.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(139, 92, 246, 0.18), transparent 30%),
    linear-gradient(135deg, #f8fbff 0%, #eef4ff 45%, #f8fafc 100%);
  color: #0f172a;
}

.auth-layout {
  width: min(1200px, 100%);
  display: grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap: 1.5rem;
  align-items: stretch;
}

.auth-showcase,
.auth-panel {
  position: relative;
}

.auth-showcase {
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 28px;
  padding: 1.7rem;
  box-shadow: 0 30px 70px rgba(15, 23, 42, 0.18);
  overflow: hidden;
}

.auth-showcase::before {
  content: '';
  position: absolute;
  inset: -20% auto auto -10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.32), transparent 60%);
  pointer-events: none;
}

.logo-block {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.logo-badge {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  box-shadow: 0 18px 28px rgba(96, 165, 250, 0.25);
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.logo-badge svg {
  width: 100%;
  height: 100%;
}

.logo-name {
  letter-spacing: -0.06em;
}

.logo-name {
  color: #f8fafc;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo-block small {
  display: block;
  color: rgba(226, 232, 240, 0.8);
  font-size: 0.7rem;
}

.auth-showcase h1 {
  position: relative;
  z-index: 1;
  margin: 1rem 0 0.75rem;
  color: #f8fafc;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.06em;
}

.auth-lead {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0;
  color: rgba(226, 232, 240, 0.82);
  font-size: 1rem;
  line-height: 1.7;
}

.showcase-pills {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

.showcase-pills span {
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.22);
  color: #e2e8f0;
  font-size: 0.74rem;
  font-weight: 600;
}

.showcase-preview {
  position: relative;
  z-index: 1;
  margin-top: 1.5rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.preview-window {
  background: rgba(10, 16, 31, 0.82);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 22px;
  padding: 0.9rem;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.26);
  transform: scale(0.94);
  transform-origin: center;
}

.preview-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-blue { background: #60a5fa; }
.dot-violet { background: #a78bfa; }
.dot-emerald { background: #34d399; }

.preview-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  padding-top: 0.9rem;
}

.metric-pill {
  border-radius: 14px;
  padding: 0.7rem 0.8rem;
  border: 1px solid rgba(148, 163, 184, 0.15);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.metric-pill span {
  color: rgba(226, 232, 240, 0.75);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.metric-pill strong {
  color: #f8fafc;
  font-size: 1rem;
  letter-spacing: -0.04em;
}

.metric-income {
  background: rgba(16, 185, 129, 0.12);
}

.metric-expense {
  background: rgba(99, 102, 241, 0.1);
}

.preview-chart {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.5rem;
  height: 110px;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.75), rgba(15, 23, 42, 0.9));
  border-radius: 16px;
  border: 1px solid rgba(148, 163, 184, 0.15);
  padding: 0.8rem 0.75rem 0.6rem;
  margin-top: 0.9rem;
}

.preview-chart span {
  flex: 1;
  border-radius: 999px 999px 8px 8px;
  background: linear-gradient(180deg, #7dd3fc 0%, #60a5fa 40%, #8b5cf6 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.feature-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.6rem;
}

.feature-card {
  background: rgba(15, 23, 42, 0.38);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 18px;
  padding: 1rem 0.85rem;
}

.feature-icon {
  width: 2.3rem;
  height: 2.3rem;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.24), rgba(139, 92, 246, 0.24));
  font-size: 1.2rem;
}

.feature-card h3 {
  margin: 0.8rem 0 0.45rem;
  color: #f8fafc;
  font-size: 0.88rem;
}

.feature-card p {
  margin: 0;
  color: rgba(226, 232, 240, 0.76);
  font-size: 0.75rem;
  line-height: 1.6;
}

.auth-panel {
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  width: min(100%, 440px);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 246, 255, 0.9));
  border: 1px solid rgba(147, 197, 253, 0.28);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 22px 50px rgba(59, 130, 246, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
}

.auth-card-header {
  margin-bottom: 0.25rem;
}

.auth-card-kicker {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: #2563eb;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.10em;
  text-transform: uppercase;
}

.auth-card-header h2 {
  margin: 0;
  font-size: 1.7rem;
  color: #0f172a;
  letter-spacing: -0.04em;
}

.auth-card label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: #334155;
  font-size: 0.82rem;
  font-weight: 700;
}

.auth-card input {
  border: 1px solid #dbe3f0;
  border-radius: 12px;
  padding: 0.8rem 0.9rem;
  font: inherit;
  background: white;
  color: #0f172a;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.auth-card input:focus {
  outline: none;
  border-color: #60a5fa;
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.14);
}

.auth-error {
  border-radius: 12px;
  padding: 0.75rem 0.8rem;
  background: rgba(254, 226, 226, 0.8);
  border: 1px solid rgba(239, 68, 68, 0.18);
  color: #b91c1c;
  font-size: 0.8rem;
  font-weight: 600;
}

.auth-submit {
  width: 100%;
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.auth-note {
  background: rgba(239, 246, 255, 0.9);
  border: 1px solid rgba(147, 197, 253, 0.5);
  border-radius: 12px;
  padding: 0.75rem 0.8rem;
  color: #334155;
  font-size: 0.74rem;
  line-height: 1.6;
}

