/*
 * CypherCon CTFd Theme
 * Based on the CTFd core theme (https://github.com/CTFd/ctfd)
 * Inspired by the CypherCon conference aesthetic (https://cyphercon.com)
 *
 * Color system:
 *   Background    #0a0a0a  (near black — the canvas)
 *   Surface       #111111  (cards, modals, inputs)
 *   Surface-2     #181818  (zebra rows, hover states)
 *   Border        #222222  (default borders)
 *   Border-light  #2d2d2d  (subtle borders)
 *
 *   Green         #3dd68c  (primary accent — captures, success)
 *   Cyan          #4de1e1  (secondary accent — links hover)
 *   Red           #ff4757  (danger, incorrect)
 *   Amber         #ffa502  (warning, already solved)
 *   Blue          #4299e1  (info)
 *
 *   Text          #e0e0e0  (body copy)
 *   Text-muted    #606060  (secondary text)
 *   Heading       #ffffff  (page / card headings)
 */

/* =========================================================
   1. CSS Custom Properties
   ========================================================= */

:root {
  --cc-bg:           #0a0a0a;
  --cc-surface:      #111111;
  --cc-surface-2:    #181818;
  --cc-border:       #222222;
  --cc-border-light: #2d2d2d;

  --cc-green:        #3dd68c;
  --cc-green-dim:    #2ab07a;
  --cc-green-glow:   rgba(61, 214, 140, 0.18);
  --cc-green-bg:     rgba(61, 214, 140, 0.08);

  --cc-cyan:         #4de1e1;
  --cc-red:          #ff4757;
  --cc-amber:        #ffa502;
  --cc-blue:         #4299e1;

  --cc-text:         #e0e0e0;
  --cc-text-muted:   #606060;
  --cc-heading:      #ffffff;
}

/* =========================================================
   2. Bootstrap 5 CSS variable overrides
      These cascade into every Bootstrap component automatically.
   ========================================================= */

[data-bs-theme="dark"] {
  --bs-body-bg:           var(--cc-bg);
  --bs-body-color:        var(--cc-text);

  --bs-secondary-bg:      var(--cc-surface);
  --bs-tertiary-bg:       var(--cc-surface-2);

  --bs-primary:           var(--cc-green);
  --bs-primary-rgb:       61, 214, 140;

  --bs-secondary:         #3a3a3a;
  --bs-secondary-rgb:     58, 58, 58;

  --bs-dark:              var(--cc-surface);
  --bs-dark-rgb:          17, 17, 17;

  --bs-border-color:      var(--cc-border);
  --bs-border-color-translucent: rgba(255, 255, 255, 0.06);

  --bs-link-color:        var(--cc-green);
  --bs-link-hover-color:  var(--cc-cyan);

  --bs-code-color:        var(--cc-cyan);
}

/* =========================================================
   3. Typography
   ========================================================= */

body {
  font-family: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--cc-bg);
  color: var(--cc-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-weight: 600;
  color: var(--cc-heading);
  letter-spacing: 0.01em;
}

a {
  color: var(--cc-green);
  transition: color 0.15s ease;
}

a:hover {
  color: var(--cc-cyan);
}

code, pre, kbd, samp {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;
}

::selection {
  background-color: rgba(61, 214, 140, 0.25);
  color: #fff;
}

/* =========================================================
   4. Scrollbars
   ========================================================= */

::-webkit-scrollbar       { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--cc-bg); }
::-webkit-scrollbar-thumb { background: var(--cc-border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cc-green); }

/* =========================================================
   5. Navbar
   ========================================================= */

.cc-navbar {
  background-color: #050505 !important;
  border-bottom: 1px solid var(--cc-border);
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

/* Brand */
.cc-brand {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-decoration: none !important;
}

.cc-brand-name {
  font-family: 'Space Grotesk', monospace;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.cc-brand-sub {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.52rem;
  font-weight: 400;
  color: var(--cc-green);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
}

/* Nav links */
.cc-navbar .navbar-nav .nav-link {
  color: #a0a0a0 !important;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.7rem !important;
  transition: color 0.15s ease;
  text-transform: uppercase;
}

.cc-navbar .navbar-nav .nav-link:hover {
  color: var(--cc-green) !important;
}

.cc-navbar .navbar-nav .nav-link.active {
  color: var(--cc-green) !important;
}

/* Dropdown menus */
.cc-navbar .dropdown-menu {
  background-color: var(--cc-surface);
  border-color: var(--cc-border-light);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.cc-navbar .dropdown-item {
  color: var(--cc-text);
  font-size: 0.85rem;
  transition: background-color 0.12s ease, color 0.12s ease;
}

