/* ============ RESET & TOKENS ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root,
[data-theme="dark"] {
  --bg:        #131110;
  --surface:   #1c1a17;
  --surface-2: #232019;
  --border:    #2d2a24;
  --border-strong: #3d3830;
  --text:      #ebe5db;
  --text-muted:#8a8278;
  --text-dim:  #5c574e;
  --accent:    #d4a853;
  --accent-soft: rgba(212, 168, 83, 0.12);
  --masuk:     #7ba37c;
  --masuk-soft:rgba(123, 163, 124, 0.14);
  --keluar:    #c75c4a;
  --keluar-soft:rgba(199, 92, 74, 0.14);
  --overlay:   rgba(0, 0, 0, 0.7);
  color-scheme: dark;
}

[data-theme="light"] {
  --bg:        #faf7f0;
  --surface:   #ffffff;
  --surface-2: #f4f0e8;
  --border:    #e8e1d3;
  --border-strong:#d4cbb8;
  --text:      #1a1714;
  --text-muted:#6b6558;
  --text-dim:  #a39a87;
  --accent:    #a67c00;
  --accent-soft: rgba(166, 124, 0, 0.10);
  --masuk:     #4a7c59;
  --masuk-soft:rgba(74, 124, 89, 0.10);
  --keluar:    #b83a2a;
  --keluar-soft:rgba(184, 58, 42, 0.10);
  --overlay:   rgba(30, 25, 15, 0.5);
  color-scheme: light;
}

/* ============ BASE ============ */
html, body { height: 100%; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ============ TOPBAR ============ */
.topbar {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1rem;
  position: relative;
  z-index: 5;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  font-family: "Instrument Serif", serif;
  font-style: italic;
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 50%;
  flex-shrink: 0;
  line-height: 1;
  padding-bottom: 2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-title {
  font-family: "Instrument Serif", serif;
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand-sub {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.icon-btn:hover {
  background: var(--surface);
  border-color: var(--border);
}

.icon-btn.small { width: 34px; height: 34px; }

.icon-btn svg { width: 20px; height: 20px; }

#themeToggle .icon-moon { display: block; }
#themeToggle .icon-sun  { display: none; }
[data-theme="light"] #themeToggle .icon-moon { display: none; }
[data-theme="light"] #themeToggle .icon-sun  { display: block; }

/* ============ SIDEBAR ============ */
.overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 98;
}

.overlay.open { opacity: 1; pointer-events: auto; }

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  max-width: 85vw;
  height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 99;
  padding: 1.5rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
}

.sidebar.open { transform: translateX(0); }

.sidebar-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

.sidebar-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.2rem;
}

.sidebar-title {
  font-family: "Instrument Serif", serif;
  font-size: 1.5rem;
  color: var(--text);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
}

.nav-item {
  display: grid;
  grid-template-columns: 26px 20px 1fr;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 0.6rem;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  text-align: left;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}

.nav-item:hover { background: var(--surface-2); }

.nav-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.nav-icon {
  display: inline-flex;
  color: var(--text-muted);
  transition: color 0.15s;
}

.nav-icon svg { width: 18px; height: 18px; }

.nav-label { color: var(--text-muted); transition: color 0.15s; }

.nav-item.active {
  background: var(--accent-soft);
}

.nav-item.active .nav-num { color: var(--accent); }
.nav-item.active .nav-icon { color: var(--accent); }
.nav-item.active .nav-label { color: var(--text); font-weight: 600; }

.nav-item.active::before {
  content: "";
  position: absolute;
  left: -1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.sidebar-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.sidebar-credit {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.credit-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.credit-name {
  font-family: "Instrument Serif", serif;
  font-size: 1.05rem;
  color: var(--accent);
  font-style: italic;
}

.sidebar-version {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* ============ MAIN ============ */
main {
  flex: 1;
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
}

.page { display: none; animation: fade 0.35s ease; }
.page.active { display: block; }

@keyframes fade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============ HERO (Beranda) ============ */
.hero {
  padding: 2.5rem 0 2rem;
}

.hero-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.hero-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--masuk);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--masuk-soft);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-rule {
  height: 1px;
  background: var(--border);
}

.hero-amount {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  font-size: clamp(2.6rem, 13vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  padding: 2rem 0;
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.hero-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.25rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}

/* ============ PAGE HEAD ============ */
.page-head {
  padding: 1.5rem 0 1.25rem;
}

.page-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: block;
  margin-bottom: 0.5rem;
}

.page-title {
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  font-size: 1.9rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* ============ SEARCH & FILTER ============ */
.search-wrap {
  position: relative;
  margin-bottom: 1rem;
}

.search-wrap svg {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 17px;
  height: 17px;
  color: var(--text-dim);
  pointer-events: none;
}

#search-anggota,
.filter-select {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}

#search-anggota::placeholder { color: var(--text-dim); }

#search-anggota:focus,
.filter-select:focus {
  border-color: var(--accent);
}

.filter-select {
  padding-left: 1rem;
  padding-right: 2.5rem;
  margin-bottom: 1rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238a8278' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
}

/* ============ TABLE ============ */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

th, td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

th {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.63rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
  background: var(--surface-2);
  white-space: nowrap;
}

tr:last-child td { border-bottom: none; }

.col-num {
  width: 42px;
  font-family: "JetBrains Mono", monospace;
  color: var(--text-dim);
  font-size: 0.75rem;
}

td.col-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.text-right { text-align: right; }
.text-center { text-align: center; }

td.text-right {
  font-family: "JetBrains Mono", monospace;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge.lunas::before { background: var(--masuk); box-shadow: 0 0 0 3px var(--masuk-soft); }
.badge.belum::before { background: var(--keluar); box-shadow: 0 0 0 3px var(--keluar-soft); }

.empty {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.05em;
}

/* ============ LIST (Transaksi) ============ */
.list { display: flex; flex-direction: column; }

.trx {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.trx:last-child { border-bottom: none; }

.trx-date {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  line-height: 1.4;
  padding-top: 0.15rem;
}

.trx-date-day {
  display: block;
  color: var(--text-muted);
  font-weight: 500;
}

.trx-body { min-width: 0; }

.trx-title {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.15rem;
  word-break: break-word;
}

.trx-desc {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.4;
  word-break: break-word;
}

.trx-amount {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  font-weight: 700;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  padding-top: 0.15rem;
}

.trx-amount.masuk  { color: var(--masuk); }
.trx-amount.keluar { color: var(--keluar); }

/* ============ CHART ============ */
.chart-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  height: 340px;
  position: relative;
}

/* ============ PAGINATION ============ */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  gap: 0.5rem;
}

.pagination button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  font-size: 0.78rem;
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.pagination button svg { width: 14px; height: 14px; }

.pagination button:not(:disabled):hover {
  border-color: var(--accent);
  background: var(--surface-2);
}

.pagination button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

#page-info {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ============ FOOTER ============ */
footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.25rem 1.5rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.63rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.foot-sep { opacity: 0.5; }

/* ============ DESKTOP ============ */
@media (min-width: 640px) {
  .topbar { padding: 1.75rem 1.75rem 1.25rem; }
  .brand-title { font-size: 1.4rem; }
  .hero { padding: 3rem 0 2.5rem; }
  .page-title { font-size: 2.2rem; }
  main { padding: 0 1.75rem 3rem; }
}