:root {
  color-scheme: light;
  --bg: #f3f7f8;
  --surface: #ffffff;
  --surface-muted: #eef6f5;
  --text: #17212b;
  --muted: #5b6774;
  --accent: #0f766e;
  --accent-dark: #0b5d56;
  --danger: #b42318;
  --danger-bg: #fff4f2;
  --line: #d6e2e1;
  --focus: rgba(15, 118, 110, 0.22);
  --shadow: 0 20px 48px rgba(17, 24, 39, 0.1);
  --keyboard-inset: 0px;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

html {
  scroll-padding: 18px 0 calc(18px + var(--keyboard-inset));
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.13), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

a {
  color: var(--accent);
}

.page {
  width: min(100% - 32px, 720px);
  margin: 0 auto;
  padding: 24px 0 calc(48px + var(--keyboard-inset));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 26px;
  flex-wrap: nowrap;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand {
  color: var(--accent-dark);
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
  min-width: 0;
}

.lang-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
}

.lang-button {
  min-width: 44px;
  min-height: 32px;
  padding: 6px 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .86rem;
  font-weight: 800;
  cursor: pointer;
}

.lang-button.is-active {
  background: var(--accent);
  color: #ffffff;
}

.shell {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.intro,
.form-panel,
.success-panel {
  padding: 28px;
}

.intro {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #ffffff 0%, #edf7f6 100%);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.subtitle {
  max-width: 38rem;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.form-grid {
  display: grid;
  gap: 0px;
}

.field {
  display: grid;
  gap: 4px;
}

label,
.field-label {
  font-size: .94rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #c9d6d5;
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  line-height: 1.4;
  transition: border-color .16s ease, box-shadow .16s ease;
}

select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) 21px,
    calc(100% - 14px) 21px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 42px;
}

textarea {
  min-height: 112px;
  resize: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus);
  outline: 0;
}

input[aria-invalid="true"],
select[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--danger);
}

.adapter-hint {
  margin-top: 2px;
  padding: 12px 14px;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: #f7fbfb;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.55;
}

.error-text {
  min-height: 1.2em;
  color: var(--danger);
  font-size: .88rem;
  line-height: 1.35;
}

.field-help {
  color: var(--muted);
  font-size: .88rem;
  line-height: 1.45;
}

.consent-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-muted);
}

.consent-row input {
  flex: 0 0 auto;
  width: 20px;
  min-height: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.consent-copy {
  color: var(--text);
  font-size: .94rem;
  line-height: 1.45;
}

.form-error {
  display: none;
  padding: 12px 14px;
  border: 1px solid rgba(180, 35, 24, 0.24);
  border-radius: 10px;
  background: var(--danger-bg);
  color: var(--danger);
  font-weight: 600;
  line-height: 1.45;
}

.form-error.is-visible {
  display: block;
}

.form-error.is-visible + .submit-button {
  margin-top: 8px;
}

.submit-button,
.whatsapp-button,
.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s ease, background-color .16s ease, box-shadow .16s ease;
}

.button-spinner {
  display: none;
  width: 17px;
  height: 17px;
  margin-right: 10px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  border-radius: 999px;
  animation: button-spin .8s linear infinite;
}

.submit-button.is-loading .button-spinner {
  display: inline-block;
}

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

.submit-button,
.whatsapp-button {
  width: 100%;
  padding: 13px 18px;
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.2);
}

.submit-button:hover,
.submit-button:focus,
.whatsapp-button:hover,
.whatsapp-button:focus {
  background: var(--accent-dark);
  color: #ffffff;
  transform: translateY(-1px);
  text-decoration: none;
}

.submit-button:disabled {
  background: #89a7a3;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.success-panel[hidden],
.form-panel[hidden] {
  display: none;
}

.success-title {
  margin: 0 0 10px;
  font-size: clamp(1.55rem, 5vw, 2.15rem);
  line-height: 1.16;
}

.success-copy,
.lead-helper,
.seller-note,
.fallback-message {
  color: var(--muted);
  line-height: 1.6;
}

.lead-block {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: stretch;
  margin: 20px 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-muted);
}

.lead-helper {
  margin: -8px 0 18px;
  font-size: .94rem;
}

.lead-meta {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.lead-label {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.lead-id {
  display: flex;
  align-items: center;
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.04rem;
  font-weight: 800;
}

.copy-button {
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--accent-dark);
  box-shadow: none;
}

.product-row {
  margin: 0 0 18px;
  padding: 14px;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: #f7fbfb;
  line-height: 1.45;
}

.fallback-message {
  margin-top: 16px;
  padding: 14px;
  border: 1px dashed #aabbb9;
  border-radius: 10px;
  background: #fafdfd;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.seller-note {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: .94rem;
}

@media (max-width: 520px) {
  .page {
    width: min(100% - 24px, 720px);
    padding-top: 16px;
  }

  .topbar {
    gap: 10px;
    margin-bottom: 18px;
  }

  .intro,
  .form-panel,
  .success-panel {
    padding: 22px 18px;
  }

  .shell {
    border-radius: 16px;
  }

  .lead-block {
    grid-template-columns: 1fr;
  }

  .copy-button {
    width: 100%;
  }
}