:root {
  --bg0: #04070f;
  --line: rgba(119, 219, 255, 0.32);
  --text: #ebf3ff;
  --muted: #a3b3ce;
  --cyan: #77dbff;
  --violet: #7a85ff;
  --orange: #ff9d59;
  --focus: #ffd86f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background-color: #04070f;
}

body {
  font-family: "Segoe UI Variable", "SF Pro Display", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1300px 700px at -10% -10%, rgba(72, 112, 255, 0.26), transparent 62%),
    radial-gradient(1000px 620px at 110% -10%, rgba(255, 157, 89, 0.18), transparent 66%),
    linear-gradient(180deg, var(--bg0), #050913 38%, #04050b);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.44;
  background-image:
    radial-gradient(1.4px 1.4px at 35px 55px, rgba(255, 255, 255, 0.72), transparent 72%),
    radial-gradient(1.2px 1.2px at 95px 140px, rgba(213, 232, 255, 0.66), transparent 72%),
    radial-gradient(1.1px 1.1px at 170px 32px, rgba(255, 255, 255, 0.58), transparent 72%);
  background-size: 220px 220px, 300px 300px, 350px 350px;
  animation: starDrift 42s linear infinite;
}

.site-shell {
  width: min(980px, 92vw);
  margin: clamp(18px, 4vw, 42px) auto 88px;
  background: linear-gradient(160deg, rgba(10, 19, 40, 0.88), rgba(7, 11, 24, 0.86));
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.42);
  padding: clamp(16px, 2.8vw, 24px);
  display: grid;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.neon-frame::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from 0deg, var(--cyan), var(--violet), var(--orange), var(--cyan));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  animation: frameSpin 16s linear infinite;
}

.hero-block,
.contacts-block {
  background: linear-gradient(160deg, rgba(12, 25, 52, 0.9), rgba(8, 16, 34, 0.92));
  border: 1px solid rgba(119, 219, 255, 0.2);
  border-radius: 16px;
  padding: clamp(16px, 3vw, 22px);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-block::after,
.contacts-block::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(119, 219, 255, 0.08) 48%, transparent 100%);
  transform: translateX(-120%);
  transition: transform 1s ease;
  pointer-events: none;
}

.hero-block:hover::after,
.contacts-block:hover::after {
  transform: translateX(120%);
}

.logo-core {
  width: min(260px, 64vw);
  aspect-ratio: 1;
  margin: 2px auto 18px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  position: relative;
}

.logo-core::before {
  content: "";
  position: absolute;
  inset: 4%;
  border-radius: 50%;
  border: 1px solid rgba(119, 219, 255, 0.4);
  box-shadow: 0 0 28px rgba(119, 219, 255, 0.16);
  animation: orbitA 18s linear infinite;
}

.logo-core::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px dashed rgba(255, 157, 89, 0.46);
  animation: orbitB 24s linear infinite;
}

.main-logo {
  width: min(220px, 56vw);
  height: auto;
  filter: drop-shadow(0 0 26px rgba(119, 219, 255, 0.32));
  animation: logoLift 7.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.signal-strip {
  border: 1px solid rgba(119, 219, 255, 0.22);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(8, 15, 33, 0.84), rgba(6, 12, 26, 0.9));
  padding: 8px;
  position: relative;
  overflow: hidden;
}

.signal-mask {
  overflow: hidden;
  border-radius: 10px;
  border: 1px solid rgba(119, 219, 255, 0.16);
  background: rgba(7, 13, 28, 0.8);
}

.signal-track {
  display: flex;
  width: max-content;
  animation: ticker 30s linear infinite;
}

.signal-track span {
  padding: 10px 16px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  color: #c7ddff;
}

.cta-grid {
  display: grid;
  gap: 11px;
}

.btn,
.contact-btn {
  --mx: 50%;
  --my: 50%;
  touch-action: manipulation;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 58px;
  padding: 14px 18px;
  text-decoration: none;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: transform 0.22s ease, box-shadow 0.22s ease, filter 0.22s ease, border-color 0.22s ease;
  overflow: hidden;
}

.btn::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(circle at var(--mx) var(--my), rgba(255, 255, 255, 0.26), transparent 48%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 8%, rgba(255, 255, 255, 0.16), transparent 92%);
  transform: translateX(-120%);
  transition: transform 0.9s ease;
}

.btn:hover::before {
  opacity: 1;
}

.btn:hover::after {
  transform: translateX(120%);
}

.btn svg,
.btn-icon,
.contact-icon {
  width: 21px;
  height: 21px;
  flex-shrink: 0;
}

.btn-primary {
  color: #041421;
  background: linear-gradient(135deg, var(--cyan), var(--orange));
  box-shadow: 0 10px 25px rgba(255, 157, 89, 0.2);
}

