:root {
  --orange: #ff7a00;
  --dark-bg: #0e0e0e;
  --card-bg: #1a1a1a;
  --text-light: #ccc;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(180deg, #1c1c1c 0%, #000 100%);
  color: #fff;
  padding: 1rem;
  overflow-x: hidden;
  min-height: 100vh;
}

.container { max-width: 1000px; margin: 0 auto; }

.logo { font-size: 2.8rem; font-weight: bold; text-align: center; margin: 2rem 0 1rem; letter-spacing: 1px; animation: glitch 2s infinite; }
.logo a { color: #fff; text-decoration: none; }
.logo a:hover { text-decoration: underline; }

@keyframes glitch {
  0% { text-shadow: 1px 1px var(--orange); }
  25% { text-shadow: -1px -1px var(--orange); }
  50% { text-shadow: 2px 0 var(--orange); }
  75% { text-shadow: -2px 1px var(--orange); }
  100% { text-shadow: 0 0 var(--orange); }
}

h1, h2 { color: var(--orange); text-align: center; }

.device-selector { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; margin-bottom: 2rem; }
.device-btn { background: #000; color: var(--orange); border: 1px solid var(--orange); padding: 1rem 1.5rem; border-radius: 18px; cursor: pointer; transition: all 0.3s ease; text-align: center; font-size: 1rem; font-weight: 500; display: flex; justify-content: center; align-items: center; gap: 0.6rem; }
.device-btn:hover, .device-btn.active { background-color: #1c1c1c; color: #fff; box-shadow: 0 0 8px rgba(255, 122, 0, 0.4); }
.device-btn i { font-size: 1.2rem; }

/* Локальные SVG-иконки */
.icon { width: 1.2rem; height: 1.2rem; fill: currentColor; display: inline-block; }

.manual-section { display: none; flex-direction: column; gap: 2rem; animation: fadeIn 0.4s ease; }
.manual-container { background: var(--card-bg); padding: 1.2rem 1.5rem; border-radius: 14px; box-shadow: 0 0 10px rgba(255, 122, 0, 0.15); animation: stepIn 0.5s ease forwards; }
.manual-container h2 { margin-top: 0; color: var(--orange); }
.manual-container p a { color: var(--orange); text-decoration: underline; }

@keyframes stepIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.enter-btn { display: block; margin: 1.5rem auto 0.5rem; padding: 1rem 2.5rem; background-color: var(--orange); color: #000; font-weight: bold; border: none; border-radius: 14px; font-size: 1.2rem; cursor: pointer; transition: 0.3s ease; text-align: center; text-decoration: none; width: fit-content; }
.enter-btn:hover { background-color: #ffa64d; }

.back-btn { display: block; margin: 0.5rem auto 2rem; font-size: 0.9rem; color: #fff; text-align: center; cursor: pointer; text-decoration: underline; }

#toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: #222; color: #fff; padding: 10px 20px; border-radius: 8px; opacity: 0; transition: opacity 0.3s; }