/* design tokens */
:root {
  --font: 'Inter', system-ui, sans-serif;

  --bg: #0f0f1a;
  --bg-card: rgba(22, 22, 39, 0.7);
  --bg-card-hover: rgba(30, 30, 55, 0.85);
  --bg-input: rgba(255, 255, 255, 0.06);
  --bg-input-focus: rgba(255, 255, 255, 0.1);

  --text: #e8e8f0;
  --text-dim: #9a9ab5;
  --text-muted: #6b6b85;

  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.15);

  --green: #34d399;
  --green-bg: rgba(52, 211, 153, 0.1);
  --green-border: rgba(52, 211, 153, 0.25);

  --red: #f87171;
  --red-bg: rgba(248, 113, 113, 0.1);
  --red-border: rgba(248, 113, 113, 0.25);

  --purple: #a78bfa;
  --blue: #60a5fa;

  --radius: 12px;
  --radius-lg: 16px;
}

/* reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* background blobs biar ga terlalu flat */
.bg-blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
  animation: floatBlob 20s ease-in-out infinite;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.35), transparent 70%);
  top: -150px; left: -100px;
}
.blob-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(52,211,153,0.25), transparent 70%);
  top: 50%; right: -100px;
  animation-delay: -7s;
}
.blob-3 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, rgba(248,113,113,0.2), transparent 70%);
  bottom: -100px; left: 30%;
  animation-delay: -14s;
}

@keyframes floatBlob {
  0%, 100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(30px,-40px) scale(1.05); }
  66% { transform: translate(-20px,20px) scale(0.95); }
}

/* layout */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 880px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

/* header */
.app-header {
  text-align: center;
  padding: 36px 0 28px;
}
.app-header h1 {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--purple), var(--blue), var(--green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* summary cards */
.summary-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.summary-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}
.summary-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}
.total-balance::before { background: linear-gradient(90deg, var(--purple), var(--blue)); }
.income-card::before { background: var(--green); }
.expense-card::before { background: var(--red); }

.summary-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
}
.card-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.7px;
}
.card-value {
  font-size: 1.2rem;
  font-weight: 700;
}
.income-card .card-value { color: var(--green); }
.expense-card .card-value { color: var(--red); }

/* form */
.form-section {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 28px;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.form-group {
  margin-bottom: 14px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.form-group input::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group select:focus {
  background: var(--bg-input-focus);
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(167,139,250,0.12);
}
.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239a9ab5' viewBox='0 0 16 16'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.form-group select option {
  background: #161627;
  color: var(--text);
}

.btn-submit {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, #7c3aed, #6366f1);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s;
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(124,58,237,0.3);
}
.btn-submit:active {
  transform: translateY(0);
}

/* transaction lists */
.lists-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.list-container {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  min-height: 180px;
}
.income-title { color: var(--green); }
.expense-title { color: var(--red); }

.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 7px;
  border-radius: 11px;
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: auto;
}
.income-title .count-badge {
  background: var(--green-bg);
  color: var(--green);
}
.expense-title .count-badge {
  background: var(--red-bg);
  color: var(--red);
}

.transaction-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* kartu transaksi */
.transaction-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: background 0.2s, transform 0.15s;
  position: relative;
  overflow: hidden;
}
.transaction-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
}
.transaction-card.income-type::before { background: var(--green); }
.transaction-card.expense-type::before { background: var(--red); }
.transaction-card:hover {
  background: var(--bg-card-hover);
  transform: translateX(3px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
}
.card-title {
  font-size: 0.92rem;
  font-weight: 600;
  word-break: break-word;
}
.card-amount {
  font-size: 0.95rem;
  font-weight: 700;
  white-space: nowrap;
  margin-left: 10px;
}
.card-amount.income { color: var(--green); }
.card-amount.expense { color: var(--red); }

.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.card-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.card-type-badge {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  padding: 2px 7px;
  border-radius: 5px;
}
.card-type-badge.income {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid var(--green-border);
}
.card-type-badge.expense {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid var(--red-border);
}

.card-actions {
  display: flex;
  gap: 6px;
}
.btn-action {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-edit:hover {
  background: rgba(167,139,250,0.12);
  border-color: var(--purple);
  color: var(--purple);
}
.btn-delete:hover {
  background: var(--red-bg);
  border-color: var(--red);
  color: var(--red);
}

/* empty state */
.empty-state {
  text-align: center;
  padding: 28px 12px;
  color: var(--text-muted);
}
.empty-state-text {
  font-size: 0.82rem;
}

/* footer */
.app-footer {
  text-align: center;
  padding: 28px 0 12px;
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* responsive */
@media (max-width: 768px) {
  .summary-section { grid-template-columns: 1fr; }
  .lists-section { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .app-header h1 { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .app-container { padding: 12px 10px 28px; }
  .form-section, .list-container { padding: 18px; }
}

/* scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }