/* =========================================================
   HelpDesk — design system
   Palette:  ink #1C2530  |  teal #2F6F63  |  signal #C1502E
             paper #F7F8FA | surface #FFFFFF | line #E2E5E9
   Type: Space Grotesk (display) / Inter (body) / IBM Plex Mono (data)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#1C2530;
  --ink-soft:#4B5563;
  --teal:#2F6F63;
  --teal-dark:#245349;
  --teal-tint:#E7F1EE;
  --signal:#C1502E;
  --signal-tint:#FBEAE3;
  --paper:#F7F8FA;
  --surface:#FFFFFF;
  --line:#E2E5E9;
  --line-soft:#EEF0F2;
  --amber:#B8860B;
  --amber-tint:#FBF3DF;
  --blue:#2A6FA8;
  --blue-tint:#E8F1F9;
  --green:#2E7D4F;
  --green-tint:#E7F5EC;
  --gray-tint:#EEF0F2;
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 1px 2px rgba(28,37,48,.06), 0 1px 1px rgba(28,37,48,.04);
  --shadow-md:0 8px 24px rgba(28,37,48,.10);
  --sidebar-w:230px;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:14.5px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;
  color:var(--ink);
  margin:0 0 4px;
  letter-spacing:-.01em;
}
a{color:var(--teal);text-decoration:none;}
a:hover{text-decoration:underline;}
.mono{font-family:'IBM Plex Mono',monospace;}
button, input, select, textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;}

/* ---------- App shell ---------- */
.app{display:flex;min-height:100vh;}

.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:var(--ink);
  color:#CBD3DA;
  position:fixed;
  top:0;left:0;bottom:0;
  display:flex;
  flex-direction:column;
  z-index:40;
  transition:transform .25s ease;
}
.sidebar-brand{
  padding:20px 18px 16px;
  display:flex;
  align-items:center;
  gap:10px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.sidebar-brand .mark{
  width:30px;height:30px;border-radius:7px;
  background:var(--teal);
  display:flex;align-items:center;justify-content:center;
  font-family:'Space Grotesk',sans-serif;font-weight:700;color:#fff;font-size:14px;
  flex-shrink:0;
}
.sidebar-brand .name{font-family:'Space Grotesk',sans-serif;font-weight:600;color:#fff;font-size:15px;}
.sidebar-brand .sub{font-size:11px;color:#8B98A5;}

.sidebar-nav{padding:14px 10px;flex:1;overflow-y:auto;}
.sidebar-section-label{
  font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;
  color:#6B7684;padding:14px 10px 6px;
}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:var(--radius-sm);
  color:#CBD3DA;font-size:13.5px;font-weight:500;
  margin-bottom:2px;
}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.85;}
.nav-item:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff;}
.nav-item.active{background:var(--teal);color:#fff;}
.nav-item.active svg{opacity:1;}
.nav-badge{
  margin-left:auto;background:var(--signal);color:#fff;
  font-size:10.5px;font-weight:700;border-radius:10px;padding:1px 7px;
}

.sidebar-user{
  padding:14px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:10px;
}
.avatar{
  width:32px;height:32px;border-radius:50%;
  background:var(--teal-tint);color:var(--teal-dark);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;flex-shrink:0;
}
.sidebar-user .who{flex:1;min-width:0;}
.sidebar-user .who .n{color:#fff;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sidebar-user .who .r{font-size:11px;color:#8B98A5;text-transform:capitalize;}
.sidebar-user a.logout{color:#8B98A5;font-size:12px;}

.main{
  margin-left:var(--sidebar-w);
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
}

.topbar{
  display:flex;align-items:center;gap:14px;
  padding:14px 24px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.hamburger{
  display:none;
  width:36px;height:36px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;
}
.topbar h1{font-size:18px;}
.topbar .crumb{font-size:12.5px;color:var(--ink-soft);}
.topbar-spacer{flex:1;}
.btn-new-ticket{margin-left:auto;}

.content{padding:22px 24px 60px;flex:1;}

.overlay{
  display:none;position:fixed;inset:0;background:rgba(20,26,33,.45);z-index:35;
}
.overlay.show{display:block;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 14px;border-radius:var(--radius-sm);
  font-size:13.5px;font-weight:600;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  cursor:pointer;transition:.15s;text-decoration:none;line-height:1.2;
}
.btn:hover{border-color:#C7CCD2;text-decoration:none;background:#FBFBFC;}
.btn-primary{background:var(--teal);border-color:var(--teal);color:#fff;}
.btn-primary:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;}
.btn-danger{background:var(--signal);border-color:var(--signal);color:#fff;}
.btn-danger:hover{background:#a3401f;border-color:#a3401f;color:#fff;}
.btn-ghost{background:transparent;border-color:transparent;}
.btn-ghost:hover{background:var(--gray-tint);}
.btn-sm{padding:5px 10px;font-size:12.5px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;cursor:not-allowed;}

