/* =====================================================
   Priya Life Science — Pharma Tools Hub
   Shared Design System — core.css
   tools.priyalifescience.com
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=DM+Sans:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --g:   #66B539;
  --gd:  #4a8a28;
  --gl:  #E8F7DD;
  --gp:  #f2fbea;
  --gl2: #e8eef2;
  --dk:  #0d1210;
  --d2:  #374148;
  --wh:  #ffffff;
  --of:  #f8faf5;
  --gr:  #6b7c85;
  --fh:  'Playfair Display', Georgia, serif;
  --fb:  'DM Sans', system-ui, sans-serif;
  --tr:  all .28s cubic-bezier(.4,0,.2,1);
  --r:   12px;
  --sh:  0 2px 16px rgba(0,0,0,.07);
  --shh: 0 8px 32px rgba(0,0,0,.13);
}

html { scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: var(--fb); background: var(--of); color: var(--dk); line-height: 1.65; overflow-x: hidden; min-height: 100vh; display: flex; flex-direction: column; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; height: auto; }
main { flex: 1; }

/* ── TOPBAR ── */
.topbar {
  background: var(--dk);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar-inner {
  max-width: 1240px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.topbar-brand {
  display: flex; align-items: center; gap: 10px; color: #fff; font-size: 13px; font-weight: 600;
}
.topbar-brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--g); flex-shrink: 0; }
.topbar-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: rgba(255,255,255,.55);
  transition: var(--tr);
}
.topbar-back:hover { color: var(--g); }
.topbar-back svg { width: 13px; height: 13px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ── NAVBAR ── */
nav.sitenav {
  position: sticky; top: 0; z-index: 999;
  background: #fff; border-bottom: 2px solid var(--gl2);
  box-shadow: 0 1px 12px rgba(0,0,0,.06);
}
.nw {
  max-width: 1240px; margin: 0 auto; padding: 0 24px;
  height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.nlogo { display: flex; align-items: center; gap: 10px; }
.nlogo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--g); display: flex; align-items: center; justify-content: center;
}
.nlogo-mark svg { width: 20px; height: 20px; stroke: #fff; fill: none; stroke-width: 2.5; }
.nlogo-text { display: flex; flex-direction: column; line-height: 1.1; }
.nlogo-name { font-family: var(--fh); font-size: 16px; font-weight: 900; color: var(--dk); }
.nlogo-sub { font-size: 10px; font-weight: 700; color: var(--g); text-transform: uppercase; letter-spacing: .1em; }
.nlinks { display: flex; align-items: center; gap: 4px; }
.nlinks a {
  font-size: 13px; font-weight: 600; color: var(--d2);
  padding: 7px 14px; border-radius: 8px; transition: var(--tr); white-space: nowrap;
}
.nlinks a:hover, .nlinks a.act { color: var(--g); background: var(--gp); }
.n-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--g); color: #fff; font-size: 13px; font-weight: 700;
  padding: 9px 20px; border-radius: 100px; transition: var(--tr); white-space: nowrap;
}
.n-cta:hover { background: var(--gd); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(102,181,57,.4); }

/* ── HERO ── */
.hero {
  background: var(--dk); padding: 90px 24px 110px;
  text-align: center; position: relative; overflow: hidden; z-index: 1;
}
.glow-box { position: absolute; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.glow {
  position: absolute; border-radius: 50%;
  filter: blur(140px); opacity: .22;
  animation: glow-move 30s infinite ease-in-out alternate;
}
.glow-1 { background: radial-gradient(circle, var(--g) 0%, transparent 70%); width: 600px; height: 600px; top: -20%; left: -10%; animation-duration: 35s; }
.glow-2 { background: radial-gradient(circle, #0a66c2 0%, transparent 70%); width: 500px; height: 500px; bottom: -20%; right: -10%; animation-duration: 45s; animation-delay: -5s; }
.glow-3 { background: radial-gradient(circle, #1a3a2a 0%, transparent 70%); width: 400px; height: 400px; top: 30%; left: 40%; animation-duration: 28s; animation-delay: -10s; }
@keyframes glow-move {
  0%   { transform: translate(0,0) scale(1); }
  33%  { transform: translate(40px,60px) scale(1.1); }
  66%  { transform: translate(-30px,30px) scale(.9); }
  100% { transform: translate(0,0) scale(1); }
}
.hero-inner { max-width: 820px; margin: 0 auto; position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(102,181,57,.12); border: 1px solid rgba(102,181,57,.25);
  padding: 8px 20px; border-radius: 100px;
  font-size: 11px; font-weight: 800; color: var(--g);
  text-transform: uppercase; letter-spacing: .15em; margin-bottom: 24px;
}
.hero h1 {
  font-family: var(--fh); font-size: clamp(32px, 5.5vw, 58px);
  font-weight: 900; color: #fff; line-height: 1.1; margin-bottom: 20px; letter-spacing: -.02em;
}
.hero h1 em {
  background: linear-gradient(to right, var(--g), #a3e635);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-style: normal;
}
.hero p { font-size: 18px; color: rgba(255,255,255,.58); line-height: 1.65; max-width: 600px; margin: 0 auto 40px; }
.hero-stats { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-n { font-family: var(--fh); font-size: 34px; font-weight: 900; color: #fff; }
.hero-stat-l { font-size: 11px; font-weight: 700; color: rgba(255,255,255,.35); text-transform: uppercase; letter-spacing: .1em; margin-top: 4px; }

