/* ============================================
   BUSINESS INTERVIEW ASSOCIATION
   Design System & Styles
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-primary: #17324D;
  --color-primary-rgb: 23,50,77;
  --color-primary-light: #1e4060;
  --color-secondary: #3F7277;
  --color-secondary-light: #4a868b;
  --color-accent: #C49A55;
  --color-accent-light: #d4ad6e;
  --color-text: #252C33;
  --color-text-sub: #606A73;
  --color-white: #FFFFFF;
  --color-bg-warm: #F7F5F0;
  --color-bg-cool: #F2F5F6;
  --color-border: #D9DEE2;

  /* Typography */
  --font-sans: "Noto Sans JP", sans-serif;
  --font-serif: "Noto Serif JP", serif;
  --font-en: "Inter", sans-serif;

  /* Font Sizes */
  --fs-h1: clamp(1.75rem, 3.5vw, 2.75rem);
  --fs-h2: clamp(1.375rem, 2.5vw, 2rem);
  --fs-h3: clamp(1.0625rem, 1.25vw, 1.25rem);
  --fs-body: clamp(0.9375rem, 1vw, 1.125rem);
  --fs-small: clamp(0.8125rem, 0.9vw, 0.9375rem);
  --fs-label: 0.75rem;

  /* Line Heights */
  --lh-heading: 1.4;
  --lh-body: 1.9;

  /* Spacing */
  --section-py: clamp(3.5rem, 8vw, 8rem);
  --container-max: 1160px;
  --content-max: 720px;
  --container-px: clamp(1.25rem, 3vw, 2.5rem);

  /* Card */
  --card-radius: 12px;
  --card-padding: clamp(1.25rem, 2vw, 2rem);
  --card-shadow: 0 1px 3px rgba(0,0,0,0.04);
  --card-shadow-hover: 0 6px 16px rgba(0,0,0,0.08);

  /* Button */
  --btn-height: 54px;
  --btn-radius: 8px;
  --btn-px: 2rem;

  /* Transition */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --duration: 250ms;
}


/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

a:hover {
  color: var(--color-primary);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}


/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.container--narrow {
  max-width: var(--content-max);
}


/* --- Section --- */
.section {
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}

.section--warm {
  background: var(--color-bg-warm);
}

.section--cool {
  background: var(--color-bg-cool);
}

.section--navy {
  background: var(--color-primary);
  color: var(--color-white);
}


/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--lh-heading);
  color: var(--color-primary);
}

.section--navy h1,
.section--navy h2,
.section--navy h3 {
  color: var(--color-white);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

.heading-serif {
  font-family: var(--font-serif);
  font-weight: 600;
}

.section-label {
  font-family: var(--font-en);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 0.75rem;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin-bottom: 0;
}

.section-lead {
  color: var(--color-text-sub);
  max-width: var(--content-max);
  margin-bottom: 3rem;
}

.section-lead--center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.text-accent {
  color: var(--color-accent);
}

.text-secondary {
  color: var(--color-secondary);
}

.text-sub {
  color: var(--color-text-sub);
}

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

p + p {
  margin-top: 1em;
}


/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: var(--btn-height);
  padding: 0 var(--btn-px);
  border-radius: var(--btn-radius);
  font-size: 0.9375rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--duration) var(--ease);
  text-decoration: none;
  line-height: 1;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--white:hover {
  background: var(--color-bg-cool);
  color: var(--color-primary);
}

.btn--large {
  height: 60px;
  padding: 0 2.5rem;
  font-size: 1rem;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--full {
  width: 100%;
}

.btn .btn-arrow {
  display: inline-block;
  width: 0.65em;
  height: 0.65em;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--duration) var(--ease);
  vertical-align: middle;
}

.btn:hover .btn-arrow {
  transform: rotate(45deg) translateX(2px) translateY(-2px);
}


/* --- Cards --- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
}

.card--no-hover:hover {
  transform: none;
  box-shadow: var(--card-shadow);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--color-secondary);
  font-size: 1.5rem;
}

.card__number {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-text-sub);
  font-size: var(--fs-small);
  line-height: 1.8;
}


/* --- Card Grids --- */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

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

.card-grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

.card-grid--6 {
  grid-template-columns: repeat(3, 1fr);
}

@media (min-width: 1024px) {
  .card-grid--6 {
    grid-template-columns: repeat(6, 1fr);
  }
}

@media (max-width: 1023px) and (min-width: 768px) {
  .card-grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .card-grid--2,
  .card-grid--3,
  .card-grid--4 {
    grid-template-columns: 1fr;
  }

  .card-grid--6 {
    grid-template-columns: repeat(2, 1fr);
  }
}


/* --- Icon Card (compact) --- */
.icon-card {
  text-align: center;
  padding: 1.5rem 1rem;
}

