:root{
  --bg:#f6f4ef;
  --bg-soft:#efebe5;
  --panel:#fbfaf7;
  --panel-2:#ffffff;
  --sidebar:#111827;
  --sidebar-2:#0f172a;
  --text:#1f2937;
  --text-soft:#667085;
  --text-faint:#98a2b3;
  --line:#ddd6cc;
  --line-soft:#ebe5dd;

  --primary:#0f766e;
  --primary-hover:#115e59;
  --primary-soft:#dff4f1;

  --danger:#b42318;
  --danger-hover:#912018;
  --danger-soft:#fee4e2;

  --success:#166534;
  --success-soft:#dcfce7;

  --shadow-sm:0 2px 8px rgba(15,23,42,.04);
  --shadow-md:0 12px 30px rgba(15,23,42,.08);
  --shadow-lg:0 24px 60px rgba(15,23,42,.12);

  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:20px;
  --sidebar-width:280px;
  --content-width:1440px;
}

*,
*::before,
*::after{box-sizing:border-box}

html,body{margin:0;padding:0}

body{
  min-height:100vh;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.5;
  color:var(--text);
  background:
    radial-gradient(circle at top right, rgba(15,118,110,.06), transparent 22%),
    linear-gradient(180deg, #f8f6f2 0%, #f3efe8 100%);
}

a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
img,svg{display:block;max-width:100%}

.layout{
  display:grid;
  grid-template-columns:var(--sidebar-width) 1fr;
  min-height:100vh;
}

.sidebar{
  position:sticky;
  top:0;
  height:100vh;
  padding:20px 16px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0)),
    linear-gradient(180deg, var(--sidebar), var(--sidebar-2));
  color:#fff;
  border-right:1px solid rgba(255,255,255,.06);
  z-index:30;
}

.brand{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}

.brand-mark{
  display:flex;
  align-items:center;
  gap:12px;
}

.brand-logo{
  width:16px;
  height:16px;
  border-radius:5px;
  background:linear-gradient(180deg,#55d0c4,#0f766e);
  box-shadow:0 0 0 4px rgba(85,208,196,.12);
}

.brand-title{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.03em;
}

.sidebar-section{
  margin:18px 10px 8px;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:rgba(255,255,255,.42);
}

.nav{
  display:flex;
  flex-direction:column;
  gap:6px;
}

.nav a{
  display:flex;
  align-items:center;
  gap:12px;
  min-height:46px;
  padding:12px 14px;
  border-radius:14px;
  color:#d7e3f4;
  font-size:14px;
  font-weight:700;
  transition:all .18s ease;
}

.nav a svg{
  width:18px;
  height:18px;
  stroke-width:2.2;
}

.nav a:hover{
  background:rgba(255,255,255,.08);
  color:#fff;
  transform:translateX(1px);
}

.nav a.active{
  color:#fff;
  background:linear-gradient(180deg, rgba(85,208,196,.18), rgba(15,118,110,.18));
  box-shadow:inset 0 0 0 1px rgba(85,208,196,.16);
}

.sidebar-footer{
  margin-top:auto;
  padding-top:16px;
}

.sidebar-stack{
  display:flex;
  flex-direction:column;
  height:100%;
}

.content{
  min-width:0;
  padding:28px;
}

.content-inner{
  max-width:var(--content-width);
  margin:0 auto;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:16px;
  margin-bottom:24px;
}

.topbar-left h1{
  margin:0;
  font-size:32px;
  line-height:1.05;
  letter-spacing:-.04em;
}

.topbar-meta{
  margin-top:8px;
  font-size:14px;
  color:var(--text-soft);
}

.topbar-actions{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}

.mobile-nav-toggle{
  display:none;
}

.surface{
  background:rgba(255,255,255,.46);
  border:1px solid rgba(255,255,255,.56);
  border-radius:22px;
  backdrop-filter:blur(10px);
  padding:18px;
  box-shadow:var(--shadow-sm);
  margin-bottom:20px;
}

.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-bottom:20px;
}

.stat-card{
  background:linear-gradient(180deg, var(--panel-2), var(--panel));
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow-sm);
}

.stat-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}

.stat-label{
  font-size:13px;
  color:var(--text-soft);
  font-weight:600;
}

.stat-icon{
  width:38px;
  height:38px;
  border-radius:12px;
  display:grid;
  place-items:center;
  color:var(--primary);
  background:var(--primary-soft);
}

.stat-icon svg{
  width:18px;
  height:18px;
}

.stat-value{
  font-size:30px;
  font-weight:800;
  letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
}

.grid-2{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:20px;
}

.card{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);
  border-radius:20px;
  padding:22px;
  box-shadow:var(--shadow-md);
  margin-bottom:20px;
}

.card-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}

.card-header h2{
  margin:0;
  font-size:19px;
  line-height:1.2;
  letter-spacing:-.02em;
}

.helper,
.small{
  font-size:13px;
  color:var(--text-soft);
}

.notice{
  display:flex;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  border-radius:14px;
  margin-bottom:14px;
  border:1px solid transparent;
  font-size:14px;
  font-weight:600;
}

.notice.success{
  background:var(--success-soft);
  color:var(--success);
  border-color:#b7ebc6;
}

.notice.error{
  background:var(--danger-soft);
  color:var(--danger);
  border-color:#f2c7c2;
}

.btn,
button,
.btn-link{
  appearance:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 16px;
  border:none;
  border-radius:12px;
  cursor:pointer;
  font-size:14px;
  font-weight:700;
  transition:all .18s ease;
}

