/* ============================================================
   Arch Clinical Analytics — Design Tokens
   Palette: Surgical Navy / Precision Teal / Coral Signal / Cool White
   Type:    Space Grotesk (display) · Inter (body) · IBM Plex Mono (data)
   ============================================================ */

:root{
  /* Color */
  --navy-950: #060f22;
  --navy-900: #0a1f44;
  --navy-800: #122a56;
  --navy-700: #1c3a6e;
  --teal-600: #0b6f73;
  --teal-500: #0f8b8d;
  --teal-400: #2bb3ab;
  --teal-100: #e2f4f1;
  --coral-500: #2563eb;
  --coral-600: #1d4ed8;
  --white: #ffffff;
  --cool-50: #f5f7fa;
  --cool-100: #eef1f6;
  --cool-200: #e2e7ee;
  --slate-600: #4c5a6e;
  --slate-500: #64748b;
  --slate-300: #b7c1cf;
  --line: #dde3ec;

  /* Type */
  --font-display: "Inter", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Scale */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.95rem + 0.2vw, 1.05rem);
  --step-1:  clamp(1.25rem, 1.15rem + 0.4vw, 1.4rem);
  --step-2:  clamp(1.6rem, 1.4rem + 0.8vw, 1.95rem);
  --step-3:  clamp(2.1rem, 1.75rem + 1.4vw, 2.75rem);
  --step-4:  clamp(2.7rem, 2.1rem + 2.4vw, 3.9rem);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 2px rgba(10,31,68,0.06), 0 1px 1px rgba(10,31,68,0.04);
  --shadow-md: 0 8px 24px rgba(10,31,68,0.08);
  --shadow-lg: 0 24px 60px rgba(10,31,68,0.16);
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ============================================================ Reset */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--navy-900);
  background: var(--white);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4,p,figure{ margin:0; }
button{ font: inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible{
  outline: 2px solid var(--coral-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link{
  position:absolute; left:-9999px; top:0; background:var(--navy-900); color:var(--white);
  padding:.75rem 1.25rem; z-index:200; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

/* ============================================================ Layout helpers */
.wrap{
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.section{ padding-block: clamp(3.5rem, 7vw, 6.5rem); }
.section-head{
  max-width: 640px;
  margin-bottom: clamp(2.25rem, 5vw, 3.5rem);
}
.section-head.center{ margin-inline:auto; text-align:center; }

.eyebrow{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal-600);
  background: var(--teal-100);
  padding: .35rem .7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px; border-radius:50%;
  background: var(--teal-500);
}

h2.headline{ font-family: var(--font-display); font-size: var(--step-3); font-weight:600; letter-spacing:-.01em; color: var(--navy-900); }
h3.headline{ font-family: var(--font-display); font-size: var(--step-1); font-weight:600; color: var(--navy-900); }
.lede{ color: var(--slate-600); font-size: var(--step-0); margin-top: .9rem; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  padding: .85rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight:600; font-size:.95rem;
  border:1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary{ background: var(--coral-500); color:var(--white); box-shadow: var(--shadow-sm); }
.btn-primary:hover{ background: var(--coral-600); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost{ background: transparent; color: var(--navy-900); border-color: var(--line); }
.btn-ghost:hover{ border-color: var(--navy-900); }
.btn-light{ background: var(--white); color: var(--navy-900); }
.btn-light:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline-light{ background:transparent; color:var(--white); border-color: rgba(255,255,255,.35); }
.btn-outline-light:hover{ border-color:var(--white); background: rgba(255,255,255,.08); }

/* ============================================================ Header */
.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding-block: .9rem;
}
.brand{ display:flex; align-items:center; gap:.6rem; font-family:var(--font-display); font-weight:700; font-size:1.15rem; color:var(--navy-900); }
.brand .mark{ width:34px; height:34px; object-fit: contain; }
.brand small{ display:block; font-family: var(--font-mono); font-size:.62rem; letter-spacing:.1em; color:var(--slate-500); font-weight:500; }

.nav-links{ display:flex; align-items:center; gap:2rem; }
.nav-links a{
  font-size:.92rem; font-weight:500; color: var(--slate-600);
  position:relative; padding-block:.25rem;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px;
  background: var(--coral-500); transform: scaleX(0); transform-origin:left;
  transition: transform .25s var(--ease);
}
.nav-links a:hover{ color: var(--navy-900); }
.nav-links a:hover::after{ transform: scaleX(1); }
.nav-cta{ display:flex; align-items:center; gap:.85rem; }
.nav-toggle{
  display:none; background:none; border:none; padding:.5rem;
  flex-direction:column; gap:5px;
}
.nav-toggle span{ width:22px; height:2px; background: var(--navy-900); border-radius:2px; }

