/* ============================================================
   Buchung — Checkout page
   ============================================================ */

.page-buchung {
  background: var(--surface);
}

.checkout {
  padding: 120px 0 80px;
  min-height: 100dvh;
}

.checkout__container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--pad);
}

.checkout__head {
  text-align: center;
  margin-bottom: clamp(40px, 5vw, 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.checkout__h1 {
  font-size: clamp(36px, 5vw, 60px);
  letter-spacing: -0.035em;
  line-height: 1.04;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.checkout__sub {
  font-size: clamp(16px, 1.2vw, 19px);
  color: var(--muted);
  margin: 0;
  max-width: 56ch;
  line-height: 1.5;
}

.checkout__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(20px, 2.4vw, 32px);
  align-items: start;
}

/* ============ FORM ============ */
.checkout__form {
  background: var(--card);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r-card-lg);
  padding: clamp(28px, 3vw, 44px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 14px 32px -20px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 3.6vw, 48px);
}

.form-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-section--legal {
  gap: 14px;
}

.form-section__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 4px;
}

.form-section__num {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--muted);
  padding: 4px 8px;
  background: var(--surface);
  border-radius: 6px;
}

.form-section__title {
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin: 0;
}

.form-row {
  display: grid;
  gap: 12px;
}
.form-row--2 { grid-template-columns: 1fr 1fr; }
.form-row--plz-ort { grid-template-columns: 140px 1fr; }

@media (max-width: 640px) {
  .form-row--2,
  .form-row--plz-ort {
    grid-template-columns: 1fr;
  }
}

.checkout__form .field { display: flex; flex-direction: column; gap: 6px; }
.checkout__form .field label {
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--ink);
  text-transform: none;
}
.checkout__form .field .optional,
.checkout__form .field .hint {
  font-weight: 400;
  color: var(--muted-2);
  font-size: 12.5px;
}
.checkout__form .field input,
.checkout__form .field textarea {
  font: inherit;
  font-family: var(--sans);
  font-size: 15px;
  background: var(--card);
  border: 1px solid var(--hairline-2);
  border-radius: 10px;
  color: var(--ink);
  padding: 12px 14px;
  transition: border-color 200ms var(--ease-out), background 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
  resize: vertical;
}
.checkout__form .field input::placeholder,
.checkout__form .field textarea::placeholder {
  color: var(--muted-2);
}
.checkout__form .field input:focus,
.checkout__form .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(10, 82, 224, 0.12);
}

/* Honeypot — visually hidden */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ============ CHECKBOXES ============ */
.check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 12px;
  padding: 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  cursor: pointer;
  transition: border-color 200ms var(--ease-out), background 200ms var(--ease-out);
  align-items: start;
}
.check:hover {
  border-color: var(--hairline-2);
  background: var(--surface-2);
}
.check input {
  appearance: none;
  -webkit-appearance: none;
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.check__mark {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: var(--card);
  border: 1.5px solid var(--hairline-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  transition: background 200ms var(--ease-out), border-color 200ms var(--ease-out), color 200ms var(--ease-out);
  margin-top: 2px;
  flex-shrink: 0;
}
.check__mark svg { width: 12px; height: 12px; }
.check input:checked + .check__mark {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.check input:focus-visible + .check__mark {
  box-shadow: 0 0 0 4px rgba(10, 82, 224, 0.18);
}
.check__text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
}
.check__text strong { color: var(--ink); font-weight: 600; }
.check__text a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-decoration-color: rgba(10, 82, 224, 0.4);
  transition: text-decoration-color 200ms var(--ease-out);
}
.check__text a:hover { text-decoration-color: var(--accent); }

/* ============ SUBMIT ============ */
.form-submit {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid var(--hairline);
  padding-top: 28px;
}
.form-submit__note {
  font-size: 12.5px;
  color: var(--muted);
  margin: 0;
  text-align: center;
}
.form-error {
  background: rgba(255, 99, 71, 0.08);
  border: 1px solid rgba(255, 99, 71, 0.3);
  color: #c0392b;
  font-size: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  margin: 0;
  text-align: center;
}

#submit-btn[data-loading="true"] {
  opacity: 0.7;
  cursor: progress;
}
#submit-btn[data-loading="true"] .btn__icon svg {
  animation: rotate 1s linear infinite;
}
@keyframes rotate {
  to { transform: rotate(360deg); }
}

/* ============ SIDEBAR ============ */
.checkout__aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 96px;
}

.summary {
  background: var(--card);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r-card-lg);
  padding: clamp(24px, 2.6vw, 32px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 10px 24px -16px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.summary .eyebrow {
  margin-bottom: 4px;
}
.summary__name {
  font-size: clamp(22px, 2vw, 28px);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.12;
  margin: 0;
  color: var(--ink);
}
.summary__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.summary__list li {
  font-size: 14px;
  color: var(--ink-2);
  padding-left: 22px;
  position: relative;
  line-height: 1.45;
}
.summary__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 1px;
  background: var(--accent);
}
.summary__price {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.summary__line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--muted);
  padding: 2px 0;
}
.summary__line s { color: var(--muted-2); }
.summary__line--accent {
  color: var(--accent-text);
  font-weight: 500;
}
.summary__line--total {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
}
.summary__vat {
  font-size: 12px;
  color: var(--muted);
  margin: 4px 0 0;
  text-align: right;
}

.trust {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.trust__row {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
  align-items: center;
}
.trust__icon {
  color: var(--accent);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.trust__icon svg { width: 18px; height: 18px; }
.trust__row p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.45;
}

@media (max-width: 880px) {
  .checkout__grid {
    grid-template-columns: 1fr;
  }
  .checkout__aside {
    position: static;
    order: -1;
  }
}

/* ============ SUCCESS ============ */
.success {
  max-width: 560px;
  margin: 60px auto;
  padding: 0 var(--pad);
}
.success__inner {
  background: var(--card);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--r-card-lg);
  padding: clamp(40px, 4vw, 56px);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 14px 32px -20px rgba(0, 0, 0, 0.1);
}
.success__icon {
  color: var(--accent);
  width: 56px;
  height: 56px;
  background: var(--accent-soft);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.success__icon svg { width: 32px; height: 32px; }
.success__h {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
  letter-spacing: -0.028em;
  margin: 0;
  color: var(--ink);
}
.success__p {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0 0 12px;
  max-width: 44ch;
}