/* [Team 01 Color System] */
:root {
  --primary: #6366f1;
  --text: #0f172a;
  --muted: rgba(15, 23, 42, 0.72);
  --line: #eaeef6;
  --line-dark: #cbd5e1;
  --bg-soft: #f8fafc;
  --chip: rgba(99, 102, 241, 0.1);
  --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.04);
  --header-gradient: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.12),
    rgba(129, 140, 248, 0.12)
  );
}

* {
  box-sizing: border-box;
}

html,
body {
  overflow: hidden;
}

body {
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
  background-color: var(--bg-soft);
  color: var(--text);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  height: fit-content;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
}

/* Header */
header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.5px;
  display: inline-block;
  position: relative;
}

header h1::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  margin: 10px auto 0;
}

header p {
  font-size: 1rem;
  color: var(--muted);
  margin-top: 15px;
}

/* Card Styles */
.activity-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  margin-bottom: 30px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.card-header {
  background: var(--header-gradient);
  padding: 20px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.card-header h2 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-header .time {
  background: #fff;
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
  box-shadow: 0 2px 4px rgba(99, 102, 241, 0.1);
  border: 1px solid var(--chip);
}

.card-body {
  padding: 0 30px;
}

/* ---------------------------------------------------------
           LAYOUT SYSTEM
        --------------------------------------------------------- */

/* Base Container */
.sub-item {
  display: flex;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  column-gap: 40px;
  row-gap: 0px;
}
.sub-item:last-child {
  border-bottom: none;
}

/* Left Content Area */
.sub-item-content {
  flex: 1;
  min-width: 0;
}

/* Right/Bottom Media Area */
.sub-item-media {
  flex-shrink: 0;
  display: grid;
  gap: 10px;
  padding-left: 28px;
}

.sub-item-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  background-color: var(--line);
}

/* --- LAYOUT 1: DEFAULT SPLIT --- */
/* Used for standard items (Text Left, Image Right) */
.sub-item:not(.layout-stacked) {
  flex-direction: row;
  align-items: flex-start;
}
.sub-item:not(.layout-stacked) .sub-item-media {
  width: 380px;
  /* Smart Grid for side panel */
  grid-template-columns: repeat(2, 1fr);
  padding: 0;
}
/* Grid Logic for Side Panel */
.sub-item:not(.layout-stacked) .sub-item-media img {
  aspect-ratio: 4/3;
}
/* If 1 image: full width */
.sub-item:not(.layout-stacked) .sub-item-media img:only-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}
/* If 3 images: 2 on top, 1 on bottom (spanning full width) */
.sub-item:not(.layout-stacked)
  .sub-item-media
  img:last-child:nth-child(odd):not(:first-child) {
  grid-column: span 2;
  aspect-ratio: 21/9;
}

/* --- LAYOUT 2: STACKED (WIDE) --- */
/* Used for heavy text (Text Top, Images Bottom) - e.g. Boeing */
.sub-item.layout-stacked {
  flex-direction: column;
  gap: 0px;
}
.sub-item.layout-stacked .sub-item-media {
  width: 100%;
  grid-template-columns: repeat(3, 1fr); /* 3 columns for wide view */
}
.sub-item.layout-stacked .sub-item-media img,
.sub-item.layout-merged-bottom .sub-item-media img {
  aspect-ratio: 16/10 !important;
  grid-column: span 1 !important;
}

/* --- LAYOUT 3: MERGED SPLIT (NEW) --- */
.sub-item.layout-merged-split {
  flex-direction: row !important; /* Ensure side-by-side */
  align-items: flex-start;
}

/* Internal Separator for Merged Text Items */
.sub-item.layout-merged-split .sub-item-content h4:not(:first-child),
.sub-item.layout-merged-bottom .sub-item-content h4:not(:first-child) {
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

/* --- LAYOUT 4: MERGED BOTTOM --- */
.sub-item.layout-merged-bottom {
  flex-direction: column !important;
}

.sub-item.layout-merged-bottom .sub-item-media {
  width: 100% !important;
  grid-template-columns: repeat(3, 1fr) !important; /* 3 Columns for 6 images */
  padding-left: 28px;
}

/* --- RESEARCH TABLE STYLES --- */
.mobile-scroll-hint {
  display: none; /* Hidden on desktop */
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 8px;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.1px;
}

