/*
Theme Name: Anzen Toishi
Theme URI: https://anzentoishi.com
Author: 安全砥石株式会社
Description: 安全砥石株式会社 カスタムテーマ
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: anzen-toishi
*/

/* =============================================
   CSS Custom Properties
============================================= */
:root {
  --color-bg:        #f5f3ef;
  --color-bg-alt:    #ffffff;
  --color-dark:      #1e1e1e;
  --color-mid:       #4a4a4a;
  --color-light:     #8a8070;
  --color-accent:    #b8912a;
  --color-accent-lt: #d4aa50;
  --color-border:    #ddd8cf;
  --color-section:   #f0ede7;

  --font-serif:  'Shippori Mincho', 'Noto Serif JP', serif;
  --font-sans:   'Noto Sans JP', sans-serif;
  --font-latin:  'Cormorant Garamond', serif;

  --header-h: 72px;
  --max-w:    1200px;
  --radius:   4px;
  --shadow:   0 4px 24px rgba(0,0,0,0.08);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* =============================================
   Utility
============================================= */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: 0.4em;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  margin: 0.6em auto 0;
}

.section-sub {
  text-align: center;
  color: var(--color-light);
  font-family: var(--font-latin);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

section {
  padding: 90px 0;
}

section:nth-child(even) {
  background: var(--color-section);
}

/* =============================================
   Header
============================================= */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  padding: 0 40px;
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.transparent {
  background: transparent;
}

#site-header.solid {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
}

.site-logo a {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--color-dark);
  transition: color var(--transition);
}

#site-header.transparent .site-logo a {
  color: #fff;
}

.site-logo img {
  height: 36px;
  width: auto;
}

.global-nav ul {
  display: flex;
  gap: 2rem;
}

.global-nav a {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--color-mid);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 2px;
}

#site-header.transparent .global-nav a {
  color: rgba(255,255,255,0.85);
}

.global-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.global-nav a:hover { color: var(--color-accent); }
.global-nav a:hover::after { width: 100%; }

.header-tel a {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-dark);
  letter-spacing: 0.03em;
}

#site-header.transparent .header-tel a { color: #fff; }

.header-tel .tel-icon {
  width: 16px; height: 16px;
  fill: currentColor;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--color-dark);
  transition: var(--transition);
}

#site-header.transparent .hamburger span { background: #fff; }

.hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* SP nav overlay */
.sp-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-dark);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.sp-nav.is-open { display: flex; }

.sp-nav a {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: #fff;
  letter-spacing: 0.15em;
}

.sp-nav a:hover { color: var(--color-accent-lt); }

/* =============================================
   Hero
============================================= */
#hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding-bottom: 80px;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-slide.is-active { opacity: 1; }

/* Fallback gradient when no images */
.hero-slide:nth-child(1) {
  background-image: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.2) 0%,
    rgba(0,0,0,0.55) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 40px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  font-family: var(--font-latin);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-lt);
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 500;
  color: #fff;
  line-height: 1.5;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}

.hero-company {
  font-family: var(--font-serif);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.2em;
}

/* News ticker in hero */
.hero-news {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 14px 40px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.hero-news-label {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--color-accent-lt);
  text-transform: uppercase;
  white-space: nowrap;
  font-family: var(--font-latin);
}

.hero-news ul {
  display: flex;
  gap: 2.5rem;
  overflow: hidden;
}

.hero-news li a {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: rgba(255,255,255,0.8);
  font-size: 0.82rem;
  transition: color var(--transition);
}

.hero-news li a:hover { color: #fff; }

.hero-news .date {
  color: var(--color-accent-lt);
  font-family: var(--font-latin);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}

/* =============================================
   Service Section
============================================= */
#service .service-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-top: 3rem;
}

#service .service-text p {
  color: var(--color-mid);
  line-height: 2;
  font-size: 0.95rem;
}

#service .service-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

#service .service-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

#service .service-img:hover img { transform: scale(1.03); }

/* =============================================
   Works Section
============================================= */
#works { background: var(--color-bg); }

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 3rem;
}

.works-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: transform var(--transition), box-shadow var(--transition);
}

.works-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.works-card-img {
  overflow: hidden;
  height: 200px;
}

.works-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.works-card:hover .works-card-img img {
  transform: scale(1.05);
}

.works-card-body {
  padding: 20px 22px 24px;
}

.works-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.6rem;
  color: var(--color-dark);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

.works-card-body p {
  font-size: 0.82rem;
  color: var(--color-mid);
  line-height: 1.85;
}

.works-note {
  text-align: right;
  font-size: 0.75rem;
  color: var(--color-light);
  margin-top: 1.5rem;
}

/* =============================================
   Company Section
============================================= */
#company { background: var(--color-section); }

.company-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 3rem;
  font-size: 0.9rem;
}

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

.company-table th,
.company-table td {
  padding: 18px 20px;
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 180px;
  font-weight: 500;
  color: var(--color-light);
  letter-spacing: 0.05em;
  background: rgba(255,255,255,0.5);
}

