:root {
  --bg-deep: #070a10;
  --bg-panel: #0f1623;
  --bg-card: #151f30;
  --bg-card-hover: #1b283e;
  --border-subtle: rgba(138, 164, 200, 0.16);
  --border-bright: rgba(53, 240, 255, 0.45);
  --text-main: #f0f4f8;
  --text-muted: #93a6be;
  --text-dim: #62758f;
  --red: #ff3d5a;
  --cyan: #35f0ff;
  --gold: #ffcf3a;
  --violet: #b56bff;
  --green: #5dffa0;
  --orange: #ff8a3d;
  --pink: #ff6bd5;
  --lime: #c6ff3a;
  --shadow-lg: 0 18px 42px rgba(0, 0, 0, 0.55);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(53, 240, 255, 0.08), transparent 35%),
    radial-gradient(circle at 85% 12%, rgba(255, 61, 90, 0.09), transparent 35%),
    radial-gradient(circle at 50% 80%, rgba(181, 107, 255, 0.06), transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 32px 32px, 32px 32px;
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
}

/* Sticky Top Navigation */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 10, 16, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.top-nav-inner {
  max-width: 1380px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.brand-badge {
  background: linear-gradient(135deg, var(--red), var(--orange));
  color: #09090a;
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
}

.brand-title {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.4px;
}

.nav-links {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s;
}

.nav-links a:hover {
  color: var(--cyan);
  background: rgba(53, 240, 255, 0.1);
}

.container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 28px 20px 80px;
}

/* Hero Banner */
.hero {
  position: relative;
  background: linear-gradient(145deg, rgba(21, 31, 48, 0.92), rgba(11, 17, 28, 0.95));
  border: 1px solid rgba(53, 240, 255, 0.25);
  border-radius: 22px;
  padding: 34px 32px 28px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  margin-bottom: 28px;
}

.hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 207, 58, 0.18), transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  background: rgba(255, 207, 58, 0.12);
  border: 1px solid rgba(255, 207, 58, 0.3);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 10px;
  background: linear-gradient(90deg, #ffffff, #9fdcff, #ffcf3a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 15.5px;
  max-width: 880px;
  margin-bottom: 24px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.hero-stat-card {
  background: rgba(9, 14, 22, 0.72);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px 16px;
}

.hero-stat-val {
  font-size: 26px;
  font-weight: 900;
  color: var(--cyan);
  line-height: 1.15;
}

.hero-stat-val.gold { color: var(--gold); }
.hero-stat-val.red { color: var(--red); }
.hero-stat-val.green { color: var(--green); }
.hero-stat-val.violet { color: var(--violet); }

.hero-stat-label {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Section Headers */
.section {
  margin-bottom: 36px;
  scroll-margin-top: 74px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.section-title {
  font-size: 23px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 14px;
}

/* Student Directory / Picker Bar */
.student-picker-panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-lg);
}

.picker-toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.search-box {
  position: relative;
  flex: 1 1 280px;
}

.search-box input {
  width: 100%;
  padding: 11px 16px 11px 40px;
  border-radius: 10px;
  border: 1px solid rgba(53, 240, 255, 0.35);
  background: rgba(7, 10, 16, 0.9);
  color: var(--text-main);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 240, 255, 0.18);
}

.search-icon {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--cyan);
  pointer-events: none;
}

.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-muted);
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
}

.chip:hover {
  border-color: var(--cyan);
  color: var(--text-main);
}

.chip.active {
  background: rgba(53, 240, 255, 0.16);
  border-color: var(--cyan);
  color: var(--cyan);
}

.student-pills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 8px;
  max-height: 256px;
  overflow-y: auto;
  padding-right: 4px;
}

.student-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 8px 11px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: all 0.16s;
}

.student-pill:hover {
  background: var(--bg-card-hover);
  border-color: rgba(53, 240, 255, 0.45);
  transform: translateY(-1px);
}

.student-pill.selected {
  background: linear-gradient(135deg, rgba(53, 240, 255, 0.22), rgba(181, 107, 255, 0.22));
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(53, 240, 255, 0.25);
}

.pill-names {
  overflow: hidden;
}

.pill-real {
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pill-nick {
  font-size: 11.5px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pill-badge {
  font-size: 11.5px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--gold);
  flex-shrink: 0;
}

