/* Kiểu chung của hai trang ngoài CRM (khachhang, hanhtrinhsechia). Mỗi trang chép file này lúc dựng. */
:root {
  --navy: #0b3a75;
  --blue: #1560c0;
  --sky: #eaf3fc;
  --ink: #12233b;
  --muted: #5d6f86;
  --line: #dde7f2;
  --card: #ffffff;
  --page: #f4f8fc;
  --gold: #b07a12;
  --gold-bg: #fff6e0;
  --ok: #17803d;
  --ok-bg: #e2f6e9;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(13, 52, 104, 0.08);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0; line-height: 1.2; color: var(--navy); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.hidden { display: none !important; }

/* Thanh trên cùng */
.topbar { background: #fff; border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; gap: 24px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy); font-weight: 800; letter-spacing: 0.02em; }
.brand:hover { text-decoration: none; }
.brand img { height: 40px; width: auto; }
.brand small { display: block; font-weight: 500; font-size: 12px; color: var(--muted); letter-spacing: 0; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 15px; }
.nav a { color: var(--ink); }
.spacer { flex: 1; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--line); background: #fff; color: var(--navy);
  padding: 11px 18px; border-radius: 10px; font: inherit; font-weight: 600; cursor: pointer;
}
.btn:hover { text-decoration: none; border-color: var(--blue); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--navy); }
.btn:disabled { opacity: 0.6; cursor: default; }

/* Ảnh nền đầu trang: có file images/hero.jpg thì hiện ảnh, chưa có thì hiện nền màu */
.hero {
  background-color: #cfe4f7;
  background-image: linear-gradient(90deg, rgba(234, 243, 252, 0.96) 0%, rgba(234, 243, 252, 0.8) 42%, rgba(234, 243, 252, 0) 75%), url('images/hero.jpg'), linear-gradient(135deg, #dcecfb, #a9cdee);
  background-size: cover;
  background-position: center;
}
.hero .wrap { padding-top: 52px; padding-bottom: 52px; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); font-weight: 800; }
.hero p { max-width: 520px; margin: 10px 0 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }
.card h2 { font-size: 20px; letter-spacing: 0.02em; }

.pill { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.tier-silver { background: #eceff3; color: #4a5565; }
.tier-gold { background: var(--gold-bg); color: var(--gold); }
.tier-diamond { background: #e1effe; color: #0b5cad; }
.tier-vip { background: #efe6fb; color: #5b2a9d; }
.state-done { background: var(--ok-bg); color: var(--ok); }
.state-upcoming { background: #e1effe; color: #0b5cad; }
.state-running { background: var(--gold-bg); color: var(--gold); }

table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); background: #f1f6fb; padding: 11px 12px; }
td { padding: 12px; border-top: 1px solid var(--line); }
.num { text-align: right; white-space: nowrap; }
.table-scroll { overflow-x: auto; }

.notice { padding: 12px 14px; border-radius: 10px; background: #fdecec; color: #a12222; margin-top: 14px; }

footer { padding: 28px 0 40px; text-align: center; font-size: 14px; color: var(--muted); }