:root {
  --bg: #0e0f11;
  --surface: #16181c;
  --surface2: #1e2127;
  --border: #2a2d35;
  --text: #e8eaf0;
  --text-muted: #6b7280;
  --accent: #3b82f6;
  --accent-glow: rgba(59,130,246,0.15);
  --green: #22c55e;
  --yellow: #f59e0b;
  --red: #ef4444;
  --orange: #f97316;
  --radius: 8px;
  --font: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}

/* SCREENS */
.screen { display: none; }
.screen.active { display: flex; }

/* LOGIN */
#login-screen {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(34,197,94,0.05) 0%, transparent 50%),
              var(--bg);
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 380px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.brand-icon {
  font-size: 28px;
  color: var(--accent);
  line-height: 1;
}
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: 0.02em; }
.brand-sub { font-size: 12px; color: var(--text-muted); font-family: var(--mono); }
.login-hint { font-size: 11px; color: var(--text-muted); text-align: center; margin-top: 16px; font-family: var(--mono); }
.error-msg { color: var(--red); font-size: 12px; margin-bottom: 8px; min-height: 16px; }

/* APP LAYOUT */
#app-screen { min-height: 100vh; }

/* SIDEBAR */
.sidebar {
  width: 220px;
  min-height: 100vh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
  flex-shrink: 0;
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px 16px;
  font-weight: 600;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.sidebar-nav { flex: 1; padding: 12px 0; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13.5px;
  text-decoration: none;
  transition: all 0.15s;
  border-left: 3px solid transparent;
  position: relative;
}
.nav-item:hover { color: var(--text); background: var(--surface2); }
.nav-item.active { color: var(--accent); background: var(--accent-glow); border-left-color: var(--accent); }
.nav-icon { font-size: 13px; width: 16px; text-align: center; }
.badge {
  margin-left: auto;
  background: var(--accent);
  color: white;
  font-size: 10px;
  font-weight: 600;
  border-radius: 10px;
  padding: 1px 6px;
  font-family: var(--mono);
}
.badge:empty { display: none; }
.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-chip { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.user-avatar {
  width: 32px; height: 32px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 13px; flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-muted); font-family: var(--mono); }
.btn-logout {
  background: none; border: 1px solid var(--border); color: var(--text-muted);
  border-radius: 6px; padding: 6px 8px; cursor: pointer; font-size: 14px;
  transition: all 0.15s;
}
.btn-logout:hover { color: var(--red); border-color: var(--red); }

/* MAIN */
.main-content { flex: 1; overflow-y: auto; background: var(--bg); }
.view { display: none; padding: 28px 32px; }
.view.active { display: block; }
.view-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 24px; flex-wrap: wrap;
}
.view-header h1 { font-size: 22px; font-weight: 600; flex: 1; }
.date-label { font-size: 12px; color: var(--text-muted); font-family: var(--mono); }
.header-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* STATS */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  border-top: 3px solid;
}
.accent-blue { border-top-color: var(--accent); }
.accent-yellow { border-top-color: var(--yellow); }
.accent-red { border-top-color: var(--red); }
.accent-green { border-top-color: var(--green); }
.stat-value { font-size: 32px; font-weight: 600; font-family: var(--mono); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.05em; }

/* SECTION TITLE */
.section-title { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 12px; }

/* TICKET CARDS */
.ticket-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.15s;
}
.ticket-card:hover { border-color: var(--accent); background: var(--surface2); }
.ticket-id { font-family: var(--mono); font-size: 11px; color: var(--text-muted); min-width: 48px; }
.ticket-subject { flex: 1; font-size: 13.5px; font-weight: 500; }
.ticket-meta { font-size: 11px; color: var(--text-muted); }
.ticket-assignee { font-size: 12px; color: var(--text-muted); min-width: 80px; text-align: right; }

/* BADGES */
.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--mono);
  white-space: nowrap;
}
.pill-open { background: rgba(59,130,246,0.15); color: #60a5fa; }
.pill-inprogress { background: rgba(245,158,11,0.15); color: #fbbf24; }
.pill-resolved { background: rgba(34,197,94,0.15); color: #4ade80; }
.pill-closed { background: rgba(107,114,128,0.2); color: #9ca3af; }
.pill-critical { background: rgba(239,68,68,0.15); color: #f87171; }
.pill-high { background: rgba(249,115,22,0.15); color: #fb923c; }
.pill-medium { background: rgba(245,158,11,0.15); color: #fbbf24; }
.pill-low { background: rgba(107,114,128,0.2); color: #9ca3af; }

/* FORMS */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  max-width: 720px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label { font-size: 12px; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.form-group input, .form-group textarea, .form-group select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; }
.form-group select option { background: var(--surface); }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }

/* INPUTS */
.select-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  cursor: pointer;
}
.select-input option { background: var(--surface); }
.search-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  width: 180px;
}
.search-input:focus { border-color: var(--accent); }
.full-width { width: 100%; }

/* BUTTONS */
.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.85; }
.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-back {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 7px 14px;
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-back:hover { color: var(--text); border-color: var(--text-muted); }

/* DETAIL */
.detail-grid { display: grid; grid-template-columns: 1fr 300px; gap: 20px; }
.detail-main { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.detail-sidebar { display: flex; flex-direction: column; gap: 14px; }
.detail-meta-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.detail-meta-card h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-muted); margin-bottom: 14px; }
.meta-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 13px; }
.meta-label { color: var(--text-muted); }
.detail-description { font-size: 14px; line-height: 1.65; white-space: pre-wrap; color: var(--text); }
.detail-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* REPLIES */
.reply-list { margin-bottom: 16px; }
.reply-item { padding: 12px 0; border-bottom: 1px solid var(--border); }
.reply-item:last-child { border-bottom: none; }
.reply-header { display: flex; justify-content: space-between; margin-bottom: 6px; }
.reply-author { font-size: 12px; font-weight: 600; }
.reply-time { font-size: 11px; color: var(--text-muted); font-family: var(--mono); }
.reply-body { font-size: 13px; line-height: 1.6; color: var(--text-muted); }
.reply-form textarea { width: 100%; margin-bottom: 10px; }

/* REPORTS */
.report-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.report-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.report-card h3 { font-size: 13px; font-weight: 600; margin-bottom: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.report-row { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.report-row:last-child { border-bottom: none; }
.report-val { font-family: var(--mono); font-weight: 600; }

/* EMPTY STATE */
.empty-state { text-align: center; padding: 48px; color: var(--text-muted); font-size: 14px; }
.empty-state .empty-icon { font-size: 36px; margin-bottom: 12px; opacity: 0.4; }

/* TOAST */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--surface2);
  border: 1px solid var(--green);
  color: var(--green);
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
  font-family: var(--mono);
  z-index: 9999;
  animation: slideUp 0.2s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}