/* ==========================================================================
   MSP AI CTF 2026 - Cyber AI Dark Theme for CTFd
   Matches the AI Hacking / DeepSeek Challenge Aesthetic
   ========================================================================== */

:root {
  color-scheme: dark;
  --bg-main: #06070b;
  --bg-surface: rgba(17, 20, 32, 0.85);
  --bg-surface-elevated: rgba(24, 28, 44, 0.95);
  --bg-input: rgba(10, 12, 20, 0.65);
  
  --accent-pink: #ff4fa3;
  --accent-pink-glow: rgba(255, 79, 163, 0.35);
  --accent-pink-soft: rgba(255, 79, 163, 0.14);
  
  --accent-cyan: #00e5ff;
  --accent-cyan-soft: rgba(0, 229, 255, 0.14);
  --accent-purple: #a855f7;
  
  --status-solved: #10b981;
  --status-solved-soft: rgba(16, 185, 129, 0.15);
  --status-solved-glow: rgba(16, 185, 129, 0.4);
  
  --status-easy: #10b981;
  --status-medium: #f59e0b;
  --status-hard: #f43f5e;
  
  --text-primary: #f5ebf2;
  --text-secondary: #9fa3b8;
  --text-muted: #6b7280;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(255, 79, 163, 0.5);
  --glass-shadow: 0 12px 35px rgba(0, 0, 0, 0.45);
  --backdrop-blur: blur(16px);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Base Document */
html, body {
  font-family: var(--font-family) !important;
  background-color: var(--bg-main) !important;
  color: var(--text-primary) !important;
  min-height: 100vh;
  margin: 0;
  padding: 0;
}

body {
  background:
    radial-gradient(circle at 85% 15%, rgba(255, 79, 163, 0.14), transparent 30rem),
    radial-gradient(circle at 15% 75%, rgba(0, 229, 255, 0.08), transparent 32rem),
    radial-gradient(circle at 50% 50%, rgba(168, 85, 247, 0.06), transparent 40rem),
    linear-gradient(180deg, #06070b 0%, #0c0e17 100%) !important;
  background-attachment: fixed !important;
}

/* Subtle Scanline Texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(180deg, transparent 0 2px, rgba(255, 79, 163, 0.015) 2px 4px);
  z-index: 9999;
}

/* Navbar */
.navbar {
  background: rgba(8, 10, 18, 0.88) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-bottom: 1px solid var(--border-subtle) !important;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6) !important;
  padding: 0.75rem 1.25rem !important;
}

.navbar-brand {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.02em !important;
  color: #ffffff !important;
  font-size: 1.2rem !important;
}

.navbar-brand img, .ctf_logo {
  height: 38px !important;
  width: 38px !important;
  object-fit: cover !important;
  border-radius: var(--radius-sm) !important;
  border: 1px solid rgba(255, 79, 163, 0.3) !important;
  box-shadow: 0 0 12px rgba(255, 79, 163, 0.25) !important;
  transition: var(--transition) !important;
}

.navbar-brand:hover img {
  transform: scale(1.05);
  box-shadow: 0 0 16px rgba(255, 79, 163, 0.5) !important;
}

.nav-link {
  color: var(--text-secondary) !important;
  font-weight: 500 !important;
  font-size: 0.95rem !important;
  padding: 0.5rem 0.9rem !important;
  border-radius: var(--radius-sm) !important;
  transition: var(--transition) !important;
}

.nav-link:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.05) !important;
}

.nav-link.active {
  color: #ffffff !important;
  background: var(--accent-pink-soft) !important;
  border: 1px solid rgba(255, 79, 163, 0.3) !important;
  box-shadow: 0 0 12px rgba(255, 79, 163, 0.2) !important;
}

/* Glassmorphism Containers & Cards */
.card, .jumbotron, .dropdown-menu, .modal-content, .list-group-item, .accordion-item, .popover {
  background: var(--bg-surface) !important;
  backdrop-filter: var(--backdrop-blur) !important;
  -webkit-backdrop-filter: var(--backdrop-blur) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--glass-shadow) !important;
  color: var(--text-primary) !important;
}

