/* =========================================================
   THE ROUND TABLE EXCHANGE (RTE) - DESIGN SYSTEM
   Theme: Modern Aesthetic Neo-Brutalism (Eye-Candy Edition)
   Characteristics: High-Contrast Ink Borders, Hard 3D Shadows,
   Vibrant Pop-Pastel Palette, Space Grotesk & JetBrains Mono
========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600;700;800&display=swap');

:root {
  /* Canvas & Surface */
  --bg-canvas: #FFFDF5;
  --bg-surface: #FFFFFF;
  --bg-surface-alt: #F7F4EB;
  --bg-muted: #EFECE1;

  /* Ink & Borders */
  --ink-black: #121212;
  --ink-muted: #4B5563;
  --ink-light: #6B7280;

  --border-width: 3px;
  --border-width-sm: 2px;
  --border-main: 3px solid var(--ink-black);
  --border-thin: 2px solid var(--ink-black);

  /* Hard Offset 3D Shadows (No blur!) */
  --shadow-sm: 2.5px 2.5px 0px var(--ink-black);
  --shadow-main: 4px 4px 0px var(--ink-black);
  --shadow-lg: 6px 6px 0px var(--ink-black);
  --shadow-xl: 8px 8px 0px var(--ink-black);
  --shadow-pressed: 1px 1px 0px var(--ink-black);

  /* Neo-Brutalism Eye-Candy Pop Palette */
  --pop-canary: #FFE600;       /* Cyber Yellow */
  --pop-canary-light: #FFF480;
  --pop-mint: #00F5D4;         /* Electric Mint */
  --pop-mint-light: #A3FFF3;
  --pop-coral: #FF6B8B;        /* Hot Bubblegum */
  --pop-coral-light: #FFB3C3;
  --pop-lilac: #D7B9FF;        /* Digital Lavender */
  --pop-lilac-light: #EFE3FF;
  --pop-cyan: #00BBF9;         /* High-Voltage Sky */
  --pop-cyan-light: #8FE3FF;
  --pop-tangerine: #FF9E00;    /* Retro Tangerine */
  --pop-tangerine-light: #FFD48F;
  --pop-emerald: #10B981;

  /* Typography */
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radii (Clean geometric neo-brutalist rounded corners) */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-canvas);
  color: var(--ink-black);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.5;
  background-image: 
    radial-gradient(rgba(18, 18, 18, 0.12) 1.2px, transparent 1.2px);
  background-size: 20px 20px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-surface-alt);
  border-left: var(--border-thin);
}
::-webkit-scrollbar-thumb {
  background: var(--ink-black);
  border: 2px solid var(--bg-surface-alt);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--pop-coral);
}

/* =========================================================
   HEADER & NAVIGATION
========================================================= */
header.app-header {
  height: 74px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border-bottom: var(--border-main);
  box-shadow: 0 4px 0px var(--ink-black);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--pop-canary);
  border: var(--border-main);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transform: rotate(-3deg);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand-wrapper:hover .brand-icon {
  transform: rotate(6deg) scale(1.08);
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink-black);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-subtitle {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-muted);
  letter-spacing: -0.01em;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 8px;
  background: var(--bg-surface-alt);
  padding: 6px;
  border-radius: var(--radius-md);
  border: var(--border-thin);
  box-shadow: var(--shadow-sm);
}

.tab-btn {
  padding: 7px 16px;
  background: var(--bg-surface);
  border: var(--border-thin);
  color: var(--ink-black);
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-display);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 2px 2px 0px var(--ink-black);
}

.tab-btn:hover {
  transform: translate(-1.5px, -1.5px);
  box-shadow: 3.5px 3.5px 0px var(--ink-black);
  background: var(--pop-canary-light);
}

.tab-btn:active {
  transform: translate(1px, 1px);
  box-shadow: var(--shadow-pressed);
}

.tab-btn.active {
  background: var(--pop-mint);
  border-color: var(--ink-black);
  box-shadow: 3px 3px 0px var(--ink-black);
  transform: translate(-1px, -1px);
}

/* Header Badges & Actions */
.header-badges {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.74rem;
  font-weight: 700;
  font-family: var(--font-mono);
  border: var(--border-thin);
  background: var(--pop-canary);
  color: var(--ink-black);
  box-shadow: var(--shadow-sm);
}

.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-black);
  animation: neo-pulse 1.4s infinite alternate ease-in-out;
}

@keyframes neo-pulse {
  0% { transform: scale(0.85); background: var(--ink-black); }
  100% { transform: scale(1.25); background: #FF0055; }
}

/* =========================================================
   METRICS STRIP (EYE-CANDY CARDS)
========================================================= */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  padding: 20px 28px 4px;
}

