:root {
  --bg: #07070e;
  --card: rgba(255, 255, 255, 0.035);
  --line: rgba(255, 255, 255, 0.09);
  --line2: rgba(255, 255, 255, 0.14);
  --ink: #f2f4ff;
  --mut: #a3a8c0;
  --faint: #757a93;
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-bg-focus: rgba(255, 255, 255, 0.07);
  --seg-bg: rgba(255, 255, 255, 0.04);
  --row-line: rgba(255, 255, 255, 0.05);
  --row-hi: rgba(255, 255, 255, 0.04);
  --box-bg: rgba(255, 255, 255, 0.04);
  --nav-bg: rgba(7, 7, 14, 0.65);
  --blob-op: 0.28;
  --acc: #6d7cff;
  --acc2: #b14bff;
  --cyan: #31d4f1;
  --green: #35e0a5;
  --grad: linear-gradient(100deg, #6d7cff, #b14bff 55%, #31d4f1);
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
  --bg: #f3f5fa;
  --card: #ffffff;
  --line: #e2e6f0;
  --line2: #ccd3e3;
  --ink: #1b1f31;
  --mut: #5c6379;
  --faint: #8b91a6;
  --input-bg: #ffffff;
  --input-bg-focus: #ffffff;
  --seg-bg: #edf0f7;
  --row-line: #edf0f6;
  --row-hi: #f6f8fc;
  --box-bg: #f6f8fc;
  --nav-bg: rgba(255, 255, 255, 0.8);
  --blob-op: 0.14;
  --acc: #4f5fe0;
  --acc2: #9a3fe0;
  --cyan: #169ec0;
  --green: #0b9d6f;
  --grad: linear-gradient(100deg, #4f5fe0, #9a3fe0 55%, #169ec0);
  --shadow: 0 8px 28px rgba(30, 40, 80, 0.1);
}

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

html { scroll-behavior: smooth; }

body {
  position: relative;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 0 18px 48px;
  overflow-x: hidden;
}

/* background blobs */
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(110px);
  opacity: var(--blob-op);
  pointer-events: none;
  z-index: 0;
  animation: float 16s ease-in-out infinite;
}
.b1 { width: 460px; height: 460px; top: -160px; left: -120px; background: #6d7cff; }
.b2 { width: 420px; height: 420px; top: 8%; right: -140px; background: #b14bff; animation-delay: -5s; }
.b3 { width: 400px; height: 400px; bottom: -180px; left: 35%; background: #31d4f1; animation-delay: -9s; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(24px, 26px) scale(1.06); }
}

.wrap { position: relative; z-index: 1; max-width: 1080px; margin: 0 auto; }

/* topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 0 -18px 8px;
  padding: 12px 22px;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-size: 16px; }
.brand strong { font-weight: 700; }
.brand span { letter-spacing: -0.01em; }
.brand strong {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.logo { width: 36px; height: 36px; border-radius: 10px; }
.nav-links { margin-left: auto; display: flex; gap: 20px; }
.nav-links a {
  color: var(--mut); text-decoration: none; font-size: 14px; font-weight: 600;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--ink); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; text-decoration: none; font-weight: 700; font-size: 14px;
  color: #fff; background: var(--grad);
  padding: 10px 20px; border-radius: 11px; border: 0; cursor: pointer;
  box-shadow: 0 6px 22px rgba(109, 124, 255, 0.35);
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(109, 124, 255, 0.5); }
.btn.small { padding: 8px 16px; font-size: 13px; }

/* toggle tema */
.theme-btn {
  margin-left: auto;
  width: 38px; height: 38px;
  flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 17px; line-height: 1;
  background: var(--input-bg);
  border: 1px solid var(--line);
  border-radius: 11px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.theme-btn:hover { border-color: var(--line2); transform: translateY(-1px); }

/* hero */
header { text-align: center; padding: 52px 0 36px; }
.badge {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: 0.06em;
  color: #d5d9ff;
  background: rgba(109, 124, 255, 0.12);
  border: 1px solid rgba(109, 124, 255, 0.35);
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
h1 {
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 800;
  margin-bottom: 16px;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sub { color: var(--mut); font-size: 16px; max-width: 56ch; margin: 0 auto; }

/* layout 2 kolom */
.layout { display: grid; grid-template-columns: 1fr; gap: 18px; }
.layout .col { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

/* cards */
section {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, transform 0.2s;
}
section:hover { border-color: var(--line2); }
section::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(140deg, rgba(109,124,255,0.45), transparent 45%, rgba(49,212,241,0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.6;
}
h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--mut);
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  font-weight: 700;
}
h2 span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 10px rgba(109, 124, 255, 0.9);
}

