/* =========================================================
   site.css — სამეანო ანესთეზიის სახელმძღვანელო
   სრულად გადაწერილი, სემანტიკურ class-ებზე დაფუძნებული სტილები.
   Mobile-first: საბაზისო წესები მობილურისთვისაა, დესკტოპისთვის
   გაფართოებულია min-width მედია-მოთხოვნებით.
   ========================================================= */

:root{
  --teal-50:  #f0fdfa;
  --teal-100: #ccfbf1;
  --teal-200: #99f6e4;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --teal-800: #115e59;
  --teal-900: #134e4a;
  --ink:      #1f2937;
  --ink-soft: #4b5563;
  --paper:    #ffffff;
  --bg:       #eef4f4;
  --line:     #e2e8ee;
  --radius:   16px;
  --shadow:   0 4px 24px rgba(15, 60, 60, 0.08);
  --shadow-lg:0 10px 40px rgba(15, 60, 60, 0.14);
  --font-ui:  'Noto Sans Georgian', 'BPG Nino Mtavruli', 'Sylfaen', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --header-h: 64px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 10% -10%, var(--teal-100), transparent),
              radial-gradient(1000px 500px at 110% 10%, var(--teal-50), transparent),
              var(--bg);
  font-family: var(--font-ui);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  padding-bottom: 40px;
}

a{ color: var(--teal-700); text-decoration: none; font-weight: 700; }
a:hover{ color: var(--teal-500); }

img{ max-width: 100%; height: auto; }

/* accessibility: skip link */
.skip-link{
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--teal-700);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 10px 0;
  z-index: 999;
}
.skip-link:focus{ left: 0; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header{
  background: linear-gradient(120deg, var(--teal-700), var(--teal-600) 55%, var(--teal-500));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 16px;
  border-radius: 0 0 22px 22px;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 200;
  flex-wrap: wrap;
}

.menu-toggle{
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255,255,255,.15);
  color: #fff;
  border-radius: 10px;
  cursor: pointer;
  order: 0;
}
.menu-toggle svg{ width: 22px; height: 22px; }

.site-logo{
  flex: 0 0 auto;
  display: inline-flex;
  order: 1;
}
.site-logo img{
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  padding: 4px;
  box-shadow: 0 3px 10px rgba(0,0,0,.25);
}

.site-title{
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin: 0;
  order: 2;
  flex: 1 1 auto;
  text-align: center;
}

.clock-widget{
  order: 3;
  color: #fff;
  font-size: 12px;
  text-align: center;
  background: rgba(255,255,255,.12);
  border-radius: 10px;
  padding: 6px 10px;
  display: flex;
  gap: 6px;
  align-items: baseline;
}
.clock-widget .cw-date{ font-weight: 700; }
.clock-widget .cw-time{ font-variant-numeric: tabular-nums; opacity: .9; }

/* =========================================================
   ALPHABETICAL INDEX BAR
   ========================================================= */
.alpha-index{
  background: var(--paper);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 12px 16px;
  margin: 14px auto 0;
  max-width: 1180px;
  text-align: center;
  overflow-x: auto;
  white-space: nowrap;
}
.alpha-index .label{
  color: var(--teal-700);
  font-weight: 700;
  margin-right: 6px;
}
.alpha-index a{
  display: inline-block;
  padding: 4px 9px;
  margin: 2px;
  border-radius: 8px;
  transition: all .15s ease;
}
.alpha-index a:hover{
  background: var(--teal-600);
  color: #fff;
}

/* =========================================================
   LAYOUT: SIDEBAR + MAIN
   ========================================================= */
.layout{
  max-width: 1180px;
  margin: 16px auto 0;
  padding: 0 8px 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 16px;
}

.sidebar{
  width: 100%;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  order: 2;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .3s ease, padding .3s ease, opacity .2s ease;
}
.sidebar.nav-open{
  max-height: 3000px;
  opacity: 1;
  margin-top: 4px;
}

.search-box{
  width: 100%;
  margin-bottom: 12px;
}
.search-box input{
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-ui);
  font-size: 14px;
  background: var(--teal-50);
  color: var(--ink);
}
.search-box input:focus{
  outline: none;
  border-color: var(--teal-500);
}
.search-box .search-count{
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 6px;
}

.nav-list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.nav-list a{
  display: block;
  border-radius: 10px;
  padding: 11px 12px;
  background: #f4f8f8;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.35;
  transition: all .18s ease;
}
.nav-list a:hover{
  background: var(--teal-600);
  color: #fff;
}
.nav-list a.current{
  background: var(--teal-50);
  border: 1.5px solid var(--teal-500);
  color: var(--teal-800);
}

.mainbar{
  order: 1;
  flex: 1 1 100%;
  min-width: 0;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 18px;
  line-height: 1.75;
  overflow-wrap: break-word;
}
.mainbar h1{ color: var(--teal-800); font-size: 1.5rem; margin-top: 0; }
.mainbar h2{ color: var(--teal-700); }
.mainbar h3{ color: var(--teal-600); }
.mainbar table{ max-width: 100%; }
.mainbar .table-scroll{ overflow-x: auto; margin: 10px 0; }
.mainbar img{ max-width: 100%; height: auto; }

/* home button */
.home-link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 16px 8px 10px;
  background: var(--teal-50);
  border-radius: 999px;
  transition: all .2s ease;
}
.home-link:hover{ background: var(--teal-600); color: #fff; }
.home-link img{ width: 30px; height: 22px; }

/* scrollbars */
.mainbar::-webkit-scrollbar-track{ background-color: #F5F5F5; }
.mainbar::-webkit-scrollbar{ width: 8px; }
.mainbar::-webkit-scrollbar-thumb{ background-color: var(--teal-500); border-radius: 8px; }

/* footer */
.site-footer{
  max-width: 1180px;
  margin: 10px auto 0;
  padding: 14px 18px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 12px;
}

/* back-to-top button */
.back-to-top{
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--teal-600);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all .25s ease;
  z-index: 250;
  cursor: pointer;
  border: none;
}
.back-to-top.show{ opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top svg{ width: 20px; height: 20px; }

/* =========================================================
   TABLET / DESKTOP
   ========================================================= */
@media (min-width: 720px){
  .site-header{ padding: 14px 22px; }
  .site-logo img{ width: 56px; height: 56px; }
  .site-title{ font-size: 20px; text-align: left; order: 1; }
  .menu-toggle{ display: none; }

  .sidebar{
    order: 1;
    width: 250px;
    flex: 0 0 250px;
    max-height: none;
    overflow: visible;
    opacity: 1;
    position: sticky;
    top: 84px;
  }
  .mainbar{
    order: 2;
    flex: 1 1 560px;
    padding: 28px 32px;
  }
  .layout{ padding: 0 4px 30px; }
}

@media (min-width: 1000px){
  .mainbar table[width="100%"] img{ max-width: 240px; }
}