:root {
  --blue: #007B80;
  --white: #FFFAF1;
  --black: #10100E;
  --gold: #D2AF37;
  --line: rgba(16, 16, 14, 0.14);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--white); color: var(--black); }
body {
  font-family: "M PLUS 1p", system-ui, sans-serif;
  line-height: 1.7;
}
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
.app-shell {
  width: min(100%, 1120px);
  margin: 0 auto;
  min-height: 100vh;
  padding: 24px 18px calc(24px + var(--safe-bottom));
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-logo { width: 56px; height: 56px; object-fit: contain; flex: 0 0 auto; }
.brand-overline {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--blue);
  font-weight: 700;
}
.brand h1 { margin: 0; font-size: clamp(24px, 3vw, 30px); line-height: 1.2; }
.layout-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--blue);
  font-weight: 700;
}
.intro-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.28;
}
.lead { margin: 0 0 16px; }
.info-list {
  margin: 0;
  padding-left: 20px;
}
.info-list li + li { margin-top: 8px; }
.banner {
  margin-bottom: 16px;
  border: 1px solid rgba(0,123,128,.28);
  background: rgba(0,123,128,.08);
  color: var(--black);
  border-radius: 16px;
  padding: 12px 14px;
  font-size: 14px;
}
.hidden { display: none !important; }
.mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.mode-chip {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  min-height: 46px;
  padding: 0 16px;
  font-weight: 700;
}
.mode-chip.is-active {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}
.session-panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  margin-bottom: 16px;
}
.account-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}
.account-badge img {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid var(--line);
}
.account-copy strong { display: block; font-size: 16px; }
.account-meta { font-size: 13px; color: rgba(16,16,14,.72); }
.message-form { display: grid; gap: 16px; }
.field { display: grid; gap: 8px; }
.field-row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.field-label { font-size: 14px; font-weight: 700; }
.count { font-size: 12px; color: rgba(16,16,14,.6); }
.field-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  min-height: 52px;
  padding: 0 16px;
  background: #fff;
}
.field-input:focus, .mode-chip:focus, .primary-button:focus, .secondary-button:focus, .ghost-button:focus {
  outline: 2px solid rgba(0,123,128,.22);
  outline-offset: 2px;
}
.textarea {
  min-height: 210px;
  padding: 16px;
  resize: vertical;
}
.check-row {
  display: flex; gap: 10px; align-items: flex-start; font-size: 14px;
}
.check-row input { margin-top: 3px; accent-color: var(--blue); }
.turnstile-wrap { padding-top: 4px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.primary-button, .secondary-button, .ghost-button {
  min-height: 48px;
  border-radius: 999px;
  padding: 0 18px;
  border: 1px solid var(--black);
  font-weight: 700;
  background: transparent;
}
.primary-button {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}
.secondary-button { background: var(--white); }
.ghost-button { border-color: var(--line); }
@media (min-width: 860px) {
  .layout-grid {
    grid-template-columns: minmax(280px, 380px) minmax(420px, 1fr);
    align-items: start;
  }
  .topbar { margin-bottom: 24px; }
}