/* =========================================
   岐栄工業 採用サイト — style.css
   フォント: Noto Serif JP / Noto Sans JP (Google Fonts)
   アイコン: Tabler Icons (CDN)
   ========================================= */

/* ===== CSS VARIABLES ===== */
:root {
  --sand: #f5f0e8;
  --warm: #e8dfd0;
  --stone: #c4b49a;
  --earth: #8c7355;
  --dark: #2c2318;
  --mid: #5a4a38;
  --text: #2c2318;
  --muted: #8c7d6e;
  --line: #d4c8b8;
  --white: #faf8f5;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--white);
  color: var(--text);
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  transition: background 0.4s, padding 0.4s;
}

.nav.scrolled {
  background: rgba(250, 248, 245, 0.96);
  backdrop-filter: blur(10px);
  padding: 14px 40px;
  border-bottom: 1px solid var(--line);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Noto Serif JP', serif;
  font-size: 16px;
  letter-spacing: 0.12em;
  color: white;
  transition: color 0.4s;
}

.nav-mark-wrap {
  position: relative;
  width: 26px;
  height: 26px;
  display: inline-block;
}

.nav-mark {
  width: 26px;
  height: 26px;
  display: block;
  position: absolute;
  inset: 0;
  transition: opacity 0.4s;
}

.nav-mark-dark {
  opacity: 0;
}

.nav.scrolled .nav-mark-light {
  opacity: 0;
}

.nav.scrolled .nav-mark-dark {
  opacity: 1;
}

.nav.scrolled .nav-logo {
  color: var(--dark);
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.3s;
}

.nav.scrolled .nav-links a {
  color: var(--muted);
}

.nav-links a:hover {
  color: white;
}

.nav.scrolled .nav-links a:hover {
  color: var(--dark);
}

.nav-btn {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.15em;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: white;
  background: transparent;
  padding: 9px 22px;
  cursor: pointer;
  transition: all 0.3s;
  font-family: 'Noto Sans JP', sans-serif;
  text-decoration: none;
}

.nav.scrolled .nav-btn {
  border-color: var(--stone);
  color: var(--dark);
}

/* ===== HERO SLIDER ===== */
.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  display: flex;
  align-items: flex-end;
  padding: 80px 60px;
}

.slide.active {
  opacity: 1;
}

.slide-bg-1 {
  background: linear-gradient(160deg, rgba(61,46,30,0.55) 0%, rgba(90,66,50,0.35) 45%, rgba(140,106,74,0.25) 100%), url('images/w/hero-1.jpg');
  background-size: cover;
  background-position: center;
}

.slide-bg-2 {
  background: linear-gradient(150deg, rgba(20,26,20,0.6) 0%, rgba(30,45,30,0.4) 45%, rgba(60,80,60,0.25) 100%), url('images/w/hero-2.jpg');
  background-size: cover;
  background-position: center 70%;
}

.slide-bg-3 {
  background: linear-gradient(150deg, rgba(18,18,28,0.6) 0%, rgba(30,30,45,0.4) 45%, rgba(60,65,90,0.25) 100%), url('images/w/hero-3.jpg');
  background-size: cover;
  background-position: center;
}

.frame-deco {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 12, 5, 0.75) 0%, rgba(20, 12, 5, 0.2) 50%, transparent 100%);
}

.slide-content {
  position: relative;
  z-index: 2;
}

.slide-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--stone);
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s 0.3s, transform 0.8s 0.3s;
}

.slide.active .slide-label {
  opacity: 1;
  transform: translateY(0);
}

.slide-title {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 300;
  color: white;
  line-height: 1.2;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s 0.5s, transform 0.8s 0.5s;
}

.slide.active .slide-title {
  opacity: 1;
  transform: translateY(0);
}

.slide-sub {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  max-width: 400px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s 0.7s, transform 0.8s 0.7s;
}

.slide.active .slide-sub {
  opacity: 1;
  transform: translateY(0);
}

.slide-dots {
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: all 0.3s;
}

.dot.active {
  background: white;
  transform: scale(1.4);
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.6);
  z-index: 10;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.4);
  animation: scrollAnim 2s infinite;
}

@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-l {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-l.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ===== SECTION BASE ===== */
.section {
  padding: 100px 60px;
}

.sec-tag {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--earth);
  margin-bottom: 12px;
  display: block;
}

.sec-h {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(22px, 3.5vw, 38px);
  font-weight: 300;
  color: var(--dark);
  line-height: 1.4;
  margin-bottom: 20px;
}

.sec-body {
  font-size: 14px;
  color: var(--muted);
  line-height: 2;
  max-width: 560px;
}

/* ===== ABOUT ===== */
.about {
  background: var(--white);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}

.about-text {
  padding: 100px 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-visual {
  position: relative;
  min-height: 480px;
  overflow: hidden;
}

.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  filter: saturate(0.9) contrast(1.05);
  transition: transform 8s ease;
}

