:root {
  --accent: #667A9E;
  --accent-light: #E8EDF5;
  --sidebar-bg: #526582;
  --sidebar-text: #E7ECF4;
  --sidebar-active: #667A9E;
  --surface-0: #F3F6FA;
  --surface-1: #FFFFFF;
  --surface-2: #F8FAFC;
  --text-primary: #2F343B;
  --text-secondary: #687382;
  --border: #D7DCE2;
  --radius: 10px;
  --green: #16A34A;
  --red: #DC2626;
  --amber: #D97706;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--surface-0);
  color: var(--text-primary);
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-weight: 600; }

.container { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem; }
.narrow { max-width: 440px; }

.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
}

/* ---------- Admin shell ---------- */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 220px; background: var(--sidebar-bg); color: var(--sidebar-text);
  padding: 1.25rem 0.9rem; flex-shrink: 0;
}
.admin-sidebar .brand { color: #fff; font-weight: 700; font-size: 16px; padding: 0 8px 1.25rem; }
.admin-sidebar a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px; font-size: 14px;
  color: var(--sidebar-text); margin-bottom: 2px;
}
.admin-sidebar a.active { background: var(--sidebar-active); color: #fff; }
.admin-sidebar a:hover:not(.active) { background: rgba(255,255,255,0.06); color: #fff; }

.icon { flex-shrink: 0; vertical-align: middle; }
.icon-inline { display: inline-block; vertical-align: -3px; margin-right: 4px; }
.icon-btn { display: inline-flex; align-items: center; gap: 6px; }
.dot-label { display: inline-flex; align-items: center; gap: 7px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; flex-shrink: 0; }

.admin-main { flex: 1; min-width: 0; }
.admin-topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.75rem; border-bottom: 1px solid var(--border); background: var(--surface-1);
}
.admin-content { padding: 1.5rem 1.75rem; }

.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent-light); color: var(--accent);
  display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 13px;
}

/* ---------- Stat cards ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 1.5rem; }
.stat-card { background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem 1.25rem; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin: 0 0 6px; }
.stat-value { font-size: 22px; font-weight: 700; margin: 0; }
.stat-delta { font-size: 12px; color: var(--green); margin-top: 4px; }

.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; align-items: start; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

.section-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.section-title h3 { margin: 0; font-size: 15px; }
.section-title a { font-size: 13px; }

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; color: var(--text-secondary); margin: 12px 0 4px; font-weight: 500; }
input, select, textarea {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; background: var(--surface-1); color: var(--text-primary); font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }

button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--accent); color: #fff; border: none;
  border-radius: 8px; padding: 10px 18px;
  font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--border); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Tables ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--text-secondary); font-weight: 600; padding: 8px 6px; border-bottom: 1px solid var(--border); }
td { padding: 10px 6px; border-bottom: 1px solid var(--border); }
td.num, th.num { text-align: right; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-available { background: #DCFCE7; color: var(--green); }
.badge-sold { background: #F3E8FF; color: #7E22CE; }
.badge-reserved { background: #FEF3C7; color: var(--amber); }

.error { color: var(--red); font-size: 13px; margin: 8px 0; }
.hint { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* ---------- Landing page ---------- */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 2rem; border-bottom: 1px solid var(--border); }
.nav-links { display: flex; gap: 1.75rem; align-items: center; font-size: 14px; color: var(--text-secondary); }
.hero { max-width: 560px; padding: 3.5rem 2rem; }
.hero h1 { font-size: 42px; line-height: 1.15; margin: 0 0 1rem; }
.pill { display: inline-block; background: var(--accent-light); color: var(--accent); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 20px; margin-bottom: 1rem; }
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; padding: 0 2rem 3rem; max-width: 1100px; margin: 0 auto; }
.feature { display: flex; gap: 10px; }
.feature-icon { width: 34px; height: 34px; border-radius: 8px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* ---------- Mobile agent app ---------- */
.mobile-shell { max-width: 480px; margin: 0 auto; min-height: 100vh; background: var(--surface-0); display: flex; flex-direction: column; }
.mobile-topbar { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.1rem; background: var(--surface-1); border-bottom: 1px solid var(--border); }
.mobile-content { flex: 1; padding: 1.1rem; padding-bottom: 5.5rem; }
.mobile-bottomnav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px; background: var(--surface-1); border-top: 1px solid var(--border);
  display: flex; justify-content: space-around; padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
}
.mobile-bottomnav a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; color: var(--text-secondary); }
.mobile-bottomnav a.active { color: var(--accent); }
.mobile-bottomnav .nav-icon { display: flex; }

.step-badge { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 4px; }
.imei-scan-box {
  border: 2px dashed var(--border); border-radius: 12px; padding: 2rem 1rem;
  text-align: center; color: var(--text-secondary); font-size: 13px; margin-bottom: 1rem; background: var(--surface-1);
}
.phone-found-card { display: flex; gap: 12px; align-items: center; background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; margin-bottom: 1rem; }
.phone-icon-box { width: 52px; height: 52px; border-radius: 10px; background: var(--accent-light); display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }

.pay-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 10px 0 1.5rem; }
.pay-option { display: flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 10px; padding: 12px; cursor: pointer; font-size: 14px; font-weight: 500; background: var(--surface-1); }
.pay-option input { width: auto; margin: 0; }
.pay-option.checked { border-color: var(--accent); background: var(--accent-light); }

.success-check { width: 72px; height: 72px; border-radius: 50%; background: var(--green); color: #fff; font-size: 34px; display: flex; align-items: center; justify-content: center; margin: 2rem auto 1rem; }

.list-row { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); }
.list-row:last-child { border-bottom: none; }

.auth-page{min-height:100vh;background:var(--surface-0);display:grid;place-items:center}.auth-shell{width:min(440px,calc(100% - 32px))}.auth-brand{font-size:24px;font-weight:800;letter-spacing:.04em;text-align:center;margin-bottom:18px}.auth-brand span{font-size:12px;font-weight:600;color:var(--text-secondary);margin-left:6px}.auth-card{padding:28px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:8px}.auth-card h1{margin:0 0 5px}.error-box{background:#FBEAEA;border:1px solid #E8BDBD;color:#9B3D3D;border-radius:8px;padding:10px 12px;font-size:13px;margin:12px 0}.platform-sidebar{background:#526582}.platform-sidebar .brand small{display:block;font-size:9px;letter-spacing:.12em;color:#DCE4EF;margin-top:3px}.sidebar-logout{background:transparent;color:var(--sidebar-text);border:0;padding:9px 12px;width:100%;text-align:left;font-size:14px}.sidebar-logout:hover{color:#fff}.user-chip{display:flex;align-items:center;gap:9px;font-size:13px}.btn-small{padding:6px 10px;font-size:12px}.table-wrap{overflow:auto}

/* PWA */
.pwa-status {
  margin: 0;
  padding: 7px 12px;
  font-size: 12px;
  line-height: 1.35;
  text-align: center;
  background: var(--surface-2, #eef1f5);
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
[data-install-app] { display: none; }