/*
  ==============================================================================
  CYBER_VAULT CORE STYLESHEET // v3.4.19
  CLASSIFICATION: RESTRICTED // SEC-OP AUTHORIZED ONLY
  ==============================================================================

  [CRITICAL SECURITY ALERT - CSS DIRECTORY]
  Did an auditor inspect this stylesheet?
  CSS Custom Properties and Pseudo-elements can expose sensitive keys if not sanitized!
  
  --classified-vault-key: "CTF{ hakon_wium_lie}";
  
  Inspect the .css-vault-seal::after rule below for the complete credential!
  ==============================================================================
*/

:root {
  /* CTF SECRET INJECTION (FLAG 2 - CSS PIONEER) */
  --classified-vault-key: "CTF{ hakon_wium_lie}";
  --classified-subsystem-hash: "0x89f_css_cipher_seal";

  /* Theme Color Palette */
  --bg-deep: #07090e;
  --bg-surface: #0e121d;
  --bg-surface-elevated: #151b2b;
  --bg-glass: rgba(14, 18, 29, 0.75);
  --bg-glass-card: rgba(18, 24, 38, 0.85);

  --accent-cyan: #00f2fe;
  --accent-neon-green: #39ff14;
  --accent-magenta: #ff007f;
  --accent-purple: #9d4edd;
  --accent-amber: #ffaa00;
  --accent-red: #ff3366;

  --border-cyan: rgba(0, 242, 254, 0.25);
  --border-glow: rgba(0, 242, 254, 0.5);
  --border-subtle: rgba(255, 255, 255, 0.08);

  --text-main: #e2e8f0;
  --text-muted: #8492a6;
  --text-dim: #4e5d78;

  /* Typography */
  --font-display: 'Orbitron', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-code: 'Fira Code', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Box Shadows & Glows */
  --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.35);
  --glow-green: 0 0 20px rgba(57, 255, 20, 0.4);
  --glow-magenta: 0 0 20px rgba(255, 0, 127, 0.35);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body.cyber-theme {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

::selection {
  background: var(--accent-cyan);
  color: #05070c;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: #1f293d;
  border-radius: 4px;
  border: 1px solid var(--border-cyan);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* Background Matrix Canvas */
#matrix-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
  transition: opacity 0.4s ease;
}

#matrix-canvas.hidden {
  opacity: 0 !important;
}

/* Ambient Background Glow and Scanlines */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at 50% 10%, rgba(0, 242, 254, 0.08) 0%, transparent 60%),
              radial-gradient(circle at 90% 80%, rgba(157, 78, 221, 0.07) 0%, transparent 50%);
  pointer-events: none;
  z-index: 1;
}

.scanlines {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  background: linear-gradient(
    rgba(18, 16, 16, 0) 50%, 
    rgba(0, 0, 0, 0.25) 50%
  );
  background-size: 100% 4px;
  opacity: 0.4;
}

/* Main Layout Shell */
.app-layout {
  position: relative;
  z-index: 3;
  max-width: 1440px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ============================================================================
   HUD HEADER
   ============================================================================ */
.hud-header {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 0 15px rgba(0, 242, 254, 0.05);
}

.hud-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.2), rgba(157, 78, 221, 0.2));
  border: 1px solid var(--accent-cyan);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.glitch-icon {
  animation: pulse-glow 2s infinite alternate;
}

.hud-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.version-tag {
  font-size: 0.75rem;
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 242, 254, 0.3);
  letter-spacing: 1px;
}

.hud-subtitle {
  font-size: 0.8rem;
  font-family: var(--font-code);
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.danger-text {
  color: var(--accent-neon-green);
  font-weight: 700;
  text-shadow: 0 0 8px rgba(57, 255, 20, 0.5);
}

/* Stats Pills */
.hud-stats {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.stat-pill {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  display: flex;
  flex-direction: column;
  min-width: 130px;
}

.stat-label {
  font-size: 0.65rem;
  font-family: var(--font-code);
  color: var(--text-muted);
  letter-spacing: 1px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.text-cyan { color: var(--accent-cyan); }
.text-green { color: var(--accent-neon-green); }

/* Header Buttons */
.hud-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.cyber-btn-icon {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-cyan);
  color: var(--accent-cyan);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all 0.2s ease;
}

.cyber-btn-icon:hover {
  background: rgba(0, 242, 254, 0.15);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.cyber-btn-icon.active {
  background: rgba(0, 242, 254, 0.25);
  border-color: var(--accent-cyan);
}

/* ============================================================================
   MAIN GRID (CHALLENGES & TERMINAL)
   ============================================================================ */
.main-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   CHALLENGE CARDS
   ============================================================================ */
.challenges-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.challenge-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.challenge-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-cyan);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.card-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle at 100% 0%, rgba(0, 242, 254, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
  gap: 1rem;
}

.card-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.badge {
  display: inline-block;
  font-family: var(--font-code);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.8px;
  width: fit-content;
}

.badge-html {
  background: rgba(255, 115, 0, 0.15);
  color: #ff8c42;
  border: 1px solid rgba(255, 115, 0, 0.3);
}

.badge-css {
  background: rgba(0, 162, 255, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(0, 162, 255, 0.3);
}

.badge-java {
  background: rgba(247, 100, 30, 0.15);
  color: #ff7849;
  border: 1px solid rgba(247, 100, 30, 0.3);
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}

.card-points {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.4rem 0.8rem;
  text-align: center;
  min-width: 85px;
}

.points-val {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--accent-cyan);
}

.points-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-family: var(--font-code);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.mission-brief {
  font-size: 0.92rem;
  color: var(--text-main);
}

