/* =========================================
   Terakoya Systems
   Product Page
========================================= */

.product-navigation {
  flex-wrap: wrap;
}

.product-hero {
  padding:
    105px
    0
    95px;

  overflow: hidden;

  background:
    radial-gradient(
      circle at 80% 14%,
      rgba(255, 188, 110, 0.26),
      transparent 34%
    ),
    linear-gradient(
      180deg,
      #ffffff,
      #fbfcff
    );
}

.product-hero-grid {
  display: grid;

  grid-template-columns:
    minmax(0, 1.05fr)
    minmax(360px, 0.95fr);

  align-items: center;

  gap: 70px;
}

.product-title-row {
  margin-top: 18px;

  display: flex;
  align-items: center;

  gap: 20px;
}

.product-page-icon {
  width: 78px;
  height: 78px;

  flex: 0 0 auto;

  display: grid;
  place-items: center;

  border-radius: 22px;

  color: #ffffff;

  background:
    linear-gradient(
      135deg,
      var(--primary),
      #ffbd70
    );

  box-shadow:
    0
    16px
    32px
    rgba(255, 157, 61, 0.22);

  font-weight: 900;
}

.product-version {
  margin: 0;

  color: var(--primary-dark);

  font-size: 0.78rem;
  font-weight: 800;

  letter-spacing: 0.1em;

  text-transform: uppercase;
}

.product-title-row h1 {
  margin: 2px 0 0;

  font-size: clamp(
    2.5rem,
    5.5vw,
    4.6rem
  );

  line-height: 1.06;

  letter-spacing: -0.055em;
}

.product-lead {
  max-width: 680px;

  margin:
    30px
    0
    0;

  color: var(--text-muted);

  font-size: 1.08rem;
}

.product-hero-actions {
  margin-top: 32px;

  display: flex;
  flex-wrap: wrap;

  gap: 12px;
}

.product-note {
  margin:
    18px
    0
    0;

  color: #7a8291;

  font-size: 0.88rem;
}


/* =========================================
   Product preview
========================================= */

.product-preview-card {
  overflow: hidden;

  border:
    1px
    solid
    rgba(255, 255, 255, 0.9);

  border-radius: 24px;

  background: #ffffff;

  box-shadow: var(--shadow-medium);

  transform: rotate(1deg);
}

.preview-toolbar {
  min-height: 52px;

  padding:
    0
    18px;

  display: flex;
  align-items: center;

  gap: 7px;

  border-bottom:
    1px
    solid
    var(--border);

  background: #f4f6f9;
}

.preview-toolbar span {
  width: 10px;
  height: 10px;

  border-radius: 50%;

  background: #d0d5dd;
}

.preview-toolbar strong {
  margin-left: 10px;

  color: #667085;

  font-size: 0.76rem;
}

.preview-body {
  min-height: 390px;

  display: grid;

  grid-template-columns:
    74px
    1fr;
}

.preview-sidebar {
  padding-top: 30px;

  display: flex;
  align-items: center;
  flex-direction: column;

  gap: 14px;

  background: #fafbfc;

  border-right:
    1px
    solid
    var(--border);
}

.preview-step {
  width: 34px;
  height: 34px;

  display: grid;
  place-items: center;

  border-radius: 50%;

  color: #98a2b3;
  background: #eaecf0;

  font-size: 0.76rem;
  font-weight: 800;
}

.preview-step-active {
  color: #ffffff;
  background: var(--primary);
}

.preview-content {
  padding: 38px;
}

.preview-kicker {
  margin:
    0
    0
    15px;

  color: var(--primary-dark);

  font-size: 0.7rem;
  font-weight: 900;

  letter-spacing: 0.12em;
}

.preview-heading {
  width: 74%;
  height: 22px;

  margin-bottom: 14px;

  border-radius: 999px;

  background: #263043;
}

.preview-line {
  width: 58%;
  height: 10px;

  margin-bottom: 9px;

  border-radius: 999px;

  background: #e7eaf0;
}

.preview-line-long {
  width: 88%;
}

.preview-dropzone {
  height: 105px;

  margin-top: 28px;

