/* Kaliber visual identity override. Loaded after the legacy base bundle. */
:root {
  --color-bg: #000000;
  --color-surface: #080807;
  --color-surface-2: #10100e;
  --color-surface-red: #6B0C09;
  --color-primary: #AA0B04;
  --color-primary-hover: #7F0804;
  --color-secondary: #CBCBCB;
  --color-text: #E6E2D7;
  --color-text-muted: #B8B3A8;
  --color-accent: #E0CC2B;
  --color-accent-hover: #A7981E;
  --color-ivory: #FFFDEB;
  --color-cream-grid: #E4D8AF;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --shadow-red: 0 0 24px rgba(170, 11, 4, 0.35);
  --shadow-gold: 0 0 18px rgba(224, 204, 43, 0.25);
  --border-silver: rgba(203, 203, 203, 0.16);
}

html,
body {
  min-height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
}

body.caliber-theme {
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(224, 204, 43, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224, 204, 43, 0.045) 1px, transparent 1px),
    linear-gradient(135deg, rgba(107, 12, 9, 0.44) 0%, rgba(0, 0, 0, 0) 36%),
    linear-gradient(180deg, #000000 0%, #080807 100%);
  background-attachment: fixed;
  background-size: 48px 48px, 48px 48px, auto, auto;
  font-family: "Inter", "Lato", "LatoOffline", Arial, sans-serif;
}

.scanline,
main::before {
  display: none !important;
  animation: none !important;
}

main {
  flex: 1 0 auto;
  position: relative;
  margin-bottom: 0;
  padding-top: 5rem;
}

::selection {
  background: rgba(224, 204, 43, 0.32);
  color: var(--color-ivory);
}

.container {
  max-width: 1120px;
}

body.caliber-theme .container {
  font-family: "Inter", "Lato", "LatoOffline", Arial, sans-serif;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover,
a:focus {
  color: var(--color-ivory);
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6,
.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  color: var(--color-ivory);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

p,
li,
label,
.form-text {
  color: var(--color-text);
}

small,
.small,
.text-muted,
.text-secondary {
  color: var(--color-text-muted) !important;
}

hr {
  border-top-color: rgba(203, 203, 203, 0.18);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.caliber-navbar.navbar {
  min-height: 76px;
  padding: 0.7rem 0;
  background: rgba(0, 0, 0, 0.9) !important;
  border-bottom: 1px solid rgba(203, 203, 203, 0.14);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(12px);
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  color: var(--color-ivory) !important;
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.navbar-brand .ctf_logo {
  width: auto;
  max-width: 180px;
  height: 52px;
  object-fit: contain;
}

.brand-emblem {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: var(--color-accent);
  background: rgba(170, 11, 4, 0.18);
  border: 1px solid rgba(224, 204, 43, 0.32);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-red);
}

.brand-text {
  overflow-wrap: anywhere;
}

.navbar-dark .navbar-nav .nav-link {
  color: var(--color-text-muted);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus {
  color: var(--color-accent);
}

.navbar-dark .navbar-toggler {
  border-color: rgba(203, 203, 203, 0.28);
  border-radius: var(--radius-sm);
}

.navbar-dark .navbar-toggler-icon {
  filter: sepia(1) saturate(1.8) hue-rotate(4deg);
}

.badge-notification {
  background: var(--color-primary) !important;
  color: var(--color-ivory);
}

.caliber-theme .bg-light,
.caliber-theme .bg-white {
  color: var(--color-text) !important;
  background:
    linear-gradient(135deg, rgba(170, 11, 4, 0.16), rgba(8, 8, 7, 0.96) 58%),
    var(--color-surface) !important;
}

.caliber-theme .bg-dark {
  background: rgba(0, 0, 0, 0.9) !important;
}

.caliber-theme .text-dark,
.caliber-theme .text-body {
  color: var(--color-text) !important;
}

.jumbotron {
  position: relative;
  overflow: hidden;
  margin-bottom: 2rem;
  padding: 4.25rem 0 3rem;
  color: var(--color-text);
  text-align: left;
  background:
    linear-gradient(rgba(224, 204, 43, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224, 204, 43, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, rgba(107, 12, 9, 0.92) 0%, rgba(8, 8, 7, 0.94) 52%, rgba(0, 0, 0, 1) 100%);
  background-size: 44px 44px, 44px 44px, auto;
  border-bottom: 1px solid rgba(203, 203, 203, 0.16);
  box-shadow: inset 0 -1px 0 rgba(224, 204, 43, 0.14);
}

.jumbotron h1 {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 0;
  font-size: 3rem;
  line-height: 1;
  text-shadow: 0 0 24px rgba(170, 11, 4, 0.42);
}

.jumbotron h1::after {
  content: "";
  width: 96px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  box-shadow: var(--shadow-gold);
}

.card,
.modal-content,
.dropdown-menu,
.list-group-item {
  color: var(--color-text);
  background: rgba(8, 8, 7, 0.94);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.36);
}

.card {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: rgba(170, 11, 4, 0.62);
  box-shadow: var(--shadow-red);
}

.card-title {
  color: var(--color-ivory);
}

.card-header,
.card-footer,
.modal-header,
.modal-footer {
  background: rgba(107, 12, 9, 0.22);
  border-color: rgba(203, 203, 203, 0.14);
}

.modal-content {
  max-width: 1000px;
  padding: 0 !important;
}

#challenge-window.modal {
  z-index: 1060;
}

#challenge-window .modal-dialog,
#challenge-window .modal-content,
#challenge-window .modal-body {
  pointer-events: auto;
}

.modal-body {
  padding: 1.5rem;
}

.close {
  color: var(--color-text);
  opacity: 0.8;
  text-shadow: none;
}

.close:hover,
.close:focus {
  color: var(--color-accent);
  opacity: 1;
}

.form-control,
.custom-select,
.challenge-input {
  min-height: 48px;
  color: var(--color-ivory) !important;
  background-color: rgba(255, 253, 235, 0.06) !important;
  border: 1px solid rgba(203, 203, 203, 0.24);
  border-radius: var(--radius-sm);
  box-shadow: none;
}

.form-control::placeholder,
.challenge-input::placeholder {
  color: rgba(230, 226, 215, 0.56);
}

.form-control:focus,
.custom-select:focus,
.challenge-input:focus {
  color: var(--color-ivory) !important;
  background-color: rgba(255, 253, 235, 0.09) !important;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 0.14rem rgba(224, 204, 43, 0.2);
}

select.form-control option,
select.custom-select option {
  color: var(--color-text);
  background: var(--color-surface);
}

.input-filled-valid {
  border-color: rgba(224, 204, 43, 0.72);
  box-shadow: 0 0 0 0.14rem rgba(224, 204, 43, 0.18);
}

.input-filled-invalid {
  border-color: rgba(170, 11, 4, 0.86);
  box-shadow: 0 0 0 0.14rem rgba(170, 11, 4, 0.2);
}

.btn {
  border-radius: var(--radius-sm) !important;
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover,
.btn:focus {
  transform: translateY(-1px);
}

.btn-primary,
.btn-outlined.btn-theme,
.challenge-submit,
input[type="submit"].btn-primary {
  color: var(--color-ivory) !important;
  background: var(--color-primary) !important;
  border: 1px solid rgba(255, 253, 235, 0.18) !important;
  box-shadow: var(--shadow-red);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-outlined.btn-theme:hover,
.btn-outlined.btn-theme:focus,
.challenge-submit:hover,
.challenge-submit:focus {
  background: var(--color-primary-hover) !important;
  border-color: rgba(224, 204, 43, 0.45) !important;
  color: var(--color-ivory) !important;
}