/* ---------- Cards / surfaces ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
}
.card-pad{padding:18px 20px;}
.card-header{
  padding:16px 20px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.card-header h2,.card-header h3{font-size:15px;}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px;}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 18px;position:relative;overflow:hidden;
}
.stat-card .num{font-family:'Space Grotesk',sans-serif;font-size:26px;font-weight:700;}
.stat-card .lbl{font-size:12px;color:var(--ink-soft);margin-top:2px;}
.stat-card .bar{position:absolute;left:0;top:0;bottom:0;width:4px;}
.stat-card.c-open .bar{background:var(--blue);}
.stat-card.c-progress .bar{background:var(--amber);}
.stat-card.c-overdue .bar{background:var(--signal);}
.stat-card.c-resolved .bar{background:var(--green);}

/* ---------- Badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:600;
  white-space:nowrap;
}
.badge .dot{width:6px;height:6px;border-radius:50%;}
.badge-low{background:var(--gray-tint);color:#5B6470;}
.badge-low .dot{background:#8A94A0;}
.badge-medium{background:var(--blue-tint);color:var(--blue);}
.badge-medium .dot{background:var(--blue);}
.badge-high{background:var(--amber-tint);color:var(--amber);}
.badge-high .dot{background:var(--amber);}
.badge-critical{background:var(--signal-tint);color:var(--signal);}
.badge-critical .dot{background:var(--signal);}

.badge-open{background:var(--blue-tint);color:var(--blue);}
.badge-open .dot{background:var(--blue);}
.badge-progress{background:var(--amber-tint);color:var(--amber);}
.badge-progress .dot{background:var(--amber);}
.badge-hold{background:var(--gray-tint);color:#5B6470;}
.badge-hold .dot{background:#8A94A0;}
.badge-resolved{background:var(--green-tint);color:var(--green);}
.badge-resolved .dot{background:var(--green);}
.badge-closed{background:var(--gray-tint);color:#5B6470;}
.badge-closed .dot{background:#5B6470;}

.tag-overdue{
  display:inline-flex;align-items:center;gap:4px;
  color:var(--signal);font-size:11.5px;font-weight:700;
}

/* ---------- SLA bar (signature element) ---------- */
.sla{display:flex;flex-direction:column;gap:4px;min-width:110px;}
.sla-track{height:5px;border-radius:3px;background:var(--line-soft);overflow:hidden;}
.sla-fill{height:100%;border-radius:3px;background:var(--teal);}
.sla-fill.warn{background:var(--amber);}
.sla-fill.breach{background:var(--signal);}
.sla-label{font-size:10.5px;color:var(--ink-soft);font-family:'IBM Plex Mono',monospace;}
.sla-label.breach{color:var(--signal);font-weight:600;}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);}
table{width:100%;border-collapse:collapse;font-size:13.5px;}
thead th{
  text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--ink-soft);font-weight:600;padding:10px 14px;border-bottom:1px solid var(--line);
  background:#FBFBFC;white-space:nowrap;
}
tbody td{padding:12px 14px;border-bottom:1px solid var(--line-soft);vertical-align:middle;}
tbody tr:last-child td{border-bottom:none;}
tbody tr.row-link{cursor:pointer;}
tbody tr.row-link:hover{background:#FAFBFC;}
.tk-num{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--ink-soft);}
.tk-subject{font-weight:600;color:var(--ink);}
.cell-muted{color:var(--ink-soft);font-size:12.5px;}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-grid.full{grid-template-columns:1fr;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-soft);margin-bottom:6px;}
.field .hint{font-size:11.5px;color:#8B98A5;margin-top:4px;}
input[type=text],input[type=email],input[type=password],input[type=tel],
input[type=number],input[type=date],input[type=datetime-local],
select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);color:var(--ink);
}
input:focus,select:focus,textarea:focus{border-color:var(--teal);outline:none;box-shadow:0 0 0 3px var(--teal-tint);}
textarea{resize:vertical;min-height:90px;}
.checkbox-row{display:flex;align-items:center;gap:8px;}
.checkbox-row input{width:auto;}

/* ---------- Alerts / flashes ---------- */
.flash{padding:11px 16px;border-radius:var(--radius-sm);font-size:13.5px;margin-bottom:14px;display:flex;gap:10px;align-items:flex-start;}
.flash-success{background:var(--green-tint);color:var(--green);}
.flash-error{background:var(--signal-tint);color:var(--signal);}
.flash-info{background:var(--blue-tint);color:var(--blue);}