/* ── TOOL CARDS GRID ── */
.tools-section { max-width: 1200px; margin: -52px auto 0; padding: 0 24px 80px; position: relative; z-index: 3; }
.section-label {
  display: flex; align-items: center; gap: 14px; margin-bottom: 28px;
}
.section-label-line { flex: 1; height: 1px; background: var(--gl2); }
.section-label-text { font-size: 11px; font-weight: 800; color: var(--gr); text-transform: uppercase; letter-spacing: .14em; white-space: nowrap; }
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.tool-card {
  background: rgba(255,255,255,.92); backdrop-filter: blur(12px);
  border: 1px solid var(--gl2); border-radius: 20px; padding: 32px;
  display: flex; flex-direction: column; gap: 0;
  transition: var(--tr); position: relative; overflow: hidden;
  cursor: default;
}
.tool-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--g); opacity: 0; transition: var(--tr);
}
.tool-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,.1); border-color: var(--g); background: #fff; }
.tool-card:hover::before { opacity: 1; }
.tool-card.featured { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 32px; background: linear-gradient(135deg, var(--g) 0%, var(--gd) 100%); border: none; }
.tool-card.featured:hover { box-shadow: 0 16px 48px rgba(102,181,57,.4); }
.tool-card.featured::before { background: rgba(255,255,255,.3); }
.tool-icon {
  width: 54px; height: 54px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px; flex-shrink: 0;
}
.tool-icon svg { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 2; }
.tool-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em;
  padding: 4px 12px; border-radius: 100px; margin-bottom: 14px; width: fit-content;
}
.badge-live { background: #dcfce7; color: #166534; }
.badge-new  { background: #dbeafe; color: #1e40af; }
.badge-pro  { background: #ede9fe; color: #5b21b6; }
.tool-name { font-family: var(--fh); font-size: 20px; font-weight: 900; color: var(--dk); margin-bottom: 10px; letter-spacing: -.01em; }
.featured .tool-name { color: #fff; font-size: 24px; }
.tool-desc { font-size: 14px; color: var(--gr); line-height: 1.6; margin-bottom: 20px; flex: 1; }
.featured .tool-desc { color: rgba(255,255,255,.75); }
.tool-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.tool-tag { font-size: 11px; font-weight: 600; color: var(--d2); background: var(--of); border: 1px solid var(--gl2); padding: 3px 11px; border-radius: 100px; }
.featured .tool-tag { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.2); color: #fff; }
.tool-link {
  display: inline-flex; align-items: center; gap: 8px; margin-top: auto;
  font-size: 14px; font-weight: 700; color: var(--g); transition: var(--tr);
}
.tool-link:hover { gap: 12px; color: var(--gd); }
.tool-link svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2.5; transition: transform .2s; }
.tool-link:hover svg { transform: translateX(3px); }
.tool-link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--g);
  padding: 12px 24px; border-radius: 100px;
  font-size: 14px; font-weight: 700; transition: var(--tr);
}
.tool-link-btn:hover { background: var(--gp); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.15); }

