.form-hero { padding: 40px 0 72px; position: relative; overflow: hidden; }
.form-hero::before { content: ""; position: absolute; top: -120px; right: -140px; width: 340px; height: 340px; border-radius: 50%; background: rgba(232,163,61,.32); pointer-events: none; }
.form-hero::after  { content: ""; position: absolute; bottom: -60px; left: -140px; width: 300px; height: 300px; border-radius: 50%; background: rgba(15,92,88,.12); pointer-events: none; }
.form-hero .wrap { position: relative; display: grid; gap: 40px; }
.form-intro { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.form-intro h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.14; }
.form-intro h1 em { font-weight: 500; color: var(--teal); text-decoration: underline wavy var(--amber) 3px; text-decoration-skip-ink: none; text-underline-offset: 10px; }
.form-intro > p { max-width: 520px; color: var(--muted); text-wrap: pretty; }
.form-intro .trust { margin-top: 4px; }

.form-card { position: relative; display: flex; flex-direction: column; gap: 26px; padding: 34px 22px 30px; border-radius: var(--r-card); background: var(--paper); box-shadow: 6px 7px 0 var(--pencil); }
.form-card::after { border-width: 2.5px; }
.form-card > .tape::before { left: 50%; }

.fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 16px; }
.fieldset + .fieldset { padding-top: 22px; border-top: 1.5px dashed rgba(29,42,45,.25); }
.fieldset > legend { padding: 0; margin-bottom: 4px; font-family: var(--hand); font-size: 22px; line-height: 1; color: var(--teal); transform: rotate(-1.5deg); }
.fieldset > legend::before { content: ""; display: inline-block; width: 26px; height: 10px; margin-right: 8px; background: currentColor; vertical-align: middle; -webkit-mask: var(--wave) center / 26px 10px no-repeat; mask: var(--wave) center / 26px 10px no-repeat; }

.grid-2 { display: grid; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field > label { font-size: 14px; font-weight: 700; }
.field .req { color: var(--red); margin-left: 2px; }
.field .hint { font-size: 13px; color: var(--faint); }

.input, .select, .textarea {
  width: 100%; font: inherit; font-size: 16px; color: var(--ink);
  background: #FFFDF8; border: 2px solid var(--pencil);
  border-radius: 12px 10px 14px 8px / 8px 14px 10px 12px;
  padding: 13px 15px;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.55; }
.select {
  appearance: none; padding-right: 42px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23122A2E' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; background-size: 18px;
}
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15, 92, 88, .16); background: #fff; }
.input::placeholder, .textarea::placeholder { color: #9AA4A3; }

.choices { display: flex; flex-wrap: wrap; gap: 10px; }
.choice { position: relative; }
.choice input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.choice span { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border: 2px solid var(--pencil); border-radius: var(--r-pill); background: var(--paper); font-size: 15px; font-weight: 600; cursor: pointer; transition: background .15s, color .15s, transform .1s, box-shadow .1s; }
.choice span::before { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--pencil); background: #fff; flex-shrink: 0; }
.choice input:checked + span { background: var(--teal); color: #fff; box-shadow: 3px 4px 0 var(--pencil); }
.choice input:checked + span::before { background: var(--amber); border-color: var(--pencil); }
.choice input:focus-visible + span { outline: 3px solid var(--amber); outline-offset: 3px; }

.consent { display: flex; gap: 10px; align-items: flex-start; padding: 14px 16px; border-radius: var(--r-box); background: var(--amber-soft); border: 1.5px solid var(--pencil); font-size: 14px; line-height: 1.55; }
.consent input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--teal); flex-shrink: 0; }

.field.invalid .input, .field.invalid .select, .field.invalid .textarea { border-color: var(--red); background: #FDF2F0; }
.field .err { display: none; font-size: 13px; font-weight: 600; color: var(--red); }
.field.invalid .err { display: block; }

.form-actions { display: flex; flex-direction: column; gap: 12px; margin-top: 4px; }
.form-actions .btn { align-self: stretch; }
.form-actions .btn[disabled] { opacity: .65; cursor: progress; }