.btn-secondary,
.btn-outline-secondary {
  color: var(--color-text) !important;
  background: transparent !important;
  border: 1px solid rgba(203, 203, 203, 0.36) !important;
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
  color: var(--color-accent) !important;
  border-color: var(--color-accent) !important;
  background: rgba(224, 204, 43, 0.08) !important;
}

.btn-info,
.badge-info {
  color: #15130a !important;
  background: var(--color-accent) !important;
  border-color: var(--color-accent) !important;
}

.btn-light,
.btn-dark {
  color: var(--color-text) !important;
  background: rgba(8, 8, 7, 0.94) !important;
  border: 1px solid rgba(203, 203, 203, 0.36) !important;
}

.btn-light:hover,
.btn-light:focus,
.btn-dark:hover,
.btn-dark:focus {
  color: var(--color-accent) !important;
  background: rgba(224, 204, 43, 0.08) !important;
  border-color: var(--color-accent) !important;
}

.badge,
.challenge-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  color: var(--color-accent) !important;
  background: rgba(224, 204, 43, 0.12) !important;
  border: 1px solid rgba(224, 204, 43, 0.35);
  border-radius: 999px;
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.badge-primary,
.badge-danger {
  color: var(--color-ivory) !important;
  background: var(--color-primary) !important;
  border-color: rgba(255, 253, 235, 0.18);
}

.table {
  color: var(--color-text);
  overflow: hidden;
  background: rgba(8, 8, 7, 0.9);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-lg);
}

.table th,
.table td {
  vertical-align: middle;
  border-top: 1px solid rgba(203, 203, 203, 0.12);
}

.table thead th,
.table thead td {
  color: var(--color-accent);
  background: rgba(107, 12, 9, 0.28);
  border-bottom: 1px solid rgba(224, 204, 43, 0.22);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(255, 253, 235, 0.035);
}

.table-hover tbody tr:hover,
.table-striped tbody tr:hover {
  color: var(--color-ivory);
  background-color: rgba(170, 11, 4, 0.22);
}

.alert {
  color: var(--color-text);
  background: rgba(8, 8, 7, 0.94);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-sm) !important;
}

.alert-danger {
  color: var(--color-ivory);
  background: rgba(170, 11, 4, 0.24);
  border-color: rgba(170, 11, 4, 0.64);
}

.alert-success,
.alert-info {
  color: var(--color-ivory);
  background: rgba(224, 204, 43, 0.14);
  border-color: rgba(224, 204, 43, 0.48);
}

.alert-warning {
  color: var(--color-ivory);
  background: rgba(167, 152, 30, 0.2);
  border-color: rgba(224, 204, 43, 0.44);
}

blockquote {
  border-left-color: var(--color-primary);
}

pre,
code {
  color: var(--color-ivory);
  background: rgba(255, 253, 235, 0.08);
  border-radius: var(--radius-sm);
}

pre {
  padding: 1rem;
  border: 1px solid rgba(203, 203, 203, 0.14);
}

.hljs {
  color: var(--color-ivory);
  background: rgba(8, 8, 7, 0.96);
}

.nav-pills {
  gap: 0.45rem;
}

.nav-pills .nav-link {
  color: var(--color-text-muted);
  background: rgba(8, 8, 7, 0.76);
  border: 1px solid rgba(203, 203, 203, 0.16);
  border-radius: var(--radius-sm);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.nav-pills .nav-link:hover,
.nav-pills .nav-link:focus {
  color: var(--color-accent);
  border-color: rgba(224, 204, 43, 0.4);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
  color: var(--color-ivory);
  background: var(--color-primary);
  border-color: rgba(255, 253, 235, 0.18);
  box-shadow: var(--shadow-red);
}

.empty-state {
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 2rem;
  color: var(--color-text-muted);
  background:
    linear-gradient(rgba(224, 204, 43, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(224, 204, 43, 0.04) 1px, transparent 1px),
    rgba(8, 8, 7, 0.86);
  background-size: 42px 42px, 42px 42px, auto;
  border: 1px solid rgba(203, 203, 203, 0.14);
  border-radius: var(--radius-lg);
}

.empty-state i {
  margin-bottom: 0.85rem;
  color: var(--color-accent);
  font-size: 2rem;
}

.empty-state h2,
.empty-state h3 {
  margin-bottom: 0;
}

.notifications-list {
  display: grid;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.notification-card {
  position: relative;
  overflow: hidden;
  margin-bottom: 0 !important;
  background:
    linear-gradient(135deg, rgba(170, 11, 4, 0.18), rgba(8, 8, 7, 0.96) 60%),
    var(--color-surface) !important;
}

.notification-card::before {
  content: "";
  position: absolute;
  top: 1rem;
  bottom: 1rem;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  box-shadow: var(--shadow-red);
}

.notification-card .card-body {
  padding: 1.35rem 1.5rem 1.35rem 1.75rem;
}

.notification-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.85rem;
  font-size: 1.45rem;
  line-height: 1.15;
}

.notification-title i {
  color: var(--color-accent);
  font-size: 1rem;
}

.notification-body {
  padding-left: 1rem;
  color: var(--color-text);
  border-left: 1px solid rgba(203, 203, 203, 0.22);
}

.notification-body p {
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.notification-meta {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-muted);
  font-size: 0.86rem;
}

.award-icon,
.btn-fa,
.fa-spin.spinner {
  color: var(--color-accent);
}

#challenges-board {
  padding-bottom: 3rem;
}

.category-header {
  padding-left: 0;
  padding-right: 0;
}

.category-header h3 {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0;
  color: var(--color-ivory);
  font-size: 1.45rem;
}

.category-header h3::before {
  content: "" !important;
  display: inline-block;
  width: 8px !important;
  height: 26px !important;
  margin: 0 !important;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent)) !important;
  border-radius: 999px;
  box-shadow: var(--shadow-red);
}

.category-challenges,
.challenges-row {
  padding-left: 0;
  padding-right: 0;
}

.category-challenges .col-md-3 {
  padding-right: 0.5rem;
  padding-left: 0.5rem;
}

.challenge-button {
  position: relative;
  display: flex !important;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  min-height: 116px;
  padding: 1rem !important;
  overflow: hidden;
  color: var(--color-text) !important;
  white-space: normal !important;
  text-align: left;
  text-overflow: clip !important;
  background:
    linear-gradient(135deg, rgba(170, 11, 4, 0.2), rgba(8, 8, 7, 0.94) 56%),
    var(--color-surface) !important;
  border: 1px solid rgba(203, 203, 203, 0.18) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.36) !important;
}

.challenge-button::after {
  content: "";
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  width: 34px;
  height: 34px;
  border-right: 1px solid rgba(224, 204, 43, 0.35);
  border-bottom: 1px solid rgba(224, 204, 43, 0.35);
}

.challenge-button p {
  position: relative;
  z-index: 1;
  margin-bottom: 0.85rem;
  color: var(--color-ivory);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.15;
  overflow-wrap: anywhere;
  white-space: normal;
}

.challenge-button span {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  color: var(--color-accent);
  font-weight: 700;
}

.challenge-button span::before {
  content: "" !important;
  display: inline-block;
  width: 9px !important;
  height: 9px !important;
  margin: 0 0.45rem 0 0 !important;
  background: var(--color-accent) !important;
  border-radius: 999px;
  box-shadow: var(--shadow-gold);
}

.challenge-button:hover,
.challenge-button:focus {
  color: var(--color-ivory) !important;
  background:
    linear-gradient(135deg, rgba(170, 11, 4, 0.42), rgba(8, 8, 7, 0.98) 58%),
    var(--color-surface) !important;
  border-color: rgba(170, 11, 4, 0.72) !important;
  box-shadow: var(--shadow-red) !important;
  transform: translateY(-2px);
}

