:root {
  --app-bg: #f6f7fb;
  --app-bg2: #eef2ff;
  --card-bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: rgba(17, 24, 39, 0.12);
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.10);
  --radius: 14px;
  --brand: #8b5cf6;
}

html {
  font-size: 15px;
  position: relative;
  min-height: 100%;
}

@media (min-width: 992px) {
  html {
    font-size: 16px;
  }
}

body {
  margin-bottom: 60px;
  font-family: PlayfairDisplay, ui-serif, Georgia, "Times New Roman", serif;
  color: var(--text);
  background: radial-gradient(1000px 500px at 20% 0%, var(--app-bg2), transparent 60%),
              radial-gradient(900px 450px at 80% 10%, #ffe4e6, transparent 55%),
              var(--app-bg);
}

a {
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.15em;
}

.app-shell {
  max-width: 1100px;
}

.app-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Top nav */
.navbar .navbar-brand {
  font-weight: 700;
  letter-spacing: 0.2px;
  font-family: PlayfairDisplay, ui-serif, Georgia, "Times New Roman", serif;
}

.app-nav-link {
  font-weight: 600;
  letter-spacing: 0.2px;
  font-family: PlayfairDisplay, ui-serif, Georgia, "Times New Roman", serif;
  border-radius: 999px;
  padding-left: 12px;
  padding-right: 12px;
  color: var(--text) !important;
  transition: background-color 120ms ease, color 120ms ease;
}

.app-nav-link:hover {
  color: var(--brand) !important;
  background: rgba(139, 92, 246, 0.10);
}

.app-nav-link.active {
  color: var(--brand) !important;
  background: rgba(139, 92, 246, 0.14);
}

.app-nav-icon {
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1;
}

.app-title {
  letter-spacing: 0.2px;
}

.app-subtitle {
  color: var(--muted);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.15rem #fff, 0 0 0 0.35rem rgba(139, 92, 246, 0.25);
}

@media (max-width: 576px) {
  .btn {
    min-height: 44px;
  }
}

/* Global toast (top-right) */
.app-toast-host {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: min(420px, calc(100vw - 24px));
  pointer-events: none;
}

.app-toast {
  pointer-events: auto;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left-width: 6px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 10px 12px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.app-toast__title {
  font-weight: 700;
  margin: 0;
  font-size: .95rem;
  line-height: 1.25rem;
  color: var(--text);
}

.app-toast__msg {
  margin: 2px 0 0 0;
  font-size: .92rem;
  line-height: 1.25rem;
  color: var(--muted);
  word-break: break-word;
}

.app-toast__close {
  border: 0;
  background: transparent;
  font-size: 18px;
  line-height: 18px;
  padding: 4px 6px;
  opacity: .7;
}

.app-toast__close:hover {
  opacity: 1;
}

.app-toast--success { border-left-color: var(--bs-success); }
.app-toast--info { border-left-color: var(--bs-info); }
.app-toast--warning { border-left-color: var(--bs-warning); }
.app-toast--danger { border-left-color: var(--bs-danger); }