/* ============================================
   合同会社 step addiction - Landing Page Styles
   ============================================ */

/* ----- Reset / Base ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }

/* ----- Color Tokens (bright & friendly) ----- */
:root {
  --primary: #ff8a4c;       /* warm orange */
  --primary-dark: #ef6a1f;
  --secondary: #ffd166;     /* sunny yellow */
  --accent: #4cc9c9;        /* mint */
  --text: #2b2b2b;
  --text-sub: #6b6b6b;
  --bg: #fffaf3;            /* cream */
  --surface: #ffffff;
  --line: #f1e8da;
  --shadow: 0 10px 30px rgba(239, 106, 31, 0.10);
  --radius: 18px;
  --radius-sm: 12px;
}

/* ----- Layout ----- */
.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}
.section { padding: 96px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-eyebrow {
  font-family: "Poppins", sans-serif;
  letter-spacing: 0.2em;
  color: var(--primary);
  font-weight: 700;
  margin: 0 0 12px;
  font-size: 14px;
}
.section-eyebrow.center { text-align: center; }
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  margin: 0 0 20px;
  letter-spacing: 0.02em;
}
.section-title.center { text-align: center; }
.section-lead { color: var(--text-sub); margin: 0; }
.section-lead.center { text-align: center; }

/* ----- Header ----- */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  background: rgba(255, 250, 243, 0.85);
  backdrop-filter: blur(10px);
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo {
  display: inline-flex; align-items: baseline; gap: 4px;
  font-weight: 800;
}
.logo-mark {
  font-family: "Poppins", sans-serif;
  font-size: 28px;
  color: var(--primary);
}
.logo-mark .dot { color: var(--accent); }
.logo-text {
  font-family: "Poppins", sans-serif;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.nav ul { display: flex; gap: 28px; align-items: center; }
.nav a {
  font-weight: 500; font-size: 15px;
  position: relative; padding: 6px 2px;
}
.nav a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; background: var(--primary);
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s ease;
}
.nav a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav-cta {
  background: var(--primary); color: #fff !important;
  padding: 10px 20px; border-radius: 999px;
  transition: background .2s, transform .2s;
}
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }

.menu-btn {
  display: none; background: none; border: 0;
  width: 36px; height: 36px; cursor: pointer; padding: 6px;
}
.menu-btn span {
  display: block; width: 100%; height: 2px; background: var(--text);
  margin: 5px 0; transition: transform .25s, opacity .25s;
}
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----- Hero ----- */
.hero {
  position: relative; padding: 140px 0 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
}
.blob {
  position: absolute; border-radius: 50%; filter: blur(60px); opacity: .55;
}
.blob-1 { width: 380px; height: 380px; background: var(--primary); top: -60px; left: -80px; }
.blob-2 { width: 320px; height: 320px; background: var(--secondary); top: 30%; right: -60px; }
.blob-3 { width: 260px; height: 260px; background: var(--accent); bottom: -80px; left: 30%; opacity: .35; }

.hero-inner { position: relative; z-index: 1; text-align: center; padding-top: 20px; }
.hero-eyebrow {
  font-family: "Poppins", sans-serif;
  letter-spacing: 0.3em; font-weight: 700;
  color: var(--primary); margin: 0 0 16px;
}
.hero-title {
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 900; line-height: 1.3; margin: 0 0 24px;
  letter-spacing: 0.02em;
}
.hero-title .accent {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { color: var(--text-sub); margin: 0 auto 40px; max-width: 640px; }
/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
  transition: transform .2s, box-shadow .2s, background .2s, color .2s;
  cursor: pointer;
}
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 8px 20px rgba(239, 106, 31, .25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(239, 106, 31, .35);
}
.btn-ghost {
  background: #fff; color: var(--text);
  border: 2px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--primary); color: var(--primary);
  transform: translateY(-2px);
}
.btn.big { padding: 18px 44px; font-size: 16px; }

/* ----- Mission ----- */
.mission { background: #fff7ee; }
.mission-grid {
  display: grid; gap: 32px;
  grid-template-columns: 1fr 1fr;
}
.mission-card {
  background: var(--surface); padding: 40px 36px;
  border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
}
.mission-heading {
  font-family: "Poppins", sans-serif;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--primary); margin: 0 0 16px;
}
.mission-catch {
  font-size: 20px; font-weight: 800; line-height: 1.55;
  margin: 0 0 16px; color: var(--text);
}
.mission-text {
  color: var(--text-sub); font-size: 14px; line-height: 1.85; margin: 0;
}