.form-success { display: none; flex-direction: column; gap: 16px; align-items: center; padding: 40px 22px; text-align: center; }
.form-success.show { display: flex; }
.form-success .ok-ic { width: 74px; height: 74px; display: grid; place-items: center; border-radius: var(--r-round); background: var(--teal-soft); color: var(--teal); box-shadow: 3px 4px 0 var(--pencil); position: relative; }
.form-success .ok-ic::after { content: ""; position: absolute; inset: 0; border: 2px solid var(--pencil); border-radius: inherit; filter: url(#pencil); pointer-events: none; }
.form-success .ok-ic .ic { width: 34px; height: 34px; stroke-width: 3; }
.form-success h2 { font-size: clamp(26px, 3vw, 34px); }
.form-success p { max-width: 460px; color: var(--muted); }
.form-card.sent > form { display: none; }
.form-card > form { display: flex; flex-direction: column; gap: 26px; }

/* Lưới lịch rảnh: Thứ 2 → Chủ nhật × Chiều / Tối */
.slot-grid { border-collapse: collapse; font-size: 14px; }
.slot-grid th { padding: 6px 10px; font-weight: 600; text-align: left; }
.slot-grid thead th { font-family: var(--hand); font-size: 17px; font-weight: 400; color: var(--muted); text-align: center; }
.slot-grid td { padding: 0; text-align: center; }
.slot-grid tbody tr + tr > * { border-top: 1.5px dashed rgba(29, 42, 45, .18); }
/* Bấm vào cả ô (ít nhất 64 × 44px), không chỉ ô vuông nhỏ. */
.slot-grid label { display: flex; align-items: center; justify-content: center; min-width: 72px; min-height: 44px; cursor: pointer; }
.slot-grid input { width: 22px; height: 22px; accent-color: var(--teal); cursor: pointer; }
.field > .consent { font-weight: 400; }
.consent a { color: var(--teal); font-weight: 700; }
.sr-only, .trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.form-err { margin: 0; color: var(--red); font-weight: 600; }
.form-success .btn { align-self: stretch; }

/* Ô không bắt buộc gom vào một mục thu gọn để form ngắn hơn trên điện thoại. */
.more-fields { padding-top: 22px; border-top: 1.5px dashed rgba(29, 42, 45, .25); }
.more-fields summary { cursor: pointer; font-family: var(--hand); font-size: 20px; line-height: 1.3; color: var(--teal); }
.more-fields summary .hint { display: block; font-family: "Be Vietnam Pro", system-ui, sans-serif; font-size: 13px; color: var(--faint); }
.more-fields[open] summary { margin-bottom: 16px; }

.photo-preview { width: 96px; height: 96px; object-fit: cover; border: 2.5px solid var(--pencil); border-radius: var(--r-round); box-shadow: 3px 3px 0 var(--pencil); }

/* Mã truy cập trên màn hình gửi thành công */
.code-box { align-self: stretch; display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border: 2px dashed var(--pencil); border-radius: var(--r-box); background: var(--amber-soft); }
.code-box span { font-size: 13px; font-weight: 700; color: var(--muted); }
.code-box b { font-size: 22px; letter-spacing: .08em; white-space: nowrap; }
.code-box small { font-size: 13px; color: var(--muted); }

@media (max-width: 959px) {
  .form-hero { padding-top: 24px; }
  .form-hero .wrap { gap: 28px; }
  .form-intro { gap: 12px; }
  .form-intro .checks { gap: 6px; }
  .form-intro .checks li { font-size: 15px; }
}

@media (min-width: 960px) {
  .form-hero { padding: 72px 0 112px; }
  .form-hero .wrap { grid-template-columns: minmax(0, 460fr) minmax(0, 640fr); gap: 64px; align-items: start; }
  .form-card { padding: 44px 44px 40px; gap: 30px; }
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
  .form-actions { flex-direction: row; align-items: center; }
  .form-actions .btn { align-self: auto; min-width: 260px; }
}