:root {
  --black-500: #05122b;
  --text-primary: #eff0f2;
  --text-secondary: #b6b9c2;
  --text-placeholder: #818595;
  --text-disabled: #444d60;
  --bg-brand: #e6007d;
  --bg-brand-glow: #ff1597;
  --bg-secondary: #121e36;
  --bg-tertiary: #1e2940;
  --neon: #16dffd;
  --neon-blue: rgba(60, 150, 255, 0.85);
  --border: #2a364b;
  --white: #f5f5f5;
  --danger: #ff6b9d;
  --ok: #7ee8b0;
  --serif: "Urbanist", system-ui, sans-serif;
  --sans: "Inter", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--sans);
  color: var(--text-primary);
  background: var(--black-500);
}

.bg-blue-lights {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 55% at 0% 40%, rgba(22, 223, 253, 0.22), transparent 58%),
    radial-gradient(ellipse 55% 45% at 100% 0%, rgba(230, 0, 125, 0.18), transparent 52%),
    radial-gradient(ellipse 50% 50% at 85% 100%, rgba(60, 150, 255, 0.16), transparent 55%);
}

.page-login,
.page-app {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
}

.eyebrow,
.card-kicker,
.lock,
.idx,
.who {
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  font-weight: 700;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.2rem 0 0.8rem;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1.02;
}

h2 {
  font-size: 1.7rem;
}

.title-accent {
  color: var(--neon);
  text-shadow: 0 0 18px rgba(22, 223, 253, 0.35);
}

.lede {
  max-width: 34rem;
  color: var(--text-secondary);
  line-height: 1.55;
  font-size: 1.05rem;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
  padding: 4.5rem 7vw;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.4rem;
  text-decoration: none;
}

.brand-mark img,
.brand-logo {
  width: 42px;
  height: 52px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(22, 223, 253, 0.35));
}

.login-story h1 {
  max-width: 12ch;
}

.challenge-preview {
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 0;
  max-width: 34rem;
  border-top: 1px solid var(--border);
}

.challenge-preview li {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--border);
}

.challenge-preview strong,
.challenge-card strong {
  display: block;
  font-family: var(--serif);
  font-weight: 700;
}

.challenge-preview em,
.challenge-card em {
  display: block;
  margin-top: 0.15rem;
  font-style: normal;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.lock {
  color: var(--bg-brand-glow);
}

.login-card {
  position: relative;
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 2.2rem 2rem 2rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(5, 18, 43, 0.45);
}

.login-card .card-kicker {
  color: var(--neon);
}

.login-card h2 {
  color: var(--text-primary);
}

.login-card form {
  display: grid;
  gap: 0.95rem;
}

.login-card label {
  display: grid;
  gap: 0.4rem;
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 700;
}

.login-card input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  padding: 0.7rem 0.1rem;
  font: 500 1.05rem var(--sans);
  color: var(--text-primary);
  text-transform: none;
  letter-spacing: 0;
}

.login-card input:focus {
  outline: none;
  border-bottom-color: var(--neon);
}

.login-card button,
.back,
.ghost {
  font-family: var(--serif);
  cursor: pointer;
}

.login-card button {
  margin-top: 0.4rem;
  border: 0;
  background: var(--bg-brand);
  color: white;
  border-radius: 8px;
  padding: 0.9rem 1.2rem;
  font-size: 1.05rem;
  font-weight: 700;
  box-shadow: inset 6px 8px 9px 0 var(--bg-brand-glow), inset -6px -8px 9px 0 var(--bg-brand-glow);
}

.login-card button:hover {
  filter: brightness(1.06);
}

.login-card button:disabled,
.login-card input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.login-card button.back-text {
  margin-top: 0.15rem;
  background: transparent;
  color: var(--text-secondary);
  padding: 0.35rem 0;
  font-weight: 700;
  box-shadow: none;
}

.login-card button.back-text:hover {
  background: transparent;
  color: var(--white);
  text-shadow: 0 0 12px var(--neon-blue);
  filter: none;
}

