/* ==========================================================================
   LONG THANH DEVELOPMENT CONNECT - DESIGN SYSTEM & ADAPTIVE STYLES
   Optimized for Ultra-High Standards: Desktop 4K/QHD & Mobile UX
   ========================================================================== */

:root {
  /* Color Palette - International Business / Strategic Intelligence */
  --navy: #10243A;
  --navy-dark: #0A1726;
  --navy-surface: #142E4A;
  --blue: #1769AA;
  --blue-light: #2185D0;
  --blue-soft: #E0EEFA;
  --gold: #D5AD60;
  --gold-hover: #E4C27E;
  --gold-subtle: rgba(213, 173, 96, 0.12);
  --white: #FFFFFF;
  --light: #F4F7FA;
  --light-card: #FFFFFF;
  --text: #2C3E50;
  --text-muted: #5A6E82;
  --line: #E2E8F0;
  --line-subtle: rgba(226, 232, 240, 0.7);

  /* Elevation Shadows */
  --shadow-sm: 0 1px 3px rgba(16, 36, 58, 0.05), 0 1px 2px rgba(16, 36, 58, 0.08);
  --shadow-md: 0 4px 14px rgba(16, 36, 58, 0.08), 0 2px 6px rgba(16, 36, 58, 0.04);
  --shadow-lg: 0 12px 28px rgba(16, 36, 58, 0.12), 0 4px 10px rgba(16, 36, 58, 0.06);
  --shadow-xl: 0 20px 40px rgba(16, 36, 58, 0.16);

  /* Layout Constants */
  --max: 1240px;
  --header-h: 72px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

/* ---------------- CSS Reset & Typography ---------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Be Vietnam Pro', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  line-height: 1.68;
  background: var(--white);
  overflow-x: hidden;
  word-break: break-word;
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}
a:hover { color: var(--blue-light); }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

.num {
  font-family: 'Inter', system-ui, sans-serif;
  font-feature-settings: 'tnum' on, 'cv05' on;
}

h1, h2, h3, h4 {
  color: var(--navy);
  line-height: 1.26;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 10px;
}

/* ---------------- Sections ---------------- */
.section {
  padding: clamp(48px, 6vw, 92px) 0;
}
.section.alt {
  background: var(--light);
}
.section.dark {
  background: var(--navy);
  color: #CBD5E1;
}
.section.dark h2, .section.dark h3, .section.dark h4 {
  color: var(--white);
}

.sec-head {
  max-width: 780px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.sec-head h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.35rem);
  margin-bottom: 12px;
}
.sec-head p {
  color: var(--text-muted);
  font-size: clamp(0.95rem, 1.2vw, 1.05rem);
}
.section.dark .sec-head p {
  color: #94A3B8;
}

.note {
  font-size: 0.85rem;
  border-left: 3px solid var(--gold);
  background: #FFFAF0;
  padding: 14px 18px;
  margin-top: 26px;
  color: #6B5A32;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.6;
}
.dark .note {
  background: rgba(213, 173, 96, 0.09);
  color: #EBDAB8;
}

/* ---------------- Button System ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: inherit;
  text-align: center;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}
.btn:active {
  transform: scale(0.98);
}
.btn-gold {
  background: var(--gold);
  color: var(--navy);
  box-shadow: 0 4px 12px rgba(213, 173, 96, 0.25);
}
.btn-gold:hover {
  background: var(--gold-hover);
  color: var(--navy);
  box-shadow: 0 6px 18px rgba(213, 173, 96, 0.35);
  transform: translateY(-1px);
}
.btn-outline {
  border-color: rgba(255, 255, 255, 0.8);
  color: var(--white);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
  transform: translateY(-1px);
}
.btn-blue {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(23, 105, 170, 0.25);
}
.btn-blue:hover {
  background: var(--blue-light);
  box-shadow: 0 6px 20px rgba(23, 105, 170, 0.35);
  transform: translateY(-1px);
}

/* ---------------- Header & Navigation (Desktop & Mobile) ---------------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background-color 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              height 0.3s ease;
  background: transparent;
}
header.scrolled, body.no-hero header {
  background: rgba(16, 36, 58, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 700;
  line-height: 1.15;
  flex-shrink: 0;
}
.logo-mark {
  width: 38px;
  height: 38px;
  border: 2px solid var(--gold);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  box-shadow: 0 0 12px rgba(213, 173, 96, 0.2);
  flex-shrink: 0;
}
.logo > span {
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}
.logo small {
  display: block;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-weight: 600;
}

