/* ==========================================================================
   Kalkulator.ID — Redesign v2
   2-Color System: Indigo (primary) + Amber (accent). Sisanya neutral.
   ========================================================================== */

:root {
  /* === 2 brand colors === */
  --c-primary:        #4F46E5;
  --c-primary-600:    #4338CA;
  --c-primary-700:    #3730A3;
  --c-primary-50:     #EEF2FF;
  --c-primary-100:    #E0E7FF;

  --c-accent:         #F59E0B;
  --c-accent-600:     #D97706;
  --c-accent-50:      #FFFBEB;
  --c-accent-100:     #FEF3C7;

  /* === Neutrals (structural, bukan brand) === */
  --c-ink:            #0B1020;
  --c-ink-soft:       #3F4659;
  --c-ink-mute:       #7C8398;
  --c-line:           #E6E8EF;
  --c-line-strong:    #CFD3DE;
  --c-bg:             #F7F8FB;
  --c-surface:        #FFFFFF;
  --c-surface-soft:   #FAFBFD;

  /* === Shadow & radius === */
  --shadow-xs: 0 1px 2px rgba(11,16,32,.04);
  --shadow-sm: 0 2px 8px rgba(11,16,32,.06), 0 1px 2px rgba(11,16,32,.04);
  --shadow-md: 0 8px 24px rgba(11,16,32,.08), 0 2px 6px rgba(11,16,32,.05);
  --shadow-lg: 0 18px 48px rgba(11,16,32,.10), 0 4px 12px rgba(11,16,32,.06);
  --shadow-pop: 0 12px 32px rgba(79,70,229,.18);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* === Typography === */
  --font-sans: "Plus Jakarta Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Plus Jakarta Sans", "Inter", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --container: 1180px;
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color .15s; }
a:hover { color: var(--c-primary-600); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  margin: 0 0 .6em;
  font-weight: 700;
  color: var(--c-ink);
  letter-spacing: -.018em;
}
h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 800; letter-spacing: -.025em; }
h2 { font-size: clamp(1.25rem, 2.8vw, 1.55rem); font-weight: 700; }
h3 { font-size: 1.08rem; font-weight: 700; }
p  { margin: 0 0 1em; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 16px; }

/* ============ HEADER ============ */
.site-header {
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
}
.brand {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--c-ink);
}
.brand-logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-700) 100%);
  color: white;
  border-radius: 12px;
  font-size: 22px;
  box-shadow: var(--shadow-pop);
}
.brand-logo-img {
  width: 44px; height: 44px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 800; font-size: 1.08rem; color: var(--c-ink); letter-spacing: -.025em; }
.brand-tag  { font-size: .72rem; color: var(--c-ink-mute); font-weight: 500; }

.nav-toggle {
  background: var(--c-primary-50); border: 0; padding: 6px; cursor: pointer;
  display: flex; flex-direction: column; gap: 4px;
  width: 40px; height: 40px; align-items: center; justify-content: center;
  border-radius: 10px;
  color: var(--c-primary);
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; background: currentColor; border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.site-nav {
  display: none;
  flex-direction: column;
  width: 100%;
  background: var(--c-surface);
  border-top: 1px solid var(--c-line);
  padding: 8px 0;
}
body.nav-open .site-nav { display: flex; }
.site-nav a {
  padding: 14px 16px;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-line);
  font-weight: 500;
}
.site-nav a:last-child { border-bottom: 0; }
.site-nav a:hover { background: var(--c-primary-50); color: var(--c-primary); }

/* ============ MAIN ============ */
.main-content { padding: 28px 16px 56px; min-height: 50vh; }

/* ============ HERO ============ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-700) 100%);
  color: white;
  padding: 56px 16px 64px;
  margin: 0 -16px 32px;
  border-radius: 0 0 28px 28px;
  text-align: center;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%;
  background: radial-gradient(circle, var(--c-accent) 0%, transparent 70%);
  opacity: .25; filter: blur(30px); pointer-events: none;
}
.hero::before { width: 260px; height: 260px; top: -100px; right: -60px; }
.hero::after  { width: 200px; height: 200px; bottom: -80px; left: -40px; opacity: .18; }
.hero > .container { position: relative; }
.hero h1 { color: white; margin: 0 0 14px; font-size: clamp(1.7rem, 4.5vw, 2.6rem); }
.hero p  { color: rgba(255,255,255,.92); margin: 0 auto 20px; max-width: 620px; font-size: 1.05rem; }