.solved-challenge {
  color: var(--color-ivory) !important;
  background:
    linear-gradient(135deg, rgba(224, 204, 43, 0.24), rgba(8, 8, 7, 0.96) 60%),
    var(--color-surface) !important;
  border-color: rgba(224, 204, 43, 0.62) !important;
  opacity: 1 !important;
}

.corner-button-check {
  position: absolute;
  top: 0.8rem;
  right: 0.9rem;
  z-index: 2;
  margin: 0 !important;
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(224, 204, 43, 0.36);
}

.challenge-name {
  color: var(--color-ivory) !important;
  font-size: 1.9rem !important;
  text-shadow: none !important;
}

.challenge-value {
  color: var(--color-accent);
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
}

.challenge-value::before {
  content: "" !important;
  display: inline-block;
  width: 12px !important;
  height: 12px !important;
  margin: 0 0.55rem 0.1rem 0 !important;
  background: var(--color-accent) !important;
  border-radius: 999px;
  box-shadow: var(--shadow-gold);
}

.challenge-tags {
  margin: 1rem 0 1.25rem;
}

.challenge-desc,
.chal-desc {
  display: block;
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.7;
}

.challenge-desc img,
.chal-desc img {
  max-width: 100%;
  height: auto;
  border: 1px solid rgba(203, 203, 203, 0.16);
  border-radius: var(--radius-md);
}

.challenge-connection-info {
  display: block;
  margin: 1.25rem 0;
}

.challenge-files,
.challenge-hints {
  row-gap: 0.75rem;
}

.challenge-submit {
  width: 100%;
  min-height: 52px;
}

.key-submit .btn {
  height: 52px;
}

.nav-tabs {
  border-bottom: 1px solid rgba(203, 203, 203, 0.16);
}

.nav-tabs .nav-link {
  color: var(--color-text-muted);
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

.nav-tabs .nav-link:hover,
.nav-tabs .nav-link:focus,
.nav-tabs .nav-link.active {
  color: var(--color-accent);
  background: transparent;
  border-color: var(--color-accent);
}

#score-graph,
#solves-graph,
#keys-pie-graph,
#categories-pie-graph,
.challenge-charts-box {
  min-height: 360px;
  padding: 1rem;
  background: rgba(8, 8, 7, 0.9);
  border: 1px solid var(--border-silver);
  border-radius: var(--radius-lg);
}

#score-graph > div > canvas,
.challenge-charts {
  background: var(--color-ivory) !important;
  border-radius: var(--radius-sm);
}

.pagination .page-link {
  color: var(--color-text);
  background: rgba(8, 8, 7, 0.94);
  border-color: rgba(203, 203, 203, 0.18);
}

.pagination .page-link:hover,
.pagination .page-link:focus,
.page-item.active .page-link {
  color: var(--color-ivory);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.footer {
  position: relative !important;
  bottom: auto !important;
  z-index: 1 !important;
  flex-shrink: 0;
  width: 100%;
  height: auto !important;
  min-height: 76px;
  margin-top: 4rem;
  padding: 1.2rem 0;
  line-height: 1.5 !important;
  background: rgba(0, 0, 0, 0.94);
  border-top: 1px solid rgba(203, 203, 203, 0.14);
}

.footer .container {
  color: var(--color-text-muted);
  font-family: "Inter", "Lato", "LatoOffline", Arial, sans-serif !important;
  font-size: 0.88rem !important;
}

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

.pbadge {
  font-family: "Rajdhani", "Raleway", "RalewayOffline", sans-serif !important;
}

.pbadge-primary {
  color: var(--color-accent) !important;
}

.pbadge-secondary {
  color: var(--color-primary) !important;
}

@media (max-width: 767.98px) {
  main {
    padding-top: 4.4rem;
  }

  .caliber-navbar.navbar {
    min-height: 68px;
  }

  .navbar-brand .ctf_logo {
    height: 44px;
    max-width: 132px;
  }

  .brand-emblem {
    width: 38px;
    height: 38px;
  }

  .brand-text {
    font-size: 1rem;
  }

  .caliber-navbar .navbar-collapse {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(8, 8, 7, 0.98);
    border: 1px solid rgba(203, 203, 203, 0.14);
    border-radius: var(--radius-md);
  }

  .navbar-dark .navbar-nav .nav-link {
    padding: 0.65rem 0.25rem;
  }

  .jumbotron {
    padding: 3rem 0 2.3rem;
  }

  .jumbotron h1 {
    font-size: 2.25rem;
  }

  .category-challenges .col-md-3 {
    padding-right: 0;
    padding-left: 0;
  }

  .challenge-button {
    min-height: 104px;
  }

  .submit-row .form-group {
    margin-bottom: 0.75rem;
  }
}

/* DESIGN.md v2 alignment: darker, sharper, red-led, with coin.png retained for points. */
:root {
  --color-bg: #050505;
  --color-bg-soft: #0D0D0F;
  --color-bg-raised: #151518;
  --color-surface: #E6E2D7;
  --color-primary: #B80D07;
  --color-primary-dark: #6B0C09;
  --color-primary-bright: #E02016;
  --color-text: #F4F1E6;
  --color-text-muted: #B8B8B8;
  --color-text-dim: #777777;
  --color-border: #666666;
  --color-border-soft: #2A2A2E;
  --color-accent: #E0CC2B;
  --color-accent-soft: #F2E7A8;
  --color-success: #19C37D;
  --color-success-dark: #0F8F5F;
  --color-danger: #FF3B30;
  --color-warning: #D9B520;
  --color-info: #38BDF8;
  --font-heading: "Orbitron", "Rajdhani", "Inter", sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", Consolas, monospace;
  --shadow-red: 0 0 24px rgba(184, 13, 7, 0.35);
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
  --shadow-gold: 0 0 14px rgba(224, 204, 43, 0.16);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --border-silver: rgba(102, 102, 102, 0.32);
}

html,
body {
  background: var(--color-bg);
  color: var(--color-text);
}

body.caliber-theme {
  background:
    radial-gradient(circle at top, rgba(184, 13, 7, 0.16), transparent 34%),
    linear-gradient(180deg, #050505 0%, #0D0D0F 48%, #050505 100%);
  background-attachment: fixed;
  font-family: var(--font-body);
}

body.caliber-theme::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.72;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent);
}

body.caliber-theme .container {
  max-width: 1180px;
  font-family: var(--font-body);
}

a {
  color: var(--color-primary-bright);
}

a:hover,
a:focus {
  color: #fff;
  text-shadow: 0 0 10px rgba(224, 32, 22, 0.45);
}

h1,
h2,
h3,
h4,
h5,
h6,
.navbar-brand,
.card-title {
  color: var(--color-text);
  font-family: var(--font-heading);
  letter-spacing: 0.04em !important;
}

p,
li,
label,
.form-text {
  color: var(--color-text);
}

small,
.small,
.text-muted,
.text-secondary {
  color: var(--color-text-muted) !important;
}

code,
pre,
kbd,
samp,
.challenge-connection-info,
.challenge-input {
  font-family: var(--font-mono);
}

:focus-visible {
  outline-color: var(--color-primary-bright);
}

.caliber-navbar.navbar {
  min-height: 64px;
  padding: 0.55rem 0;
  background: rgba(5, 5, 5, 0.92) !important;
  border-bottom: 1px solid rgba(184, 13, 7, 0.45);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.55);
}

.navbar-brand .ctf_logo {
  max-height: 40px;
  height: 40px;
  max-width: 168px;
}

.brand-emblem {
  color: var(--color-text);
  background: rgba(184, 13, 7, 0.18);
  border-color: rgba(184, 13, 7, 0.48);
  box-shadow: var(--shadow-red);
}

