/* ==========================================================================
   VIBRANT NEO-ARCADE & POP CYBER THEME FOR CTFd
   Seamless Light Mode & Dark Mode Support
   ========================================================================== */

/* --------------------------------------------------------------------------
   LIGHT MODE TOKENS (DEFAULT)
   -------------------------------------------------------------------------- */
:root,
[data-bs-theme="light"] {
  /* Canvas & Neutral Ink */
  --canvas-bg: #f8fafc;
  --canvas-subtle: #f1f5f9;
  --card-bg: #ffffff;
  --card-hover-bg: #f8faff;
  --ink-dark: #0f172a;
  --ink-secondary: #334155;
  --ink-muted: #475569;
  --ink-light: #64748b;
  --ink-white: #ffffff;
  --navbar-bg: rgba(255, 255, 255, 0.95);
  --jumbotron-bg: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);
  --modal-bg: #ffffff;
  --input-bg: #ffffff;

  /* Vibrant Pop Palette */
  --pop-blue: #3b52d4;
  --pop-blue-hover: #2d3eb0;
  --pop-cyan: #0284c7;
  --pop-pink: #ec4899;
  --pop-purple: #7c3aed;
  --pop-yellow: #f59e0b;
  --pop-orange: #ea580c;
  --pop-teal: #059669;
  --pop-red: #dc2626;

  /* Category Specific Accents */
  --cat-web: #2563eb;
  --cat-crypto: #7c3aed;
  --cat-reverse: #db2777;
  --cat-pwn: #dc2626;
  --cat-forensics: #059669;
  --cat-osint: #d97706;
  --cat-misc: #0891b2;

  /* Typography */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-label: 'Space Grotesk', sans-serif;

  /* Geometry & Borders */
  --pop-border: 2px solid #0f172a;
  --pop-border-thin: 1.5px solid #0f172a;
  --pop-radius-sm: 8px;
  --pop-radius-md: 12px;
  --pop-radius-lg: 16px;
  --pop-radius-pill: 9999px;

  /* Neo-Pop Isometric Shadows */
  --pop-shadow-sm: 2px 2px 0px #0f172a;
  --pop-shadow-md: 4px 4px 0px #0f172a;
  --pop-shadow-lg: 6px 6px 0px #0f172a;
  --pop-shadow-xl: 8px 8px 0px #0f172a;

  /* Background Glow pattern */
  --grid-dot-color: rgba(59, 82, 212, 0.08);

  /* Bootstrap Variable Overrides */
  --bs-body-bg: var(--canvas-bg);
  --bs-body-color: var(--ink-dark);
}

/* --------------------------------------------------------------------------
   DARK MODE TOKENS (HIGH-CONTRAST & CRISP)
   -------------------------------------------------------------------------- */
[data-bs-theme="dark"] {
  --canvas-bg: #0b0f19;
  --canvas-subtle: #151d30;
  --card-bg: #111827;
  --card-hover-bg: #1a233a;
  --ink-dark: #f8fafc;
  --ink-secondary: #cbd5e1;
  --ink-muted: #94a3b8;
  --ink-light: #64748b;
  --ink-white: #ffffff;
  --navbar-bg: rgba(17, 24, 39, 0.95);
  --jumbotron-bg: linear-gradient(135deg, #111827 0%, #1e293b 100%);
  --modal-bg: #111827;
  --input-bg: #1f293d;

  --pop-blue: #60a5fa;
  --pop-blue-hover: #3b82f6;
  --pop-cyan: #38bdf8;
  --pop-pink: #f472b6;
  --pop-purple: #a78bfa;
  --pop-yellow: #fbbf24;
  --pop-orange: #fb923c;
  --pop-teal: #34d399;
  --pop-red: #f87171;

  --pop-border: 2px solid #334155;
  --pop-border-thin: 1.5px solid #334155;

  --pop-shadow-sm: 2px 2px 0px #000000;
  --pop-shadow-md: 4px 4px 0px #000000;
  --pop-shadow-lg: 6px 6px 0px #000000;
  --pop-shadow-xl: 8px 8px 0px #000000;

  --grid-dot-color: rgba(96, 165, 250, 0.12);

  --bs-body-bg: var(--canvas-bg);
  --bs-body-color: var(--ink-dark);
}

/* ==========================================================================
   1. GLOBAL RESET & BASE TYPOGRAPHY
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  background-color: var(--canvas-bg) !important;
  color: var(--ink-dark) !important;
  font-family: var(--font-body) !important;
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
  text-rendering: optimizeLegibility !important;
  background-image: 
    radial-gradient(circle at 1px 1px, var(--grid-dot-color) 1px, transparent 0),
    radial-gradient(circle at 100% 0%, rgba(236, 72, 153, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 0% 100%, rgba(5, 150, 105, 0.04) 0%, transparent 40%);
  background-size: 24px 24px, 100% 100%, 100% 100%;
  background-attachment: fixed;
  transition: background-color 0.2s ease, color 0.2s ease;
}

main[role="main"] {
  flex: 1 0 auto;
  padding-top: 90px;
  padding-bottom: 50px;
}

