:root{
  --bg: #f7f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #3b82f6;
  --primary-contrast: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.06);
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #0b1020;
    --card: #111827;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --primary: #60a5fa;
    --primary-contrast: #0b1020;
    --border: #1f2937;
    --shadow: none;
  }
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container{
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
}

.logo{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
}
.logo img{
  width: 200px; height: 40px; object-fit: contain; display: block;
}

.header-actions{
  display: flex; align-items: center; gap: 12px;
}
.user-icon{
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
}
.user-icon img{ display: block; }

.btn{
  display: inline-flex; align-items: center; justify-content: center;
  height: 36px; padding: 0 12px; border-radius: 8px;
  border: 1px solid var(--border); text-decoration: none; color: var(--text);
  background: var(--card); box-shadow: var(--shadow);
}
.btn:hover{ filter: brightness(0.98); }
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: var(--primary); color: var(--primary-contrast);
  border-color: transparent;
}
.btn-outline{
  background: transparent; color: var(--text); border-color: var(--border);
}
.btn-link{
  background: transparent; border-color: transparent; color: var(--primary);
  height: auto; padding: 0; box-shadow: none;
}


/* --- Стили для поиска --- */
.search-container {
    position: relative; /* Важно для позиционирования выпадающего списка */
    width: 600px;
}

.search-form {
    display: flex;
}

#search-input {
    flex-grow: 1;
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
}

.search-form button {
    padding: 8px 15px;
    border: transparent;
    background-color: var(--primary);
    color: var(--primary-contrast);
    cursor: pointer;
    border-radius: 8px;
    font-size: 14px;
    margin-left: 14px;
}

.search-form button:active {
    transform: translateY(1px);
}


/* Выпадающий список с результатами "живого" поиска */
.search-results-list {
    position: absolute;
    top: 100%; /* Располагаем под полем ввода */
    left: 0;
    right: 0;
    background-color: #fff;
    border: 1px solid #ddd;
    border-top: none;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    z-index: 1000;
    display: none; /* Скрыт по умолчанию */
}

.search-result-item {
    display: block;
    padding: 10px 15px;
    text-decoration: none;
    color: #333;
    border-bottom: 1px solid #eee;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background-color: #f0f0f0;
}

.search-result-item.loading {
    color: #888;
    font-style: italic;
}

/* Layout: sidebar + content */
.layout{
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 64px - 64px); /* высота экрана минус header и footer */
}

.sidebar{
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 16px;
  position: sticky;
  top: 64px;
  align-self: start;
  height: calc(100vh - 64px);
  overflow-y: auto;
}

.nav{
  list-style: none; margin: 0; padding: 0; display: grid; gap: 8px;
}
.nav a{
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
}
.nav a:hover{
  background: var(--bg);
  border-color: var(--border);
}
.nav a.active{
  background: rgba(59,130,246,.12);
  border-color: rgba(59,130,246,.35);
  color: #0b4aa6;
}

/* Content */
.content{
  padding: 24px;
}

.hero{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
  margin-top: 16px;
}

.notice{
  background: rgba(16,185,129,.12);
  border: 1px solid rgba(16,185,129,.35);
  color: #065f46;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.alert{
  border-radius: 8px; padding: 10px 12px; margin-bottom: 16px;
}
.alert-error{
  background: rgba(239,68,68,.12);
  border: 1px solid rgba(239,68,68,.35);
  color: #7f1d1d;
}

/* Forms */
.form{ display: grid; gap: 12px; max-width: 420px; }
.form-row{ display: grid; gap: 6px; }
.form-row label{ color: var(--muted); font-size: 14px; }
.form-row input{
  height: 40px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); padding: 0 10px;
}
.form-actions{ display: flex; gap: 10px; align-items: center; }

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  background: var(--card);
  height: 64px; display: grid; place-items: center;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 900px){
  .layout{
    grid-template-columns: 1fr;
  }
  .sidebar{
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
}