/* ---------- Empty states ---------- */
.empty{text-align:center;padding:50px 20px;color:var(--ink-soft);}
.empty h3{color:var(--ink);margin-bottom:6px;}
.empty p{max-width:360px;margin:0 auto 16px;font-size:13.5px;}

/* ---------- Timeline (ticket view) ---------- */
.timeline{display:flex;flex-direction:column;gap:2px;}
.tl-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line-soft);}
.tl-item:last-child{border-bottom:none;}
.tl-item.internal{background:var(--amber-tint);margin:0 -20px;padding:14px 20px;border-radius:var(--radius-sm);}
.tl-avatar{width:30px;height:30px;border-radius:50%;background:var(--teal-tint);color:var(--teal-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0;}
.tl-body{flex:1;min-width:0;}
.tl-meta{font-size:12px;color:var(--ink-soft);margin-bottom:3px;}
.tl-meta strong{color:var(--ink);}
.tl-text{font-size:13.5px;white-space:pre-wrap;word-wrap:break-word;}
.tl-note-flag{font-size:10.5px;font-weight:700;color:var(--amber);text-transform:uppercase;letter-spacing:.04em;margin-left:6px;}
.tl-attachments{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px;}
.tl-attach{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;
  padding:4px 9px;background:var(--gray-tint);border-radius:20px;color:var(--ink-soft);
}

/* ---------- Ticket meta panel ---------- */
.meta-panel .mp-row{padding:12px 0;border-bottom:1px solid var(--line-soft);}
.meta-panel .mp-row:last-child{border-bottom:none;}
.meta-panel label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin-bottom:6px;font-weight:600;}

.two-col{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start;}

/* ---------- Filter bar ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px;align-items:center;}
.filter-bar select,.filter-bar input[type=text]{width:auto;min-width:140px;}
.search-box{position:relative;flex:1;min-width:200px;}
.search-box input{padding-left:34px;}
.search-box svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:#8B98A5;}

/* ---------- Pagination ---------- */
.pagination{display:flex;gap:6px;justify-content:center;margin-top:20px;}
.pagination a,.pagination span{
  min-width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);font-size:12.5px;color:var(--ink);
}
.pagination a:hover{background:var(--gray-tint);text-decoration:none;}
.pagination .current{background:var(--teal);border-color:var(--teal);color:#fff;}

/* ---------- Login / install ---------- */
.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--paper);padding:20px;}
.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:32px;}
.auth-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px;}
.auth-brand .mark{width:34px;height:34px;border-radius:8px;background:var(--teal);display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;font-weight:700;color:#fff;}
.auth-brand .name{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:17px;}
.install-steps{display:flex;gap:6px;margin-bottom:20px;}
.install-steps .step{flex:1;height:4px;border-radius:2px;background:var(--line);}
.install-steps .step.done{background:var(--teal);}

/* ---------- FAB (mobile) ---------- */
.fab{
  display:none;position:fixed;bottom:22px;right:20px;z-index:45;
  width:54px;height:54px;border-radius:50%;background:var(--teal);color:#fff;
  align-items:center;justify-content:center;box-shadow:var(--shadow-md);border:none;
}
.fab svg{width:24px;height:24px;}

/* ---------- Misc ---------- */
.divider{height:1px;background:var(--line);margin:18px 0;}
.text-muted{color:var(--ink-soft);}
.small{font-size:12px;}
.section-title{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);margin-bottom:10px;}
.pill-list{display:flex;flex-wrap:wrap;gap:8px;}

/* =========================================================
   Responsive — mobile-first breakpoints
   ========================================================= */
@media (max-width: 900px){
  .sidebar{transform:translateX(-100%);width:260px;}
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;}
  .hamburger{display:flex;}
  .content{padding:16px 14px 90px;}
  .topbar{padding:12px 14px;}
  .two-col{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .btn-new-ticket span.txt{display:none;}
  .fab{display:flex;}
  table thead{display:none;}
  table, tbody, tr, td{display:block;width:100%;}
  tbody tr{border-bottom:8px solid var(--paper);padding:10px 14px;background:var(--surface);border-radius:var(--radius-sm);margin-bottom:0;}
  tbody td{border-bottom:none;padding:4px 0;display:flex;justify-content:space-between;gap:10px;align-items:center;}
  tbody td::before{content:attr(data-label);font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);font-weight:600;}
  tbody td.tk-subject-cell{display:block;}
  tbody td.tk-subject-cell::before{display:none;}
  .table-wrap{border-radius:0;}
}

@media (max-width: 520px){
  .stat-grid{grid-template-columns:1fr 1fr;}
  .auth-card{padding:24px;}
}

@media print{
  .sidebar,.topbar,.fab,.filter-bar,.btn{display:none !important;}
  .main{margin-left:0;}
  body{background:#fff;}
}