/* Headings */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: var(--font-heading) !important;
  font-weight: 800 !important;
  color: var(--ink-dark) !important;
  letter-spacing: -0.5px;
  line-height: 1.25;
  -webkit-font-smoothing: antialiased !important;
}

h1, .h1 { font-size: 2.25rem; }
h2, .h2 { font-size: 1.75rem; }
h3, .h3 { font-size: 1.35rem; }
h4, .h4 { font-size: 1.15rem; }
h5, .h5 { font-size: 1rem; }

p, span, div, td, th, li, label {
  color: var(--ink-dark);
}

.text-muted,
small.text-muted,
p.text-muted,
span.text-muted {
  color: var(--ink-muted) !important;
  font-weight: 500 !important;
}

.lead {
  color: var(--ink-secondary) !important;
  font-weight: 500 !important;
}

a {
  color: var(--pop-blue) !important;
  font-weight: 700;
  text-decoration: none !important;
  transition: all 0.15s ease;
}

a:hover {
  color: var(--pop-pink) !important;
}

/* Selection */
::selection {
  background: var(--pop-yellow);
  color: #0f172a;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--canvas-subtle);
}
::-webkit-scrollbar-thumb {
  background: var(--pop-blue);
  border-radius: var(--pop-radius-pill);
  border: 2px solid var(--canvas-subtle);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--pop-pink);
}

/* Code & Pre Blocks */
pre, code, kbd, samp {
  font-family: var(--font-mono) !important;
  font-size: 0.9em;
  background-color: var(--canvas-subtle);
  color: #38bdf8;
  border-radius: var(--pop-radius-sm);
  padding: 3px 6px;
  -webkit-font-smoothing: antialiased;
}

pre {
  padding: 16px 20px !important;
  border: var(--pop-border) !important;
  box-shadow: var(--pop-shadow-sm) !important;
  border-radius: var(--pop-radius-md) !important;
  overflow-x: auto;
  background-color: #0b0f19 !important;
}

pre code {
  padding: 0 !important;
  background: transparent !important;
  color: #38bdf8;
}

/* ==========================================================================
   2. FLOATING VIBRANT NAVBAR (COMPACT & UNCLIPPED)
   ========================================================================== */

.navbar {
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: var(--pop-border) !important;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08) !important;
  padding: 8px 16px !important;
  z-index: 1030;
}

/* FORCE ALL NAVBAR LINKS TO HORIZONTAL INLINE-FLEX (NO STACKING) */
.navbar .navbar-nav,
.navbar-nav {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 4px !important;
}

.navbar .nav-item,
.navbar-nav .nav-item {
  display: inline-flex !important;
  align-items: center !important;
}

.navbar .nav-link,
.navbar-nav .nav-link,
.nav-link,
.nav-pill-item {
  display: inline-flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
  white-space: nowrap !important;
  line-height: 1 !important;
  padding: 8px 14px !important;
}

.navbar .nav-link i,
.navbar-nav .nav-link i,
.nav-link i,
.nav-pill-item i {
  display: inline-block !important;
  margin: 0 !important;
  font-size: 0.95rem !important;
  vertical-align: middle !important;
}

.navbar .nav-link span,
.navbar-nav .nav-link span,
.nav-link span,
.nav-pill-item span {
  display: inline-block !important;
  line-height: 1 !important;
  vertical-align: middle !important;
}

.brand-main-text {
  font-family: var(--font-heading) !important;
  font-size: 0.98rem !important;
  font-weight: 900 !important;
  line-height: 1.1 !important;
  color: var(--ink-dark) !important;
  letter-spacing: 0.5px;
}

.brand-sub-text {
  font-family: var(--font-body) !important;
  font-size: 0.62rem !important;
  font-weight: 750 !important;
  color: var(--pop-blue) !important;
  line-height: 1 !important;
}

/* --- Segmented Floating Pill Bar (Center) --- */
.nav-pills-container {
  background: var(--input-bg) !important;
  border: var(--pop-border-thin) !important;
  border-radius: var(--pop-radius-pill) !important;
  padding: 3px 6px !important;
  gap: 3px !important;
  box-shadow: var(--pop-shadow-sm) !important;
}

.nav-pill-item {
  font-family: var(--font-heading) !important;
  font-size: 0.88rem !important;
  font-weight: 750 !important;
  color: var(--ink-dark) !important;
  padding: 6px 14px !important;
  border-radius: var(--pop-radius-pill) !important;
  text-decoration: none !important;
  white-space: nowrap !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  transition: all 0.15s ease !important;
}

.nav-pill-item:hover {
  background-color: var(--canvas-subtle) !important;
  color: var(--pop-blue) !important;
  transform: translateY(-1px);
}

.nav-pill-item.active {
  background-color: var(--pop-blue) !important;
  color: #ffffff !important;
  box-shadow: var(--pop-shadow-sm) !important;
}