  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;

  gap: 4px;

  border:
    2px
    dashed
    #d8dde6;

  border-radius: 16px;

  color: #667085;

  background: #fafbfc;
}

.preview-dropzone span {
  color: var(--primary-dark);

  font-size: 1.3rem;
  font-weight: 900;
}

.preview-dropzone strong {
  font-size: 0.8rem;
}

.preview-options {
  margin-top: 18px;

  display: grid;

  grid-template-columns:
    repeat(2, 1fr);

  gap: 10px;
}

.preview-options div {
  height: 45px;

  border:
    1px
    solid
    var(--border);

  border-radius: 12px;

  background: #ffffff;
}

.preview-button {
  width: 48%;
  height: 42px;

  margin:
    22px
    0
    0
    auto;

  border-radius: 999px;

  background: var(--primary);
}


/* =========================================
   Detailed features
========================================= */

.feature-detail-grid {
  display: grid;

  grid-template-columns:
    repeat(3, minmax(0, 1fr));

  gap: 18px;
}

.feature-detail-card {
  min-height: 260px;

  padding: 28px;

  border:
    1px
    solid
    var(--border);

  border-radius: var(--radius-medium);

  background: #ffffff;

  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.feature-detail-card:hover {
  transform: translateY(-3px);

  box-shadow: var(--shadow-small);
}

.feature-detail-number {
  color: var(--primary-dark);

  font-size: 0.74rem;
  font-weight: 900;

  letter-spacing: 0.12em;
}

.feature-detail-card h3 {
  margin:
    54px
    0
    12px;

  font-size: 1.25rem;
}

.feature-detail-card p {
  margin: 0;

  color: var(--text-muted);
}


/* =========================================
   Use cases
========================================= */

.use-case-grid {
  display: grid;

  grid-template-columns:
    minmax(0, 0.75fr)
    minmax(0, 1.25fr);

  gap: 80px;
}

.use-case-grid h2 {
  margin:
    8px
    0
    0;

  font-size: clamp(
    2rem,
    4.4vw,
    3.4rem
  );

  letter-spacing: -0.04em;
}

.use-case-list {
  border-top:
    1px
    solid
    var(--border);
}

.use-case-list article {
  padding:
    24px
    0;

  display: grid;

  grid-template-columns:
    55px
    1fr;

  gap: 20px;

  border-bottom:
    1px
    solid
    var(--border);
}

.use-case-list article > span {
  color: var(--primary-dark);

  font-size: 0.76rem;
  font-weight: 900;
}

.use-case-list h3 {
  margin:
    0
    0
    5px;

  font-size: 1.08rem;
}

.use-case-list p {
  margin: 0;

  color: var(--text-muted);
}


/* =========================================
   Requirements
========================================= */

.requirements-card {
  max-width: 820px;

  padding: 30px;

  border:
    1px
    solid
    var(--border);

  border-radius: var(--radius-medium);

  background: #ffffff;

  box-shadow: var(--shadow-small);
}

.requirements-card dl {
  margin: 0;
}

.requirements-card dl > div {
  padding:
    16px
    0;

  display: grid;

  grid-template-columns:
    190px
    1fr;

  gap: 20px;

  border-bottom:
    1px
    solid
    var(--border);
}

.requirements-card dl > div:first-child {
  padding-top: 0;
}

.requirements-card dt {
  color: #667085;

  font-weight: 700;
}

.requirements-card dd {
  margin: 0;

  font-weight: 700;
}

.requirements-card > p {
  margin:
    22px
    0
    0;

  color: var(--text-muted);

  font-size: 0.86rem;
}


/* =========================================
   Download
========================================= */