/* Personal Dossier Layout */
.dossier-grid {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 22px;
  align-items: start;
}

@media (max-width: 1080px) {
  .dossier-grid {
    grid-template-columns: 1fr;
  }
}

.dossier-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.profile-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.profile-name-wrap h2 {
  font-size: 28px;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nick-tag {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(53, 240, 255, 0.12);
  border: 1px solid rgba(53, 240, 255, 0.3);
  padding: 2px 10px;
  border-radius: 999px;
}

.rank-stamp {
  text-align: right;
  background: rgba(255, 207, 58, 0.12);
  border: 1px solid rgba(255, 207, 58, 0.35);
  border-radius: 12px;
  padding: 6px 12px;
  flex-shrink: 0;
}

.rank-stamp .tier {
  font-size: 22px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1.1;
}

.rank-stamp .sub {
  font-size: 11px;
  color: var(--text-muted);
}

.persona-banner {
  background: linear-gradient(135deg, rgba(255, 61, 90, 0.14), rgba(181, 107, 255, 0.14));
  border: 1px solid rgba(255, 61, 90, 0.32);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 14px;
}

.persona-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 4px;
}

.persona-bio {
  font-size: 13.5px;
  color: var(--text-main);
  line-height: 1.65;
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 18px;
}

.badge-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.badge-item.gold { border-color: rgba(255, 207, 58, 0.45); color: var(--gold); background: rgba(255, 207, 58, 0.1); }
.badge-item.red { border-color: rgba(255, 61, 90, 0.45); color: #ff7b8f; background: rgba(255, 61, 90, 0.1); }
.badge-item.cyan { border-color: rgba(53, 240, 255, 0.45); color: var(--cyan); background: rgba(53, 240, 255, 0.1); }
.badge-item.green { border-color: rgba(93, 255, 160, 0.45); color: var(--green); background: rgba(93, 255, 160, 0.1); }
.badge-item.violet { border-color: rgba(181, 107, 255, 0.45); color: #d1a3ff; background: rgba(181, 107, 255, 0.1); }
.badge-item.orange { border-color: rgba(255, 138, 61, 0.45); color: var(--orange); background: rgba(255, 138, 61, 0.1); }

.radar-box {
  background: rgba(7, 10, 16, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 16px;
  text-align: center;
}

.radar-legend {
  display: flex;
  justify-content: center;
  gap: 18px;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.kpi-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 12px;
}

.kpi-val {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.kpi-sub {
  font-size: 11.5px;
  color: var(--text-muted);
}

.action-row {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 15px;
  border-radius: 9px;
  border: 1px solid rgba(53, 240, 255, 0.4);
  background: rgba(53, 240, 255, 0.13);
  color: var(--cyan);
  font-weight: 700;
  font-size: 13.5px;
  cursor: pointer;
  transition: all 0.18s;
}

.btn:hover {
  background: rgba(53, 240, 255, 0.24);
  transform: translateY(-1px);
}

.btn.gold {
  border-color: rgba(255, 207, 58, 0.45);
  background: rgba(255, 207, 58, 0.14);
  color: var(--gold);
}

/* Right Column: Ego Network + Interactions + 4-Match History */
.ego-graph-wrap {
  background: rgba(7, 10, 16, 0.78);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 18px;
}

.ego-graph-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.ego-canvas {
  width: 100%;
  height: 290px;
  display: block;
  border-radius: 10px;
  background: radial-gradient(circle at center, rgba(21, 31, 48, 0.65), rgba(7, 10, 16, 0.95));
  cursor: pointer;
}

.rel-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.rel-tab {
  padding: 8px 14px;
  border-radius: 9px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 13.5px;
  cursor: pointer;
}

.rel-tab.active {
  background: rgba(53, 240, 255, 0.16);
  border-color: var(--cyan);
  color: var(--cyan);
}

.rel-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(265px, 1fr));
  gap: 10px;
  margin-bottom: 22px;
}

.rel-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 11px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.16s;
}

.rel-item-card:hover {
  border-color: rgba(53, 240, 255, 0.4);
}

.rel-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.rel-person-btn {
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  text-align: left;
  padding: 0;
}

.rel-person-btn:hover {
  color: var(--cyan);
  text-decoration: underline;
}

.rel-count-badge {
  font-size: 12px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 999px;
}