.metric-card {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-main);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 8px;
  border-bottom: var(--border-thin);
  background: var(--pop-canary);
}

.metric-card:nth-child(1)::before { background: var(--pop-canary); }
.metric-card:nth-child(2)::before { background: var(--pop-mint); }
.metric-card:nth-child(3)::before { background: var(--pop-lilac); }
.metric-card:nth-child(4)::before { background: var(--pop-coral); }
.metric-card:nth-child(5)::before { background: var(--pop-tangerine); }

.metric-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-lg);
}

.metric-label {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-top: 4px;
  margin-bottom: 2px;
  font-family: var(--font-display);
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--ink-black) !important;
  line-height: 1.1;
  margin: 4px 0;
}

.metric-detail {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-light);
}

/* =========================================================
   MAIN LAYOUT & WORKSPACES
========================================================= */
main.app-main {
  flex: 1;
  padding: 16px 28px 28px;
  display: flex;
  flex-direction: column;
}

.tab-content {
  display: none;
  flex: 1;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: fadeInPop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeInPop {
  0% { opacity: 0; transform: translateY(6px) scale(0.99); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* Explorer 3-Column Grid */
.explorer-grid {
  display: grid;
  grid-template-columns: 320px 1fr 390px;
  gap: 20px;
  height: calc(100vh - 225px);
  min-height: 620px;
}

@media (max-width: 1400px) {
  .explorer-grid {
    grid-template-columns: 290px 1fr 350px;
  }
}

@media (max-width: 1120px) {
  .explorer-grid {
    grid-template-columns: 1fr;
    height: auto;
  }
}

/* Neo-Brutalist Panel Card */
.panel-card {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-main);
}

.panel-header {
  padding: 14px 20px;
  border-bottom: var(--border-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--pop-lilac-light);
}

.panel-title {
  font-family: var(--font-display);
  font-size: 0.96rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-black);
}

.panel-body {
  padding: 18px 20px;
  flex: 1;
  overflow-y: auto;
  background: var(--bg-surface);
}

/* =========================================================
   BUTTONS (TACTILE 3D PUSH EFFECT)
========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 800;
  font-family: var(--font-display);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: var(--border-main);
  box-shadow: var(--shadow-main);
  width: 100%;
  text-align: center;
  color: var(--ink-black);
  text-decoration: none;
  user-select: none;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-pressed);
}

.btn-primary {
  background: var(--pop-mint);
}
.btn-primary:hover {
  background: #38ef7d;
}

.btn-secondary {
  background: var(--bg-surface);
}
.btn-secondary:hover {
  background: var(--pop-canary-light);
}

.btn-accent {
  background: var(--pop-canary);
}
.btn-accent:hover {
  background: #FFD000;
}

.btn-danger {
  background: var(--pop-coral);
  color: var(--ink-black);
}
.btn-danger:hover {
  background: #ff4770;
}

.btn-success {
  background: var(--pop-mint);
  color: var(--ink-black);
}
.btn-success:hover {
  background: #00e0c3;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.76rem;
  width: auto;
  box-shadow: var(--shadow-sm);
}
.btn-sm:hover {
  box-shadow: var(--shadow-main);
}
.btn-sm:active {
  box-shadow: var(--shadow-pressed);
}

/* Form Controls & Range Slider */
.control-group {
  margin-bottom: 18px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 800;
  font-family: var(--font-display);
  color: var(--ink-black);
  margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  color: var(--ink-black);
  font-family: var(--font-main);
  font-size: 0.84rem;
  font-weight: 600;
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  background: #FFFFFA;
  box-shadow: var(--shadow-main);
  transform: translate(-1px, -1px);
}

/* Neo-Brutalist Slider */
.range-slider {
  width: 100%;
  height: 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-muted);
  border: var(--border-thin);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-xs);
  background: var(--pop-canary);
  border: var(--border-main);
  box-shadow: 2px 2px 0px var(--ink-black);
  cursor: grab;
  transition: transform 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: var(--pop-coral);
}

.range-slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.0);
}

.slider-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--ink-light);
  margin-top: 6px;
}

/* =========================================================
   GRAPH CANVAS AREA
========================================================= */
.graph-container {
  position: relative;
  flex: 1;
  height: 100%;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: var(--border-main);
  box-shadow: var(--shadow-main);
  overflow: hidden;
  background-image: 
    linear-gradient(to right, rgba(18, 18, 18, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(18, 18, 18, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
}

#network-canvas {
  width: 100%;
  height: 100%;
}

.graph-overlay-controls {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  gap: 10px;
  z-index: 10;
}