.nav-pill-item.active i {
  color: #ffffff !important;
}

/* --- Admin Console Badge Button (Adaptive Light / Dark Contrast) --- */
.admin-badge-btn {
  font-family: var(--font-heading) !important;
  font-size: 0.82rem !important;
  font-weight: 800 !important;
  background: rgba(37, 99, 235, 0.12) !important;
  color: #1d4ed8 !important;
  border: 1.5px solid #2563eb !important;
  border-radius: var(--pop-radius-pill) !important;
  padding: 5px 13px !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  white-space: nowrap !important;
  box-shadow: var(--pop-shadow-sm) !important;
  transition: all 0.15s ease !important;
}

.admin-badge-btn i {
  color: #2563eb !important;
}

.admin-badge-btn:hover {
  transform: translateY(-1px);
  background: #2563eb !important;
  color: #ffffff !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3) !important;
}

.admin-badge-btn:hover i {
  color: #ffffff !important;
}

/* Dark Mode Admin Badge */
[data-bs-theme="dark"] .admin-badge-btn,
body.dark-mode .admin-badge-btn {
  background: rgba(56, 189, 248, 0.18) !important;
  color: #38bdf8 !important;
  border: 1.5px solid #38bdf8 !important;
}

[data-bs-theme="dark"] .admin-badge-btn i,
body.dark-mode .admin-badge-btn i {
  color: #38bdf8 !important;
}

[data-bs-theme="dark"] .admin-badge-btn:hover,
body.dark-mode .admin-badge-btn:hover {
  background: #0284c7 !important;
  color: #ffffff !important;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.5) !important;
}

[data-bs-theme="dark"] .admin-badge-btn:hover i,
body.dark-mode .admin-badge-btn:hover i {
  color: #ffffff !important;
}

/* --- User Profile Capsule --- */
.user-profile-capsule {
  font-family: var(--font-heading) !important;
  font-size: 0.86rem !important;
  font-weight: 800 !important;
  background: var(--card-bg) !important;
  color: var(--ink-dark) !important;
  border: var(--pop-border-thin) !important;
  border-radius: var(--pop-radius-pill) !important;
  padding: 5px 12px !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  cursor: pointer;
  box-shadow: var(--pop-shadow-sm) !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease !important;
}

.user-profile-capsule:hover {
  transform: translateY(-1px);
  box-shadow: var(--pop-shadow-md) !important;
}

/* --- Icon Round Utility Buttons --- */
.icon-round-btn {
  background: var(--card-bg) !important;
  border: var(--pop-border-thin) !important;
  border-radius: 50% !important;
  width: 34px !important;
  height: 34px !important;
  padding: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  color: var(--ink-dark) !important;
  cursor: pointer;
  box-shadow: var(--pop-shadow-sm) !important;
  transition: transform 0.15s ease, color 0.15s ease !important;
}

.icon-round-btn:hover {
  transform: translateY(-1px);
  color: var(--pop-blue) !important;
}

/* --- Sound & BGM Toggle Buttons --- */
.sound-toggle-btn,
.bgm-toggle-btn {
  font-family: var(--font-heading) !important;
  font-size: 0.78rem !important;
  font-weight: 850 !important;
  color: #ffffff !important;
  border: var(--pop-border-thin) !important;
  border-radius: var(--pop-radius-pill) !important;
  padding: 5px 11px !important;
  box-shadow: var(--pop-shadow-sm) !important;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease !important;
  white-space: nowrap !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
}

.sound-toggle-btn {
  background: var(--pop-teal) !important;
}

.bgm-toggle-btn {
  background: var(--pop-pink) !important;
}

.sound-toggle-btn:hover,
.bgm-toggle-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: var(--pop-shadow-md) !important;
}

/* ==========================================================================
   3. BOUNCY 3D BUTTONS & PILLS
   ========================================================================== */

.btn {
  font-family: var(--font-heading) !important;
  font-size: 0.95rem !important;
  font-weight: 750 !important;
  letter-spacing: 0.2px;
  padding: 10px 20px !important;
  border: var(--pop-border) !important;
  border-radius: var(--pop-radius-md) !important;
  box-shadow: var(--pop-shadow-md) !important;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.12s ease, box-shadow 0.12s ease !important;
  text-decoration: none !important;
}

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

.btn:active,
.btn.active {
  transform: translate(2px, 2px) !important;
  box-shadow: 1px 1px 0px var(--ink-dark) !important;
}

.btn-primary {
  background-color: var(--pop-blue) !important;
  color: #ffffff !important;
}
.btn-primary:hover {
  background-color: var(--pop-blue-hover) !important;
  color: #ffffff !important;
}

.btn-success {
  background-color: var(--pop-teal) !important;
  color: #ffffff !important;
}

.btn-danger {
  background-color: var(--pop-red) !important;
  color: #ffffff !important;
}

.btn-warning {
  background-color: var(--pop-yellow) !important;
  color: #0f172a !important;
}

.btn-info {
  background-color: var(--pop-cyan) !important;
  color: #ffffff !important;
}

.btn-outline-primary {
  background-color: var(--card-bg) !important;
  color: var(--pop-blue) !important;
}

.btn-outline-primary:hover {
  background-color: var(--pop-blue) !important;
  color: #ffffff !important;
}

