/* ============== Design System (CSS Variables) ============== */
:root {
  /* Brand palette */
  --brand-primary: #2563eb;   /* blue-600 */
  --brand-primary-600: #1d4ed8;
  --brand-primary-700: #1e40af;
  --brand-accent:  #22c55e;   /* green-500 */
  --brand-danger:  #ef4444;   /* red-500 */
  --brand-warning: #f59e0b;   /* amber-500 */
  --brand-surface: #f6f7fb;   /* page bg */
  --brand-card:    #ffffff;   /* card bg */
  --brand-border:  #e6e8ef; 
  --brand-text:    #1f2937;   /* gray-800 */
  --brand-muted:   #6b7280;   /* gray-500 */

  /* Radii & shadows */
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-sm: 0 2px 6px rgba(16, 24, 40, .06);
  --shadow-md: 0 6px 18px rgba(16, 24, 40, .08);
}

/* Dark mode tweaks */
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #0b1020;
    --brand-card: #0f172a;
    --brand-border: #1f2a44;
    --brand-text: #e5e7eb;
    --brand-muted: #94a3b8;
  }
}

/* ============== Base ============== */
html, body {
  height: 100%;
}

body { display: flex; 
    flex-direction: column; 
    min-height: 100vh; 
} /* falls nicht via Bootstrap-Klassen */
main { 
    flex: 1 0 auto; 
}                /* Fallback, falls base.html mal ohne flex-grow-1 gerendert wird */


body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--brand-text);
  background: var(--brand-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Global ribbon above content */
.app-ribbon {
  background: linear-gradient(90deg, rgba(37,99,235,.08), rgba(124,58,237,.08));
  color: var(--brand-muted);
  border-bottom: 1px solid var(--brand-border);
}

/* Spacing stack for flashed alerts */
.flash-stack > .alert + .alert {
  margin-top: .75rem;
}

/* ============== Navbar ============== */
/* Style your included navbar.html through the Bootstrap classes it uses. */
.navbar {
  /* soft gradient background */
  background: linear-gradient(90deg, var(--brand-primary), #7c3aed);
  box-shadow: var(--shadow-sm);
}

.navbar .navbar-brand,
.navbar .nav-link,
.navbar .navbar-text {
  color: #fff !important;
}

.navbar .nav-link.active,
.navbar .nav-link:focus,
.navbar .nav-link:hover {
  opacity: .92;
  text-decoration: none;
}

/* ============== Footer ============== */

.app-footer {
  background: linear-gradient(180deg, rgba(15,23,42,1) 0%, rgba(15,23,42,.9) 100%);
  color: #cbd5e1;
  padding: 1.25rem 0;
  margin-top: 0;                        /* zuvor evtl. 4rem -> entfernen für konsistentes Andocken */
  flex-shrink: 0;                       /* Footer nie schrumpfen lassen */
  border-top: 1px solid rgba(255,255,255,.08);
}

.app-footer .link-footer {
  color: #e2e8f0;
  text-decoration: none;
}

.app-footer .link-footer:hover {
  color: #fff;
  text-decoration: underline;
}

/* ============== Cards / Containers ============== */
.container > .card,
.container .content-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ============== Headings ============== */
h1, .h1 {
  font-weight: 700;
  letter-spacing: .2px;
}

h2, .h2 {
  font-weight: 600;
}

/* ============== Forms ============== */
.form-control {
  border-radius: var(--radius-md);
  border: 1px solid var(--brand-border);
  background: var(--brand-card);
}

.form-control:focus {
  box-shadow: 0 0 0 .25rem rgba(37, 99, 235, .15);
  border-color: var(--brand-primary);
}

/* ============== Buttons (Bootstrap variable overrides) ============== */
.btn {
  border-radius: 12px;
  font-weight: 600;
  letter-spacing: .2px;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  --bs-btn-bg: var(--brand-primary);
  --bs-btn-border-color: var(--brand-primary);
  --bs-btn-hover-bg: var(--brand-primary-600);
  --bs-btn-hover-border-color: var(--brand-primary-600);
  --bs-btn-active-bg: var(--brand-primary-700);
  --bs-btn-active-border-color: var(--brand-primary-700);
}

.btn-success {
  --bs-btn-bg: var(--brand-accent);
  --bs-btn-border-color: var(--brand-accent);
  --bs-btn-hover-bg: #16a34a;
  --bs-btn-hover-border-color: #16a34a;
}

.btn-danger {
  --bs-btn-bg: var(--brand-danger);
  --bs-btn-border-color: var(--brand-danger);
  --bs-btn-hover-bg: #dc2626;
  --bs-btn-hover-border-color: #dc2626;
}

.btn-outline-secondary {
  --bs-btn-color: var(--brand-muted);
  --bs-btn-border-color: var(--brand-border);
  --bs-btn-hover-bg: #eef2ff;
  --bs-btn-hover-color: var(--brand-text);
  --bs-btn-hover-border-color: var(--brand-primary);
}

/* ============== Tables ============== */
.table {
  --bs-table-color: inherit;
  --bs-table-bg: var(--brand-card);
  --bs-table-striped-bg: rgba(2, 8, 23, .03);
  --bs-table-hover-bg: rgba(37, 99, 235, .06);
  border-color: var(--brand-border);
}

.table thead.table-dark {
  background: linear-gradient(90deg, var(--brand-primary), #7c3aed);
  color: #fff;
  border-color: transparent;
}


.table thead th {
  border: none !important;
}

.table tr td, .table tr th {
  vertical-align: middle;
}

/* Rounded table container (use a wrapper with overflow hidden) */
.table-responsive, .table {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* ============== Badges & Alerts ============== */
.badge {
  border-radius: 10px;
  font-weight: 600;
}

.alert {
  border-radius: var(--radius-md);
  border: 1px solid var(--brand-border);
}

/* ============== Modals ============== */
.modal-content {
  border-radius: var(--radius-lg);
  border: 1px solid var(--brand-border);
  box-shadow: var(--shadow-md);
}

/* ============== Utilities ============== */
.bg-surface {
  background: radial-gradient(1200px 600px at 10% -10%, rgba(124, 58, 237, .10), transparent 50%),
              radial-gradient(1200px 600px at 90% 0%, rgba(37, 99, 235, .10), transparent 40%),
              var(--brand-surface);
}

.text-muted {
  color: var(--brand-muted) !important;
}