/* nikkijam.com - CSS Stylesheet */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  color: #333;
  background-color: #fff;
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: #339900;
  transition: color 0.2s ease;
}

a:hover {
  color: #267300;
}

ul, ol {
  padding-left: 1.5em;
}

/* Typography */
h1, h2, h3, h4 {
  color: #222;
  line-height: 1.4;
  font-weight: 700;
}

h1 {
  font-size: 1.875rem;
  margin-bottom: 1rem;
}

h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid #339900;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: #339900;
}

h4 {
  font-size: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.4rem;
}

p {
  margin-bottom: 1rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

main {
  flex: 1;
}

/* Header */
.site-header {
  background: #fff;
  border-bottom: 3px solid #339900;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 1.25rem;
  max-width: 1080px;
  margin: 0 auto;
}

.site-logo img {
  height: 50px;
  width: auto;
}

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #339900;
  margin-left: 0.5rem;
}

/* Navigation */
.main-nav ul {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  padding: 0;
}

.main-nav a {
  display: block;
  padding: 0.5rem 0.875rem;
  text-decoration: none;
  color: #333;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a.active {
  background-color: #339900;
  color: #fff;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #333;
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #339900 0%, #267300 100%);
  color: #fff;
  padding: 3rem 0;
  text-align: center;
}

.hero h1 {
  color: #fff;
  font-size: 2.25rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
  max-width: 640px;
  margin: 0 auto 1.5rem;
  opacity: 0.95;
}

.hero-logo {
  max-width: 273px;
  margin: 0 auto 1.5rem;
}

.hero-cta {
  display: inline-block;
  background: #FF9900;
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.0625rem;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.hero-cta:hover {
  background: #e68a00;
  color: #fff;
  transform: translateY(-1px);
}

/* Feature Cards */
.features {
  padding: 3rem 0;
  background: #f9f9f6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.feature-card {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border-top: 3px solid #339900;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  margin-top: 0;
  font-size: 1.125rem;
}

/* Blog Cards */
.blog-section {
  padding: 3rem 0;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.blog-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #eee;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.blog-card-header {
  background: linear-gradient(135deg, #339900, #44bb11);
  padding: 1.25rem;
  color: #fff;
}

.blog-card-header h3 {
  color: #fff;
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.5;
}

.blog-card-body {
  padding: 1.25rem;
}

.blog-card-body p {
  font-size: 0.9375rem;
  color: #555;
  margin-bottom: 1rem;
}

.blog-card-link {
  display: inline-block;
  color: #339900;
  text-decoration: underline;
  font-weight: 600;
  font-size: 0.9375rem;
}

/* Page Content */
.page-header {
  background: linear-gradient(135deg, #339900 0%, #267300 100%);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
}

.page-header h1 {
  color: #fff;
  margin-bottom: 0;
}

.page-content {
  padding: 2.5rem 0;
}

.page-content .container {
  max-width: 800px;
}

/* FAQ */
.faq-item {
  margin-bottom: 1.5rem;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  background: #f5f5f0;
  padding: 1rem 1.25rem;
  font-weight: 700;
  color: #339900;
  cursor: default;
}

.faq-answer {
  padding: 1rem 1.25rem;
  border-top: 1px solid #e0e0e0;
}

/* Contact Form Style */
.contact-info {
  background: #f9f9f6;
  border-radius: 8px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.contact-info dt {
  font-weight: 700;
  color: #339900;
  margin-top: 1rem;
}

.contact-info dt:first-child {
  margin-top: 0;
}

.contact-info dd {
  margin-left: 0;
  margin-bottom: 0.5rem;
}

/* Terms / Legal */
.legal-content ol {
  counter-reset: legal;
  list-style: none;
  padding-left: 0;
}

.legal-content ol > li {
  counter-increment: legal;
  margin-bottom: 1rem;
  padding-left: 2em;
  position: relative;
}

.legal-content ol > li::before {
  content: counter(legal) ".";
  position: absolute;
  left: 0;
  font-weight: 700;
  color: #339900;
}

/* Blog Article */
.article-meta {
  color: #777;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #e0e0e0;
}

.article-content h2 {
  margin-top: 2.5rem;
}

.article-content h3 {
  margin-top: 2rem;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1rem;
}

.article-content li {
  margin-bottom: 0.4rem;
}

.article-nav {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 2px solid #e0e0e0;
  text-align: center;
}

.article-nav a {
  text-decoration: underline;
}

.highlight-box {
  background: #f0f8e8;
  border-left: 4px solid #339900;
  padding: 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
}

.highlight-box-orange {
  background: #fff8ed;
  border-left: 4px solid #FF9900;
  padding: 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
}

/* Banners Section */
.banners {
  padding: 2rem 0;
  background: #f9f9f6;
  text-align: center;
}

.banner-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* Footer */
.site-footer {
  background: #2a2a2a;
  color: #ccc;
  padding: 2.5rem 0 1.5rem;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.footer-col-title {
  color: #FF9900;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  margin-top: 0;
  line-height: 1.4;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.4rem;
}

.footer-col a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #FF9900;
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  border-top: 1px solid #444;
  font-size: 0.8125rem;
  color: #999;
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.footer-logo { height: 36px; width: auto; margin-bottom: 0.75rem; opacity: 0.8; }

/* 404 Page */
.error-page { text-align: center; padding: 4rem 0; }
.error-page h1 { font-size: 4rem; color: #339900; }
.error-page p { font-size: 1.125rem; }
.error-page a { text-decoration: underline; }

/* Breadcrumb */
.breadcrumb { padding: 0.75rem 0; font-size: 0.875rem; color: #777; }
.breadcrumb a { color: #339900; text-decoration: underline; }
.breadcrumb span { margin: 0 0.4rem; }

/* Table */
table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; }
th, td { padding: 0.75rem; text-align: left; border-bottom: 1px solid #e0e0e0; }
th { background: #f5f5f0; font-weight: 700; color: #339900; }

/* Utility */
.text-center { text-align: center; }
.text-green { color: #339900; }
.text-orange { color: #FF9900; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Responsive - Tablet */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 3px solid #339900;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 0.5rem 0;
  }

  .main-nav a {
    padding: 0.75rem 1.25rem;
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
  }

  .features-grid,
  .blog-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}

/* Responsive - Mobile */
@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .features-grid, .blog-grid { grid-template-columns: 1fr; }
  .hero { padding: 2rem 0; }
  .hero h1 { font-size: 1.5rem; }
  .hero p { font-size: 1rem; }
  .hero-logo { max-width: 200px; }
  .page-header { padding: 1.5rem 0; }
  .page-content { padding: 1.5rem 0; }
  .container { padding: 0 1rem; }
  .blog-card-header { padding: 1rem; }
  .blog-card-body { padding: 1rem; }
  .contact-info { padding: 1.25rem; }
}

/* Print */
@media print {
  .site-header, .site-footer, .hamburger { display: none; }
  body { font-size: 12pt; color: #000; }
  a { color: #000; text-decoration: underline; }
}