/* leHack theme — CTFd skin
 * Palette extracted from lehack.org 2026:
 *   #050815 bg, #fbe1c1 cream foreground, #facc15 yellow accent, #4c6066 steel.
 * Overrides core.css; keep bootstrap class names compatible.
 */

/* ─── palette — calibrated for WCAG AA contrast on dark ─────────────────── */
:root {
    /* Background layers — BRIGHTER overall for more luminous feel */
    --lh-bg:          #0a0a15;   /* page bg — slightly brighter than #050815 */
    --lh-bg-soft:     #1f1f2a;   /* form inputs */
    --lh-bg-card:     #2e2e3a;   /* cards / panels */
    --lh-bg-tile:     #404050;   /* challenge tiles — markedly bright */
    --lh-border:      #5a5a6e;   /* visible borders */
    --lh-border-hi:   #7a7a92;   /* hover borders */

    /* Cream — even more luminous warm foreground */
    --lh-text:        #fff0d6;   /* near-white cream → max luminance */
    --lh-text-muted:  #e0d4b8;   /* still warm but a bit dimmer */
    --lh-text-dim:    #a89880;   /* AA on dark */

    /* Orange — PRIMARY accent (TwistedWires brand orange) */
    --lh-red:         #d63316;   /* TwistedWires orange */
    --lh-red-hi:      #f45a2a;   /* hover state */
    --lh-red-bright:  #ff7a47;   /* glow / highlights */
    --lh-red-soft:    rgba(214, 51, 22, 0.22);

    /* Steel — secondary text / borders */
    --lh-steel:       #6b7a8a;

    /* Yellow — SOLVED status indicator */
    --lh-yellow:      #facc15;   /* on #050815 → 14:1 ✓ AAA */
    --lh-yellow-soft: rgba(250, 204, 21, 0.18);

    /* Orange — secondary warnings only */
    --lh-orange:      #fb923c;

    /* Aliases — all green refs map to yellow now (solved check), all cyan to red */
    --lh-green:       var(--lh-yellow);
    --lh-gold:        var(--lh-red);
    --lh-cyan:        var(--lh-red);
    --lh-cyan-soft:   var(--lh-red-soft);

    /* ── Override course-dashboard's blue/orange (theme_footer ~30 KB scoped CSS) ── */
    --blue:           var(--lh-red);
    --blue-50:        var(--lh-bg-soft);
    --blue-100:       var(--lh-bg-card);
    --blue-200:       var(--lh-border-hi);
    --blue-600:       var(--lh-red);
    --blue-700:       var(--lh-red);
    --blue-800:       var(--lh-bg-soft);
    --orange:         var(--lh-red);
    --orange-50:      var(--lh-red-soft);
    --orange-100:     var(--lh-red-soft);
    --orange-500:     var(--lh-red);
    --orange-600:     var(--lh-red-hi);
    --text-primary:   var(--lh-text);
    --text-secondary: var(--lh-text-muted);
    --text-tertiary:  var(--lh-text-dim);
    --bg-primary:     var(--lh-bg);
    --bg-secondary:   var(--lh-bg-soft);
    --bg-tertiary:    var(--lh-bg-card);
    --border:         var(--lh-border);
    --border-light:   var(--lh-border);
    --border-medium:  var(--lh-border-hi);
    /* surface-* are critical — course-dashboard uses them for white card bg */
    --surface:        var(--lh-bg);
    --surface-raised: var(--lh-bg-card);
    --surface-sunken: var(--lh-bg-soft);
}

/* ─── reset / base ──────────────────────────────────────────────────────── */
html, body {
    background: var(--lh-bg);
    color: var(--lh-text);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-feature-settings: "cv02", "cv03", "cv04", "ss01";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: auto;
    min-height: 100vh;
    overflow-x: hidden;
}
/* Body scrolls EXCEPT when a Bootstrap modal is open (modal-open lock) */
body:not(.modal-open) { overflow-y: auto; }
/* When modal is open: lock BOTH html AND body so wheel events stay inside the modal */
html:has(body.modal-open) { overflow: hidden !important; }
body.modal-open { overflow: hidden !important; }
main, .container, .container-fluid { overflow: visible; }

/* Subtle scanline / grid background — terminal vibe */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 0;
    background:
      linear-gradient(rgba(251, 225, 193, 0.02) 1px, transparent 1px) 0 0 / 100% 32px,
      radial-gradient(ellipse at top, rgba(250, 204, 21, 0.06), transparent 60%);
}
/* Note: NEVER set z-index on main — it creates a stacking context that traps
   Bootstrap modals (z:1050) BELOW their own backdrop (z:1040 at root). */
main { position: relative; }

a { color: var(--lh-red); transition: color .12s ease, opacity .12s ease; text-decoration: none; }
a:hover, a:focus { color: var(--lh-text); text-decoration: underline; outline: none; }

h1, h2, h3, h4, h5, h6 {
    color: var(--lh-text);
    font-weight: 800;
    letter-spacing: -0.02em;
}

code, pre, kbd, samp, .badge, .points {
    font-family: 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
}

