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--sp-2) var(--sp-4);
  margin-bottom: var(--sp-4);
}

.section-heading-row h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  letter-spacing: -0.015em;
}

.tool-card--fintech .tool-card-top,
.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.tool-card--fintech .tool-card-footer,
.article-card--mag .tool-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.article-featured {
  display: block;
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
  background: linear-gradient(
    135deg,
    color-mix(in oklch, var(--color-accent) 8%, var(--color-surface)) 0%,
    var(--color-bg) 70%
  );
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.article-featured:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px -12px rgba(15, 23, 42, 0.14);
}

.article-featured h2 {
  margin: 0 0 var(--sp-3);
  font-size: clamp(1.35rem, 2.5vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.article-featured-excerpt {
  max-width: 68ch;
  margin: 0 0 var(--sp-4);
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.65;
}

.article-read-cta {
  font-weight: 700;
  color: var(--color-accent-hover);
  font-size: var(--text-sm);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-4);
}

.principle-card {
  display: grid;
  align-content: start;
  gap: var(--sp-2);
  padding: var(--sp-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
}

.principle-card h3 {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.35;
}

.principle-card p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.principle-card--link {
  text-decoration: none;
  color: inherit;
  background: var(--color-bg);
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.principle-card--link:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -10px rgba(15, 23, 42, 0.12);
}

.callout-banner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4) var(--sp-6);
  margin-top: var(--sp-8);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--r-lg);
}

.callout-banner-body {
  flex: 1 1 320px;
}

.callout-banner-body h2 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
}

.callout-banner-body p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.callout-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

@media (max-width: 900px) {
  .workflow-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .callout-banner-actions {
    width: 100%;
  }
  .callout-banner-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}


/* -- Breadcrumbs (.breadcrumb ol) ----------------------------------------- */
.breadcrumb {
  margin-bottom: var(--sp-3);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-text-faint);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.breadcrumb span[aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}


/* ==========================================================================
   Visual Polish: Depth, Glass Header, Elevated Cards & Spacing
   ========================================================================== */

.site-header {
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.page-body {
  padding-top: clamp(1.25rem, 3vw, 2.25rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.editorial-hero {
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  background:
    radial-gradient(circle at 92% 14%, color-mix(in oklch, var(--color-accent) 10%, transparent), transparent 45%),
    var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  margin-bottom: var(--sp-8);
}

.tool-card,
.article-card,
.card,
.admin-card,
.workflow-step,
.principle-card,
.callout-banner {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04), 0 4px 14px -4px rgba(15, 23, 42, 0.04);
}

.tool-card {
  border-radius: var(--r-lg);
}

.tool-card-body {
  padding: var(--sp-6);
}

.tool-card-footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 55%, var(--color-surface));
  font-weight: 600;
  color: var(--color-accent-hover);
}