.btn-close {
  background: var(--pop-red) !important;
  color: var(--ink-white) !important;
  border: var(--pop-border-thin) !important;
  border-radius: var(--pop-radius-pill) !important;
  width: 32px !important;
  height: 32px !important;
  opacity: 1 !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  box-shadow: var(--pop-shadow-sm) !important;
}

.btn-close::after {
  content: "✕";
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 900;
  color: #ffffff;
}

.btn-close:hover {
  transform: scale(1.1) rotate(90deg);
}

/* ==========================================================================
   4. CARDS & HERO JUMBOTRON
   ========================================================================== */

.card {
  background-color: var(--card-bg) !important;
  border: var(--pop-border) !important;
  border-radius: var(--pop-radius-lg) !important;
  box-shadow: var(--pop-shadow-lg) !important;
  margin-bottom: 24px;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--pop-shadow-xl) !important;
}

.card-header {
  background-color: var(--canvas-subtle) !important;
  border-bottom: var(--pop-border) !important;
  font-family: var(--font-heading) !important;
  font-weight: 800 !important;
  padding: 14px 20px !important;
  color: var(--ink-dark) !important;
}

.card-body {
  padding: 24px !important;
}

/* Vibrant Hero Banner / Jumbotron */
.jumbotron {
  background: var(--jumbotron-bg) !important;
  border: var(--pop-border) !important;
  border-radius: var(--pop-radius-lg) !important;
  box-shadow: var(--pop-shadow-xl) !important;
  padding: 40px 24px !important;
  margin-bottom: 36px !important;
  position: relative;
  overflow: hidden;
}

.jumbotron::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--pop-blue), var(--pop-pink), var(--pop-yellow), var(--pop-teal));
}

.scoreboard-title,
.challenges-title {
  font-size: 2.75rem !important;
  font-weight: 900 !important;
  letter-spacing: -1px;
  color: var(--ink-dark) !important;
  margin: 0 !important;
}

/* ==========================================================================
   5. CHALLENGES ("MISSION SELECT" POP CARDS)
   ========================================================================== */

.category-section {
  margin-bottom: 40px;
}

.category-header-banner {
  background: var(--card-bg);
  border: var(--pop-border);
  border-radius: var(--pop-radius-md);
  box-shadow: var(--pop-shadow-md);
  padding: 12px 20px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.category-header-banner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: var(--pop-blue);
  border-top-left-radius: var(--pop-radius-md);
  border-bottom-left-radius: var(--pop-radius-md);
}

.category-pixel-icon {
  font-size: 1.1rem;
  color: var(--pop-blue);
}

.category-name {
  font-family: var(--font-heading) !important;
  font-size: 1.3rem !important;
  font-weight: 800 !important;
  color: var(--ink-dark) !important;
  margin-left: 6px;
}

.category-count-badge {
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 700;
  background-color: var(--pop-blue);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: var(--pop-radius-pill);
}

/* Challenge Cards */
.challenge-card-btn {
  background-color: var(--card-bg);
  border: var(--pop-border);
  border-radius: var(--pop-radius-md);
  box-shadow: var(--pop-shadow-md);
  padding: 16px;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 155px;
  cursor: pointer;
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease, background-color 0.2s ease !important;
  text-decoration: none !important;
  overflow: hidden;
}

.challenge-card-btn:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--pop-shadow-lg);
  background-color: var(--card-hover-bg);
  border-color: var(--pop-blue);
}

.challenge-card-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px #000000;
}

.challenge-card-btn.challenge-solved {
  background-color: rgba(5, 150, 105, 0.08) !important;
  border-color: var(--pop-teal) !important;
  box-shadow: var(--pop-shadow-md) !important;
}

.challenge-card-btn.challenge-solved::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--pop-teal);
}

.challenge-cat-tag {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--canvas-subtle);
  color: var(--pop-blue);
  padding: 3px 8px;
  border-radius: var(--pop-radius-pill);
  border: 1px solid var(--pop-blue);
  text-transform: uppercase;
}

.challenge-pts {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: #0f172a;
  background: var(--pop-yellow);
  padding: 2px 8px;
  border-radius: var(--pop-radius-pill);
  border: var(--pop-border-thin);
}

.challenge-title-text {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink-dark);
  line-height: 1.35;
  margin: 10px 0;
  word-break: break-word;
}

.solved-status-badge {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 800;
  background-color: var(--pop-teal);
  color: #ffffff;
  padding: 3px 10px;
  border-radius: var(--pop-radius-pill);
  border: var(--pop-border-thin);
  box-shadow: 1px 1px 0px #000000;
}

.unsolved-status-badge {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 800;
  background-color: var(--pop-blue);
  color: var(--ink-white);
  padding: 3px 10px;
  border-radius: var(--pop-radius-pill);
  border: var(--pop-border-thin);
  box-shadow: 1px 1px 0px #000000;
}

.challenge-solves-count {
  font-family: var(--font-label);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-muted);
}

/* ==========================================================================
   6. SCOREBOARD (PODIUM & VIBRANT HIGH SCORES)
   ========================================================================== */