.mission-brief strong {
  color: var(--accent-cyan);
  font-family: var(--font-code);
  font-size: 0.85rem;
}

/* Inspection Sandbox Box */
.inspection-sandbox {
  background: rgba(6, 8, 14, 0.85);
  border: 1px dashed var(--border-cyan);
  border-radius: var(--radius-md);
  padding: 1.1rem;
}

.sandbox-label {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 0.65rem;
}

.decoy-container {
  padding: 0.85rem;
  background: rgba(0, 242, 254, 0.03);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-cyan);
}

.decoy-badge {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  margin-bottom: 0.35rem;
}

.decoy-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ============================================================================
   FLAG 2 CONCEALMENT ZONE (CSS CHALLENGE STYLING)
   ============================================================================
   Inspect this element and pseudo-element in DevTools Styles or directly below:
   ============================================================================ */
.css-vault-seal {
  position: relative;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(157, 78, 221, 0.05));
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.css-vault-seal::before {
  content: "SEC-STAMP: #CSS-CRYPT-VALIDATED";
  display: block;
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--accent-purple);
  margin-bottom: 0.4rem;
}

/*
  ============================================================================
  FLAG 2 IN PSEUDO-ELEMENT CONTENT:
  Target: .css-vault-seal::after
  Flag: CTF{ hakon_wium_lie}
  ============================================================================
*/
.css-vault-seal::after {
  content: "CTF{ hakon_wium_lie}";
  display: none;
  visibility: hidden;
  font-size: 0px;
}

.seal-glitch {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: #38bdf8;
  letter-spacing: 1px;
}

.seal-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.3rem;
}

.seal-desc code {
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.4);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-family: var(--font-code);
}

/* Challenge 3 Telemetry Box */
.js-terminal-telemetry {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.8rem;
  padding: 0.5rem;
}

.telemetry-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 0.35rem;
}

.telemetry-key {
  color: var(--text-muted);
}

.telemetry-val {
  color: #facc15;
}

.telemetry-val code {
  color: var(--accent-cyan);
}

.blink-live {
  animation: blink-live 1.5s infinite;
  color: var(--accent-neon-green);
}

@keyframes blink-live {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Hints Accordion */
.hint-accordion {
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.hint-trigger {
  padding: 0.65rem 1rem;
  font-family: var(--font-code);
  font-size: 0.78rem;
  color: var(--accent-amber);
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hint-trigger::-webkit-details-marker {
  display: none;
}

.hint-trigger:hover {
  background: rgba(255, 170, 0, 0.1);
}

.hint-content {
  padding: 0.85rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.83rem;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hint-content code, .hint-content kbd {
  background: rgba(0, 242, 254, 0.12);
  color: var(--accent-cyan);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-family: var(--font-code);
  font-size: 0.78rem;
  border: 1px solid rgba(0, 242, 254, 0.25);
}

/* Card Footer Info (Clean Details Only) */
.card-footer-info {
  margin-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.info-badge {
  font-family: var(--font-code);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  letter-spacing: 0.5px;
}

.info-text {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ============================================================================
   SIDEBAR & TERMINAL EMULATOR
   ============================================================================ */
.sidebar-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 1.5rem;
}

.terminal-panel {
  background: #080b12;
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), inset 0 0 15px rgba(0, 242, 254, 0.05);
  display: flex;
  flex-direction: column;
  height: 440px;
}

.terminal-bar {
  background: #111726;
  border-bottom: 1px solid rgba(0, 242, 254, 0.2);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.terminal-title {
  font-family: var(--font-code);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.terminal-badge {
  font-family: var(--font-code);
  font-size: 0.65rem;
  background: rgba(57, 255, 20, 0.15);
  color: var(--accent-neon-green);
  border: 1px solid rgba(57, 255, 20, 0.3);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
}

.terminal-screen {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  font-family: var(--font-code);
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  color: #cad5e2;
  background: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.02), transparent 70%);
}

.terminal-line {
  line-height: 1.45;
  word-break: break-word;
}

.text-cyan { color: var(--accent-cyan); }
.text-green { color: var(--accent-neon-green); }
.text-red { color: var(--accent-red); }
.text-purple { color: var(--accent-purple); }
.text-muted { color: var(--text-muted); }

.cmd-highlight {
  color: var(--accent-amber);
  font-weight: 600;
}

.terminal-input-bar {
  background: #0d121f;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.65rem 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.terminal-prompt {
  font-family: var(--font-code);
  color: var(--accent-neon-green);
  font-size: 0.85rem;
  font-weight: 700;
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: #fff;
}

.terminal-submit-btn {
  background: rgba(0, 242, 254, 0.15);
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-family: var(--font-code);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
}

.terminal-submit-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

/* Intel Card */
.intel-card {
  background: var(--bg-glass-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.intel-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}

.intel-icon {
  font-size: 1.1rem;
}

.intel-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  letter-spacing: 1px;
  color: var(--accent-cyan);
}

.intel-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.intel-list li strong {
  color: var(--text-main);
}

.intel-list li code {
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-family: var(--font-code);
}

/* System Status Box */
.system-status-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-family: var(--font-code);
  font-size: 0.75rem;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dim);
}

.status-val {
  font-weight: 600;
}

.host-name {
  color: var(--text-main);
}

/* ============================================================================
   FOOTER
   ============================================================================ */
.hud-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.25rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.hud-footer kbd {
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  border: 1px solid rgba(0, 242, 254, 0.3);
}

/* Animations */
@keyframes pulse-glow {
  0% { transform: scale(1); filter: drop-shadow(0 0 2px var(--accent-cyan)); }
  100% { transform: scale(1.08); filter: drop-shadow(0 0 10px var(--accent-cyan)); }
}