/* ==========================================================================
   eClintrial — Global styles
   ========================================================================== */

:root {
  --teal: #0ea5a4;
  --blue: #2563eb;
  --navy: #0b1b34;
  --ink: #0f172a;
  --body: #475569;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f6f9fc;
  --radius: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
  --shadow-lg: 0 24px 48px -12px rgba(15, 23, 42, .18);
  --gradient: linear-gradient(135deg, var(--teal), var(--blue));
  --container: 1180px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 { color: var(--ink); line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: #fff; padding: .6rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; border-radius: 6px; }

/* Buttons ------------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .85rem 1.5rem; border-radius: 999px; border: 0;
  font: inherit; font-weight: 600; font-size: 1rem; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 8px 20px -6px rgba(37, 99, 235, .5); }
.btn-primary:hover { box-shadow: 0 12px 24px -6px rgba(37, 99, 235, .6); }
.btn-ghost { color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-light { background: #fff; color: var(--navy); }
.btn-sm { padding: .55rem 1.1rem; font-size: .92rem; }
.btn-block { width: 100%; }

.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal); margin-bottom: .9rem;
}
.eyebrow-light { color: #5eead4; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.2rem; color: var(--body); max-width: 36em; }

/* Header ------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(255, 255, 255, .85); backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-size: 1.35rem; color: var(--ink); font-weight: 500; }
.brand:hover { text-decoration: none; }
.brand strong { font-weight: 800; }
.brand-light { color: #fff; }
.nav-menu { display: flex; align-items: center; gap: 2rem; }
.nav-menu a:not(.btn) { color: var(--ink); font-weight: 500; font-size: .97rem; }
.nav-menu a:not(.btn):hover { color: var(--blue); text-decoration: none; }

.nav-toggle { display: none; background: none; border: 0; padding: .5rem; cursor: pointer; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero --------------------------------------------------------------------- */
.hero {
  position: relative; overflow: hidden; padding: 5rem 0 6rem;
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgba(37, 99, 235, .12), transparent 60%),
    radial-gradient(40rem 25rem at -10% 20%, rgba(14, 165, 164, .12), transparent 60%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 4rem; align-items: center; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 2rem 0; }
.hero-badges { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; padding: 0; margin: 0; }
.hero-badges li {
  font-size: .82rem; font-weight: 600; color: var(--ink);
  padding: .35rem .8rem; border: 1px solid var(--line); border-radius: 999px; background: #fff;
}

.hero-visual { position: relative; }
.dash-card { background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg); border: 1px solid var(--line); overflow: hidden; }
.dash-header { display: flex; align-items: center; gap: .4rem; padding: .9rem 1.2rem; border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #f87171; } .dot.amber { background: #fbbf24; } .dot.green { background: #34d399; }
.dash-title { margin-left: .6rem; font-size: .85rem; font-weight: 600; color: var(--ink); }
.dash-body { padding: 1.4rem; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; margin-bottom: 1.4rem; }
.kpi { background: var(--bg-alt); border-radius: 12px; padding: .8rem; }
.kpi-label { display: block; font-size: .75rem; color: var(--muted); }
.kpi-value { font-size: 1.5rem; font-weight: 800; color: var(--ink); }
.kpi-value small { font-size: .8rem; color: var(--muted); font-weight: 500; }
.progress-row { display: flex; justify-content: space-between; font-size: .82rem; color: var(--ink); font-weight: 500; }
.bar { height: 8px; background: var(--line); border-radius: 99px; margin: .3rem 0 .8rem; overflow: hidden; }
.bar span { display: block; height: 100%; background: var(--gradient); border-radius: inherit; }
.sparkline { margin-top: .6rem; }
.sparkline svg { width: 100%; height: 70px; }
.spark-label { font-size: .75rem; color: var(--muted); }

.float-card {
  position: absolute; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: .7rem 1rem; font-size: .85rem; font-weight: 600; color: var(--ink);
  box-shadow: var(--shadow-lg); animation: float 6s ease-in-out infinite;
}
.fc-1 { left: -2rem; bottom: -1.4rem; }
.fc-2 { right: -1.5rem; top: -1.4rem; animation-delay: -3s; }
@keyframes float { 50% { transform: translateY(-10px); } }

/* Stats -------------------------------------------------------------------- */
.stats { border-block: 1px solid var(--line); background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 2.2rem 1rem; text-align: center; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat-value { display: block; font-size: 2.4rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { font-size: .95rem; color: var(--muted); }

/* Sections ----------------------------------------------------------------- */
.section { padding: 6rem 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 760px; margin: 0 auto 3.5rem; text-align: center; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card p { margin: 0; }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(14, 165, 164, .12), rgba(37, 99, 235, .12)); margin-bottom: 1.2rem;
}
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: var(--blue); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; counter-reset: step; }
.step { position: relative; background: #fff; border-radius: var(--radius); padding: 2rem 1.6rem; border: 1px solid var(--line); }
.step p { margin: 0; font-size: .97rem; }
.step-num { display: block; font-size: 2.2rem; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--teal); margin-bottom: .6rem; }