.company-table td {
  color: var(--color-mid);
}

.company-map {
  margin-top: 3rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.company-map iframe {
  display: block;
  width: 100%;
  height: 400px;
  border: none;
}

/* =============================================
   Blog / News Section
============================================= */
#news-section { background: var(--color-bg); }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 3rem;
}

.news-card a {
  display: block;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-card a:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.1);
}

.news-card-img {
  height: 180px;
  overflow: hidden;
}

.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.news-card a:hover .news-card-img img {
  transform: scale(1.04);
}

.news-card-body {
  padding: 16px 18px 20px;
}

.news-card-date {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

.news-card-title {
  font-size: 0.88rem;
  color: var(--color-dark);
  line-height: 1.6;
}

.more-link {
  display: block;
  width: fit-content;
  margin: 2.5rem auto 0;
  padding: 12px 36px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  transition: background var(--transition), color var(--transition);
}

.more-link:hover {
  background: var(--color-accent);
  color: #fff;
}

/* =============================================
   Contact Section
============================================= */
#contact { background: var(--color-section); }

.contact-intro {
  text-align: center;
  color: var(--color-mid);
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
  line-height: 1.9;
}

.contact-intro small {
  display: block;
  font-size: 0.78rem;
  color: var(--color-light);
  margin-top: 0.3rem;
}

.contact-form-wrap {
  max-width: 680px;
  margin: 0 auto;
}

/* CF7 overrides */
.wpcf7 input[type="text"],
.wpcf7 input[type="email"],
.wpcf7 input[type="tel"],
.wpcf7 textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-dark);
  transition: border-color var(--transition);
}

.wpcf7 input:focus,
.wpcf7 textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.wpcf7 textarea { height: 140px; resize: vertical; }

.form-row {
  margin-bottom: 1.4rem;
}

.form-row label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-mid);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.form-row .required {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: 6px;
  vertical-align: middle;
}

.wpcf7 input[type="submit"] {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--color-dark);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
  margin-top: 0.5rem;
}

.wpcf7 input[type="submit"]:hover {
  background: var(--color-accent);
}

.privacy-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-light);
  margin-top: 1rem;
}

.privacy-note a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* =============================================
   Footer
============================================= */
#site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.6);
  padding: 48px 40px 28px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo a {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: #fff;
  display: block;
  margin-bottom: 0.8rem;
}

.footer-info p {
  font-size: 0.8rem;
  line-height: 2;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
  transition: color var(--transition);
}

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

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 20px;
  text-align: center;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

/* =============================================
   Scroll Animations
============================================= */
.fadein {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fadein:nth-child(2) { transition-delay: 0.1s; }
.fadein:nth-child(3) { transition-delay: 0.2s; }
.fadein:nth-child(4) { transition-delay: 0.15s; }
.fadein:nth-child(5) { transition-delay: 0.25s; }
.fadein:nth-child(6) { transition-delay: 0.2s; }

/* =============================================
   Single Post / Archive
============================================= */
.page-hero {
  height: 240px;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--header-h);
}

.page-hero-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: #fff;
  letter-spacing: 0.15em;
}

.content-area {
  max-width: 800px;
  margin: 60px auto;
  padding: 0 40px;
}

.post-meta {
  font-family: var(--font-latin);
  font-size: 0.82rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.post-content {
  font-size: 0.93rem;
  color: var(--color-mid);
  line-height: 2;
}

.post-content h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin: 2rem 0 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-dark);
}

.post-content p { margin-bottom: 1.2rem; }
.post-content img { margin: 1.5rem 0; border-radius: var(--radius); }

.archive-list {
  max-width: 800px;
  margin: 60px auto;
  padding: 0 40px;
}

.archive-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.archive-item a {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  transition: color var(--transition);
}

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

.archive-item .date {
  font-family: var(--font-latin);
  font-size: 0.82rem;
  color: var(--color-accent);
  white-space: nowrap;
}

.archive-item .title {
  font-size: 0.9rem;
  color: var(--color-mid);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2rem;
  font-size: 0.82rem;
  color: var(--color-mid);
  transition: color var(--transition);
}

.back-link:hover { color: var(--color-accent); }

/* =============================================
   Responsive
============================================= */
@media (max-width: 900px) {
  .wrap { padding: 0 24px; }

  .global-nav,
  .header-tel { display: none; }

  .hamburger { display: flex; }

  #service .service-body {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .company-table th { width: 120px; }

  .footer-inner {
    flex-direction: column;
    gap: 2rem;
  }
}

@media (max-width: 560px) {
  :root { --header-h: 60px; }

  section { padding: 64px 0; }

  .works-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }

  .hero-news ul { gap: 1.2rem; }

  .hero-content { padding: 0 24px; }

  .content-area,
  .archive-list { padding: 0 20px; }

  #site-header { padding: 0 20px; }
}