@import url("https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap");

:root {
  --bs-font-sans: "Be Vietnam Pro", "Plus Jakarta Sans", "Inter", sans-serif;
  --bs-font-mono: "Space Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --bs-color-primary: #3b82f6;
  --bs-color-primary-strong: #1e40af;
  --bs-color-secondary: #4f8ef7;
  --bs-color-accent: #f97316;
  --bs-color-success: #10b981;
  --bs-color-danger: #ef4444;
  --bs-color-warning: #f59e0b;
  --bs-color-bg: #0f172a;
  --bs-color-bg-deep: #0d0f18;
  --bs-color-surface: #151825;
  --bs-color-surface-2: #1e293b;
  --bs-color-border: #2a2f4a;
  --bs-color-text: #e6e9f4;
  --bs-color-text-muted: #94a3b8;
  --bs-color-white: #fff;

  --bs-fs-xs: 11px;
  --bs-fs-sm: 13px;
  --bs-fs-md: 14px;
  --bs-fs-lg: 20px;
  --bs-fs-xl: 24px;
  --bs-fs-2xl: 30px;
  --bs-fs-3xl: 40px;

  --bs-space-1: 4px;
  --bs-space-2: 8px;
  --bs-space-3: 12px;
  --bs-space-4: 16px;
  --bs-space-5: 20px;
  --bs-space-6: 24px;
  --bs-space-8: 32px;

  --bs-radius-sm: 8px;
  --bs-radius-md: 12px;
  --bs-radius-lg: 20px;
  --bs-radius-pill: 999px;

  --bs-shadow-sm: 0 4px 12px rgba(59, 130, 246, 0.3);
  --bs-shadow-md: 0 8px 24px rgba(59, 130, 246, 0.2);
  --bs-shadow-lg: 0 25px 60px rgba(0, 0, 0, 0.5);

  --bs-breakpoint-sm: 576px;
  --bs-breakpoint-md: 640px;
  --bs-breakpoint-lg: 1024px;

  --adv-primary: var(--bs-color-primary-strong);
  --adv-primary-light: var(--bs-color-primary);
  --adv-accent: var(--bs-color-accent);
  --adv-success: var(--bs-color-success);
  --adv-danger: var(--bs-color-danger);
  --adv-bg: var(--bs-color-bg);
  --adv-surface: var(--bs-color-surface-2);
  --adv-surface2: #273549;
  --adv-border: rgba(255, 255, 255, 0.08);
  --adv-text: #f1f5f9;
  --adv-text-muted: var(--bs-color-text-muted);
  --adv-radius: var(--bs-radius-lg);
  --adv-radius-sm: var(--bs-radius-sm);
  --adv-shadow: var(--bs-shadow-md);

  --ls-bg: var(--bs-color-bg-deep);
  --ls-surface: var(--bs-color-surface);
  --ls-surface2: #1e2235;
  --ls-border: var(--bs-color-border);
  --ls-accent: var(--bs-color-secondary);
  --ls-text: var(--bs-color-text);
  --ls-text-muted: #6b739e;
  --ls-radius: var(--bs-radius-lg);
  --ls-radius-sm: var(--bs-radius-sm);
  --ls-shadow: var(--bs-shadow-lg);

  --bg: var(--bs-color-bg-deep);
  --surface: var(--bs-color-surface);
  --surface2: #1e2235;
  --border: var(--bs-color-border);
  --accent: var(--bs-color-secondary);
  --success: #3ecf8e;
  --danger: #f75f5f;
  --warn: #f5a623;
  --text: var(--bs-color-text);
  --text-muted: #6b739e;
  --radius: var(--bs-radius-lg);
  --radius-sm: var(--bs-radius-sm);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);

  --sans: var(--bs-font-sans);
  --mono: var(--bs-font-mono);
}

.bs-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bs-space-4);
  flex-wrap: wrap;
  margin-bottom: var(--bs-space-6);
}

.bs-page-header.adv-topbar,
.bs-page-header.header {
  height: auto;
  background: transparent;
  border-bottom: 0;
}

.bs-page-header__brand {
  display: flex;
  align-items: center;
  gap: var(--bs-space-3);
  min-width: 0;
}

.bs-page-header__icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--bs-radius-md);
  color: var(--bs-color-white);
  background: linear-gradient(135deg, var(--bs-color-primary-strong), var(--bs-color-primary));
  box-shadow: var(--bs-shadow-sm);
  flex: 0 0 auto;
}

.bs-page-header__title {
  margin: 0;
  color: var(--bs-color-text);
  font-family: var(--bs-font-sans);
  font-size: var(--bs-fs-lg);
  font-weight: 700;
  line-height: 1.2;
}

.bs-page-header__subtitle {
  margin: 4px 0 0;
  color: var(--bs-color-text-muted);
  font-family: var(--bs-font-sans);
  font-size: var(--bs-fs-sm);
}

.bs-page-header__actions {
  display: flex;
  align-items: center;
  gap: var(--bs-space-2);
  flex-wrap: wrap;
}

.bs-header-btn {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bs-space-2);
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: var(--bs-radius-sm);
  padding: 8px 14px;
  color: var(--bs-color-text);
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--bs-font-sans);
  font-size: var(--bs-fs-sm);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.bs-header-btn:hover {
  color: var(--bs-color-white);
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.45);
  transform: translateY(-1px);
}

.bs-header-btn--primary {
  color: var(--bs-color-white);
  border-color: transparent;
  background: linear-gradient(135deg, var(--bs-color-primary-strong), var(--bs-color-primary));
  box-shadow: var(--bs-shadow-sm);
}

.bs-header-btn--danger {
  color: var(--bs-color-white);
  border-color: rgba(239, 68, 68, 0.45);
  background: rgba(239, 68, 68, 0.12);
}

@media (max-width: 640px) {
  .bs-page-header {
    align-items: stretch;
  }

  .bs-page-header__actions {
    width: 100%;
  }

  .bs-header-btn {
    flex: 1 1 auto;
  }
}