:root {
  --bg: #0f1a1c;
  --surface: #182324;
  --surface-raised: #1c2b2c;
  --border: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.45);
  --primary: #5bbdbd;
  --primary-dark: #4aa8a8;
  --primary-light: rgba(91, 189, 189, 0.12);
  --primary-soft: rgba(91, 189, 189, 0.07);
  --accent: #e85d6a;
  --accent-light: rgba(232, 93, 106, 0.12);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --border-subtle: rgba(255, 255, 255, 0.05);
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.25);
  --font-question: 24px;
  --font-help: 14px;
  --font-label: 12px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}
#topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 28px;
  background: #0a1719;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
#topbar h1 {
  font-size: 18px;
  font-weight: 600;
  color: #8dd0d0;
  white-space: nowrap;
  letter-spacing: -0.2px;
}
#topbar h1.topbar-home {
  cursor: pointer;
  transition: color 0.2s;
}
#topbar h1.topbar-home:hover {
  color: #fff;
}
.hamburger-btn {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
  font-size: 18px;
  line-height: 1;
  padding: 7px 11px;
  border-radius: 8px;
  cursor: pointer;
  flex-shrink: 0;
}
.hamburger-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}
#topbar .client-badge {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  flex: 1;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s;
}
#topbar .client-badge:hover {
  color: rgba(255, 255, 255, 0.8);
}
#topbar .actions {
  display: flex;
  gap: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  white-space: nowrap;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: var(--primary);
  color: #0d1515;
  border-color: var(--primary);
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}
.btn-primary:active {
  background: #3d9d9d;
}
.btn-sm {
  padding: 6px 15px;
  font-size: 13px;
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: rgba(255, 255, 255, 0.5);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.8);
  border-color: transparent;
}
#main {
  display: flex;
  flex: 1;
  overflow: hidden;
}
#sidebar {
  width: 300px;
  min-width: 300px;
  background: #0c181a;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid rgba(255, 255, 255, 0.04);
}
#content {
  flex: 1;
  overflow-y: auto;
  padding: 32px 40px;
  background: var(--bg);
}
#content::-webkit-scrollbar {
  width: 6px;
}
#content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
.progress-bar {
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 20px;
}
.progress-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--success));
  border-radius: 4px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.progress-bar .fill.done {
  background: var(--success);
}
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
  backdrop-filter: blur(4px);
}
.modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}
.modal {
  background: var(--surface-raised);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 28px;
  max-width: 480px;
  width: 90%;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  transform: scale(0.95) translateY(10px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.modal-overlay.show .modal {
  transform: scale(1) translateY(0);
}
.modal h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}
.modal .actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 24px;
}
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #1f2a2a;
  color: rgba(255, 255, 255, 0.9);
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  z-index: 2000;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.toast.show {
  opacity: 1;
  transform: translateY(0) scale(1);
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@media (max-width: 900px) {
  #sidebar {
    width: 260px;
    min-width: 260px;
  }
  #content {
    padding: 24px 20px;
  }
}
@media (max-width: 768px) {
  .hamburger-btn {
    display: inline-flex;
  }
  #topbar {
    padding: 10px 16px;
    gap: 10px;
  }
  #topbar h1 {
    font-size: 15px;
  }
  #main {
    position: relative;
  }
  #sidebar {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 400;
    width: 100%;
    min-width: 0;
    max-height: min(70vh, 480px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  #sidebar.sidebar-open {
    display: flex;
  }
  #content {
    padding: 20px 16px 88px;
  }
}