.button--outline {
  color: var(--blue-900);
  border-color: var(--line);
  background: var(--white);
}

.ai-header {
  position: sticky;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 12px 32px rgba(3, 21, 48, .1);
}

.ai-nav {
  gap: 22px;
}

.mobile-home-button {
  display: none;
}

.ai-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: clamp(32px, 7vw, 86px);
  align-items: center;
  min-height: 90vh;
  padding: 120px clamp(20px, 6vw, 92px) 74px;
  color: var(--white);
  background:
    linear-gradient(123deg, rgba(6, 27, 61, .94), rgba(16, 72, 143, .86) 58%, rgba(36, 196, 232, .24)),
    url("../images/hero__bg.jpg") center / cover;
}

.ai-hero h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(38px, 5vw, 50px);
  line-height: 1.1;
}

.ai-hero p {
  max-width: 650px;
  color: rgba(255, 255, 255, .82);
  font-size: 17px;
}

.ai-hero__actions,
.ai-entry__actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.ai-hero__visual {
  display: grid;
  place-items: center;
}

.ai-pay-card {
  width: min(100%, 480px);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .12);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .22);
  backdrop-filter: blur(16px);
}

.ai-pay-card__top,
.checkout-secure,
.checkout-lang {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.ai-pay-card h2 {
  margin: 34px 0 0;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1;
}

.line-pay-logo {
  display: inline-block;
  width: auto;
  object-fit: contain;
  vertical-align: middle;
}

.line-pay-logo--hero {
  height: clamp(40px, 6vw, 72px);
  margin-top: 34px;
}

.line-pay-logo--route {
  height: 20px;
}

.line-pay-logo--summary {
  height: 20px;
}

.ai-pay-card__route {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 34px;
}

.ai-pay-card__route span:not(.material-symbols-rounded) {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--blue-950);
  background: var(--white);
  font-weight: 600;
}

.ai-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  color: var(--white);
  background: var(--blue-950);
  padding: 0 10%;
}

.ai-stats div {
  display: grid;
  gap: 6px;
  justify-items: center;
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, .14);
  text-align: center;
}

.ai-stats div:last-child {
  border-right: 0;
}

.ai-stats strong {
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1;
}

.ai-stats span {
  color: rgba(255, 255, 255, .72);
}

.ai-entry {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
  background:
    linear-gradient(322deg, rgba(255, 255, 255, .96), rgba(255, 255, 255, .84)),
    linear-gradient(46deg, rgba(36, 196, 232, .5), rgba(16, 72, 143, .38));
}

.ai-entry h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.18;
}

.ai-entry p:not(.eyebrow) {
  margin: 18px 0 0;
  color: var(--muted);
}

.ai-entry__panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ai-mini-card {
  min-height: 116px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 42px rgba(6, 27, 61, .08);
}

.ai-mini-card span,
.tool-card span {
  color: var(--muted);
  font-size: 16px;
  font-weight: 600;
}

.ai-mini-card strong {
  display: block;
  margin-top: 10px;
  color: var(--blue-950);
  font-size: 22px;
}

.ai-tools-section {
  background: var(--white);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.tool-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 16px 42px rgba(6, 27, 61, .08);
}

.tool-card__logo {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-800), var(--cyan-500));
  font-weight: 600;
}

.tool-card h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 22px;
}

.tool-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.tool-card strong {
  color: var(--blue-900);
  font-size: 18px;
}

.tool-card .button {
  width: 100%;
  margin-top: 4px;
  border: 0;
  cursor: pointer;
  font-size: 16px;
}

.ai-process {
  background:
    linear-gradient(180deg, rgba(223, 239, 255, .72), rgba(255, 255, 255, .4)),
    url("../images/services__bg.png") center / cover;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.process-list li {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 42px rgba(6, 27, 61, .08);
}

.process-list span {
  color: var(--cyan-500);
  font-size: 14px;
  font-weight: 600;
}

.process-list strong {
  display: block;
  margin-top: 10px;
  color: var(--blue-950);
  font-size: 22px;
}

.process-list p {
  margin: 10px 0 0;
  color: var(--muted);
}

.checkout-body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(243, 248, 253, .95), rgba(255, 255, 255, .9)),
    url("../images/services__bg.png") center / cover;
}

