:root {
  --ink: #1e2125;
  --paper: #f5f2e9;
  --sun: #f59f00;
  --sea: #0d5c63;
  --accent: #c44536;
  --ok: #1f7a1f;
  --err: #b02a37;
  --shadow: rgba(0, 0, 0, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 15%, #ffd166 0, #ffd166 12%, transparent 38%),
              linear-gradient(125deg, #f0ead2 0%, #e9f5db 48%, #d6ebee 100%);
  overflow-x: hidden;
}

.bg-shape {
  position: fixed;
  border-radius: 999px;
  filter: blur(40px);
  opacity: 0.34;
  z-index: 0;
}

.bg-shape-a {
  width: 280px;
  height: 280px;
  right: -80px;
  top: -70px;
  background: var(--accent);
}

.bg-shape-b {
  width: 360px;
  height: 360px;
  left: -130px;
  bottom: -140px;
  background: var(--sea);
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 36px 20px 42px;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 24px;
}

.panel {
  background: rgba(245, 242, 233, 0.84);
  border: 1px solid rgba(30, 33, 37, 0.1);
  border-radius: 18px;
  box-shadow: 0 12px 28px var(--shadow);
  backdrop-filter: blur(5px);
  animation: enter 520ms ease-out both;
}

.intro {
  padding: 28px;
}

.kicker {
  margin: 0;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--sea);
}

h1 {
  margin: 10px 0 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.08;
}

.subtitle {
  margin: 0 0 22px;
  font-size: 1rem;
  max-width: 34ch;
}

.hint {
  background: rgba(13, 92, 99, 0.07);
  border-left: 4px solid var(--sea);
  border-radius: 10px;
  padding: 12px 14px;
}

.hint p {
  margin: 5px 0;
  font-size: 0.94rem;
}

.form-wrap {
  padding: 22px;
  animation-delay: 100ms;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

form h2 {
  margin: 0 0 8px;
  font-family: Georgia, "Times New Roman", serif;
}

form {
  display: grid;
  gap: 10px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(30, 33, 37, 0.1);
  border-radius: 14px;
  padding: 14px;
}

label {
  font-weight: 700;
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid #c5c2b7;
  border-radius: 12px;
  padding: 11px 12px;
  background: #fffef9;
  font: inherit;
  transition: border-color 160ms ease, transform 160ms ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--sea);
  transform: translateY(-1px);
}

textarea {
  min-height: 92px;
  resize: vertical;
}

button {
  margin-top: 6px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--sea), #0f7f89);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 12px 14px;
  cursor: pointer;
  transition: transform 150ms ease, filter 150ms ease;
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.result {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(30, 33, 37, 0.06);
  min-height: 42px;
  white-space: pre-wrap;
  line-height: 1.35;
}

.result.ok {
  background: rgba(31, 122, 31, 0.12);
  border: 1px solid rgba(31, 122, 31, 0.34);
}

.result.err {
  background: rgba(176, 42, 55, 0.12);
  border: 1px solid rgba(176, 42, 55, 0.34);
}

@media (max-width: 900px) {
  .page {
    grid-template-columns: 1fr;
    padding-top: 24px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}