/* ==========================================================================
   ABOUT PAGE MODERN REFRESH (LIVING BACKGROUND, EXECUTIVE LETTER, ROADMAP, VALUES & ORG CHART)
   ========================================================================== */

/* 1. Page Wrapper & Section Layering to allow Dynamic Living BG to shine through */
.about-page-wrapper {
  background-color: #f8fafc;
  position: relative;
  overflow-x: hidden;
}

.about-page-wrapper .section {
  position: relative;
  z-index: 2;
  background: transparent;
}

.about-page-wrapper .section-muted {
  background: rgba(241, 245, 249, 0.68);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid rgba(16, 90, 170, 0.06);
  border-bottom: 1px solid rgba(16, 90, 170, 0.06);
}

.about-page-wrapper .breadcrumb-wrap {
  position: relative;
  z-index: 3;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(16, 90, 170, 0.08);
}

/* 2. Elevated Page Hero */
.about-page-wrapper .page-hero {
  position: relative;
  z-index: 2;
  background: linear-gradient(135deg, rgba(11, 49, 88, 0.95) 0%, rgba(16, 90, 170, 0.9) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 3px solid var(--aacc-red-600);
  padding: clamp(54px, 6.5vw, 88px) 0;
  overflow: hidden;
}

.about-page-wrapper .page-hero .hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}

.about-page-wrapper .hero-eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #93c5fd;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.about-page-wrapper .hero-eyebrow-badge .eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 10px #38bdf8;
  animation: pulseDot 2s infinite;
}

.about-page-wrapper .hero-title {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 16px;
  max-width: 900px;
  letter-spacing: -0.01em;
}

.about-page-wrapper .hero-desc {
  font-size: clamp(1.05rem, 1.25vw, 1.18rem);
  line-height: 1.75;
  color: #dbeafe;
  max-width: 800px;
}

/* 3. Parchment Executive Letter Card (Thư ngỏ Chủ tịch HĐTV) */
.about-letter-card {
  max-width: 940px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(16, 90, 170, 0.14);
  border-top: 4px solid var(--aacc-red-600);
  border-radius: 22px;
  padding: clamp(32px, 5.5vw, 56px);
  box-shadow: 0 25px 60px -15px rgba(11, 49, 88, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s ease;
}

.about-letter-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 70px -15px rgba(11, 49, 88, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
}

.letter-watermark-seal {
  position: absolute;
  top: -24px;
  right: -24px;
  color: var(--aacc-blue-800);
  opacity: 0.04;
  pointer-events: none;
  transform: rotate(14deg);
  z-index: 0;
}

.letter-header {
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.letter-title {
  font-size: clamp(1.6rem, 2.5vw, 2.15rem);
  font-weight: 800;
  color: var(--aacc-blue-900);
  line-height: 1.3;
  margin-top: 8px;
}

.letter-content-body {
  position: relative;
  z-index: 1;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ink-800);
}

.letter-content-body p {
  margin-bottom: 18px;
}

.letter-salutation {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--aacc-blue-800);
  font-weight: 700;
  margin-bottom: 22px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(16, 90, 170, 0.2);
}

.letter-highlight-quote {
  position: relative;
  margin: 28px 0;
  padding: 22px 28px;
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.85) 0%, rgba(254, 242, 242, 0.65) 100%);
  border-left: 4px solid var(--aacc-red-600);
  border-radius: 0 14px 14px 0;
  font-size: 1.08rem;
  color: var(--aacc-blue-900);
  font-style: italic;
  box-shadow: 0 6px 18px rgba(11, 49, 88, 0.04);
}

.letter-highlight-quote p {
  margin: 0;
}

.letter-signature-block {
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(16, 90, 170, 0.14);
  display: flex;
  justify-content: flex-end;
}

.signature-details {
  text-align: right;
}

.sig-rep {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin-bottom: 6px;
}

.sig-name {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--aacc-blue-900);
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.sig-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--aacc-red-600);
  margin-top: 4px;
}

/* 4. Inheritance & Milestone Timeline (Lịch sử hình thành) */
.grid-2col-equal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}

.about-narrative-card,
.about-milestones-card {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(16, 90, 170, 0.12);
  border-radius: 20px;
  padding: clamp(28px, 4.5vw, 42px);
  box-shadow: 0 16px 38px -10px rgba(11, 49, 88, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  display: flex;
  flex-direction: column;
}

.narrative-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(16, 90, 170, 0.08);
  color: var(--aacc-blue-800);
  font-size: 0.8125rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.narrative-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin-bottom: 18px;
  line-height: 1.35;
}

.about-narrative-card p {
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--ink-700);
  margin-bottom: 16px;
}

.about-narrative-card p:last-child {
  margin-bottom: 0;
}

.milestones-header-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(16, 90, 170, 0.08);
}

.about-milestones-timeline {
  display: flex;
  flex-direction: column;
  gap: 26px;
  position: relative;
}