.hero-search {
  max-width: 480px; margin: 18px auto 0;
  position: relative;
}
.hero-search input {
  width: 100%;
  padding: 14px 18px 14px 46px;
  font-size: 1rem;
  font-family: inherit;
  background: white;
  border: 0;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  color: var(--c-ink);
}
.hero-search input:focus {
  outline: none; box-shadow: 0 0 0 4px rgba(245,158,11,.45), var(--shadow-md);
}
.hero-search::before {
  content: "🔍";
  position: absolute; left: 18px; top: 50%; transform: translateY(-50%);
  font-size: 1.05rem; pointer-events: none;
}

/* ============ KATEGORI ============ */
.category-section { margin-bottom: 36px; }
.category-header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.category-header .cat-icon {
  width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-primary-50);
  border-radius: 12px;
  font-size: 1.4rem;
}
.category-header h2 { margin: 0; }
.category-header small {
  color: var(--c-ink-mute); margin-left: auto;
  font-size: .8rem; font-weight: 600;
  background: white; padding: 4px 10px; border-radius: var(--radius-pill);
  border: 1px solid var(--c-line);
}

/* ============ CALC GRID ============ */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 480px) { .calc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .calc-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; } }
@media (min-width: 1024px){ .calc-grid { grid-template-columns: repeat(4, 1fr); } }

.calc-card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex; flex-direction: column; gap: 8px;
  color: var(--c-ink);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow: hidden;
}
.calc-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 0%, var(--c-primary-50) 100%);
  opacity: 0; transition: opacity .2s; pointer-events: none;
}
.calc-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary-100);
}
.calc-card:hover::after { opacity: .6; }
.calc-card > * { position: relative; z-index: 1; }
.calc-card-icon {
  font-size: 1.8rem; line-height: 1;
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c-accent-50);
  border-radius: 12px;
  margin-bottom: 4px;
}
.calc-card-title { font-weight: 700; font-size: 1rem; line-height: 1.3; color: var(--c-ink); }
.calc-card-desc  { font-size: .85rem; color: var(--c-ink-soft); line-height: 1.5; }

/* ============ CALC PAGE LAYOUT ============ */
.calc-page {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 960px) {
  .calc-page { grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; }
}
.calc-main {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) { .calc-main { padding: 32px; } }

.calc-head { margin-bottom: 22px; }
.calc-head .breadcrumb {
  font-size: .82rem; color: var(--c-ink-mute);
  margin-bottom: 10px;
}
.calc-head .breadcrumb a { color: var(--c-ink-soft); }
.calc-head .breadcrumb a:hover { color: var(--c-primary); }
.calc-head h1 {
  display: flex; align-items: center; gap: 14px;
  margin: 0 0 8px;
}
.calc-head h1 .icon {
  width: 52px; height: 52px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--c-accent-50) 0%, var(--c-accent-100) 100%);
  border-radius: 14px;
  font-size: 1.7rem;
}
.calc-head .lead { color: var(--c-ink-soft); margin: 0; font-size: 1.02rem; }

/* ============ FORM ============ */
.calc-form {
  display: flex; flex-direction: column; gap: 16px;
  background: var(--c-surface-soft);
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-line);
  margin: 22px 0;
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label {
  font-weight: 600; font-size: .92rem; color: var(--c-ink);
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
}
.form-row label .hint { font-weight: 500; font-size: .78rem; color: var(--c-ink-mute); }

.form-row input[type="text"],
.form-row input[type="number"],
.form-row input[type="date"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--c-ink);
  background: white;
  border: 1.5px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none; appearance: none;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px var(--c-primary-50);
}
.form-row .input-group {
  display: flex; align-items: stretch;
  border: 1.5px solid var(--c-line-strong);
  border-radius: var(--radius-sm);
  background: white;
  overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.form-row .input-group:focus-within {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px var(--c-primary-50);
}
.form-row .input-group input { border: 0 !important; box-shadow: none !important; flex: 1; }
.form-row .input-group .addon {
  padding: 0 14px; display: flex; align-items: center;
  background: var(--c-surface-soft); color: var(--c-ink-soft);
  font-weight: 600; font-size: .9rem;
  border-left: 1px solid var(--c-line);
}
.form-row .input-group .addon.left { border-left: 0; border-right: 1px solid var(--c-line); }

