:root {
  --drl-color-bg: #f7faf9;
  --drl-color-surface: #ffffff;
  --drl-color-surface-muted: #eef5f3;
  --drl-color-border: #d8e5e1;
  --drl-color-text: #17323d;
  --drl-color-muted: #526b74;
  --drl-color-primary: #0b7a75;
  --drl-color-primary-soft: #e4f4f2;
  --drl-color-danger: #b42318;
  --drl-color-warning: #9a6700;
  --drl-color-success: #1f7a4d;
  --drl-color-info: #256a8a;
  --drl-space-1: 0.25rem;
  --drl-space-2: 0.5rem;
  --drl-space-3: 0.75rem;
  --drl-space-4: 1rem;
  --drl-space-5: 1.25rem;
  --drl-space-6: 1.5rem;
  --drl-radius-sm: 4px;
  --drl-radius-md: 8px;
  --drl-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --drl-shadow-md: 0 12px 24px rgba(15, 23, 42, 0.1);
  --drl-content-max: 1280px;
}

.drl-icon-button {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--drl-color-border);
  border-radius: var(--drl-radius-md);
  background: var(--drl-color-surface);
  color: var(--drl-color-muted);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.drl-icon-button:hover,
.drl-icon-button:focus-visible {
  background: var(--drl-color-primary-soft);
  border-color: var(--drl-color-primary);
  color: var(--drl-color-primary);
}

.drl-page-header {
  display: flex;
  justify-content: space-between;
  gap: var(--drl-space-4);
  align-items: flex-start;
  margin-bottom: var(--drl-space-5);
}

.drl-page-header h1 {
  margin: 0;
  color: var(--drl-color-text);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  line-height: 1.25;
}

.drl-page-eyebrow,
.drl-page-description {
  margin: 0 0 var(--drl-space-2);
  color: var(--drl-color-muted);
}

.drl-page-eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.drl-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--drl-space-2);
  justify-content: flex-end;
}

.drl-period-context,
.drl-readiness,
.drl-state {
  border: 1px solid var(--drl-color-border);
  border-radius: var(--drl-radius-md);
  background: var(--drl-color-surface);
  box-shadow: var(--drl-shadow-sm);
}

.drl-period-context {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--drl-space-3);
  padding: var(--drl-space-3) var(--drl-space-4);
  margin-bottom: var(--drl-space-4);
}

.drl-period-context strong,
.drl-period-context span {
  display: block;
}

.drl-period-context span {
  color: var(--drl-color-muted);
  font-size: 0.85rem;
  margin-top: var(--drl-space-1);
}

.drl-status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 1.75rem;
  padding: 0 var(--drl-space-3);
  border-radius: 999px;
  background: var(--drl-color-surface-muted);
  color: var(--drl-color-text);
  border: 1px solid var(--drl-color-border);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.drl-status-chip[data-status="da_cong_bo"],
.drl-status-chip[data-status="da_khoa"],
.drl-status-chip[data-status="da_hoan_thanh"],
.drl-status-chip[data-status="ready"] {
  background: #e6f4ec;
  border-color: #b7dfc8;
  color: var(--drl-color-success);
}

.drl-status-chip[data-status="cvht_yeu_cau_bo_sung"],
.drl-status-chip[data-status="khoa_yeu_cau_ra_soat"],
.drl-status-chip[data-status="blocked"] {
  background: #fff4df;
  border-color: #f1cf8f;
  color: var(--drl-color-warning);
}

.drl-state {
  padding: var(--drl-space-6);
  text-align: center;
}

.drl-state h2 {
  margin: 0 0 var(--drl-space-2);
  font-size: 1.25rem;
  color: var(--drl-color-text);
}

.drl-state p {
  margin: 0 auto var(--drl-space-4);
  max-width: 42rem;
  color: var(--drl-color-muted);
}

.drl-readiness {
  padding: var(--drl-space-4);
}

.drl-readiness h3 {
  margin: 0 0 var(--drl-space-3);
  font-size: 1rem;
  color: var(--drl-color-text);
}

.drl-readiness ul {
  margin: 0;
  padding-left: var(--drl-space-5);
  color: var(--drl-color-muted);
}

