@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700;800&display=swap');

:root {
  --bg-root:    #060c14;
  --bg-dark:    #0a1220;
  --bg-card:    #0d1a2d;
  --bg-card2:   #111f33;
  --bg-hover:   #162540;
  --accent:     #00d4aa;
  --accent-dim: #009e80;
  --accent-glow:#00d4aa33;
  --danger:     #ff4d6d;
  --warning:    #ffb347;
  --info:       #38bdf8;
  --success:    #22c55e;
  --text-main:  #e8f0f8;
  --text-muted: #6b8aa8;
  --text-soft:  #9ab2c8;
  --border:     #1a2e45;
  --border-accent: #00d4aa40;
  --radius:     14px;
  --radius-sm:  8px;
  --shadow:     0 4px 24px rgba(0,0,0,.5);
  --shadow-lg:  0 8px 40px rgba(0,0,0,.7);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: 'Sarabun', sans-serif;
  background: var(--bg-root);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.6;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ─── Navbar ─── */
.top-navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(6,12,20,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.nav-brand-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--accent); color: #060c14;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 700;
}
.nav-brand-text { line-height: 1.2; }
.nav-brand-text .title { font-size: .95rem; font-weight: 700; color: var(--text-main); }
.nav-brand-text .sub { font-size: .7rem; color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: .5rem; }
.nav-link-btn {
  color: var(--text-soft); text-decoration: none; padding: .4rem .9rem;
  border-radius: var(--radius-sm); font-size: .88rem;
  transition: all .2s; border: none; background: none; cursor: pointer;
}
.nav-link-btn:hover { color: var(--accent); background: var(--accent-glow); }
.nav-link-btn.active { color: var(--accent); }
.btn-nav-primary {
  background: var(--accent); color: #060c14 !important;
  padding: .45rem 1.2rem; border-radius: var(--radius-sm);
  font-weight: 700; font-size: .88rem; text-decoration: none;
  transition: all .2s; border: none; cursor: pointer; display: flex; align-items: center; gap: .4rem;
}
.btn-nav-primary:hover { background: var(--accent-dim); transform: translateY(-1px); }
.user-chip {
  display: flex; align-items: center; gap: .5rem;
  background: var(--bg-card); border: 1px solid var(--border);
  padding: .4rem .8rem; border-radius: 20px; font-size: .85rem;
}
.user-chip .dot { width: 8px; height: 8px; background: var(--success); border-radius: 50%; }

/* ─── Layout ─── */
.layout { display: flex; min-height: calc(100vh - 57px); }

/* ─── Sidebar ─── */
.sidebar {
  width: 240px; min-width: 240px;
  background: var(--bg-dark);
  border-right: 1px solid var(--border);
  padding: 1.25rem .75rem;
  position: sticky; top: 57px; height: calc(100vh - 57px); overflow-y: auto;
}
.sidebar-section { margin-bottom: 1.5rem; }
.sidebar-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--text-muted);
  padding: 0 .75rem; margin-bottom: .4rem;
}
.sidebar-link {
  display: flex; align-items: center; gap: .65rem;
  padding: .6rem .75rem; border-radius: var(--radius-sm);
  color: var(--text-soft); text-decoration: none;
  font-size: .88rem; font-weight: 500; transition: all .2s;
  margin-bottom: 2px;
}
.sidebar-link i { width: 18px; text-align: center; font-size: .9rem; }
.sidebar-link:hover { color: var(--text-main); background: var(--bg-hover); }
.sidebar-link.active { color: var(--accent); background: var(--accent-glow); }
.sidebar-link.active i { color: var(--accent); }

/* ─── Main Content ─── */
.main { flex: 1; padding: 1.75rem 2rem; overflow-x: hidden; }

/* ─── Page Header ─── */
.page-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.page-header h1, .page-header h2, .page-header h3, .page-header h4 {
  color: var(--text-main); font-weight: 700;
}
.page-header .sub { color: var(--text-muted); font-size: .9rem; margin-top: .25rem; }

/* ─── Cards ─── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600; font-size: .9rem;
  display: flex; align-items: center; justify-content: space-between;
  color: var(--text-main);
}
.card-header i { color: var(--accent); }
.card-body { padding: 1.25rem; }
.card-footer {
  padding: .75rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg-dark);
}

/* ─── Stat Cards ─── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px,1fr)); gap: 1rem; margin-bottom: 1.75rem; }
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  transition: all .25s;
}
.stat-card:hover { border-color: var(--accent-dim); transform: translateY(-2px); background: var(--bg-card2); }
.stat-num {
  font-size: 2rem; font-weight: 800; color: var(--accent);
  line-height: 1; margin-bottom: .35rem;
}
.stat-label { font-size: .8rem; color: var(--text-muted); font-weight: 500; }
.stat-icon { color: var(--accent); font-size: 1.2rem; margin-bottom: .5rem; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .5rem 1.1rem; border-radius: var(--radius-sm);
  font-family: 'Sarabun', sans-serif; font-size: .875rem; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: all .2s;
  border: 1px solid transparent; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #060c14; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dim); transform: translateY(-1px); box-shadow: 0 4px 16px var(--accent-glow); }
.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent-glow); }
.btn-ghost { background: var(--bg-card2); color: var(--text-soft); border-color: var(--border); }
.btn-ghost:hover { color: var(--text-main); border-color: var(--text-soft); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #e0364f; }
.btn-warning { background: var(--warning); color: #060c14; border-color: var(--warning); }
.btn-sm { padding: .35rem .75rem; font-size: .8rem; }
.btn-lg { padding: .75rem 1.75rem; font-size: 1rem; border-radius: 10px; }