/* Tabs */
.tabs { display: flex; justify-content: center; gap: .5rem; flex-wrap: wrap; margin-bottom: 2rem; }
.tabs button {
  font: inherit; font-weight: 600; padding: .65rem 1.4rem; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: #fff; color: var(--ink); transition: all .2s;
}
.tabs button[aria-selected="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.tab-panel {
  max-width: 820px; margin: 0 auto; padding: 2.5rem; border-radius: 20px;
  background: linear-gradient(135deg, rgba(14, 165, 164, .06), rgba(37, 99, 235, .06));
  border: 1px solid var(--line);
}
.checklist { list-style: none; padding: 0; margin: 1.2rem 0 0; display: grid; gap: .6rem; }
.checklist li { position: relative; padding-left: 2rem; color: var(--ink); font-weight: 500; }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: .1rem; width: 1.35rem; height: 1.35rem;
  border-radius: 50%; background: var(--gradient); color: #fff; font-size: .75rem;
  display: grid; place-items: center; font-weight: 700;
}

/* Compliance (dark) */
.section-dark { background: var(--navy); color: #cbd5e1; position: relative; overflow: hidden; }
.section-dark::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(40rem 20rem at 100% 0%, rgba(14, 165, 164, .25), transparent 60%);
  pointer-events: none;
}
.section-dark h2 { color: #fff; }
.compliance-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.compliance-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }
.compliance-list li {
  padding: 1.1rem 1.3rem; border-radius: 14px; background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
}
.compliance-list strong { display: block; color: #fff; }
.compliance-list span { font-size: .93rem; }

/* Quotes */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.quote { margin: 0; padding: 2rem; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; display: flex; flex-direction: column; justify-content: space-between; }
.quote blockquote { margin: 0 0 1.5rem; color: var(--ink); font-size: 1.05rem; }
.quote figcaption strong { display: block; color: var(--ink); font-size: .95rem; }
.quote figcaption span { font-size: .88rem; color: var(--muted); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: center; }
.values { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.value { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.value h3 { font-size: 1.05rem; }
.value p { margin: 0; font-size: .93rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; align-items: start; }
.contact-grid > *, .form-row > * { min-width: 0; }
.contact-info { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: .8rem; }
.contact-info li { display: flex; flex-wrap: wrap; gap: 0 1rem; }
.contact-info span { min-width: 5rem; font-weight: 600; color: var(--ink); }
.contact-form {
  display: grid; gap: 1rem; padding: 2rem; border-radius: 20px; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow-lg);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.contact-form label { display: grid; gap: .35rem; font-size: .9rem; font-weight: 600; color: var(--ink); }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit; font-weight: 400; font-size: 1rem; color: var(--ink);
  width: 100%; padding: .75rem .9rem; border: 1px solid var(--line); border-radius: 10px; background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--teal); box-shadow: 0 0 0 4px rgba(14, 165, 164, .15);
}
.contact-form .invalid { border-color: #ef4444; }
.form-status { margin: 0; font-size: .92rem; font-weight: 500; min-height: 1.4em; }
.form-status.success { color: #059669; }
.form-status.error { color: #dc2626; }

/* Footer */
.site-footer { background: var(--navy); color: #94a3b8; padding: 4rem 0 2rem; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; }
.footer-grid p { margin-top: 1rem; max-width: 22em; }
.footer-grid h4 { color: #fff; font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1rem; }
.footer-grid a:not(.brand) { display: block; color: #94a3b8; margin-bottom: .5rem; }
.footer-grid a:not(.brand):hover { color: #fff; text-decoration: none; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, .1);
}
.footer-bottom a { color: #94a3b8; }

/* Legal pages */
.legal { padding: 4rem 0 6rem; }
.legal .container { max-width: 760px; }
.legal h2 { font-size: 1.4rem; margin-top: 2.2rem; }
.legal .updated { color: var(--muted); font-size: .92rem; }

/* Product pages */
.product-title { display: flex; align-items: center; gap: .9rem; margin-bottom: 1rem; }
.product-title h2 { margin: 0; }
.product-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 4rem; align-items: center; }
.product-shot { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-lg); background: #fff; }
/* the width/height attributes reserve space; keep the screenshot's own aspect ratio */
.product-shot img, .dash-card .shot { width: 100%; height: auto; }
.product-shot a { display: block; cursor: zoom-in; }
.stat-word { font-size: 1.9rem; }
.steps-5 { grid-template-columns: repeat(5, 1fr); }
.feature-row { display: grid; grid-template-columns: 1fr 1.7fr; gap: 3.5rem; align-items: center; margin-bottom: 5rem; }
.feature-row:last-child { margin-bottom: 0; }
.feature-row.flip { grid-template-columns: 1.7fr 1fr; }
.feature-row.flip > :first-child { order: 2; }
.fine-print { margin-top: 2rem; font-size: .88rem; color: var(--muted); }

@media (max-width: 1024px) {
  .product-grid, .feature-row, .feature-row.flip { grid-template-columns: 1fr; gap: 2.5rem; }
  .feature-row.flip > :first-child { order: 0; }
  .steps-5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) { .steps-5 { grid-template-columns: 1fr; } }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* Responsive ---------------------------------------------------------------- */
@media (max-width: 1024px) {
  .card-grid, .quote-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero-grid, .compliance-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { max-width: 560px; margin-inline: auto; width: 100%; }
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; padding: 1rem 1.25rem 1.5rem;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a:not(.btn) { padding: .8rem 0; border-bottom: 1px solid var(--line); }
  .nav-menu .btn { margin-top: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .section { padding: 4.5rem 0; }
  .hero { padding: 3rem 0 4rem; }
  .card-grid, .quote-grid, .steps, .values, .form-row { grid-template-columns: 1fr; }
  .float-card { display: none; }
  .tab-panel, .contact-form { padding: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
}