:root {
  --cn-primary: #7c3aed;
  --cn-primary-dim: #6d28d9;
  --cn-secondary: #9333ea;
  --cn-accent: #00f5ff;
  --cn-glow: #c026d3;
  --cn-bg: #050816;
  --cn-bg-2: #0a0f24;
  --cn-surface: #111827;
  --cn-surface-2: #161d36;
  --cn-border: #2a2152;
  --cn-text: #e5e7eb;
  --cn-muted: #9ca3c4;
  --cn-font: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  --bs-body-font-family: var(--cn-font);
  --bs-font-sans-serif: var(--cn-font);
  --bs-font-monospace: var(--cn-font);
}

body {
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgba(124, 58, 237, .22), transparent 60%),
    radial-gradient(40rem 25rem at -5% 30%, rgba(192, 38, 211, .10), transparent 60%),
    var(--cn-bg);
  background-attachment: fixed;
  color: var(--cn-text);
  min-height: 100vh;
  font-family: var(--cn-font);
}

.text-accent { color: var(--cn-accent) !important; }

h1, h2, h3, h4, h5, h6,
.card-header,
.modal-title {
  font-family: var(--cn-font);
  letter-spacing: .01em;
}

/* ------------------------------------------------------------- navbar */
.cn-navbar {
  background: rgba(10, 15, 36, .85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--cn-border);
}

.cn-brand { display: flex; flex-direction: column; line-height: 1.05; }

.cn-pro {
  background: linear-gradient(90deg, #a78bfa, var(--cn-glow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.cn-brand-name {
  font-family: var(--cn-font);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--cn-text);
}

.cn-brand-sub {
  font-family: var(--cn-font);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cn-muted);
}

.cn-navbar .nav-link {
  color: rgba(255, 255, 255, .7);
  font-family: var(--cn-font);
  font-size: .92rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.cn-navbar .nav-link { border-radius: 99px; padding-inline: 1rem; }
.cn-navbar .nav-link:hover { color: #fff; }

.cn-navbar .nav-link.active {
  color: #fff;
  background: rgba(124, 58, 237, .25);
  box-shadow: inset 0 0 0 1px rgba(139, 92, 246, .45);
}

/* -------------------------------------------------------------- cards */
.card {
  background: var(--cn-surface);
  border: 1px solid var(--cn-border);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, .08), 0 12px 30px rgba(0, 0, 0, .45);
  border-radius: .75rem;
}

.card-header {
  background: var(--cn-surface-2);
  border-bottom: 1px solid var(--cn-border);
  font-weight: 600;
  color: var(--cn-text);
}

label.required::after {
  content: " *";
  color: var(--cn-accent);
}

/* --------------------------------------------------------- form input */
.form-control,
.form-select {
  background-color: var(--cn-bg-2);
  border-color: var(--cn-border);
  color: var(--cn-text);
}

.form-control:focus,
.form-select:focus {
  background-color: var(--cn-bg-2);
  color: var(--cn-text);
  border-color: var(--cn-primary);
  box-shadow: 0 0 0 .2rem rgba(124, 58, 237, .3);
}

.form-control::placeholder { color: #5f6673; }

/* ------------------------------------------------------------ buttons */
.btn { border-radius: 99px; }

.btn-primary {
  --bs-btn-bg: var(--cn-primary);
  --bs-btn-border-color: var(--cn-primary);
  --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--cn-secondary);
  --bs-btn-hover-border-color: var(--cn-secondary);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: var(--cn-primary-dim);
  --bs-btn-active-border-color: var(--cn-primary-dim);
  --bs-btn-active-color: #fff;
  --bs-btn-disabled-bg: #3b2a73;
  --bs-btn-disabled-border-color: #3b2a73;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(124, 58, 237, .35);
}

.btn-outline-primary {
  --bs-btn-color: #c4b5fd;
  --bs-btn-border-color: rgba(139, 92, 246, .55);
  --bs-btn-hover-bg: var(--cn-primary);
  --bs-btn-hover-border-color: var(--cn-primary);
  --bs-btn-hover-color: #fff;
  --bs-btn-active-bg: var(--cn-primary);
  --bs-btn-active-border-color: var(--cn-primary);
  --bs-btn-active-color: #fff;
}

.btn-outline-secondary {
  --bs-btn-color: #c7cbe0;
  --bs-btn-border-color: rgba(139, 92, 246, .35);
  --bs-btn-hover-bg: rgba(124, 58, 237, .25);
  --bs-btn-hover-border-color: rgba(139, 92, 246, .6);
  --bs-btn-hover-color: #fff;
}

.badge-serial {
  background: linear-gradient(90deg, var(--cn-primary), var(--cn-glow));
  color: #fff;
  font-family: var(--cn-font);
}

/* ------------------------------------------------------------- tables */
.table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--cn-text);
  --bs-table-border-color: var(--cn-border);
  --bs-table-hover-bg: rgba(124, 58, 237, .10);
  --bs-table-hover-color: var(--cn-text);
}

.table thead th {
  white-space: nowrap;
  background: var(--cn-surface-2);
  font-family: var(--cn-font);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--cn-accent);
  border-bottom: 1px solid var(--cn-border);
}

.table td { vertical-align: middle; }

/* ------------------------------------------------------------ preview */
.preview-box {
  white-space: pre-wrap;
  word-break: break-word;
  background: #0a0f24;
  border: 1px dashed rgba(139, 92, 246, .45);
  border-radius: .5rem;
  padding: 1rem;
  min-height: 120px;
  font-family: var(--cn-font);
  font-size: .9rem;
  line-height: 1.55;
  color: #e5e7eb;
}

.preview-box.empty {
  min-height: 320px;
  background: var(--cn-bg-2);
  border-color: var(--cn-border);
  color: var(--cn-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

code { color: var(--cn-accent); }

.send-steps { color: var(--cn-muted); }
.send-steps kbd { background: var(--cn-surface-2); color: var(--cn-text); border: 1px solid var(--cn-border); }

.btn-check:checked + .btn-outline-primary {
  color: #fff;
  background: linear-gradient(90deg, var(--cn-primary), var(--cn-secondary));
  border-color: var(--cn-primary);
  box-shadow: 0 0 18px rgba(124, 58, 237, .4);
}

.modal-content {
  background: var(--cn-surface);
  border: 1px solid var(--cn-border);
}

hr { border-color: var(--cn-border); opacity: 1; }

@media (max-width: 767.98px) {
  .table-responsive { font-size: .875rem; }
}