:root {
  --bg: #0b1220;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-2: rgba(255, 255, 255, 0.06);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.28);
  --radius: 18px;
  --radius-sm: 14px;
  --pad: 18px;

  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 15% 10%, rgba(72, 99, 255, 0.28), transparent 55%),
    radial-gradient(900px 520px at 85% 15%, rgba(0, 217, 255, 0.18), transparent 55%),
    radial-gradient(900px 560px at 50% 90%, rgba(255, 94, 157, 0.14), transparent 60%),
    linear-gradient(180deg, #070b14 0%, #0b1220 40%, #070b14 100%);
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 18px 42px;
}

.hero {
  padding: 22px 22px 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04));
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.hero h1 {
  margin: 0 0 8px 0;
  font-size: 34px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero p {
  margin: 0 0 8px 0;
  color: var(--muted);
  line-height: 1.6;
}

.card {
  margin-top: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.09), rgba(255,255,255,0.05));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.card h2 {
  margin: 0 0 12px 0;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.field {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

label {
  font-weight: 650;
  color: rgba(255, 255, 255, 0.86);
}

input[type="text"],
input[type="email"],
textarea,
input[type="file"] {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(10, 14, 24, 0.55);
  color: var(--text);
  padding: 12px 12px;
  font-size: 15px;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.04);
}

textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.5;
}

input[type="file"] {
  padding: 10px 12px;
}

input:focus,
textarea:focus {
  border-color: rgba(110, 170, 255, 0.55);
  box-shadow:
    0 0 0 3px rgba(110, 170, 255, 0.22),
    inset 0 1px 0 rgba(255,255,255,0.04);
}

.hint {
  font-size: 13px;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 10px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.14), rgba(255,255,255,0.06));
  color: var(--text);
  font-weight: 750;
  font-size: 15px;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: rgba(140, 190, 255, 0.42);
  box-shadow: var(--shadow);
}

.btn:active {
  transform: translateY(0px);
}

.card.success {
  border-color: rgba(76, 205, 137, 0.35);
  background: linear-gradient(180deg, rgba(76, 205, 137, 0.14), rgba(255,255,255,0.05));
}

.card.error {
  border-color: rgba(255, 92, 92, 0.42);
  background: linear-gradient(180deg, rgba(255, 92, 92, 0.16), rgba(255,255,255,0.05));
}

.card.error ul {
  margin: 10px 0 10px 18px;
  color: rgba(255,255,255,0.88);
}

.card.error p {
  margin: 10px 0 0 0;
  color: var(--muted);
}

.field.captcha input {
  max-width: 240px;
}

@media (min-width: 760px) {
  .container {
    padding: 34px 22px 54px;
  }

  .card {
    padding: 20px;
  }

  .hero {
    padding: 26px 24px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}