:root {
  --bg: #0f1724;
  --card: #0b1220;
  --accent: #0b70ff;
  --muted: #94a3b8;
  --glass: rgba(255,255,255,0.03);
  --text: #e6eef8;
  --error: #ff4d4d;
}
[data-theme="light"] {
  --bg: #f0f4f8;
  --card: #ffffff;
  --accent: #0066cc;
  --muted: #6b7280;
  --glass: rgba(0,0,0,0.05);
  --text: #1f2937;
}
* { box-sizing: border-box; }
body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  margin: 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
  color: var(--text);
  min-height: 100vh;
}
.navbar {
  background: var(--card);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass);
}
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.navbar-logo img {
  height: 82px;
  width: auto;
}
.navbar-links {
  display: flex;
  gap: 20px;
}
.navbar-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: transform 0.2s ease, color 0.2s ease;
}
.navbar-links a:hover, .navbar-links a.active {
  color: var(--accent);
  
}
.container {
  max-width: 1100px;
  margin: 28px auto;
  padding: 18px;
  animation: fadeIn 0.5s ease-in;
}
.header {
  margin-bottom: 14px;
}
h1 {
  margin: 0;
  font-size: 24px;
  text-align: center;
}
.header-subtitle {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  margin: 8px 0;
}
.header-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
}
.tabs {
  display: flex;
  gap: 8px;
  background: var(--glass);
  padding: 8px;
  border-radius: 10px;
}
.tab {
  padding: 10px 14px;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}
.tab.active {
  background: linear-gradient(90deg, rgb(11 112 255 / 35%), rgba(11, 112, 255, 0.06));
  color: var(--text);
  box-shadow: 0 6px 18px rgba(11,112,255,0.08);
}
.card {
  background: linear-gradient(180deg, var(--card) 0%, var(--card) 100%);
  border: 1px solid var(--glass);
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 20px;
}
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
  position: relative;
}
input[type=number], select {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--glass);
  background: transparent;
  color: var(--text);
  font-size: 14px;
}
input[type=number]:invalid, select:invalid {
  border-color: var(--error);
}
.error-text {
  color: var(--error);
  font-size: 12px;
  margin-top: 4px;
  display: none;
}
input:invalid + .error-text,
select:invalid + .error-text {
  display: block;
}
.risk-type-group {
  display: flex;
  gap: 8px;
}
.actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  justify-content: center;
}
button {
  padding: 14px 18px;
  border-radius: 8px;
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  min-width: 120px;
  touch-action: manipulation;
  transition: transform 0.2s ease;
}
button:hover {
  transform: scale(1.05);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text);
}
[data-theme="light"] .btn-ghost {
  background: rgba(0,0,0,0.05);
  border: 1px solid rgba(0,0,0,0.2);
  color: var(--text);
}
.result {
  margin-top: 12px;
  padding: 12px;
  border-radius: 10px;
  background: rgba(11,112,255,0.04);
  color: var(--text);
  text-align: center;
}
.stopwatch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 0;
}
.stopwatch-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
.time {
  font-size: 36px;
  font-weight: 700;
}
.history {
  max-height: 220px;
  overflow: auto;
  margin-top: 8px;
  border-top: 1px dashed var(--glass);
  padding-top: 8px;
}
.hist-item {
  padding: 8px;
  border-radius: 8px;
  background: var(--glass);
  margin-bottom: 8px;
}
#tv_chart_container {
  height: 480px;
}
.chart-note {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
.alerts {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.alert-input {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.theme-toggle {
  padding: 10px 14px;
  font-size: 15px;
}
.tooltip {
  position: absolute;
  right: 0;
  top: 0;
  cursor: help;
  font-size: 12px;
  background: var(--glass);
  padding: 2px 6px;
  border-radius: 4px;
}
.footer {
  background: var(--card);
  padding: 20px;
  text-align: center;
  border-top: 1px solid var(--glass);
  margin-top: 28px;
  animation: slideIn 0.5s ease-in;
}
.footer-content {
  max-width: 1100px;
  margin: 0 auto;
}
.footer a {
  color: var(--accent);
  text-decoration: none;
}
.footer a:hover {
  text-decoration: underline;
}
.social-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 10px 0;
}
.social-links a {
  color: var(--text);
  transition: transform 0.2s ease;
}
.social-links a:hover {
  transform: scale(1.2);
}
.disclaimer {
  font-size: 12px;
  color: var(--muted);
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 24px;
  cursor: pointer;
  padding: 10px;
}
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .actions { justify-content: center; }
}
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px;
  }
  .navbar-logo {
    justify-content: space-between;
    width: 100%;
  }
  .navbar-logo img {
    height: 50px;
  }
  .navbar-links {
    display: none;
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-top: 10px;
  }
  .navbar-links.active {
    display: flex;
	padding-left: 12px;

	}
  .navbar-toggle {
    display: block;
  }
  .header-controls {
    flex-direction: column;
    align-items: center;
  }
  .tabs {
    flex-direction: column;
    width: 100%;
    align-items: stretch;
  }
  .tab {
    width: 100%;
    text-align: center;
  }
  h1 {
    font-size: 16px;
  }
  .container {
    padding: 12px;
    margin: 20px auto;
  }
  .card {
    padding: 12px;
  }
  #tv_chart_container {
    height: 300px;
  }
  .time {
    font-size: 24px;
  }
  .alert-input {
    flex-direction: column;
    align-items: stretch;
  }
  .alert-input input,
  .alert-input button {
    width: 100%;
  }
}
@media (max-width: 480px) {
  .navbar-logo img {
    height: 40px;
  }
  .container {
    padding: 8px;
    margin: 10px auto;
  }
  h1 {
    font-size: 14px;
  }
  .header-subtitle {
    font-size: 10px;
  }
  .tab {
    font-size: 12px;
    padding: 8px;
  }
  button {
    font-size: 13px;
    padding: 10px;
    min-width: 80px;
  }
  input[type=number], select {
    font-size: 12px;
    padding: 8px;
  }
  label {
    font-size: 12px;
  }
  .time {
    font-size: 20px;
  }
  .footer {
    padding: 15px;
  }
  .social-links {
    gap: 10px;
  }
  .disclaimer {
    font-size: 10px;
  }
}