.cc-navbar .dropdown-item:hover,
.cc-navbar .dropdown-item.active {
  background-color: var(--cc-green-bg);
  color: var(--cc-green);
}

.cc-navbar .navbar-toggler-icon {
  filter: invert(0.7);
}

/* Mobile separator */
.cc-navbar .border-secondary {
  border-color: var(--cc-border) !important;
  margin: 0.5rem 0;
}

/* =========================================================
   6. Jumbotron / page headers
   ========================================================= */

main {
  padding-top: 3.5rem; /* compensate for fixed navbar */
}

.jumbotron {
  background-color: #050505 !important;
  border-bottom: 1px solid var(--cc-border);
  padding: 2.75rem 0 2.25rem;
  position: relative;
  overflow: hidden;
}

/* Subtle grid pattern — very low opacity, only visible up close */
.jumbotron::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 214, 140, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 214, 140, 0.028) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* Bottom green glow */
.jumbotron::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cc-green), transparent);
  opacity: 0.4;
}

.jumbotron h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  color: #fff;
  letter-spacing: 0.04em;
  text-shadow: 0 0 40px rgba(61, 214, 140, 0.15);
  position: relative;
}

/* =========================================================
   7. Challenge board
   ========================================================= */

/* Category headings */
.category-header h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cc-green);
  border-bottom: 1px solid var(--cc-border);
  padding-bottom: 0.6rem;
  margin-bottom: 0;
}

/* Challenge card */
.challenge-button {
  background-color: var(--cc-surface) !important;
  border: 1px solid var(--cc-border-light) !important;
  color: var(--cc-text) !important;
  border-radius: 6px !important;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease !important;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient shimmer */
.challenge-button::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 55%,
    rgba(61, 214, 140, 0.04) 100%
  );
  pointer-events: none;
}

.challenge-button:hover {
  border-color: var(--cc-green) !important;
  box-shadow: 0 0 14px var(--cc-green-glow), 0 4px 20px rgba(0, 0, 0, 0.4) !important;
  transform: translateY(-2px);
  background-color: var(--cc-surface-2) !important;
}

/* Challenge name */
.challenge-button .challenge-inner p {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  color: #fff;
  margin-bottom: 0.35rem;
}

/* Point value */
.challenge-button .challenge-inner span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--cc-green);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* Solved state */
.challenge-solved {
  background-color: var(--cc-green-bg) !important;
  border-color: var(--cc-green) !important;
}

.challenge-solved .challenge-inner span {
  color: #7ee8b4;
}

.challenge-solved:hover {
  background-color: rgba(61, 214, 140, 0.14) !important;
  box-shadow: 0 0 20px rgba(61, 214, 140, 0.28), 0 4px 20px rgba(0, 0, 0, 0.4) !important;
}

/* Loading spinner */
.fa-spin.spinner {
  color: var(--cc-green);
}

/* =========================================================
   8. Challenge modal
   ========================================================= */

.modal-content {
  background-color: var(--cc-surface) !important;
  border: 1px solid var(--cc-border-light) !important;
  border-radius: 8px !important;
}

.modal-backdrop {
  background-color: #000;
}

.modal-backdrop.show {
  opacity: 0.85;
}

/* Challenge title and value */
.challenge-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.03em;
}

.challenge-value {
  font-family: 'JetBrains Mono', monospace;
  color: var(--cc-green);
  font-size: 1.1rem;
}

/* Tags */
.challenge-tag {
  background-color: rgba(61, 214, 140, 0.12) !important;
  color: var(--cc-green) !important;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  border: 1px solid rgba(61, 214, 140, 0.25);
}

/* Nav tabs in the modal */
.nav-tabs {
  border-bottom-color: var(--cc-border);
}

.nav-tabs .nav-link {
  color: var(--cc-text-muted);
  border: 1px solid transparent;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.12s ease;
  padding: 0.5rem 0.9rem;
}

.nav-tabs .nav-link:hover {
  color: var(--cc-text);
  border-color: var(--cc-border);
}

.nav-tabs .nav-link.active,
.nav-tabs .nav-link[aria-selected="true"] {
  background-color: var(--cc-surface-2) !important;
  border-color: var(--cc-border) var(--cc-border) var(--cc-surface) !important;
  color: var(--cc-green) !important;
}

/* Flag input */
#challenge-input {
  background-color: var(--cc-surface-2) !important;
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text) !important;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
}

#challenge-input:focus {
  border-color: var(--cc-green) !important;
  box-shadow: 0 0 0 0.2rem var(--cc-green-glow) !important;
  background-color: #141414 !important;
}

#challenge-input::placeholder {
  color: var(--cc-text-muted) !important;
  font-style: italic;
}

/* Submit button */
.challenge-submit {
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text) !important;
  background-color: var(--cc-surface-2) !important;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: all 0.15s ease;
}

