/* ── RESET ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── VARIABLES ── */
:root {
  --bg: #060810;
  --surface: #0d1020;
  --surface2: #131728;
  --border: #1a2040;
  --border2: #232c50;
  --accent: #4d9cf8;
  --accent2: #a78bfa;
  --warm: #ff7849;
  --text: #dde4f0;
  --muted: #4e5870;
  --muted2: #7d8aaa;
  --green: #4ade80;
  --yellow: #fbbf24;
}

html {
  scroll-behavior: smooth;
}

/* ── BASE BODY ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", sans-serif;
  line-height: 1.6;
}

/* ── NAV SHARED BASE ── */
nav {
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  border-bottom: 1px solid var(--border);
}

/* ── NAV LOGO ── */
.nav-logo {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

/* ── LANGUAGE TOGGLE ── */
.lang-toggle {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--muted2);
  font-family: "Inter", sans-serif;
  font-size: 12px;
  padding: 5px 13px;
  cursor: pointer;
  transition: all 0.15s;
}

.lang-btn.active {
  background: var(--border2);
  color: var(--text);
}