.auth-note strong {
  color: #0f172a;
}

.app-shell {
  min-height: 100vh;
  background: linear-gradient(180deg, #f8fafc 0%, #eef4ff 100%);
  color: #1f2937;
}

@media (max-width: 980px) {
  .auth-shell {
    padding: 1rem 0.75rem;
  }

  .auth-layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 0.9rem;
  }

  .auth-showcase {
    padding: 1rem 0.9rem 1.1rem;
    border-radius: 22px;
  }

  .auth-showcase h1 {
    font-size: clamp(1.7rem, 7vw, 2.4rem);
    margin-top: 0.7rem;
  }

  .auth-lead {
    font-size: 0.82rem;
    line-height: 1.55;
  }

  .showcase-pills {
    gap: 0.45rem;
    margin-top: 0.9rem;
  }

  .showcase-pills span {
    font-size: 0.68rem;
    padding: 0.38rem 0.55rem;
  }

  .showcase-preview {
    max-width: 420px;
    margin-top: 1rem;
  }

  .preview-window {
    transform: scale(0.9);
    transform-origin: center;
    padding: 0.7rem;
  }

  .preview-metrics {
    gap: 0.55rem;
  }

  .metric-pill {
    padding: 0.55rem 0.6rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 0.7rem;
    margin-top: 1.1rem;
  }

  .feature-card {
    padding: 0.8rem 0.7rem;
  }

  .feature-card p {
    font-size: 0.7rem;
  }

  .auth-card {
    padding: 1rem 0.9rem;
    gap: 0.7rem;
    border-radius: 18px;
  }

  .auth-card-header h2 {
    font-size: 1.3rem;
  }

  .auth-card label {
    font-size: 0.74rem;
  }

  .auth-card input {
    padding: 0.7rem 0.75rem;
    font-size: 0.8rem;
  }

  .auth-submit {
    padding: 0.75rem 0.9rem;
    font-size: 0.8rem;
  }

  .auth-note {
    font-size: 0.68rem;
    line-height: 1.45;
  }
}

@media (max-width: 640px) {
  .auth-shell {
    min-height: 100svh;
    padding: 0.28rem;
    overflow: hidden;
  }

  .auth-layout {
    width: 100%;
    gap: 0.35rem;
    display: grid;
    grid-template-columns: 1fr;
    min-height: calc(100svh - 0.56rem);
  }

  .auth-showcase {
    padding: 0.55rem 0.6rem 0.4rem;
    border-radius: 14px;
    overflow: hidden;
  }

  .auth-panel {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .logo-block {
    gap: 0.48rem;
    margin-bottom: 0.5rem;
  }

  .logo-badge {
    width: 42px;
    height: 42px;
    border-radius: 14px;
  }

  .logo-name {
    font-size: 1rem;
  }

  .logo-block small {
    font-size: 0.62rem;
  }

  .auth-showcase h1 {
    font-size: clamp(1.25rem, 6vw, 1.65rem);
    line-height: 1.08;
    margin: 0.4rem 0 0.3rem;
  }

  .auth-lead {
    font-size: 0.66rem;
    line-height: 1.35;
    max-width: none;
  }

  .showcase-pills {
    margin-top: 0.5rem;
    gap: 0.25rem;
  }

  .showcase-pills span {
    font-size: 0.56rem;
    padding: 0.24rem 0.4rem;
  }

  .showcase-preview {
    max-width: 250px;
    margin-top: 0.45rem;
  }

  .preview-window {
    padding: 0.45rem;
    border-radius: 12px;
    transform: scale(0.72);
    transform-origin: top center;
  }

  .preview-chart {
    height: 58px;
    padding: 0.42rem 0.28rem 0.32rem;
  }

  .metric-pill strong {
    font-size: 0.72rem;
  }

  .feature-grid {
    margin-top: 0.45rem;
    gap: 0.3rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .feature-card {
    padding: 0.42rem 0.35rem;
    border-radius: 9px;
  }

  .feature-icon {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.8rem;
    border-radius: 8px;
  }

  .feature-card h3 {
    font-size: 0.56rem;
    margin: 0.28rem 0 0.12rem;
  }

  .feature-card p {
    font-size: 0.49rem;
    line-height: 1.25;
  }

  .auth-card {
    width: 100%;
    max-width: 100%;
    padding: 0.6rem 0.58rem;
    border-radius: 12px;
    gap: 0.38rem;
    min-height: 0;
  }

  .auth-card-kicker {
    font-size: 0.58rem;
    margin-bottom: 0.14rem;
  }

  .auth-card-header h2 {
    font-size: 1rem;
  }

  .auth-card label {
    font-size: 0.64rem;
    gap: 0.25rem;
  }

  .auth-card input {
    padding: 0.5rem 0.56rem;
    border-radius: 8px;
    font-size: 0.72rem;
  }

  .auth-error {
    padding: 0.42rem 0.5rem;
    font-size: 0.62rem;
  }

  .auth-submit {
    padding: 0.62rem 0.7rem;
    font-size: 0.7rem;
  }

  .auth-note {
    font-size: 0.56rem;
    line-height: 1.25;
    padding: 0.42rem 0.46rem;
  }
}

.topbar {
  display: flex;
  align-items: center;