.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.send-main {
  width: min(680px, 100%);
  flex: 1;
  margin: 0 auto;
  padding: 4.2rem 1.25rem 5rem;
}

.hero {
  max-width: 590px;
  margin: 0 auto 2rem;
  text-align: center;
  animation: fade-up 0.4s ease both;
}

.hero h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.5rem, 9vw, 4.35rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.hero h1 span {
  color: var(--accent);
  background: linear-gradient(100deg, #047a40, #34d27e);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero > p:last-child {
  max-width: 31rem;
  margin: 1.1rem auto 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.upload-card,
.success-card {
  overflow: hidden;
  animation: fade-up 0.4s 0.06s ease both;
}

.card-heading {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-soft);
}

.card-heading h2,
.card-heading p {
  margin: 0;
}

.card-heading h2 {
  color: var(--text-soft);
  font-size: 1rem;
}

.card-heading p {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.send-form {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.file-picker {
  min-height: 9.5rem;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 2px dashed var(--border);
  border-radius: 18px;
  color: var(--muted);
  background: #fbfcfb;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.file-picker:hover,
.file-picker.is-dragging,
.file-picker:focus-within {
  border-color: #6ee7a6;
  background: var(--accent-soft);
}

.file-picker.has-file {
  min-height: 5.25rem;
  flex-direction: row;
  justify-content: flex-start;
  gap: 0.85rem;
  text-align: left;
}

.picker-icon {
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: var(--muted);
  background: var(--surface-soft);
  transition: color 0.15s ease, background 0.15s ease;
}

.file-picker:hover .picker-icon,
.file-picker.is-dragging .picker-icon,
.file-picker.has-file .picker-icon {
  color: var(--accent);
  background: #dff9e9;
}

.picker-icon svg {
  width: 1.35rem;
  height: 1.35rem;
}

.picker-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.has-file .picker-copy {
  flex: 1;
  align-items: flex-start;
}

.picker-copy strong {
  margin-top: 0.8rem;
  max-width: 100%;
  overflow: hidden;
  color: var(--text-soft);
  font-size: 0.88rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.has-file .picker-copy strong { margin-top: 0; }

.picker-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: -0.45rem;
}

.picker-copy span {
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.ready-chip,
.meta-chip {
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  color: var(--accent-hover);
  background: var(--accent-soft);
  font-size: 0.68rem;
  font-weight: 700;
  white-space: nowrap;
}

.change-label {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
}

.option-group {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.option-group.is-locked {
  opacity: 0.58;
}

.option-group.is-locked .expiry-grid span {
  cursor: not-allowed;
}

.option-group legend,
.field-label {
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.option-group legend svg {
  width: 0.9rem;
  height: 0.9rem;
}

.expiry-grid {
  margin-top: 0.55rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.45rem;
}

.expiry-grid label {
  position: relative;
}

.expiry-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.expiry-grid span {
  min-height: 2.7rem;
  padding: 0.55rem 0.4rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-soft);
  background: var(--surface);
  font-size: 0.76rem;
  font-weight: 650;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.expiry-grid input:checked + span {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  box-shadow: var(--shadow-soft);
}

.expiry-grid input:focus-visible + span {
  outline: 3px solid var(--accent-border);
  outline-offset: 2px;
}

.advanced {
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: 15px;
  background: #fafbfa;
}

.advanced summary {
  min-height: 3.25rem;
  padding: 0.75rem 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.advanced summary::-webkit-details-marker { display: none; }
.advanced summary > span { display: flex; align-items: center; gap: 0.55rem; }
.advanced summary > svg { width: 1rem; height: 1rem; stroke: var(--muted); stroke-width: 2; transition: transform 0.15s ease; }
.advanced[open] summary > svg { transform: rotate(180deg); }

.summary-icon {
  width: 1.55rem;
  height: 1.55rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--muted);
  background: #fff;
  font-size: 0.7rem;
}

.advanced-list {
  padding: 0 0.9rem 0.4rem;
}

.option-row {
  min-height: 4.2rem;
  padding: 0.7rem 0;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  border-top: 1px solid var(--border-soft);
}

.row-icon {
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--muted);
  background: var(--surface-soft);
}

.row-icon svg { width: 1rem; height: 1rem; }

.row-copy {
  min-width: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.row-copy strong { color: var(--text-soft); font-size: 0.78rem; }
.row-copy small { margin-top: 0.15rem; color: var(--muted); font-size: 0.7rem; line-height: 1.35; }
.row-copy em { margin-left: 0.35rem; color: var(--muted-light); font-size: 0.58rem; font-style: normal; letter-spacing: 0.06em; text-transform: uppercase; }
.is-disabled { opacity: 0.58; pointer-events: none; }

.toggle {
  position: relative;
  width: 2.45rem;
  height: 1.4rem;
  flex: 0 0 auto;
}

