/*
 * Thème BSides La Réunion × Cyber Tour Réunion 2026
 * Thème enfant de « core » : ne surcharge que l'apparence (aucune étape de build).
 * DA reprise de l'affiche : noir charbon, terracotta, blanc, titres condensés.
 */

@font-face {
  font-family: "Bebas Neue";
  src: url("../fonts/bebas-neue-latin-400-normal.woff2") format("woff2");
  font-display: swap;
}
@font-face {
  font-family: "Oswald";
  font-weight: 700;
  src: url("../fonts/oswald-latin-700-normal.woff2") format("woff2");
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
  font-display: swap;
}

:root,
[data-bs-theme="dark"] {
  --bs-body-bg: #121212;
  --bs-body-color: #e9e6e2;
  --bs-secondary-bg: #1b1b1b;
  --bs-tertiary-bg: #181818;
  --bs-border-color: #2e2926;
  --bs-link-color: #d9774f;
  --bs-link-hover-color: #f08c62;
  --bs-link-color-rgb: 217, 119, 79;
  --bs-link-hover-color-rgb: 240, 140, 98;
  --bs-primary: #bc5c3e;
  --bs-primary-rgb: 188, 92, 62;
  --bs-emphasis-color: #fff;

  --cu: #bc5c3e; /* terracotta de l'affiche */
  --cu-light: #d9774f;
  --cu-dark: #8f432b;
  --ink: #121212;
  --panel: #1b1b1b;
  --panel-2: #222;
  --line: #2e2926;
  --font-display: "Bebas Neue", "Oswald", Impact, "Arial Narrow", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

html {
  background: var(--ink);
}

body {
  background: transparent; /* le canvas et le dégradé passent derrière */
  font-family: "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(188, 92, 62, 0.16), transparent 70%),
    linear-gradient(180deg, #121212 0%, #121212 55%, #1d1d1d 100%);
}
main {
  flex: 1 0 auto;
  padding-top: 64px; /* navbar fixe */
}

#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}
.crt {
  position: fixed;
  inset: 0;
  z-index: 1080;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.025) 0,
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}

/* ---------- typo ---------- */
h1,
h2,
h3,
h4,
.navbar-brand,
.category-header h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
h1 { font-size: clamp(2.6rem, 6vw, 4rem); }
h2 { color: var(--cu-light); }
h3 { color: var(--cu-light); }
code,
pre,
.font-monospace {
  font-family: var(--font-mono);
}
a { transition: color 0.15s; }

/* ---------- navbar ---------- */
.navbar {
  background: rgba(18, 18, 18, 0.86) !important;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.navbar::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--cu) 0, var(--cu) 140px, transparent 140px);
}
.navbar .nav-link {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #cfcac5;
  position: relative;
}
.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--cu-light);
}
.navbar .nav-link.dropdown-toggle::after { display: none; }
.navbar { padding-top: 0.4rem; padding-bottom: 0.4rem; }
.navbar .ctf_logo { height: 46px; width: auto; }
@media (max-width: 767.98px) {
  .navbar .ctf_logo { height: 36px; }
}

/* ---------- bandeaux de page (jumbotron) ---------- */
.jumbotron {
  background: transparent;
  border-bottom: 1px solid var(--line);
  padding: 2.5rem 0 1.5rem;
  margin-bottom: 1rem;
  position: relative;
}
.jumbotron h1 {
  color: var(--cu);
  display: inline-block;
  position: relative;
  padding-left: 1.4rem;
}
.jumbotron h1::before {
  /* chevrons de l'affiche */
  content: "\00BB";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--cu-dark);
}