/* ─── navbar — strictly single line ─────────────────────────────────────── */
.navbar.navbar-dark.bg-dark {
    background: rgba(5,8,21,0.94) !important;
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--lh-red);
    box-shadow: 0 1px 0 rgba(214,51,22,0.25);
    padding: 0.4rem 0;
    flex-wrap: nowrap !important;
}
/* Force the container and its children onto one row */
.navbar > .container {
    flex-wrap: nowrap !important;
    max-width: 100% !important;
    padding-left: 1rem;
    padding-right: 1rem;
}
.navbar .navbar-collapse {
    flex-wrap: nowrap !important;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: thin;
}
.navbar .navbar-nav {
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    white-space: nowrap;
}
.navbar .navbar-brand {
    padding: 0;
    height: 40px;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-right: 1.25rem;
}
.navbar .navbar-brand img.ctf_logo,
.navbar .navbar-brand .lehack-wordmark {
    height: 32px !important;
    width: auto;
}
.navbar-nav .nav-item {
    flex-shrink: 0;
}
.navbar-nav .nav-link {
    color: var(--lh-text-muted) !important;
    font-weight: 500;
    font-size: 0.85rem;
    padding: 0.4rem 0.7rem !important;
    border-bottom: 2px solid transparent;
    transition: color .12s, border-color .12s;
    white-space: nowrap;
}
/* Hide standalone "course/<page>" nav items (training pages bleed into nav) —
   user only wants Course Dashboard, Users, Scoreboard, Challenges in the bar. */
.navbar-nav .nav-item:has(a[href^="/course/"]) {
    display: none !important;
}
/* Compact right side icons on narrow viewports */
@media (max-width: 1100px) {
    .navbar-nav .nav-link .d-sm-block.d-md-none.d-lg-block { display: none !important; }
    .navbar-nav .nav-link .d-block.d-md-block.d-lg-none { display: block !important; }
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    color: var(--lh-red) !important;
    border-bottom-color: var(--lh-red);
}
.navbar-nav .nav-link.active {
    color: var(--lh-text) !important;
    border-bottom-color: var(--lh-text);
}

/* ─── main content area ─────────────────────────────────────────────────── */
.jumbotron, .container, .container-fluid {
    background: transparent;
}
.jumbotron {
    background: linear-gradient(180deg, rgba(250,204,21,0.04), transparent);
    border: 1px solid var(--lh-border);
    border-radius: 0;
    padding: 3.5rem 2rem;
    margin-top: 4.5rem;
}
.jumbotron h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--lh-text);
    margin-bottom: 0.5rem;
    font-weight: 900;
    letter-spacing: -0.025em;
}
.jumbotron h1::before {
    content: "[ ";
    color: var(--lh-red);
}
.jumbotron h1::after {
    content: " ]";
    color: var(--lh-red);
}

/* ─── cards (challenge tiles, panels) ───────────────────────────────────── */
.card, .modal-content {
    background: var(--lh-bg-card);
    border: 1px solid var(--lh-border);
    border-radius: 4px;
    color: var(--lh-text);
    transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.card:hover {
    border-color: var(--lh-red);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(214,51,22,0.22);
}
.card-header, .modal-header {
    background: var(--lh-bg-soft);
    border-bottom: 1px solid var(--lh-border);
    color: var(--lh-text);
    font-weight: 600;
}
.card-footer, .modal-footer {
    background: var(--lh-bg-soft);
    border-top: 1px solid var(--lh-border);
}
.card .text-muted, .card-text small { color: var(--lh-text-muted) !important; }