.btn svg,
button svg{
  width:17px;
  height:17px;
}

.btn{
  color:#fff;
  background:linear-gradient(180deg,var(--primary),var(--primary-hover));
  box-shadow:0 8px 18px rgba(15,118,110,.18);
}

.btn:hover{
  transform:translateY(-1px);
  box-shadow:0 12px 24px rgba(15,118,110,.24);
}

.btn-secondary{
  background:#eef2f6;
  color:#334155;
  border:1px solid #dfe5ec;
}

.btn-secondary:hover{
  background:#e8edf3;
}

.btn-danger{
  background:linear-gradient(180deg,var(--danger),var(--danger-hover));
  color:#fff;
}

.btn-danger:hover{
  transform:translateY(-1px);
}

.icon-btn{
  width:42px;
  min-width:42px;
  padding:0;
}

.toolbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:16px;
}

form.grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}

form.grid .full{
  grid-column:1/-1;
}

label{
  display:block;
  margin-bottom:7px;
  font-size:13px;
  font-weight:700;
  color:#344054;
}

input,select,textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid #d8dee6;
  border-radius:13px;
  background:#fff;
  color:var(--text);
  outline:none;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

input::placeholder,
textarea::placeholder{
  color:var(--text-faint);
}

input:focus,
select:focus,
textarea:focus{
  border-color:#55d0c4;
  box-shadow:0 0 0 4px rgba(85,208,196,.14);
}

.table-wrap{
  overflow:auto;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
}

table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:#fff;
}

th,td{
  padding:14px 14px;
  text-align:left;
  vertical-align:middle;
  border-bottom:1px solid var(--line-soft);
}

th{
  background:#faf8f4;
  position:sticky;
  top:0;
  z-index:1;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.04em;
  color:var(--text-soft);
}

tbody tr{
  transition:background .15s ease;
}

tbody tr:hover{
  background:#fbfcfd;
}

tbody tr:last-child td{
  border-bottom:none;
}

.actions{
  display:flex;
  gap:8px;
  justify-content:flex-end;
  align-items:center;
  flex-wrap:wrap;
}

.badge{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:4px 10px;
  border-radius:999px;
  background:var(--primary-soft);
  color:#0d5f58;
  font-size:12px;
  font-weight:700;
}

.status-open{
  background:#fff4db;
  color:#9a6700;
}

.status-done{
  background:#dcfce7;
  color:#166534;
}

.quick-links{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}

.quick-link{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  box-shadow:var(--shadow-sm);
  transition:all .16s ease;
}

.quick-link:hover{
  transform:translateY(-1px);
  border-color:#cfdad7;
}

.quick-link-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  display:grid;
  place-items:center;
}

.quick-link-icon svg{
  width:18px;
  height:18px;
}

.list-links{
  display:grid;
  gap:10px;
}

a.guest-link{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  box-shadow:var(--shadow-sm);
  transition:all .16s ease;
}

a.guest-link:hover{
  border-color:#cfdad7;
  transform:translateY(-1px);
}

.sig-box{
  border:1px dashed #c8d2dc;
  border-radius:18px;
  overflow:hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,.97), rgba(248,250,252,.93));
}

#signature-pad{
  width:100%;
  height:280px;
  display:block;
  touch-action:none;
  background:
    linear-gradient(transparent 31px, rgba(15,23,42,.04) 32px),
    linear-gradient(90deg, transparent 31px, rgba(15,23,42,.03) 32px);
  background-size:32px 32px;
}

.login-wrap{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:24px;
  background:
    radial-gradient(circle at top left, rgba(15,118,110,.1), transparent 22%),
    linear-gradient(180deg, #f8f6f1 0%, #f2eee7 100%);
}

.login-card{
  width:100%;
  max-width:450px;
  background:rgba(255,255,255,.84);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.85);
  border-radius:24px;
  box-shadow:var(--shadow-lg);
  padding:30px;
}

.login-logo{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}

.login-logo .brand-logo{
  width:18px;
  height:18px;
}

.login-title{
  margin:0 0 8px;
  font-size:30px;
  letter-spacing:-.04em;
}

.login-subtitle{
  margin:0 0 22px;
  color:var(--text-soft);
  font-size:14px;
}

.empty-state{
  padding:34px 20px;
  text-align:center;
  color:var(--text-soft);
}

.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.overlay{
  display:none;
}

@media (max-width: 1180px){
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2{grid-template-columns:1fr}
}

@media (max-width: 920px){
  .layout{grid-template-columns:1fr}
  .sidebar{
    position:fixed;
    left:0;
    top:0;
    bottom:0;
    width:var(--sidebar-width);
    transform:translateX(-100%);
    transition:transform .2s ease;
    box-shadow:var(--shadow-lg);
  }
  .layout.sidebar-open .sidebar{
    transform:translateX(0);
  }
  .overlay{
    position:fixed;
    inset:0;
    background:rgba(15,23,42,.35);
    display:none;
    z-index:20;
  }
  .layout.sidebar-open .overlay{
    display:block;
  }
  .content{padding:18px}
  .mobile-nav-toggle{display:inline-flex}
  .topbar{align-items:flex-start}
  form.grid{grid-template-columns:1fr}
}

@media (max-width: 640px){
  .stats{grid-template-columns:1fr}
  .quick-links{grid-template-columns:1fr}
  .content{padding:14px}
  .card{padding:16px}
  .topbar-left h1{font-size:26px}
  th,td{padding:12px 10px}
  .actions{justify-content:flex-start}
}