/* ================================================================
   DATENKERN LOGIN v4.0
   ================================================================ */

body.dk-login-page {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f0f2f7;
  color: #1e293b;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Subtle background pattern */
body.dk-login-page::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(224,36,36,.07) 0, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,20,147,.10) 0, transparent 50%);
  pointer-events: none;
}

/* ── Ambient orbs (subtle) ── */
.dk-login-ambient { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.dk-login-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: dk-float 18s ease infinite;
}
.dk-login-orb-1 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(224,36,36,.09), transparent 70%);
  top: -160px; right: -80px;
}
.dk-login-orb-2 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(255,20,147,.12), transparent 70%);
  bottom: -100px; left: -80px;
  animation-delay: -9s;
}
@keyframes dk-float {
  0%,100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(20px,-25px) scale(1.04); }
  66%      { transform: translate(-15px,15px) scale(0.97); }
}

/* ── Login wrap ── */
.dk-login-container {
  width: 100%;
  max-width: 400px;
  position: relative;
  z-index: 1;
}

/* ── Card ── */
.dk-login-card {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.09);
  border-radius: 18px;
  padding: 2.25rem 2.25rem 2rem;
  box-shadow: 0 4px 24px rgba(15,23,42,.09), 0 1px 4px rgba(15,23,42,.06);
  position: relative;
  overflow: hidden;
}
.dk-login-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #e02424, #b91c1c 60%, transparent);
}

/* ── Header ── */
.dk-login-header {
  display: flex;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.dk-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.dk-logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, #e02424, #991b1b);
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 10px rgba(224,36,36,.30);
}
.dk-logo-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.01em;
}

/* ── Titles ── */
.dk-login-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  text-align: center;
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}
.dk-login-subtitle {
  font-size: 0.8125rem;
  color: #64748b;
  text-align: center;
  margin-bottom: 1.75rem;
}

/* ── Alert ── */
.dk-alert {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid;
  font-size: 0.8125rem;
  margin-bottom: 1.25rem;
}
.dk-alert-danger {
  background: rgba(239,68,68,.07);
  border-color: rgba(239,68,68,.22);
  color: #991b1b;
}

/* ── Form ── */
.dk-login-form { display: flex; flex-direction: column; gap: 0; }

.dk-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1rem;
}
.dk-form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: #374151;
}
.dk-form-input {
  width: 100%;
  padding: 0.5625rem 0.875rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: #1e293b;
  background: #f8fafc;
  border: 1px solid rgba(15,23,42,.10);
  border-radius: 10px;
  transition: border-color 150ms ease, box-shadow 150ms ease, background 150ms ease;
  line-height: 1.4;
}
.dk-form-input::placeholder { color: #94a3b8; }
.dk-form-input:focus {
  outline: none;
  background: #fff;
  border-color: #e02424;
  box-shadow: 0 0 0 3px rgba(224,36,36,.10);
}

/* ── Buttons ── */
.dk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 150ms ease;
  font-family: inherit;
  text-decoration: none;
  line-height: 1;
}
.dk-btn-primary {
  background: linear-gradient(135deg, #e02424, #b91c1c);
  color: #fff;
  border-color: #b91c1c;
  box-shadow: 0 1px 4px rgba(224,36,36,.25);
}
.dk-btn-primary:hover {
  background: linear-gradient(135deg, #c81f1f, #991b1b);
  box-shadow: 0 4px 14px rgba(224,36,36,.30);
  transform: translateY(-1px);
}
.dk-btn-secondary {
  background: #f8fafc;
  color: #374151;
  border-color: rgba(15,23,42,.10);
}
.dk-btn-secondary:hover { background: #f1f5f9; }
.dk-btn-lg { padding: 0.75rem 1.25rem; font-size: 0.9375rem; }

/* ── Quick login section ── */
.dk-login-quick {
  background: #f8fafc;
  border: 1px solid rgba(15,23,42,.07);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1.25rem;
}
.dk-login-quick-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #94a3b8;
  margin-bottom: 0.5rem;
}
.dk-login-quick-hint {
  font-size: 0.75rem;
  color: #94a3b8;
  margin-bottom: 0.75rem;
}
.dk-login-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  font-size: 0.75rem;
  color: #94a3b8;
}
.dk-login-divider::before, .dk-login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(15,23,42,.07);
}
.dk-login-divider::before { content: ''; }
.dk-login-divider::after  { content: ''; }

/* ── Info box ── */
.dk-login-info {
  margin-top: 1.25rem;
  padding: 0.875rem 1rem;
  background: #f8fafc;
  border: 1px solid rgba(15,23,42,.06);
  border-radius: 10px;
  text-align: center;
}
.dk-login-info p {
  font-size: 0.75rem;
  color: #94a3b8;
  margin: 0;
}

/* ── Back link ── */
.dk-login-back {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.8125rem;
}
.dk-login-back a {
  color: #64748b;
  text-decoration: none;
  transition: color 150ms ease;
}
.dk-login-back a:hover { color: #e02424; }

/* ── Dark mode ── */
[data-theme="dark"] body.dk-login-page,
@media (prefers-color-scheme: dark) { body.dk-login-page { background: transparent; } }

[data-theme="dark"] body.dk-login-page {
  background: #07090f;
  color: #e2e8f0;
}
[data-theme="dark"] body.dk-login-page::before {
  background-image:
    radial-gradient(circle at 20% 20%, rgba(224,36,36,.12) 0, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255,20,147,.14) 0, transparent 50%);
}
[data-theme="dark"] .dk-login-card {
  background: #111827;
  border-color: rgba(255,255,255,.08);
  box-shadow: 0 4px 32px rgba(0,0,0,.45), 0 1px 6px rgba(0,0,0,.3);
}
[data-theme="dark"] .dk-logo-text { color: #f1f5f9; }
[data-theme="dark"] .dk-login-title { color: #f1f5f9; }
[data-theme="dark"] .dk-login-subtitle { color: #94a3b8; }
[data-theme="dark"] .dk-form-label { color: #cbd5e1; }
[data-theme="dark"] .dk-form-input {
  background: #1e2a3b;
  color: #f1f5f9;
  border-color: rgba(255,255,255,.10);
}
[data-theme="dark"] .dk-form-input::placeholder { color: #475569; }
[data-theme="dark"] .dk-form-input:focus {
  background: #1e2a3b;
  border-color: #e02424;
  box-shadow: 0 0 0 3px rgba(224,36,36,.15);
}
[data-theme="dark"] .dk-btn-secondary {
  background: #1e2a3b;
  color: #cbd5e1;
  border-color: rgba(255,255,255,.10);
}
[data-theme="dark"] .dk-btn-secondary:hover { background: #263348; }
[data-theme="dark"] .dk-login-quick {
  background: #1a2236;
  border-color: rgba(255,255,255,.07);
}
[data-theme="dark"] .dk-login-divider::before,
[data-theme="dark"] .dk-login-divider::after { background: rgba(255,255,255,.08); }
[data-theme="dark"] .dk-login-info {
  background: #1a2236;
  border-color: rgba(255,255,255,.06);
}
[data-theme="dark"] .dk-login-back a { color: #94a3b8; }
[data-theme="dark"] .dk-alert-danger {
  background: rgba(239,68,68,.12);
  border-color: rgba(239,68,68,.30);
  color: #fca5a5;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  body.dk-login-page { padding: 1rem; align-items: flex-start; padding-top: 2rem; }
  .dk-login-card { padding: 1.75rem 1.25rem; }
}