/* SEN Company Hub — Sky Eye Network design system
   Tokens per SEN_OS/30_Knowledge/Brand/SEN_Visual_Identity.md */

:root {
  --sen-blue: #1992d1;        /* Sky Eye Blue (primary, style guide) */
  --sen-cyan: #40d9f1;        /* site accent */
  --sen-navy: #003388;        /* dark nav blue */
  --sen-ink: #0b1c2c;         /* deep neutral for headers/sidebar */
  --sen-blue-tint: #e6f4fb;
  --bg: #f5f8fa;
  --bg-card: #ffffff;
  --text: #16232e;
  --text-secondary: #5b6b78;
  --text-tertiary: #8a97a3;
  --border: rgba(11, 28, 44, 0.08);
  --border-strong: rgba(11, 28, 44, 0.14);
  --green: #23a55a;
  --amber: #e8930c;
  --red: #d64545;
  --radius: 14px;
  --radius-sm: 9px;
  --font: "Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 1px 3px rgba(11, 28, 44, 0.06), 0 4px 16px rgba(11, 28, 44, 0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  font-weight: 300;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.01em; }
a { color: var(--sen-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- topbar ---------- */
.topbar {
  background: var(--sen-ink);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar img.logo { height: 30px; display: block; }
.topbar .title { font-size: 14px; font-weight: 600; color: var(--sen-cyan); letter-spacing: 0.08em; text-transform: uppercase; }
.topbar .spacer { flex: 1; }
.topbar .who { font-size: 13px; color: rgba(255,255,255,0.75); }
.topbar button.logout {
  background: transparent; border: 1px solid rgba(255,255,255,0.25); color: #fff;
  border-radius: var(--radius-sm); padding: 5px 12px; font-size: 12.5px; cursor: pointer; font-family: var(--font);
}
.topbar button.logout:hover { background: rgba(255,255,255,0.1); }

/* ---------- nav ---------- */
.nav {
  display: flex; gap: 4px; padding: 10px 24px 0; background: var(--bg-card);
  border-bottom: 1px solid var(--border); overflow-x: auto;
}
.nav button {
  background: none; border: none; font-family: var(--font); font-size: 14px; font-weight: 600;
  color: var(--text-secondary); padding: 10px 14px 12px; cursor: pointer;
  border-bottom: 2.5px solid transparent; white-space: nowrap;
}
.nav button.active { color: var(--sen-blue); border-bottom-color: var(--sen-blue); }
.nav button:hover { color: var(--sen-navy); }

/* ---------- layout ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px; }
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
.grid.tiles { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow);
}
.card h2 {
  font-size: 15px; color: var(--sen-navy); margin-bottom: 14px;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.card h2 .asof { font-size: 11px; font-weight: 400; color: var(--text-tertiary); }

/* ---------- metric tiles ---------- */
.tile {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow);
}
.tile .label { font-size: 12px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.tile .value { font-size: 27px; font-weight: 700; color: var(--sen-ink); margin-top: 4px; }
.tile .sub { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.tile.accent { border-top: 3px solid var(--sen-blue); }

/* ---------- tables & lists ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-tertiary); font-weight: 600; padding: 6px 10px; border-bottom: 1px solid var(--border-strong); }
td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.pill { display: inline-block; font-size: 11.5px; font-weight: 600; border-radius: 20px; padding: 2px 10px; }
.pill.blue { background: var(--sen-blue-tint); color: var(--sen-navy); }
.pill.green { background: #e5f6ec; color: #157a41; }
.pill.amber { background: #fdf1dd; color: #9c6205; }
.pill.red { background: #fbe9e9; color: #a53030; }
.pill.gray { background: #eef1f4; color: var(--text-secondary); }

.empty { color: var(--text-tertiary); font-size: 13.5px; padding: 12px 0; }

/* ---------- forms ---------- */
input, select {
  font-family: var(--font); font-size: 14px; padding: 9px 12px;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm); background: #fff; color: var(--text);
  width: 100%;
}
input:focus { outline: 2px solid var(--sen-blue); outline-offset: -1px; border-color: var(--sen-blue); }
label { font-size: 12.5px; font-weight: 600; color: var(--text-secondary); display: block; margin-bottom: 5px; }
button.primary {
  background: var(--sen-blue); color: #fff; border: none; font-family: var(--font);
  font-size: 14px; font-weight: 700; padding: 10px 18px; border-radius: var(--radius-sm); cursor: pointer;
}
button.primary:hover { background: var(--sen-navy); }
button.primary:disabled { opacity: 0.5; cursor: default; }

/* ---------- login ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(160deg, var(--sen-ink) 0%, var(--sen-navy) 100%);
  padding: 24px;
}
.login-card {
  background: #fff; border-radius: var(--radius); padding: 36px; width: 100%; max-width: 400px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-card img { height: 44px; margin: 0 auto 20px; display: block; }
.login-card h1 { font-size: 19px; text-align: center; color: var(--sen-ink); margin-bottom: 4px; }
.login-card p.sub { text-align: center; color: var(--text-secondary); font-size: 13px; margin-bottom: 22px; }
.login-card .field { margin-bottom: 14px; }
.login-card .error { color: var(--red); font-size: 13px; margin-top: 10px; text-align: center; min-height: 18px; }

.loading { color: var(--text-tertiary); font-size: 13px; padding: 20px; text-align: center; }