:root {
  --bg: #15161a;
  --surface: #1c1f24;
  --surface-2: #22262c;
  --border: #31363d;
  --text: #e9edf2;
  --muted: #b2bac6;
  --accent: #9dc1ff;
  --accent-2: #b7d0ff;
  --success: #0f6b3a;
  --warning: #8b6f00;
  --danger: #8a1c1c;
}

@font-face {
  font-family: "DepartureMono Nerd";
  src: url("fonts/DepartureMonoNerdFont-Regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Gohu Nerd";
  src: url("fonts/GohuFont14NerdFont-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Meslo Nerd";
  src: url("fonts/MesloLGLNerdFont-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "ProggyClean Nerd";
  src: url("fonts/ProggyCleanNerdFont-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Terminess Nerd";
  src: url("fonts/TerminessNerdFont-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

.body {
  background-color: var(--bg) !important;
  color: var(--text) !important;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background-color: var(--surface) !important;
  margin-bottom: 12px !important;
  padding: 4px 0;
}

.header .navbar {
  background-color: transparent !important;
  padding: 8px 0;
  min-height: 56px;
  align-items: center;
}

.header .navbar,
.header .container,
.header .container-fluid {
  padding-left: 16px;
  padding-right: 16px;
}

.header .navbar-collapse {
  width: 100%;
}

.header .d-flex.ml-auto {
  margin-left: auto !important;
}

.header .navbar-brand,
.header .nav-link {
  color: var(--text) !important;
}

.header .navbar-brand {
  padding: 0;
  font-size: 1.08rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
}

.header .navbar-toggler {
  padding: 4px 6px;
  border-color: var(--border);
}

.header .navbar-brand img {
  width: 28px;
  height: 28px;
}

.header .navbar-nav {
  align-items: center;
}

.header .nav-link {
  padding: 6px 10px;
  line-height: 1.1;
}

.header .nav-link:hover,
.header .nav-link:focus,
.header .navbar-brand:hover,
.header .navbar-brand:focus {
  color: var(--accent) !important;
}

.header .dropdown-menu {
  background-color: var(--surface-2);
  border: 1px solid var(--border);
}

.header .dropdown-item {
  color: var(--text);
}

.header .dropdown-item:hover,
.header .dropdown-item:focus {
  background-color: #2a3038;
  color: var(--accent);
}

.header .form-control {
  background-color: #1a1f26;
  border: 1px solid var(--border);
  color: var(--text);
  height: 36px;
  padding: 6px 10px;
  font-size: 0.95rem;
}

.header .form-control::placeholder {
  color: var(--muted);
}

.header .btn-outline-success {
  border-color: var(--border);
  color: var(--text);
  height: 36px;
  padding: 6px 12px;
  font-size: 0.95rem;
}

.header .btn-outline-success:hover,
.header .btn-outline-success:focus {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #0b0f1a;
}

.content {
  margin-bottom: 16px;
  margin-top: 12px;
  background-color: var(--surface-2) !important;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  padding: 18px 20px;
}

.content h1 a {
  color: var(--text);
  text-decoration: none;
}

.content h1 a:hover,
.content h1 a:focus {
  color: var(--accent);
  text-decoration: none;
}

.footer {
  width: 100%;
  background-color: var(--surface) !important;
  color: var(--muted);
  padding: 16px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.footer .footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  flex-direction: column;
  text-align: center;
}

.footer .socials {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer .social-link {
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.footer .social-link:hover,
.footer .social-link:focus {
  color: var(--accent);
  text-decoration: none;
}

.footer .social-icon {
  width: 26px;
  height: 26px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background-color: #1a1f26;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.footer .social-icon svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.footer .social-link:hover .social-icon,
.footer .social-link:focus .social-icon {
  border-color: var(--accent);
  color: var(--accent);
}

.about-hero {
  min-height: calc(100vh - 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.about-card {
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: 12px;
  max-width: 680px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.about-avatar {
  width: 86px;
  height: 86px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background-color: #1a1f26;
  padding: 10px;
  margin-bottom: 14px;
}

.about-card h1 {
  color: var(--accent-2);
  font-size: 2rem;
  margin-bottom: 12px;
}

.rotating-font {
  display: inline-block;
  animation: rotatingFont 15s infinite;
  font-size: 2.2rem;
  line-height: 1;
  vertical-align: baseline;
  white-space: nowrap;
  min-width: 8ch;
  letter-spacing: 0.02em;
}

@keyframes rotatingFont {
  0%,
  19% {
    font-family: "DepartureMono Nerd", monospace;
  }
  20%,
  39% {
    font-family: "Gohu Nerd", monospace;
  }
  40%,
  59% {
    font-family: "Meslo Nerd", monospace;
  }
  60%,
  79% {
    font-family: "ProggyClean Nerd", monospace;
  }
  80%,
  100% {
    font-family: "Terminess Nerd", monospace;
  }
}

.about-card p {
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.6;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}

.about-lead {
  font-size: 1.05rem;
}

.about-body {
  color: var(--muted);
}

.about-cta {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
}

.about-cta:hover,
.about-cta:focus {
  color: #0b0f1a;
  background-color: var(--accent);
  border-color: var(--accent);
  text-decoration: none;
}

.error-hero {
  min-height: calc(100vh - 160px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.error-card {
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: 12px;
  max-width: 560px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.error-code {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}

.error-body {
  color: var(--muted);
  margin-bottom: 14px;
  max-width: 46ch;
  margin-left: auto;
  margin-right: auto;
}

.badge {
  padding: 8px !important;
  border-radius: 7px !important;
  display: inline-block;
}

.badge-Easy {
  background-color: var(--success);
  border: 1px solid #2bd47b !important;
  color: #e8fff1;
}

.badge-Medium {
  background-color: var(--warning);
  border: 1px solid #f1c40f !important;
  color: #fff6d6;
}

.badge-Hard {
  background-color: var(--danger);
  border: 1px solid #ff7a7a !important;
  color: #ffecec;
}

.badge-ctf {
  background-color: rgb(0, 15, 149);
  border: 1px solid rgb(0, 89, 255) !important;
  color: #ffecec;
}

.badge-tech {
  background-color: #0f4c5c;
  border: 1px solid #2bb3c0 !important;
  color: #e6fbff;
}

.badge-random {
  background-color: #5b2a86;
  border: 1px solid #9b59b6 !important;
  color: #f5e9ff;
}

.badge-tag {
  background-color: #2b313a;
  border: 1px solid var(--border) !important;
  color: var(--text);
}

.markdown-body {
  background-color: var(--surface-2);
  width: 70%;
  margin: auto;
  padding: 20px;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  margin-bottom: 24px;
}

.markdown-body h1 {
  color: #6e93f0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.3em;
  border-bottom: none;
}

.markdown-body h2 {
  color: #7f9fe0;
  margin-top: 2rem;
  border-bottom: none;
}

.markdown-body h3 {
  color: #8fa6d6;
  border-bottom: none;
}

.markdown-body a {
  color: #7ab8ff;
  text-decoration: underline;
}

.markdown-body code {
  background-color: #1a1f26;
  padding: 0.2em 0.4em;
  border-radius: 6px;
  color: #9ef0b0;
}

.markdown-body p {
  color: var(--text);
}

.markdown-body hr {
  display: none;
}

.markdown-body blockquote {
  border-left: 4px solid var(--border);
  padding-left: 1em;
  color: var(--muted);
}