/* challenge button tiles — max readability */
.challenge-button, button.challenge-button {
    background: var(--lh-bg-tile) !important;
    border: 1px solid var(--lh-border) !important;
    color: var(--lh-text) !important;
    font-weight: 700 !important;
    font-family: 'Inter', sans-serif;
    border-radius: 6px;
    min-height: 92px !important;
    transition: all .15s ease;
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0,0,0,0.45);
    padding: 14px 12px 10px !important;
}
button.challenge-button p {
    color: var(--lh-text) !important;
    font-weight: 600 !important;
    font-size: 0.92rem !important;
    line-height: 1.35 !important;
    margin-bottom: 8px !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.55);
    white-space: normal !important;
    word-break: break-word;
    max-height: 4.2em;
    overflow: hidden;
}
button.challenge-button > span {
    color: var(--lh-text-muted) !important;
    font-family: 'JetBrains Mono', 'Fira Code', monospace !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    background: none !important;
    margin-top: auto !important;
    opacity: 0.85;
}
.challenge-button::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    background: var(--lh-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
}
.challenge-button:hover::before { transform: scaleX(1); }
.challenge-button:hover {
    border-color: var(--lh-red) !important;
    background: #2f2f3a !important;       /* brighten on hover (neutral) */
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(214,51,22,0.30);
}
.challenge-button:hover p { color: #ffffff !important; }
.challenge-button:hover > span { color: var(--lh-red-bright) !important; }
/* Solved — subtle, NOT yellow-dominant. Border + corner check are the only yellow cues. */
.challenge-button.solved-challenge {
    border-color: var(--lh-yellow) !important;
    background: var(--lh-bg-tile) !important;
    box-shadow: inset 0 0 0 1px rgba(250,204,21,0.20);
}
.challenge-button.solved-challenge p { color: var(--lh-text) !important; }
.challenge-button.solved-challenge > span { color: var(--lh-text-muted) !important; }
.challenge-button.solved-challenge:hover {
    border-color: var(--lh-yellow) !important;
    box-shadow: inset 0 0 0 1px rgba(250,204,21,0.35), 0 4px 12px rgba(250,204,21,0.10);
    transform: translateY(-2px);
}
/* Native FontAwesome check — small round amber badge, bottom-right (epita style) */
.challenge-button .corner-button-check {
    position: absolute !important;
    top: auto !important;
    bottom: 8px !important;
    right: 8px !important;
    left: auto !important;
    width: 18px !important;
    height: 18px !important;
    line-height: 18px !important;
    text-align: center !important;
    font-size: 10px !important;
    color: #1a1a22 !important;
    background: var(--lh-yellow) !important;
    border-radius: 50% !important;
    box-shadow: 0 1px 3px rgba(0,0,0,0.4) !important;
    z-index: 1 !important;
}
.challenge-button.solved-challenge:hover .corner-button-check {
    transform: scale(1.1);
    transition: transform 0.15s ease;
}

/* ─── buttons ───────────────────────────────────────────────────────────── */
.btn {
    border-radius: 4px;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all .12s ease;
    border-width: 1px;
}
.btn-primary {
    background: var(--lh-red);
    border-color: var(--lh-red);
    color: var(--lh-bg);
}
.btn-primary:hover, .btn-primary:focus {
    background: var(--lh-gold);
    border-color: var(--lh-gold);
    color: var(--lh-bg);
    box-shadow: 0 0 12px rgba(251,191,36,0.4);
}
.btn-success { background: var(--lh-green); border-color: var(--lh-green); color: var(--lh-bg); }
.btn-danger  { background: var(--lh-red); border-color: var(--lh-red); }
.btn-outline-secondary {
    color: var(--lh-text-muted);
    border-color: var(--lh-border-hi);
}
.btn-outline-secondary:hover {
    background: var(--lh-bg-soft);
    color: var(--lh-red);
    border-color: var(--lh-red);
}

/* ─── forms ─────────────────────────────────────────────────────────────── */
.form-control, .form-control:focus, select.form-control, textarea.form-control {
    background: var(--lh-bg-soft);
    border: 1px solid var(--lh-border-hi);
    color: var(--lh-text);
    border-radius: 4px;
}
.form-control:focus {
    border-color: var(--lh-red);
    box-shadow: 0 0 0 3px rgba(0,217,255,0.15);
    background: var(--lh-bg-card);
}
.form-control::placeholder { color: var(--lh-text-dim); }
label, .form-text { color: var(--lh-text-muted); }

/* ─── tables (scoreboard, users) ────────────────────────────────────────── */
table, .table {
    color: var(--lh-text);
    background: transparent;
}
.table thead th {
    background: var(--lh-bg-soft);
    border-bottom: 2px solid var(--lh-red);
    color: var(--lh-red);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.78rem;
}
.table tbody tr {
    border-bottom: 1px solid var(--lh-border);
    transition: background .12s;
}
.table-striped tbody tr:nth-of-type(odd),
.table-hover tbody tr:hover {
    background: rgba(0,217,255,0.04);
}
.table tbody tr:hover { background: rgba(0,217,255,0.08); }

/* podium colors on scoreboard */
.table tbody tr:nth-child(1) td:first-child { color: var(--lh-gold); font-weight: 800; }
.table tbody tr:nth-child(2) td:first-child { color: #d1d5db; font-weight: 700; }
.table tbody tr:nth-child(3) td:first-child { color: #c2410c; font-weight: 700; }