.form-grid-2 {
  display: grid; grid-template-columns: 1fr; gap: 16px;
}
@media (min-width: 600px) { .form-grid-2 { grid-template-columns: 1fr 1fr; } }

.form-actions {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; font-size: .98rem; font-weight: 600;
  font-family: inherit;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-600) 100%);
  color: white;
  border: 0; border-radius: var(--radius-sm); cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(79,70,229,.25);
  transition: transform .12s, box-shadow .15s, filter .15s;
}
.btn:hover { filter: brightness(1.05); box-shadow: 0 6px 16px rgba(79,70,229,.32); color: white; text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-secondary {
  background: white; color: var(--c-ink);
  border: 1.5px solid var(--c-line-strong);
  box-shadow: none;
}
.btn-secondary:hover { background: var(--c-surface-soft); color: var(--c-ink); filter: none; box-shadow: none; }
.btn-share {
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-600) 100%);
  box-shadow: 0 4px 12px rgba(245,158,11,.32);
}
.btn-share:hover { box-shadow: 0 6px 16px rgba(245,158,11,.40); }

/* ============ RESULT ============ */
.result {
  margin-top: 6px;
  background: linear-gradient(135deg, var(--c-primary-50) 0%, white 100%);
  border: 1.5px solid var(--c-primary-100);
  border-radius: var(--radius-md);
  padding: 22px;
}
.result.empty { display: none; }
.result.show  { display: block; animation: result-in .25s ease-out; }
@keyframes result-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.result h3 {
  margin: 0 0 16px; color: var(--c-primary-700);
  display: flex; align-items: center; gap: 8px;
}
.result-grid {
  display: grid; grid-template-columns: 1fr; gap: 10px;
}
@media (min-width: 600px) { .result-grid { grid-template-columns: 1fr 1fr; } }
.result-item {
  background: white; border-radius: var(--radius-sm); padding: 14px 16px;
  border: 1px solid var(--c-primary-100);
}
.result-item .label {
  font-size: .8rem; color: var(--c-ink-soft); margin-bottom: 4px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .03em;
}
.result-item .value {
  font-size: 1.18rem; font-weight: 700; color: var(--c-ink);
  font-variant-numeric: tabular-nums;
}
.result-item.highlight {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-700) 100%);
  border-color: var(--c-primary-700);
  box-shadow: var(--shadow-pop);
}
.result-item.highlight .label { color: rgba(255,255,255,.85); }
.result-item.highlight .value { color: white; font-size: 1.5rem; }

.result-note {
  margin-top: 14px; padding: 12px 14px;
  background: var(--c-accent-50); border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-xs); font-size: .9rem; color: #78350F;
}

/* ============ TABLE ============ */
.calc-table {
  width: 100%; border-collapse: collapse; margin: 16px 0;
  font-size: .92rem; background: white;
  border-radius: var(--radius-sm); overflow: hidden;
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--c-line);
}
.calc-table th, .calc-table td {
  padding: 10px 12px; text-align: left;
  border-bottom: 1px solid var(--c-line);
}
.calc-table th { background: var(--c-surface-soft); font-weight: 700; font-size: .85rem; color: var(--c-ink-soft); }
.calc-table tr:last-child td { border-bottom: 0; }
.calc-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -4px; }

/* ============ INFO BLOCK ============ */
.info-block {
  background: var(--c-primary-50);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--radius-xs);
  padding: 16px 18px;
  margin: 20px 0;
  font-size: .94rem;
  color: var(--c-primary-700);
  line-height: 1.65;
}
.info-block strong { color: var(--c-primary-700); }

/* ============ ARTICLE ============ */
.calc-article {
  margin-top: 32px; padding-top: 28px;
  border-top: 1px solid var(--c-line);
}
.calc-article h2 { margin-top: 26px; font-size: 1.4rem; }
.calc-article h3 { margin-top: 20px; }
.calc-article ul, .calc-article ol { padding-left: 22px; }
.calc-article li { margin-bottom: 6px; }
.calc-article pre {
  background: var(--c-ink); color: #E2E8F0;
  padding: 16px; border-radius: var(--radius-sm); overflow: auto;
  font-family: var(--font-mono); font-size: .85rem;
  line-height: 1.6;
}

/* ============ SIDEBAR ============ */
.calc-sidebar { display: flex; flex-direction: column; gap: 18px; }
@media (min-width: 960px) {
  .calc-sidebar { position: sticky; top: 80px; align-self: start; max-height: calc(100vh - 90px); overflow-y: auto; padding-right: 4px; }
  .calc-sidebar::-webkit-scrollbar { width: 6px; }
  .calc-sidebar::-webkit-scrollbar-thumb { background: var(--c-line-strong); border-radius: 3px; }
}
.sidebar-box {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-xs);
}
.sidebar-box h3 {
  margin: 0 0 14px; font-size: .95rem;
  display: flex; align-items: center; gap: 8px;
  color: var(--c-ink);
}
.sidebar-list { list-style: none; margin: 0; padding: 0; }
.sidebar-list li { border-bottom: 1px solid var(--c-line); }
.sidebar-list li:last-child { border-bottom: 0; }
.sidebar-list a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0; font-size: .92rem; color: var(--c-ink);
  font-weight: 500;
}
.sidebar-list a:hover { color: var(--c-primary); }
.sidebar-list .icon { font-size: 1.1rem; width: 22px; text-align: center; }

/* ============ AD SLOTS ============ */
.ad-slot {
  position: relative;
  margin: 24px 0;
  text-align: center;
  background:
    repeating-linear-gradient(45deg, var(--c-surface-soft) 0 10px, white 10px 20px);
  border: 1.5px dashed var(--c-line-strong);
  border-radius: var(--radius-sm);
  padding: 16px;
  min-height: 100px;
  display: flex; align-items: center; justify-content: center;
  color: var(--c-ink-mute); font-size: .85rem;
  overflow: hidden;
}
.ad-slot::before {
  content: "IKLAN";
  position: absolute; top: 8px; left: 12px;
  font-size: .65rem; font-weight: 700; letter-spacing: .12em;
  color: var(--c-ink-mute);
  background: white; padding: 2px 8px; border-radius: var(--radius-pill);
  border: 1px solid var(--c-line);
}
.ad-slot .ad-placeholder {
  font-size: .82rem;
  color: var(--c-ink-mute);
  font-weight: 500;
}
.ad-slot .ad-placeholder strong { color: var(--c-ink-soft); display: block; margin-bottom: 2px; font-size: .92rem; }

.ad-slot.ad-top    { min-height: 120px; }
.ad-slot.ad-bottom { min-height: 120px; margin-top: 32px; }
.ad-slot.ad-mid    { min-height: 280px; }
.ad-slot.ad-sidebar{ min-height: 260px; }
.ad-slot.ad-leaderboard { min-height: 100px; max-width: 970px; margin-left: auto; margin-right: auto; }

/* AdSense iframe akan auto-fit */
.ad-slot ins.adsbygoogle { display: block; width: 100%; min-height: inherit; }
.ad-slot.has-ad {
  background: white;
  border: 1px solid var(--c-line);
}
.ad-slot.has-ad::before { display: none; }

/* ============ RELATED ============ */
.related-section {
  margin: 48px -16px 0;
  padding: 32px 16px 8px;
  background: white;
  border-top: 1px solid var(--c-line);
}
.related-title {
  text-align: center;
  font-size: 1.3rem;
  margin-bottom: 22px;
}

/* ============ FOOTER ============ */
.site-footer {
  background: var(--c-ink);
  color: #C5C9D6;
  padding: 44px 0 22px;
  margin-top: 40px;
}
.site-footer a { color: #C5C9D6; }
.site-footer a:hover { color: white; }
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 28px;
  margin-bottom: 28px;
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; } }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.footer-brand .logo {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-700) 100%);
  border-radius: 10px; font-size: 20px;
}
.footer-logo-img {
  width: 40px; height: 40px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}
.footer-title { color: white; font-size: .98rem; margin: 0 0 12px; font-weight: 700; }
.footer-text  { font-size: .88rem; line-height: 1.6; color: #8A91A6; }
.footer-list  { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin-bottom: 8px; }
.footer-list a { font-size: .88rem; }
.footer-bottom {
  border-top: 1px solid #1B2030;
  padding-top: 18px;
  text-align: center;
  font-size: .82rem;
  color: #6A7188;
}
.footer-bottom p { margin: 0 0 6px; }
.footer-disclaimer { font-size: .78rem; }

/* ============ UTILITY ============ */
.text-center { text-align: center; }
.text-muted  { color: var(--c-ink-mute); }
.text-soft   { color: var(--c-ink-soft); }
.small       { font-size: .85rem; }
.mt-4 { margin-top: 1rem; } .mt-6 { margin-top: 1.5rem; } .mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; } .mb-6 { margin-bottom: 1.5rem; } .mb-8 { margin-bottom: 2rem; }