.rel-count-badge.kill { background: rgba(255, 61, 90, 0.18); color: #ff7b8f; border: 1px solid rgba(255, 61, 90, 0.4); }
.rel-count-badge.death { background: rgba(181, 107, 255, 0.18); color: #d1a3ff; border: 1px solid rgba(181, 107, 255, 0.4); }
.rel-count-badge.team { background: rgba(93, 255, 160, 0.18); color: var(--green); border: 1px solid rgba(93, 255, 160, 0.4); }

.rel-detail-line {
  font-size: 12.5px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* 4-Match History Cards inside Dossier */
.match-progress-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
}

.m-hist-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px;
  position: relative;
}

.m-hist-card.win {
  border-color: rgba(255, 207, 58, 0.55);
  background: linear-gradient(145deg, rgba(255, 207, 58, 0.1), rgba(21, 31, 48, 0.95));
}

.m-hist-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.m-place-pill {
  font-weight: 900;
  font-size: 14px;
  padding: 2px 9px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.m-place-pill.p1 {
  background: var(--gold);
  color: #09090a;
}

.m-place-pill.top3 {
  background: rgba(53, 240, 255, 0.2);
  color: var(--cyan);
}

.progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  margin: 8px 0;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  border-radius: 999px;
}

/* Full Class Network & 1v1 Versus Section */
.network-versus-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 22px;
}

@media (max-width: 1100px) {
  .network-versus-grid {
    grid-template-columns: 1fr;
  }
}

.full-network-canvas {
  width: 100%;
  height: 520px;
  display: block;
  border-radius: 12px;
  background: radial-gradient(circle at center, rgba(21, 31, 48, 0.8), rgba(7, 10, 16, 0.98));
  border: 1px solid var(--border-subtle);
  cursor: grab;
}

.full-network-canvas:active {
  cursor: grabbing;
}

/* 1v1 Versus Card */
.vs-selectors {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

.vs-select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-main);
  font-size: 14px;
  font-weight: 700;
}

.vs-badge {
  font-weight: 900;
  color: var(--red);
  font-size: 18px;
  padding: 0 4px;
}

.vs-h2h-banner {
  background: rgba(7, 10, 16, 0.72);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
  text-align: center;
}

.vs-score-big {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 2px;
  margin: 4px 0;
}

.tug-row {
  margin-bottom: 11px;
}

.tug-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  margin-bottom: 4px;
}

.tug-bar {
  display: flex;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

.tug-left {
  background: var(--cyan);
  height: 100%;
}

.tug-right {
  background: var(--red);
  height: 100%;
}

/* Drama Stories & KFC Prizes */
.drama-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.drama-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  transition: transform 0.18s, border-color 0.18s;
}

.drama-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 207, 58, 0.45);
}

.drama-tag {
  font-size: 11.5px;
  font-weight: 800;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.drama-card h3 {
  font-size: 17px;
  font-weight: 800;
  margin-top: 4px;
}

.drama-card p {
  font-size: 13.5px;
  color: var(--text-muted);
}

.kfc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.kfc-card {
  background: linear-gradient(135deg, rgba(255, 61, 90, 0.12), rgba(255, 207, 58, 0.12));
  border: 1px solid rgba(255, 207, 58, 0.38);
  border-radius: 14px;
  padding: 16px 18px;
}

/* Weapons Grid */
.weapons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.weapon-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.weapon-sprite-canvas {
  width: 64px;
  height: 36px;
  image-rendering: pixelated;
  flex-shrink: 0;
}

/* Match Replay & Full Leaderboard Table */
.table-wrap {
  overflow-x: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

table.data-table th,
table.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid rgba(138, 164, 200, 0.1);
  white-space: nowrap;
}

table.data-table th {
  color: var(--text-muted);
  font-weight: 700;
  background: rgba(7, 10, 16, 0.6);
  cursor: pointer;
  user-select: none;
}

table.data-table th:hover {
  color: var(--cyan);
}

table.data-table tr:hover td {
  background: rgba(53, 240, 255, 0.05);
}

.kill-feed-stream {
  max-height: 440px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-right: 6px;
}

.kill-feed-row {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 9px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13.5px;
}

.kill-feed-row.highlight {
  border-color: var(--gold);
  background: rgba(255, 207, 58, 0.1);
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--cyan);
  color: var(--text-main);
  padding: 12px 20px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  font-weight: 700;
  z-index: 999;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.25s;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}