.arcade-table-wrapper {
  border: var(--pop-border);
  border-radius: var(--pop-radius-lg);
  box-shadow: var(--pop-shadow-xl);
  background-color: var(--card-bg);
  overflow: hidden;
}

.scoreboard-table {
  width: 100%;
  margin-bottom: 0 !important;
  border-collapse: collapse;
}

.scoreboard-table thead th {
  background-color: var(--canvas-subtle) !important;
  color: var(--ink-dark) !important;
  font-family: var(--font-heading) !important;
  font-size: 0.95rem !important;
  font-weight: 800 !important;
  padding: 16px 20px !important;
  border: none !important;
  border-bottom: var(--pop-border) !important;
  letter-spacing: 0.5px;
}

.scoreboard-table tbody tr {
  border-bottom: 1.5px solid var(--canvas-subtle);
  transition: background-color 0.15s ease;
}

.scoreboard-table tbody tr:hover {
  background-color: var(--card-hover-bg) !important;
}

.rank-cell,
.name-cell,
.score-cell {
  padding: 16px 20px !important;
  vertical-align: middle !important;
}

.player-name-link {
  font-family: var(--font-heading) !important;
  font-size: 1.05rem !important;
  font-weight: 800 !important;
  color: var(--ink-dark) !important;
  text-decoration: none !important;
}

.player-name-link:hover {
  color: var(--pop-blue) !important;
}

.score-points {
  font-family: var(--font-heading) !important;
  font-size: 1.15rem !important;
  font-weight: 900 !important;
  color: var(--pop-blue) !important;
}

.score-unit {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-muted);
  margin-left: 4px;
}

/* Podium Rank Highlights */
.podium-badge {
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: var(--pop-radius-pill);
  border: var(--pop-border-thin);
  box-shadow: var(--pop-shadow-sm);
  display: inline-block;
}

.podium-1 {
  background-color: var(--pop-yellow);
  color: #0f172a;
}

.podium-2 {
  background-color: #e2e8f0;
  color: #0f172a;
}

.podium-3 {
  background-color: #fed7aa;
  color: #0f172a;
}

.rank-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--ink-muted);
}

.rank-row-1 {
  background-color: rgba(251, 191, 36, 0.08) !important;
}

.rank-row-2 {
  background-color: rgba(226, 232, 240, 0.08) !important;
}

.rank-row-3 {
  background-color: rgba(254, 215, 170, 0.08) !important;
}

/* ==========================================================================
   7. FORM INPUTS & MODAL (CHALLENGE DIALOG)
   ========================================================================== */

.form-control,
.form-select,
.custom-select,
select.form-control,
select.custom-select,
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="url"],
input[type="tel"],
input[type="search"],
input[type="file"],
select,
textarea {
  height: auto !important;
  min-height: 46px !important;
  line-height: 1.5 !important;
  font-size: 0.95rem !important;
  font-family: var(--font-body) !important;
  font-weight: 500 !important;
  color: var(--ink-dark) !important;
  background-color: var(--input-bg) !important;
  border: var(--pop-border) !important;
  border-radius: var(--pop-radius-md) !important;
  box-shadow: var(--pop-shadow-sm) !important;
  padding: 8px 14px !important;
  box-sizing: border-box !important;
  display: block !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

select,
select.form-control,
.form-select,
.custom-select {
  padding-top: 8px !important;
  padding-bottom: 8px !important;
  padding-right: 32px !important;
  background-position: right 12px center !important;
  cursor: pointer;
}

textarea.form-control,
textarea {
  min-height: 110px !important;
  line-height: 1.6 !important;
  padding: 12px 14px !important;
}

.form-control:focus,
.form-select:focus,
.custom-select:focus,
input:focus,
textarea:focus,
select:focus {
  border-color: var(--pop-blue) !important;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2), var(--pop-shadow-md) !important;
  outline: none !important;
}

.modal-content {
  background-color: var(--modal-bg) !important;
  border: var(--pop-border) !important;
  border-radius: var(--pop-radius-lg) !important;
  box-shadow: var(--pop-shadow-xl) !important;
  overflow: hidden;
}

.modal-header {
  background-color: var(--canvas-subtle) !important;
  border-bottom: var(--pop-border) !important;
  padding: 16px 24px !important;
}

.modal-body {
  padding: 28px !important;
}

.challenge-name {
  font-size: 1.85rem !important;
  font-weight: 900 !important;
  color: var(--ink-dark) !important;
}

.challenge-value {
  font-family: var(--font-heading) !important;
  font-size: 1.2rem !important;
  font-weight: 800 !important;
  color: var(--pop-blue) !important;
}

.challenge-desc {
  font-size: 1.05rem !important;
  line-height: 1.6 !important;
  color: var(--ink-dark) !important;
  display: block;
  margin: 20px 0;
  padding: 20px;
  background-color: var(--canvas-subtle);
  border: var(--pop-border-thin);
  border-radius: var(--pop-radius-md);
}

