:root,
[data-theme='dark'] {
  --color-bg: #171614;
  --color-surface: #1c1b19;
  --color-surface-2: #201f1d;
  --color-surface-3: #252321;
  --color-surface-offset: #1d1c1a;
  --color-divider: #262523;
  --color-border: #393836;
  --color-border-light: #2e2d2b;
  --color-text: #cdccca;
  --color-text-muted: #797876;
  --color-text-faint: #5a5957;
  --color-text-inverse: #2b2a28;
  --color-primary: #4f98a3;
  --color-primary-hover: #227f8b;
  --color-primary-bg: rgba(79, 152, 163, 0.12);
  --color-primary-highlight: #313b3b;
  --color-success: #6daa45;
  --color-success-bg: rgba(109, 170, 69, 0.12);
  --color-warning: #bb653b;
  --color-warning-bg: rgba(187, 101, 59, 0.12);
  --color-danger: #dd6974;
  --color-danger-bg: rgba(221, 105, 116, 0.12);
  --font-display: 'General Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Helvetica Neue', sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  overflow: hidden;
}
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
ul, ol { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
a, button { cursor: pointer; transition: all 180ms cubic-bezier(0.16, 1, 0.3, 1); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: var(--radius-sm); }
::selection { background: var(--color-primary-bg); color: var(--color-text); }

/* Demo Badge */
.demo-badge {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--color-warning-bg);
  color: var(--color-warning);
  font-size: 11px; font-weight: 600;
  text-align: center; padding: 6px 16px;
  border-bottom: 1px solid var(--color-border-light);
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display);
}
.demo-badge__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-warning); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* App Layout */
.app { display: flex; height: 100vh; padding-top: 30px; }

/* Sidebar */
.sidebar {
  width: 240px; flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex; flex-direction: column;
  padding: 16px 0;
}
.sidebar__logo {
  display: flex; align-items: center; gap: 10px;
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--color-divider);
}
.sidebar__brand { font-family: var(--font-display); font-weight: 700; font-size: 17px; }
.sidebar__nav { flex: 1; padding: 12px 12px; display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: none; border: none;
  color: var(--color-text-muted);
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  text-align: left; width: 100%;
}
.nav-item:hover { background: var(--color-surface-2); color: var(--color-text); }
.nav-item.active { background: var(--color-primary-bg); color: var(--color-primary); font-weight: 600; }
.nav-item svg { flex-shrink: 0; }
.sidebar__footer { padding: 16px 20px; border-top: 1px solid var(--color-divider); }
.tech-status { display: flex; align-items: center; justify-content: space-between; }
.tech-status__title { font-size: 12px; color: var(--color-text-muted); }
.tech-status__count { font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--color-success); }

/* Main */
.main { flex: 1; overflow-y: auto; overflow-x: hidden; }

/* Views */
.view { display: none; padding: 28px 32px; }
.view--active { display: block; animation: fadeIn 300ms ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.view__header { margin-bottom: 24px; }
.view__title { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 6px; }
.view__subtitle { color: var(--color-text-muted); font-size: 15px; }

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card--highlight { background: var(--color-surface-2); border-color: var(--color-primary); border-width: 1px; }
.card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.card__icon { width: 40px; height: 40px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.card__icon--primary { background: var(--color-primary-bg); color: var(--color-primary); }
.card__icon--success { background: var(--color-success-bg); color: var(--color-success); }
.card__title { font-size: 17px; font-weight: 600; }

/* Request Layout */
.request-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.request-form-wrap { min-width: 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--color-text-muted); }
.form-field input, .form-field select, .form-field textarea {
  padding: 10px 14px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-text);
  transition: border-color 180ms;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-bg);
}
.form-field textarea { resize: vertical; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 600; font-size: 14px;
  border: none; cursor: pointer; white-space: nowrap;
}
.btn--primary { background: var(--color-primary); color: #f9f8f4; }
.btn--primary:hover { background: var(--color-primary-hover); }
.btn--full { width: 100%; padding: 12px 20px; }
.btn--sm { padding: 6px 12px; font-size: 12px; }

/* Steps */
.steps { display: flex; flex-direction: column; gap: 18px; }
.steps__item { display: flex; gap: 14px; align-items: flex-start; }
.steps__num {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--color-primary-bg); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 13px;
  flex-shrink: 0;
}
.steps__title { font-weight: 600; font-size: 14px; margin-bottom: 2px; }
.steps__desc { font-size: 13px; color: var(--color-text-muted); }

/* Dispatch Stats */
.dispatch-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 24px; }
.ds-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px 20px; }
.ds-card--accent { border-color: var(--color-primary); background: var(--color-primary-bg); }
.ds-card__value { font-family: var(--font-display); font-weight: 700; font-size: 28px; letter-spacing: -0.02em; }
.ds-card--accent .ds-card__value { color: var(--color-primary); }
.ds-card__label { font-size: 12px; color: var(--color-text-muted); margin-top: 2px; }

/* Kanban */
.kanban { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 16px; }
.kanban__col {
  min-width: 260px; flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  max-height: calc(100vh - 320px);
}
.kanban__col-header { display: flex; align-items: center; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--color-divider); }
.kanban__col-dot { width: 8px; height: 8px; border-radius: 50%; }
.kanban__col-dot--new { background: var(--color-primary); }
.kanban__col-dot--contacted { background: #d19900; }
.kanban__col-dot--scheduled { background: #5591c7; }
.kanban__col-dot--enroute { background: var(--color-warning); }
.kanban__col-dot--completed { background: var(--color-success); }
.kanban__col-title { font-weight: 600; font-size: 14px; flex: 1; }
.kanban__col-count { font-size: 12px; color: var(--color-text-muted); background: var(--color-surface-2); padding: 2px 8px; border-radius: var(--radius-full); }
.kanban__col-body { padding: 12px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; flex: 1; }