.challenge-submit:hover {
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
  background-color: var(--cc-green-bg) !important;
  box-shadow: 0 0 10px var(--cc-green-glow);
}

/* Alert responses inside the modal */
.alert-success {
  background-color: rgba(61, 214, 140, 0.1) !important;
  border-color: rgba(61, 214, 140, 0.35) !important;
  color: #7de8af !important;
}

.alert-danger {
  background-color: rgba(255, 71, 87, 0.1) !important;
  border-color: rgba(255, 71, 87, 0.35) !important;
  color: #ff8090 !important;
}

.alert-warning {
  background-color: rgba(255, 165, 2, 0.1) !important;
  border-color: rgba(255, 165, 2, 0.35) !important;
  color: #ffb84d !important;
}

.alert-info {
  background-color: rgba(66, 153, 225, 0.1) !important;
  border-color: rgba(66, 153, 225, 0.35) !important;
  color: #74b4ed !important;
}

/* Hint details */
.challenge-hints details summary {
  color: var(--cc-green);
  cursor: pointer;
  font-size: 0.88rem;
}

/* =========================================================
   9. Buttons
   ========================================================= */

.btn-primary {
  background-color: var(--cc-green) !important;
  border-color: var(--cc-green) !important;
  color: #000 !important;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--cc-green-dim) !important;
  border-color: var(--cc-green-dim) !important;
  box-shadow: 0 0 14px var(--cc-green-glow);
}

.btn-outline-primary {
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
}

.btn-outline-primary:hover {
  background-color: var(--cc-green-bg) !important;
  box-shadow: 0 0 10px var(--cc-green-glow);
}

.btn-secondary {
  background-color: var(--cc-surface-2) !important;
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text) !important;
}

.btn-secondary:hover {
  background-color: #202020 !important;
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
}

.btn-outline-secondary {
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text-muted) !important;
}

.btn-outline-secondary:hover {
  background-color: var(--cc-surface-2) !important;
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
}

.btn-info {
  background-color: var(--cc-blue) !important;
  border-color: var(--cc-blue) !important;
  color: #fff !important;
}

/* =========================================================
   10. Forms
   ========================================================= */

.form-control,
.form-select {
  background-color: var(--cc-surface) !important;
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text) !important;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.form-select:focus {
  background-color: #141414 !important;
  border-color: var(--cc-green) !important;
  box-shadow: 0 0 0 0.2rem var(--cc-green-glow) !important;
  color: var(--cc-text) !important;
}

.form-control::placeholder {
  color: var(--cc-text-muted) !important;
}

.form-label,
label {
  color: var(--cc-text);
  font-weight: 500;
  font-size: 0.88rem;
}

.form-text {
  color: var(--cc-text-muted) !important;
}

.form-select {
  /* Dark arrow for the select dropdown */
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3e%3cpath fill='%23606060' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") !important;
}

/* Input groups */
.input-group-text {
  background-color: var(--cc-surface-2) !important;
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text-muted) !important;
}

/* =========================================================
   11. Tables
   ========================================================= */

.table {
  --bs-table-bg:          var(--cc-surface);
  --bs-table-striped-bg:  var(--cc-surface-2);
  --bs-table-hover-bg:    rgba(61, 214, 140, 0.04);
  --bs-table-color:       var(--cc-text);
  --bs-table-border-color: var(--cc-border);
  border-color: var(--cc-border);
}

.table thead th {
  background-color: #080808;
  color: var(--cc-text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--cc-border-light);
  padding: 0.9rem 1rem;
}

.table tbody td {
  border-color: var(--cc-border);
  vertical-align: middle;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background-color: var(--cc-surface-2);
}

/* Scoreboard — top-3 gold/silver/bronze accent */
#scoreboard table tbody tr:first-child td:first-child,
#scoreboard table tbody tr:first-child th:first-child {
  color: #ffd700;
  font-weight: 700;
}

#scoreboard table tbody tr:nth-child(2) td:first-child,
#scoreboard table tbody tr:nth-child(2) th:first-child {
  color: #c0c0c0;
  font-weight: 700;
}

#scoreboard table tbody tr:nth-child(3) td:first-child,
#scoreboard table tbody tr:nth-child(3) th:first-child {
  color: #cd7f32;
  font-weight: 700;
}

/* =========================================================
   12. Cards
   ========================================================= */

.card {
  background-color: var(--cc-surface) !important;
  border-color: var(--cc-border-light) !important;
  border-radius: 6px;
}

.card-header {
  background-color: #0d0d0d !important;
  border-bottom-color: var(--cc-border) !important;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.card-footer {
  background-color: #0d0d0d !important;
  border-top-color: var(--cc-border) !important;
}