.challenge-q {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  text-transform: none;
  color: var(--neon);
}

.hp {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.qr-wrap {
  display: inline-block;
  background: #fff;
  border-radius: 12px;
  padding: 0.55rem;
  margin: 0.2rem 0 0.6rem;
}

.qr-wrap svg {
  display: block;
  width: 176px;
  height: 176px;
}

.secret-key {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  word-break: break-all;
  color: var(--text-secondary);
  margin: 0 0 1rem;
}

.recovery-list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem 1rem;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.flashes {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
}

.flash-error {
  color: var(--danger);
  font-size: 0.95rem;
}

.flash-ok {
  color: var(--ok);
  font-size: 0.95rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 6vw;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(5, 18, 43, 0.82);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
}

.brand:hover .brand-logo {
  filter: drop-shadow(0 0 9px rgba(22, 223, 253, 0.85)) drop-shadow(0 0 22px rgba(22, 223, 253, 0.68));
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-copy small {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.who {
  color: var(--text-secondary);
}

.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 0.55rem 0.95rem;
  text-decoration: none;
  font-weight: 700;
}

.ghost:hover {
  border-color: var(--neon);
  color: var(--white);
  text-shadow: 0 0 10px var(--neon-blue);
}

.app-main {
  padding: 3rem 6vw 5rem;
}

.challenge-grid {
  list-style: none;
  margin: 2.2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.challenge-card {
  display: grid;
  min-height: 220px;
  text-decoration: none;
  padding: 1.3rem 1.25rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(18, 30, 54, 0.82);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.challenge-card:hover {
  border-color: var(--neon);
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(22, 223, 253, 0.12);
}

.challenge-card .go {
  align-self: end;
  color: var(--neon);
  font-family: var(--serif);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.hello-main {
  max-width: 40rem;
}

.hello-mark {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin: 1.2rem 0 0.6rem;
  color: var(--neon);
  text-shadow: 0 0 22px rgba(22, 223, 253, 0.35);
}

.back {
  display: inline-block;
  margin-top: 1.4rem;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--bg-brand);
  padding-bottom: 0.15rem;
  font-family: var(--serif);
  font-weight: 700;
}

.back:hover {
  color: var(--white);
  text-shadow: 0 0 10px var(--neon-blue);
}

.admin-card {
  margin-top: 1.6rem;
  padding: 1.3rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(18, 30, 54, 0.82);
}

.admin-card h2 {
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

.admin-add,
.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: end;
}

.admin-add label,
.admin-card label {
  display: grid;
  gap: 0.35rem;
  font-family: var(--serif);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 700;
}

.admin-add input,
.inline-form input {
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--text-primary);
  font: 500 1rem var(--sans);
  padding: 0.45rem 0.1rem;
  min-width: 12rem;
}

.admin-add button,
.inline-form button {
  font-family: var(--serif);
  border: 0;
  background: var(--bg-brand);
  color: white;
  border-radius: 8px;
  padding: 0.55rem 0.95rem;
  cursor: pointer;
  font-weight: 700;
  box-shadow: inset 4px 5px 7px 0 var(--bg-brand-glow), inset -4px -5px 7px 0 var(--bg-brand-glow);
}

.inline-form button.danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(255, 107, 157, 0.45);
  box-shadow: none;
}

.hint {
  margin: 0.7rem 0 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.user-table-wrap {
  overflow-x: auto;
}

.user-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.user-table th {
  text-align: left;
  font-family: var(--serif);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.4rem 0.6rem 0.7rem 0;
}

.user-table td {
  padding: 0.85rem 0.6rem 0.85rem 0;
  border-top: 1px solid var(--border);
  vertical-align: top;
}

@media (max-width: 960px) {
  .login-shell {
    grid-template-columns: 1fr;
    gap: 2.2rem;
    padding: 2.4rem 1.25rem 3rem;
  }

  .challenge-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.6rem;
  }

  .topbar {
    padding: 0.85rem 1.25rem;
  }
}