.graph-legend {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: var(--bg-surface);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: var(--border-main);
  box-shadow: var(--shadow-sm);
  font-size: 0.74rem;
  font-weight: 700;
  font-family: var(--font-display);
  display: flex;
  gap: 16px;
  z-index: 10;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-black);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--ink-black);
}

/* =========================================================
   DISCOVERED CYCLE CARDS (COLLECTIBLE TRADING CARD LOOK)
========================================================= */
.cycle-card {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 14px;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.cycle-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-lg);
  background: #FFFDF0;
}

.cycle-card.selected {
  background: var(--pop-canary-light);
  border-color: var(--ink-black);
  box-shadow: var(--shadow-lg);
  transform: translate(-2px, -2px);
}

.cycle-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.cycle-type-tag {
  font-size: 0.74rem;
  font-weight: 800;
  font-family: var(--font-display);
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: var(--pop-canary);
  color: var(--ink-black);
  border: var(--border-thin);
  box-shadow: 1.5px 1.5px 0px var(--ink-black);
  transform: rotate(-1.5deg);
}

.cycle-type-tag.k4 {
  background: var(--pop-lilac);
  transform: rotate(1.5deg);
}

.cycle-score-pill {
  font-size: 0.78rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--pop-mint-light);
  color: var(--ink-black);
  padding: 2px 8px;
  border: var(--border-thin);
  border-radius: var(--radius-xs);
  box-shadow: 1.5px 1.5px 0px var(--ink-black);
}

.cycle-chain {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 10px 0;
  font-size: 0.78rem;
}

.chain-step {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-surface-alt);
  padding: 5px 8px;
  border-radius: var(--radius-xs);
  border: 1.5px solid var(--ink-black);
  font-size: 0.74rem;
}

.chain-user {
  font-weight: 800;
  font-family: var(--font-display);
  color: var(--ink-black);
}

.chain-skill {
  color: #8A2BE2;
  font-weight: 700;
  font-family: var(--font-mono);
}

.cycle-stats-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  border-top: var(--border-thin);
  padding-top: 8px;
  margin-top: 8px;
}

/* =========================================================
   GROUP CONFIRMATION CONSOLE (TAB 2)
========================================================= */
.proposal-box {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-main);
}

.proposal-status-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 800;
  font-family: var(--font-display);
  margin-bottom: 14px;
  border: var(--border-main);
  box-shadow: var(--shadow-sm);
}

.status-PENDING {
  background: var(--pop-canary);
  color: var(--ink-black);
}

.status-CONFIRMED {
  background: var(--pop-mint);
  color: var(--ink-black);
}

.status-REJECTED {
  background: var(--pop-coral);
  color: var(--ink-black);
}

.participant-vote-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-alt);
  border: var(--border-thin);
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.participant-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.vote-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* =========================================================
   USER DIRECTORY (TAB 3)
========================================================= */
.user-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 20px;
}

.user-card {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-main);
  transition: all 0.18s ease;
}

.user-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-lg);
}

.user-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  border: var(--border-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ink-black);
  box-shadow: var(--shadow-sm);
}

.user-meta-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--ink-black);
}

.user-meta-loc {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--ink-muted);
}

.skill-tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-tag {
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  border: var(--border-thin);
  box-shadow: 1.5px 1.5px 0px var(--ink-black);
}

.skill-tag.offer {
  background: var(--pop-mint-light);
  color: var(--ink-black);
}

.skill-tag.want {
  background: var(--pop-lilac-light);
  color: var(--ink-black);
}

/* =========================================================
   SCALABILITY BENCHMARKS TABLE (TAB 4)
========================================================= */
.benchmark-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.84rem;
  margin-top: 18px;
  border: var(--border-main);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-main);
}

.benchmark-table th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: var(--border-main);
  background: var(--pop-canary);
  color: var(--ink-black);
  font-weight: 800;
  font-family: var(--font-display);
}

.benchmark-table td {
  padding: 12px 16px;
  border-bottom: var(--border-thin);
  font-family: var(--font-mono);
  background: var(--bg-surface);
  color: var(--ink-black);
}

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

.benchmark-table tr:nth-child(even) td {
  background: var(--bg-surface-alt);
}

.benchmark-table tr:hover td {
  background: var(--pop-mint-light);
}

/* =========================================================
   MODALS (POPUP DIALOG)
========================================================= */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(18, 18, 18, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-backdrop.active {
  display: flex;
  animation: fadeInPop 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-content {
  background: var(--bg-surface);
  border: var(--border-main);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 520px;
  padding: 26px;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.modal-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  border-bottom: var(--border-main);
  padding-bottom: 12px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}