:root {
  --color-bg: #0f0f0f;
  --color-surface: #1a1a1a;
  --color-border: #2e2e2e;
  --color-text: #f0f0f0;
  --color-muted: #666;
  --color-accent: #7c6ff7;
  --color-accent-light: #2c57f3;
  --color-label: #809df4;
}

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

body {
  min-height: 100vh;
  background-color: var(--color-bg);
  font-family: 'Segoe UI', sans-serif;
  color: var(--color-text);
}

body.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background-color: var(--color-surface);
  padding: 2.5rem 2rem;
  border-radius: 8px;
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 600;
  text-align: center;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background-color: #111;
  color: var(--color-text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: var(--color-accent);
}

button[type='submit'] {
  padding: 0.75rem;
  border-radius: 6px;
  border: none;
  background-color: var(--color-accent);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

button[type='submit']:hover {
  background-color: var(--color-accent-light);
}

.error {
  color: #e05555;
  font-size: 0.85rem;
  text-align: center;
}

.hidden {
  display: none;
}

/* --- Profile page --- */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

header h1 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-accent-light);
}

header button {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background-color: transparent;
  color: var(--color-text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

header button:hover {
  background-color: var(--color-border);
}

main {
  margin: 5rem auto 2rem;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 900px;
  width: 100%;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

section {
  background-color: var(--color-surface);
  border-radius: 8px;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

section h2 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

section p {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.label {
  font-size: 0.75rem;
  color: var(--color-label);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.value {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-text);
}

svg {
  display: block;
  overflow: visible;
}

#graphs {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}