.navbar-dark .navbar-nav .nav-link {
  color: var(--color-text-muted);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus,
.navbar-dark .navbar-nav .nav-link.active {
  color: var(--color-text);
  text-shadow: 0 0 12px rgba(224, 32, 22, 0.45);
}

.jumbotron {
  background:
    radial-gradient(circle at center, rgba(184, 13, 7, 0.2), transparent 38%),
    linear-gradient(180deg, #0D0D0F 0%, #050505 100%);
  border-bottom: 1px solid rgba(184, 13, 7, 0.35);
  box-shadow: none;
}

.jumbotron h1::after,
.category-header h3::before,
.notification-card::before {
  background: linear-gradient(180deg, var(--color-primary-bright), var(--color-primary-dark)) !important;
  box-shadow: var(--shadow-red);
}

.card,
.modal-content,
.dropdown-menu,
.list-group-item,
.caliber-theme .bg-light,
.caliber-theme .bg-white {
  color: var(--color-text);
  background:
    linear-gradient(180deg, rgba(21, 21, 24, 0.98) 0%, rgba(13, 13, 15, 0.98) 100%) !important;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft);
}

.card:hover {
  border-color: rgba(184, 13, 7, 0.5);
  box-shadow: 0 0 26px rgba(184, 13, 7, 0.24);
}

.modal-content {
  background: #0D0D0F !important;
  border-color: rgba(184, 13, 7, 0.45);
  box-shadow: 0 0 40px rgba(184, 13, 7, 0.18);
}

.modal-header,
.modal-footer,
.card-header,
.card-footer {
  background: rgba(13, 13, 15, 0.96);
  border-color: var(--color-border-soft);
}

.form-control,
.custom-select,
.challenge-input,
input,
textarea,
select {
  color: var(--color-text) !important;
  background: #08080A !important;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
}

.form-control::placeholder,
.challenge-input::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--color-text-dim);
}

.form-control:focus,
.custom-select:focus,
.challenge-input:focus,
input:focus,
textarea:focus,
select:focus {
  color: var(--color-text) !important;
  background: #0D0D0F !important;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(184, 13, 7, 0.18);
}

.btn {
  border-radius: var(--radius-md) !important;
}

.btn-primary,
.btn-outlined.btn-theme,
.challenge-submit,
input[type="submit"].btn-primary,
.btn-success {
  color: #fff !important;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  box-shadow: var(--shadow-red);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-outlined.btn-theme:hover,
.btn-outlined.btn-theme:focus,
.challenge-submit:hover,
.challenge-submit:focus,
.btn-success:hover,
.btn-success:focus {
  color: #fff !important;
  background: linear-gradient(135deg, var(--color-primary-bright), var(--color-primary)) !important;
  border-color: rgba(255, 255, 255, 0.18) !important;
}

.btn-secondary,
.btn-outline-secondary,
.btn-light,
.btn-dark {
  color: var(--color-text) !important;
  background: var(--color-bg-raised) !important;
  border: 1px solid var(--color-border-soft) !important;
  box-shadow: none;
}

.btn-secondary:hover,
.btn-secondary:focus,
.btn-outline-secondary:hover,
.btn-outline-secondary:focus,
.btn-light:hover,
.btn-light:focus,
.btn-dark:hover,
.btn-dark:focus {
  color: #fff !important;
  background: #18181c !important;
  border-color: var(--color-primary) !important;
}

.btn-info,
.badge-info,
.challenge-tag {
  color: var(--color-primary-bright) !important;
  background: var(--color-bg-raised) !important;
  border-color: rgba(184, 13, 7, 0.55) !important;
}

.badge,
.pbadge {
  color: var(--color-text-muted) !important;
  background: var(--color-bg-raised) !important;
  border: 1px solid var(--color-border-soft);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
}

.badge-primary,
.badge-danger,
.pbadge-primary,
.pbadge-secondary {
  color: var(--color-primary-bright) !important;
  border-color: rgba(184, 13, 7, 0.55);
}

.badge-notification {
  color: #fff !important;
  background: var(--color-primary-bright) !important;
  border-color: transparent;
}

.alert-success {
  color: #DFFFEF;
  background: rgba(25, 195, 125, 0.12);
  border-color: var(--color-success);
}

.alert-danger {
  color: #FFE5E3;
  background: rgba(255, 59, 48, 0.12);
  border-color: var(--color-danger);
}

.alert-warning {
  color: #FFF4C2;
  background: rgba(217, 181, 32, 0.1);
  border-color: rgba(217, 181, 32, 0.55);
}

.alert-info {
  color: #E7F7FF;
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.45);
}

.table {
  background: rgba(13, 13, 15, 0.92);
  border-color: var(--color-border-soft);
}

.table thead th,
.table thead td {
  color: #fff;
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.table tbody tr {
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--color-border-soft);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(255, 255, 255, 0.035);
}

.table-hover tbody tr:hover,
.table-striped tbody tr:hover {
  background-color: rgba(184, 13, 7, 0.1);
}

.nav-pills .nav-link,
.nav-tabs .nav-link {
  color: var(--color-text-muted);
  border-color: var(--color-border-soft);
}

.nav-pills .nav-link:hover,
.nav-pills .nav-link:focus,
.nav-tabs .nav-link:hover,
.nav-tabs .nav-link:focus {
  color: #fff;
  border-color: var(--color-primary);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link,
.nav-tabs .nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-color: var(--color-primary);
  box-shadow: var(--shadow-red);
}

.empty-state,
.notification-card {
  background:
    linear-gradient(180deg, rgba(21, 21, 24, 0.96), rgba(13, 13, 15, 0.96)) !important;
  border-color: var(--color-border-soft);
}

.empty-state i,
.notification-title i,
.award-icon,
.btn-fa,
.fa-spin.spinner {
  color: var(--color-primary-bright);
}

.challenge-button {
  color: var(--color-text) !important;
  background: linear-gradient(180deg, #151518 0%, #0D0D0F 100%) !important;
  border: 1px solid var(--color-border-soft) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft) !important;
}

.challenge-button:hover,
.challenge-button:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 26px rgba(184, 13, 7, 0.28) !important;
}

.challenge-button span,
.challenge-value {
  color: var(--color-text);
}

.challenge-button span::before,
.challenge-value::before {
  content: "" !important;
  display: inline-block;
  flex: 0 0 auto;
  width: 18px !important;
  height: 18px !important;
  margin: 0 0.45rem -0.2rem 0 !important;
  background: url("../img/coin.png") center / contain no-repeat !important;
  border-radius: 0;
  box-shadow: none;
}

.challenge-value::before {
  width: 24px !important;
  height: 24px !important;
  margin-bottom: -0.35rem !important;
}

.solved-challenge {
  color: #EFFFF7 !important;
  background:
    linear-gradient(180deg, rgba(25, 195, 125, 0.18), rgba(15, 143, 95, 0.12)),
    #0D0D0F !important;
  border-color: var(--color-success) !important;
  box-shadow: 0 0 24px rgba(25, 195, 125, 0.22) !important;
}

.solved-challenge::after {
  content: "SOLVED";
  position: absolute;
  right: 0.9rem;
  bottom: 0.8rem;
  width: auto;
  height: auto;
  color: var(--color-success);
  border: 0;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.corner-button-check {
  color: var(--color-success);
  text-shadow: 0 0 12px rgba(25, 195, 125, 0.36);
}

.challenge-button.locked,
.challenge-card.locked {
  opacity: 0.45;
  filter: grayscale(0.8);
  border-style: dashed !important;
}

.challenge-desc,
.chal-desc {
  color: var(--color-text);
}

#score-graph,
#solves-graph,
#keys-pie-graph,
#categories-pie-graph,
.challenge-charts-box {
  background: rgba(13, 13, 15, 0.92);
  border-color: var(--color-border-soft);
  box-shadow: var(--shadow-soft);
}