/* ==========================================================================
   8. FOOTER (UNCLIPPED & SPACIOUS)
   ========================================================================== */

body {
  margin-bottom: 0 !important;
}

.footer {
  position: relative !important;
  height: auto !important;
  min-height: 90px !important;
  line-height: 1.5 !important;
  background-color: var(--card-bg) !important;
  border-top: var(--pop-border) !important;
  padding: 30px 0 36px !important;
  font-family: var(--font-heading) !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
  text-align: center;
  color: var(--ink-dark) !important;
  margin-top: auto !important;
  overflow: visible !important;
  display: block !important;
}

.footer .container {
  height: auto !important;
  line-height: 1.5 !important;
}

/* ==========================================================================
   9. DROPDOWNS & SCROLLBAR OPTIMIZATION
   ========================================================================== */
.language-dropdown-menu {
  max-height: 320px !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  border-radius: var(--pop-radius-md) !important;
  border: var(--pop-border-thin) !important;
  box-shadow: var(--pop-shadow-md) !important;
}

.language-dropdown-menu::-webkit-scrollbar {
  width: 6px;
}

.language-dropdown-menu::-webkit-scrollbar-track {
  background: var(--canvas-subtle);
  border-radius: 4px;
}

.language-dropdown-menu::-webkit-scrollbar-thumb {
  background: var(--pop-blue);
  border-radius: 4px;
}

.language-dropdown-menu .dropdown-item {
  cursor: pointer !important;
  transition: all 0.15s ease-in-out;
}

.language-dropdown-menu .dropdown-item:hover {
  background-color: var(--card-hover-bg) !important;
  color: var(--pop-blue) !important;
  padding-left: 20px !important;
}

/* ==========================================================================
   10. HIGH-TECH CYBER PODIUM & MISSION CONTROL STYLING
   ========================================================================== */

/* Podium Spotlight Cards */
.podium-spotlight-card {
  border-radius: var(--pop-radius-lg);
  border: var(--pop-border);
  box-shadow: var(--pop-shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background-color: var(--card-bg);
  position: relative;
  overflow: hidden;
}

.podium-spotlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--pop-shadow-lg);
}

.podium-gold {
  border-color: #f59e0b !important;
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.12) 0%, var(--card-bg) 100%) !important;
  box-shadow: 0 8px 24px -4px rgba(245, 158, 11, 0.25), var(--pop-shadow-md) !important;
}

.podium-silver {
  border-color: #94a3b8 !important;
  background: linear-gradient(180deg, rgba(148, 163, 184, 0.12) 0%, var(--card-bg) 100%) !important;
}

.podium-bronze {
  border-color: #d97706 !important;
  background: linear-gradient(180deg, rgba(217, 119, 6, 0.1) 0%, var(--card-bg) 100%) !important;
}

.podium-badge-icon {
  font-size: 1.8rem;
  margin-bottom: 6px;
}

.podium-rank-title {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--ink-secondary);
  margin-bottom: 6px;
}

.podium-player-name a {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--ink-dark);
  text-decoration: none;
}

.podium-player-name a:hover {
  color: var(--pop-blue);
  text-decoration: underline;
}

.podium-player-score {
  font-family: var(--font-mono);
  font-weight: 800;
  color: var(--pop-blue);
  font-size: 1.2rem;
}

/* Filter Pill Bar */
.filter-pills-bar::-webkit-scrollbar {
  height: 4px;
}

.filter-pills-bar::-webkit-scrollbar-thumb {
  background: var(--pop-blue);
  border-radius: 4px;
}

.filter-pill-btn {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: var(--pop-border-thin) !important;
  box-shadow: var(--pop-shadow-sm);
}

.filter-pill-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--pop-shadow-md);
}

/* Pulse Animation */
@keyframes pulse {
  0% {
    transform: scale(0.95);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
  100% {
    transform: scale(0.95);
    opacity: 0.7;
  }
}

/* ==========================================================================
   11. CUSTOM HIGH-TECH CYBER MODAL POPUP DIALOGS & HINT DETAILS
   ========================================================================== */
.custom-hint-details summary {
  list-style: none;
  cursor: pointer;
  outline: none;
}
.custom-hint-details summary::-webkit-details-marker {
  display: none;
}

.cyber-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: cyberModalFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.cyber-modal-fadeout {
  animation: cyberModalFadeOut 0.18s ease-in forwards !important;
}

.cyber-modal-card {
  background: var(--card-bg);
  border: var(--pop-border);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.4), var(--pop-shadow-xl);
  border-radius: var(--pop-radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 28px 24px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  animation: cyberModalScaleUp 0.22s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.cyber-modal-icon-badge {
  font-size: 2.4rem;
  width: 68px;
  height: 68px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--canvas-subtle);
  border: var(--pop-border);
  border-radius: 20px;
  box-shadow: var(--pop-shadow-sm);
}

.cyber-modal-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--ink-dark);
  margin-bottom: 12px;
}

.cyber-modal-body {
  font-size: 0.98rem;
  color: var(--ink-secondary);
  line-height: 1.55;
  margin-bottom: 16px;
}

.cyber-modal-highlight {
  background: rgba(245, 158, 11, 0.12);
  border: 1.5px solid var(--pop-yellow);
  color: #b45309;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 20px;
}

[data-bs-theme="dark"] .cyber-modal-highlight {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
}

.cyber-modal-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
}

.cyber-modal-actions button {
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 18px;
  border-radius: 10px;
  border: var(--pop-border-thin) !important;
  box-shadow: var(--pop-shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cyber-modal-actions button:hover {
  transform: translateY(-2px);
  box-shadow: var(--pop-shadow-md);
}

@keyframes cyberModalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes cyberModalFadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes cyberModalScaleUp {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ==========================================================================
   12. ULTRA-RESPONSIVE MOBILE & PC UI/UX ENHANCEMENTS
   ========================================================================== */

/* --- Mobile Devices (Phones: up to 576px) --- */
@media (max-width: 576px) {
  body {
    padding-top: 72px;
  }

  /* Compact Navbar for Phones */
  .navbar {
    padding: 8px 0 !important;
  }
  .navbar .container-fluid {
    padding: 0 12px !important;
  }
  .navbar-brand {
    gap: 8px !important;
    margin-right: 0 !important;
  }
  .navbar-brand img {
    height: 28px !important;
  }
  .brand-main-text {
    font-size: 0.98rem !important;
    letter-spacing: 0.5px !important;
  }
  .brand-sub-text {
    font-size: 0.55rem !important;
    letter-spacing: 0.3px !important;
  }

  /* Mobile Collapsible Navigation Menu */
  .navbar-collapse {
    background: var(--card-bg) !important;
    border: var(--pop-border) !important;
    border-radius: var(--pop-radius) !important;
    padding: 16px 12px !important;
    margin-top: 10px !important;
    box-shadow: var(--pop-shadow-lg) !important;
  }
  .nav-pills-container {
    flex-direction: column !important;
    width: 100% !important;
    background: transparent !important;
    border: none !important;
    gap: 6px !important;
    padding: 0 !important;
    margin-bottom: 12px !important;
  }
  .nav-pill-item {
    width: 100% !important;
    justify-content: flex-start !important;
    padding: 11px 16px !important;
    border-radius: 10px !important;
    font-size: 0.95rem !important;
    border: var(--pop-border-thin) !important;
  }
  .navbar-nav.d-flex.align-items-center.gap-2 {
    width: 100% !important;
    flex-wrap: wrap !important;
    justify-content: space-between !important;
    padding-top: 10px !important;
    border-top: var(--pop-border-thin) !important;
  }
  .user-profile-capsule {
    width: 100% !important;
    justify-content: center !important;
    padding: 10px 16px !important;
    margin-top: 6px !important;
  }

  /* Hero Jumbotron Scaling */
  .jumbotron {
    padding: 24px 14px !important;
    margin-bottom: 20px !important;
    border-radius: 16px !important;
  }
  .jumbotron h1.display-4 {
    font-size: 1.85rem !important;
    line-height: 1.2 !important;
    margin-bottom: 12px !important;
  }
  .jumbotron .lead {
    font-size: 0.95rem !important;
    line-height: 1.5 !important;
    margin-bottom: 20px !important;
  }
  .jumbotron .btn-lg {
    width: 100% !important;
    padding: 12px 18px !important;
    font-size: 0.95rem !important;
    margin-bottom: 8px !important;
  }

  /* Quick Ticker Stat Grid on Phone */
  .jumbotron .row.g-2 > div {
    padding: 4px !important;
  }
  .jumbotron .row.g-2 .p-3 {
    padding: 10px 8px !important;
  }
  .jumbotron .row.g-2 [style*="font-size: 1.4rem"] {
    font-size: 1.15rem !important;
  }
  .jumbotron .row.g-2 [style*="font-size: 0.78rem"] {
    font-size: 0.68rem !important;
  }

  /* Challenges Filter Bar & Search */
  .challenges-header {
    padding: 24px 12px !important;
  }
  .challenges-title {
    font-size: 1.8rem !important;
  }
  .filter-pills-bar {
    padding-bottom: 8px !important;
    margin-bottom: 16px !important;
  }
  .filter-pill-btn {
    padding: 6px 12px !important;
    font-size: 0.78rem !important;
  }

  /* Challenge Cards Grid on Mobile */
  .category-section {
    margin-bottom: 28px !important;
  }
  .category-name {
    font-size: 1.15rem !important;
  }
  .challenge-card-btn {
    padding: 14px 12px !important;
    min-height: 80px !important;
    border-radius: 12px !important;
  }
  .challenge-name {
    font-size: 0.92rem !important;
  }
  .challenge-value {
    font-size: 0.82rem !important;
  }

  /* Challenge Modal Dialog on Phones */
  #challenge-window .modal-dialog {
    margin: 8px !important;
    width: calc(100% - 16px) !important;
    max-width: 100% !important;
  }
  #challenge-window .modal-content {
    border-radius: 16px !important;
  }
  #challenge-window .modal-body {
    padding: 16px 14px !important;
  }
  #challenge-window .modal-header {
    padding: 14px 14px !important;
  }
  #challenge-window .challenge-desc {
    font-size: 0.92rem !important;
    line-height: 1.5 !important;
  }
  #challenge-window .challenge-submit-group {
    flex-direction: column !important;
    gap: 8px !important;
  }
  #challenge-window .challenge-submit-group input {
    width: 100% !important;
    border-radius: 10px !important;
  }
  #challenge-window .challenge-submit-group button {
    width: 100% !important;
    border-radius: 10px !important;
    padding: 12px !important;
  }

