:root {
  --bg: #090d1a;
  --bg-soft: #0f172a;
  --panel: rgba(17, 24, 39, 0.82);
  --panel-strong: #111827;
  --border: rgba(255, 255, 255, 0.1);
  --text: #f8fafc;
  --muted: #94a3b8;
  --primary: #6852ff;
  --primary-2: #00e0ff;
  --green: #2ee59d;
  --yellow: #ffd166;
  --red: #ff4d6d;
  --blue: #38bdf8;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 224, 255, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(104, 82, 255, 0.28), transparent 35%),
    linear-gradient(135deg, #060816 0%, #0f172a 45%, #111827 100%);
  min-height: 100vh;
}

button,
input,
select {
  font-family: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 290px 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px;
  background: rgba(8, 13, 26, 0.78);
  border-right: 1px solid var(--border);
  backdrop-filter: blur(24px);
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 34px;
}

.logo {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px rgba(104, 82, 255, 0.34);
}

.brand h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.04em;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.nav {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}

.nav-link {
  text-decoration: none;
  color: var(--muted);
  padding: 13px 16px;
  border-radius: 16px;
  transition: 0.2s ease;
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(104, 82, 255, 0.24), rgba(0, 224, 255, 0.12));
}

.side-card {
  padding: 20px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(104, 82, 255, 0.28), rgba(0, 224, 255, 0.12)),
    rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.side-card-label {
  color: var(--muted);
  font-size: 13px;
}

.side-card strong {
  display: block;
  margin: 10px 0;
  font-size: 38px;
  letter-spacing: -0.06em;
}

.side-card p {
  margin: 0;
  color: #cbd5e1;
  font-size: 13px;
  line-height: 1.5;
}

.main-content {
  padding: 30px;
  overflow: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--primary-2);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.topbar h2 {
  margin: 8px 0 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1;
  letter-spacing: -0.06em;
}

.month-control {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.06);
}

.month-control input,
.small-select {
  color: var(--text);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 11px 12px;
  outline: none;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: white;
  font-size: 28px;
  cursor: pointer;
}

.alerts-area {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.alert {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.alert::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.16;
  pointer-events: none;
}

.alert strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
}

.alert p {
  margin: 0;
  color: #e2e8f0;
  line-height: 1.5;
}

.alert-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  flex: 0 0 42px;
  border-radius: 14px;
  font-size: 21px;
  font-weight: 900;
}

.alert-danger {
  background: rgba(127, 29, 29, 0.68);
  animation: pulseDanger 1.8s infinite;
}

.alert-danger::before {
  background: var(--red);
}

.alert-danger .alert-icon {
  background: var(--red);
}

.alert-warning {
  background: rgba(113, 63, 18, 0.72);
}

.alert-warning::before {
  background: var(--yellow);
}

.alert-warning .alert-icon {
  background: var(--yellow);
  color: #422006;
}

@keyframes pulseDanger {
  0%, 100% {
    box-shadow: 0 0 0 rgba(255, 77, 109, 0.15), var(--shadow);
  }

  50% {
    box-shadow: 0 0 34px rgba(255, 77, 109, 0.42), var(--shadow);
  }
}

.section {
  margin-bottom: 28px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.metric-card,
.panel {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.metric-card {
  padding: 22px;
  overflow: hidden;
  position: relative;
}

.metric-card::after {
  content: "";
  position: absolute;
  width: 110px;
  height: 110px;
  right: -40px;
  top: -40px;
  border-radius: 999px;
  opacity: 0.18;
}

.metric-card.highlight::after {
  background: var(--primary-2);
}

.metric-card.income::after {
  background: var(--green);
}

.metric-card.danger::after {
  background: var(--red);
}

.metric-card.scheduled::after {
  background: var(--yellow);
}

.metric-card span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.metric-card strong {
  display: block;
  margin: 12px 0 6px;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -0.05em;
}

.metric-card small {
  color: #cbd5e1;
}

.dashboard-grid,
.split-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
}

.panel {
  padding: 24px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.panel h3 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.panel p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.bars {
  display: grid;
  gap: 20px;
}

.bar-row {
  display: grid;
  grid-template-columns: 90px 1fr 120px;
  gap: 12px;
  align-items: center;
}

.bar-row span {
  color: #cbd5e1;
  font-weight: 700;
}

.bar-track {
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.bar-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  transition: width 0.4s ease;
}

.income-fill {
  background: linear-gradient(90deg, var(--green), #a7f3d0);
}

.debt-fill {
  background: linear-gradient(90deg, var(--red), #fb7185);
}

.balance-fill {
  background: linear-gradient(90deg, var(--primary-2), var(--primary));
}