@media (max-width: 900px){
  .nav-links{
    position:fixed; inset: 64px 0 0 0; background: var(--white);
    flex-direction:column; align-items:flex-start; padding: 2rem 1.5rem;
    gap: 1.5rem; transform: translateX(100%); transition: transform .3s var(--ease);
    overflow-y:auto;
  }
  .nav-links.open{ transform: translateX(0); }
  .nav-links a{ font-size:1.1rem; }
  .nav-toggle{ display:flex; }
  .nav-cta .btn-ghost{ display:none; }
}

/* ============================================================ Hero */
.hero{
  position:relative; overflow:hidden;
  background: linear-gradient(135deg, #f0f7ff 0%, #e0f2fe 50%, #eff6ff 100%);
  color: var(--navy-900);
  padding-block: clamp(4rem, 10vw, 7rem) clamp(3rem, 8vw, 5rem);
}
.hero-glow-1{
  position: absolute;
  top: -10%;
  left: 5%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}
.hero-glow-2{
  position: absolute;
  bottom: -15%;
  right: 5%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(15, 139, 141, 0.18) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 1;
}
.hero-grid{
  position: relative;
  z-index: 2;
  display:grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem);
  align-items:center;
}
.hero-copy .eyebrow{ background: rgba(15,139,141,0.08); color: var(--teal-600); }
.hero-copy .eyebrow::before{ background: var(--teal-500); }
.hero h1{
  font-family: var(--font-display); font-weight:600; letter-spacing:-.02em;
  font-size: var(--step-4); color: var(--navy-900); line-height:1.05;
}
.hero h1 em{ font-style: normal; color: var(--teal-600); }
.hero .lede{ color: var(--slate-600); max-width: 46ch; font-size: 1.08rem; }
.hero-actions{ display:flex; gap:1rem; margin-top:2.1rem; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap:2rem; margin-top:2.75rem; padding-top:1.75rem;
  border-top:1px solid rgba(255,255,255,.12); flex-wrap:wrap;
}
.hero-meta div strong{ display:block; font-family:var(--font-display); font-size:1.5rem; color:var(--white); }
.hero-meta div span{ font-size:.8rem; color: var(--slate-300); }

@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; text-align: center; gap: 3rem; }
  .hero-copy { display: flex; flex-direction: column; align-items: center; }
  .hero-actions { justify-content: center; }
  .dash-card { transform: none; }
  .hero-visual { display: flex; flex-direction: column; gap: 1rem; align-items: stretch; max-width: 480px; margin-inline: auto; width: 100%; }
  .float-chip { position: static; margin-block: 0.5rem; box-shadow: var(--shadow-sm); }
}

/* Hero visual: mock trial dashboard card */
.hero-visual{ position:relative; }
.dash-card{
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow:hidden; color: var(--navy-900);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}
.dash-card__bar{
  display:flex; align-items:center; gap:.4rem; padding:.85rem 1.1rem;
  border-bottom:1px solid var(--line); background: var(--cool-50);
}
.dash-card__bar span{ width:9px; height:9px; border-radius:50%; background: var(--line); }
.dash-card__bar span:nth-child(1){ background:#ff6b4a44; }
.dash-card__bar strong{ margin-left:.5rem; font-family:var(--font-mono); font-size:.72rem; color:var(--slate-500); font-weight:500; }
.dash-card__body{ padding: 1.4rem; }
.dash-row{ display:flex; justify-content:space-between; align-items:center; padding-block:.6rem; border-bottom:1px dashed var(--line); font-size:.86rem; }
.dash-row:last-child{ border-bottom:none; }
.dash-row .id{ font-family: var(--font-mono); color: var(--slate-500); font-size:.78rem; }
.status-pill{ font-size:.7rem; font-weight:600; padding:.25rem .6rem; border-radius:999px; }
.status-pill.active{ background: var(--teal-100); color: var(--teal-600); }
.status-pill.review{ background:#fff1e8; color: var(--coral-600); }
.status-pill.locked{ background: var(--cool-100); color: var(--slate-500); }
.dash-trace{ padding: 0 1.4rem 1.4rem; }
.dash-trace svg{ width:100%; height:auto; }

.float-chip{
  position:absolute; background: var(--white); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md); padding: .8rem 1rem; display:flex; align-items:center; gap:.6rem;
  color: var(--navy-900); font-size:.82rem; font-weight:600;
}
.float-chip svg{ width:20px; height:20px; flex-shrink:0; }
.float-chip.chip-1{ top:-6%; left:-8%; }
.float-chip.chip-2{ bottom:6%; right:-10%; }
.float-chip small{ display:block; font-weight:500; color:var(--slate-500); font-size:.7rem; }