/* =========================================================
   13. Badges
   ========================================================= */

.badge.bg-info {
  background-color: rgba(66, 153, 225, 0.18) !important;
  color: #74b4ed !important;
  border: 1px solid rgba(66, 153, 225, 0.3);
}

.badge.bg-secondary {
  background-color: var(--cc-surface-2) !important;
  color: var(--cc-text-muted) !important;
}

.badge.bg-success {
  background-color: var(--cc-green-bg) !important;
  color: var(--cc-green) !important;
  border: 1px solid rgba(61, 214, 140, 0.3);
}

.badge.bg-danger {
  background-color: rgba(255, 71, 87, 0.15) !important;
  color: #ff8090 !important;
}

/* =========================================================
   14. Nav pills (scoreboard bracket tabs)
   ========================================================= */

.nav-pills .nav-link {
  color: var(--cc-text-muted);
  background-color: var(--cc-surface);
  border: 1px solid var(--cc-border);
  font-size: 0.82rem;
  transition: all 0.14s ease;
}

.nav-pills .nav-link:hover {
  color: var(--cc-text);
  border-color: var(--cc-border-light);
}

.nav-pills .nav-link.active {
  background-color: var(--cc-green-bg) !important;
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
}

/* =========================================================
   15. Footer
   ========================================================= */

.footer {
  background-color: #050505 !important;
  border-top: 1px solid var(--cc-border);
  margin-bottom: 0;
  padding: 0.4rem 0;
}

.footer a {
  color: var(--cc-text-muted);
  transition: color 0.15s ease;
}

.footer a:hover {
  color: var(--cc-green);
}

/* =========================================================
   16. Snackbar (email verification notice)
   ========================================================= */

#ctfd-snackbar {
  background-color: var(--cc-surface) !important;
  border: 1px solid var(--cc-border-light);
  border-radius: 6px;
  color: var(--cc-text) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* =========================================================
   17. Scoreboard graph
   ========================================================= */

#score-graph {
  background-color: var(--cc-surface);
  border: 1px solid var(--cc-border);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

/* =========================================================
   18. Profile & user pages
   ========================================================= */

.award-icon {
  color: var(--cc-green);
}

/* =========================================================
   19. Login / Register pages
   ========================================================= */

/* Center the form card */
.row > .col-md-8.offset-md-2,
.row > .col-md-6.offset-md-3 {
  border: 1px solid var(--cc-border);
  border-radius: 8px;
  padding: 2rem 2rem 1.5rem;
  background-color: var(--cc-surface);
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}

/* =========================================================
   20. NFC scan result page (from the NFC plugin)
   ========================================================= */

/* Integrate with the green success / amber duplicate / red invalid cards */
.card.shadow-lg.border-0 {
  border: 1px solid var(--cc-border-light) !important;
}

/* =========================================================
   21. Miscellaneous
   ========================================================= */

/* Blockquotes */
blockquote {
  border-left: 3px solid var(--cc-green);
  padding-left: 1rem;
  color: var(--cc-text-muted);
}

/* Horizontal rules */
hr {
  border-color: var(--cc-border);
  opacity: 1;
}

/* Pagination */
.page-link {
  background-color: var(--cc-surface) !important;
  border-color: var(--cc-border) !important;
  color: var(--cc-text) !important;
}

.page-link:hover {
  background-color: var(--cc-surface-2) !important;
  color: var(--cc-green) !important;
}

.page-item.active .page-link {
  background-color: var(--cc-green-bg) !important;
  border-color: var(--cc-green) !important;
  color: var(--cc-green) !important;
}

.page-item.disabled .page-link {
  color: var(--cc-text-muted) !important;
}

/* Search inputs */
.input-group > .form-control {
  border-right: none;
}

.input-group > .btn {
  border-left: none;
}

/* Toast / notification alerts */
.toast {
  background-color: var(--cc-surface) !important;
  border-color: var(--cc-border-light) !important;
  color: var(--cc-text) !important;
}

.toast-header {
  background-color: #0d0d0d !important;
  border-bottom-color: var(--cc-border) !important;
  color: var(--cc-text) !important;
}

/* Close buttons */
.btn-close {
  filter: invert(0.7) sepia(0) saturate(0);
  opacity: 0.6;
}

.btn-close:hover {
  filter: invert(0.9);
  opacity: 1;
}

/* Code blocks / syntax highlight */
.lolight,
pre code {
  background-color: #0d0d0d !important;
  border: 1px solid var(--cc-border) !important;
  border-radius: 4px !important;
  color: var(--cc-text) !important;
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 0.83rem !important;
}

/* Rating stars / thumbs */
.fa-thumbs-up   { color: var(--cc-green); }
.fa-thumbs-down { color: var(--cc-red); }