.jumbotron {
  padding: 2.5rem 2rem !important;
  margin-bottom: 2rem !important;
  background: linear-gradient(135deg, rgba(24, 28, 44, 0.9), rgba(17, 20, 32, 0.95)) !important;
  border: 1px solid var(--border-subtle) !important;
}

/* Buttons */
.btn {
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  padding: 0.55rem 1.25rem !important;
  transition: var(--transition) !important;
}

.btn-primary, .btn-info {
  background: linear-gradient(135deg, var(--accent-pink), #e02882) !important;
  border: none !important;
  color: #ffffff !important;
  box-shadow: 0 4px 18px var(--accent-pink-glow) !important;
}

.btn-primary:hover, .btn-info:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 24px rgba(255, 79, 163, 0.6) !important;
  filter: brightness(1.08) !important;
  color: #ffffff !important;
}

.btn-success {
  background: linear-gradient(135deg, var(--status-solved), #059669) !important;
  border: none !important;
  box-shadow: 0 4px 18px var(--status-solved-glow) !important;
  color: #ffffff !important;
}

.btn-success:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 24px rgba(16, 185, 129, 0.6) !important;
}

.btn-outline-primary, .btn-secondary, .btn-outline-secondary, .btn-dark {
  background: rgba(255, 255, 255, 0.05) !important;
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  color: var(--text-primary) !important;
}

.btn-outline-primary:hover, .btn-secondary:hover, .btn-outline-secondary:hover {
  background: var(--accent-pink-soft) !important;
  border-color: var(--accent-pink) !important;
  color: #ffffff !important;
  box-shadow: 0 0 15px rgba(255, 79, 163, 0.25) !important;
}

/* Category Headers on /challenges */
.category-header {
  margin-top: 2rem !important;
  margin-bottom: 1rem !important;
}

.category-header h3 {
  font-size: 1.35rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.01em !important;
  color: var(--accent-pink) !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
}

.category-header h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-pink);
  box-shadow: 0 0 10px var(--accent-pink);
}

/* Challenge Cards / Buttons */
.challenge-button {
  background: linear-gradient(145deg, rgba(24, 28, 44, 0.9), rgba(16, 18, 28, 0.95)) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: var(--radius-md) !important;
  padding: 1.25rem 1rem !important;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35) !important;
  transition: var(--transition) !important;
  position: relative !important;
  overflow: hidden !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  min-height: 100px !important;
}

.challenge-button:hover {
  transform: translateY(-3px) !important;
  border-color: rgba(255, 79, 163, 0.45) !important;
  box-shadow: 0 10px 28px rgba(255, 79, 163, 0.25) !important;
  background: linear-gradient(145deg, rgba(32, 36, 56, 0.95), rgba(20, 22, 34, 0.98)) !important;
}

.challenge-button p, .challenge-inner p {
  color: #ffffff !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  margin-bottom: 0.35rem !important;
}

.challenge-button span, .challenge-inner span {
  color: var(--accent-cyan) !important;
  font-weight: 700 !important;
  font-size: 0.9rem !important;
  background: var(--accent-cyan-soft) !important;
  padding: 0.2rem 0.6rem !important;
  border-radius: var(--radius-pill) !important;
  border: 1px solid rgba(0, 229, 255, 0.2) !important;
}

/* Solved Challenge State */
.challenge-button.challenge-solved,
.challenge-solved,
.solved,
button.challenge-solved,
.btn.challenge-solved {
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.15), rgba(12, 110, 80, 0.25)) !important;
  border: 1px solid var(--status-solved) !important;
  box-shadow: 0 0 24px rgba(16, 185, 129, 0.35) !important;
  color: #ffffff !important;
}

.challenge-button.challenge-solved:hover {
  border-color: #34d399 !important;
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.55) !important;
  transform: translateY(-3px) !important;
}

.challenge-button.challenge-solved .challenge-inner p,
.challenge-solved p {
  color: #a7f3d0 !important;
}