/* ============================================================ Logo strip */
.trust-strip{ padding-block: 2.4rem; border-bottom:1px solid var(--line); }
.trust-strip p{ font-family: var(--font-mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color: var(--slate-500); margin-bottom:1.3rem; text-align:center; }
.trust-logos{ display:flex; flex-wrap:wrap; justify-content:center; gap: clamp(1.75rem, 5vw, 3.5rem); align-items:center; }
.trust-logos span{ font-family: var(--font-display); font-weight:600; color: var(--slate-300); font-size:1.1rem; letter-spacing:.02em; }

/* ============================================================ Feature grid */
.feature-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.feature-card{
  background: var(--cool-50); border:1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.75rem; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.feature-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--teal-400); }
.feature-card .icon{
  width:46px; height:46px; border-radius: var(--radius-sm); background: var(--navy-900);
  display:flex; align-items:center; justify-content:center; margin-bottom:1.1rem;
}
.feature-card .icon svg{ width:24px; height:24px; stroke:var(--teal-400); }
.feature-card h3{ font-family: var(--font-display); font-size: 1.05rem; font-weight:600; margin-bottom:.5rem; }
.feature-card p{ color: var(--slate-600); font-size:.92rem; }

@media (max-width: 1080px){ .feature-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px){ .feature-grid{ grid-template-columns: 1fr; } }

/* ============================================================ Workflow / phases */
.workflow{ background: var(--navy-900); color: var(--white); }
.workflow .section-head .lede{ color: var(--slate-300); }
.phase-rail{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.12);
  border-radius: var(--radius-lg); overflow:hidden; margin-top: 1rem;
}
.phase{
  background: var(--navy-800); padding: 2rem 1.6rem; position:relative;
}
.phase .phase-tag{ font-family: var(--font-mono); font-size:.72rem; color: var(--teal-400); letter-spacing:.08em; }
.phase h3{ font-family: var(--font-display); font-size:1.15rem; margin:.6rem 0 .6rem; color:var(--white); }
.phase p{ font-size:.87rem; color: var(--slate-300); }
.phase-connector{ position:absolute; top:2rem; right:-1px; width:1px; height:20px; background:var(--teal-400); display:none; }

@media (max-width: 900px){ .phase-rail{ grid-template-columns: 1fr; } }

/* ============================================================ Dashboard preview / analytics split */
.split{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items:center; }
.split.reverse .split-media{ order:2; }
@media (max-width: 900px){ .split{ grid-template-columns:1fr; } .split.reverse .split-media{ order:0; } }

.check-list{ margin-top:1.5rem; display:grid; gap:.9rem; }
.check-list li{ display:flex; gap:.7rem; align-items:flex-start; font-size:.95rem; color: var(--navy-800); }
.check-list svg{ width:20px; height:20px; flex-shrink:0; margin-top:2px; stroke: var(--teal-500); }

.panel{
  background: var(--white); border:1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); padding: 1.5rem; position:relative;
}
.panel-title{ display:flex; justify-content:space-between; align-items:center; margin-bottom:1.2rem; }
.panel-title h4{ font-family:var(--font-display); font-size:1rem; }
.panel-title span{ font-family:var(--font-mono); font-size:.7rem; color: var(--slate-500); }
.stat-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1rem; margin-bottom:1.3rem; }
.stat-grid div{ background: var(--cool-50); border-radius: var(--radius-sm); padding:.9rem; }
.stat-grid strong{ display:block; font-family:var(--font-display); font-size:1.4rem; color:var(--navy-900); }
.stat-grid span{ font-size:.72rem; color: var(--slate-500); }
.bars{ display:flex; align-items:flex-end; gap:.5rem; height:120px; }
.bars i{ flex:1; background: linear-gradient(180deg, var(--teal-400), var(--teal-600)); border-radius:4px 4px 0 0; }

/* ============================================================ Security band */
.security{ background: var(--cool-50); }
.security-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:1.25rem; margin-top: 1.5rem;}
.security-card{ background: var(--white); border:1px solid var(--line); border-radius: var(--radius-lg); padding: 1.75rem; }
.security-card .icon{ width:42px; height:42px; margin-bottom: 1rem; }
.security-card .icon svg{ width:100%; height:100%; stroke: var(--teal-600); }
.security-card h3{ font-family: var(--font-display); font-size:1.02rem; margin-bottom:.4rem; }
.security-card p{ color: var(--slate-600); font-size:.9rem; }
@media (max-width: 900px){ .security-grid{ grid-template-columns:1fr; } }

