/*
 * IthalaMed Knowledge Center — uses the official IthalaMed brand palette,
 * matching the web portals.
 *   Primary  (Deep Sky Blue, from the logo heart & "MED"): #00bfff
 *   Secondary (Navy, from the logo circle & "ITHALA"):      #1e3a5f
 *   Accent   (Light Cyan, from the logo circuit dots):      #38bdf8
 * The --teal-* variable names are retained for stability but now hold
 * the brand blue/navy scale.
 */
:root {
  --teal-900: #1e3a5f; /* brand navy — headings, header gradient start */
  --teal-800: #004d66; /* deep blue — card / result titles */
  --teal-700: #007399; /* brand blue — links, active text, header gradient end */
  --teal-600: #0099cc; /* brand blue — borders, step circles, accents */
  --teal-100: #ccf3ff; /* light sky — soft borders */
  --teal-50: #e6f9ff;  /* lightest sky — tints, hovers, badges */
  --ink: #1f2933;
  --ink-soft: #4a7199; /* brand mid-navy — muted text */
  --line: #dde7f1;
  --bg: #f8fafc;
  --card: #ffffff;
  --accent: #b45309;
  --danger: #b91c1c;
  --ok: #15803d;
  --shadow: 0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.06);
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--teal-700); color: #fff;
  padding: 8px 14px; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 14px;
  padding: 10px 18px;
  background: linear-gradient(90deg, var(--teal-900), var(--teal-700));
  color: #fff;
  box-shadow: var(--shadow);
}
.menu-toggle {
  display: none; background: rgba(255,255,255,.15); border: 0; color: #fff;
  font-size: 18px; width: 40px; height: 40px; border-radius: 8px; cursor: pointer;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 150px; }
.brand .logo {
  display: grid; place-items: center; width: 40px; height: 40px;
  background: #fff; border-radius: 9px; padding: 3px; box-shadow: var(--shadow);
}
.brand .logo img { width: 100%; height: 100%; object-fit: contain; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 16px; letter-spacing: .2px; }
.brand-text span { font-size: 11px; opacity: .85; text-transform: uppercase; letter-spacing: 1.2px; }

.search-wrap { position: relative; flex: 1; max-width: 620px; }
.search-wrap input {
  width: 100%; padding: 11px 40px 11px 16px; border-radius: 999px; border: 0;
  font-size: 15px; background: rgba(255,255,255,.96); color: var(--ink); box-shadow: var(--shadow);
}
.search-wrap input:focus { outline: 3px solid var(--teal-100); }
.search-hint {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: var(--line); color: var(--ink-soft); border-radius: 6px; padding: 1px 8px; font-size: 12px;
}
.topbar-actions { display: flex; gap: 8px; }
.topbar-actions select {
  border: 0; border-radius: 8px; padding: 9px 10px; font-size: 13px; background: rgba(255,255,255,.96);
  color: var(--ink); box-shadow: var(--shadow); cursor: pointer; max-width: 170px;
}

/* Layout */
.layout { display: flex; align-items: stretch; }
.sidebar {
  width: 300px; flex-shrink: 0; background: var(--card); border-right: 1px solid var(--line);
  height: calc(100vh - 60px); position: sticky; top: 60px; overflow-y: auto; padding: 14px 10px 60px;
}
.backdrop { display: none; }

.nav-group { margin-bottom: 6px; }
.nav-group > button {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px;
  color: var(--ink-soft); padding: 10px 12px; border-radius: 8px; display: flex; align-items: center; gap: 8px;
}
.nav-group > button:hover { background: var(--teal-50); color: var(--teal-700); }
.nav-group .chev { margin-left: auto; transition: transform .15s; font-size: 11px; }
.nav-group.collapsed .chev { transform: rotate(-90deg); }
.nav-group.collapsed .nav-items { display: none; }
.nav-group .grp-emoji { font-size: 15px; }
.nav-items { list-style: none; margin: 2px 0 8px; padding: 0; }
.nav-items a {
  display: block; padding: 7px 12px 7px 34px; color: var(--ink); text-decoration: none;
  font-size: 13.5px; border-radius: 7px; border-left: 2px solid transparent;
}
.nav-items a:hover { background: var(--teal-50); }
.nav-items a.active { background: var(--teal-50); color: var(--teal-700); font-weight: 600; border-left-color: var(--teal-600); }

/* Content */
.content { flex: 1; min-width: 0; padding: 28px clamp(18px, 5vw, 64px) 60px; max-width: 1000px; }
.article { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 4vw, 44px); box-shadow: var(--shadow); }

.breadcrumb { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .5px; }
.article h1 { font-size: clamp(24px, 4vw, 34px); margin: 0 0 6px; line-height: 1.2; color: var(--teal-900); }
.article h2 { font-size: 21px; margin: 34px 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--teal-50); color: var(--teal-900); }
.article h3 { font-size: 16.5px; margin: 22px 0 8px; color: var(--teal-700); }
.article p { margin: 10px 0; }
.article ul, .article ol { margin: 10px 0; padding-left: 22px; }
.article li { margin: 6px 0; }
.article a { color: var(--teal-700); }
.lead { font-size: 17px; color: var(--ink-soft); }