.research-table-container {
  margin: 0;
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow:
    inset 5px 0 10px -5px rgba(0, 0, 0, 0.02),
    inset -5px 0 10px -5px rgba(0, 0, 0, 0.02);
}

table.research-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 600px;
}

table.research-table.four-col {
  /* min-width: 850px; */
}

table.research-table th {
  background-color: var(--bg-soft);
  color: var(--text);
  font-weight: 700;
  text-align: left;
  padding: 16px 24px;
  border-bottom: 2px solid var(--line);
  white-space: nowrap;
  position: sticky;
  top: 0;
}

table.research-table td {
  padding: 18px;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

table.research-table tr:last-child td {
  border-bottom: none;
}

table.research-table td.col-team {
  width: 1px;
  white-space: nowrap;
  font-weight: 700;
  color: var(--primary);
  background-color: rgba(248, 250, 252, 0.5);
  padding: 18px;
}

table.research-table td.col-where {
  width: 15%;
}
table.research-table td.col-who {
  width: 20%;
}
table.research-table td.col-what {
  width: auto;
}

.team-badge {
  display: inline-block;
  background: var(--chip);
  color: var(--primary);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  white-space: nowrap;
}

.table-list {
  margin: 0;
  padding-left: 20px;
  list-style-type: none;
  min-width: 200px;
}

.table-list li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 0;
  line-height: 1.6;
}

.table-list li::before {
  content: "•";
  color: var(--primary);
  position: absolute;
  left: -20px;
  font-weight: bold;
}

.table-list li strong {
  color: var(--text);
  font-weight: 600;
  margin-right: 4px;
}

/* --- AWARD TABLE STYLES (Premium) --- */
table.award-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.95rem;
  min-width: 650px;
}

table.award-table th {
  background-color: #312e81; /* Indigo-900 */
  color: #fff;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.85rem;
  padding: 18px 24px;
  text-align: left;
  border: none;
  position: sticky;
  top: 0;
}
table.award-table th:first-child {
  border-top-left-radius: 12px;
}
table.award-table th:last-child {
  border-top-right-radius: 12px;
}

table.award-table td {
  padding: 18px 24px;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
  background-color: #fff;
}

.col-award {
  width: 30%;
}
.col-award-team {
  width: 15%;
  text-align: center;
}
.col-award-title {
  width: 55%;
}

.award-cell-content {
  display: flex;
  align-items: center;
  gap: 14px;
}
.award-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.12));
  flex-shrink: 0;
}
.award-name {
  font-weight: 800;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.2;
}

.winner-team-badge {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--line-dark);
  color: var(--text);
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  white-space: nowrap;
}
.winner-title {
  color: var(--text);
  font-weight: 500;
  line-height: 1.5;
}

/* --- NEW: PENDING / EMPTY STATE --- */
.pending-block {
  margin: 30px 0;
  padding: 40px;
  background-color: var(--bg-soft);
  border: 2px dashed var(--line-dark);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--muted);
  gap: 12px;
}

.pending-block svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
  opacity: 0.6;
}

.pending-block p {
  margin: 0;
  font-weight: 500;
  font-size: 1rem;
}

/* Typography */
h4 {
  color: var(--text);
  margin: 0 0 12px 0;
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
}

h4 .number-badge {
  background: var(--chip);
  color: var(--primary);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  margin-right: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.description-text {
  color: var(--muted);
  margin: 0 0 12px 40px;
  font-size: 1rem;
  display: block;
}

.sub-item-content > ul {
  padding-left: 18px;
  margin: 0;
  list-style: none;
}

.sub-item-content > ul > li {
  margin-bottom: 12px;
  color: var(--muted);
  position: relative;
  padding-left: 24px;
  font-size: 0.98rem;
}

.sub-item-content > ul > li::before {
  content: "•";
  color: var(--primary);
  position: absolute;
  left: 6px;
  font-weight: bold;
  font-size: 1.2rem;
  line-height: 1rem;
}

.sub-item-content > ul > li strong {
  color: var(--text);
  font-weight: 600;
}

/* Responsive Design */
@media (max-width: 850px) {
  .container {
    margin: 20px auto;
    padding: 0 15px;
  }
  .card-body {
    padding: 0 20px;
  }

  .sub-item,
  .sub-item.layout-merged-split,
  .sub-item.layout-merged-bottom {
    flex-direction: column !important;
  }

  .sub-item-content {
    width: 100%;
    overflow: hidden;
  }

  .sub-item-media {
    width: 100% !important;
    margin-top: 20px;
  }
  .sub-item-media,
  .sub-item.layout-stacked .sub-item-media {
    grid-template-columns: repeat(2, 1fr) !important;
  }
  .sub-item.layout-merged-bottom .sub-item-media {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .description-text,
  .sub-item-content > ul {
    margin-left: 0;
    padding-left: 10px;
    border-left: 2px solid var(--chip);
  }

  .mobile-scroll-hint {
    display: flex;
  }
}

@media (max-width: 500px) {
  .card-header h2 {
    font-size: 1.1rem;
  }
  .sub-item-media,
  .sub-item.layout-stacked .sub-item-media,
  .sub-item.layout-merged-bottom .sub-item-media {
    grid-template-columns: 1fr !important;
  }
}