.challenge-button.challenge-solved .challenge-inner span,
.challenge-solved span {
  color: #ffffff !important;
  background: rgba(16, 185, 129, 0.3) !important;
  border-color: rgba(16, 185, 129, 0.4) !important;
}

.challenge-button.challenge-solved::after {
  content: "SOLVED ✓";
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: var(--status-solved);
  color: #06070b;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Challenge Modal */
.modal-backdrop.show {
  background-color: #06070b !important;
  opacity: 0.85 !important;
  backdrop-filter: blur(8px) !important;
}

.modal-content {
  background: rgba(15, 18, 30, 0.96) !important;
  border: 1px solid rgba(255, 79, 163, 0.25) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(255, 79, 163, 0.15) !important;
  border-radius: var(--radius-lg) !important;
}

.modal-header {
  border-bottom: 1px solid var(--border-subtle) !important;
  padding: 1.25rem 1.5rem !important;
}

.modal-title {
  color: #ffffff !important;
  font-weight: 800 !important;
  font-size: 1.4rem !important;
}

.modal-body {
  padding: 1.5rem !important;
}

.modal-footer {
  border-top: 1px solid var(--border-subtle) !important;
  padding: 1.25rem 1.5rem !important;
}

.challenge-desc {
  color: var(--text-secondary) !important;
  line-height: 1.65 !important;
  font-size: 0.98rem !important;
}

.challenge-desc h1, .challenge-desc h2, .challenge-desc h3, .challenge-desc h4 {
  color: #ffffff !important;
  margin-top: 1rem !important;
  margin-bottom: 0.5rem !important;
}

.challenge-desc a {
  color: var(--accent-cyan) !important;
  text-decoration: none !important;
  font-weight: 600 !important;
}

.challenge-desc a:hover {
  text-decoration: underline !important;
  color: #80f0ff !important;
}

.challenge-desc hr {
  border-color: var(--border-subtle) !important;
  margin: 1.25rem 0 !important;
}

.challenge-desc code, pre code {
  background: rgba(0, 0, 0, 0.5) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  color: #ff94c9 !important;
  padding: 0.2rem 0.45rem !important;
  border-radius: var(--radius-sm) !important;
  font-size: 0.9em !important;
}

/* Forms & Inputs */
input[type="text"], input[type="password"], input[type="email"], input[type="number"], select, textarea, .form-control, .form-select {
  background: var(--bg-input) !important;
  border: 1px solid var(--border-subtle) !important;
  border-radius: var(--radius-sm) !important;
  color: #ffffff !important;
  padding: 0.65rem 0.9rem !important;
  transition: var(--transition) !important;
}

input:focus, select:focus, textarea:focus, .form-control:focus, .form-select:focus {
  outline: none !important;
  border-color: var(--accent-pink) !important;
  box-shadow: 0 0 0 3px rgba(255, 79, 163, 0.25) !important;
  background: rgba(14, 17, 28, 0.85) !important;
  color: #ffffff !important;
}

/* Tables & Scoreboard */
.table {
  color: var(--text-primary) !important;
  --bs-table-bg: transparent !important;
}

.table th {
  color: var(--text-muted) !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.08em !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
}

.table td {
  border-color: var(--border-subtle) !important;
  vertical-align: middle !important;
  padding: 0.9rem 0.75rem !important;
}

.table tbody tr:hover {
  background: rgba(255, 79, 163, 0.04) !important;
}

.scoreboard-row:nth-child(1) td:first-child, tr:nth-child(1) .badge-rank {
  color: #facc15 !important;
  text-shadow: 0 0 10px rgba(250, 204, 21, 0.4);
}

.scoreboard-row:nth-child(2) td:first-child, tr:nth-child(2) .badge-rank {
  color: #cbd5e1 !important;
  text-shadow: 0 0 10px rgba(203, 213, 225, 0.4);
}

.scoreboard-row:nth-child(3) td:first-child, tr:nth-child(3) .badge-rank {
  color: #fb923c !important;
  text-shadow: 0 0 10px rgba(251, 146, 60, 0.4);
}