.badges { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 4px; }
.badge {
  font-size: 11.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px;
  background: var(--teal-50); color: var(--teal-700); border: 1px solid var(--teal-100);
}
.badge.platform { background: #eef2ff; color: #3730a3; border-color: #e0e7ff; }
.badge.audience { background: #fff7ed; color: var(--accent); border-color: #fed7aa; }

/* Flow steps */
ol.flow { counter-reset: step; list-style: none; padding-left: 0; }
ol.flow > li {
  position: relative; padding: 12px 14px 12px 52px; margin: 10px 0; background: var(--teal-50);
  border: 1px solid var(--teal-100); border-radius: 10px;
}
ol.flow > li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 12px; top: 12px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--teal-600); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px;
}

.callout {
  border-radius: 10px; padding: 12px 16px; margin: 16px 0; border-left: 4px solid;
  font-size: 14.5px;
}
.callout.result { background: #ecfdf5; border-color: var(--ok); }
.callout.result strong { color: var(--ok); }
.callout.tip { background: #eff6ff; border-color: #2563eb; }
.callout.tip strong { color: #1d4ed8; }
.callout.warn { background: #fef2f2; border-color: var(--danger); }
.callout.warn strong { color: var(--danger); }
.callout.note { background: #fafafa; border-color: #9ca3af; }

table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; }
th, td { text-align: left; padding: 9px 11px; border: 1px solid var(--line); vertical-align: top; }
th { background: var(--teal-50); color: var(--teal-900); font-weight: 600; }
tr:nth-child(even) td { background: #fafcfc; }

code { background: #f1f5f5; padding: 1px 6px; border-radius: 5px; font-size: 90%; }
.path { color: var(--ink-soft); font-family: ui-monospace, Menlo, monospace; font-size: 90%; }

.pipeline { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 14px 0; }
.pipeline span { background: #fff; border: 1px solid var(--teal-100); padding: 6px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; color: var(--teal-700); }
.pipeline .arrow { background: none; border: 0; color: var(--ink-soft); font-weight: 400; padding: 0 2px; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px,1fr)); gap: 12px; margin: 16px 0; }
.card-link {
  display: block; text-decoration: none; color: inherit; background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 14px 16px; transition: border-color .15s, transform .15s; box-shadow: var(--shadow);
}
.card-link:hover { border-color: var(--teal-600); transform: translateY(-2px); }
.card-link .ct { font-weight: 700; color: var(--teal-800); display: flex; gap: 8px; align-items: center; }
.card-link .cd { font-size: 13px; color: var(--ink-soft); margin-top: 4px; }

.related { margin-top: 30px; padding-top: 18px; border-top: 1px dashed var(--line); }
.related h3 { margin-top: 0; }
.related a { display: inline-block; margin: 3px 8px 3px 0; font-size: 13.5px; padding: 5px 12px; background: var(--teal-50); border-radius: 999px; text-decoration: none; }

.article-footer { color: var(--ink-soft); font-size: 12.5px; margin-top: 24px; text-align: center; }

/* Search results */
.search-results { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; box-shadow: var(--shadow); margin-bottom: 18px; }
.search-results h2 { margin: 0 0 12px; font-size: 18px; }
.result {
  display: block; text-decoration: none; color: inherit; padding: 12px 14px; border: 1px solid var(--line);
  border-radius: 9px; margin-bottom: 10px; transition: border-color .15s;
}
.result:hover { border-color: var(--teal-600); background: var(--teal-50); }
.result .rt { font-weight: 700; color: var(--teal-800); }
.result .rc { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .5px; }
.result .rs { font-size: 13.5px; color: var(--ink-soft); margin-top: 3px; }
.result mark { background: #fde68a; padding: 0 2px; border-radius: 3px; }
.no-results { color: var(--ink-soft); }

.hp-hero { background: linear-gradient(120deg, var(--teal-700), var(--teal-600)); color: #fff; border-radius: 12px; padding: 30px 32px; margin-bottom: 6px; }
.hp-hero h1 { color: #fff; margin: 0 0 8px; }
.hp-hero p { color: #e6f9ff; font-size: 16px; max-width: 720px; }

@media (max-width: 900px) {
  .topbar-actions { display: none; }
  .menu-toggle { display: block; }
  .sidebar {
    position: fixed; top: 60px; left: 0; bottom: 0; z-index: 35; transform: translateX(-100%);
    transition: transform .2s ease; box-shadow: 2px 0 12px rgba(0,0,0,.12);
  }
  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .backdrop { display: block; position: fixed; inset: 60px 0 0 0; background: rgba(0,0,0,.35); z-index: 34; }
  .search-hint { display: none; }
}
@media (max-width: 560px) {
  .brand-text { display: none; }
  .search-wrap input { font-size: 14px; }
}