#score-graph > div > canvas,
.challenge-charts {
  background: #0D0D0F !important;
}

.footer {
  background: rgba(5, 5, 5, 0.96);
  border-top: 1px solid var(--color-border-soft);
}

@media (max-width: 767.98px) {
  .caliber-navbar.navbar {
    min-height: 64px;
  }

  .navbar-brand .ctf_logo {
    height: 40px;
    max-width: 132px;
  }
}

/* Final Kaliber pass: keep legacy pixel headings from leaking into untouched pages. */
body.caliber-theme h1,
body.caliber-theme h2,
body.caliber-theme h3,
body.caliber-theme h4,
body.caliber-theme h5,
body.caliber-theme h6,
body.caliber-theme .h1,
body.caliber-theme .h2,
body.caliber-theme .h3,
body.caliber-theme .h4,
body.caliber-theme .h5,
body.caliber-theme .h6,
body.caliber-theme .navbar-brand,
body.caliber-theme .nav-link,
body.caliber-theme .dropdown-item,
body.caliber-theme .btn,
body.caliber-theme .card-title,
body.caliber-theme .modal-title,
body.caliber-theme .challenge-name,
body.caliber-theme .challenge-value,
body.caliber-theme .pbadge {
  font-family: var(--font-heading) !important;
  letter-spacing: 0 !important;
  text-shadow: none !important;
}

body.caliber-theme .empty-state {
  display: flex !important;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 220px;
  padding: 2.2rem 1.4rem;
  background:
    linear-gradient(180deg, rgba(21, 21, 24, 0.96), rgba(13, 13, 15, 0.96)),
    #0D0D0F !important;
  border: 1px solid var(--color-border-soft) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-soft);
}

body.caliber-theme .empty-state i {
  margin: 0;
  color: var(--color-primary-bright) !important;
  font-size: 2rem;
  text-shadow: none !important;
}

body.caliber-theme .empty-state h2,
body.caliber-theme .empty-state h3 {
  max-width: 720px;
  margin: 0;
  color: var(--color-text) !important;
  font-family: var(--font-heading) !important;
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0 !important;
  text-align: center;
  text-shadow: none !important;
  text-transform: uppercase;
}

body.caliber-theme .footer .container,
body.caliber-theme .footer small {
  font-family: var(--font-body) !important;
  letter-spacing: 0 !important;
  text-shadow: none !important;
}

/* Kaliber v3: aggressive tactical interface layer. */
:root {
  --kaliber-cut: 18px;
  --kaliber-cut-sm: 10px;
  --kaliber-hairline: rgba(244, 241, 230, 0.08);
  --kaliber-redline: rgba(224, 32, 22, 0.56);
  --kaliber-panel:
    linear-gradient(180deg, rgba(21, 21, 24, 0.96), rgba(7, 7, 8, 0.98));
}

html {
  scrollbar-color: var(--color-primary-dark) #050505;
}

body.caliber-theme {
  min-height: 100vh;
  background:
    linear-gradient(112deg, rgba(107, 12, 9, 0.28) 0, transparent 28%),
    linear-gradient(248deg, rgba(184, 13, 7, 0.12) 0, transparent 26%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.018) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.014) 0 1px, transparent 1px 64px),
    linear-gradient(180deg, #050505 0%, #0D0D0F 48%, #050505 100%) !important;
}

body.caliber-theme::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(135deg, transparent 0 47%, rgba(224, 32, 22, 0.12) 47% 47.3%, transparent 47.3% 100%),
    linear-gradient(45deg, transparent 0 66%, rgba(224, 32, 22, 0.07) 66% 66.25%, transparent 66.25% 100%),
    repeating-linear-gradient(135deg, transparent 0 18px, rgba(244, 241, 230, 0.018) 18px 19px, transparent 19px 46px);
  opacity: 0.88;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.68) 58%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.68) 58%, transparent 100%);
}

body.caliber-theme::after {
  content: "";
  position: fixed;
  right: 5vw;
  bottom: 6vh;
  z-index: 0;
  width: 420px;
  height: 420px;
  pointer-events: none;
  background: url("../img/logo.png") center / contain no-repeat;
  opacity: 0.035;
  filter: grayscale(1) contrast(1.25);
}

body.caliber-theme main,
body.caliber-theme .caliber-navbar,
body.caliber-theme .footer {
  position: relative;
  z-index: 1;
}

body.caliber-theme main {
  z-index: auto !important;
}

body.caliber-theme main {
  padding-top: 5.4rem;
}

body.caliber-theme main > .container {
  position: relative;
}

body.caliber-theme main > .container::before {
  content: "";
  position: absolute;
  top: -1.25rem;
  left: 15px;
  width: 92px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary-bright), transparent);
  box-shadow: 0 0 18px rgba(224, 32, 22, 0.32);
}

body.caliber-theme .caliber-navbar.navbar {
  min-height: 76px;
  padding: 0.78rem 0;
  background:
    linear-gradient(90deg, rgba(184, 13, 7, 0.24), transparent 34%),
    rgba(5, 5, 5, 0.94) !important;
  border-bottom: 1px solid rgba(224, 32, 22, 0.48);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.38), inset 0 -1px 0 rgba(244, 241, 230, 0.06);
  backdrop-filter: blur(16px);
}

body.caliber-theme .caliber-navbar.navbar::before {
  content: "";
  position: absolute;
  inset: auto 0 -1px 0;
  height: 1px;
  background:
    linear-gradient(90deg, transparent, var(--color-primary-bright), transparent),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(224, 32, 22, 0.9) 18px 24px, transparent 24px 48px);
  opacity: 0.55;
}

body.caliber-theme .navbar-brand {
  min-height: 44px;
  padding: 0.2rem 1rem 0.2rem 0;
  border-right: 1px solid rgba(244, 241, 230, 0.12);
}

body.caliber-theme .navbar-brand::after {
  content: "";
  display: inline-block;
  width: 34px;
  height: 2px;
  margin-left: 0.85rem;
  vertical-align: middle;
  background: var(--color-primary-bright);
  box-shadow: 0 0 18px rgba(224, 32, 22, 0.44);
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link {
  position: relative;
  min-height: 38px;
  padding: 0.62rem 0.78rem !important;
  color: var(--color-text-muted) !important;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: var(--color-primary-bright);
  opacity: 0;
  transition: opacity 0.18s ease;
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link:hover,
body.caliber-theme .navbar-dark .navbar-nav .nav-link:focus,
body.caliber-theme .navbar-dark .navbar-nav .nav-link.active {
  color: #fff !important;
  background: rgba(184, 13, 7, 0.12);
  border-color: rgba(224, 32, 22, 0.28);
  box-shadow: inset 0 0 0 1px rgba(244, 241, 230, 0.04), 0 0 22px rgba(184, 13, 7, 0.14);
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link:hover::before,
body.caliber-theme .navbar-dark .navbar-nav .nav-link:focus::before,
body.caliber-theme .navbar-dark .navbar-nav .nav-link.active::before {
  opacity: 1;
}

body.caliber-theme .badge-notification {
  min-width: 1.15rem;
  min-height: 1.15rem;
  background: var(--color-primary-bright);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 16px rgba(224, 32, 22, 0.42);
}

body.caliber-theme .jumbotron {
  position: relative;
  overflow: hidden;
  margin: 0 0 2rem;
  padding: 3.75rem 0 2.45rem;
  text-align: left;
  background:
    linear-gradient(90deg, rgba(107, 12, 9, 0.62), rgba(13, 13, 15, 0.38) 58%, transparent),
    repeating-linear-gradient(135deg, rgba(224, 32, 22, 0.09) 0 1px, transparent 1px 14px),
    linear-gradient(180deg, rgba(21, 21, 24, 0.92), rgba(5, 5, 5, 0.82)) !important;
  border-top: 1px solid rgba(224, 32, 22, 0.22);
  border-bottom: 1px solid rgba(224, 32, 22, 0.32);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

