/* ============================================================
   AESTHETIC TRENDS / BIOSET ACADEMY — CHECKOUT
   Paleta Mocha — Mobile-first — Premium
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --mocha-900: #2C1810;
  --mocha-800: #4A2C1A;
  --mocha-700: #6B4226;
  --mocha-600: #8B5E3C;
  --mocha-500: #A87850;
  --mocha-400: #C49A72;
  --mocha-300: #DBBFA0;
  --mocha-200: #EDD9C5;
  --mocha-100: #F5EAD9;
  --mocha-50:  #FAF4EC;

  --cream:     #FDFAF6;
  --cream-mid: #F5EFE6;
  --white:     #FFFFFF;

  --text-900:  #1E0F07;
  --text-700:  #4A2C1A;
  --text-500:  #7A5540;
  --text-300:  #B89080;

  --red:       #C0392B;
  --red-pale:  #FEF2F0;

  --green:     #166534;
  --green-mid: #15803D;

  --shadow-sm: 0 2px 8px rgba(74,44,26,.07);
  --shadow-md: 0 4px 20px rgba(74,44,26,.10);

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;
  --transition: .18s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--cream);
  color: var(--text-900);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ──────────────────────────────────────────────────── */
.header {
  background: var(--white);
  padding: .7rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--mocha-100);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-img {
  height: 36px;
  width: auto;
  display: block;
}
.secure-badge {
  display: flex;
  align-items: center;
  gap: .35rem;
  font-size: .73rem;
  font-weight: 600;
  color: var(--text-500);
  letter-spacing: .1px;
}
.secure-badge svg { width: 12px; height: 12px; flex-shrink: 0; }

/* ── Progress bar ────────────────────────────────────────────── */
.progress-bar {
  background: var(--white);
  border-bottom: 1px solid var(--mocha-100);
  padding: .8rem 1.5rem;
}
.progress-track {
  max-width: 380px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
}
.dot-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--mocha-100);
  color: var(--text-300);
  font-weight: 600;
  font-size: .78rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.step-dot.active .dot-num {
  background: var(--mocha-700);
  color: var(--white);
  border-color: var(--mocha-700);
  box-shadow: 0 0 0 3px rgba(107,66,38,.12);
}
.step-dot.done .dot-num {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.step-dot.done .dot-num::before { content: '✓'; font-size: .8rem; }
.step-dot.done .dot-num-inner { display: none; }
.dot-label {
  font-size: .68rem;
  color: var(--text-300);
  white-space: nowrap;
  font-weight: 500;
  letter-spacing: .1px;
}
.step-dot.active .dot-label { color: var(--mocha-700); font-weight: 700; }
.step-dot.done .dot-label { color: var(--green-mid); }
.step-line {
  flex: 1;
  height: 1.5px;
  background: var(--mocha-100);
  min-width: 40px;
  margin: 0 .4rem;
  margin-bottom: 1rem;
  transition: background var(--transition);
}
.step-line.done { background: var(--green); }

/* ── Main layout ─────────────────────────────────────────────── */
.main {
  max-width: 1100px;
  margin: 1.75rem auto;
  padding: 0 1rem;
}
.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 768px) {
  .checkout-grid { grid-template-columns: 1fr; }
  .summary-col { order: -1; }
  .main { margin: 1rem auto; }
}

/* ── Step panels ─────────────────────────────────────────────── */
.step-panel {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--mocha-100);
  display: none;
}
.step-panel.active { display: block; }
.step-panel.active { animation: fadeUp .2s ease both; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}

.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-900);
  margin-bottom: 1.4rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--mocha-100);
  letter-spacing: -.15px;
}

/* ── Fields ──────────────────────────────────────────────────── */
.field {
  display: flex;
  flex-direction: column;
  gap: .28rem;
  margin-bottom: .95rem;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .85rem;
}
@media (max-width: 480px) {
  .field-row { grid-template-columns: 1fr; gap: .5rem; }
}
.field-sm { max-width: 160px; }
.field-lg { flex: 1; }

label {
  font-size: .73rem;
  font-weight: 600;
  color: #555;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.label-optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--text-300);
  font-size: .7rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: .68rem .95rem;
  border: 1.5px solid var(--mocha-200);
  border-radius: var(--radius-sm);
  font-size: .93rem;
  font-family: inherit;
  color: var(--text-900);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--mocha-600);
  box-shadow: 0 0 0 3px rgba(107,66,38,.08);
}
input.error, select.error {
  border-color: var(--red);
}
input::placeholder { color: #aaa; }
input:disabled { background: var(--cream-mid); cursor: not-allowed; }

.field-error {
  font-size: .73rem;
  color: var(--red);
  font-weight: 500;
  display: none;
}
.field-error.visible { display: block; }

/* ── Security note ───────────────────────────────────────────── */
.form-security-note {
  margin-top: .75rem;
  font-size: .72rem;
  color: var(--text-300);
  text-align: center;
  letter-spacing: .1px;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-next {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  background: var(--mocha-700);
  color: var(--white);
  font-weight: 600;
  font-size: .93rem;
  padding: .78rem 2rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: .1px;
  font-family: inherit;
}
.btn-next:hover {
  background: var(--mocha-800);
  box-shadow: 0 3px 10px rgba(74,44,26,.2);
}
.btn-next:active { transform: scale(.98); }

