:root {
    --bg: #0d0f12;
    --surface: #161a20;
    --surface2: #1e242d;
    --border: rgba(255,255,255,0.07);
    --border-hover: rgba(255,255,255,0.14);
    --text: #e8eaed;
    --muted: #7a8494;
    --accent-green: #22c55e;
    --accent-green-dim: rgba(34,197,94,0.12);
    --accent-red: #f87171;
    --accent-red-dim: rgba(248,113,113,0.12);
    --accent-blue: #60a5fa;
    --radius: 12px;
    --radius-sm: 8px;
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Plus Jakarta Sans', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 2rem 1rem 4rem;
  }

  .page {
    width: 100%;
    max-width: 520px;
  }

  /* Header */
  .app-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 2rem;
    padding-top: 0.5rem;
  }
  .app-logo {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, #22c55e22, #22c55e44);
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
  }
  .app-title { font-size: 20px; font-weight: 600; letter-spacing: -0.3px; }
  .app-sub { font-size: 13px; color: var(--muted); margin-top: 2px; }

  /* Card */
  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 10px;
    transition: border-color 0.2s;
  }
  .card:hover { border-color: var(--border-hover); }

  .url-config {
    display: none;
  }

  /* URL bar */
  .url-row {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .url-icon { font-size: 16px; opacity: 0.4; flex-shrink: 0; }
  .url-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--muted);
    font-family: 'DM Mono', monospace;
    font-size: 11.5px;
    min-width: 0;
  }
  .url-input::placeholder { color: #3d4755; }
  .url-input:focus { color: var(--text); }
  .btn-sm {
    padding: 5px 12px;
    border: 1px solid var(--border-hover);
    background: transparent;
    color: var(--muted);
    border-radius: 6px;
    font-size: 12px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer;
    transition: all 0.15s;
    flex-shrink: 0;
  }
  .btn-sm:hover { background: var(--surface2); color: var(--text); }

  /* Section label */
  .section-label {
    font-size: 10.5px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 10px;
  }

  /* Grid */
  .grid-top { display: grid; grid-template-columns: 72px 1fr; gap: 10px; margin-bottom: 10px; }
  .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 10px; }

  /* Field */
  .field { display: flex; flex-direction: column; gap: 6px; }
  .field-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
  }

  input[type="text"],
  input[type="date"],
  input[type="number"],
  select, textarea {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 14px;
    padding: 10px 12px;
    outline: none;
    width: 100%;
    transition: border-color 0.15s, box-shadow 0.15s;
    -webkit-appearance: none;
    appearance: none;
  }
  input:focus, select:focus, textarea:focus {
    border-color: rgba(34,197,94,0.4);
    box-shadow: 0 0 0 3px rgba(34,197,94,0.08);
  }
  input[type="date"]::-webkit-calendar-picker-indicator { filter: invert(0.5); cursor: pointer; }
  input[type="number"] { font-family: 'DM Mono', monospace; }
  select { cursor: pointer; }
  select option { background: #1e242d; }
  textarea { resize: vertical; min-height: 80px; line-height: 1.6; }

  /* Nominal prefix */
  .nominal-wrap { position: relative; }
  .nominal-prefix {
    position: absolute;
    left: 12px; top: 50%;
    transform: translateY(-50%);
    font-family: 'DM Mono', monospace;
    font-size: 12px;
    color: var(--muted);
    pointer-events: none;
  }
  .nominal-wrap input { padding-left: 36px; }

  /* Type toggle */
  .type-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
  .type-btn {
    padding: 10px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface2);
    color: var(--muted);
    font-size: 13px;
    font-weight: 500;
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s;
    display: flex; align-items: center; justify-content: center; gap: 6px;
  }
  .type-btn:hover { border-color: var(--border-hover); color: var(--text); }
  .type-btn.masuk.active {
    background: var(--accent-green-dim);
    border-color: rgba(34,197,94,0.35);
    color: var(--accent-green);
  }
  .type-btn.keluar.active {
    background: var(--accent-red-dim);
    border-color: rgba(248,113,113,0.35);
    color: var(--accent-red);
  }

  .summary-values {
    display: inline-flex;
    gap: 0.5rem;
    align-items: center;
  }
  .summary-value.masuk {
    color: var(--accent-green);
  }
  .summary-value.keluar {
    color: var(--accent-red);
  }

  /* Divider */
  .divider { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }

  /* Button row */
  .btn-row { display: flex; gap: 8px; }
  .btn-reset {
    padding: 12px 16px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer;
    transition: all 0.15s;
  }
  .btn-reset:hover { border-color: var(--border-hover); color: var(--text); background: var(--surface2); }

  .btn-primary {
    flex: 1;
    padding: 12px;
    background: var(--accent-green);
    border: none;
    border-radius: var(--radius-sm);
    color: #061a0d;
    font-size: 14px;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: opacity 0.15s, transform 0.1s;
  }
  .btn-primary:hover { opacity: 0.88; }
  .btn-primary:active { transform: scale(0.98); }
  .btn-primary:disabled { opacity: 0.35; cursor: not-allowed; }

  /* Spinner */
  .spinner {
    width: 15px; height: 15px;
    border: 2px solid rgba(6,26,13,0.3);
    border-top-color: #061a0d;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: none;
  }
  .month-loader {
    width: 12px; height: 12px;
    border: 2px solid rgba(255,255,255,0.25);
    border-top-color: var(--text);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    visibility: hidden;
    margin-right: 8px;
    flex-shrink: 0;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* Recent */
  .recent-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-top: 0;
    margin-bottom: 10px;
  }
  .recent-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--muted);
  }
  .recent-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    transition: background 0.1s;
    animation: fadeIn 0.3s ease;
  }
  .recent-item:last-child { border-bottom: none; }
  .recent-item:hover { background: var(--surface2); }
  @keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
  .badge {
    font-size: 10.5px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 20px;
    flex-shrink: 0;
    font-family: 'DM Mono', monospace;
  }
  .badge-masuk { background: var(--accent-green-dim); color: var(--accent-green); }
  .badge-keluar { background: var(--accent-red-dim); color: var(--accent-red); }
  .recent-uraian { flex: 1; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .recent-date { color: var(--muted); font-size: 11px; font-family: 'DM Mono', monospace; flex-shrink: 0; }
  .recent-nominal { font-family: 'DM Mono', monospace; font-size: 13px; font-weight: 500; flex-shrink: 0; }
  .nominal-masuk { color: var(--accent-green); }
  .nominal-keluar { color: var(--accent-red); }

  /* Toast */
  .toast {
    position: fixed;
    bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(16px);
    padding: 10px 18px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    white-space: nowrap;
    z-index: 999;
  }
  .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
  .toast.success { background: var(--accent-green); color: #061a0d; }
  .toast.error { background: var(--accent-red); color: #fff; }

  /* Status dot */
  .status-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--muted);
    flex-shrink: 0;
    transition: background 0.3s;
  }
  .status-dot.connected { background: var(--accent-green); box-shadow: 0 0 6px rgba(34,197,94,0.5); }