@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, "Lucida Console", "Courier New", monospace;
  background-color: #f2f3f7;
  color: #303d3a;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
nav {
  background-color: #303d3a;
}

nav a {
  color: #f2f3f7;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: opacity 0.15s;
}

nav a:hover {
  opacity: 0.6;
}

nav a.active {
  font-weight: 600;
}

/* ── Cards / Panels ── */
.card {
  background: #f2f3f7;
  border-radius: 20px;
  border: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

/* ── Buttons ── */
.btn-primary {
  background: #303d3a;
  color: #f2f3f7;
  border-radius: 20px;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.75rem 2rem;
  transition: opacity 0.15s;
  display: inline-block;
}

.btn-primary:hover {
  opacity: 0.75;
}

.btn-outline {
  background: transparent;
  color: #303d3a;
  border: 1.5px solid #000000;
  border-radius: 22px;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.75rem 2rem;
  transition: all 0.15s;
  display: inline-block;
}

.btn-outline:hover {
  background: #303d3a;
  color: #f2f3f7;
}

/* ── Inputs ── */
input[type="text"],
input[type="email"],
input[type="number"],
select,
textarea {
  background: #f2f3f7;
  border: 1.5px solid #e0e1e6;
  border-radius: 12px;
  color: #000;
  font-family: inherit;
  transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: #303d3a;
}

input[type="range"] {
  accent-color: #303d3a;
  cursor: pointer;
}

/* ── Section label ── */
.label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #888;
}

/* ── Accent color for results ── */
.accent {
  color: #000;
}