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

html, body {
  height: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #07172f 0, #020514 45%, #000000 100%);
  color: #e4f4ff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* неоновые пятна и скан‑линии */
body::before,
body::after {
  content: "";
  position: fixed;
  inset: -20%;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background:
    radial-gradient(circle at 15% 15%, rgba(0, 255, 255, 0.18), transparent 55%),
    radial-gradient(circle at 90% 85%, rgba(0, 88, 255, 0.3), transparent 55%);
  filter: blur(6px);
}

body::after {
  background-image: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.07) 1px,
    transparent 1px
  );
  background-size: 100% 3px;
  mix-blend-mode: soft-light;
  opacity: 0.12;
}

/* универсальные переходы */
a, button, .mode-card, .nav-links a::after {
  transition: all 0.22s ease;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================
   КУРСОР-АУРА
========================= */
.cursor-glow {
  position: fixed;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(0, 255, 255, 0.22), transparent 60%);
  mix-blend-mode: screen;
  z-index: -1;
  opacity: 0;
}

/* =========================
   HEADER
========================= */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(0, 7, 24, 0.96), rgba(0, 7, 24, 0.78), transparent);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0, 255, 255, 0.16);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.nav-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: drop-shadow(0 0 12px rgba(0, 255, 255, 0.8));
  animation: eye-blink 6s infinite;
}

@keyframes eye-blink {
  0%, 8%, 100% { transform: scaleY(1); }
  4% { transform: scaleY(0.1); }
}

.nav-title {
  display: flex;
  flex-direction: column;
}

.nav-title span:first-child {
  font-weight: 800;
  letter-spacing: 0.16em;
  font-size: 14px;
}

.nav-title span:last-child {
  font-size: 11px;
  opacity: 0.8;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav-links a {
  position: relative;
  padding-bottom: 4px;
  color: #b9dfff;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #27f3ff, #4b8bff);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* =========================
   BUTTONS
========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid rgba(39, 243, 255, 0.5);
  background: radial-gradient(circle at 30% 0, #133a63, #020814 60%, #000000 100%);
  color: #e9fbff;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  gap: 8px;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(39, 243, 255, 0.55);
  border-color: #27f3ff;
}

.btn-primary {
  background: radial-gradient(circle at 30% 0, #32f4ff, #0052a7 55%, #001021 100%);
  box-shadow: 0 0 26px rgba(39, 243, 255, 0.8);
}

.btn-success {
  background: radial-gradient(circle at 30% 0, #46ff9b, #008c4a 55%, #001a1a 100%);
  box-shadow: 0 0 26px rgba(70, 255, 155, 0.9);
}

/* =========================
   HERO
========================= */
.hero {
  padding: 70px 0 55px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at 20% 0%, rgba(0, 255, 255, 0.22), transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.hero-kicker {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.23em;
  color: #6ae8ff;
  margin-bottom: 14px;
}

.hero-title {
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1.05;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 16px;
  text-shadow:
    0 0 12px rgba(0, 255, 255, 0.7),
    0 0 32px rgba(0, 132, 255, 0.9);
}

.hero-title span {
  display: block;
}

.hero-subtitle {
  font-size: 15px;
  max-width: 430px;
  color: #b8d9ff;
  margin-bottom: 22px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 11px;
  color: #8fbfff;
  margin-bottom: 22px;
}

.hero-meta span {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(13, 45, 86, 0.7);
  border: 1px solid rgba(64, 178, 255, 0.35);
}

.tagline {
  font-size: 13px;
  color: #97b3ff;
  max-width: 460px;
}

/* HERO баннер с 3D‑параллаксом */
.hero-banner {
  position: relative;
  perspective: 1200px;
}

.hero-banner-main {
  border-radius: 30px;
  overflow: hidden;
  border: 1px solid rgba(39, 243, 255, 0.4);
  box-shadow:
    0 0 55px rgba(39, 243, 255, 0.6),
    0 0 120px rgba(0, 0, 0, 0.9);
  transform-style: preserve-3d;
  background: #020614;
}

.hero-banner-main img {
  width: 100%;
  display: block;
}

/* =========================
   СЕКЦИИ
========================= */
section {
  padding: 36px 0;
}

.section-title {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: #6ae8ff;
  margin-bottom: 6px;
}

.section-heading {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
}

.section-description {
  font-size: 14px;
  color: #a9c7ff;
  max-width: 520px;
  margin-bottom: 22px;
}

/* карточки режимов */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.mode-card {
  padding: 16px 16px 18px;
  border-radius: 20px;
  background: radial-gradient(circle at top, rgba(19, 73, 121, 0.9) 0, rgba(3, 10, 26, 0.98) 40%, rgba(0, 0, 0, 0.98) 100%);
  border: 1px solid rgba(39, 243, 255, 0.3);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.mode-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 0 34px rgba(39, 243, 255, 0.55);
}