.about-milestones-timeline::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(to bottom, #105aaa 0%, #1699d6 50%, #be1e2d 100%);
  opacity: 0.35;
}

.milestone-item {
  display: flex;
  gap: 20px;
  position: relative;
  z-index: 1;
  transition: transform 0.25s ease;
}

.milestone-item:hover {
  transform: translateX(4px);
}

.milestone-node {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  transition: transform 0.25s ease;
}

.milestone-item:hover .milestone-node {
  transform: scale(1.1);
}

.milestone-node-blue {
  background: linear-gradient(135deg, #105aaa, #0b3158);
  box-shadow: 0 8px 20px rgba(16, 90, 170, 0.35);
}

.milestone-node-sapphire {
  background: linear-gradient(135deg, #1699d6, #0e72a8);
  box-shadow: 0 8px 20px rgba(22, 153, 214, 0.35);
}

.milestone-node-red {
  background: linear-gradient(135deg, #be1e2d, #8f121e);
  box-shadow: 0 8px 20px rgba(190, 30, 45, 0.35);
}

.milestone-content {
  flex: 1;
}

.milestone-chip {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 12px;
  background: rgba(16, 90, 170, 0.08);
  color: var(--aacc-blue-800);
  margin-bottom: 6px;
}

.milestone-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--aacc-blue-900);
  margin-bottom: 6px;
  line-height: 1.35;
}

.milestone-content p {
  font-size: 0.9rem;
  color: var(--ink-700);
  line-height: 1.6;
  margin: 0;
}

/* 5. Vision & Mission Cards (Tầm nhìn & Sứ mệnh) */
.grid-2col-equal-center {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.vision-mission-card {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(16, 90, 170, 0.14);
  border-radius: 20px;
  padding: clamp(32px, 5vw, 44px);
  box-shadow: 0 16px 40px -10px rgba(11, 49, 88, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.vision-card {
  border-top: 4px solid var(--aacc-blue-800);
}

.mission-card {
  border-top: 4px solid var(--aacc-cyan-500);
}

.vision-mission-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 50px -10px rgba(11, 49, 88, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
  border-color: rgba(16, 90, 170, 0.3);
}

.vm-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: transform 0.3s ease;
}

.vision-card .vm-icon-box {
  background: linear-gradient(135deg, rgba(16, 90, 170, 0.12), rgba(16, 90, 170, 0.04));
  color: var(--aacc-blue-800);
}

.mission-card .vm-icon-box {
  background: linear-gradient(135deg, rgba(22, 153, 214, 0.14), rgba(22, 153, 214, 0.04));
  color: var(--aacc-cyan-600);
}

.vision-mission-card:hover .vm-icon-box {
  transform: scale(1.08) rotate(4deg);
}

.vm-title {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin: 6px 0 14px;
}

.vm-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-800);
  margin: 0;
}

/* 6. Core Values Grid (Năm giá trị cốt lõi) */
.core-values-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-bottom: 36px;
}

.core-val-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(16, 90, 170, 0.12);
  border-radius: 18px;
  padding: 26px 20px;
  box-shadow: 0 12px 30px -8px rgba(11, 49, 88, 0.06), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease, border-color 0.28s ease;
}

.core-val-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -10px rgba(11, 49, 88, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
  border-color: rgba(16, 90, 170, 0.3);
}

.core-val-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: transform 0.25s ease;
}

.core-val-card:hover .core-val-icon {
  transform: scale(1.1);
}

.val-icon-blue {
  background: #eff6ff;
  color: var(--aacc-blue-800);
  border: 1px solid rgba(16, 90, 170, 0.15);
}

.val-icon-sapphire {
  background: #f0f9ff;
  color: #0284c7;
  border: 1px solid rgba(2, 132, 199, 0.15);
}

.val-icon-red {
  background: #fef2f2;
  color: var(--aacc-red-600);
  border: 1px solid rgba(190, 30, 45, 0.15);
}

.val-icon-amber {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid rgba(217, 119, 6, 0.15);
}

.val-icon-emerald {
  background: #f0fdf4;
  color: #059669;
  border: 1px solid rgba(5, 150, 105, 0.15);
}

.val-micro-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 10px;
  background: rgba(16, 90, 170, 0.06);
  color: var(--ink-500);
  margin-bottom: 8px;
}

.core-val-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin-bottom: 8px;
}

.core-val-desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ink-700);
  margin: 0;
}

/* 7. Motto Callout Banner (Phương châm hoạt động) */
.about-motto-callout {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 0%, rgba(240, 246, 254, 0.92) 100%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(16, 90, 170, 0.15);
  border-left: 5px solid var(--aacc-red-600);
  border-radius: 16px;
  padding: 24px 30px;
  display: flex;
  align-items: center;
  gap: 22px;
  box-shadow: 0 14px 36px -10px rgba(11, 49, 88, 0.08), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
}