/* ---------- boutons ---------- */
.btn {
  border-radius: 2px;
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.btn-primary,
.btn-success {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--cu);
  --bs-btn-border-color: var(--cu);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--cu-light);
  --bs-btn-hover-border-color: var(--cu-light);
  --bs-btn-active-bg: var(--cu-dark);
  --bs-btn-active-border-color: var(--cu-dark);
  --bs-btn-focus-shadow-rgb: 188, 92, 62;
  --bs-btn-disabled-bg: var(--cu-dark);
  --bs-btn-disabled-border-color: var(--cu-dark);
  box-shadow: 0 0 0 0 rgba(188, 92, 62, 0);
  transition: box-shadow 0.2s, background-color 0.15s;
}
.btn-primary:hover { box-shadow: 0 0 22px rgba(188, 92, 62, 0.45); }
.btn-outline-primary {
  --bs-btn-color: var(--cu-light);
  --bs-btn-border-color: var(--cu);
  --bs-btn-hover-bg: var(--cu);
  --bs-btn-hover-border-color: var(--cu);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: var(--cu-dark);
  --bs-btn-active-border-color: var(--cu-dark);
}
.btn-dark {
  --bs-btn-bg: var(--panel);
  --bs-btn-border-color: var(--line);
  --bs-btn-hover-bg: var(--panel-2);
  --bs-btn-hover-border-color: var(--cu);
  --bs-btn-active-bg: var(--panel-2);
  --bs-btn-active-border-color: var(--cu);
  --bs-btn-color: #e9e6e2;
}

/* ---------- formulaires ---------- */
.form-control,
.form-select {
  background-color: #181818;
  border: 1px solid #3a3330;
  border-radius: 2px;
  color: #eee;
}
.form-control:focus,
.form-select:focus {
  background-color: #1d1d1d;
  border-color: var(--cu);
  box-shadow: 0 0 0 0.2rem rgba(188, 92, 62, 0.25);
  color: #fff;
}
.form-control::placeholder { color: #6f6a66; }
.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3e%3cpath fill='%23bc5c3e' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e");
}
.form-check-input:checked {
  background-color: var(--cu);
  border-color: var(--cu);
}
label,
.form-label { color: #cfcac5; }

/* ---------- cartes, modales, alertes ---------- */
.card,
.modal-content,
.dropdown-menu,
.list-group-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
}
.card-header { background: var(--panel-2); border-bottom: 1px solid var(--line); }
.modal-header,
.modal-footer { border-color: var(--line); }
.dropdown-item:hover { background: var(--cu); color: #fff; }
.alert { border-radius: 2px; border-left: 3px solid var(--cu); }

.nav-pills .nav-link {
  border-radius: 2px;
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #cfcac5;
}
.nav-pills .nav-link.active { background: var(--cu); color: #fff; }
.nav-tabs { border-color: var(--line); }
.nav-tabs .nav-link { color: #cfcac5; border-radius: 2px 2px 0 0; }
.nav-tabs .nav-link.active {
  background: var(--panel);
  border-color: var(--line) var(--line) var(--panel);
  color: var(--cu-light);
}
.badge.bg-secondary { background: var(--cu-dark) !important; }

/* ---------- tables (scoreboard) ---------- */
.table {
  --bs-table-bg: transparent;
  --bs-table-striped-bg: rgba(188, 92, 62, 0.06);
  --bs-table-hover-bg: rgba(188, 92, 62, 0.12);
  --bs-table-border-color: var(--line);
  color: #e9e6e2;
}
.table thead th {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cu-light);
  border-bottom: 2px solid var(--cu) !important;
}
.table tbody tr:nth-child(-n + 3) th:first-child,
.table tbody tr:nth-child(-n + 3) td:first-child {
  color: var(--cu-light);
}

/* ---------- challenges ---------- */
.category-header h3 {
  display: inline-block;
  font-size: 2rem;
  color: var(--cu);
  border-bottom: 2px solid var(--cu);
  padding-bottom: 0.1rem;
}
/* le thème core cible [data-bs-theme="dark"] .challenge-button : même spécificité ici */
[data-bs-theme="dark"] .challenge-button {
  position: relative;
  overflow: hidden;
  min-height: 7.5rem;
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.2s;
}
.challenge-button::before {
  /* coin « chevron » */
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-top: 22px solid var(--cu);
  border-right: 22px solid transparent;
  opacity: 0.85;
}
[data-bs-theme="dark"] .challenge-button:hover {
  background-color: var(--panel-2);
  transform: translateY(-3px);
  border-color: var(--cu);
  box-shadow: 0 8px 28px rgba(188, 92, 62, 0.25);
}
.challenge-button .challenge-inner p {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}
.challenge-button .challenge-inner span {
  font-family: var(--font-mono);
  color: var(--cu-light);
}
[data-bs-theme="dark"] .challenge-button.challenge-solved,
[data-bs-theme="dark"] .challenge-button.challenge-solved:hover {
  background-color: var(--cu-dark);
  background-image: linear-gradient(135deg, rgba(188, 92, 62, 0.55), rgba(18, 18, 18, 0.55) 80%);
  border-color: var(--cu);
}
.challenge-button.challenge-solved::before { border-top-color: #fff; }
.challenge-button.challenge-solved .challenge-inner span { color: #fff; }

/* ---------- pages de contenu (mentions légales, confidentialité, règlement) ---------- */
.page-content { max-width: 960px; padding-top: 2.5rem; }
.page-content h1 { color: var(--cu); margin-bottom: 0.4rem; }
.page-content h2 { font-size: 1.9rem; margin-top: 2.2rem; }
.page-content p,
.page-content li { line-height: 1.65; }
.page-content table {
  width: 100%;
  margin: 1rem 0 1.5rem;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.page-content th {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cu-light);
  text-align: left;
  border-bottom: 2px solid var(--cu);
  padding: 0.5rem 0.75rem;
}
.page-content td {
  vertical-align: top;
  padding: 0.55rem 0.75rem;
  border-bottom: 1px solid var(--line);
}
.page-content tbody tr:nth-child(even) { background: rgba(188, 92, 62, 0.05); }

/* ---------- pied de page ---------- */
.footer {
  flex-shrink: 0;
  margin-top: 4rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  background: rgba(18, 18, 18, 0.7);
}
.footer .sep { color: var(--cu); padding: 0 0.35rem; }
.footer-legal { margin-top: 0.15rem; font-size: 0.8rem; }
.footer-legal a { color: #a39d97; padding: 0 0.6rem; }
.footer-legal a:hover { color: var(--cu-light); }

::selection { background: var(--cu); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #121212; }
::-webkit-scrollbar-thumb { background: var(--cu-dark); }

/* =====================================================================
 * Accueil
 * ===================================================================== */
.is-home main { padding-top: 0; margin-bottom: 0; }
/* le pied de page se superpose au bas du hero : l'accueil tient dans l'écran sans scroll */
body { position: relative; }
.is-home .footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  height: auto;
  line-height: 1.4;
  margin-top: 0;
  padding: 0.6rem 0;
  border-top: 0;
  background: none;
}

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding: 5.5rem 0 3.2rem;
}
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}
.hero-kicker {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #a39d97;
  min-height: 1.5em;
  margin-bottom: 1rem;
}
.hero-kicker .prompt { color: var(--cu); }
.cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--cu);
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-title {
  font-size: clamp(4rem, min(15vw, 24vh), 14rem);
  line-height: 0.86;
  margin: 0;
  color: var(--cu);
  letter-spacing: 0.01em;
}
.hero-title .glitch {
  display: block;
  position: relative;
  width: fit-content;
}
.hero-title .glitch-2 { margin-left: clamp(0px, 8vw, 9rem); }
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
}
.glitch::before {
  color: #fff;
  text-shadow: -3px 0 rgba(255, 255, 255, 0.5);
  clip-path: inset(0 0 60% 0);
}
.glitch::after {
  color: var(--cu-light);
  text-shadow: 3px 0 rgba(0, 220, 255, 0.55);
  clip-path: inset(55% 0 0 0);
}
.glitch { animation: glow 5s ease-in-out infinite; }
.glitch::before { animation: glitch-a 4.2s infinite steps(1); }
.glitch::after { animation: glitch-b 4.2s infinite steps(1); }
.glitch-2::before { animation-delay: 1.3s; }
.glitch-2::after { animation-delay: 1.3s; }

@keyframes glow {
  0%, 100% { text-shadow: 0 0 0 rgba(188, 92, 62, 0); }
  50% { text-shadow: 0 0 40px rgba(188, 92, 62, 0.35); }
}
@keyframes glitch-a {
  0%, 88%, 100% { opacity: 0; transform: none; }
  89% { opacity: 1; transform: translate(-6px, -2px); clip-path: inset(10% 0 55% 0); }
  91% { opacity: 1; transform: translate(5px, 1px); clip-path: inset(40% 0 30% 0); }
  93% { opacity: 1; transform: translate(-3px, 0); clip-path: inset(0 0 80% 0); }
  95% { opacity: 0; }
}
@keyframes glitch-b {
  0%, 89%, 100% { opacity: 0; transform: none; }
  90% { opacity: 1; transform: translate(6px, 2px); clip-path: inset(60% 0 5% 0); }
  92% { opacity: 1; transform: translate(-5px, -1px); clip-path: inset(25% 0 50% 0); }
  94% { opacity: 1; transform: translate(3px, 0); clip-path: inset(80% 0 0 0); }
  96% { opacity: 0; }
}

