:root {
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --secondary: #06B6D4;
  --accent: #F43F5E;
  
  /* Dark Theme Default */
  --bg-main: #0F172A;
  --bg-card: #1E293B;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  
  --border-color: rgba(255,255,255,0.05);
  --border-color-strong: rgba(255,255,255,0.1);
  --shadow-color: rgba(0,0,0,0.3);
  --shadow-color-strong: rgba(0,0,0,0.5);
  --card-hover-bg: rgba(255,255,255,0.08);
  --card-bg-subtle: rgba(255,255,255,0.03);
  --header-bg: linear-gradient(135deg, rgba(30,41,59,0.8) 0%, rgba(15,23,42,0.9) 100%);
  --measures-bg: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-main) 100%);
}

:root[data-theme="light"] {
  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-main: #0F172A;
  --text-muted: #475569;
  
  --border-color: rgba(0,0,0,0.05);
  --border-color-strong: rgba(0,0,0,0.1);
  --shadow-color: rgba(0,0,0,0.05);
  --shadow-color-strong: rgba(0,0,0,0.1);
  --card-hover-bg: rgba(0,0,0,0.04);
  --card-bg-subtle: #F1F5F9;
  --header-bg: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(248,250,252,0.95) 100%);
  --measures-bg: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-main) 100%);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

header {
  position: relative;
  background: var(--header-bg);
  padding: 4rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color-strong);
  box-shadow: 0 10px 30px var(--shadow-color-strong);
  backdrop-filter: blur(10px);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.theme-toggle {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  font-family: 'Inter', sans-serif;
}

.theme-toggle:hover {
  background: var(--card-hover-bg);
  border-color: var(--border-color-strong);
}

h1 {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--secondary), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

p.subtitle {
  color: var(--text-muted);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 4px 6px var(--shadow-color);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px var(--shadow-color-strong);
  border-color: var(--border-color-strong);
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-color-strong);
  padding-bottom: 0.5rem;
}

.stat-number {
  font-size: 4rem;
  font-weight: 900;
  color: var(--secondary);
  text-align: center;
  margin: 1rem 0;
  text-shadow: 0 0 20px rgba(6,182,212,0.4);
}

.measures-section {
  background: var(--measures-bg);
  border-radius: 20px;
  padding: 3rem;
  border: 1px solid var(--border-color);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.measures-section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--text-main);
  text-align: center;
}

.measure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.measure-card {
  background: var(--card-bg-subtle);
  padding: 1.5rem;
  border-radius: 15px;
  border-left: 4px solid var(--primary);
  transition: all 0.3s ease;
}

.measure-card:hover {
  background: var(--card-hover-bg);
  border-left-color: var(--accent);
}

.measure-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--secondary);
}

.measure-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

canvas {
  width: 100% !important;
  max-height: 300px;
}