.drl-readiness[data-ready="true"] {
  border-color: #b7dfc8;
  background: #f4fbf7;
}

.drl-score-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--drl-space-3);
  margin: 0;
}

.drl-score-comparison div {
  border: 1px solid var(--drl-color-border);
  border-radius: var(--drl-radius-md);
  background: var(--drl-color-surface);
  padding: var(--drl-space-3);
}

.drl-score-comparison dt {
  color: var(--drl-color-muted);
  font-size: 0.8rem;
}

.drl-score-comparison dd {
  margin: var(--drl-space-1) 0 0;
  color: var(--drl-color-text);
  font-size: 1.25rem;
  font-weight: 800;
}

.drl-workflow-timeline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--drl-space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.drl-workflow-timeline li {
  border: 1px solid var(--drl-color-border);
  border-radius: var(--drl-radius-md);
  background: var(--drl-color-surface);
  padding: var(--drl-space-3);
}

.drl-workflow-timeline li[data-current="true"] {
  border-color: var(--drl-color-primary);
  background: var(--drl-color-primary-soft);
}

.drl-workflow-timeline small {
  display: block;
  margin-top: var(--drl-space-2);
  color: var(--drl-color-muted);
}

@media (max-width: 720px) {
  .drl-page-header,
  .drl-period-context {
    flex-direction: column;
    align-items: stretch;
  }

  .drl-page-actions {
    justify-content: flex-start;
  }
}

/* ==========================================================================
   DRL i18n Flag Language Switcher Styles
   ========================================================================== */

.drl-flag-svg {
  display: inline-block;
  vertical-align: middle;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  flex-shrink: 0;
}

/* Dropdown Variant */
.drl-flag-dropdown-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-family: inherit;
  font-size: 0.85rem;
  z-index: 100;
}

.drl-flag-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.65rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  color: var(--text-primary, #f8fafc);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.85rem;
  font-weight: 500;
  user-select: none;
}

.drl-flag-trigger-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.drl-flag-trigger-btn:focus-visible {
  outline: 2px solid var(--primary, #3b82f6);
  outline-offset: 1px;
}

.drl-flag-caret {
  color: var(--text-muted, #94a3b8);
  transition: transform 0.2s ease;
}

.drl-flag-dropdown-wrapper.is-open .drl-flag-caret {
  transform: rotate(180deg);
}

.drl-flag-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 145px;
  background: #1e293b;
  background: var(--bg-secondary, #1e293b);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  padding: 0.35rem;
  z-index: 1000;
  animation: drlFlagMenuFade 0.15s ease-out;
}

@keyframes drlFlagMenuFade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.drl-flag-menu-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.65rem;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--text-primary, #f8fafc);
  font-size: 0.85rem;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease;
}

.drl-flag-menu-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.drl-flag-menu-item.active {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  font-weight: 600;
}

.drl-flag-check {
  margin-left: auto;
  color: #60a5fa;
  font-weight: 700;
}

/* Pill Group Variant */
.drl-flag-pill-group {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: rgba(0, 0, 0, 0.2);
  padding: 3px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.drl-flag-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary, #94a3b8);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.drl-flag-pill-btn:hover {
  color: var(--text-primary, #ffffff);
  background: rgba(255, 255, 255, 0.08);
}

.drl-flag-pill-btn.active {
  background: var(--bg-tertiary, #334155);
  color: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  font-weight: 600;
}

.drl-flag-pill-compact .drl-flag-pill-btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.78rem;
}


/* PCTU brand logo (Trường Đại học Phan Châu Trinh) */
.brand-logo.brand-logo-img,
.login-header .logo.logo-img {
  display: block;
  object-fit: contain;
  background: none;
  box-shadow: none;
  border-radius: 0;
}
.brand-logo.brand-logo-img { width: 46px; height: 40px; flex: 0 0 46px; }
.login-header .logo.logo-img { width: 92px; height: 80px; margin: 0 auto var(--drl-space-2); }
.login-school { margin: 0 0 1rem; text-align: center; color: var(--text-primary); font-weight: 700; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.02em; line-height: 1.35; }
@media (max-width: 768px) {
  .sidebar .brand-logo.brand-logo-img { width: 40px; height: 35px; flex-basis: 40px; }
}