/* ==========================================================================
   Stella Growth Corporate Site - Common Stylesheet
   ========================================================================== */

:root {
  --color-navy-900: #0a1930;
  --color-navy-800: #0f2340;
  --color-navy-700: #16335c;
  --color-navy-600: #24487d;
  --color-gray-900: #1f2430;
  --color-gray-700: #454c58;
  --color-gray-600: #5a6472;
  --color-gray-400: #8a93a3;
  --color-gray-300: #d7dbe2;
  --color-gray-200: #e7e9ee;
  --color-gray-100: #f4f5f8;
  --color-white: #ffffff;
  --color-accent: #b6924f;
  --color-accent-dark: #93753d;
  --color-accent-light: #f4ead9;

  --font-base: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", -apple-system, BlinkMacSystemFont, sans-serif;

  --container-width: 1120px;
  --header-height: 76px;

  --shadow-card: 0 4px 24px rgba(15, 35, 64, 0.08);
  --shadow-card-hover: 0 12px 32px rgba(15, 35, 64, 0.14);

  --transition-base: 0.25s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-gray-900);
  background: var(--color-white);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 96px 0;
}

@media (max-width: 768px) {
  section {
    padding: 64px 0;
  }
}

.bg-gray {
  background: var(--color-gray-100);
}

.bg-navy {
  background: linear-gradient(135deg, var(--color-navy-900), var(--color-navy-700));
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Section heading
   -------------------------------------------------------------------------- */

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.bg-navy .section-eyebrow {
  color: var(--color-accent);
}

.section-title {
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  color: var(--color-navy-900);
  letter-spacing: 0.02em;
}

.bg-navy .section-title {
  color: var(--color-white);
}

.section-lead {
  margin-top: 18px;
  font-size: 16px;
  color: var(--color-gray-600);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.bg-navy .section-lead {
  color: var(--color-gray-300);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
  z-index: 1000;
  transition: background var(--transition-base);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 700;
  font-size: 20px;
  color: var(--color-navy-900);
  letter-spacing: 0.02em;
}

.logo .logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-navy-800), var(--color-navy-600));
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 700;
}

.logo .logo-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-gray-600);
  letter-spacing: 0.08em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-desktop a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: color var(--transition-base);
  white-space: nowrap;
}

.nav-desktop a:hover {
  color: var(--color-navy-800);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(182, 146, 79, 0.32);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(182, 146, 79, 0.4);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-navy-800);
  color: var(--color-navy-900);
}

.btn-outline:hover {
  background: var(--color-navy-900);
  color: var(--color-white);
}

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

.btn-outline-light:hover {
  background: var(--color-white);
  color: var(--color-navy-900);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 13px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy-900);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-desktop {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 24px;
    border-bottom: 1px solid var(--color-gray-200);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .nav-desktop.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-desktop a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-100);
  }

  .header-actions .btn-outline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding-top: calc(var(--header-height) + 96px);
  padding-bottom: 96px;
  background: linear-gradient(160deg, var(--color-navy-900) 0%, var(--color-navy-800) 46%, var(--color-navy-700) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 82% 18%, rgba(182, 146, 79, 0.28), transparent 45%),
    radial-gradient(circle at 8% 90%, rgba(36, 72, 125, 0.55), transparent 50%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
  }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

.hero-title {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.hero-title em {
  font-style: normal;
  color: var(--color-accent);
  white-space: nowrap;
}

.hero-lead {
  margin-top: 28px;
  font-size: 16px;
  color: var(--color-gray-300);
  max-width: 560px;
  line-height: 1.95;
}

.hero-actions {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual svg {
  width: 100%;
  max-width: 420px;
  height: auto;
}

/* --------------------------------------------------------------------------
   Value propositions (Section 2)
   -------------------------------------------------------------------------- */

.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

@media (max-width: 800px) {
  .value-grid {
    grid-template-columns: 1fr;
  }
}

.value-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.value-card .value-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-navy-900);
  color: var(--color-accent);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 24px;
}

.value-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-navy-900);
  line-height: 1.6;
  margin-bottom: 14px;
}

.value-card p {
  color: var(--color-gray-600);
  font-size: 14.5px;
}

.value-note {
  margin-top: 28px;
  text-align: center;
  font-size: 14px;
  color: var(--color-gray-600);
}

/* --------------------------------------------------------------------------
   Business content (Section 3)
   -------------------------------------------------------------------------- */

.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 960px) {
  .business-grid {
    grid-template-columns: 1fr;
  }
}

.business-card {
  background: var(--color-white);
  border-radius: 16px;
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
}

.business-card .business-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: 10px;
}

.business-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--color-accent-light);
}

.business-card ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.business-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-gray-700);
  line-height: 1.7;
}

.business-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.support-scheme {
  margin-top: 40px;
  background: var(--color-navy-900);
  border-radius: 16px;
  padding: 40px;
  color: var(--color-white);
}

.support-scheme h4 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 22px;
  text-transform: uppercase;
}

.scheme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 800px) {
  .scheme-grid {
    grid-template-columns: 1fr;
  }
}

.scheme-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 22px 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-gray-300);
}

.scheme-item strong {
  display: block;
  color: var(--color-white);
  font-size: 15px;
  margin-bottom: 6px;
}

/* --------------------------------------------------------------------------
   Clients (Section 4)
   -------------------------------------------------------------------------- */

.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .client-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.client-card {
  text-align: center;
  padding: 36px 20px;
  border-radius: 14px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.client-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--color-accent);
}