/* ─── badges ────────────────────────────────────────────────────────────── */
.badge {
    border-radius: 3px;
    font-weight: 600;
    padding: 0.25em 0.5em;
    letter-spacing: 0.02em;
}
.badge-primary { background: var(--lh-red-soft); color: var(--lh-red); border: 1px solid var(--lh-red); }
.badge-warning { background: rgba(251,191,36,0.15); color: var(--lh-gold); border: 1px solid var(--lh-gold); }
.badge-success { background: rgba(250,204,21,0.15); color: var(--lh-green); border: 1px solid var(--lh-green); }
.badge-danger  { background: rgba(239,68,68,0.15);  color: var(--lh-red);  border: 1px solid var(--lh-red);  }

/* ─── footer ────────────────────────────────────────────────────────────── */
.footer {
    margin-top: 4rem;
    padding: 2.5rem 0 1.5rem;
    background: var(--lh-bg-soft);
    border-top: 1px solid var(--lh-border);
}
.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}
.footer-brand img { height: 28px; opacity: 0.7; transition: opacity .15s; }
.footer-brand img:hover { opacity: 1; }
.footer .small, .footer small {
    color: var(--lh-text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    display: block;
    margin-top: 0.35rem;
}
.footer .footer-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 0.85rem;
    color: var(--lh-text-muted);
    line-height: 1.5;
}
.footer .footer-meta a { color: var(--lh-red); font-weight: 500; }
.footer .footer-meta a:hover { color: var(--lh-red-hi); }

/* ─── modals (challenge popup) ──────────────────────────────────────────── */
.modal-content { box-shadow: 0 12px 40px rgba(0,0,0,0.6), 0 0 0 1px var(--lh-red-soft); }
.modal-header h6, .modal-header .modal-title {
    color: var(--lh-text);
    font-weight: 800;
}
.modal-header .challenge-name::before { content: "> "; color: var(--lh-red); }
.modal .challenge-value { color: var(--lh-gold); font-weight: 700; }
.modal .challenge-category { color: var(--lh-red); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.75rem; }
.modal-body .challenge-desc { color: var(--lh-text); line-height: 1.65; }
.modal-body code { background: var(--lh-bg); padding: 2px 6px; border-radius: 2px; color: var(--lh-gold); }
.modal-body pre {
    background: var(--lh-bg);
    border: 1px solid var(--lh-border);
    border-radius: 4px;
    padding: 1rem;
    color: var(--lh-text);
}

/* ─── alerts / notifications ────────────────────────────────────────────── */
.alert {
    background: var(--lh-bg-card);
    border: 1px solid var(--lh-border);
    color: var(--lh-text);
    border-radius: 4px;
}
.alert-info    { border-left: 3px solid var(--lh-red); }
.alert-warning { border-left: 3px solid var(--lh-gold); }
.alert-success { border-left: 3px solid var(--lh-green); }
.alert-danger  { border-left: 3px solid var(--lh-red); }

/* ─── login / register forms ────────────────────────────────────────────── */
.col-md-6.offset-md-3, .col-lg-6.offset-lg-3 { padding-top: 4rem; }
.col-md-6.offset-md-3 h3 {
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(90deg, var(--lh-red), var(--lh-gold));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 900;
    letter-spacing: -0.02em;
}

/* ─── glitch hover effect for headings (subtle) ─────────────────────────── */
.lh-glitch { position: relative; display: inline-block; }
.lh-glitch::before, .lh-glitch::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity .1s;
}
.lh-glitch:hover::before {
    color: var(--lh-red);
    transform: translate(-1px, -1px);
    opacity: 0.7;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}
.lh-glitch:hover::after {
    color: var(--lh-gold);
    transform: translate(1px, 1px);
    opacity: 0.7;
    clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}

/* ─── scrollbar ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--lh-bg); }
::-webkit-scrollbar-thumb { background: var(--lh-border-hi); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--lh-red); }

/* ─── responsive nav adjustments ────────────────────────────────────────── */
@media (max-width: 768px) {
    .jumbotron { padding: 2rem 1rem; margin-top: 3.5rem; }
    .footer-inner { flex-direction: column; text-align: center; }
    .footer .footer-meta { align-items: center; }
}