.toggle input {
  position: absolute;
  opacity: 0;
}

.toggle span {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--border);
  transition: background 0.15s ease;
}

.toggle span::after {
  content: '';
  position: absolute;
  top: 0.15rem;
  left: 0.15rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(16, 30, 20, 0.2);
  transition: transform 0.15s ease;
}

.toggle input:checked + span { background: var(--accent); }
.toggle input:checked + span::after { transform: translateX(1.05rem); }
.toggle input:focus-visible + span { outline: 3px solid var(--accent-border); outline-offset: 2px; }

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.form-actions p {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.form-actions p svg { width: 0.95rem; height: 0.95rem; flex: 0 0 auto; color: var(--accent); }
.send-form .primary-action { flex: 0 0 auto; }
.send-form .primary-action .btn-icon::before { content: '↑'; }

.trust-strip {
  margin: 1.2rem auto 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.35rem;
  color: var(--muted);
  font-size: 0.7rem;
}

.trust-strip span::before {
  content: '✓';
  margin-right: 0.35rem;
  color: var(--accent);
  font-weight: 800;
}

.success-stack {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  animation: fade-up 0.35s ease both;
}

.success-heading {
  padding: 2rem 1.5rem 1.5rem;
  border-bottom: 1px solid var(--border-soft);
  background: linear-gradient(180deg, var(--accent-soft), #fff);
  text-align: center;
}

.success-heading h2 { margin: 0; font-size: 1.25rem; }
.success-heading p { margin: 0.35rem 0 0; color: var(--muted); font-size: 0.8rem; }

.success-file {
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border-soft);
}

.success-file > div { min-width: 0; display: flex; flex-direction: column; }
.success-file strong { overflow: hidden; color: var(--text-soft); font-size: 0.85rem; text-overflow: ellipsis; white-space: nowrap; }
.success-file small { margin-top: 0.2rem; color: var(--muted); font-size: 0.7rem; }

.share-fields {
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field { display: flex; flex-direction: column; gap: 0.45rem; }

.copy-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.5rem;
}

.control {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 13px;
  padding: 0.7rem 0.85rem;
  color: var(--text-soft);
  background: #fafbfa;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.77rem;
}

.control:focus { outline: 2px solid var(--accent-border); border-color: var(--accent); }
.pin-control { font-size: 1rem; font-weight: 750; letter-spacing: 0.15em; }
.primary-action.compact { min-height: 44px; padding-inline: 1rem; }
.helper { margin: -0.3rem 0 0; color: var(--muted); font-size: 0.7rem; line-height: 1.5; }

.email-heading {
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border-bottom: 1px solid var(--border-soft);
}

.email-heading .heading-icon { width: 2.35rem; height: 2.35rem; }
.email-heading strong { color: var(--text-soft); font-size: 0.8rem; }
.email-heading p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.7rem; }

.email-form {
  padding: 1.15rem 1.2rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.email-form .control { font-family: inherit; }
.email-form textarea { resize: vertical; }
.email-form .field > small,
.email-actions > small,
.pin-email-option small { color: var(--muted); font-size: 0.68rem; line-height: 1.4; }

.pin-email-option {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  color: var(--text-soft);
  cursor: pointer;
}

.pin-email-option input { margin-top: 0.2rem; accent-color: var(--accent); }
.pin-email-option span { display: flex; flex-direction: column; gap: 0.1rem; }
.pin-email-option strong { font-size: 0.76rem; }

.email-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.email-actions > small { max-width: 22rem; }
.email-actions button { flex: 0 0 auto; }

.email-complete {
  padding: 1.35rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.email-complete > span {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--accent-hover);
  background: var(--accent-soft);
  font-weight: 800;
}

.email-complete strong { color: var(--text-soft); font-size: 0.8rem; }
.email-complete p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.7rem; }
.another-action { align-self: flex-start; }

@media (max-width: 600px) {
  .send-main { padding: 3.1rem 1rem 4rem; }
  .hero { margin-bottom: 1.5rem; }
  .hero h1 { font-size: clamp(2.55rem, 14vw, 3.7rem); }
  .hero > p:last-child { font-size: 0.9rem; }
  .card-heading, .send-form, .success-file, .share-fields { padding-left: 1rem; padding-right: 1rem; }
  .expiry-grid { grid-template-columns: repeat(2, 1fr); }
  .form-actions { align-items: stretch; flex-direction: column; }
  .form-actions p { justify-content: center; }
  .send-form .primary-action { width: 100%; }
  .trust-strip span:nth-child(2) { display: none; }
  .copy-row { grid-template-columns: 1fr; }
  .copy-row button { width: 100%; }
  .file-picker.has-file { flex-wrap: wrap; }
  .ready-chip { margin-left: 3.85rem; }
  .email-actions { align-items: stretch; flex-direction: column; }
  .email-actions button { width: 100%; }
}