.client-card .client-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-accent-light);
  color: var(--color-navy-800);
}

.client-card .client-icon svg {
  width: 26px;
  height: 26px;
}

.client-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy-900);
  line-height: 1.6;
}

.client-card p {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--color-gray-600);
}

/* --------------------------------------------------------------------------
   Company profile table (Section 5)
   -------------------------------------------------------------------------- */

.profile-table-wrap {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: 16px;
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
}

.profile-table tr {
  border-bottom: 1px solid var(--color-gray-200);
}

.profile-table tr:last-child {
  border-bottom: none;
}

.profile-table th,
.profile-table td {
  text-align: left;
  padding: 22px 32px;
  font-size: 14.5px;
  vertical-align: top;
}

.profile-table th {
  width: 160px;
  background: var(--color-gray-100);
  color: var(--color-navy-900);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.profile-table td {
  color: var(--color-gray-700);
  line-height: 1.8;
}

@media (max-width: 640px) {
  .profile-table th,
  .profile-table td {
    display: block;
    width: auto;
    padding: 14px 20px;
  }

  .profile-table th {
    padding-bottom: 6px;
  }

  .profile-table td {
    padding-top: 0;
    padding-bottom: 20px;
  }
}

/* --------------------------------------------------------------------------
   CTA (Section 6)
   -------------------------------------------------------------------------- */

.cta-section {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section .container {
  position: relative;
}

.cta-section .section-title {
  margin-bottom: 20px;
}

.cta-section .btn {
  margin-top: 12px;
  padding: 17px 48px;
  font-size: 15px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  background: var(--color-navy-900);
  color: var(--color-gray-300);
  padding: 56px 0 28px;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand .logo {
  color: var(--color-white);
}

.footer-brand p {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--color-gray-400);
  max-width: 320px;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}

.footer-links h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13.5px;
  color: var(--color-gray-400);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12.5px;
  color: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Contact page
   -------------------------------------------------------------------------- */

.page-hero {
  padding-top: calc(var(--header-height) + 64px);
  padding-bottom: 56px;
  background: linear-gradient(160deg, var(--color-navy-900), var(--color-navy-700));
  color: var(--color-white);
  text-align: center;
}

.page-hero .section-eyebrow {
  color: var(--color-accent);
}

.page-hero h1 {
  font-size: clamp(26px, 3.6vw, 36px);
  font-weight: 700;
  margin-top: 10px;
}

.page-hero p {
  margin-top: 16px;
  color: var(--color-gray-300);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.breadcrumb {
  margin-top: 20px;
  font-size: 13px;
  color: var(--color-gray-400);
}

.breadcrumb a {
  color: var(--color-gray-300);
}

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

.form-section {
  padding: 72px 0 120px;
}

.form-wrap {
  max-width: 680px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 20px;
  box-shadow: var(--shadow-card);
  padding: 48px;
}

@media (max-width: 640px) {
  .form-wrap {
    padding: 32px 22px;
  }
}

.form-group {
  margin-bottom: 26px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: 10px;
}

.required-badge {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-white);
  background: #c0453a;
  border-radius: 4px;
  padding: 2px 7px;
  vertical-align: middle;
}

.optional-badge {
  display: inline-block;
  margin-left: 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-gray-600);
  background: var(--color-gray-200);
  border-radius: 4px;
  padding: 2px 7px;
  vertical-align: middle;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--color-gray-900);
  background: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: 10px;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-white);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 560px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--color-gray-700);
  line-height: 1.7;
}

.form-checkbox input {
  margin-top: 4px;
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent-dark);
  flex-shrink: 0;
}

.form-checkbox a {
  color: var(--color-navy-800);
  font-weight: 700;
  text-decoration: underline;
}

.form-submit {
  width: 100%;
  border: none;
  margin-top: 8px;
}

.form-error {
  font-size: 12.5px;
  color: #c0453a;
  margin-top: 6px;
  display: none;
}

.form-note {
  text-align: center;
  font-size: 12.5px;
  color: var(--color-gray-600);
  margin-top: 20px;
}

.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Result page (mail.php success / error)
   -------------------------------------------------------------------------- */

.result-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
}

.result-box {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.result-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.result-icon.is-error {
  background: #fbe6e4;
  color: #c0453a;
}

.result-box h1 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-navy-900);
  margin-bottom: 16px;
}

.result-box p {
  color: var(--color-gray-600);
  line-height: 1.9;
  margin-bottom: 32px;
}

/* --------------------------------------------------------------------------
   Privacy policy page
   -------------------------------------------------------------------------- */

.policy-section {
  padding: 64px 0 120px;
}

.policy-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.policy-wrap h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-navy-900);
  margin-top: 44px;
  margin-bottom: 14px;
}

.policy-wrap h2:first-child {
  margin-top: 0;
}

.policy-wrap p,
.policy-wrap li {
  font-size: 14.5px;
  color: var(--color-gray-700);
  line-height: 1.9;
}

.policy-wrap ul {
  padding-left: 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.policy-wrap li {
  position: relative;
  padding-left: 18px;
}

.policy-wrap li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.policy-updated {
  margin-top: 56px;
  font-size: 13px;
  color: var(--color-gray-400);
  text-align: right;
}

.policy-draft-note {
  background: #fff8e8;
  border: 1px solid #eecf8a;
  color: #7a5c17;
  border-radius: 10px;
  padding: 16px 20px;
  font-size: 13px;
  margin-bottom: 40px;
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */


.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.nowrap {
  white-space: nowrap;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}