/* ─── accessibility + form states ────────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--lh-red) !important;
    outline-offset: 2px;
    border-radius: 2px;
}
.btn:focus-visible, .nav-link:focus-visible, .challenge-button:focus-visible {
    outline: 2px solid var(--lh-red) !important;
    outline-offset: 2px;
}
/* Form control focus + valid/invalid — override Bootstrap green/red */
.form-control:focus, .custom-select:focus, select.form-control:focus, textarea.form-control:focus {
    border-color: var(--lh-red) !important;
    box-shadow: 0 0 0 3px rgba(214, 51, 22, 0.18) !important;
    outline: none !important;
}
/* Override Bootstrap's native :valid green / :invalid red border on form-control
   — applies even WITHOUT .was-validated parent because some pages don't use that flow */
.form-control:valid, .form-control:invalid,
.form-control.is-valid, .form-control.is-invalid,
.was-validated .form-control:valid, .was-validated .form-control:invalid {
    border-color: var(--lh-border) !important;
    background-image: none !important;
    padding-right: 0.75rem !important;
    box-shadow: none !important;
}
.form-control:focus:valid, .form-control:focus:invalid,
.was-validated .form-control:focus:valid, .was-validated .form-control:focus:invalid {
    border-color: var(--lh-red) !important;
    box-shadow: 0 0 0 3px rgba(214, 51, 22, 0.18) !important;
}
.was-validated .form-control:invalid, .form-control.is-invalid {
    border-color: var(--lh-red-bright) !important;
}
.invalid-feedback { color: var(--lh-red-bright) !important; }
.valid-feedback { color: var(--lh-yellow) !important; }

/* Bootstrap nav-pills (Settings sidebar) — make active pill orange not bright blue */
.nav-pills .nav-link {
    color: var(--lh-text-muted) !important;
    background: transparent !important;
    border-radius: 4px;
}
.nav-pills .nav-link:hover { background: var(--lh-bg-soft) !important; color: var(--lh-text) !important; }
.nav-pills .nav-link.active, .nav-pills .show > .nav-link {
    background: var(--lh-red) !important;
    color: #fff !important;
}

/* Custom-select (Bootstrap select dropdown) — match theme */
.custom-select, select.form-control {
    background: var(--lh-bg-soft) !important;
    color: var(--lh-text) !important;
    border-color: var(--lh-border) !important;
}

/* Scoreboard empty state — give it some life */
.scoreboard-table-empty,
.container:has(> .row > .col-md-12 > .text-center) > .row > .col-md-12 > .text-center {
    /* Match the "No solves yet" container CTFd renders */
}

/* ─── category headers (challenges page) — visual rhythm ────────────────── */
.category-header h3 {
    font-size: 1.05rem !important;
    color: var(--lh-text) !important;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800 !important;
    padding: 10px 16px !important;
    background: linear-gradient(90deg, rgba(182,32,32,0.12), transparent 70%);
    border-left: 4px solid var(--lh-red) !important;
    margin: 0 0 8px !important;
}
#challenges-board .pt-5 { padding-top: 2rem !important; margin-top: 1rem; }
#challenges-board .pt-5:first-child { padding-top: 1rem !important; margin-top: 0; }

/* ─── jumbotron — tighter on inner pages ────────────────────────────────── */
body:not(.home) .jumbotron {
    padding: 2rem 2rem 1.5rem !important;
    margin-top: 4rem !important;
}
body:not(.home) .jumbotron h1 {
    font-size: 1.8rem !important;
}

/* ─── modal challenge styling — TRUST Bootstrap stacking, only theme colors ── */
.modal-backdrop, .modal-backdrop.show { background-color: #000 !important; opacity: 0.88 !important; }
/* DO NOT override .modal pointer-events / overflow — leaves Bootstrap defaults intact so .modal-content gets clicks */
.modal-dialog { max-width: 1100px !important; margin: 5vh auto !important; }
.modal .modal-content {
    background: #3a3a48 !important;
    color: #f5f0e2 !important;
    border: 1px solid #5a5a70 !important;
    box-shadow: 0 24px 60px rgba(0,0,0,0.85);
}
.modal .modal-body {
    /* Bootstrap default: modal-dialog-scrollable handles max-height + overflow.
       For non-scrollable dialogs, set max-height so long descriptions scroll. */
    max-height: 80vh !important;
    overflow-y: auto !important;
    overscroll-behavior: contain !important;
    color: #f5f0e2 !important;
    padding: 1.5rem 2rem !important;
    background: #3a3a48 !important;
}
/* #challenge is nested inside .modal-body — only the outer container scrolls */
.modal #challenge {
    max-height: none !important;
    overflow: visible !important;
    color: var(--lh-text) !important;
}
.modal h2.challenge-name { color: #ffffff !important; font-weight: 800 !important; font-size: 1.6rem !important; }
.modal h3.challenge-value { color: var(--lh-yellow) !important; font-weight: 700 !important; font-size: 1.2rem !important; }
.modal .challenge-desc, .modal .challenge-desc p {
    color: #ffffff !important;
    line-height: 1.75 !important;
    font-size: 1rem !important;
}
.modal .challenge-desc h1, .modal .challenge-desc h2, .modal .challenge-desc h3 { color: var(--lh-red) !important; }
.modal .challenge-desc a { color: var(--lh-red-bright) !important; text-decoration: underline; }
.modal pre {
    background: #0a0e1c !important;
    color: #fff1d6 !important;
    border: 1px solid var(--lh-border) !important;
    border-radius: 4px;
    padding: 1rem !important;
    overflow-x: auto !important;
}
.modal code {
    background: rgba(250,204,21,0.10) !important;
    color: var(--lh-yellow) !important;
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
}
.modal pre code { background: transparent !important; padding: 0; color: inherit !important; }
/* scrollbar inside modal */
.modal .modal-body::-webkit-scrollbar,
.modal #challenge::-webkit-scrollbar { width: 10px; }
.modal .modal-body::-webkit-scrollbar-thumb,
.modal #challenge::-webkit-scrollbar-thumb { background: var(--lh-border-hi); border-radius: 4px; }
.modal .modal-body::-webkit-scrollbar-thumb:hover,
.modal #challenge::-webkit-scrollbar-thumb:hover { background: var(--lh-red); }

