@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ===================== VARIABLES ===================== */
:root {
  --primary: #0A0A0A;
  --accent: #00C896;
  --accent-dark: #00A67E;
  --accent-light: #E6FBF5;
  --bg: #F7F8FA;
  --card: #FFFFFF;
  --border: #E8EAED;
  --text: #0A0A0A;
  --text-2: #5F6368;
  --text-3: #9AA0A6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --nav-h: 60px;
}

/* ===================== RESET ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1,h2,h3,h4 { font-family: 'Syne', sans-serif; line-height: 1.2; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { font-family: 'DM Sans', sans-serif; cursor: pointer; }

/* ===================== NAV ===================== */
nav {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0 16px;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 18px;
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--primary);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-links a:hover { background: var(--bg); color: var(--text); }
.nav-links a.active { color: var(--accent); }
.nav-cta { background: var(--primary) !important; color: #fff !important; border-radius: 8px; }
.nav-cta:hover { background: #222 !important; color: #fff !important; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
  cursor: pointer;
  flex-shrink: 0;
}
.hamburger span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; display: block; transition: all 0.3s; }

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    gap: 4px;
    box-shadow: var(--shadow-lg);
  }
  .nav-links.open li { width: 100%; }
  .nav-links.open a { display: block; width: 100%; padding: 10px 14px; font-size: 15px; }
}

/* ===================== LAYOUT ===================== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-dark { background: var(--primary); color: #fff; }
.btn-dark:hover { background: #222; }
.btn-outline { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ===================== CALCULATOR CARD ===================== */
.calc-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.calc-header { background: var(--primary); padding: 22px 24px; color: #fff; }
.calc-header h1 { font-size: clamp(18px, 4vw, 24px); font-weight: 700; color: #fff; margin-bottom: 4px; }
.calc-header p { font-size: 13px; color: rgba(255,255,255,0.55); }
.calc-body { padding: 20px 24px; }

/* ===================== FORM ===================== */
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  transition: all 0.2s;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-control:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(0,200,150,0.12); }
select.form-control { cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235F6368' d='M1 1l5 5 5-5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* Range slider */
input[type="range"] { width: 100%; height: 5px; -webkit-appearance: none; appearance: none; background: var(--border); border-radius: 99px; outline: none; cursor: pointer; margin-top: 10px; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; background: var(--accent); border-radius: 50%; border: 3px solid #fff; box-shadow: 0 1px 6px rgba(0,200,150,0.4); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; background: var(--accent); border-radius: 50%; border: 3px solid #fff; cursor: pointer; }
.range-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ===================== RESULT BOX ===================== */
.result-box {
  background: var(--primary);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-top: 20px;
  color: #fff;
}
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.result-item { text-align: center; padding: 4px; }
.result-label { font-size: 10px; color: rgba(255,255,255,0.5); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 5px; }
.result-value { font-family: 'Syne', sans-serif; font-size: clamp(16px, 4vw, 22px); font-weight: 700; color: var(--accent); word-break: break-all; }

@media (max-width: 380px) {
  .result-grid { grid-template-columns: 1fr 1fr; }
  .result-item:last-child { grid-column: 1/-1; }
}

/* ===================== PROMO BANNER ===================== */
.promo-banner {
  background: var(--accent-light);
  border: 1.5px solid rgba(0,200,150,0.25);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.promo-text { font-size: 13px; color: var(--text); flex: 1; min-width: 160px; }
.promo-text strong { color: var(--accent-dark); }
.promo-btn { background: var(--accent); color: #fff; padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500; white-space: nowrap; transition: all 0.2s; display: inline-block; flex-shrink: 0; }
.promo-btn:hover { background: var(--accent-dark); }

/* ===================== CALC PAGE GRID ===================== */
.calc-page-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .calc-page-grid { grid-template-columns: 1fr; }
  .calc-sidebar { display: none; }
}

/* ===================== CALCULATOR TILES ===================== */
.calc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.calc-tile {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.calc-tile:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.calc-tile:active { transform: translateY(0); }
.calc-tile-icon { width: 40px; height: 40px; background: var(--accent-light); border-radius: 11px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.calc-tile-name { font-family: 'Syne', sans-serif; font-size: 14px; font-weight: 600; color: var(--text); }
.calc-tile-desc { font-size: 12px; color: var(--text-2); line-height: 1.5; }
.calc-tile-arrow { margin-top: auto; font-size: 12px; color: var(--accent); font-weight: 500; }