.icon-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-cool);
  border-radius: 50%;
  color: var(--color-secondary);
  font-size: 1.25rem;
}

.icon-card__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-primary);
}


/* --- Definition Block --- */
.definition-block {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--card-radius);
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1.5rem, 4vw, 3rem);
  text-align: center;
}

.definition-block h3,
.definition-block p {
  color: var(--color-white);
}

.definition-block h3 {
  font-size: var(--fs-h3);
  line-height: 1.6;
  font-weight: 600;
}


/* --- Step Flow --- */
.step-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.step-flow::before {
  content: "";
  position: absolute;
  top: 36px;
  left: calc(12.5% + 0.75rem);
  right: calc(12.5% + 0.75rem);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.step-item {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-item__number {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-family: var(--font-en);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
}

.step-item__number span {
  font-size: 1.5rem;
  margin-top: 2px;
}

.step-item h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.step-item p {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  line-height: 1.7;
}

@media (max-width: 767px) {
  .step-flow {
    grid-template-columns: 1fr;
    gap: 0;
    padding-left: 2.5rem;
  }

  .step-flow::before {
    top: 0;
    bottom: 0;
    left: 16px;
    right: auto;
    width: 2px;
    height: 100%;
  }

  .step-item {
    text-align: left;
    padding: 0 0 2rem 1.5rem;
    position: relative;
  }

  .step-item::before {
    content: "";
    position: absolute;
    left: -2rem;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 2px var(--color-primary);
  }

  .step-item__number {
    display: none;
  }

  .step-item h3::before {
    content: attr(data-step);
    font-family: var(--font-en);
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 0.25rem;
  }
}


/* --- Production Timeline (9 steps) --- */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  counter-reset: timeline;
}

.timeline-item {
  position: relative;
  padding: var(--card-padding);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
}

.timeline-item__number {
  font-family: var(--font-en);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.timeline-item h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.timeline-item p {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
}

@media (max-width: 767px) {
  .timeline-grid {
    grid-template-columns: 1fr;
    gap: 0;
    padding-left: 2.5rem;
    position: relative;
  }

  .timeline-grid::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 16px;
    width: 2px;
    background: var(--color-border);
  }

  .timeline-item {
    border: none;
    border-radius: 0;
    background: transparent;
    padding: 0 0 2rem 1.5rem;
    position: relative;
  }

  .timeline-item::before {
    content: "";
    position: absolute;
    left: -2rem;
    top: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-secondary);
    border: 2px solid var(--color-white);
    box-shadow: 0 0 0 2px var(--color-secondary);
  }
}


/* --- Profile Card --- */
.profile-card {
  display: flex;
  gap: 2rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.profile-card__photo {
  flex-shrink: 0;
  width: 140px;
  height: 180px;
  border-radius: 8px;
  background: var(--color-bg-cool);
  overflow: hidden;
}

.profile-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-card__info {
  flex: 1;
}

.profile-card__org {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  margin-bottom: 0.25rem;
}

.profile-card__role {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  margin-bottom: 0.25rem;
}

.profile-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.profile-card__bio {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  line-height: 1.8;
}

.profile-card__company {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-small);
}

.profile-card__company-name {
  display: block;
  color: var(--color-text);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.profile-card__company-link {
  color: var(--color-primary);
  text-decoration: none;
  font-size: var(--fs-small);
  transition: opacity var(--duration) var(--ease);
}

.profile-card__company-link:hover {
  opacity: 0.7;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (max-width: 767px) {
  .profile-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .profile-card__photo {
    width: 120px;
    height: 155px;
  }

  .profile-grid {
    grid-template-columns: 1fr;
  }
}


/* --- News Card --- */
.news-card {
  display: block;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-border);
  transition: opacity var(--duration) var(--ease);
  text-decoration: none;
  color: inherit;
}

.news-card:first-child {
  border-top: 1px solid var(--color-border);
}

.news-card:hover {
  opacity: 0.7;
  color: inherit;
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.news-card__date {
  font-family: var(--font-en);
  font-size: var(--fs-small);
  color: var(--color-text-sub);
}

.news-card__tag {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.15em 0.6em;
  border-radius: 3px;
  background: var(--color-primary);
  color: var(--color-white);
}

.news-card__tag--seminar {
  background: var(--color-secondary);
}

.news-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.news-card__excerpt {
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* News: single featured */
.news-featured {
  max-width: 800px;
}


/* --- FAQ Accordion --- */
.faq-list {
  max-width: 800px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1.5;
}

.faq-question::before {
  content: "Q.";
  flex-shrink: 0;
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--color-accent);
  font-size: 1.125rem;
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform var(--duration) var(--ease);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-primary);
  border-radius: 1px;
}