/* ============ DESKTOP NAV ============ */
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .site-nav {
    display: flex !important;
    flex-direction: row;
    width: auto;
    background: transparent;
    border-top: 0;
    padding: 0;
    gap: 4px;
    align-items: center;
  }
  .site-nav a {
    padding: 9px 14px;
    border-bottom: 0;
    border-radius: var(--radius-pill);
    font-size: .9rem;
    font-weight: 600;
  }
  .site-nav a:hover { background: var(--c-primary-50); color: var(--c-primary); }
}

/* ============ TOM SELECT — override agar match 2-color system ============ */
.ts-wrapper { font-family: var(--font-sans); }
.ts-wrapper .ts-control {
  padding: 11px 14px !important;
  font-size: 1rem;
  border: 1.5px solid var(--c-line-strong);
  border-radius: var(--radius-sm) !important;
  background: white;
  min-height: 46px;
  box-shadow: none !important;
  transition: border-color .15s, box-shadow .15s;
}
.ts-wrapper.focus .ts-control,
.ts-wrapper.dropdown-active .ts-control {
  border-color: var(--c-primary) !important;
  box-shadow: 0 0 0 4px var(--c-primary-50) !important;
}
.ts-wrapper .ts-control > input { font-family: inherit; color: var(--c-ink); }
.ts-wrapper .ts-control > .item { font-weight: 500; color: var(--c-ink); }
.ts-dropdown {
  border: 1px solid var(--c-line) !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-lg) !important;
  margin-top: 6px;
  font-family: var(--font-sans);
  overflow: hidden;
}
.ts-dropdown .option {
  padding: 10px 14px !important;
  font-size: .95rem;
  color: var(--c-ink);
}
.ts-dropdown .option:hover,
.ts-dropdown .option.active {
  background: var(--c-primary-50) !important;
  color: var(--c-primary-700) !important;
}
.ts-dropdown .option.selected { background: var(--c-primary-100) !important; color: var(--c-primary-700); font-weight: 600; }
.ts-dropdown .no-results { padding: 12px 14px; color: var(--c-ink-mute); font-size: .9rem; }

/* ============ BOOTSTRAP DATEPICKER — override agar match 2-color system ============ */
.datepicker {
  font-family: var(--font-sans);
  border: 1px solid var(--c-line) !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-lg) !important;
  padding: 8px;
}
.datepicker table { font-size: .92rem; }
.datepicker table tr td, .datepicker table tr th { border-radius: 8px; width: 36px; height: 36px; }
.datepicker table tr td.day:hover,
.datepicker table tr td.focused { background: var(--c-primary-50) !important; color: var(--c-primary-700); }
.datepicker table tr td.active,
.datepicker table tr td.active.active,
.datepicker table tr td.active:hover {
  background: var(--c-primary) !important;
  color: white !important;
  text-shadow: none !important;
  background-image: none !important;
}
.datepicker table tr td.today {
  background: var(--c-accent-50) !important;
  color: var(--c-accent-600) !important;
  background-image: none !important;
  font-weight: 700;
}
.datepicker table tr td.today.active { background: var(--c-primary) !important; color: white !important; }
.datepicker .datepicker-switch:hover,
.datepicker .prev:hover, .datepicker .next:hover { background: var(--c-primary-50) !important; color: var(--c-primary-700); }
.datepicker thead tr:first-child th { background: white; color: var(--c-ink); font-weight: 700; }
.datepicker thead tr th.dow { color: var(--c-ink-mute); font-size: .78rem; font-weight: 600; text-transform: uppercase; }

/* Input that hosts datepicker — calendar icon di kanan + cursor pointer
   !important diperlukan agar tidak ke-override oleh .form-row input[type=text] shorthand */
input.js-datepicker,
.form-row input.js-datepicker {
  background-color: white !important;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234F46E5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><rect x='3' y='4' width='18' height='18' rx='2' ry='2'/><line x1='16' y1='2' x2='16' y2='6'/><line x1='8' y1='2' x2='8' y2='6'/><line x1='3' y1='10' x2='21' y2='10'/></svg>") !important;
  background-repeat: no-repeat !important;
  background-position: right 12px center !important;
  background-size: 20px !important;
  padding-right: 44px !important;
  cursor: pointer;
}
input.js-datepicker:hover { background-color: var(--c-primary-50) !important; }
input.js-datepicker[readonly] { user-select: none; }

