/* ============================================
   KURORO CAREER - Corporate Site Stylesheet
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --color-primary: #1a2744;
  --color-primary-light: #2a3f6e;
  --color-accent: #e8963e;
  --color-accent-light: #f5b870;
  --color-bg: #fafafa;
  --color-bg-alt: #f0eeeb;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-white: #ffffff;
  --color-border: #e0ddd8;
  --font-display: 'Outfit', 'Noto Sans JP', sans-serif;
  --font-body: 'Noto Sans JP', 'Outfit', sans-serif;
  --max-width: 1140px;
  --header-height: 80px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

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

ul, ol {
  list-style: none;
}

/* --- Utility --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

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

.section__label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.section__title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section__subtitle {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin-bottom: 48px;
}

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

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

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.08);
}

.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.header__logo span {
  color: var(--color-accent);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.header__nav a:hover::after {
  width: 100%;
}

.header__nav a.current {
  color: var(--color-primary);
  font-weight: 700;
}

.header__nav a.current::after {
  width: 100%;
}

/* Mobile Menu Button */
.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

/* --- Hero --- */
.hero {
  margin-top: var(--header-height);
  padding: 120px 0 100px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 150, 62, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(232, 150, 62, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.2s;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.4s;
}

.hero__text {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards 0.8s;
}

/* --- Page Hero (subpages) --- */
.page-hero {
  margin-top: var(--header-height);
  padding: 80px 0 60px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  position: relative;
}

.page-hero__breadcrumb {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 16px;
}

.page-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

.page-hero__title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.3;
}

.page-hero__subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 12px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn--primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 150, 62, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

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

.btn--dark:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

/* --- Cards --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.card__icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.card__text {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
}

.card__link:hover {
  gap: 10px;
}

/* --- Feature Section --- */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature--reverse {
  direction: rtl;
}

.feature--reverse > * {
  direction: ltr;
}

.feature__image {
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
}

.feature__image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-border);
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, #e8e5e0 100%);
}

.feature__content h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.feature__content p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

/* --- Stats --- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 60px 0;
}

.stat {
  text-align: center;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat__label {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* --- Blog Cards --- */
.blog-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
}

.blog-card__thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.3);
}

.blog-card__body {
  padding: 24px;
}

.blog-card__date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.5;
}

.blog-card__excerpt {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Blog Article --- */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.article__meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article__body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 48px 0 16px;
}

.article__body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 36px 0 12px;
}

.article__body p {
  margin-bottom: 20px;
  color: var(--color-text);
}

.article__body ul, .article__body ol {
  margin: 16px 0 24px 24px;
}

.article__body li {
  list-style: disc;
  margin-bottom: 8px;
  color: var(--color-text);
}

.article__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 48px;
  font-weight: 600;
  color: var(--color-accent);
}

/* --- Contact Form --- */
.form {
  max-width: 640px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: 28px;
}

.form__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.form__label span {
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-left: 8px;
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-white);
  transition: border-color var(--transition);
  outline: none;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--color-accent);
}

.form__textarea {
  height: 160px;
  resize: vertical;
}

.form__submit {
  width: 100%;
  margin-top: 8px;
}

/* --- CTA --- */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(232, 150, 62, 0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.cta__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  position: relative;
}

.cta__text {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
  position: relative;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer__brand span {
  color: var(--color-accent);
}

.footer__desc {
  font-size: 0.88rem;
  line-height: 1.8;
}

.footer__heading {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.footer__links li {
  margin-bottom: 12px;
}

.footer__links a {
  font-size: 0.88rem;
  transition: color var(--transition);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .feature--reverse {
    direction: ltr;
  }

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

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

  .hero__title {
    font-size: 2.4rem;
  }

  .page-hero__title {
    font-size: 2rem;
  }
}

@media (max-width: 600px) {
  .header__nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  }

  .header__nav.active {
    display: flex;
  }

  .header__menu-btn {
    display: flex;
  }

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

  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .hero {
    padding: 80px 0 60px;
  }

  .hero__title {
    font-size: 1.9rem;
  }

  .section {
    padding: 64px 0;
  }

  .section__title {
    font-size: 1.7rem;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}