.mode-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 0, rgba(0, 255, 255, 0.12) 50%, transparent 100%);
  mix-blend-mode: soft-light;
  opacity: 0;
}

.mode-card:hover::after {
  opacity: 1;
}

.mode-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-bottom: 6px;
  color: #62e4ff;
}

.mode-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.mode-desc {
  font-size: 13px;
  color: #b9d4ff;
  margin-bottom: 8px;
}

.mode-meta {
  font-size: 11px;
  color: #88c8ff;
}

/* Маскот / RP‑мод блок */
.mascot-section {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.9fr);
  gap: 36px;
  align-items: center;
}

.mascot-img {
  max-width: 320px;
  margin: 0 auto;
  filter: drop-shadow(0 0 40px rgba(39, 243, 255, 0.8));
  animation: float-xy 7s ease-in-out infinite;
}

/* FAQ, списки */
.faq-list {
  margin-top: 10px;
  display: grid;
  gap: 14px;
}

.faq-item-title {
  font-weight: 600;
  font-size: 14px;
}

.faq-item-text {
  font-size: 13px;
  color: #b9d4ff;
}

.steps {
  margin-top: 18px;
}

.steps li {
  margin-bottom: 12px;
  font-size: 14px;
}

.steps strong {
  color: #72f6ff;
}

/* =========================
   FOOTER
========================= */
footer {
  border-top: 1px solid rgba(24, 72, 120, 0.7);
  padding: 16px 0 22px;
  font-size: 12px;
  color: #7f9bce;
  background: #020614;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 16px;
}

/* =========================
   START PANEL / ЛЕТАЮЩИЙ ГЛАЗ
========================= */
.start-panel {
  margin-top: 10px;
  margin-bottom: 22px;
  padding: 18px 18px 18px 18px;
  border-radius: 24px;
  background: radial-gradient(circle at 0 0, rgba(0, 255, 255, 0.25), rgba(2, 8, 20, 0.98));
  border: 1px solid rgba(39, 243, 255, 0.45);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.start-panel::after {
  content: "";
  position: absolute;
  inset: -50%;
  background: conic-gradient(from 0deg, transparent, rgba(0, 255, 255, 0.5), transparent);
  mix-blend-mode: soft-light;
  opacity: 0.16;
  animation: holo-spin 12s linear infinite;
}

/* орбита и глаз */
.start-eye-orbit {
  position: relative;
  width: 88px;
  height: 88px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.start-orbit-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  border: 1px dashed rgba(0, 255, 255, 0.5);
  box-shadow: 0 0 18px rgba(0, 255, 255, 0.6);
  animation: orbit-rotate 9s linear infinite;
}

.start-eye {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 30% 0, #32f4ff, #003a7a 65%, #00101b 100%);
  box-shadow:
    0 0 26px rgba(0, 255, 255, 0.8),
    0 0 60px rgba(0, 90, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: eye-floating 3.2s ease-in-out infinite;
}

.start-eye img {
  width: 130%;
  height: auto;
  filter: drop-shadow(0 0 18px rgba(0, 255, 255, 0.8));
}

@keyframes eye-floating {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes orbit-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* текстовая часть */
.start-content {
  position: relative;
  z-index: 2;
}

.start-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #92f2ff;
  margin-bottom: 4px;
}

.start-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.start-steps {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: #c3e2ff;
  margin-bottom: 12px;
}

.start-step {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.start-step-index {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(0, 13, 28, 0.9);
  border: 1px solid rgba(0, 255, 255, 0.7);
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #8ef9ff;
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.7);
}

.start-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* летающие стикеры справа */
.hero-float {
  position: absolute;
  width: 150px;
  border-radius: 16px;
  border: 1px solid rgba(0, 255, 255, 0.4);
  background: radial-gradient(circle at 30% 0, #163d63, #020714 70%);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  color: #b7ecff;
  backdrop-filter: blur(10px);
}

.hero-float-title {
  font-weight: 700;
  color: #6ae8ff;
}

.hero-float-text {
  font-size: 10px;
  opacity: 0.8;
}

.hero-float-left {
  top: 8%;
  left: -10%;
  animation: float-xy 8s ease-in-out infinite;
}

.hero-float-right {
  bottom: 7%;
  right: -10%;
  animation: float-xy 10s ease-in-out infinite reverse;
}

/* общие анимации */
@keyframes float-xy {
  0%,100% { transform: translate3d(0,0,0); }
  50% { transform: translate3d(14px,-16px,0); }
}

@keyframes holo-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* =========================
   АДАПТИВ
========================= */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-banner {
    order: -1;
  }
  .mascot-section {
    grid-template-columns: 1fr;
  }
  .start-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
}