/* Bootstrap Datepicker butuh .dropdown-menu base dari Bootstrap CSS.
   Kita tidak load Bootstrap, jadi harus sediakan sendiri di sini. */
.datepicker.datepicker-dropdown.dropdown-menu {
  position: absolute !important;
  display: block;
  z-index: 1060 !important;
  min-width: 240px;
  margin-top: 4px;
  background: white;
}
.datepicker.datepicker-inline { display: block; }

/* ============ PRINT ============ */
@media print {
  .site-header, .site-footer, .calc-sidebar, .ad-slot, .related-section, .form-actions { display: none; }
  body { background: white; }
  .calc-main { border: 0; box-shadow: none; padding: 0; }
}

/* ==========================================================================
   MOBILE UX HARDENING — iPhone notch, iOS no-zoom, touch targets, dll
   ========================================================================== */

/* === Safe area inset untuk iPhone notch & home indicator === */
body {
  /* Padding bottom diferensial untuk iPhone safe area (home indicator) */
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.site-header {
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
}
.site-header .header-inner {
  /* Notch-aware top padding bila app dipasang sebagai PWA fullscreen */
  padding-top: max(12px, env(safe-area-inset-top, 12px));
}
.site-footer .container {
  padding-left: max(16px, env(safe-area-inset-left, 16px));
  padding-right: max(16px, env(safe-area-inset-right, 16px));
}
.container {
  /* Notch landscape mode iPhone */
  padding-left: max(16px, env(safe-area-inset-left, 16px));
  padding-right: max(16px, env(safe-area-inset-right, 16px));
}

/* === Tap highlight color override (default abu-abu jelek) === */
* {
  -webkit-tap-highlight-color: rgba(79, 70, 229, 0.12);
}
button, a, input[type="submit"], input[type="button"], .btn, [role="button"] {
  -webkit-touch-callout: none; /* disable long-press menu di tombol */
}

/* === iOS NO-ZOOM on input focus (font-size HARUS >= 16px) === */
@media (max-width: 768px) {
  .form-row input[type="text"],
  .form-row input[type="number"],
  .form-row input[type="date"],
  .form-row input[type="email"],
  .form-row input[type="tel"],
  .form-row input[type="search"],
  .form-row select,
  .form-row textarea,
  input[type="text"], input[type="number"], input[type="date"],
  input[type="email"], input[type="tel"], input[type="search"],
  select, textarea {
    font-size: 16px !important;     /* iOS Safari syarat min 16px supaya tidak auto-zoom */
  }
}

/* === Touch targets minimum 44×44 (Apple HIG) di mobile === */
@media (max-width: 768px) {
  .btn,
  .nav-toggle,
  .site-nav a,
  .form-actions button,
  button:not(.refresh-btn):not(.tarif-presets button):not(.preset-bar button) {
    min-height: 44px;
  }
  .form-row input,
  .form-row select {
    min-height: 46px;     /* sedikit lebih besar dari btn untuk fingertip */
  }
  .form-row .input-group input,
  .form-row .input-group select {
    min-height: auto;     /* hindari double padding di input-group */
  }
  .form-row .input-group { min-height: 46px; }
  .nav-toggle { width: 44px; height: 44px; }

  /* Spacing antar tombol di form-actions agar tidak salah tap */
  .form-actions { gap: 8px; }
  .form-actions .btn { flex: 1 1 calc(50% - 4px); min-width: 0; }
}

/* === Responsive TABLE: auto overflow-x di mobile untuk tabel kalkulator === */
@media (max-width: 768px) {
  .calc-table,
  .ref-table,
  .rank-table,
  .compare-table,
  .kpr-matrix,
  .umkm-table,
  .crypto-list,
  .potongan-table,
  .status-table,
  .bunga-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    /* Scrollbar tipis */
    scrollbar-width: thin;
    scrollbar-color: var(--c-line-strong) transparent;
  }
  .calc-table thead,
  .calc-table tbody,
  .calc-table tr { white-space: normal; }
  /* Indikator scrollable: gradient fade di edge */
  .calc-table::-webkit-scrollbar { height: 6px; }
  .calc-table::-webkit-scrollbar-thumb { background: var(--c-line-strong); border-radius: 3px; }
}