.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  width: 100%;
  background: var(--mocha-700);
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  padding: .95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  letter-spacing: .1px;
  font-family: inherit;
  box-shadow: 0 3px 12px rgba(74,44,26,.18);
}
.btn-submit:hover {
  background: var(--mocha-800);
  box-shadow: 0 5px 16px rgba(74,44,26,.25);
  transform: translateY(-1px);
}
.btn-submit:active { transform: translateY(0) scale(.99); }
.btn-submit:disabled {
  background: var(--mocha-300);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  background: none;
  border: 1.5px solid var(--mocha-200);
  color: var(--text-500);
  padding: .73rem 1.1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
  font-family: inherit;
  transition: all var(--transition);
}
.btn-back:hover {
  border-color: var(--mocha-400);
  color: var(--mocha-700);
}

.step-nav {
  display: flex;
  gap: .75rem;
  align-items: center;
  margin-top: 1.4rem;
}
.step-nav .btn-next,
.step-nav .btn-submit { flex: 1; justify-content: center; }

/* ── Coupon ──────────────────────────────────────────────────── */
.coupon-block {
  margin: 1rem 0;
  padding: .95rem;
  background: var(--cream);
  border: 1.5px dashed var(--mocha-200);
  border-radius: var(--radius-sm);
}
.coupon-block label {
  display: block;
  margin-bottom: .4rem;
}
.coupon-row { display: flex; gap: .5rem; }
.coupon-row input {
  flex: 1;
  text-transform: uppercase;
  letter-spacing: .5px;
  font-size: .88rem;
}
.btn-coupon {
  white-space: nowrap;
  background: var(--mocha-700);
  color: var(--white);
  border: none;
  padding: .65rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .83rem;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition);
}
.btn-coupon:hover { background: var(--mocha-800); }
.btn-coupon:disabled { background: var(--mocha-300); cursor: not-allowed; }
.coupon-msg {
  margin-top: .45rem;
  font-size: .8rem;
  font-weight: 600;
}
.coupon-msg.success { color: var(--green); }
.coupon-msg.error { color: var(--red); }

/* ── Payment methods ─────────────────────────────────────────── */
.payment-methods {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: .6rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 480px) {
  .payment-methods { grid-template-columns: 1fr; }
}
.method-card {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem .85rem;
  border: 1.5px solid var(--mocha-100);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
  background: var(--cream);
  position: relative;
}
.method-card input { display: none; }
.method-card:hover { border-color: var(--mocha-300); background: var(--mocha-50); }
.method-card.active {
  border-color: var(--mocha-700);
  background: var(--mocha-50);
}
.method-icon-wrap {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  background: var(--mocha-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.method-icon-wrap svg { width: 15px; height: 15px; color: var(--mocha-700); }
.method-card.active .method-icon-wrap { background: var(--mocha-200); }
.method-info strong {
  display: block;
  font-size: .83rem;
  font-weight: 700;
  color: var(--text-900);
}
.method-info small { color: var(--text-300); font-size: .7rem; }

/* ── Card form ───────────────────────────────────────────────── */
.card-form {
  background: var(--cream);
  border: 1px solid var(--mocha-100);
  border-radius: var(--radius-sm);
  padding: 1.2rem;
  margin-bottom: 1rem;
}
.card-form.hidden { display: none; }
.card-number-wrap { position: relative; }
.card-brand-icon {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
}
.expiry-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem;
}

/* ── Error box ───────────────────────────────────────────────── */
.checkout-error {
  background: var(--red-pale);
  border: 1px solid #fecaca;
  color: var(--red);
  padding: .8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: .9rem;
}
.checkout-error.hidden { display: none; }

/* ── Spinner ─────────────────────────────────────────────────── */
.spinner {
  width: 17px;
  height: 17px;
  border: 2.5px solid rgba(255,255,255,.35);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: inline-block;
}
.spinner.hidden { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.spinner-inline {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--mocha-200);
  border-top-color: var(--mocha-600);
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
  margin-right: .35rem;
}

/* ── PIX result ──────────────────────────────────────────────── */
.pix-hint {
  color: var(--text-500);
  margin-bottom: 1.1rem;
  font-size: .9rem;
}
.pix-qr-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1.1rem;
}
.pix-qr-img {
  width: 200px;
  height: 200px;
  border: 2px solid var(--mocha-200);
  border-radius: var(--radius);
  padding: .5rem;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.pix-copy-wrap { margin-bottom: 1rem; }
.pix-payload {
  width: 100%;
  font-size: .7rem;
  font-family: monospace;
  color: var(--text-500);
  background: var(--cream);
  border: 1px solid var(--mocha-100);
  border-radius: var(--radius-sm);
  padding: .6rem;
  resize: none;
  margin-bottom: .45rem;
}
.btn-copy {
  background: var(--mocha-50);
  color: var(--mocha-700);
  border: 1.5px solid var(--mocha-200);
  padding: .52rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .82rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-copy:hover { background: var(--mocha-100); border-color: var(--mocha-400); }
.btn-copy-sm { padding: .52rem .75rem; }
.pix-status {
  text-align: center;
  color: var(--text-500);
  font-size: .85rem;
  padding: .75rem;
  background: var(--cream);
  border: 1px solid var(--mocha-100);
  border-radius: var(--radius-sm);
  margin: .9rem 0;
}
.pix-expire {
  text-align: center;
  font-size: .72rem;
  color: var(--text-300);
}

