/* ============================================================
   Korisu Employment Agency — Main Stylesheet
   ============================================================ */

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

:root {
  --sand:        #F5F0E8;
  --warm-white:  #FDFAF5;
  --bark:        #5C4033;
  --moss:        #4A6741;
  --moss-light:  #7A9E6F;
  --clay:        #C07B4A;
  --clay-light:  #E8B07A;
  --ink:         #2C1F14;
  --muted:       #7A6A5A;
  --border:      rgba(92, 64, 51, 0.15);
  --card-bg:     #FFFDF8;
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   20px;
  --radius-pill: 999px;
  --transition:  0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Zen Kaku Gothic New', 'Noto Serif JP', sans-serif;
  background: var(--warm-white);
  color: var(--ink);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

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

/* ---------- Navigation ---------- */
#navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 3rem;
  background: var(--warm-white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: var(--bark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 22px;
  height: 22px;
  fill: var(--clay-light);
}

.logo-text {
  font-family: 'Noto Serif JP', serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--bark);
  display: block;
}

.logo-sub {
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  display: block;
  margin-top: -2px;
}

.nav-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover { color: var(--bark); }

.nav-cta {
  background: var(--bark);
  color: #fff;
  border: none;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background var(--transition);
  letter-spacing: 0.05em;
  font-family: inherit;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-cta:hover { background: var(--clay); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--bark);
}

/* ---------- Mobile Menu ---------- */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--warm-white);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  gap: 1rem;
  position: sticky;
  top: 64px;
  z-index: 199;
}

.mobile-menu a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}

.mobile-menu.open { display: flex; }

/* ---------- Hero ---------- */
.hero {
  padding: 5rem 3rem 4.5rem;
  background: linear-gradient(160deg, var(--sand) 0%, var(--warm-white) 55%);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  overflow: hidden;
  min-height: 85vh;
}

.hero::before {
  content: '木';
  font-family: 'Noto Serif JP', serif;
  font-size: 28rem;
  color: rgba(92, 64, 51, 0.04);
  position: absolute;
  right: -3rem;
  top: -4rem;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.hero-tag {
  display: inline-block;
  background: var(--moss);
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 1.3rem;
}

.hero h1 {
  font-family: 'Noto Serif JP', serif;
  font-size: 2.9rem;
  font-weight: 600;
  color: var(--bark);
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.hero-en {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--muted);
  display: block;
  margin-top: 0.6rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.hero-desc {
  color: var(--muted);
  font-size: 0.93rem;
  margin: 1.3rem 0 2rem;
  max-width: 440px;
  line-height: 1.8;
}

.hero-desc-en {
  display: block;
  font-size: 0.82rem;
  margin-top: 0.5rem;
  opacity: 0.75;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn-primary {
  background: var(--bark);
  color: #fff;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background var(--transition);
  letter-spacing: 0.05em;
  font-family: inherit;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary:hover { background: var(--clay); }

.btn-outline {
  border: 1.5px solid var(--bark);
  color: var(--bark);
  padding: 0.85rem 2rem;
  border-radius: var(--radius-pill);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background var(--transition);
  letter-spacing: 0.05em;
  font-family: inherit;
  cursor: pointer;
  background: transparent;
  display: inline-block;
}

.btn-outline:hover { background: var(--sand); }

/* ---------- Hero Stats ---------- */
.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.2rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(92, 64, 51, 0.1);
}

.stat-card:nth-child(2) { margin-top: 1.5rem; }
.stat-card:nth-child(4) { margin-top: -1.5rem; }

.stat-num {
  font-family: 'Noto Serif JP', serif;
  font-size: 2rem;
  font-weight: 600;
  color: var(--bark);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0.05em;
}

.stat-jp {
  font-size: 0.68rem;
  color: var(--clay);
  margin-top: 2px;
}

/* ---------- Shared Section Styles ---------- */
.section {
  padding: 5.5rem 3rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-tag {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--clay);
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 2rem;
  color: var(--bark);
  font-weight: 600;
}

.section-en {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--muted);
  display: block;
  margin-top: 5px;
  letter-spacing: 0.08em;
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}

.service-card.accent-moss::before { background: var(--moss); }
.service-card.accent-clay::before { background: var(--clay); }
.service-card.accent-bark::before { background: var(--bark); }

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(92, 64, 51, 0.1);
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.5rem;
}

.icon-moss { background: rgba(74, 103, 65, 0.12); }
.icon-clay { background: rgba(192, 123, 74, 0.12); }
.icon-bark { background: rgba(92, 64, 51, 0.12); }

.service-card h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.1rem;
  color: var(--bark);
  margin-bottom: 0.3rem;
}

.service-en-sub {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 0.9rem;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.75;
}

.p-en {
  font-size: 0.8em;
  opacity: 0.75;
  display: block;
  margin-top: 0.4rem;
}

/* ---------- Process ---------- */
.process-section {
  background: var(--sand);
  padding: 5.5rem 3rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 3rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.steps::before {
  content: '';
  position: absolute;
  top: 1.35rem;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: var(--border);
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 1rem;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Serif JP', serif;
  font-size: 1rem;
  font-weight: 600;
  margin: 0 auto 1rem;
}

.step h4 {
  font-family: 'Noto Serif JP', serif;
  font-size: 0.95rem;
  color: var(--bark);
  margin-bottom: 4px;
}