/* Desktop Menu */
.menu {
  display: none;
  list-style: none;
  gap: 4px;
  align-items: center;
}
.menu a {
  color: #E2E8F0;
  font-size: 0.84rem;
  font-weight: 500;
  padding: 8px 11px;
  border-radius: 4px;
  white-space: nowrap;
  position: relative;
  transition: all 0.2s ease;
}
.menu a:hover {
  color: var(--gold);
  background: rgba(255, 255, 255, 0.06);
}
.menu a.cur {
  color: var(--gold);
  font-weight: 700;
}
.menu a.cur::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lang {
  display: flex;
  align-items: center;
  gap: 3px;
  color: #CBD5E1;
  font-size: 0.78rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3px 6px;
  border-radius: 4px;
}
.lang button {
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
  font: inherit;
  padding: 3px 5px;
  border-radius: 3px;
  transition: all 0.15s ease;
}
.lang button.active {
  color: var(--gold);
  font-weight: 800;
  background: rgba(213, 173, 96, 0.18);
}

.nav-cta {
  display: none;
  padding: 9px 16px;
  font-size: 0.78rem;
  min-height: 38px;
}

.burger {
  background: none;
  border: 0;
  color: var(--white);
  font-size: 1.7rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s ease;
}
.burger:active { background: rgba(255, 255, 255, 0.12); }

/* Mobile Menu Slide-down Drawer */
.mobile-menu {
  display: none;
  background: var(--navy-dark);
  padding: 16px 20px calc(24px + var(--safe-bottom));
  max-height: calc(100vh - 64px);
  max-height: calc(100dvh - 64px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.45);
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  color: #E2E8F0;
  padding: 13px 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.96rem;
  font-weight: 500;
}
.mobile-menu a.cur {
  color: var(--gold);
  font-weight: 700;
}
.mobile-menu a:active {
  color: var(--gold);
  background: rgba(255, 255, 255, 0.04);
}

/* Desktop Breakpoints (>= 1180px) */
@media (min-width: 1180px) {
  .nav { height: 76px; }
  .logo-mark { width: 42px; height: 42px; font-size: 1.15rem; }
  .logo > span { font-size: 0.98rem; }
  .logo small { font-size: 0.62rem; }
  .menu { display: flex; }
  .burger { display: none; }
  .nav-cta { display: inline-flex; }
  .mobile-menu { display: none !important; }
}

/* ---------------- Inner Page Header ---------------- */
.page-head {
  background: linear-gradient(130deg, var(--navy-dark) 0%, var(--navy) 60%, #163E63 100%);
  color: #CBD5E1;
  padding: clamp(96px, 12vw, 136px) 0 clamp(36px, 5vw, 56px);
  position: relative;
  overflow: hidden;
}
.page-head::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 360px;
  height: 360px;
  border: 1px solid rgba(213, 173, 96, 0.2);
  border-radius: 50%;
  pointer-events: none;
}
.page-head h1 {
  color: var(--white);
  font-size: clamp(1.65rem, 4vw, 2.7rem);
  margin-bottom: 12px;
  max-width: 860px;
}
.page-head p {
  max-width: 740px;
  font-size: clamp(0.94rem, 1.3vw, 1.05rem);
  line-height: 1.65;
}