@media (max-width: 480px) {
  .calc-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .calc-tile { padding: 14px; }
  .calc-tile-desc { display: none; }
}

/* ===================== CATEGORY BADGES ===================== */
.cat-badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 99px; font-size: 11px; font-weight: 500; }
.cat-finance { background: #E6FBF5; color: #00A67E; }
.cat-earnings { background: #FEF3E6; color: #D97706; }
.cat-utility { background: #EEF2FF; color: #4F46E5; }
.cat-business { background: #FEE2E2; color: #DC2626; }

/* ===================== SECTIONS ===================== */
.section { padding: 48px 0; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: var(--accent-light); color: var(--accent-dark); font-size: 11px; font-weight: 600; padding: 4px 12px; border-radius: 99px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.section-title { font-size: clamp(24px, 5vw, 38px); font-weight: 800; color: var(--text); margin-bottom: 10px; }
.section-sub { font-size: 15px; color: var(--text-2); max-width: 520px; }

/* ===================== BREADCRUMB ===================== */
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-3); margin-bottom: 20px; flex-wrap: wrap; }
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text); font-weight: 500; }

/* ===================== FAQ ===================== */
.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-q { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 600; color: var(--text); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-q::after { content: '+'; font-size: 22px; color: var(--accent); font-weight: 300; flex-shrink: 0; transition: transform 0.2s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { font-size: 14px; color: var(--text-2); line-height: 1.7; margin-top: 10px; display: none; }
.faq-item.open .faq-a { display: block; }

/* ===================== FOOTER ===================== */
footer { background: var(--primary); color: rgba(255,255,255,0.65); padding: 48px 16px 24px; }
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-logo { font-family: 'Syne', sans-serif; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; display: flex; align-items: center; gap: 9px; }
.footer-desc { font-size: 13px; line-height: 1.7; max-width: 260px; }
.footer-col h4 { font-family: 'Syne', sans-serif; font-size: 12px; font-weight: 700; color: #fff; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 14px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.footer-col ul li a { font-size: 13px; color: rgba(255,255,255,0.55); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { padding-top: 20px; display: flex; align-items: center; justify-content: space-between; font-size: 12px; flex-wrap: wrap; gap: 10px; }
.footer-bottom-links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-bottom-links a { color: rgba(255,255,255,0.45); }
.footer-bottom-links a:hover { color: var(--accent); }

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 24px; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===================== ANIMATIONS ===================== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.45s ease forwards; }
.fade-up-2 { animation: fadeUp 0.45s 0.1s ease forwards; opacity: 0; }
.fade-up-3 { animation: fadeUp 0.45s 0.18s ease forwards; opacity: 0; }

/* ===================== TOUCH TARGETS ===================== */
@media (max-width: 768px) {
  .btn { padding: 13px 20px; font-size: 15px; }
  .form-control { padding: 13px 14px; font-size: 16px; }
  .section { padding: 36px 0; }
  .calc-body { padding: 16px; }
  .calc-header { padding: 18px 16px; }
  .container { padding: 0 14px; }
}

/* ===================== GST BUTTONS ===================== */
.gst-btn { padding: 10px 6px; border: 1.5px solid var(--border); border-radius: 8px; background: #fff; font-family: 'DM Sans', sans-serif; font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s; color: var(--text); width: 100%; }
.gst-btn:hover { border-color: var(--accent); color: var(--accent); }
.gst-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===================== STAR RATING ===================== */
.star-sel { font-size: 30px; cursor: pointer; transition: transform 0.15s; display: inline-block; color: #D1D5DB; touch-action: manipulation; padding: 4px; }

/* ===================== AMORTIZATION TABLE ===================== */
.amort-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.amort-table th { padding: 10px 14px; text-align: left; font-size: 11px; color: var(--text-2); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; border-bottom: 1px solid var(--border); background: var(--bg); white-space: nowrap; }
.amort-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
@media (max-width: 480px) {
  .amort-table th, .amort-table td { padding: 8px 10px; }
}