/* ── BOLETO result ───────────────────────────────────────────── */
.boleto-hint { color: var(--text-500); margin-bottom: 1.2rem; font-size: .9rem; }
.btn-boleto {
  display: block;
  text-align: center;
  background: var(--mocha-700);
  color: var(--white);
  padding: .9rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: .95rem;
  text-decoration: none;
  transition: background var(--transition);
  box-shadow: 0 2px 8px rgba(74,44,26,.15);
}
.btn-boleto:hover { background: var(--mocha-800); }
.boleto-barcode-row {
  display: flex;
  gap: .5rem;
  align-items: center;
}
.boleto-barcode {
  font-family: monospace;
  font-size: .75rem;
  color: var(--text-500);
  flex: 1;
}
.boleto-info-box {
  background: var(--mocha-50);
  border: 1px solid var(--mocha-100);
  color: var(--text-500);
  padding: .8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .8rem;
  margin-top: 1.1rem;
  line-height: 1.55;
}

/* ── Order Summary ───────────────────────────────────────────── */
.summary-col { position: sticky; top: 68px; }
.summary-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--mocha-100);
}
.summary-header {
  background: var(--mocha-900);
  padding: 1rem 1.25rem 1.1rem;
}
.summary-title {
  font-size: .7rem;
  font-weight: 600;
  color: var(--mocha-400);
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: .3rem;
}
.summary-product-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -.1px;
  line-height: 1.3;
}
.summary-tagline {
  font-size: .72rem;
  color: var(--mocha-400);
  margin-top: .2rem;
}
.summary-body { padding: 1.1rem 1.25rem; }
.summary-pricing { margin-bottom: .65rem; }
.summary-product-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: .35rem;
}
.summary-label { font-size: .83rem; color: var(--text-500); }
.summary-product-price {
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-300);
  text-decoration: line-through;
}
.summary-product-price.no-discount {
  text-decoration: none;
  color: var(--text-700);
}
.summary-coupon {
  display: flex;
  justify-content: space-between;
  font-size: .81rem;
  color: var(--green);
  font-weight: 600;
  margin-bottom: .35rem;
}
.summary-coupon.hidden { display: none; }
.summary-discount { color: var(--green); }
.summary-divider {
  height: 1px;
  background: var(--mocha-100);
  margin: .65rem 0;
}
.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-weight: 700;
  font-size: 1.1rem;
}
.summary-total-value { color: var(--mocha-700); }
.summary-installment {
  text-align: right;
  margin-top: .25rem;
  color: var(--text-300);
  font-size: .75rem;
}
.summary-installment.hidden { display: none; }

.summary-footer {
  display: flex;
  align-items: center;
  gap: .4rem;
  padding: .7rem 1.25rem;
  background: var(--mocha-50);
  border-top: 1px solid var(--mocha-100);
  font-size: .72rem;
  color: var(--text-300);
  font-weight: 500;
}
.summary-footer svg { width: 12px; height: 12px; flex-shrink: 0; color: var(--mocha-400); }

/* ── Mobile summary toggle ───────────────────────────────────── */
.summary-toggle {
  display: none;
  width: 100%;
  background: var(--mocha-900);
  color: var(--white);
  border: none;
  padding: .8rem 1.25rem;
  font-family: inherit;
  font-size: .88rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.summary-toggle-right {
  display: flex;
  align-items: center;
  gap: .35rem;
}
.summary-toggle-price { color: var(--mocha-300); font-weight: 700; }
.summary-toggle-arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.summary-toggle.open .summary-toggle-arrow { transform: rotate(180deg); }
.summary-collapsible { display: block; }

@media (max-width: 768px) {
  .summary-toggle { display: flex; }
  .summary-collapsible { display: none; }
  .summary-collapsible.open { display: block; }
  .summary-card { border-radius: var(--radius-lg); }
  .summary-header { display: none; }
}

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-300);
  font-size: .72rem;
}

/* ── Utility ─────────────────────────────────────────────────── */
.hidden { display: none !important; }

@media (max-width: 480px) {
  .step-panel { padding: 1.25rem; }
  .btn-submit { font-size: .95rem; padding: .9rem; }
  .summary-body { padding: .9rem 1.1rem; }
}

/* Prevent iOS Safari auto-zoom on input focus */
@media (max-width: 768px) {
  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="number"],
  textarea,
  select {
    font-size: 16px;
  }
}