.motto-callout-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
}

.motto-callout-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin-bottom: 6px;
}

.motto-callout-text {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--ink-700);
  margin: 0;
}

/* 8. Sơ đồ cơ cấu tổ chức & Điều hành */
.org-chart {
  max-width: 1040px;
  margin: 0 auto;
  position: relative;
}

.org-node.root {
  background: linear-gradient(135deg, var(--aacc-blue-900) 0%, var(--aacc-blue-800) 100%);
  color: #ffffff;
  border-radius: 16px;
  padding: 22px 28px;
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  box-shadow: 0 16px 36px rgba(11, 49, 88, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
  z-index: 3;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.org-node.root:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 42px rgba(11, 49, 88, 0.32);
}

.org-node-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 3px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
  color: #7dd3fc;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.org-node.root h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.org-node-sub {
  font-size: 0.88rem;
  color: #d0e4f7;
}

/* Vertical Connectors (Root -> Exec and Exec -> Bus) */
.org-connector-vert {
  width: 2px;
  height: 36px;
  margin: 0 auto;
  background-color: #94a3b8;
  position: relative;
  z-index: 2;
}

.org-node.exec {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(16, 90, 170, 0.18);
  border-left: 5px solid var(--aacc-red-600);
  border-radius: 16px;
  padding: 22px 28px;
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
  box-shadow: 0 16px 36px rgba(11, 49, 88, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  position: relative;
  z-index: 3;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.org-node.exec:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 42px rgba(11, 49, 88, 0.15);
}

.org-node-badge.badge-exec {
  background: rgba(190, 30, 45, 0.08);
  color: var(--aacc-red-600);
}

.org-node.exec h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--aacc-blue-900);
  margin-bottom: 6px;
}

.org-node.exec .org-node-sub {
  font-size: 0.92rem;
  color: var(--ink-800);
  margin-bottom: 4px;
}

.org-node-detail {
  font-size: 0.82rem;
  color: var(--ink-500);
}

/* Distribution Bus Container */
.org-tree-container {
  position: relative;
  margin-top: 0;
}

/* Clean Horizontal Bus Bar Spanning from Center of Col 1 to Center of Col 4 */
.org-bus-bar {
  position: relative;
  height: 2px;
  background-color: #94a3b8;
  margin: 0 auto;
  width: calc(100% - ((100% - 60px) / 4));
  z-index: 1;
}

/* The 4 Department Cards Grid */
.org-branches {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

.org-dept {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(16, 90, 170, 0.12);
  border-top: 3px solid var(--aacc-blue-800);
  border-radius: 16px;
  padding: 24px 20px;
  box-shadow: 0 10px 25px -5px rgba(11, 49, 88, 0.06), 0 0 0 1px rgba(255, 255, 255, 0.7) inset;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  margin-top: 36px;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease, border-color 0.28s ease;
}

.org-dept:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -8px rgba(11, 49, 88, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.9) inset;
  border-color: rgba(16, 90, 170, 0.3);
}

/* Clean, Simple Vertical Stem Connecting Bus Bar directly into each Department Card */
.org-dept::before {
  content: '';
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 36px;
  background-color: #94a3b8;
  pointer-events: none;
}

.dept-icon-pill {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  transition: transform 0.25s ease;
}

.org-dept:hover .dept-icon-pill {
  transform: scale(1.1);
}

.dept-icon-1 { background: #eff6ff; color: var(--aacc-blue-800); }
.dept-icon-2 { background: #f0fdf4; color: #16a34a; }
.dept-icon-3 { background: #fef2f2; color: var(--aacc-red-600); }
.dept-icon-4 { background: #f5f3ff; color: #7c3aed; }

.dept-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--aacc-blue-900);
  margin-bottom: 8px;
  line-height: 1.35;
}

.dept-desc {
  font-size: 0.85rem;
  color: var(--ink-700);
  line-height: 1.55;
  margin: 0;
}

/* 9. Responsive Adaptations for About Page */
@media (max-width: 1199px) {
  .core-values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1023px) {
  .grid-2col-equal,
  .grid-2col-equal-center {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .org-bus-bar {
    width: calc(100% - ((100% - 20px) / 2));
  }

  .org-branches {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 639px) {
  .core-values-grid {
    grid-template-columns: 1fr;
  }

  .org-bus-bar {
    display: none;
  }

  .org-branches {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .org-dept {
    margin-top: 16px;
  }

  .dept-stem {
    top: -16px;
    height: 16px;
  }

  .about-motto-callout {
    flex-direction: column;
    text-align: center;
    gap: 14px;
  }

  .about-letter-card {
    padding: 24px 18px;
  }

  .letter-signature-block {
    justify-content: center;
  }

  .signature-details {
    text-align: center;
  }

  .about-milestones-timeline::before {
    left: 20px;
  }

  .milestone-node {
    width: 42px;
    height: 42px;
  }
}