/* ─── primary button — make sure text on red is readable ────────────────── */
.btn-primary, .btn-danger {
    background: var(--lh-red) !important;
    border-color: var(--lh-red) !important;
    color: #fff !important;
    font-weight: 600;
}
.btn-primary:hover, .btn-danger:hover {
    background: var(--lh-red-hi) !important;
    border-color: var(--lh-red-hi) !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(244,90,42,0.35);
}

/* ─── horizontal scrollbar in navbar (when many items) ──────────────────── */
.navbar .navbar-collapse::-webkit-scrollbar { height: 4px; }
.navbar .navbar-collapse::-webkit-scrollbar-thumb { background: var(--lh-border-hi); }

/* ─── profile/scoreboard ECharts canvases — desaturate + shift toward warm ── */
/* CTFd uses ECharts bundled (not exposed globally), so we can't override
   colors via JS. Use a CSS filter to tone down the neon defaults. */
canvas { filter: saturate(0.55) hue-rotate(-40deg) brightness(0.95) contrast(1.05); }
/* Don't filter the canvases that are part of the course-dashboard SVG ring — those are intentionally orange via our CSS */
.cd-ring-svg, .cd-ring-svg * { filter: none !important; }

/* ─── LANDING PAGE — epita-style layout, dark+orange palette ─────────────── */
.homepage-hero {
    text-align: center;
    padding: 10vh 20px 3rem;
}
.homepage-hero .hero-inner {
    max-width: 600px;     /* matches epita */
    margin: 0 auto;
}


/* JS-rendered animated mark: "[ leHACK ]█" — typewriter + occasional glitch */
#lehack-hero-mark {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}
.lh-mark {
    font-family: 'JetBrains Mono', 'Fira Code', 'Menlo', monospace;
    font-weight: 800;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: baseline;
    gap: 0.15em;
    filter: drop-shadow(0 0 32px rgba(214, 51, 22, 0.45));
}
.lh-mark .lh-bracket { color: var(--lh-red); font-weight: 700; }
.lh-mark .lh-word {
    color: var(--lh-text);
    display: inline-flex;
    align-items: baseline;
    transition: filter .05s linear, transform .05s linear;
}
.lh-mark .lh-word.lh-glitch {
    filter: drop-shadow(2px 0 0 var(--lh-red)) drop-shadow(-2px 0 0 var(--lh-text-muted));
    transform: translateX(0.5px) skewX(-2deg);
}
.lh-mark .lh-cursor { color: var(--lh-red); margin-left: 2px; animation: lh-blink 1s steps(2, end) infinite; }
@keyframes lh-blink { 50% { opacity: 0; } }
.homepage-hero .hero-title {
    font-size: 2.2rem !important;
    font-weight: 300 !important;    /* light weight like epita */
    color: var(--lh-text) !important;
    letter-spacing: -0.03em !important;
    margin: 0 0 0.35rem !important;
    padding: 0 !important;
    border: none !important;
    text-transform: none !important;
    line-height: 1.2 !important;
}
.homepage-hero .hero-subtitle {
    font-size: 0.95rem !important;
    font-weight: 400 !important;
    color: var(--lh-text-dim) !important;
    letter-spacing: 0.02em !important;
    margin: 0 !important;
    text-transform: none !important;
    font-family: 'Inter', sans-serif !important;
}
.homepage-hero .hero-divider {
    width: 48px;
    height: 2px;
    background: var(--lh-red) !important;
    margin: 1.5rem auto;
    border: none;
    border-radius: 1px;
}
.homepage-hero .hero-desc {
    font-size: 1rem !important;
    font-weight: 400 !important;
    color: var(--lh-text-muted) !important;
    line-height: 1.7 !important;
    margin: 0 0 2rem !important;
    text-align: center;
}
.homepage-hero .hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;     /* matches epita */
    border-radius: 6px;     /* matches epita radius-sm */
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none !important;
    transition: all .15s ease;
    border: 1px solid transparent;
    letter-spacing: 0.02em;
}
.hero-btn.hero-btn-primary {
    background: var(--lh-red) !important;
    color: #fff !important;
    border-color: var(--lh-red) !important;
    box-shadow: 0 4px 14px rgba(214,51,22,0.30);
}
.hero-btn.hero-btn-primary:hover {
    background: var(--lh-red-hi) !important;
    border-color: var(--lh-red-hi) !important;
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(244,90,42,0.40);
}
.hero-btn.hero-btn-secondary {
    background: var(--lh-bg-soft) !important;
    color: var(--lh-text) !important;
    border-color: var(--lh-border-hi) !important;
}
.hero-btn.hero-btn-secondary:hover {
    background: var(--lh-bg-card) !important;
    color: var(--lh-yellow) !important;
    border-color: var(--lh-yellow) !important;
    transform: translateY(-1px);
}