.btn-secondary {
  color: var(--text);
  background: linear-gradient(135deg, rgba(79, 120, 255, 0.88), rgba(125, 95, 255, 0.86));
  border-color: rgba(119, 219, 255, 0.34);
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.btn-primary:hover {
  box-shadow:
    0 0 0 1px rgba(255, 189, 136, 0.4),
    0 14px 30px rgba(255, 157, 89, 0.32),
    0 0 28px rgba(119, 219, 255, 0.22);
}

.btn-secondary:hover {
  box-shadow:
    0 0 0 1px rgba(161, 188, 255, 0.38),
    0 14px 30px rgba(103, 107, 255, 0.28),
    0 0 24px rgba(119, 219, 255, 0.2);
}

.btn:active,
.contact-btn:active {
  transform: translateY(1px) scale(0.99);
}

.contacts-block h2 {
  margin: 0 0 14px;
  font-size: clamp(1.16rem, 2.5vw, 1.38rem);
}

.contacts-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.contact-btn {
  position: relative;
  min-height: 108px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 10px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(119, 219, 255, 0.3);
  border-radius: 15px;
  background:
    radial-gradient(130px 70px at 50% -10%, rgba(119, 219, 255, 0.2), transparent 80%),
    linear-gradient(160deg, rgba(10, 22, 46, 0.96), rgba(7, 14, 32, 0.94));
  box-shadow: inset 0 0 0 1px rgba(119, 219, 255, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, filter 0.25s ease;
  overflow: hidden;
}

.contact-btn::before {
  content: "";
  position: absolute;
  inset: -170% 32%;
  transform: rotate(18deg);
  background: linear-gradient(180deg, transparent 0%, rgba(255, 157, 89, 0.3) 50%, transparent 100%);
  animation: sweep 8s linear infinite;
  pointer-events: none;
}

.contact-btn::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(circle at var(--mx) var(--my), rgba(119, 219, 255, 0.2), transparent 46%);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}

.contact-btn:hover {
  transform: translateY(-3px);
  border-color: rgba(119, 219, 255, 0.7);
  box-shadow:
    0 16px 28px rgba(3, 10, 25, 0.62),
    0 0 24px rgba(119, 219, 255, 0.2);
  filter: brightness(1.04);
}

.contact-btn:hover::after {
  opacity: 1;
}

.contact-icon {
  color: var(--cyan);
  z-index: 1;
}

.contact-label {
  display: block;
  text-align: center;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 600;
  letter-spacing: 0.01em;
  z-index: 1;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 75;
  background: rgba(3, 8, 20, 0.78);
  backdrop-filter: blur(4px);
  display: none;
  place-items: center;
  padding: 12px;
}

.auth-overlay.is-open {
  display: grid;
}

.auth-card {
  width: min(420px, 100%);
  border-radius: 14px;
  border: 1px solid rgba(119, 219, 255, 0.42);
  background: linear-gradient(165deg, rgba(12, 24, 50, 0.97), rgba(8, 14, 30, 0.98));
  box-shadow: 0 22px 44px rgba(0, 0, 0, 0.45);
  padding: 14px;
}

.auth-card h3 {
  margin: 0;
  font-size: 1.04rem;
}

.auth-info {
  margin: 8px 0 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

.admin-panel {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 70;
  width: min(470px, calc(100vw - 24px));
  max-height: calc(100vh - 32px);
  overflow: auto;
  background: linear-gradient(170deg, rgba(11, 23, 48, 0.97), rgba(8, 14, 31, 0.98));
  border: 1px solid rgba(119, 219, 255, 0.42);
  border-radius: 14px;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.5);
  padding: 12px;
}

.admin-panel-page {
  position: static;
  right: auto;
  bottom: auto;
  width: 100%;
  max-height: none;
}


.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.admin-head-actions {
  display: flex;
  gap: 6px;
}

.admin-close {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid rgba(119, 219, 255, 0.3);
  background: rgba(13, 23, 47, 0.84);
  color: var(--text);
  cursor: pointer;
  touch-action: manipulation;
}

.admin-group {
  border: 1px solid rgba(119, 219, 255, 0.2);
  border-radius: 12px;
  background: rgba(8, 15, 32, 0.65);
  padding: 10px;
  margin-bottom: 10px;
}

.admin-group h4 {
  margin: 0 0 8px;
  font-size: 0.96rem;
}

.admin-list {
  display: grid;
  gap: 8px;
}

.admin-item {
  border: 1px solid rgba(119, 219, 255, 0.16);
  border-radius: 10px;
  background: rgba(7, 13, 28, 0.72);
  padding: 8px;
}

.admin-item-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.admin-item-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #cde0ff;
}

.admin-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  color: #b7cced;
}

.admin-switch input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #77dbff;
}

.admin-item-grid {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-field {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
  text-align: left;
}

.admin-field span,
.admin-field-inline span {
  font-size: 0.8rem;
  color: #cde0ff;
}

.admin-field input,
.admin-field-inline input {
  width: 100%;
  height: 36px;
  font-size: 16px;
  border-radius: 9px;
  border: 1px solid rgba(119, 219, 255, 0.26);
  background: rgba(7, 14, 31, 0.86);
  color: var(--text);
  padding: 0 10px;
}

.admin-field-inline {
  display: grid;
  gap: 4px;
  text-align: left;
}

.admin-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.admin-actions-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.admin-btn {
  height: 38px;
  border-radius: 10px;
  border: 1px solid rgba(119, 219, 255, 0.36);
  background: linear-gradient(135deg, rgba(111, 217, 255, 0.88), rgba(255, 157, 89, 0.86));
  color: #03121f;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

.admin-btn.ghost {
  background: linear-gradient(135deg, rgba(52, 93, 181, 0.88), rgba(87, 76, 189, 0.86));
  color: var(--text);
}

.admin-status {
  margin: 10px 0 0;
  font-size: 0.77rem;
  color: var(--muted);
}

.container {
  width: min(760px, 92vw);
  margin: clamp(20px, 4vw, 44px) auto 30px;
  text-align: center;
}

.admin-page-wrap {
  width: min(1100px, 94vw);
}

.admin-login-card {
  width: min(430px, 100%);
  margin: 0 auto 16px;
  text-align: left;
}

.admin-login-card h1 {
  margin: 0 0 8px;
  font-size: 1.28rem;
}

.admin-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.card {
  position: relative;
  background: linear-gradient(160deg, rgba(12, 24, 50, 0.92), rgba(8, 14, 30, 0.9));
  border: 1px solid rgba(119, 219, 255, 0.3);
  border-radius: 18px;
  padding: clamp(16px, 3vw, 24px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

.go-robot {
  width: min(130px, 38vw);
  height: auto;
  margin-bottom: 6px;
  animation: logoLift 7.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.eyebrow {
  margin: 0;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.74rem;
  font-weight: 700;
}

.go-status,
.go-hint {
  margin: 10px 0 0;
  color: var(--muted);
}

.go-actions {
  margin-top: 16px;
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.back-line {
  margin: 8px 0 0;
}

.text-link {
  color: #c5defe;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

.error-card {
  border-color: rgba(255, 165, 120, 0.45);
  background: linear-gradient(160deg, rgba(64, 24, 20, 0.84), rgba(38, 14, 17, 0.88));
}

.error-card p {
  margin: 0 0 10px;
  color: #ffd8c6;
}

.error-card pre {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  overflow-x: auto;
  background: rgba(12, 8, 10, 0.92);
  border: 1px solid rgba(255, 167, 145, 0.25);
}

.error-card code {
  color: #fff1c8;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

.noscript-box {
  width: min(980px, 92vw);
  margin: 0 auto 20px;
  background: rgba(69, 26, 26, 0.86);
  border: 1px solid rgba(255, 154, 154, 0.4);
  border-radius: 12px;
  color: #ffe3e3;
  padding: 12px 14px;
  text-align: center;
}

.btn:focus-visible,
.contact-btn:focus-visible,
.text-link:focus-visible,
.admin-btn:focus-visible,
.admin-close:focus-visible,
.admin-field input:focus-visible,
.admin-field-inline input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@keyframes starDrift {
  from { transform: translateY(0); }
  to { transform: translateY(14px); }
}

@keyframes frameSpin {
  to { transform: rotate(360deg); }
}

@keyframes orbitA {
  to { transform: rotate(360deg); }
}

@keyframes orbitB {
  to { transform: rotate(-360deg); }
}

@keyframes logoLift {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes sweep {
  from { transform: rotate(18deg) translateY(-28%); }
  to { transform: rotate(18deg) translateY(28%); }
}

@media (min-width: 720px) {
  .cta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (hover: none), (pointer: coarse) {
  body::before {
    opacity: 0.3;
    animation-duration: 80s;
  }

  .neon-frame::before {
    animation-duration: 28s;
  }

  .logo-core::before {
    animation-duration: 30s;
  }

  .logo-core::after {
    animation-duration: 36s;
  }

  .main-logo {
    animation-duration: 10s;
  }

  .signal-track {
    animation-duration: 36s;
  }

  .contact-btn::before {
    animation-duration: 14s;
  }

  .btn:hover,
  .contact-btn:hover {
    transform: none;
    filter: none;
  }

  .btn:hover::before,
  .contact-btn:hover::after {
    opacity: 0;
  }

  .btn:hover::after,
  .hero-block:hover::after,
  .contacts-block:hover::after {
    transform: translateX(-120%);
  }
}

@media (max-width: 560px) {
  .contacts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-btn {
    min-height: 98px;
  }

  .admin-panel {
    right: 8px;
    bottom: 8px;
    width: calc(100vw - 16px);
    max-height: calc(100vh - 16px);
  }

  .admin-panel-page {
    right: auto;
    bottom: auto;
    width: 100%;
    max-height: none;
  }


  .admin-actions-3 {
    grid-template-columns: 1fr;
  }

  .admin-actions {
    grid-template-columns: 1fr;
  }

  .admin-item-grid {
    grid-template-columns: 1fr;
  }

  .admin-item-head {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .contacts-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}