.faq-icon::before {
  top: 50%;
  left: 4px;
  right: 4px;
  height: 2px;
  transform: translateY(-50%);
}

.faq-icon::after {
  left: 50%;
  top: 4px;
  bottom: 4px;
  width: 2px;
  transform: translateX(-50%);
  transition: transform var(--duration) var(--ease);
}

.faq-item[data-open="true"] .faq-icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 300ms var(--ease);
}

.faq-answer__inner {
  padding: 0 0 1.5rem 1.75rem;
  font-size: var(--fs-small);
  color: var(--color-text-sub);
  line-height: 1.8;
}


/* --- CTA Section --- */
.section--navy.section:has(.cta-section),
.section.section--navy:last-child {
  padding-top: clamp(2rem, 4vw, 3rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.cta-section {
  text-align: center;
  padding: clamp(0.5rem, 1vw, 1rem) 0;
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--color-text-sub);
  margin-bottom: 2rem;
  max-width: var(--content-max);
  margin-left: auto;
  margin-right: auto;
}

.cta-section .section--navy p {
  color: rgba(255,255,255,0.8);
}

.cta-section__buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-section__note {
  margin-top: 1rem;
  font-size: var(--fs-small);
  color: var(--color-text-sub);
}


/* --- Tag List --- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.75rem;
}

.tag-list__item {
  font-size: 0.6875rem;
  padding: 0.2em 0.6em;
  border-radius: 3px;
  background: var(--color-bg-cool);
  color: var(--color-text-sub);
  white-space: nowrap;
}


/* --- Breadcrumb --- */
.breadcrumb {
  padding: 0.375rem 0;
  font-size: var(--fs-small);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.breadcrumb li + li::before {
  content: "›";
  color: var(--color-text-sub);
  margin-right: 0.25rem;
}

.breadcrumb a {
  color: var(--color-text-sub);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}


/* --- Checklist --- */
.checklist {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--fs-body);
  line-height: 1.7;
}

.checklist__item::before {
  content: "";
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 0.2em;
  border-radius: 50%;
  background: var(--color-secondary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E");
  background-size: 14px;
  background-repeat: no-repeat;
  background-position: center;
}

@media (max-width: 767px) {
  .checklist {
    grid-template-columns: 1fr;
  }
}


/* --- Message Block --- */
.message-block {
  background: var(--color-bg-warm);
  border-radius: var(--card-radius);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: 2.5rem;
}

.message-block--navy {
  background: var(--color-primary);
  color: var(--color-white);
}

.message-block h3 {
  font-size: clamp(1.125rem, 1.5vw, 1.375rem);
  line-height: 1.6;
  font-weight: 600;
}

.message-block--navy h3 {
  color: var(--color-white);
}

.message-block p {
  margin-top: 1rem;
  color: var(--color-text-sub);
}

.message-block--navy p {
  color: rgba(255,255,255,0.8);
}


/* --- Organization Table --- */
.org-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
}

.org-table th,
.org-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: var(--fs-small);
  vertical-align: top;
}

.org-table th {
  width: 120px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.org-table td {
  color: var(--color-text);
}


/* --- Two-Column Guide (for-writers / for-companies on TOP) --- */
.dual-cta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.dual-cta__block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  padding: clamp(2rem, 3vw, 3rem);
  display: flex;
  flex-direction: column;
  transition: transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.dual-cta__block:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
}

.dual-cta__block h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  margin-bottom: 1rem;
}

.dual-cta__block p {
  flex: 1;
  color: var(--color-text-sub);
  font-size: var(--fs-small);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

@media (max-width: 767px) {
  .dual-cta {
    grid-template-columns: 1fr;
  }
}


/* ============================================
   HEADER
   ============================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-primary);
  flex-shrink: 0;
}

.header__logo-mark {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: -0.02em;
}

.header__logo-text {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  white-space: nowrap;
}

@media (max-width: 1200px) {
  .header__logo-text {
    font-size: 0.6875rem;
  }
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header__nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 0.5rem 0.625rem;
  border-radius: 4px;
  transition: color var(--duration) var(--ease),
              background var(--duration) var(--ease);
  white-space: nowrap;
  text-decoration: none;
}

.header__nav-link:hover {
  color: var(--color-primary);
  background: var(--color-bg-cool);
}

.header__cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 1rem;
}

.header__cta .btn {
  height: 40px;
  font-size: 0.8125rem;
  padding: 0 1.25rem;
}

/* Mobile hamburger */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.header__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: all var(--duration) var(--ease);
}

.header__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.header__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav overlay */
.header__mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 99;
  padding: 2rem var(--container-px);
  overflow-y: auto;
  flex-direction: column;
}