/* ---------------- 1. Hero Section (Ultra Modern Desktop & Mobile) ---------------- */
.hero {
  position: relative;
  min-height: 82vh;
  min-height: 82svh;
  display: flex;
  align-items: center;
  color: var(--white);
  background: url(assets/hero.jpg) center 30% / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, 
              rgba(16, 36, 58, 0.94) 0%, 
              rgba(16, 36, 58, 0.82) 50%, 
              rgba(16, 36, 58, 0.95) 100%);
  z-index: 1;
}
@media (min-width: 768px) {
  .hero::before {
    background: linear-gradient(90deg, 
                rgba(16, 36, 58, 0.95) 0%, 
                rgba(16, 36, 58, 0.82) 48%, 
                rgba(16, 36, 58, 0.45) 85%,
                rgba(16, 36, 58, 0.3) 100%);
  }
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: clamp(92px, 13vw, 130px);
  padding-bottom: clamp(48px, 6vw, 72px);
  width: 100%;
}
.hero h1 {
  color: var(--white);
  font-size: clamp(1.85rem, 4.8vw, 3.45rem);
  max-width: 860px;
  margin-bottom: 18px;
  line-height: 1.2;
}
.hero h1 span {
  color: var(--gold);
  background: linear-gradient(135deg, #F5D78E 0%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  max-width: 650px;
  font-size: clamp(0.98rem, 1.4vw, 1.15rem);
  color: #DBE4EE;
  margin-bottom: 30px;
  line-height: 1.65;
}
.hero .actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}
.hero .actions .btn {
  width: 100%;
}
@media (min-width: 540px) {
  .hero .actions {
    flex-direction: row;
    width: auto;
  }
  .hero .actions .btn {
    width: auto;
  }
}
.hero-caption {
  position: relative;
  margin-top: 32px;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.65);
  font-style: italic;
  line-height: 1.4;
}
@media (min-width: 768px) {
  .hero-caption {
    position: absolute;
    right: 28px;
    bottom: 16px;
    margin-top: 0;
  }
}

/* ---------------- Strip (KNOW - CONNECT - EXECUTE) ---------------- */
.strip {
  background: var(--navy);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.strip .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}
.strip-item {
  padding: 18px 0;
  color: #CBD5E1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.92rem;
  line-height: 1.55;
}
.strip-item b {
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.14em;
  display: block;
  font-size: 0.88rem;
  margin-bottom: 4px;
}
.strip-item:last-child {
  border-bottom: 0;
}
@media (min-width: 768px) {
  .strip .container {
    grid-template-columns: repeat(3, 1fr);
  }
  .strip-item {
    border-bottom: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    padding: 26px 24px;
  }
  .strip-item:last-child {
    border-right: 0;
  }
}

/* ---------------- 2. Region & Radial Hub Diagram ---------------- */
.region {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}
@media (min-width: 980px) {
  .region {
    grid-template-columns: 1fr 1.15fr;
  }
}

.hub {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  max-width: 440px;
  margin: 12px auto;
}
@media (min-width: 768px) {
  .hub {
    max-width: 520px;
  }
}
.hub svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.hub-center {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 35%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: var(--white);
  display: grid;
  place-items: center;
  text-align: center;
  font-size: clamp(0.62rem, 1.8vw, 0.82rem);
  font-weight: 700;
  line-height: 1.22;
  padding: 8px;
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 8px rgba(213, 173, 96, 0.16), var(--shadow-lg);
  z-index: 3;
}
.hub-node {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 26%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--blue);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: clamp(0.56rem, 1.6vw, 0.74rem);
  line-height: 1.2;
  padding: 6px;
  cursor: default;
  transition: all 0.24s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-md);
  z-index: 3;
}
.hub-node b {
  color: var(--navy);
  font-size: 1.08em;
  display: block;
  margin-bottom: 2px;
}
.hub-node:hover, .hub-node:active {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 8px 20px rgba(23, 105, 170, 0.35);
}
.hub-node:hover b, .hub-node:active b {
  color: var(--white);
}
.hub-line {
  stroke: var(--blue);
  stroke-width: 0.45;
  stroke-dasharray: 1.6 1.4;
  opacity: 0.65;
}
.hub-ring {
  fill: none;
  stroke: var(--gold);
  stroke-width: 0.35;
  opacity: 0.6;
}

/* ---------------- Responsive Grid & Cards ---------------- */
.grid {
  display: grid;
  gap: clamp(16px, 2.5vw, 24px);
}
@media (min-width: 600px) {
  .g2 { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .g4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 980px) {
  .g3 { grid-template-columns: repeat(3, 1fr); }
  .g4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--light-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.24s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.24s ease;
}
.card:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.card h3 {
  font-size: 1.08rem;
  margin-bottom: 12px;
}
.card ul { list-style: none; }
.card li {
  padding: 6px 0 6px 18px;
  position: relative;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text);
}
.card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 7px;
  height: 2px;
  background: var(--gold);
}
.card .idx {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 2.4vw, 2.1rem);
  color: var(--gold);
  line-height: 1;
  margin-bottom: 12px;
}

.dark .card {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  color: #CBD5E1;
  box-shadow: none;
}
.dark .card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--gold);
}
a.card {
  color: inherit;
  display: block;
}

/* ---------------- 4. Intelligence Center (Search & Filters) ---------------- */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  padding: 9px 18px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 30px;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
  min-height: 40px;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}
.tab:hover {
  border-color: var(--navy);
  color: var(--navy);
}
.tab.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
  box-shadow: var(--shadow-sm);
}

.filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 22px;
}
@media (min-width: 600px) {
  .filters {
    grid-template-columns: repeat(2, 1fr);
  }
  .filters input[type=search] {
    grid-column: 1 / -1;
  }
}
@media (min-width: 980px) {
  .filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
  }
  .filters input[type=search] {
    flex: 1.5;
    min-width: 260px;
  }
  .filters select {
    flex: 1;
    min-width: 150px;
  }
}
.filters select, .filters input[type=search] {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.9rem;
  background: var(--white);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.filters select:focus, .filters input[type=search]:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 105, 170, 0.15);
}

.records {
  display: grid;
  gap: 14px;
}
.record {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(18px, 2.5vw, 24px);
  display: grid;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.record:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.record h4 {
  color: var(--navy);
  font-size: clamp(1.02rem, 1.4vw, 1.15rem);
  line-height: 1.4;
}
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.b-official { background: var(--blue-soft); color: var(--blue); }
.b-ref { background: #EEF2F6; color: #475569; }
.b-analysis { background: #FDF4E3; color: #8A6A24; border: 1px solid rgba(213, 173, 96, 0.3); }

.analysis {
  font-size: 0.86rem;
  background: var(--light);
  border-left: 3px solid var(--gold);
  padding: 10px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.6;
}
.empty {
  padding: 40px 20px;
  text-align: center;
  color: #94A3B8;
  background: var(--white);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
}

/* ---------------- 6. Development Programs ---------------- */
.prog {
  display: grid;
  gap: 14px;
}
.prog-row {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 18px;
  color: inherit;
  transition: all 0.22s ease;
}
a.prog-row:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--gold);
  transform: translateY(-2px);
}
.prog-row .n {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  color: var(--gold);
  font-size: 1.35rem;
  line-height: 1;
}
.prog-row h3 {
  font-size: 1.02rem;
  margin-bottom: 4px;
}
.prog-row .st {
  font-size: 0.72rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 6px;
  font-weight: 700;
}
@media (min-width: 768px) {
  .prog { grid-template-columns: 1fr 1fr; }
}

.prog-list { display: grid; gap: 18px; }
.prog-card {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 22px;
}
@media (min-width: 768px) {
  .prog-card {
    grid-template-columns: 60px 1fr;
    gap: 18px;
    padding: 28px;
  }
}
.prog-card dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 20px;
  margin: 14px 0;
  font-size: 0.9rem;
}
.prog-card dt {
  font-weight: 700;
  color: var(--navy);
  margin-top: 8px;
}
.prog-card dd {
  color: var(--text);
  margin-left: 0;
}
@media (min-width: 768px) {
  .prog-card dl {
    grid-template-columns: 180px 1fr;
  }
  .prog-card dt { margin-top: 0; }
}

/* ---------------- 8. Insights & Articles ---------------- */
.post {
  display: flex;
  flex-direction: column;
}
.post .cat {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
  font-weight: 700;
  margin-bottom: 10px;
}
.post h3 {
  font-size: 1.05rem;
  flex: 1;
  line-height: 1.45;
}
.post .pm {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.article {
  max-width: 800px;
}
.article p {
  margin-bottom: 16px;
  line-height: 1.75;
  font-size: 1.02rem;
}
.article h3 {
  margin: 32px 0 12px;
  font-size: 1.25rem;
}
.article ul {
  margin: 0 0 18px 22px;
}
.article li {
  margin-bottom: 8px;
  line-height: 1.65;
}
.legend {
  font-size: 0.84rem;
  margin-bottom: 24px;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}
.refs {
  font-size: 0.88rem;
  word-break: break-all;
}