/* Job Card */
.job-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: all 180ms;
  animation: slideIn 300ms ease;
}
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.job-card:hover { border-color: var(--color-primary); }
.job-card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.job-card__name { font-weight: 600; font-size: 14px; }
.job-card__service { font-size: 12px; color: var(--color-text-muted); }
.job-card__badge {
  font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 3px 8px; border-radius: var(--radius-full); white-space: nowrap;
}
.badge--emergency { background: var(--color-danger-bg); color: var(--color-danger); }
.badge--urgent { background: var(--color-warning-bg); color: var(--color-warning); }
.badge--standard { background: var(--color-primary-bg); color: var(--color-primary); }
.job-card__detail { font-size: 12px; color: var(--color-text-muted); margin-bottom: 4px; display: flex; align-items: center; gap: 6px; }
.job-card__detail svg { width: 13px; height: 13px; flex-shrink: 0; }
.job-card__value { font-family: var(--font-display); font-weight: 600; font-size: 15px; color: var(--color-primary); margin: 8px 0 10px; }
.job-card__actions { display: flex; gap: 6px; }
.job-card__actions .btn { flex: 1; }
.job-card__tech { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; padding: 8px 10px; background: var(--color-surface-3); border-radius: var(--radius-sm); }
.tech-avatar { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.job-card__tech-name { font-size: 12px; font-weight: 500; }
.job-card__tech-status { font-size: 11px; color: var(--color-text-muted); margin-left: auto; }

/* Automation Timeline */
.automation-timeline { max-width: 800px; }
.timeline-item {
  display: flex; gap: 16px; padding: 16px 0;
  border-bottom: 1px solid var(--color-divider);
  animation: slideIn 300ms ease;
}
.timeline-item__icon {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.timeline-item__icon--sms { background: var(--color-primary-bg); color: var(--color-primary); }
.timeline-item__icon--email { background: var(--color-success-bg); color: var(--color-success); }
.timeline-item__icon--system { background: var(--color-surface-3); color: var(--color-text-muted); }
.timeline-item__icon svg { width: 16px; height: 16px; }
.timeline-item__content { flex: 1; min-width: 0; }
.timeline-item__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.timeline-item__type { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); }
.timeline-item__time { font-size: 12px; color: var(--color-text-faint); }
.timeline-item__message { font-size: 14px; color: var(--color-text); line-height: 1.5; }
.timeline-item__recipient { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }

/* Empty State */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state__title { font-size: 17px; font-weight: 600; margin-bottom: 6px; color: var(--color-text); }
.empty-state__desc { font-size: 14px; color: var(--color-text-muted); }

/* ROI Dashboard */
.roi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 32px; }
.roi-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 20px; }
.roi-card--accent { border-color: var(--color-primary); background: var(--color-primary-bg); }
.roi-card__icon { margin-bottom: 12px; color: var(--color-primary); }
.roi-card__value { font-family: var(--font-display); font-weight: 700; font-size: 32px; letter-spacing: -0.02em; color: var(--color-text); margin-bottom: 4px; }
.roi-card--accent .roi-card__value { color: var(--color-primary); }
.roi-card__label { font-size: 13px; font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.roi-card__sub { font-size: 12px; color: var(--color-text-muted); }

.roi-section { margin-bottom: 32px; }
.roi-section__title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }

/* Comparison */
.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.comparison-card { border-radius: var(--radius-lg); padding: 20px; }
.comparison-card--before { background: var(--color-surface); border: 1px solid var(--color-border); }
.comparison-card--after { background: var(--color-primary-bg); border: 1px solid var(--color-primary); }
.comparison-card__label { font-family: var(--font-display); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; color: var(--color-text-muted); }
.comparison-card--after .comparison-card__label { color: var(--color-primary); }
.comparison-card__items { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.comparison-item { display: flex; flex-direction: column; gap: 2px; }
.comparison-item__metric { font-family: var(--font-display); font-weight: 700; font-size: 24px; }
.comparison-item__metric--accent { color: var(--color-primary); }
.comparison-item__label { font-size: 12px; color: var(--color-text-muted); }

/* ROI Table */
.roi-table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.roi-table { width: 100%; border-collapse: collapse; }
.roi-table th, .roi-table td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--color-divider); }
.roi-table th { background: var(--color-surface-2); font-family: var(--font-display); font-weight: 600; font-size: 13px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.roi-table td { font-size: 14px; }
.roi-table td:nth-child(2), .roi-table td:nth-child(3), .roi-table td:nth-child(4) { text-align: right; font-family: var(--font-display); font-weight: 600; }
.roi-table tbody tr:last-child td { border-bottom: none; }
.roi-table tbody tr:hover { background: var(--color-surface-2); }

/* Toast */
.toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  font-size: 14px; font-weight: 500;
  box-shadow: var(--shadow-lg);
  transform: translateY(100px); opacity: 0;
  transition: all 300ms cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 360px;
  display: flex; align-items: center; gap: 10px;
}
.toast--visible { transform: translateY(0); opacity: 1; }
.toast__icon { color: var(--color-success); flex-shrink: 0; }

/* Responsive */
@media (max-width: 1024px) {
  .request-layout { grid-template-columns: 1fr; }
  .dispatch-stats { grid-template-columns: repeat(3, 1fr); }
  .roi-grid { grid-template-columns: repeat(2, 1fr); }
  .comparison-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar__brand, .sidebar__footer, .nav-item span { display: none; }
  .nav-item { justify-content: center; }
  .view { padding: 20px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .dispatch-stats { grid-template-columns: 1fr 1fr; }
  .roi-grid { grid-template-columns: 1fr; }
  .comparison-card__items { grid-template-columns: 1fr; }
}