.download-section {
  padding-top: 30px;
}

.download-card {
  padding: 45px;

  display: grid;

  grid-template-columns:
    minmax(0, 1fr)
    auto;

  align-items: center;

  gap: 50px;

  border-radius: var(--radius-large);

  color: #ffffff;

  background:
    linear-gradient(
      135deg,
      #111827,
      #1d2939
    );
}

.download-card h2 {
  margin:
    6px
    0
    10px;

  font-size: clamp(
    2rem,
    4vw,
    3rem
  );
}

.download-card p {
  max-width: 680px;

  margin: 0;

  color: #bdc5d2;
}

.download-action {
  min-width: 230px;

  display: flex;
  align-items: stretch;
  flex-direction: column;

  gap: 10px;
}

.download-button {
  width: 100%;
}

.download-action small {
  max-width: 250px;

  color: #98a2b3;

  text-align: center;
}


/* =========================================
   Bottom navigation
========================================= */

.product-bottom-nav {
  padding:
    38px
    0
    78px;
}

.product-bottom-nav-inner {
  border-top:
    1px
    solid
    var(--border);

  padding-top: 30px;
}

.back-home-link {
  color: #475467;

  font-weight: 700;

  transition:
    color 0.2s ease;
}

.back-home-link:hover {
  color: var(--primary-dark);
}


/* =========================================
   Responsive
========================================= */

@media (max-width: 960px) {

  .product-hero-grid,
  .use-case-grid {
    grid-template-columns: 1fr;

    gap: 48px;
  }

  .feature-detail-grid {
    grid-template-columns:
      repeat(2, minmax(0, 1fr));
  }

  .product-preview-card {
    max-width: 650px;
  }

  .download-card {
    grid-template-columns: 1fr;
  }

  .download-action {
    max-width: 320px;
  }

}


@media (max-width: 720px) {

  .product-navigation {
    display: none;
  }

  .product-hero {
    padding:
      70px
      0
      65px;
  }

  .product-title-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .product-page-icon {
    width: 64px;
    height: 64px;

    border-radius: 18px;
  }

  .product-hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .product-hero-actions .button {
    width: 100%;
  }

  .preview-body {
    grid-template-columns:
      58px
      1fr;
  }

  .preview-content {
    padding: 24px;
  }

  .feature-detail-grid {
    grid-template-columns: 1fr;
  }

  .feature-detail-card {
    min-height: 230px;
  }

  .requirements-card dl > div {
    grid-template-columns: 1fr;

    gap: 5px;
  }

  .download-card {
    padding: 30px 24px;
  }

}


@media (max-width: 420px) {

  .preview-content {
    padding: 20px;
  }

  .preview-options {
    grid-template-columns: 1fr;
  }

  .preview-button {
    width: 70%;
  }

}

/* =========================================
   Ver.1.1.3 product page additions
========================================= */
.product-catch {
  margin: 30px 0 0;
  max-width: 700px;
  color: var(--text);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 850;
  line-height: 1.45;
  letter-spacing: -0.025em;
}

.hero-meta {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-meta span {
  padding: 6px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: #667085;
  background: rgba(255, 255, 255, 0.8);
  font-size: 0.76rem;
  font-weight: 750;
}

.product-preview-real {
  transform: rotate(0.7deg);
}

.app-mock-body {
  padding: 26px;
  background: #fbfcfe;
}

.app-mock-step {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 0 10px;
}

.app-mock-step b {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  color: #fff;
  background: var(--primary);
  font-size: 0.78rem;
}

.app-mock-step div {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.app-mock-step small {
  color: var(--primary-dark);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.app-mock-step strong {
  font-size: 0.88rem;
}

.app-mock-panel,
.app-mock-result {
  margin: 0 0 20px 46px;
}

.app-mock-drop {
  min-height: 76px;
  padding: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2px;
  border: 2px dashed #d9dee8;
  border-radius: 14px;
  color: var(--primary-dark);
  background: #fff;
  font-size: 1.15rem;
}

