/* ==========================================================================
   Program Timeline Stylesheet - Tiệc Welcome & Tiệc Gala
   Trang Đại hội Mường Thanh 2026 - Giao diện Timeline hiện đại
   ========================================================================== */

:root {
  --prg-accent: #7c3aed;
  --prg-accent-rgb: 124, 58, 237;
  --prg-accent-2: #ec4899;
  --prg-gold: #f59e0b;
  --prg-hero-bg: linear-gradient(135deg, #090d24 0%, #25104d 42%, #5b21b6 80%, #7c3aed 100%);
  --prg-line: #e2e8f0;
  --prg-card-bg: #ffffff;
  --prg-card-border: #f1f5f9;
  --prg-text-dark: #0f172a;
  --prg-text-muted: #64748b;
  --prg-radius: 20px;
}

/* Biến màu riêng cho Tiệc Welcome (Khai mạc, Miss & Văn nghệ) */
.prg-theme-welcome {
  --prg-accent: #7c3aed;
  --prg-accent-rgb: 124, 58, 237;
  --prg-accent-2: #ec4899;
  --prg-gold: #f59e0b;
  --prg-hero-bg: linear-gradient(135deg, #07091f 0%, #1e0d3d 38%, #5b21b6 75%, #7c3aed 100%);
  --prg-glow: rgba(124, 58, 237, 0.22);
}

/* Biến màu riêng cho Tiệc Gala (Bế mạc, 88 đoàn, Lucky Draw & DJ) */
.prg-theme-gala {
  --prg-accent: #be123c;
  --prg-accent-rgb: 190, 18, 60;
  --prg-accent-2: #f43f5e;
  --prg-gold: #fbbf24;
  --prg-hero-bg: linear-gradient(135deg, #130409 0%, #300612 36%, #881337 72%, #be123c 100%);
  --prg-glow: rgba(190, 18, 60, 0.22);
}

/* --------------------------------------------------------------------------
   1. HERO BANNER
   -------------------------------------------------------------------------- */
.prg-hero {
  background: var(--prg-hero-bg);
  position: relative;
  overflow: hidden;
  color: #ffffff;
  padding: 3.5rem 0 3.25rem;
}

.prg-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 18% 25%, rgba(255, 255, 255, 0.12), transparent 45%),
    radial-gradient(circle at 82% 75%, var(--prg-glow), transparent 50%),
    radial-gradient(circle at 50% 10%, rgba(245, 158, 11, 0.10), transparent 40%);
  pointer-events: none;
}

/* Hạt ánh sáng trang trí */
.prg-hero-sparkle {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}
.prg-hero-sparkle-1 {
  top: -80px;
  right: -50px;
  background: var(--prg-accent-2);
}
.prg-hero-sparkle-2 {
  bottom: -90px;
  left: 10%;
  background: var(--prg-accent);
}

.prg-hero .container {
  position: relative;
  z-index: 2;
}

.prg-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.14);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 1.15rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.prg-hero-title {
  font-weight: 900;
  font-size: 2.35rem;
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
  color: #ffffff;
}
@media (min-width: 992px) {
  .prg-hero-title {
    font-size: 2.85rem;
  }
}

.prg-hero-desc {
  font-size: 1.05rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.88);
  max-width: 760px;
  margin-bottom: 1.65rem;
}

/* Dải pill thông tin trong Hero */
.prg-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.85rem;
}

.prg-meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 0.55rem 1rem;
  border-radius: 14px;
  font-size: 0.88rem;
  color: #ffffff;
  transition: all 0.2s ease;
}
.prg-meta-pill:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}
.prg-meta-pill .material-symbols-outlined {
  font-size: 19px;
  color: var(--prg-gold);
}
.prg-meta-pill strong {
  font-weight: 700;
}

/* Các nút bấm hành động trong Hero */
.prg-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}
.prg-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #ffffff;
  color: var(--prg-text-dark);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.7rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  transition: all 0.2s ease;
}
.prg-btn-primary:hover {
  transform: translateY(-2px);
  background: #f8fafc;
  color: var(--prg-accent);
}
.prg-btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: all 0.2s ease;
}
.prg-btn-outline:hover {
  background: rgba(255, 255, 255, 0.22);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   2. HIGHLIGHT PILLARS STRIP
   -------------------------------------------------------------------------- */
.prg-pillars {
  margin-top: -1.75rem;
  position: relative;
  z-index: 10;
  margin-bottom: 2.25rem;
}
.prg-pillar-card {
  background: #ffffff;
  border-radius: 18px;
  padding: 1.2rem 1.35rem;
  border: 1px solid #eef2f6;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.07);
  display: flex;
  align-items: flex-start;
  gap: 0.95rem;
  height: 100%;
  transition: all 0.22s ease;
  position: relative;
  overflow: hidden;
}
.prg-pillar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--prg-accent), var(--prg-accent-2));
  opacity: 0;
  transition: opacity 0.22s ease;
}
.prg-pillar-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.11);
}
.prg-pillar-card:hover::before {
  opacity: 1;
}