body.caliber-theme .jumbotron::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 7px;
  background: linear-gradient(180deg, var(--color-primary-bright), var(--color-primary-dark));
  box-shadow: 0 0 28px rgba(224, 32, 22, 0.5);
}

body.caliber-theme .jumbotron::after {
  content: "";
  position: absolute;
  right: 8vw;
  top: 50%;
  width: 220px;
  height: 220px;
  background:
    linear-gradient(90deg, transparent 49%, rgba(224, 32, 22, 0.18) 49% 51%, transparent 51%),
    linear-gradient(0deg, transparent 49%, rgba(224, 32, 22, 0.14) 49% 51%, transparent 51%),
    url("../img/logo.png") center / 140px auto no-repeat;
  border: 1px solid rgba(224, 32, 22, 0.16);
  opacity: 0.28;
  transform: translateY(-50%);
  pointer-events: none;
}

body.caliber-theme .jumbotron .container {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

body.caliber-theme .jumbotron h1 {
  position: relative;
  max-width: 760px;
  margin: 0;
  padding-left: 1.15rem;
  color: var(--color-text) !important;
  font-size: 2.55rem;
  line-height: 1.04;
  word-break: break-word;
}

body.caliber-theme .jumbotron h1::before {
  content: "";
  display: none;
  margin-bottom: 0.55rem;
  color: var(--color-primary-bright);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0 !important;
  text-transform: uppercase;
}

body.caliber-theme .jumbotron h1::after {
  left: 0;
  bottom: -0.72rem;
  width: 155px;
  height: 2px;
  background:
    linear-gradient(90deg, var(--color-primary-bright), rgba(224, 32, 22, 0.12), transparent) !important;
  box-shadow: 0 0 22px rgba(224, 32, 22, 0.36);
}

body.caliber-theme .card,
body.caliber-theme .modal-content,
body.caliber-theme .empty-state,
body.caliber-theme #score-graph,
body.caliber-theme #solves-graph,
body.caliber-theme #keys-pie-graph,
body.caliber-theme #categories-pie-graph,
body.caliber-theme .challenge-charts-box {
  position: relative;
  overflow: hidden;
  background: var(--kaliber-panel) !important;
  border: 1px solid rgba(102, 102, 102, 0.34) !important;
  border-radius: 0 !important;
  clip-path: polygon(0 0, calc(100% - var(--kaliber-cut)) 0, 100% var(--kaliber-cut), 100% 100%, var(--kaliber-cut) 100%, 0 calc(100% - var(--kaliber-cut)));
  box-shadow: var(--shadow-soft), inset 0 0 0 1px rgba(244, 241, 230, 0.035) !important;
}

body.caliber-theme .card::after,
body.caliber-theme .empty-state::after {
  content: "";
  position: absolute;
  right: 0.85rem;
  bottom: 0.85rem;
  width: 34px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.48;
  pointer-events: none;
}

body.caliber-theme .card:hover {
  border-color: rgba(224, 32, 22, 0.44) !important;
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.5), 0 0 28px rgba(184, 13, 7, 0.16) !important;
}

body.caliber-theme .card-header,
body.caliber-theme .card-footer,
body.caliber-theme .modal-header,
body.caliber-theme .modal-footer {
  background: rgba(5, 5, 5, 0.46) !important;
  border-color: var(--color-border-soft) !important;
}

body.caliber-theme .btn,
body.caliber-theme .challenge-submit,
body.caliber-theme .btn-info,
body.caliber-theme .btn-light,
body.caliber-theme .btn-secondary {
  min-height: 42px;
  border-radius: 0 !important;
  clip-path: polygon(0 0, calc(100% - var(--kaliber-cut-sm)) 0, 100% var(--kaliber-cut-sm), 100% 100%, var(--kaliber-cut-sm) 100%, 0 calc(100% - var(--kaliber-cut-sm)));
}

body.caliber-theme .btn-primary,
body.caliber-theme .challenge-submit {
  background:
    linear-gradient(135deg, var(--color-primary-bright), var(--color-primary) 48%, var(--color-primary-dark)) !important;
  border: 1px solid rgba(244, 241, 230, 0.14) !important;
  color: #fff !important;
  box-shadow: 0 0 24px rgba(184, 13, 7, 0.28) !important;
}

body.caliber-theme .btn-primary:hover,
body.caliber-theme .btn-primary:focus,
body.caliber-theme .challenge-submit:hover,
body.caliber-theme .challenge-submit:focus {
  background:
    linear-gradient(135deg, #FF3B30, var(--color-primary-bright) 52%, var(--color-primary)) !important;
  transform: translateY(-1px);
}

body.caliber-theme .btn-secondary,
body.caliber-theme .btn-info,
body.caliber-theme .btn-light,
body.caliber-theme .btn-outline-secondary {
  background: rgba(21, 21, 24, 0.92) !important;
  border: 1px solid rgba(102, 102, 102, 0.58) !important;
  color: var(--color-text) !important;
}

body.caliber-theme .btn-secondary:hover,
body.caliber-theme .btn-info:hover,
body.caliber-theme .btn-light:hover,
body.caliber-theme .btn-outline-secondary:hover {
  border-color: var(--color-primary-bright) !important;
  color: #fff !important;
  box-shadow: 0 0 20px rgba(184, 13, 7, 0.2) !important;
}

body.caliber-theme .form-control,
body.caliber-theme input,
body.caliber-theme textarea,
body.caliber-theme select,
body.caliber-theme .custom-select {
  min-height: 44px;
  background:
    linear-gradient(180deg, rgba(5, 5, 5, 0.98), rgba(13, 13, 15, 0.98)) !important;
  border: 1px solid rgba(102, 102, 102, 0.42) !important;
  border-radius: 0 !important;
  color: var(--color-text) !important;
  box-shadow: inset 3px 0 0 rgba(184, 13, 7, 0.48);
}

body.caliber-theme .form-control:focus,
body.caliber-theme input:focus,
body.caliber-theme textarea:focus,
body.caliber-theme select:focus,
body.caliber-theme .custom-select:focus {
  border-color: var(--color-primary-bright) !important;
  box-shadow:
    inset 3px 0 0 var(--color-primary-bright),
    0 0 0 0.2rem rgba(184, 13, 7, 0.18) !important;
}

body.caliber-theme .form-group label {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

body.caliber-theme .nav-tabs,
body.caliber-theme .nav-pills {
  gap: 0.45rem;
  border-color: var(--color-border-soft) !important;
}

body.caliber-theme .nav-tabs .nav-link,
body.caliber-theme .nav-pills .nav-link {
  border-radius: 0 !important;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

body.caliber-theme .nav-tabs .nav-link.active,
body.caliber-theme .nav-pills .nav-link.active {
  background:
    linear-gradient(135deg, rgba(224, 32, 22, 0.92), rgba(107, 12, 9, 0.94)) !important;
  border-color: rgba(224, 32, 22, 0.6) !important;
}

body.caliber-theme #challenges-board {
  position: relative;
  padding-bottom: 1.5rem;
}

body.caliber-theme #challenges-board > [id$="-row"] {
  position: relative;
  margin-top: 1.25rem;
  padding: 1.25rem 0 0.6rem;
}

body.caliber-theme #challenges-board > [id$="-row"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: 15px;
  right: 15px;
  height: 1px;
  background:
    linear-gradient(90deg, var(--color-primary-bright), rgba(244, 241, 230, 0.08), transparent);
}

body.caliber-theme .category-header {
  position: relative;
  padding-left: 0 !important;
}

body.caliber-theme .category-header h3 {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  margin: 0;
  padding: 0.58rem 1rem 0.58rem 1.15rem;
  background:
    linear-gradient(90deg, rgba(184, 13, 7, 0.28), rgba(21, 21, 24, 0.72));
  border: 1px solid rgba(224, 32, 22, 0.32);
  color: var(--color-text);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

body.caliber-theme .category-header h3::before {
  content: "";
  width: 8px;
  height: 26px;
  margin-right: 0.72rem;
  background: linear-gradient(180deg, var(--color-primary-bright), var(--color-primary-dark));
  box-shadow: 0 0 18px rgba(224, 32, 22, 0.36);
}

body.caliber-theme .challenges-row {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  width: 100%;
  max-width: none;
  padding: 0 !important;
}

body.caliber-theme .challenges-row > .col-md-3 {
  display: block !important;
  width: 100%;
  max-width: none;
  min-width: 0;
  padding: 0 !important;
}

body.caliber-theme .challenge-button {
  position: relative;
  display: grid;
  grid-template-rows: minmax(2.8rem, auto) auto;
  align-content: space-between;
  gap: 0.95rem;
  width: 100%;
  min-height: 148px;
  padding: 1.1rem 1rem !important;
  overflow: hidden;
  white-space: normal !important;
  text-align: left;
  background:
    linear-gradient(154deg, rgba(184, 13, 7, 0.16), transparent 40%),
    linear-gradient(180deg, rgba(21, 21, 24, 0.98), rgba(8, 8, 9, 0.98)) !important;
  border: 1px solid rgba(102, 102, 102, 0.42) !important;
  border-radius: 0 !important;
  clip-path: polygon(0 0, calc(100% - var(--kaliber-cut)) 0, 100% var(--kaliber-cut), 100% 100%, var(--kaliber-cut) 100%, 0 calc(100% - var(--kaliber-cut)));
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.42), inset 0 0 0 1px rgba(244, 241, 230, 0.035) !important;
}

body.caliber-theme .challenge-button::before {
  content: "";
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 34px;
  height: 34px;
  border-top: 1px solid var(--color-primary-bright);
  border-right: 1px solid var(--color-primary-bright);
  opacity: 0.44;
  pointer-events: none;
}

body.caliber-theme .challenge-button::after {
  right: 0.95rem;
  bottom: 0.9rem;
  width: 42px;
  height: 1px;
  background: var(--color-accent);
  border: 0;
  opacity: 0.36;
}

body.caliber-theme .challenge-button p {
  display: -webkit-box;
  min-height: 2.7rem;
  margin: 0;
  overflow: hidden;
  color: var(--color-text) !important;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.25;
  text-transform: uppercase;
  white-space: normal;
  word-break: break-word;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

body.caliber-theme .challenge-button span {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  min-height: 30px;
  padding: 0.2rem 0.78rem 0.2rem 0;
  color: var(--color-text-muted) !important;
  font-family: var(--font-mono) !important;
  font-weight: 800;
}

body.caliber-theme .challenge-button:hover,
body.caliber-theme .challenge-button:focus {
  border-color: rgba(224, 32, 22, 0.76) !important;
  transform: translateY(-3px);
  box-shadow:
    0 22px 45px rgba(0, 0, 0, 0.54),
    0 0 30px rgba(184, 13, 7, 0.22) !important;
}

body.caliber-theme .solved-challenge {
  background:
    linear-gradient(152deg, rgba(25, 195, 125, 0.22), rgba(15, 143, 95, 0.09) 48%, rgba(5, 5, 5, 0.98)),
    #0D0D0F !important;
  border-color: rgba(25, 195, 125, 0.82) !important;
  opacity: 1 !important;
}

body.caliber-theme .solved-challenge::before {
  border-color: var(--color-success);
}

body.caliber-theme .solved-challenge::after {
  right: 0.85rem;
  bottom: 0.75rem;
  color: var(--color-success);
  background: transparent;
  font-family: var(--font-mono) !important;
  text-shadow: none;
  opacity: 1;
}

body.caliber-theme .corner-button-check {
  top: 0.9rem;
  right: 0.9rem;
  margin: 0;
  color: var(--color-success);
}

body.caliber-theme #challenge-window .modal-dialog {
  width: min(100%, 980px);
}

body.caliber-theme #challenge-window .modal-content {
  max-width: 980px;
  padding: 1.1rem;
  border-color: rgba(224, 32, 22, 0.42) !important;
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.72), 0 0 42px rgba(184, 13, 7, 0.2) !important;
}

body.caliber-theme #challenge-window .modal-body {
  padding: 0.5rem;
}

body.caliber-theme #challenge-window .close {
  position: absolute;
  top: 0.65rem;
  right: 0.8rem;
  z-index: 2;
  width: 38px;
  height: 38px;
  color: var(--color-text);
  background: rgba(184, 13, 7, 0.18);
  border: 1px solid rgba(224, 32, 22, 0.35);
  opacity: 1;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

body.caliber-theme .challenge-name {
  max-width: 86%;
  margin: 0.65rem auto 0.35rem;
  font-size: 1.75rem !important;
  line-height: 1.12;
  word-break: break-word;
}

body.caliber-theme .challenge-value {
  margin-bottom: 1rem;
  color: var(--color-text-muted) !important;
  font-family: var(--font-mono) !important;
}

body.caliber-theme .challenge-desc,
body.caliber-theme .chal-desc {
  display: block;
  padding: 1rem 1.1rem;
  background: rgba(5, 5, 5, 0.42);
  border: 1px solid rgba(102, 102, 102, 0.28);
  color: var(--color-text);
  line-height: 1.68;
}

body.caliber-theme .challenge-files .btn,
body.caliber-theme .challenge-hints .btn {
  margin-top: 0.5rem;
}

body.caliber-theme .submit-row {
  align-items: stretch;
  margin-top: 1.15rem;
}

body.caliber-theme .key-submit .btn,
body.caliber-theme #challenge-submit {
  width: 100%;
  height: 100%;
}

body.caliber-theme .table {
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(21, 21, 24, 0.96), rgba(5, 5, 5, 0.98)) !important;
  border: 1px solid rgba(102, 102, 102, 0.34);
  border-collapse: separate;
  border-spacing: 0;
  box-shadow: var(--shadow-soft);
}

body.caliber-theme .table thead td,
body.caliber-theme .table thead th {
  color: #fff !important;
  background:
    linear-gradient(90deg, var(--color-primary-dark), var(--color-primary), rgba(184, 13, 7, 0.3)) !important;
  border: 0 !important;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-transform: uppercase;
}

body.caliber-theme .table tbody td,
body.caliber-theme .table tbody th {
  border-top: 1px solid rgba(102, 102, 102, 0.24) !important;
  color: var(--color-text);
  vertical-align: middle;
}

body.caliber-theme .table tbody tr {
  background: rgba(255, 255, 255, 0.018) !important;
}

body.caliber-theme .table tbody tr:nth-child(1) {
  box-shadow: inset 4px 0 0 var(--color-accent);
}

body.caliber-theme .table tbody tr:nth-child(2) {
  box-shadow: inset 4px 0 0 #C0C0C0;
}

body.caliber-theme .table tbody tr:nth-child(3) {
  box-shadow: inset 4px 0 0 #CD7F32;
}

body.caliber-theme .table tbody tr:hover {
  background: rgba(184, 13, 7, 0.12) !important;
}

body.caliber-theme #score-graph,
body.caliber-theme #solves-graph,
body.caliber-theme #keys-pie-graph,
body.caliber-theme #categories-pie-graph {
  min-height: 260px;
  margin-bottom: 1.25rem;
  padding: 1rem;
}

body.caliber-theme .pbadge,
body.caliber-theme .badge,
body.caliber-theme .challenge-tag {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0.26rem 0.62rem;
  background: rgba(21, 21, 24, 0.95) !important;
  border: 1px solid rgba(102, 102, 102, 0.48) !important;
  border-radius: 0 !important;
  color: var(--color-text-muted) !important;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
}

body.caliber-theme .badge-primary,
body.caliber-theme .challenge-tag {
  border-color: rgba(224, 32, 22, 0.5) !important;
  color: var(--color-primary-bright) !important;
}

body.caliber-theme .alert {
  border-radius: 0 !important;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

body.caliber-theme .empty-state {
  min-height: 260px;
  border-color: rgba(224, 32, 22, 0.22) !important;
}

body.caliber-theme .notification-card {
  position: relative;
}

body.caliber-theme .notification-card::before {
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  border-radius: 0;
}

body.caliber-theme .footer {
  min-height: 76px;
  padding: 1.1rem 0;
  background:
    linear-gradient(90deg, transparent, rgba(184, 13, 7, 0.08), transparent),
    rgba(5, 5, 5, 0.98) !important;
}

@media (max-width: 991.98px) {
  body.caliber-theme .jumbotron h1 {
    font-size: 2rem;
  }

  body.caliber-theme .jumbotron::after {
    right: -70px;
    opacity: 0.14;
  }

  body.caliber-theme .challenges-row {
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  }
}

@media (max-width: 767.98px) {
  body.caliber-theme main {
    padding-top: 4.75rem;
  }

  body.caliber-theme .caliber-navbar.navbar {
    min-height: 68px;
  }

  body.caliber-theme .navbar-brand {
    border-right: 0;
  }

  body.caliber-theme .navbar-brand::after,
  body.caliber-theme .jumbotron::after,
  body.caliber-theme::after {
    display: none;
  }

  body.caliber-theme .jumbotron {
    padding: 2.7rem 0 2rem;
  }

  body.caliber-theme .jumbotron h1 {
    font-size: 1.75rem;
  }

  body.caliber-theme .challenges-row {
    grid-template-columns: 1fr;
  }

  body.caliber-theme .challenge-button {
    min-height: 128px;
  }

  body.caliber-theme .table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

body.caliber-theme *,
body.caliber-theme *::before,
body.caliber-theme *::after {
  letter-spacing: 0 !important;
}

/* Kaliber v3 compact pass: tighter scale after live visual review. */
body.caliber-theme main {
  padding-top: 0 !important;
}

body.caliber-theme main > .container::before {
  top: -0.75rem;
  width: 72px;
  height: 2px;
}

body.caliber-theme .caliber-navbar.navbar {
  min-height: 60px;
  padding: 0.38rem 0;
}

body.caliber-theme .navbar-brand {
  min-height: 36px;
  padding: 0.1rem 0.75rem 0.1rem 0;
  font-size: 1rem !important;
}

body.caliber-theme .navbar-brand .ctf_logo,
body.caliber-theme .navbar-brand .brand-emblem {
  height: 32px;
  max-height: 32px;
}

body.caliber-theme .navbar-brand::after {
  width: 22px;
  margin-left: 0.55rem;
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link {
  min-height: 32px;
  padding: 0.38rem 0.5rem !important;
  font-size: 0.86rem;
  line-height: 1.18;
}

body.caliber-theme .navbar-dark .navbar-nav .nav-link i {
  font-size: 0.86rem;
}

body.caliber-theme .jumbotron {
  margin-bottom: 1.15rem;
  padding: 2rem 0 1.6rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

body.caliber-theme .jumbotron::before {
  width: 5px;
}

body.caliber-theme .jumbotron::after {
  right: 8vw;
  width: 150px;
  height: 150px;
  background:
    linear-gradient(90deg, transparent 49%, rgba(224, 32, 22, 0.16) 49% 51%, transparent 51%),
    linear-gradient(0deg, transparent 49%, rgba(224, 32, 22, 0.12) 49% 51%, transparent 51%),
    url("../img/logo.png") center / 96px auto no-repeat;
  opacity: 0.22;
}

body.caliber-theme .jumbotron h1 {
  padding-left: 0.85rem;
  font-size: 2rem;
  line-height: 1.08;
}

body.caliber-theme .jumbotron h1::before {
  margin-bottom: 0.38rem;
  font-size: 0.68rem;
}

body.caliber-theme .jumbotron h1::after {
  bottom: -0.52rem;
  width: 118px;
}

body.caliber-theme #score-graph,
body.caliber-theme #solves-graph,
body.caliber-theme #keys-pie-graph,
body.caliber-theme #categories-pie-graph {
  max-width: 980px;
  min-height: 198px;
  margin-right: auto;
  margin-bottom: 1rem;
  margin-left: auto;
  padding: 0.85rem;
}

body.caliber-theme .empty-state {
  min-height: 190px;
  padding: 1.55rem 1.2rem;
}

body.caliber-theme .empty-state i {
  font-size: 1.55rem;
}

body.caliber-theme .empty-state h2,
body.caliber-theme .empty-state h3 {
  font-size: 1.22rem;
}

body.caliber-theme .challenges-row {
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.82rem;
}

body.caliber-theme .challenge-button {
  min-height: 124px;
  padding: 0.9rem 0.85rem !important;
}

body.caliber-theme .challenge-button p {
  min-height: 2.35rem;
  font-size: 0.9rem;
}

body.caliber-theme .challenge-button span {
  min-height: 26px;
  font-size: 0.88rem;
}

body.caliber-theme .challenge-button::before {
  top: 0.72rem;
  right: 0.72rem;
  width: 26px;
  height: 26px;
}

body.caliber-theme #challenge-window .modal-content {
  padding: 0.8rem;
}

body.caliber-theme .challenge-name {
  font-size: 1.42rem !important;
}

body.caliber-theme .challenge-desc,
body.caliber-theme .chal-desc {
  padding: 0.85rem 0.95rem;
  line-height: 1.58;
}

body.caliber-theme .form-control,
body.caliber-theme input,
body.caliber-theme textarea,
body.caliber-theme select,
body.caliber-theme .custom-select {
  min-height: 40px;
}

body.caliber-theme .btn,
body.caliber-theme .challenge-submit,
body.caliber-theme .btn-info,
body.caliber-theme .btn-light,
body.caliber-theme .btn-secondary {
  min-height: 38px;
  padding-top: 0.42rem;
  padding-bottom: 0.42rem;
}

body.caliber-theme .table td,
body.caliber-theme .table th {
  padding: 0.58rem 0.75rem;
}

body.caliber-theme .footer {
  min-height: 54px;
  padding: 0.62rem 0;
}

body.caliber-theme .footer small {
  font-size: 0.74rem;
}

@media (max-width: 991.98px) {
  body.caliber-theme .jumbotron h1 {
    font-size: 1.7rem;
  }

  body.caliber-theme .challenges-row {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

@media (max-width: 767.98px) {
  body.caliber-theme main {
    padding-top: 0 !important;
  }

  body.caliber-theme .caliber-navbar.navbar {
    min-height: 56px;
  }

  body.caliber-theme .jumbotron {
    padding: 1.65rem 0 1.35rem;
  }

  body.caliber-theme .jumbotron h1 {
    font-size: 1.48rem;
  }

  body.caliber-theme #score-graph,
  body.caliber-theme #solves-graph,
  body.caliber-theme #keys-pie-graph,
  body.caliber-theme #categories-pie-graph,
  body.caliber-theme .empty-state {
    min-height: 170px;
  }
}