/* ─── Forms ─── */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: .85rem; font-weight: 600; color: var(--text-soft); margin-bottom: .4rem; }
.form-control {
  width: 100%; padding: .6rem .9rem;
  background: var(--bg-root); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-main);
  font-family: 'Sarabun', sans-serif; font-size: .9rem;
  transition: border-color .2s;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-control::placeholder { color: var(--text-muted); }
.form-select {
  width: 100%; padding: .6rem .9rem;
  background: var(--bg-root) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%236b8aa8' viewBox='0 0 16 16'%3e%3cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3e%3c/svg%3e") no-repeat right .75rem center/16px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-main); font-family: 'Sarabun', sans-serif; font-size: .9rem;
  cursor: pointer; appearance: none;
}
.form-select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-check { display: flex; align-items: center; gap: .5rem; padding: .3rem 0; }
.form-check-input { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; }
.form-row { display: grid; gap: .75rem; }
.form-row-2 { grid-template-columns: 1fr 1fr; }
.form-row-3 { grid-template-columns: 1fr 1fr 1fr; }
.input-group { display: flex; }
.input-group .form-control { border-radius: var(--radius-sm) 0 0 var(--radius-sm); flex: 1; }
.input-group .btn { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.input-icon { position: relative; }
.input-icon i { position: absolute; left: .85rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.input-icon .form-control { padding-left: 2.5rem; }

/* ─── Tables ─── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead tr { background: var(--bg-dark); border-bottom: 2px solid var(--border); }
thead th { padding: .75rem 1rem; text-align: left; font-weight: 600; color: var(--text-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .15s; }
tbody tr:hover { background: var(--bg-hover); }
tbody tr:last-child { border-bottom: none; }
tbody td { padding: .75rem 1rem; color: var(--text-main); }
.td-muted { color: var(--text-muted); font-size: .82rem; }

/* ─── Badges ─── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .2rem .65rem; border-radius: 20px;
  font-size: .75rem; font-weight: 700; letter-spacing: .03em;
}
.badge-success { background: rgba(34,197,94,.15); color: var(--success); border: 1px solid rgba(34,197,94,.3); }
.badge-danger  { background: rgba(255,77,109,.15); color: var(--danger); border: 1px solid rgba(255,77,109,.3); }
.badge-accent  { background: var(--accent-glow); color: var(--accent); border: 1px solid var(--border-accent); }
.badge-muted   { background: var(--bg-card2); color: var(--text-muted); border: 1px solid var(--border); }
.badge-warning { background: rgba(255,179,71,.15); color: var(--warning); border: 1px solid rgba(255,179,71,.3); }
.badge-info    { background: rgba(56,189,248,.15); color: var(--info); border: 1px solid rgba(56,189,248,.3); }

/* ─── Alerts ─── */
.alert {
  padding: .9rem 1.1rem; border-radius: var(--radius-sm);
  font-size: .875rem; margin-bottom: 1rem; display: flex; align-items: flex-start; gap: .6rem;
}
.alert-success { background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.3); color: var(--success); }
.alert-danger  { background: rgba(255,77,109,.1); border: 1px solid rgba(255,77,109,.3); color: var(--danger); }
.alert-info    { background: rgba(56,189,248,.1); border: 1px solid rgba(56,189,248,.3); color: var(--info); }
.alert-warning { background: rgba(255,179,71,.1); border: 1px solid rgba(255,179,71,.3); color: var(--warning); }

/* ─── Progress ─── */
.progress { background: var(--bg-dark); border-radius: 10px; overflow: hidden; height: 6px; }
.progress-bar { background: var(--accent); height: 100%; border-radius: 10px; transition: width .4s; }
.progress-bar.danger { background: var(--danger); }

/* ─── Live dot ─── */
.live-dot { display: inline-flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--success); font-weight: 600; }
.live-dot::before { content: ''; width: 7px; height: 7px; background: var(--success); border-radius: 50%; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }

/* ─── Divider ─── */
.divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }

/* ─── Tabs ─── */
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; }
.tab-btn {
  padding: .6rem 1.1rem; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  font-size: .875rem; font-weight: 600; color: var(--text-muted);
  cursor: pointer; border: none; background: none;
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: all .2s;
  font-family: 'Sarabun', sans-serif; text-decoration: none;
}
.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ─── Misc ─── */
.text-accent { color: var(--accent); }
.text-muted-c { color: var(--text-muted); }
.text-sm { font-size: .82rem; }
.fw-bold { font-weight: 700; }
.fw-800 { font-weight: 800; }
.gap-1 { gap: .4rem; }
.gap-2 { gap: .75rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.w-full { width: 100%; }
.mt-1 { margin-top: .4rem; }
.mt-2 { margin-top: .75rem; }
.mt-3 { margin-top: 1.25rem; }
.mb-1 { margin-bottom: .4rem; }
.mb-2 { margin-bottom: .75rem; }
.mb-3 { margin-bottom: 1.25rem; }
.p-0 { padding: 0 !important; }
code {
  background: var(--bg-dark); border: 1px solid var(--border);
  padding: .1rem .45rem; border-radius: 4px;
  color: var(--accent); font-size: .82rem; font-family: monospace;
}
.teal-number { color: var(--accent); font-weight: 800; }