/* ============================================================ Testimonial / About */
.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4rem); align-items:center; }
@media (max-width:900px){ .about-grid{ grid-template-columns:1fr; } }
.quote-card{
  background: var(--navy-900); color:var(--white); border-radius: var(--radius-lg);
  padding: 2.25rem; position:relative;
}
.quote-card p{ font-family: var(--font-display); font-size:1.3rem; line-height:1.5; font-weight:500; }
.quote-card footer{ margin-top:1.3rem; font-size:.85rem; color: var(--slate-300); }
.quote-card footer strong{ color:var(--white); display:block; }
.stat-row{ display:flex; gap: clamp(1.5rem,4vw,3rem); margin-top:2rem; flex-wrap:wrap; }
.stat-row div strong{ display:block; font-family:var(--font-display); font-size:2rem; color: var(--navy-900); }
.stat-row div span{ font-size:.8rem; color:var(--slate-500); }

/* ============================================================ Contact / CTA */
.cta-band{
  background: linear-gradient(120deg, var(--teal-600), var(--navy-900));
  color: var(--white); border-radius: var(--radius-lg); padding: clamp(2.5rem,6vw,4rem);
  display:flex; justify-content:space-between; align-items:center; gap:2rem; flex-wrap:wrap;
}
.cta-band h2{ font-family: var(--font-display); font-size: var(--step-2); max-width: 20ch; }
.cta-band p{ color: rgba(255,255,255,.8); margin-top:.6rem; max-width:40ch; }
.cta-actions{ display:flex; gap:1rem; flex-wrap:wrap; }

.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4rem); margin-top:2rem; }
@media (max-width:900px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom: 1.1rem; }
.field label{ display:block; font-size:.82rem; font-weight:600; margin-bottom:.4rem; color: var(--navy-800); }
.field input, .field select, .field textarea{
  width:100%; padding:.8rem .95rem; border:1px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size:.95rem; background: var(--cool-50);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color: var(--teal-500); box-shadow: 0 0 0 3px rgba(15,139,141,.15); background:var(--white);
}
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
@media (max-width:520px){ .field-row{ grid-template-columns:1fr; } }
.form-note{ font-size:.78rem; color: var(--slate-500); margin-top:.5rem; }
.contact-info{ display:grid; gap:1.25rem; align-content:start; }
.contact-info .item{ display:flex; gap:1rem; }
.contact-info .icon{ width:42px; height:42px; border-radius: var(--radius-sm); background: var(--teal-100); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.contact-info .icon svg{ width:20px; height:20px; stroke: var(--teal-600); }
.contact-info h4{ font-family: var(--font-display); font-size:.98rem; }
.contact-info p{ font-size:.88rem; color: var(--slate-600); }

/* ============================================================ Footer */
.site-footer{ background: var(--navy-950); color: var(--slate-300); padding-block: 3.5rem 2rem; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 2.5rem; }
@media (max-width: 780px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h5{ color: var(--white); font-family: var(--font-display); font-size:.9rem; margin-bottom:1rem; letter-spacing:.02em; }
.footer-grid ul{ display:grid; gap:.65rem; }
.footer-grid a{ font-size:.88rem; color: var(--slate-300); }
.footer-grid a:hover{ color: var(--teal-400); }
.footer-brand p{ color: var(--slate-300); font-size:.88rem; max-width: 32ch; margin-top:.9rem; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem;
  margin-top: 3rem; padding-top: 1.75rem; border-top:1px solid rgba(255,255,255,.08);
  font-size:.78rem; color: var(--slate-500);
}
.footer-bottom .legal{ display:flex; gap:1.5rem; flex-wrap:wrap; }

/* ============================================================ Reveal-on-scroll */
[data-reveal]{ opacity:0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-reveal].in-view{ opacity:1; transform:none; }

/* Scan line accent used inside hero SVG trace */
.trace-path{ stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 2.6s var(--ease) forwards .3s; }
@keyframes draw{ to{ stroke-dashoffset:0; } }

.badge-count{ font-variant-numeric: tabular-nums; }

/* ============================================================ Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  background: #25D366;
  color: #ffffff !important;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35), 0 2px 8px rgba(10, 31, 68, 0.15);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}
.whatsapp-float:hover {
  background: #20ba5a;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.45), 0 4px 12px rgba(10, 31, 68, 0.2);
  color: #ffffff !important;
}
.whatsapp-float svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
  flex-shrink: 0;
}
@media (max-width: 600px) {
  .whatsapp-float span {
    display: none;
  }
  .whatsapp-float {
    padding: 0.85rem;
    bottom: 18px;
    right: 18px;
    border-radius: 50%;
  }
}