/* ----- Service ----- */
.service { background: var(--surface); }
.service-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.service-card {
  background: var(--bg);
  padding: 0; border-radius: var(--radius);
  border: 1px solid var(--line); overflow: hidden;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.service-card-img {
  aspect-ratio: 16 / 9; overflow: hidden;
}
.service-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.service-card:hover .service-card-img img { transform: scale(1.05); }
.service-card-body { padding: 24px 28px 28px; }
.service-card h3 {
  font-size: 20px; font-weight: 800; margin: 0 0 12px;
}
.service-card p {
  color: var(--text-sub); font-size: 14px; margin: 0 0 16px;
}
.tag-list {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tag-list li {
  background: #fff; color: var(--primary);
  border: 1px solid var(--line);
  padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}

/* ----- About ----- */
.about-inner {
  display: grid; gap: 56px;
  grid-template-columns: 1fr 1fr; align-items: center;
}
.about-text .section-eyebrow { text-align: left; }
.about-text .section-title { text-align: left; }
.about-text .btn { margin-top: 24px; }
.about-table {
  width: 100%; border-collapse: collapse;
  background: var(--surface); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
}
.about-table th, .about-table td {
  padding: 18px 24px; text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.about-table tr:last-child th,
.about-table tr:last-child td { border-bottom: 0; }
.about-table th {
  width: 36%; color: var(--primary);
  background: #fff7ee; font-weight: 700;
}

/* ----- Recruit ----- */
.recruit { background: linear-gradient(180deg, #fff7ee 0%, var(--bg) 100%); }
.recruit-grid {
  display: grid; gap: 24px; margin-bottom: 48px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.recruit-card {
  background: var(--surface); padding: 32px 28px;
  border-radius: var(--radius);
  border-top: 4px solid var(--primary);
  box-shadow: 0 6px 20px rgba(0,0,0,0.04);
  transition: transform .25s, box-shadow .25s;
}
.recruit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.recruit-card h3 {
  font-size: 20px; font-weight: 800; margin: 0 0 12px; color: var(--primary);
}
.recruit-card > p { color: var(--text-sub); font-size: 14px; margin: 0 0 20px; }
.recruit-meta { display: grid; gap: 8px; }
.recruit-meta li {
  display: flex; gap: 12px; font-size: 13px; align-items: baseline;
}
.recruit-meta span {
  display: inline-block; min-width: 72px;
  background: var(--bg); color: var(--text-sub);
  padding: 2px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
}
.recruit-cta { text-align: center; }
.recruit-cta p { color: var(--text-sub); margin-bottom: 16px; }

/* ----- Contact ----- */
.contact {
  background:
    radial-gradient(800px 400px at 50% 0%, #ffe6cf 0%, transparent 60%),
    var(--surface);
  text-align: center;
}
.contact-actions { margin-top: 36px; }

/* ----- News ----- */
.news { background: var(--bg); }
.news-list { display: grid; gap: 20px; }
.news-item {
  background: var(--surface); padding: 28px 32px;
  border-radius: var(--radius-sm); border: 1px solid var(--line);
  transition: box-shadow .25s;
}
.news-item:hover { box-shadow: var(--shadow); }
.news-meta {
  display: flex; align-items: center; gap: 12px; margin-bottom: 12px;
}
.news-date {
  font-family: "Poppins", sans-serif;
  font-size: 13px; color: var(--text-sub);
}
.news-badge {
  background: var(--primary); color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
}
.news-title {
  font-size: 18px; font-weight: 800; margin: 0 0 10px; color: var(--text);
}
.news-body {
  color: var(--text-sub); font-size: 14px; line-height: 1.85; margin: 0;
}

/* ----- Footer ----- */
.site-footer {
  padding: 32px 0; background: #fff; border-top: 1px solid var(--line);
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-inner .logo { margin: 0; }
.copy { color: var(--text-sub); font-size: 13px; margin: 0; }

/* ----- Responsive ----- */
.pc-only { display: inline; }

@media (max-width: 820px) {
  .pc-only { display: none; }
  .section { padding: 72px 0; }

  .menu-btn { display: block; }
  .nav {
    position: fixed; inset: 72px 0 auto 0;
    background: var(--bg);
    transform: translateY(-20px); opacity: 0; pointer-events: none;
    transition: transform .25s, opacity .25s;
    border-bottom: 1px solid var(--line);
  }
  .nav.is-open {
    transform: translateY(0); opacity: 1; pointer-events: auto;
  }
  .nav ul {
    flex-direction: column; gap: 8px; padding: 16px 0 24px;
  }
  .nav a { display: block; padding: 14px 24px; }
  .nav-cta { margin: 8px 24px; text-align: center; }

  .hero { padding: 120px 0 80px; }
  .mission-grid { grid-template-columns: 1fr; }

  .about-inner { grid-template-columns: 1fr; gap: 32px; }
  .about-text .section-eyebrow,
  .about-text .section-title { text-align: center; }
  .about-text .btn { display: block; margin: 24px auto 0; max-width: 300px; }
}

@media (max-width: 480px) {
  .news-item { padding: 20px; }
}

/* ----- Reveal Animation ----- */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }