.message-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: 24px;
  margin-bottom: 32px;
}

.header-content {
  display: grid;
  gap: 16px;
}

.message-intro-card {
  align-self: end;
  padding: 24px;
  border: 1px solid rgba(18, 63, 60, 0.12);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
  box-shadow: var(--shadow-sm);
}

.message-intro-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--accent-strong);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

.message-guidelines {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.message-guidelines span {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: var(--radius-full);
  background: rgba(18, 63, 60, 0.08);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.message-page-grid {
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.25fr);
  align-items: start;
  gap: 30px;
}

.form-card {
  padding: 28px;
}

.message-page-grid .form-card {
  position: sticky;
  top: calc(var(--header-height) + 26px);
}

.message-form-card {
  animation-delay: 0.1s;
}

.form-group {
  display: grid;
  gap: 8px;
}

.small-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form-helper-text {
  font-size: 0.85rem;
}

.message-submit-btn {
  min-height: 48px;
}

.captcha-box {
  padding: 18px;
  border: 1px solid rgba(18, 63, 60, 0.1);
  border-radius: 22px;
  background: rgba(18, 63, 60, 0.05);
}

.captcha-question {
  margin-bottom: 12px;
  color: var(--accent);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
}

.captcha-row {
  display: flex;
  gap: 12px;
}

.captcha-row input {
  flex: 1;
}

.message-list-container {
  padding: 24px;
  border: 1px solid rgba(18, 63, 60, 0.1);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.58);
  box-shadow: var(--shadow-sm);
}

.message-list-head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.message-list-head h3 {
  font-size: 1.5rem;
}

.message {
  padding: 22px;
  border: 1px solid rgba(18, 63, 60, 0.1);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 14px 32px rgba(16, 19, 17, 0.05);
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.message:hover {
  transform: translateY(-3px);
  border-color: rgba(18, 63, 60, 0.18);
  box-shadow: var(--shadow-sm);
}

.message .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--subtle);
  font-size: 0.9rem;
}

.message .nickname {
  color: var(--accent-strong);
  font-weight: 700;
}

.message .content {
  color: var(--muted);
  word-break: break-word;
}

.reply {
  margin-top: 16px;
  padding: 16px;
  border-left: 4px solid var(--accent);
  border-radius: 0 18px 18px 0;
  background: rgba(18, 63, 60, 0.06);
}

.reply-header {
  margin-bottom: 6px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.reply-content {
  color: var(--muted);
}

.honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

@media (max-width: 980px) {
  .message-intro,
  .message-page-grid {
    grid-template-columns: 1fr;
  }

  .message-page-grid .form-card {
    position: static;
  }
}

@media (max-width: 760px) {
  .form-card,
  .message-list-container,
  .message-intro-card {
    padding: 20px;
  }

  .captcha-row {
    flex-direction: column;
  }
}