* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "Microsoft JhengHei", sans-serif;
  background: #f4f6fa; color: #233;
}
a { color: inherit; text-decoration: none; }

/* layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; background: #1f2a44; color: #cdd5e6;
  display: flex; flex-direction: column; padding: 18px 0;
}
.brand { font-size: 22px; font-weight: 700; color: #fff; padding: 0 20px 6px; }
.brand span { display: block; font-size: 12px; color: #8ea0c8; font-weight: 400; }
.sidebar nav { margin-top: 20px; display: flex; flex-direction: column; }
.sidebar nav a {
  padding: 12px 20px; font-size: 14px; border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: #28365a; }
.sidebar nav a.active { background: #2d3e68; border-left-color: #5b8cff; color: #fff; }
.cert-tags { margin-top: auto; padding: 16px 20px; font-size: 11px; color: #7b8cb5; }

.main { flex: 1; display: flex; flex-direction: column; }
.topbar {
  background: #fff; padding: 14px 28px; display: flex; justify-content: space-between;
  align-items: center; border-bottom: 1px solid #e3e8f0;
}
.topbar h1 { font-size: 19px; }
.topbar .sub { font-size: 12px; color: #889; }
.user { font-size: 14px; }
.user a { color: #5b8cff; }
.role { font-size: 11px; padding: 2px 8px; border-radius: 10px; margin-right: 6px; }
.role-qa { background: #e7f0ff; color: #2b5bd7; }
.role-manager { background: #ffe9d6; color: #c2620a; }
.role-staff { background: #e6f7ec; color: #1f8a4c; }
.content { padding: 24px 28px; }

/* cards — 流體式:欄數依寬度自動,字級/間距隨螢幕縮放 */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr));
  gap: clamp(10px, 1.5vw, 16px);
}
.card {
  background: #fff; border-radius: 12px;
  padding: clamp(14px, 2.4vw, 20px);
  box-shadow: 0 1px 3px rgba(30,40,70,.08);
}
.card .num { font-size: clamp(1.5rem, 1rem + 2.4vw, 2rem); font-weight: 700; line-height: 1.1; }
.card .label { font-size: clamp(12px, 0.7rem + 0.3vw, 13px); color: #778; margin-top: 4px; }
.card.alert .num { color: #e2453c; }
.card.warn .num { color: #e08a00; }
.card.ok .num { color: #1f8a4c; }

.section { background:#fff; border-radius:12px; padding:20px; margin-top:22px;
  box-shadow:0 1px 3px rgba(30,40,70,.08); }
.section h2 { font-size:16px; margin-bottom:14px; }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #eef1f6; }
th { color: #889; font-weight: 600; font-size: 12px; text-transform: uppercase; }
tr:hover td { background: #fafbfe; }

/* badges */
.badge { font-size: 12px; padding: 3px 9px; border-radius: 12px; white-space: nowrap; }
.b-cert { background: #eef2fb; color: #44557f; }
.b-ok { background: #e6f7ec; color: #1f8a4c; }
.b-wait { background: #fff4d6; color: #b07900; }
.b-danger { background: #fde6e4; color: #d23a2f; }
.b-grey { background: #eef0f4; color: #667; }
.days-danger { color:#d23a2f; font-weight:700; }
.days-warn { color:#e08a00; font-weight:600; }

/* buttons / forms */
.btn { display:inline-block; background:#5b8cff; color:#fff; border:none;
  padding:8px 16px; border-radius:8px; font-size:14px; cursor:pointer; }
.btn:hover { background:#3f74f0; }
.btn-sm { padding:5px 12px; font-size:13px; }
.btn-grey { background:#e8ebf2; color:#445; }
.btn-ai { background:#7c5cff; }
.btn-ai:hover { background:#6a47f0; }
form.inline { display:inline; }
.field { margin-bottom:16px; }
.field label { display:block; font-size:13px; color:#556; margin-bottom:6px; }
.field input, .field select, .field textarea {
  width:100%; padding:9px 11px; border:1px solid #d4dae6; border-radius:8px; font-size:14px;
  font-family:inherit;
}
.field textarea { min-height:90px; resize:vertical; }
.hint { font-size:12px; color:#99a; margin-top:5px; }

/* flash */
.flash { padding:11px 16px; border-radius:8px; margin-bottom:16px; font-size:14px; }
.flash-ok { background:#e6f7ec; color:#1f7a44; }
.flash-error { background:#fde6e4; color:#c2342a; }

/* login */
.login-wrap { display:flex; align-items:center; justify-content:center; min-height:100vh;
  background:linear-gradient(135deg,#1f2a44,#2d3e68); }
.login-box { background:#fff; padding:36px 34px; border-radius:16px; width:340px;
  box-shadow:0 10px 40px rgba(0,0,0,.25); }
.login-box h1 { font-size:21px; margin-bottom:4px; }
.login-box .sub { font-size:12px; color:#889; margin-bottom:22px; }
.demo-creds { margin-top:18px; font-size:12px; color:#778; background:#f4f6fa;
  padding:10px 12px; border-radius:8px; line-height:1.7; }

.ai-summary { background:#f6f3ff; border-left:3px solid #7c5cff; padding:10px 14px;
  border-radius:6px; font-size:13px; white-space:pre-wrap; line-height:1.6; margin-top:8px; }
.muted { color:#99a; font-size:13px; }
.reg-card { border:1px solid #eef1f6; border-radius:10px; padding:16px; margin-bottom:14px; }
.reg-card h3 { font-size:15px; margin-bottom:6px; }
.reg-meta { font-size:12px; color:#889; margin-bottom:8px; }

/* ---- 手機 / 平板 響應式 ---- */
@media (max-width: 768px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%; flex-direction: column; padding: 10px 0;
  }
  .brand { padding: 0 16px 8px; }
  .sidebar nav {
    margin-top: 8px; flex-direction: row; flex-wrap: wrap; gap: 4px; padding: 0 8px;
  }
  .sidebar nav a {
    flex: 1 1 auto; text-align: center; padding: 10px 8px; font-size: 13px;
    border-left: none; border-bottom: 3px solid transparent; border-radius: 6px;
  }
  .sidebar nav a.active { border-left: none; border-bottom-color: #5b8cff; }
  .cert-tags { display: none; }
  .topbar { padding: 12px 16px; flex-wrap: wrap; gap: 6px; }
  .topbar h1 { font-size: 17px; }
  .content { padding: 16px; }
  /* 手機:統計卡固定兩欄,整齊 */
  .cards { grid-template-columns: repeat(2, 1fr); }
  /* 表格可橫向捲動,不擠壓 */
  .section { overflow-x: auto; padding: 14px; }
  table { min-width: 560px; }
  /* 輸入元件加大,方便手指點選 */
  .field input, .field select, .field textarea { padding: 12px; font-size: 16px; }
  .btn { padding: 11px 18px; }
}

/* 很窄的手機:統計卡改單欄,避免擠壓 */
@media (max-width: 380px) {
  .cards { grid-template-columns: 1fr; }
}

/* 平板:統計卡三欄 */
@media (min-width: 769px) and (max-width: 1100px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

/* 超寬螢幕:內容置中,不過度拉伸 */
@media (min-width: 1500px) {
  .content { max-width: 1400px; margin: 0 auto; width: 100%; }
}