/* =========================================
   株式会社イルア - 共通スタイル
   ========================================= */

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

:root {
  --color-primary:       #1a3a5c;
  --color-primary-light: #2563a8;
  --color-primary-pale:  #e8f0fb;
  --color-accent:        #2980b9;
  --color-text:          #1e2d3d;
  --color-text-sub:      #4a5568;
  --color-border:        #d0dde8;
  --color-bg:            #f7f9fc;
  --color-white:         #ffffff;
  --font-family:         'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
  --max-width:           1100px;
  --radius:              8px;
  --shadow:              0 2px 12px rgba(26, 58, 92, 0.09);
}

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

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.75;
}

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.section {
  padding: 72px 0;
}

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

.section__head {
  text-align: center;
  margin-bottom: 48px;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section__title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
}

.section__subtitle {
  margin-top: 14px;
  font-size: 0.95rem;
  color: var(--color-text-sub);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ----- Header / Navigation ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 6px rgba(26, 58, 92, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.site-logo__name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  line-height: 1.2;
}

.site-logo__tagline {
  font-size: 0.65rem;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-primary-light);
  text-decoration: none;
}

.site-nav .nav-cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 0.2s;
}

.site-nav .nav-cta:hover {
  background: var(--color-primary-light);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* ----- Hero ----- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2563a8 100%);
  color: var(--color-white);
  padding: 96px 24px;
  text-align: center;
}

.hero__kicker {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  color: #d4e8ff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 20px;
}

.hero__title span {
  color: #7ec8f8;
}

.hero__desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: 0.2s;
  text-decoration: none;
}

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

.btn--white:hover {
  background: #e8f0fb;
  text-decoration: none;
}

.btn--outline-white {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: var(--color-white);
}

.btn--outline-white:hover {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--color-primary-light);
  text-decoration: none;
}

/* ----- Notice Bar ----- */
.notice-bar {
  background: var(--color-primary-pale);
  border-left: 4px solid var(--color-primary-light);
  padding: 18px 28px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 0 0 40px;
}

.notice-bar p {
  font-size: 0.9rem;
  color: var(--color-primary);
  line-height: 1.7;
}

/* ----- Cards ----- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.card__icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.card__text {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* ----- Table ----- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead th {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
}

tbody tr:nth-child(even) {
  background: var(--color-bg);
}

tbody td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  line-height: 1.65;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* ----- Step Flow ----- */
.step-list {
  list-style: none;
  display: grid;
  gap: 20px;
}

.step-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
}

.step-body {}

.step-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 5px;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.step-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 100px;
  margin-top: 6px;
}

.step-tag--our {
  background: #dbeafe;
  color: #1e40af;
}

.step-tag--partner {
  background: #f0fdf4;
  color: #15803d;
}

/* ----- Form ----- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-label .required {
  color: #c0392b;
  margin-left: 4px;
  font-size: 0.75rem;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 168, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-top: 5px;
}

/* ----- Footer ----- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: 48px 24px 28px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  justify-content: space-between;
  margin-bottom: 36px;
}

.footer-logo__name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 6px;
}

.footer-logo__tag {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  align-items: center;
}

.footer-nav a {
  color: rgba(255,255,255,0.75);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 20px;
  font-size: 0.78rem;
  text-align: center;
  line-height: 1.8;
}

/* ----- Page Hero (sub pages) ----- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2563a8 100%);
  color: var(--color-white);
  padding: 60px 24px;
  text-align: center;
}

.page-hero__title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 10px;
}

.page-hero__sub {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}

/* ----- Breadcrumb ----- */
.breadcrumb {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  padding: 12px 0;
}

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

.breadcrumb span::before {
  content: ' › ';
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .site-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 24px 20px;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 10px 0;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .site-nav .nav-cta {
    margin-top: 10px;
    border-bottom: none;
  }

  .hamburger {
    display: flex;
  }

  .section {
    padding: 52px 0;
  }

  .hero {
    padding: 64px 20px;
  }

  .step-item {
    flex-direction: column;
  }

  .footer-top {
    flex-direction: column;
    gap: 24px;
  }
}