.hero-right {
  display: flex;
  flex-direction: column;
  gap: clamp(0.8rem, 3vh, 2rem);
}
.hero-sub {
  font-size: clamp(1.8rem, 5vh, 3rem);
  color: var(--cu);
  margin-bottom: clamp(0.4rem, 1.6vh, 1rem);
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 clamp(0.8rem, 3vh, 1.8rem);
  font-size: clamp(1.05rem, 3vh, 1.5rem);
}
.checklist li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: clamp(0.1rem, 0.5vh, 0.28rem) 0;
}
.checklist li::before {
  content: "";
  flex: none;
  width: 1.2em;
  height: 1.2em;
  border: 2px solid var(--cu-dark);
  background: rgba(188, 92, 62, 0.1);
  transition: background 0.2s, border-color 0.2s;
}
.checklist li:hover::before {
  background: var(--cu);
  border-color: var(--cu);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-cta .btn { padding: 0.6rem 1.6rem; font-size: clamp(1.15rem, 3vh, 1.4rem); }

.hero-countdown {
  border: 1px solid var(--line);
  border-left: 3px solid var(--cu);
  background: rgba(27, 27, 27, 0.75);
  backdrop-filter: blur(4px);
  padding: clamp(0.8rem, 2.4vh, 1.4rem) 1.6rem;
  position: relative;
}
.hero-countdown::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 0;
  height: 0;
  border-top: 26px solid var(--cu);
  border-left: 26px solid transparent;
}
.cd-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #a39d97;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.3rem;
}
.cd-digits { display: flex; gap: 1.4rem; }
.cd-digits div { display: flex; flex-direction: column; min-width: 3.4rem; }
.cd-digits b {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, min(6vw, 8vh), 4.5rem);
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.cd-digits small {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cu-light);
}

/* tablette / mobile : une seule colonne, toujours dimensionnée sur la hauteur de l'écran */
@media (max-width: 991.98px) {
  .hero { padding-top: 4.8rem; }
  .hero-layout { grid-template-columns: 1fr; gap: clamp(1rem, 3vh, 2rem); }
  .hero-title { font-size: clamp(3.5rem, min(26vw, 15vh), 10rem); }
  .hero-title .glitch-2 { margin-left: 3rem; }
}
@media (max-width: 575.98px) {
  .hero-kicker { display: none; }
  .hero-sub { font-size: 1.7rem; }
  .hero-cta { gap: 0.6rem; }
  .hero-cta .btn { padding: 0.5rem 1rem; font-size: 1.1rem; }
  .cd-digits { gap: 1rem; }
  .cd-digits div { min-width: 2.8rem; }
  .footer small { font-size: 0.7rem; }
}

/* petits téléphones (≈ 360×640) : on resserre encore pour éviter le scroll */
@media (max-width: 575.98px) and (max-height: 720px) {
  .hero { padding-top: 4.2rem; padding-bottom: 2.4rem; }
  .hero-title { font-size: clamp(3rem, 11.5vh, 6rem); }
  .hero-sub { font-size: 1.4rem; margin-bottom: 0.2rem; }
  .checklist { font-size: 0.95rem; margin-bottom: 0.6rem; }
  .checklist li { padding: 0.05rem 0; }
  .hero-countdown { padding: 0.5rem 1rem; }
  .cd-digits b { font-size: 2.2rem; }
}

/* ---------- accessibilité ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .crt { display: none; }
}

/* fond plus discret hors de l'accueil, pour ne pas gêner la lecture des challenges */
body:not(.is-home) #bg-canvas { opacity: 0.28; }
/* accueil : la pluie s'estompe vers la gauche pour laisser le titre respirer */
.is-home #bg-canvas {
  opacity: 0.5;
  -webkit-mask-image: linear-gradient(90deg, transparent 5%, #000 65%);
  mask-image: linear-gradient(90deg, transparent 5%, #000 65%);
}