.checkout-shell,
.result-shell {
  display: grid;
  place-items: start center;
  min-height: 100vh;
  padding: clamp(20px, 5vw, 48px);
}

.checkout-panel {
  width: min(780px, 100%);
}

.checkout-topbar {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 18px;
  align-items: center;
  padding: 18px 0 34px;
}

.checkout-brand img {
  width: 190px;
}

.checkout-secure {
  color: var(--muted);
  font-weight: 600;
}

.checkout-lang {
  padding: 10px 16px;
  border-radius: 999px;
  background: #eef0ff;
  font-weight: 600;
}

.checkout-form {
  display: grid;
  gap: 18px;
}

.invoice-extra-fields {
  display: grid;
  gap: 18px;
}

.invoice-extra-fields[hidden] {
  display: none;
}

.purchase-card,
.result-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.purchase-card {
  padding: clamp(24px, 5vw, 30px);
  margin-bottom: 1rem;
}

.purchase-card p {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.purchase-card h1 {
  margin: 4px 0 22px;
  color: var(--blue-950);
  font-size: clamp(28px, 5vw, 30px);
  line-height: 1.1;
}

.purchase-card dl,
.result-summary {
  display: grid;
  gap: 16px;
  margin: 0;
}

.purchase-card dl div,
.result-summary div {
  display: grid;
  grid-template-columns: minmax(120px, .5fr) 1fr;
  gap: 18px;
  align-items: center;
}

.purchase-card dt,
.result-summary dt {
  color: var(--blue-950);
  font-weight: 500;
}

.purchase-card dd,
.result-summary dd {
  margin: 0;
  color: var(--ink);
  font-size: clamp(14px, 4vw, 16px);
  font-weight: 500;
}

.checkout-form label {
  display: grid;
  gap: 8px;
  color: var(--blue-950);
  font-weight: 500;
}

.checkout-form input,
.checkout-form select {
  width: 100%;
  min-height: 48px;
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--white);
  font: inherit;
  outline: 0;
}

.checkout-form input:focus,
.checkout-form select:focus {
  border-color: var(--cyan-500);
  box-shadow: 0 0 0 4px rgba(36, 196, 232, .16);
}

.invoice-select select {
  color: #271532;
  font-weight: 600;
}

.remember-row {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.remember-row input {
  width: 16px;
  min-height: 16px;
}

.checkout-note,
.policy-note {
  margin: 0;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.checkout-submit {
  width: 100%;
  min-height: 64px;
  border: 0;
  border-radius: 99px;
  cursor: pointer;
  font-size: 18px;
  max-width: 300px;
  margin: 8px auto;
}

.policy-note {
  text-align: center;
}

.result-panel {
  width: min(620px, 100%);
  padding: clamp(28px, 6vw, 46px);
  text-align: center;
}

.result-icon {
  color: #16a36a;
  font-size: 72px;
}

.result-panel h1 {
  margin: 0;
  color: var(--blue-950);
  font-size: clamp(28px, 5vw, 35px);
  line-height: 1.1;
}

.result-panel p:not(.eyebrow) {
  color: var(--muted);
}

.result-summary {
  margin: 24px auto;
  text-align: left;
  background: var(--soft);
  padding: 2rem;
  border-radius: 20px;
  font-size: 16px;
}

.result-actions {
  justify-content: center;
}

@media (max-width: 1080px) {
  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .ai-hero,
  .ai-entry {
    grid-template-columns: 1fr;
  }

  .process-list,
  .ai-stats {
    grid-template-columns: 1fr;
  }

  .ai-stats div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .14);
  }

  .ai-stats div:last-child {
    border-bottom: 0;
  }

  .checkout-topbar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .ai-nav {
    display: none;
  }

  .mobile-home-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    min-height: 38px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--blue-900);
    background: var(--white);
    box-shadow: 0 8px 22px rgba(6, 27, 61, .1);
    font-size: 14px;
    font-weight: 700;
  }

  .mobile-home-button .material-symbols-rounded {
    color: var(--cyan-500);
    font-size: 19px;
  }

  .ai-hero {
    padding-top: 92px;
  }

  .tool-grid,
  .ai-entry__panel {
    grid-template-columns: 1fr;
  }

  .purchase-card dl div,
  .result-summary div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}