/* ── TOOL PAGE LAYOUT ── */
.tool-page { max-width: 1100px; margin: 0 auto; padding: 40px 24px 80px; }
.tool-page-header { margin-bottom: 40px; }
.tool-page-header .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--gr); margin-bottom: 20px; }
.tool-page-header .breadcrumb a { color: var(--g); }
.tool-page-header .breadcrumb svg { width: 12px; height: 12px; stroke: var(--gr); fill: none; stroke-width: 2; }
.tool-hero-badge {
  display: inline-flex; align-items: center; gap: 6px; margin-bottom: 14px;
  background: var(--gp); border: 1px solid var(--gl); color: var(--gd);
  font-size: 11px; font-weight: 800; padding: 5px 14px; border-radius: 100px;
  text-transform: uppercase; letter-spacing: .12em;
}
.tool-page-header h1 {
  font-family: var(--fh); font-size: clamp(26px, 4vw, 42px);
  font-weight: 900; color: var(--dk); margin-bottom: 14px; line-height: 1.15;
}
.tool-page-header p { font-size: 16px; color: var(--gr); max-width: 680px; line-height: 1.65; }
.tool-body { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.tool-body.single { grid-template-columns: 1fr; max-width: 720px; }
.tool-body.wide { grid-template-columns: 1.2fr 0.8fr; }

/* ── CALCULATOR PANEL ── */
.calc-panel {
  background: #fff; border: 1px solid var(--gl2); border-radius: 20px;
  padding: 28px; box-shadow: var(--sh);
}
.calc-panel h2 { font-family: var(--fh); font-size: 18px; font-weight: 900; color: var(--dk); margin-bottom: 22px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.form-group label { font-size: 13px; font-weight: 700; color: var(--d2); }
.form-group small { font-size: 11px; color: var(--gr); }
.form-control {
  width: 100%; padding: 11px 14px; border: 1.5px solid var(--gl2);
  border-radius: 10px; font-family: var(--fb); font-size: 14px; color: var(--dk);
  background: var(--of); transition: var(--tr); outline: none;
}
.form-control:focus { border-color: var(--g); background: #fff; box-shadow: 0 0 0 3px rgba(102,181,57,.12); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.calc-btn {
  width: 100%; padding: 14px; background: var(--g); color: #fff;
  border: none; border-radius: 12px; font-family: var(--fb);
  font-size: 15px; font-weight: 700; cursor: pointer; transition: var(--tr); margin-top: 8px;
}
.calc-btn:hover { background: var(--gd); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(102,181,57,.35); }
.calc-btn:active { transform: translateY(0); }
.btn-secondary {
  width: 100%; padding: 11px; background: transparent; color: var(--gr);
  border: 1.5px solid var(--gl2); border-radius: 12px; font-family: var(--fb);
  font-size: 13px; font-weight: 600; cursor: pointer; transition: var(--tr); margin-top: 8px;
}
.btn-secondary:hover { border-color: var(--g); color: var(--g); background: var(--gp); }

/* ── RESULTS PANEL ── */
.results-panel {
  background: #fff; border: 1px solid var(--gl2); border-radius: 20px;
  padding: 28px; box-shadow: var(--sh);
}
.results-panel h2 { font-family: var(--fh); font-size: 18px; font-weight: 900; color: var(--dk); margin-bottom: 22px; }
.result-empty { text-align: center; padding: 40px 20px; color: var(--gr); font-size: 14px; }
.result-empty svg { width: 44px; height: 44px; stroke: var(--gl2); fill: none; stroke-width: 1.5; margin: 0 auto 12px; display: block; }
.result-main {
  background: var(--gp); border: 2px solid var(--gl); border-radius: 14px;
  padding: 22px; text-align: center; margin-bottom: 20px;
}
.result-main.warn { background: #fff7ed; border-color: #fed7aa; }
.result-main.fail { background: #fff1f2; border-color: #fecdd3; }
.result-label { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; color: var(--gr); margin-bottom: 8px; }
.result-value { font-family: var(--fh); font-size: 48px; font-weight: 900; color: var(--gd); line-height: 1; }
.result-value.warn { color: #c2410c; }
.result-value.fail { color: #be123c; }
.result-verdict { font-size: 13px; font-weight: 700; margin-top: 8px; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.result-item { background: var(--of); border: 1px solid var(--gl2); border-radius: 10px; padding: 14px; }
.result-item-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--gr); margin-bottom: 4px; }
.result-item-value { font-size: 20px; font-weight: 800; color: var(--dk); }

/* ── TABLE ── */
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 12px; }
.data-table th { background: var(--dk); color: #fff; padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.data-table th:first-child { border-radius: 8px 0 0 0; }
.data-table th:last-child { border-radius: 0 8px 0 0; }
.data-table td { padding: 10px 14px; border-bottom: 1px solid var(--gl2); color: var(--dk); }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--of); }
.data-table input[type="number"], .data-table input[type="text"] {
  width: 100%; padding: 6px 10px; border: 1.5px solid var(--gl2); border-radius: 8px;
  font-family: var(--fb); font-size: 13px; background: var(--of); color: var(--dk);
  transition: var(--tr); outline: none;
}
.data-table input:focus { border-color: var(--g); background: #fff; }