.status-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.status-cards div {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--border);
}

.status-cards small {
  display: block;
  margin: 9px 0;
  color: var(--muted);
  font-weight: 700;
}

.status-cards strong {
  font-size: 30px;
}

.dot {
  display: block;
  width: 13px;
  height: 13px;
  border-radius: 999px;
}

.red {
  background: var(--red);
}

.yellow {
  background: var(--yellow);
}

.blue {
  background: var(--blue);
}

.green {
  background: var(--green);
}

.form {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-group label {
  color: #dbeafe;
  font-weight: 700;
  font-size: 13px;
}

.form-group input,
.form-group select {
  width: 100%;
  color: var(--text);
  background: rgba(15, 23, 42, 0.86);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.month-control input:focus,
.small-select:focus {
  border-color: rgba(0, 224, 255, 0.75);
  box-shadow: 0 0 0 4px rgba(0, 224, 255, 0.12);
}

.primary-btn {
  border: 0;
  cursor: pointer;
  border-radius: 16px;
  padding: 15px 18px;
  color: white;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 18px 40px rgba(104, 82, 255, 0.32);
}

.income-btn {
  background: linear-gradient(135deg, #059669, var(--green));
}

.items-list {
  display: grid;
  gap: 12px;
  max-height: 520px;
  overflow: auto;
  padding-right: 4px;
}

.item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 16px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid var(--border);
}

.item-title {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 8px;
}

.item h4 {
  margin: 0;
  font-size: 16px;
}

.item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.badge-open {
  color: #bfdbfe;
  background: rgba(56, 189, 248, 0.14);
}

.badge-paid {
  color: #bbf7d0;
  background: rgba(46, 229, 157, 0.14);
}

.badge-overdue {
  color: #fecdd3;
  background: rgba(255, 77, 109, 0.2);
}

.badge-soon {
  color: #fef3c7;
  background: rgba(255, 209, 102, 0.18);
}

.badge-scheduled {
  color: #ddd6fe;
  background: rgba(104, 82, 255, 0.18);
}

.item-value {
  text-align: right;
}

.item-value strong {
  display: block;
  font-size: 18px;
  margin-bottom: 10px;
}

.item-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.action-btn {
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 9px 10px;
  cursor: pointer;
  font-weight: 800;
}

.action-btn.pay {
  color: #bbf7d0;
}

.action-btn.delete {
  color: #fecdd3;
}

.empty {
  padding: 24px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 20px;
  color: var(--muted);
  text-align: center;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  transform: translateY(30px);
  opacity: 0;
  pointer-events: none;
  padding: 14px 18px;
  border-radius: 16px;
  color: white;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: var(--shadow);
  transition: 0.25s ease;
  z-index: 99;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
  }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dashboard-grid,
  .split-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .main-content,
  .sidebar {
    padding: 18px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .month-control {
    justify-content: space-between;
  }

  .cards-grid,
  .form-row,
  .status-cards {
    grid-template-columns: 1fr;
  }

  .bar-row {
    grid-template-columns: 1fr;
  }

  .item {
    grid-template-columns: 1fr;
  }

  .item-value {
    text-align: left;
  }

  .item-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}
.hidden {
  display: none !important;
}

.auth-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(0, 224, 255, 0.22), transparent 34%),
    radial-gradient(circle at bottom right, rgba(104, 82, 255, 0.32), transparent 36%),
    linear-gradient(135deg, #060816 0%, #0f172a 50%, #111827 100%);
}

.auth-card {
  width: min(100%, 460px);
  padding: 34px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: rgba(17, 24, 39, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(26px);
}

.auth-brand {
  margin-bottom: 28px;
}

.auth-copy {
  margin-bottom: 22px;
}

.auth-copy h2 {
  margin: 8px 0 8px;
  font-size: 34px;
  letter-spacing: -0.06em;
}

.auth-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.ghost-btn {
  width: 100%;
  margin-top: 14px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  font-weight: 800;
}

.ghost-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.topbar-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.logout-btn {
  border: 1px solid rgba(255, 77, 109, 0.32);
  color: #fecdd3;
  background: rgba(255, 77, 109, 0.12);
  border-radius: 16px;
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 900;
}

.user-line {
  margin: 10px 0 0;
  color: var(--muted);
}

.user-line strong {
  color: var(--text);
}

@media (max-width: 720px) {
  .topbar-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .logout-btn {
    width: 100%;
  }

  .auth-card {
    padding: 24px;
  }
}