/* ── feature cards row — epita layout, dark/orange palette ── */
.homepage-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 880px;       /* matches epita */
    margin: 0 auto 3rem;
    padding: 0 20px;
}
.hp-card {
    background: var(--lh-bg-card) !important;
    border: 1px solid var(--lh-border) !important;
    border-radius: 14px;    /* matches epita radius-lg */
    padding: 24px 20px;
    text-align: center;
    transition: all .15s ease;
    position: relative;
    overflow: hidden;
}
.hp-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: var(--lh-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
}
.hp-card:hover {
    border-color: var(--lh-red) !important;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(214,51,22,0.22);
}
.hp-card:hover::before { transform: scaleX(1); }
.hp-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;     /* matches epita radius-md */
    background: var(--lh-red-soft) !important;
    color: var(--lh-red) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1rem;
}
.hp-card-icon i { color: var(--lh-red) !important; }
.hp-card h3 {
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    color: var(--lh-text) !important;
    margin: 0 0 6px !important;
    padding: 0 !important;
    border: none !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.hp-card p {
    font-size: 0.8rem !important;
    color: var(--lh-text-dim) !important;
    line-height: 1.55 !important;
    margin: 0 !important;
}

/* ── homepage footer row ── */
.homepage-footer-row {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 20px;
    border-top: 1px solid var(--lh-border);
}
.homepage-footer-row p { color: var(--lh-text-dim) !important; font-size: 0.85rem; margin: 0 0 0.75rem; }
.homepage-footer-row a { color: var(--lh-text-muted) !important; }
.homepage-footer-row a:hover { color: var(--lh-red) !important; }
.hero-socials {
    display: flex;
    gap: 18px;
    justify-content: center;
    margin-top: 0.75rem;
}
.hero-socials a { color: var(--lh-text-dim) !important; font-size: 1.1rem; transition: color .12s ease; }
.hero-socials a:hover { color: var(--lh-red) !important; }

/* responsive */
@media (max-width: 880px) { .homepage-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .homepage-cards { grid-template-columns: 1fr; } }