.app-mock-drop strong {
  color: #475467;
  font-size: 0.8rem;
}

.app-mock-drop small {
  color: #98a2b3;
  font-size: 0.66rem;
}

.app-mock-options {
  margin: 0 0 20px 46px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}

.app-mock-options span {
  padding: 8px 7px;
  border: 1px solid #e4e7ec;
  border-radius: 9px;
  color: #667085;
  background: #fff;
  font-size: 0.62rem;
  font-weight: 700;
  text-align: center;
}

.app-mock-options span:first-child {
  border-color: #ffc98f;
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.app-mock-result {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.app-mock-result div {
  padding: 12px;
  border: 1px solid #e4e7ec;
  border-radius: 12px;
  background: #fff;
}

.app-mock-result small,
.app-mock-result strong {
  display: block;
}

.app-mock-result small {
  color: #98a2b3;
  font-size: 0.62rem;
}

.app-mock-result strong {
  margin-top: 2px;
  color: #344054;
  font-size: 0.78rem;
}

.app-mock-button {
  margin: 4px 0 0 46px;
  padding: 12px 16px;
  border-radius: 12px;
  color: #fff;
  background: var(--primary);
  font-size: 0.76rem;
  font-weight: 850;
  text-align: center;
}

.problem-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.problem-grid > div {
  padding: 28px 28px;
  border-right: 1px solid var(--border);
}

.problem-grid > div:first-child { padding-left: 0; }
.problem-grid > div:last-child { padding-right: 0; border-right: 0; }

.problem-grid strong,
.problem-grid span {
  display: block;
}

.problem-grid strong {
  margin-bottom: 5px;
  font-size: 0.95rem;
}

.problem-grid span {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.feature-detail-grid-rich {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-detail-grid-rich .feature-detail-card {
  min-height: 245px;
}

.feature-card-primary {
  border-color: #ffd3a7;
  background: linear-gradient(180deg, #fff9f2, #fff);
}

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

.workflow-grid article {
  position: relative;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
  background: #fff;
}

.workflow-grid article:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -17px;
  z-index: 2;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--primary-dark);
  background: #fff;
  font-weight: 900;
}

.workflow-grid span {
  color: var(--primary-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.workflow-grid h3 {
  margin: 34px 0 9px;
}

.workflow-grid p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.section-dark-info {
  color: #fff;
  background: linear-gradient(135deg, #111827, #1d2939);
}

.privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
  gap: 80px;
}

.section-label-light { color: #ffbd70; }

.privacy-grid h2 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.privacy-copy p {
  margin-top: 0;
  color: #d0d5dd;
}

.privacy-copy .privacy-note {
  margin-top: 18px;
  color: #98a2b3;
  font-size: 0.82rem;
}

.requirements-card-wide { max-width: 980px; }

.release-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.release-title-row h2 { margin-right: 0; }

.release-badge {
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  color: #ffcf9e;
  background: rgba(255,255,255,0.06);
  font-size: 0.72rem;
  font-weight: 800;
}

.download-card .release-detail {
  margin-top: 10px;
  color: #98a2b3;
  font-size: 0.86rem;
}

@media (max-width: 1080px) {
  .feature-detail-grid-rich { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow-grid article::after { display: none; }
}

@media (max-width: 760px) {
  .problem-grid,
  .privacy-grid { grid-template-columns: 1fr; }

  .problem-grid > div,
  .problem-grid > div:first-child,
  .problem-grid > div:last-child {
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .problem-grid > div:last-child { border-bottom: 0; }
  .privacy-grid { gap: 32px; }
  .app-mock-body { padding: 18px; }
  .app-mock-options { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .feature-detail-grid-rich,
  .workflow-grid { grid-template-columns: 1fr; }
  .app-mock-result { grid-template-columns: 1fr; }
  .requirements-card dl > div { grid-template-columns: 1fr; gap: 4px; }
}