/* === Hover state HANYA untuk device yang memang punya hover (bukan touch) === */
@media (hover: none) {
  .btn:hover,
  .btn-secondary:hover,
  .btn-share:hover,
  a:hover,
  .calc-card:hover,
  .zakat-hub-card:hover {
    /* Reset hover effects yang stuck di mobile setelah tap */
    transform: none !important;
    filter: none !important;
    box-shadow: var(--shadow-sm) !important;
  }
}

/* === Active state lebih jelas di mobile (replace hover) === */
@media (hover: none) {
  .btn:active { transform: translateY(1px); filter: brightness(.95); }
  .calc-card:active,
  .zakat-hub-card:active { background: var(--c-primary-50); }
}

/* === PWA install banner respect safe-area iPhone === */
.pwa-install-banner {
  bottom: max(16px, env(safe-area-inset-bottom, 16px)) !important;
  left: max(16px, env(safe-area-inset-left, 16px)) !important;
  right: max(16px, env(safe-area-inset-right, 16px)) !important;
}

/* === Custom scrollbar (thin & branded) === */
@media (min-width: 769px) {
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: var(--c-bg); }
  ::-webkit-scrollbar-thumb {
    background: var(--c-line-strong);
    border-radius: 5px;
    border: 2px solid var(--c-bg);
  }
  ::-webkit-scrollbar-thumb:hover { background: var(--c-ink-mute); }
}

/* === Input ribuan rupiah jangan terlihat aneh di mobile === */
input[inputmode="numeric"],
input[inputmode="decimal"] {
  font-variant-numeric: tabular-nums;
}

/* === Body lock saat nav-open di mobile === */
body.nav-open { overflow: hidden; }
body.nav-open .site-nav {
  /* Pastikan nav drawer sliding tidak ketutup safe area */
  padding-top: max(16px, env(safe-area-inset-top, 16px));
  padding-bottom: max(16px, env(safe-area-inset-bottom, 16px));
}

/* === Focus visible (keyboard navigation, accessibility) === */
*:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.btn:focus-visible {
  outline-offset: 3px;
}

/* === Image lazy-load placeholder (smooth fade-in) === */
img[loading="lazy"] {
  transition: opacity .3s ease;
}

/* === Prevent text overflow di small screens === */
@media (max-width: 480px) {
  h1 { word-break: break-word; hyphens: auto; }
  .calc-head h1 { gap: 8px; flex-wrap: wrap; }
  .calc-head h1 .icon { width: 42px; height: 42px; font-size: 1.4rem; }
  .breadcrumb { font-size: .75rem; }
  .calc-form { padding: 16px; }
  .calc-main { padding: 16px; border-radius: 14px; }
}

/* === Reduce motion preference (accessibility) === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === Sticky header tetap bisa diakses saat keyboard mobile muncul === */
@supports (-webkit-touch-callout: none) {
  /* iOS-specific: kurangi sticky behavior saat input focused supaya tidak overlap */
  .site-header { -webkit-transform: translateZ(0); }
}

/* === Skeleton loading state untuk async data (mis. harga emas) === */
.skeleton {
  background: linear-gradient(90deg, #f0f1f5 25%, #e6e8ef 50%, #f0f1f5 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s infinite;
  border-radius: 8px;
  color: transparent;
}
@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* === Sidebar di mobile: collapse to bottom dengan padding generous === */
@media (max-width: 959px) {
  .calc-sidebar {
    margin-top: 16px;
  }
  .sidebar-box {
    /* Compact list di mobile */
    padding: 16px;
  }
  .sidebar-list li a { padding: 10px 12px; min-height: 40px; display: flex; align-items: center; }
}

/* === Form group readability di small screen === */
@media (max-width: 480px) {
  .form-row label { font-size: .9rem; }
  .form-row label .hint { display: block; margin-top: 2px; font-size: .75rem; }
}

/* === Ad slot tidak overflow di small viewport === */
.ad-slot { max-width: 100%; overflow: hidden; }
@media (max-width: 480px) {
  .ad-slot.ad-leaderboard { min-height: 100px; }
}

/* === Result section: spacing better di mobile === */
@media (max-width: 480px) {
  .result { padding: 16px; }
  .result h3 { font-size: 1.05rem; }
}

/* === Smooth iOS momentum scroll for any overflow container === */
.overflow-x-auto,
[style*="overflow-x:auto"],
[style*="overflow-x: auto"] {
  -webkit-overflow-scrolling: touch;
}