/* ─── COURSE DASHBOARD overrides ─── */
/* theme_footer ships a 30KB course-dashboard CSS designed for light theme.
   These overrides re-skin it to our dark palette without rewriting the CSS. */
.course-dashboard { color: var(--lh-text) !important; }
.course-dashboard .cd-card {
    background: var(--lh-bg-card) !important;
    border-color: var(--lh-border) !important;
}
.course-dashboard .cd-card-name { color: var(--lh-text) !important; }
.course-dashboard .cd-card-number { color: var(--lh-text-dim) !important; }
.course-dashboard .cd-card-icon {
    background: var(--lh-red-soft) !important;
    color: var(--lh-red) !important;
}
/* Complete: subtle dimmed amber bar, NOT bright yellow */
.course-dashboard .cd-card.cd-complete::before {
    background: linear-gradient(90deg, #a37a08, transparent) !important;
}
.course-dashboard .cd-card.cd-complete .cd-progress-fill {
    background: #a37a08 !important;
}
.course-dashboard .cd-card.cd-started::before,
.course-dashboard .cd-progress-fill {
    background: linear-gradient(90deg, var(--lh-red), var(--lh-red-hi)) !important;
}
/* Complete card border + badge: muted amber, not bright yellow */
.course-dashboard .cd-card.cd-complete {
    border-color: #6e5505 !important;
}
.course-dashboard .cd-card.cd-complete .cd-card-icon {
    background: rgba(163, 122, 8, 0.18) !important;
    color: #d4a017 !important;
}
.course-dashboard .cd-badge-complete {
    background: rgba(214, 51, 22, 0.18) !important;
    color: var(--lh-yellow) !important;
    border: 1px solid rgba(250, 204, 21, 0.4) !important;
    font-weight: 600 !important;
}
.course-dashboard .cd-card::before { background: var(--lh-border) !important; }
.course-dashboard .cd-card:hover {
    box-shadow: 0 8px 24px rgba(214, 51, 22, 0.20) !important;
    border-color: var(--lh-red) !important;
}
.course-dashboard .cd-progress-bar { background: var(--lh-bg-soft) !important; }
.course-dashboard .cd-progress-count { color: var(--lh-text-muted) !important; }
.course-dashboard .cd-progress-xp { color: var(--lh-red-hi) !important; }
/* Stats panel — slightly more subtle */
.course-dashboard .cd-stats-panel {
    background: var(--lh-bg-card) !important;
    border: 1px solid var(--lh-border) !important;
}
.course-dashboard .cd-stats-info, .course-dashboard .cd-stat-value,
.course-dashboard .cd-ring-label, .course-dashboard .cd-level-title { color: var(--lh-text) !important; }
.course-dashboard .cd-stat-label, .course-dashboard .cd-ring-sub,
.course-dashboard .cd-level-hint { color: var(--lh-text-muted) !important; }
.course-dashboard .cd-ring-bg { stroke: var(--lh-border) !important; }
.course-dashboard .cd-ring-fg { stroke: var(--lh-red) !important; }
.course-dashboard .cd-stat-icon.xp { background: var(--lh-red-soft) !important; color: var(--lh-red) !important; }
.course-dashboard .cd-stat-icon.level { background: rgba(163,122,8,0.18) !important; color: #d4a017 !important; }
.course-dashboard .cd-stat-icon.solved { background: var(--lh-red-soft) !important; color: var(--lh-red-hi) !important; }
.course-dashboard .cd-level-bar-fill {
    background: linear-gradient(90deg, var(--lh-yellow), var(--lh-red)) !important;
}
/* Section heading */
.course-dashboard .cd-section-heading {
    color: var(--lh-text) !important;
    border-left-color: var(--lh-red) !important;
}
/* Buttons */
.course-dashboard .cd-btn-primary {
    background: var(--lh-red) !important; color: #fff !important;
}
.course-dashboard .cd-btn-primary:hover { background: var(--lh-red-hi) !important; }
.course-dashboard .cd-btn-secondary {
    background: var(--lh-bg-soft) !important;
    color: var(--lh-text-muted) !important;
    border-color: var(--lh-border) !important;
}
.course-dashboard .cd-btn-secondary:hover {
    background: var(--lh-bg) !important;
    color: var(--lh-red-hi) !important;
    border-color: var(--lh-red) !important;
}
/* Theory dropdown */
.course-dashboard .cd-theory-menu {
    background: var(--lh-bg-card) !important;
    border-color: var(--lh-border) !important;
}
.course-dashboard .cd-theory-menu a { color: var(--lh-text) !important; }
.course-dashboard .cd-theory-menu a:hover {
    background: var(--lh-bg-soft) !important;
    color: var(--lh-red-hi) !important;
}
.course-dashboard .cd-theory-menu a i { color: var(--lh-text-dim) !important; }
/* Login prompt */
.course-dashboard .cd-login-prompt {
    background: var(--lh-bg-soft) !important;
    border-color: var(--lh-border) !important;
    color: var(--lh-text-muted) !important;
}
/* Kill any leftover #fff text in course-dashboard (overrides inline style="color:#fff !important") via :where layered specificity won't work for inline.
   Solution: target the specific elements that have hardcoded white. */
.course-dashboard .cd-stat-value,
.course-dashboard .cd-level-title,
.course-dashboard .cd-ring-label,
.course-dashboard .cd-ring-pct,
.course-dashboard .cd-stats-info,
.course-dashboard .cd-stats-info * {
    color: var(--lh-text) !important;
}
/* Make sure the JS-injected inline "color:#fff" on buttons stays white (those are on red bg — needed for contrast) */
.course-dashboard .cd-btn-primary,
.course-dashboard .cd-btn-primary * { color: #fff !important; }