/* Дизайн-система в стиле nocode.moscow: светлая тема, Inter, зелёный акцент. */
:root {
  --color-green: #00FF47;
  --color-black: #1A1A1A;
  --color-gray: #F5F5F7;
  --color-text: #2D2D2D;
  --color-white: #FFFFFF;
  --color-border: #E5E5E5;
  --color-blue: #005FCC;
  --gray-300: #D1D5DB;
  --gray-400: #6F7682;
  --gray-500: #596170;
  --gray-600: #4B5563;

  --up: #0F9D58;      /* читаемый зелёный для текста дельт */
  --up-bg: rgba(0, 255, 71, 0.16);
  --down: #E5484D;
  --down-bg: rgba(229, 72, 77, 0.12);
  --flat: #8A93A2;
  --flat-bg: #F0F1F3;

  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --t-fast: 0.2s ease;
  --t-normal: 0.3s ease;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--color-white);
  color: var(--color-black);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'kern' 1, 'liga' 1;
  min-height: 100vh;
}
a { color: var(--color-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--color-gray); padding: 1px 6px; border-radius: 6px; font-size: 13px; color: var(--color-black); }

/* Шапка */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.brand { font-weight: 800; font-size: 18px; color: var(--color-black); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.topbar nav { display: flex; align-items: center; gap: 18px; }
.topbar nav a { color: var(--gray-500); font-weight: 600; font-size: 14px; }
.topbar nav a:hover { color: var(--color-black); text-decoration: none; }
.who { color: var(--gray-400); font-size: 13px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 30px 24px 70px; }
.foot { text-align: center; color: var(--gray-400); font-size: 12px; padding: 24px; }

h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 4px; }
h2 { font-size: 13px; font-weight: 700; margin: 34px 0 14px; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.06em; }
.sub { color: var(--gray-500); }
.muted { color: var(--gray-400); }
.small { font-size: 12px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 10px; }
.period { color: var(--gray-500); font-size: 14px; margin: 8px 0; }
.period b { color: var(--color-black); }
.inline { display: inline; }

/* Кнопки — пилюли, uppercase (стиль nocode) */
button, .btn-primary, .btn-sm {
  cursor: pointer; font-family: inherit;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  border-radius: var(--radius-full); border: 1px solid var(--color-border);
  background: var(--color-white); color: var(--color-black);
  padding: 0.7rem 1.4rem; font-size: 13px;
  transition: background-color var(--t-normal), color var(--t-normal), transform var(--t-normal), box-shadow var(--t-normal);
}
button:hover, .btn-sm:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary {
  background: var(--color-green); border-color: var(--color-green); color: var(--color-black);
}
.btn-primary:hover { background: var(--color-black); border-color: var(--color-black); color: var(--color-white); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-sm { padding: 0.5rem 1rem; font-size: 12px; }

/* Логин */
.login-card {
  max-width: 380px; margin: 9vh auto; background: var(--color-white);
  padding: 34px; border-radius: var(--radius-lg); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}
.login-card h1 { margin-bottom: 18px; }
.login-card label { display: block; margin: 14px 0; font-size: 13px; font-weight: 600; color: var(--gray-500); }
.login-card input { width: 100%; margin-top: 6px; padding: 11px 13px; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-black); font-size: 15px; font-family: inherit; }
.login-card input:focus { outline: none; border-color: var(--color-blue); box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.12); }
.login-card button { width: 100%; margin-top: 12px; background: var(--color-green); border-color: var(--color-green); }
.login-card button:hover { background: var(--color-black); border-color: var(--color-black); color: var(--color-white); }

/* Уведомления */
.alert { background: var(--color-gray); border: 1px solid var(--color-border); border-left: 3px solid var(--color-blue); padding: 13px 15px; border-radius: var(--radius-sm); margin: 14px 0; color: var(--color-text); }
.alert.warn { border-left-color: #F5A623; }
.alert.ok { border-left-color: var(--up); }

/* Карточки сайтов */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-top: 18px; }
.site-card { display: block; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 22px; color: var(--color-black); box-shadow: var(--shadow-sm); transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast); }
.site-card:hover { border-color: var(--color-green); text-decoration: none; transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.site-name { font-weight: 800; font-size: 17px; letter-spacing: -0.01em; }
.site-host { color: var(--gray-400); font-size: 13px; margin: 4px 0; }
.site-region { color: var(--gray-500); font-size: 12px; margin-top: 10px; font-weight: 600; }

/* Метрики */
.metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px; }
.metric { background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px 18px; box-shadow: var(--shadow-sm); }
.metric-title { color: var(--gray-400); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.metric-value { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; margin: 6px 0; }
.metric-delta { display: flex; align-items: center; gap: 8px; }
.prev { color: var(--gray-400); font-size: 11px; }

.badge { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: var(--radius-full); font-size: 12px; font-weight: 700; }
.badge.up { background: var(--up-bg); color: var(--up); }
.badge.down { background: var(--down-bg); color: var(--down); }
.badge.flat { background: var(--flat-bg); color: var(--flat); }

/* Таблицы */
table.grid { width: 100%; border-collapse: collapse; margin-top: 10px; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.grid th, .grid td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--color-border); font-size: 14px; }
.grid th { color: var(--gray-400); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; background: var(--color-gray); }
.grid tr:last-child td { border-bottom: none; }
.grid tbody tr:hover { background: var(--color-gray); }
.grid .pos { font-weight: 800; text-align: center; width: 90px; }
.grid .q { max-width: 320px; font-weight: 500; }
.grid .url a { font-size: 12px; color: var(--gray-400); }
.row-up .pos { color: var(--up); }
.row-down .pos { color: var(--down); }

/* Формы админки */
.row-form { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.row-form input, .row-form select { padding: 9px 12px; background: var(--color-white); border: 1px solid var(--color-border); border-radius: var(--radius-sm); color: var(--color-black); font-size: 14px; font-family: inherit; }
.row-form input:focus, .row-form select:focus { outline: none; border-color: var(--color-blue); box-shadow: 0 0 0 3px rgba(0, 95, 204, 0.12); }
.chip-form { display: inline; }
.chip { font-size: 11px; padding: 4px 10px; margin: 2px; border-radius: var(--radius-full); text-transform: none; letter-spacing: 0; font-weight: 600; }
.chip.on { background: var(--up-bg); color: var(--up); border-color: rgba(15, 157, 88, 0.35); }