:root {
  --bg: #0b0f1a;
  --card: #121829;
  --text: #ffffff;
  --accent: #4db8ff;
  --muted: #bfc7d9;
}

body.light {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #111111;
  --accent: #4db8ff;
  --muted: #5f6b85;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.3s, color 0.3s;
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 30px;
  background: var(--card);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.logo h1 {
  margin: 0;
  font-size: 24px;
  color: var(--text);
}

/* NAV */
.nav {
  display: flex;
  gap: 20px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  opacity: 0.75;
  transition: 0.2s;
}

.nav a:hover {
  opacity: 1;
}

/* THEME BUTTON */
#themeToggle {
  background: none;
  border: none;
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
}

/* HERO */
.hero {
  text-align: center;
  padding: 120px 20px;
}

.hero h2 {
  font-size: 60px;
  margin-bottom: 10px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 25px;
}

/* BUTTONS */
.buttons {
  margin-top: 20px;
}

.btn {
  padding: 12px 20px;
  border-radius: 10px;
  margin: 5px;
  display: inline-block;
  text-decoration: none;
  transition: 0.2s;
  font-weight: bold;
}

.btn:hover {
  transform: translateY(-2px);
}

.primary {
  background: var(--accent);
  color: black;
}

.secondary {
  border: 1px solid var(--accent);
  color: var(--text);
}

/* SECTIONS */
.features,
.download,
.socials {
  padding: 60px 20px;
  text-align: center;
}

.features h2,
.download h2,
.socials h2,
.support-page h2 {
  margin-bottom: 15px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.card {
  background: var(--card);
  padding: 20px;
  border-radius: 10px;
}

/* DOWNLOAD */
.big {
  font-size: 18px;
}

/* SOCIALS */
.social-grid {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.social {
  padding: 10px 15px;
  background: var(--card);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transition: 0.2s;
}

.social:hover {
  transform: translateY(-2px);
}

/* SUPPORT PAGE */
.support-page {
  text-align: center;
  padding: 100px 20px;
}

.support-subtext {
  color: var(--muted);
  margin-bottom: 30px;
}

.support-box {
  max-width: 420px;
  margin: 0 auto;
  background: var(--card);
  padding: 30px;
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.support-btn {
  padding: 15px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
  display: block;
  transition: 0.2s;
}

.support-btn:hover {
  transform: translateY(-2px);
}

.telegram {
  background: #2AABEE;
  color: white;
}

.mail {
  background: #444;
  color: white;
}

body.light .mail {
  background: #e7e7e7;
  color: #111;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  opacity: 0.6;
  color: var(--text);
}

/* MOBILE */
@media (max-width: 768px) {
  .header {
    flex-wrap: wrap;
    gap: 15px;
    padding: 15px 20px;
  }

  .nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero h2 {
    font-size: 42px;
  }

  .logo h1 {
    font-size: 22px;
  }
}
.download {
  text-align: center;
  padding: 60px 20px;
}

.download h2 {
  font-size: 32px;
  margin-bottom: 10px;
}

.download p {
  color: var(--muted);
  margin-bottom: 30px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 25px;
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  text-decoration: none;
  font-size: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: 0.3s;
}

.download-btn img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.download-btn:hover {
  transform: translateY(-4px);
}
.donate-page {
  min-height: calc(100vh - 80px);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
}

.donate-box {
  max-width: 600px;
  width: 100%;
  background: #121829;
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.donate-box h2 {
  margin-bottom: 10px;
}

.donate-text {
  opacity: 0.7;
  margin-bottom: 25px;
  line-height: 1.5;
}

/* QR */
.qr-box {
  margin-bottom: 25px;
}

.qr-box img {
  width: 180px;
  border-radius: 12px;
  background: white;
  padding: 10px;
}

.qr-box p {
  margin-top: 10px;
  font-size: 14px;
  opacity: 0.7;
}

/* КАРТА */
.donate-card {
  background: #0b0f1a;
  padding: 20px;
  border-radius: 15px;
  margin-bottom: 20px;
}

.label {
  font-size: 14px;
  opacity: 0.6;
}

.number {
  font-size: 26px;
  font-weight: bold;
  letter-spacing: 2px;
  margin: 10px 0;
}

.owner {
  opacity: 0.8;
}

/* КНОПКА */
.copy-btn {
  padding: 12px 20px;
  background: #4db8ff;
  border: none;
  border-radius: 10px;
  font-weight: bold;
  cursor: pointer;
  color: black;
}

.copy-btn:hover {
  transform: translateY(-2px);
}

.copy-text {
  margin-top: 10px;
  font-size: 14px;
  color: #4db8ff;
}
.btn.donate {
  background: linear-gradient(135deg, #4db8ff, #7a5cff);
  color: black;
  font-weight: bold;
}

.btn.donate:hover {
  transform: translateY(-2px);
}
.btn {
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
  display: inline-block;
}

.btn.outline {
  background: transparent;
  color: white;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  transition: 0.2s;
}

.btn.outline:hover {
  border-color: #4db8ff;
  color: #4db8ff;
  background: rgba(77, 184, 255, 0.08);
}