.step-en-label {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.step p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- Audience ---------- */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.audience-card {
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
}

.audience-card.seeker { background: var(--bark); }
.audience-card.employer { background: var(--sand); border: 1px solid var(--border); }

.bg-char {
  position: absolute;
  right: 1rem;
  bottom: -2rem;
  font-family: 'Noto Serif JP', serif;
  font-size: 10rem;
  opacity: 0.07;
  line-height: 1;
  user-select: none;
  pointer-events: none;
}

.audience-card.seeker .bg-char { color: #fff; }
.audience-card.employer .bg-char { color: var(--bark); }

.audience-card h3 {
  font-family: 'Noto Serif JP', serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.audience-card.seeker h3 { color: #fff; }
.audience-card.employer h3 { color: var(--bark); }

.en-label {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  margin-bottom: 1.3rem;
  display: block;
}

.audience-card.seeker .en-label { color: rgba(255, 255, 255, 0.6); }
.audience-card.employer .en-label { color: var(--muted); }

.audience-list {
  list-style: none;
}

.audience-list li {
  font-size: 0.88rem;
  padding: 0.4rem 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.audience-card.seeker .audience-list li { color: rgba(255, 255, 255, 0.85); }
.audience-card.employer .audience-list li { color: var(--muted); }

.check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
}

.audience-card.seeker .check { background: rgba(255, 255, 255, 0.2); color: #fff; }
.audience-card.employer .check { background: rgba(74, 103, 65, 0.15); color: var(--moss); }

.audience-cta {
  display: inline-block;
  margin-top: 1.5rem;
  font-size: 0.88rem;
  text-decoration: none;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-pill);
  font-family: inherit;
  cursor: pointer;
  border: none;
  letter-spacing: 0.05em;
  transition: opacity var(--transition);
}

.audience-cta:hover { opacity: 0.85; }
.audience-card.seeker .audience-cta { background: rgba(255, 255, 255, 0.2); color: #fff; }
.employer-cta { background: var(--bark); color: #fff; }

/* ---------- Testimonials ---------- */
.testimonials-section { background: var(--warm-white); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.testimonial {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.8rem 1.5rem;
}

.quote {
  font-size: 2.2rem;
  color: var(--clay-light);
  line-height: 1;
  margin-bottom: 0.8rem;
  font-family: 'Noto Serif JP', serif;
}

.testimonial > p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 1.3rem;
}

.reviewer {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--sand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--bark);
  font-weight: 600;
  flex-shrink: 0;
}

.reviewer-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--bark);
}

.reviewer-role {
  font-size: 0.73rem;
  color: var(--muted);
}

/* ---------- Contact ---------- */
.contact-section {
  background: var(--bark);
  padding: 5.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '働';
  font-family: 'Noto Serif JP', serif;
  font-size: 22rem;
  color: rgba(255, 255, 255, 0.04);
  position: absolute;
  right: 5%;
  top: -3rem;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.contact-section h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: 2.1rem;
  color: #fff;
  font-weight: 600;
  margin-bottom: 0.5rem;
  position: relative;
}

.contact-sub {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.contact-form {
  max-width: 500px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
  position: relative;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.contact-form select {
  color: rgba(255, 255, 255, 0.7);
}

.contact-form select option {
  background: var(--bark);
  color: #fff;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--clay-light);
}

.contact-form textarea {
  resize: vertical;
  min-height: 110px;
}

.contact-form button {
  background: var(--clay-light);
  color: var(--ink);
  border: none;
  padding: 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition);
  letter-spacing: 0.05em;
}

.contact-form button:hover { background: #fff; }

.form-success {
  display: none;
  color: var(--clay-light);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  padding: 2.5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-links {
  display: flex;
  gap: 1.8rem;
  list-style: none;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: rgba(255, 255, 255, 0.75); }

.footer-copy {
  color: rgba(255, 255, 255, 0.25);
  font-size: 0.75rem;
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-content > * {
  animation: fadeUp 0.65s ease both;
}

.hero-content > *:nth-child(1) { animation-delay: 0.05s; }
.hero-content > *:nth-child(2) { animation-delay: 0.15s; }
.hero-content > *:nth-child(3) { animation-delay: 0.25s; }
.hero-content > *:nth-child(4) { animation-delay: 0.35s; }

.hero-visual {
  animation: fadeUp 0.65s 0.2s ease both;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  #navbar { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }

  .hero {
    grid-template-columns: 1fr;
    padding: 3.5rem 1.5rem 3rem;
    min-height: auto;
    gap: 2.5rem;
  }

  .hero::before { font-size: 14rem; right: -1rem; top: -1rem; }
  .hero h1 { font-size: 2.1rem; }

  .section { padding: 3.5rem 1.5rem; }
  .process-section { padding: 3.5rem 1.5rem; }
  .contact-section { padding: 3.5rem 1.5rem; }
  .site-footer { padding: 2rem 1.5rem; flex-direction: column; align-items: flex-start; }

  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .steps::before { display: none; }

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

  .contact-section::before { font-size: 12rem; }
}

@media (max-width: 520px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-visual { grid-template-columns: 1fr 1fr; }
  .stat-card:nth-child(2), .stat-card:nth-child(4) { margin-top: 0; }
  .steps { grid-template-columns: 1fr; }
  .section-title { font-size: 1.6rem; }
}