/* inputs */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}
.grid.two { grid-template-columns: 1fr 1fr; }
label {
  display: block;
  font-size: 12.5px;
  color: var(--mut);
  margin-bottom: 6px;
  font-weight: 600;
}
input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 10px 12px;
  border-radius: 11px;
  font: inherit;
  font-size: 14.5px;
  outline: none;
  min-width: 0;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
input::placeholder { color: var(--faint); }
input:hover { border-color: var(--line2); }
input:focus {
  background: var(--input-bg-focus);
  border-color: var(--acc);
  box-shadow: 0 0 0 3px rgba(109, 124, 255, 0.25);
}
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.hint { font-size: 11.5px; color: var(--faint); margin-top: 5px; }

/* tabs */
.tabs {
  display: inline-flex;
  background: var(--seg-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 16px;
  gap: 4px;
}
.tabs button {
  border: 0;
  background: transparent;
  color: var(--mut);
  padding: 8px 20px;
  border-radius: 9px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.tabs button.on {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 16px rgba(109, 124, 255, 0.4);
}

/* tables */
.tbl { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { padding: 9px 10px; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th {
  color: var(--faint);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--line);
}
tbody tr td { border-bottom: 1px solid var(--row-line); color: var(--mut); }
tbody tr:last-child td {
  border-bottom: 0;
  color: var(--ink);
  font-weight: 700;
  background: var(--row-hi);
}

/* ringkasan total */
.totals { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.tot {
  background: var(--box-bg);
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.tot small { color: var(--mut); font-size: 12px; }
.tot b { font-size: 17px; color: var(--green); }
.tot .hint { margin-top: 1px; }

/* result */
.big {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding: 15px 16px;
  background: rgba(109, 124, 255, 0.08);
  border: 1px solid rgba(109, 124, 255, 0.3);
  border-radius: 14px;
}
.big small { color: var(--mut); font-size: 12.5px; }
.big b {
  font-size: clamp(19px, 4.5vw, 27px);
  letter-spacing: -0.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.big.netto b { background: linear-gradient(100deg, #35e0a5, #31d4f1); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* tabel tunjangan */
.tunjangan tbody td { color: var(--ink); }
.tunjangan tbody td:last-child { width: 52%; }
.tunjangan input { text-align: right; }
.tunjangan .kpi { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
.tunjangan .kpi-pct { display: flex; align-items: center; gap: 6px; }
.tunjangan .kpi-pct input { flex: 1; }
.tunjangan .kpi input[readonly] {
  width: 100%;
  background: rgba(53, 224, 165, 0.08);
  color: var(--green);
  font-weight: 700;
  border-color: rgba(53, 224, 165, 0.3);
}
.tunjangan .pct { color: var(--mut); font-weight: 700; }

/* dropdown note */
.note {
  margin-top: 14px;
  border: 1px dashed var(--line2);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--mut);
  line-height: 1.8;
}
.note summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
  list-style: none;
  font-size: 13px;
}
.note summary::-webkit-details-marker { display: none; }
.note summary::before { content: "▸ "; color: var(--acc); }
.note[open] summary::before { content: "▾ "; }
.note[open] summary { margin-bottom: 6px; }
.note b { color: var(--ink); }
.note .faint { color: var(--faint); margin-top: 4px; }

footer {
  text-align: center;
  color: var(--faint);
  font-size: 12px;
  padding: 22px 0 0;
  line-height: 1.8;
}
footer b {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ===== desktop ===== */
@media (min-width: 900px) {
  body { padding: 0 24px 56px; font-size: 16px; }
  .wrap { max-width: 1100px; }
  .layout { grid-template-columns: 1fr 1fr; align-items: start; }
  section { padding: 26px; }
  header { padding: 64px 0 40px; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}

/* ===== mobile ===== */
@media (max-width: 640px) {
  body { padding: 0 12px 40px; font-size: 14.5px; }
  section { padding: 16px; margin-bottom: 4px; border-radius: 16px; }
  header { padding: 30px 0 24px; }
  .grid, .grid.two { grid-template-columns: 1fr; }
  .tabs { width: 100%; }
  .tabs button { flex: 1; padding: 8px 6px; }
  th, td { padding: 8px 6px; font-size: 12.5px; }
  .nav-links { display: none; }
  .topbar { padding: 10px 14px; gap: 10px; }
  .big { padding: 12px 14px; }
}