.prg-pillar-icon {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--prg-accent-rgb), 0.1);
  color: var(--prg-accent);
}
.prg-pillar-icon .material-symbols-outlined {
  font-size: 24px;
}
.prg-pillar-eyebrow {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--prg-accent);
  margin-bottom: 0.2rem;
}
.prg-pillar-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--prg-text-dark);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}
.prg-pillar-desc {
  font-size: 0.82rem;
  color: var(--prg-text-muted);
  line-height: 1.45;
  margin: 0;
}

/* --------------------------------------------------------------------------
   3. TOOLBAR & FILTER BAR
   -------------------------------------------------------------------------- */
.prg-toolbar {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 0.75rem 1rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.prg-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.prg-filter-btn {
  border: 1px solid #e2e8f0;
  background: #f8fafc;
  color: #475569;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.16s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  user-select: none;
}
.prg-filter-btn:hover {
  background: #f1f5f9;
  color: var(--prg-accent);
  border-color: #cbd5e1;
}
.prg-filter-btn.is-active {
  background: var(--prg-accent);
  color: #ffffff;
  border-color: var(--prg-accent);
  box-shadow: 0 4px 12px rgba(var(--prg-accent-rgb), 0.3);
}
.prg-filter-btn .badge {
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
  color: inherit;
}
.prg-filter-btn.is-active .badge {
  background: rgba(255, 255, 255, 0.25);
  color: #ffffff;
}

.prg-search-box {
  position: relative;
  min-width: 220px;
}
.prg-search-input {
  width: 100%;
  font-size: 0.84rem;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  padding: 0.45rem 1rem 0.45rem 2.25rem;
  background: #f8fafc;
  outline: none;
  transition: all 0.18s ease;
}
.prg-search-input:focus {
  background: #ffffff;
  border-color: var(--prg-accent);
  box-shadow: 0 0 0 3px rgba(var(--prg-accent-rgb), 0.15);
}
.prg-search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 17px;
  color: #94a3b8;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   4. MODERN TIMELINE ARCHITECTURE
   -------------------------------------------------------------------------- */
.prg-timeline-wrap {
  position: relative;
}

/* Trục dọc trung tâm */
.prg-timeline-spine {
  position: relative;
  padding: 0.5rem 0 2rem;
}
.prg-timeline-spine::before {
  content: "";
  position: absolute;
  left: 108px;
  top: 18px;
  bottom: 30px;
  width: 3px;
  background: linear-gradient(180deg, var(--prg-accent) 0%, rgba(var(--prg-accent-rgb), 0.2) 95%, transparent 100%);
  border-radius: 2px;
}

/* Khối từng mốc hoạt động */
.prg-tl-item {
  position: relative;
  display: grid;
  grid-template-columns: 88px 42px 1fr;
  gap: 0;
  margin-bottom: 1.65rem;
  align-items: flex-start;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.prg-tl-item.is-hidden {
  display: none !important;
}

/* Cột mốc thời gian (bên trái) */
.prg-tl-time {
  text-align: right;
  padding-right: 14px;
  padding-top: 6px;
  flex-shrink: 0;
}
.prg-tl-time-start {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--prg-text-dark);
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.prg-tl-time-end {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--prg-accent);
  margin-top: 0.15rem;
}
.prg-tl-duration {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  background: #f1f5f9;
  color: #64748b;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  margin-top: 0.25rem;
}

/* Nút mốc tròn trên đường trục */
.prg-tl-node {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2;
  padding-top: 4px;
}
.prg-tl-dot {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ffffff;
  border: 3px solid var(--prg-accent);
  box-shadow: 0 4px 14px rgba(var(--prg-accent-rgb), 0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--prg-accent);
  transition: all 0.2s ease;
}
.prg-tl-dot .material-symbols-outlined {
  font-size: 18px;
}
.prg-tl-item:hover .prg-tl-dot {
  transform: scale(1.15);
  background: var(--prg-accent);
  color: #ffffff;
}