/* Badges */
.badge {
  border-radius: var(--radius-pill) !important;
  padding: 0.35em 0.8em !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em !important;
}

.badge-primary, .bg-primary {
  background-color: var(--accent-pink) !important;
  color: #ffffff !important;
}

.badge-success, .bg-success {
  background-color: var(--status-solved) !important;
  color: #06070b !important;
}

.badge-warning, .bg-warning {
  background-color: var(--status-medium) !important;
  color: #06070b !important;
}

.badge-danger, .bg-danger {
  background-color: var(--status-hard) !important;
  color: #ffffff !important;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  color: #ffffff !important;
  font-weight: 800 !important;
}

/* Hero Section on Homepage */
.msp-hero-container {
  max-width: 860px;
  margin: 3.5rem auto;
  padding: 3.5rem 2.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(20, 24, 38, 0.9), rgba(12, 14, 24, 0.95)) !important;
  border: 1px solid rgba(255, 79, 163, 0.22) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65), 0 0 45px rgba(255, 79, 163, 0.12) !important;
  backdrop-filter: var(--backdrop-blur) !important;
  -webkit-backdrop-filter: var(--backdrop-blur) !important;
}

.msp-hero-logo {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 32px;
  border: 2px solid rgba(255, 79, 163, 0.45);
  box-shadow: 0 0 35px rgba(255, 79, 163, 0.35);
  margin-bottom: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.msp-hero-logo:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 0 50px rgba(255, 79, 163, 0.6);
}

.msp-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 79, 163, 0.12);
  border: 1px solid rgba(255, 79, 163, 0.3);
  color: #ffd5e9;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.msp-hero-title {
  font-size: 3.2rem !important;
  font-weight: 900 !important;
  letter-spacing: -0.03em !important;
  line-height: 1.1 !important;
  background: linear-gradient(135deg, #ffffff 40%, #ff85c2 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  margin-bottom: 1rem !important;
}

.msp-hero-subtitle {
  color: #a4a8bd !important;
  font-size: 1.15rem !important;
  max-width: 580px;
  margin: 0 auto 2.25rem !important;
  line-height: 1.65 !important;
}

.msp-hero-buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.75rem;
  width: 100%;
}

.msp-hero-buttons .btn {
  padding: 0.85rem 2.2rem !important;
  font-size: 1.05rem !important;
  border-radius: var(--radius-md) !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.5rem !important;
}

.msp-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  width: 100%;
  text-align: left;
}

.msp-feature-card {
  background: rgba(24, 28, 44, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.msp-feature-card:hover {
  border-color: rgba(255, 79, 163, 0.35);
  background: rgba(30, 35, 54, 0.85);
  transform: translateY(-2px);
}

.msp-feature-card h5 {
  color: var(--accent-pink) !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
  margin-bottom: 0.4rem !important;
  display: flex !important;
  align-items: center !important;
  gap: 0.5rem !important;
}

.msp-feature-card p {
  color: var(--text-secondary) !important;
  font-size: 0.88rem !important;
  margin: 0 !important;
  line-height: 1.5 !important;
}

@media (max-width: 768px) {
  .msp-hero-container {
    padding: 2.25rem 1.25rem;
    margin: 1.5rem auto;
  }
  .msp-hero-title {
    font-size: 2.2rem !important;
  }
  .msp-hero-logo {
    width: 100px;
    height: 100px;
    border-radius: 24px;
  }
  .msp-hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .msp-hero-buttons .btn {
    width: 100%;
  }
}

/* Footer */
footer.footer {
  background: rgba(6, 7, 11, 0.95) !important;
  backdrop-filter: blur(12px) !important;
  border-top: 1px solid var(--border-subtle) !important;
  padding: 1.75rem 0 !important;
  color: var(--text-muted) !important;
}

footer.footer a {
  color: var(--text-secondary) !important;
  text-decoration: none !important;
}

footer.footer a:hover {
  color: var(--accent-pink) !important;
}