/* ── BADGES / STATUS ── */
.status-pass { color: #166534; background: #dcfce7; border: 1px solid #a7f3d0; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 800; display: inline-block; }
.status-warn { color: #854d0e; background: #fef3c7; border: 1px solid #fde68a; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 800; display: inline-block; }
.status-fail { color: #9f1239; background: #ffe4e6; border: 1px solid #fecdd3; padding: 4px 12px; border-radius: 100px; font-size: 12px; font-weight: 800; display: inline-block; }

/* ── RPN HEATMAP ── */
.rpn-low  { background: #d1fae5; color: #065f46; }
.rpn-med  { background: #fef3c7; color: #92400e; }
.rpn-high { background: #fee2e2; color: #9f1239; }
.rpn-crit { background: #7f1d1d; color: #fff; }

/* ── INFO BOX ── */
.info-box {
  background: var(--gp); border: 1px solid var(--gl); border-radius: 12px;
  padding: 16px 18px; font-size: 13px; line-height: 1.6; color: var(--d2); margin-top: 16px;
}
.info-box strong { color: var(--gd); }
.info-box.note { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.info-box.warn { background: #fff7ed; border-color: #fed7aa; color: #9a3412; }

/* ── CANVAS / CHART ── */
.chart-wrap { background: #fff; border: 1px solid var(--gl2); border-radius: 16px; padding: 20px; margin-top: 16px; }
.chart-wrap canvas { display: block; width: 100% !important; height: auto; }

/* ── WHY SECTION ── */
.why-section { background: #fff; border-top: 1px solid var(--gl2); padding: 72px 24px; }
.why-inner { max-width: 1200px; margin: 0 auto; text-align: center; }
.why-inner h2 { font-family: var(--fh); font-size: 30px; font-weight: 900; margin-bottom: 12px; }
.why-inner > p { font-size: 15px; color: var(--gr); margin-bottom: 48px; max-width: 540px; margin-left: auto; margin-right: auto; }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { padding: 24px; }
.why-icon { width: 50px; height: 50px; border-radius: 14px; background: var(--gp); border: 1px solid var(--gl); display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.why-icon svg { width: 22px; height: 22px; stroke: var(--g); fill: none; stroke-width: 2; }
.why-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.why-desc { font-size: 13px; color: var(--gr); line-height: 1.6; }

/* ── REGULATORY FOOTER ── */
.reg-section { background: var(--gp); border-top: 1px solid var(--gl); padding: 20px 24px; }
.reg-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.reg-badge { background: var(--g); color: #fff; font-size: 10px; font-weight: 800; padding: 4px 12px; border-radius: 100px; white-space: nowrap; letter-spacing: .08em; text-transform: uppercase; }
.reg-text { font-size: 12px; color: var(--d2); line-height: 1.5; flex: 1; }

/* ── FOOTER ── */
footer { background: var(--dk); color: rgba(255,255,255,.6); padding: 60px 24px 28px; }
.ft-inner { max-width: 1200px; margin: 0 auto; }
.ft-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.ft-brand { font-family: var(--fh); font-size: 22px; font-weight: 900; color: #fff; margin-bottom: 14px; }
.ft-desc { font-size: 13.5px; line-height: 1.7; max-width: 320px; }
.ft-col-title { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 18px; text-transform: uppercase; letter-spacing: .08em; }
.ft-col { display: flex; flex-direction: column; gap: 12px; }
.ft-col a { font-size: 13px; transition: var(--tr); }
.ft-col a:hover { color: var(--g); transform: translateX(3px); display: inline-block; }
.ft-bot { border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; font-size: 12px; flex-wrap: wrap; gap: 12px; }
.ft-bot a:hover { color: var(--g); }

/* ── REVEAL ANIMATIONS ── */
.rv { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.rv.vis { opacity: 1; transform: translateY(0); }
.rv:nth-child(2) { transition-delay: .08s; }
.rv:nth-child(3) { transition-delay: .16s; }
.rv:nth-child(4) { transition-delay: .24s; }
.rv:nth-child(5) { transition-delay: .32s; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .tool-card.featured { grid-template-columns: 1fr; }
  .tool-body { grid-template-columns: 1fr; }
  .tool-body.wide { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .ft-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .hero { padding: 60px 24px 80px; }
  .tools-grid { grid-template-columns: 1fr; }
  .nlinks { display: none; }
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 28px; }
}
@media (max-width: 500px) {
  .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
}