  /* Scoreboard Podium & Table on Mobile */
  .podium-spotlight-card {
    margin-bottom: 10px !important;
    padding: 16px 12px !important;
  }
  .arcade-table-wrapper {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    border-radius: 12px !important;
  }
  .scoreboard-table {
    min-width: 520px !important;
  }
  .scoreboard-table th, .scoreboard-table td {
    padding: 10px 8px !important;
    font-size: 0.88rem !important;
  }

  /* Cyber Modal Popups on Phones */
  .cyber-modal-card {
    padding: 20px 16px !important;
    border-radius: 16px !important;
  }
  .cyber-modal-icon-badge {
    width: 54px !important;
    height: 54px !important;
    font-size: 1.8rem !important;
    margin-bottom: 12px !important;
  }
  .cyber-modal-title {
    font-size: 1.15rem !important;
  }
  .cyber-modal-body {
    font-size: 0.88rem !important;
  }
  .cyber-modal-actions {
    flex-direction: column-reverse !important;
    gap: 8px !important;
  }
  .cyber-modal-actions button {
    width: 100% !important;
    padding: 12px !important;
  }
}

/* --- Tablets & Medium Screens (577px to 991px) --- */
@media (min-width: 577px) and (max-width: 991px) {
  body {
    padding-top: 80px;
  }

  .jumbotron h1.display-4 {
    font-size: 2.3rem !important;
  }
  .category-challenges .row > div {
    width: 50% !important;
  }
  #challenge-window .modal-dialog {
    max-width: 90% !important;
    margin: 20px auto !important;
  }
  .scoreboard-table {
    min-width: 600px !important;
  }
}

/* --- Desktop & High-Resolution Displays (992px and up) --- */
@media (min-width: 992px) {
  body {
    padding-top: 86px;
  }

  .challenge-card-btn {
    transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.18s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
  }
  .challenge-card-btn:hover {
    transform: translateY(-4px) scale(1.01) !important;
    box-shadow: var(--pop-shadow-lg) !important;
  }

  .podium-spotlight-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: var(--pop-shadow-lg) !important;
  }
}

/* Touch-Friendly Improvements for All Devices */
button, .btn, .nav-link, .challenge-card-btn, a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ==========================================================================
   13. FIRST BLOOD CELEBRATION TOAST & SPARKLE BANNER
   ========================================================================== */
#first-blood-container {
  position: fixed;
  top: 78px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999999;
  width: min(640px, calc(100vw - 20px));
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.first-blood-banner {
  pointer-events: auto;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 40%, #3b0764 70%, #450a0a 100%);
  border: 2px solid #f59e0b;
  border-radius: 16px;
  box-shadow: 0 12px 35px -5px rgba(220, 38, 38, 0.5), 0 0 25px rgba(245, 158, 11, 0.5);
  color: #ffffff;
  padding: 16px 42px 14px 20px;
  animation: fbSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards, fbGlowPulse 2s infinite alternate;
}

.first-blood-banner.fb-fade-out {
  animation: fbSlideOut 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.fb-badge-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 1px;
  color: #facc15;
  text-shadow: 0 0 8px rgba(250, 204, 21, 0.7);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
}

.fb-title-text {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.fb-solver-name {
  color: #38bdf8;
  font-weight: 900;
  background: rgba(56, 189, 248, 0.15);
  padding: 2px 10px;
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.fb-action-text {
  color: #cbd5e1;
  font-weight: 500;
  font-size: 0.95rem;
}

.fb-chal-name {
  color: #f43f5e;
  font-weight: 900;
  text-shadow: 0 0 6px rgba(244, 63, 94, 0.5);
}

.fb-pts-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: 6px;
  font-weight: 800;
}

.fb-category-tag {
  font-size: 0.78rem;
  color: #94a3b8;
}

.fb-close-btn {
  position: absolute;
  top: 10px;
  right: 12px;
  background: transparent;
  border: none;
  color: #94a3b8;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px;
  transition: color 0.15s ease, transform 0.15s ease;
}

.fb-close-btn:hover {
  color: #f43f5e;
  transform: scale(1.15);
}

@keyframes fbSlideIn {
  0% {
    opacity: 0;
    transform: translateY(-40px) scale(0.92);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes fbSlideOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-30px) scale(0.92);
  }
}

@keyframes fbGlowPulse {
  0% {
    box-shadow: 0 10px 30px -5px rgba(220, 38, 38, 0.4), 0 0 15px rgba(245, 158, 11, 0.4);
  }
  100% {
    box-shadow: 0 14px 40px -5px rgba(220, 38, 38, 0.7), 0 0 30px rgba(245, 158, 11, 0.8);
  }
}