/* ---------------- 10. Representative Section ---------------- */
.rep {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}
.avatar {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--navy) 0%, #1A446C 100%);
  display: grid;
  place-items: center;
  color: var(--gold);
  font-family: 'Inter', sans-serif;
  font-size: clamp(3rem, 5vw, 4.2rem);
  font-weight: 800;
  max-width: 260px;
  width: 100%;
  margin: 0 auto;
  border: 2px solid var(--gold);
  box-shadow: 0 12px 32px rgba(16, 36, 58, 0.18);
}
.rep h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
}
.rep .role {
  color: var(--blue);
  font-weight: 700;
  margin: 6px 0 2px;
  font-size: 1.05rem;
}
.rep .role-en {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.rep p {
  margin-bottom: 14px;
  line-height: 1.7;
}
.kce {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--navy);
  margin-top: 18px;
  font-size: 1.1rem;
}
.kce span { color: var(--gold); }
@media (min-width: 768px) {
  .rep {
    grid-template-columns: 280px 1fr;
    gap: 40px;
  }
  .avatar { margin: 0; }
}

/* ---------------- Forms & Controls ---------------- */
.form {
  display: grid;
  gap: 16px;
  width: 100%;
}
.form.card {
  padding: clamp(20px, 3vw, 32px);
}
.form.card:hover {
  transform: none;
  border-color: var(--line);
}
.form label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--navy);
  display: block;
  margin-bottom: 6px;
}
.form input, .form select, .form textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.94rem;
  background: var(--white);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.form select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
  padding-right: 36px;
}
.form textarea {
  min-height: 96px;
  resize: vertical;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 105, 170, 0.15);
}

.row2 {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
@media (min-width: 600px) {
  .row2 { grid-template-columns: 1fr 1fr; }
}

.checks {
  display: grid;
  gap: 10px;
}
@media (min-width: 600px) {
  .checks { grid-template-columns: 1fr 1fr; }
}
.checks label {
  font-weight: 400;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.45;
  cursor: pointer;
  padding: 4px 0;
  color: inherit;
}
.checks input {
  width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--gold);
  cursor: pointer;
}

.form-msg {
  display: none;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: #E7F5EC;
  color: #1D6B3A;
  font-size: 0.9rem;
  line-height: 1.5;
  border: 1px solid #C4E8D1;
}
.form-msg.err {
  background: #FDECEC;
  color: #B91C1C;
  border-color: #FECACA;
}
.small {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.dark .form label { color: var(--white); }
.dark .small { color: #94A3B8; }

/* ---------------- Modals (Adaptive Bottom Sheet on Mobile, Centered Modal on Desktop) ---------------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 23, 38, 0.78);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
.modal.open { display: flex; }
.modal-box {
  background: var(--white);
  border-radius: 16px 16px 0 0;
  max-width: 660px;
  width: 100%;
  max-height: 90vh;
  max-height: 90dvh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 24px 20px calc(24px + var(--safe-bottom));
  position: relative;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.35);
  animation: slideSheet 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideSheet {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.modal-close {
  position: absolute;
  right: 14px;
  top: 14px;
  background: #F1F5F9;
  border: 0;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  line-height: 1;
  transition: all 0.15s ease;
}
.modal-close:hover {
  background: #E2E8F0;
  color: var(--navy);
}
@media (min-width: 640px) {
  .modal {
    align-items: center;
    padding: 20px;
  }
  .modal-box {
    border-radius: var(--radius-md);
    padding: 34px;
    max-height: 86vh;
    animation: fadeScale 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes fadeScale {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
  }
}

/* ---------------- Footer ---------------- */
footer {
  background: var(--navy-dark);
  color: #94A3B8;
  padding: clamp(48px, 6vw, 68px) 0 calc(32px + var(--safe-bottom));
  font-size: 0.9rem;
}
.foot {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-bottom: 36px;
}
@media (min-width: 600px) {
  .foot { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 980px) {
  .foot { grid-template-columns: 1.6fr 1fr 1fr 1fr; }
}
footer h4 {
  color: var(--white);
  font-size: 0.96rem;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
footer ul { list-style: none; }
footer li { padding: 5px 0; }
footer a { color: #94A3B8; }
footer a:hover { color: var(--gold); }
.disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  font-size: 0.8rem;
  line-height: 1.68;
}

/* ---------------- Scroll Animations ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------------- Ultra-Wide Screens (4K / QHD >= 1600px) ---------------- */
@media (min-width: 1600px) {
  :root {
    --max: 1400px;
  }
  body {
    font-size: 1.05rem;
  }
  .sec-head h2 {
    font-size: 2.6rem;
  }
}