.header__mobile-nav.is-open {
  display: flex;
}

.header__mobile-nav-list {
  flex: 1;
}

.header__mobile-nav-link {
  display: block;
  padding: 0.875rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.header__mobile-nav-link:hover {
  color: var(--color-primary);
}

.header__mobile-cta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1.5rem;
  margin-top: auto;
}

.header__mobile-cta .btn {
  width: 100%;
  justify-content: center;
}

@media (max-width: 1023px) {
  .header__nav {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }
}


/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: clamp(3rem, 6vw, 5rem) 0 2rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.footer__brand {
  display: flex;
  flex-direction: column;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.footer__logo-mark {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.15);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.75rem;
}

.footer__logo-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.3;
}

.footer__org-info {
  font-size: 0.75rem;
  line-height: 1.8;
}

.footer__org-info dt {
  display: inline;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
}

.footer__org-info dt::after {
  content: "：";
}

.footer__org-info dd {
  display: inline;
}

.footer__org-info dd::after {
  content: "\A";
  white-space: pre;
}

.footer__heading {
  display: none;
}

.footer__links li + li {
  margin-top: 0.5rem;
}

.footer__links a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: clamp(2rem, 4vw, 3.5rem);
  padding-top: 1.5rem;
  text-align: center;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.footer__copyright {
  font-size: 0.6875rem;
  font-family: var(--font-en);
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
}

@media (max-width: 767px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}


/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  background: var(--color-primary);
  color: var(--color-white);
  overflow: hidden;
}

.hero__bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(23, 50, 77, 0);
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5.5rem) var(--container-px) clamp(2.5rem, 6vw, 5rem);
}

.hero__label {
  font-family: var(--font-en);
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  display: block;
}

.hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  max-width: 720px;
}

.hero__lead {
  font-size: clamp(0.9375rem, 1.2vw, 1.0625rem);
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  line-height: 1.9;
  margin-bottom: 2.5rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.hero__sub-link {
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: color var(--duration) var(--ease);
}

.hero__sub-link:hover {
  color: var(--color-white);
}

.sub-link-arrow {
  display: inline-block;
  width: 0.5em;
  height: 0.5em;
  border-bottom: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
  vertical-align: middle;
}

/* Hero background decoration */
.hero__bg-pattern {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 45%;
  opacity: 0.06;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 30px,
    rgba(255,255,255,0.4) 30px,
    rgba(255,255,255,0.4) 31px
  );
  z-index: 1;
}

/* TOP hero variant */
.hero--top .hero__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero--top h1 {
  max-width: 800px;
}

.hero--top .hero__lead {
  max-width: 650px;
  margin-left: auto;
  margin-right: auto;
}

.hero--top .hero__actions {
  justify-content: center;
}


/* ============================================
   STICKY CTA (mobile)
   ============================================ */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 0.75rem var(--container-px);
  box-shadow: 0 -2px 10px rgba(0,0,0,0.06);
}

.sticky-cta .btn {
  width: 100%;
  justify-content: center;
}

@media (max-width: 767px) {
  .hero__bg-image {
    display: none;
  }

  .sticky-cta {
    display: block;
  }

  /* Compensate for sticky CTA */
  .footer {
    padding-bottom: 5rem;
  }
}


/* ============================================
   ANIMATIONS (scroll reveal)
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease),
              transform 0.5s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ============================================
   PAGE-SPECIFIC OVERRIDES
   ============================================ */

/* Writers & Companies: compact hero */
.page-writers .hero__inner,
.page-companies .hero__inner {
  padding: clamp(2rem, 4vw, 3rem) var(--container-px) clamp(1.75rem, 3.5vw, 2.5rem);
}

.page-writers .hero__lead,
.page-companies .hero__lead {
  margin-bottom: 1.5rem;
}

/* Writers page: warmer, softer */
.page-writers .card {
  border-radius: 16px;
}

.page-writers .icon-card__icon {
  background: var(--color-bg-warm);
}

/* Companies page: crisper, structured */
.page-companies .card {
  border-radius: 8px;
}

.page-companies .step-item__number {
  background: var(--color-secondary);
}

/* Privacy page: smaller headings */
.page-privacy h2 {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
}


/* ============================================
   UTILITY
   ============================================ */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

@media (max-width: 767px) {
  .sp-hide { display: none !important; }
}

@media (min-width: 768px) {
  .pc-hide { display: none !important; }
}

/* Quality Assurance diagram: stack vertically on SP */
@media (max-width: 767px) {
  #quality-diagram > div {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }
  #quality-diagram > div > div:nth-child(2) {
    flex-direction: row !important;
    padding: 0.75rem 0 !important;
  }
  #quality-diagram > div > div:nth-child(2) > div:first-child,
  #quality-diagram > div > div:nth-child(2) > div:last-child {
    width: auto !important;
    height: 2px !important;
    flex: 1;
  }
}