/* Mốc tròn loại đặc biệt */
.prg-tl-item--highlight .prg-tl-dot {
  background: linear-gradient(135deg, var(--prg-accent), var(--prg-accent-2));
  border-color: #ffffff;
  color: #ffffff;
  box-shadow: 0 0 0 4px rgba(var(--prg-accent-rgb), 0.25), 0 6px 18px rgba(var(--prg-accent-rgb), 0.45);
}
.prg-tl-item--gold .prg-tl-dot {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  border-color: #ffffff;
  color: #ffffff;
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.25), 0 6px 18px rgba(245, 158, 11, 0.45);
}
.prg-tl-item--dj .prg-tl-dot {
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  border-color: #ffffff;
  color: #ffffff;
  box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.25), 0 6px 18px rgba(236, 72, 153, 0.45);
}

/* Thẻ nội dung hoạt động (bên phải) */
.prg-tl-content {
  padding-left: 16px;
}
.prg-card {
  background: #ffffff;
  border: 1px solid #eef2f6;
  border-radius: 18px;
  padding: 1.25rem 1.45rem;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
  transition: all 0.22s ease;
  position: relative;
}
.prg-tl-item:hover .prg-card {
  border-color: #cbd5e1;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.09);
  transform: translateY(-2px);
}

.prg-card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
}

.prg-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
}
.prg-tag .material-symbols-outlined {
  font-size: 14px;
}
.prg-tag--protocol {
  background: rgba(var(--prg-accent-rgb), 0.1);
  color: var(--prg-accent);
}
.prg-tag--miss {
  background: #fdf2f8;
  color: #db2777;
  border: 1px solid #fbcfe8;
}
.prg-tag--contest {
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #a7f3d0;
}
.prg-tag--award {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid #fde68a;
}
.prg-tag--music {
  background: #f5f3ff;
  color: #7c3aed;
  border: 1px solid #ddd6fe;
}
.prg-tag--luckydraw {
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  color: #b45309;
  border: 1px solid #fcd34d;
}
.prg-tag--dj {
  background: linear-gradient(135deg, #fdf2f8, #f5f3ff);
  color: #c026d3;
  border: 1px solid #f0abfc;
}

.prg-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--prg-text-dark);
  line-height: 1.35;
  margin: 0;
}

/* Thẻ nổi bật: Chung kết Miss Mường Thanh */
.prg-card--miss {
  background: linear-gradient(180deg, #faf5ff 0%, #ffffff 40%);
  border: 1.5px solid #e9d5ff;
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.08);
}
.prg-card--miss .prg-card-title {
  color: #581c87;
  font-size: 1.25rem;
}

/* Roadmap 7 bước của Chung kết Miss Mường Thanh */
.prg-miss-stepper {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed #e9d5ff;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.prg-miss-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #ffffff;
  border: 1px solid #f3e8ff;
  border-radius: 12px;
  padding: 0.65rem 0.95rem;
  transition: all 0.18s ease;
}
.prg-miss-step:hover {
  background: #faf5ff;
  border-color: #d8b4fe;
  transform: translateX(4px);
}
.prg-step-badge {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prg-step-text {
  font-size: 0.88rem;
  font-weight: 600;
  color: #334155;
  flex-grow: 1;
}
.prg-step-text strong {
  color: #7c3aed;
}

/* Thẻ nổi bật: Hội diễn Văn nghệ Việt Nam Gấm Hoa */
.prg-card--contest {
  background: linear-gradient(180deg, #f0fdf4 0%, #ffffff 40%);
  border: 1.5px solid #bbf7d0;
  box-shadow: 0 10px 30px rgba(16, 185, 129, 0.08);
}
.prg-card--contest .prg-card-title {
  color: #14532d;
  font-size: 1.25rem;
}

/* Lưới 6 đội thi Văn nghệ */
.prg-team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.65rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed #bbf7d0;
}
.prg-team-card {
  background: #ffffff;
  border: 1px solid #dcfce7;
  border-radius: 12px;
  padding: 0.75rem 0.95rem;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  transition: all 0.18s ease;
}
.prg-team-card:hover {
  background: #f0fdf4;
  border-color: #86efac;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.12);
}
.prg-team-no {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #dcfce7;
  color: #15803d;
  font-size: 0.76rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.prg-team-unit {
  font-size: 0.82rem;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
}
.prg-team-work {
  font-size: 0.8rem;
  font-style: italic;
  color: #166534;
  margin-top: 0.15rem;
}

/* Thẻ nổi bật: Lucky Draw */
.prg-card--luckydraw {
  background: linear-gradient(135deg, #fffbeb 0%, #ffffff 50%, #fef3c7 100%);
  border: 1.5px solid #fde68a;
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.12);
}
.prg-card--luckydraw .prg-card-title {
  color: #92400e;
  font-size: 1.2rem;
}

/* Thẻ nổi bật: DJ Performance */
.prg-card--dj {
  background: linear-gradient(135deg, #180927 0%, #290833 60%, #1e092b 100%);
  color: #ffffff;
  border: 1.5px solid #a855f7;
  box-shadow: 0 12px 36px rgba(168, 85, 247, 0.25);
}
.prg-card--dj .prg-card-title {
  color: #ffffff;
  font-size: 1.2rem;
}
.prg-card--dj .prg-tag {
  background: rgba(255, 255, 255, 0.15);
  color: #f0abfc;
  border-color: rgba(255, 255, 255, 0.25);
}
.prg-dj-waves {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 20px;
}
.prg-dj-bar {
  width: 3px;
  background: #f472b6;
  border-radius: 2px;
  animation: djWave 1.2s ease-in-out infinite alternate;
}
.prg-dj-bar:nth-child(2) { animation-delay: 0.2s; background: #c084fc; height: 18px; }
.prg-dj-bar:nth-child(3) { animation-delay: 0.4s; background: #60a5fa; height: 12px; }
.prg-dj-bar:nth-child(4) { animation-delay: 0.1s; background: #34d399; height: 16px; }
.prg-dj-bar:nth-child(5) { animation-delay: 0.5s; background: #f472b6; height: 10px; }
@keyframes djWave {
  0% { height: 4px; }
  100% { height: 18px; }
}

/* Thẻ Banner Chương (Chương 1, 2, 3 trong Tiệc Gala) */
.prg-chapter-divider {
  position: relative;
  margin: 2.25rem 0 1.5rem;
  z-index: 2;
}
.prg-chapter-card {
  background: linear-gradient(120deg, #1a040d 0%, var(--prg-accent) 55%, var(--prg-accent-2) 100%);
  border-radius: 18px;
  padding: 1rem 1.45rem;
  color: #ffffff;
  box-shadow: 0 10px 28px rgba(var(--prg-accent-rgb), 0.25);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.prg-chapter-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.prg-chapter-num {
  font-size: 1rem;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 10px;
  padding: 0.35rem 0.75rem;
  letter-spacing: 0.5px;
}
.prg-chapter-title {
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
}
.prg-chapter-artist {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.16);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   5. ATTENDEE NOTES & INFORMATION BOX
   -------------------------------------------------------------------------- */
.prg-guidelines-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 1.65rem;
  border: 1px solid #e2e8f0;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.05);
  margin-top: 2.5rem;
}
.prg-guideline-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed #f1f5f9;
}
.prg-guideline-item:last-child {
  border-bottom: 0;
}
.prg-guideline-icon {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--prg-accent);
}

/* --------------------------------------------------------------------------
   6. RESPONSIVE DESIGN (MOBILE & TABLET)
   -------------------------------------------------------------------------- */
@media (max-width: 767.98px) {
  .prg-hero {
    padding: 2.5rem 0 2rem;
  }
  .prg-hero-title {
    font-size: 1.85rem;
  }
  .prg-hero-desc {
    font-size: 0.95rem;
  }
  .prg-pillars {
    margin-top: -1rem;
  }

  /* Điều chỉnh trục dọc trên mobile */
  .prg-timeline-spine::before {
    left: 20px;
  }
  .prg-tl-item {
    grid-template-columns: 42px 1fr;
    gap: 0.65rem;
  }
  .prg-tl-time {
    display: none; /* Ẩn cột giờ bên trái, đưa vào đầu card */
  }
  .prg-tl-node {
    justify-content: flex-start;
  }
  .prg-tl-content {
    padding-left: 0;
  }
  .prg-mobile-time {
    display: inline-flex !important;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--prg-accent);
    background: rgba(var(--prg-accent-rgb), 0.1);
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 0.45rem;
  }
  .prg-card {
    padding: 1.05rem 1.15rem;
  }
  .prg-chapter-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .prg-team-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) {
  .prg-mobile-time {
    display: none !important;
  }
}