.about-visual:hover .about-photo {
  transform: scale(1.06);
}

.about-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, rgba(44,35,24,0.35) 0%, rgba(44,35,24,0.05) 55%, rgba(44,35,24,0.4) 100%);
  pointer-events: none;
}

.about-stat-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  margin-top: 48px;
}

.astat {
  background: var(--white);
  padding: 20px 24px;
}

.astat-num {
  font-family: 'Noto Serif JP', serif;
  font-size: 28px;
  font-weight: 300;
  color: var(--earth);
}

.astat-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-top: 4px;
}

/* ===== WORKS ===== */
.works {
  background: var(--sand);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--line);
  margin-top: 56px;
}

.wcard {
  background: var(--white);
  padding: 36px 28px;
  transition: background 0.3s;
}

.wcard:hover {
  background: var(--warm);
}

.wcard-num {
  font-size: 32px;
  font-weight: 200;
  color: var(--line);
  font-family: 'Noto Serif JP', serif;
  margin-bottom: 20px;
}

.wcard-icon {
  margin-bottom: 16px;
}

.wcard-icon i {
  font-size: 24px;
  color: var(--earth);
}

.wcard-title {
  font-size: 15px;
  color: var(--dark);
  margin-bottom: 8px;
  font-weight: 400;
}

.wcard-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}

/* ===== GALLERY ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.gphoto {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.gphoto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.92) contrast(1.05);
  transition: transform 6s ease;
}

.gphoto:hover img {
  transform: scale(1.12);
}

.gphoto::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 12, 5, 0.75) 0%, rgba(20, 12, 5, 0) 45%);
  z-index: 1;
}

.gphoto-cap {
  position: absolute;
  left: 20px;
  bottom: 16px;
  z-index: 2;
  color: white;
  font-size: 12px;
  letter-spacing: 0.15em;
}

/* ===== REASONS ===== */
.reasons {
  background: var(--dark);
  padding: 100px 60px;
}

.reasons .sec-tag {
  color: var(--stone);
}

.reasons .sec-h {
  color: white;
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-top: 56px;
}

.rcard {
  border-top: 1px solid rgba(196, 180, 154, 0.3);
  padding-top: 28px;
}

.rcard-num {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--stone);
  margin-bottom: 16px;
}

.rcard-title {
  font-size: 16px;
  color: white;
  margin-bottom: 12px;
  line-height: 1.5;
  font-weight: 400;
}

.rcard-body {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.9;
}

/* ===== VOICES ===== */
.voices {
  background: var(--warm);
  padding: 100px 60px;
}

.voices-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  margin-top: 56px;
}

.vcard {
  background: var(--white);
  padding: 36px 32px;
}

.vcard-q {
  font-size: 20px;
  color: var(--stone);
  margin-bottom: 16px;
  font-family: 'Noto Serif JP', serif;
  font-weight: 300;
}

.vcard-body {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 24px;
  border-left: 2px solid var(--stone);
  padding-left: 16px;
}

.vcard-name {
  font-size: 13px;
  color: var(--dark);
  font-weight: 400;
}

.vcard-role {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  letter-spacing: 0.05em;
}

/* ===== FLOW ===== */
.flow {
  background: var(--white);
  padding: 100px 60px;
}

.flow-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0;
  margin-top: 56px;
  position: relative;
}

.flow-row::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: var(--line);
}

.fstep {
  text-align: center;
  padding: 0 16px;
  position: relative;
}

.fstep-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--warm);
  border: 1px solid var(--stone);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 14px;
  color: var(--earth);
  font-family: 'Noto Serif JP', serif;
  position: relative;
  z-index: 1;
}

.fstep-title {
  font-size: 14px;
  color: var(--dark);
  margin-bottom: 6px;
  font-weight: 400;
}

.fstep-desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== JOBS ===== */
.jobs {
  background: var(--sand);
  padding: 100px 60px;
}

.jobs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px;
  background: var(--line);
  margin-top: 56px;
}

.jcard {
  background: var(--white);
  padding: 44px 36px;
  transition: background 0.3s;
}

.jcard:hover {
  background: var(--warm);
}

.jtag {
  font-size: 10px;
  letter-spacing: 0.2em;
  border: 1px solid var(--stone);
  color: var(--earth);
  padding: 4px 12px;
  display: inline-block;
  margin-bottom: 24px;
}

.jcard-title {
  font-family: 'Noto Serif JP', serif;
  font-size: 22px;
  font-weight: 300;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.4;
}

.jcard-salary {
  font-size: 24px;
  font-weight: 300;
  color: var(--earth);
  font-family: 'Noto Serif JP', serif;
  margin: 16px 0 20px;
}

.jcard-salary span {
  font-size: 13px;
  color: var(--muted);
}

.jcard-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.jctag {
  font-size: 11px;
  color: var(--muted);
  background: var(--sand);
  padding: 4px 10px;
}

.jbtn {
  display: block;
  width: 100%;
  padding: 13px;
  background: var(--dark);
  color: white;
  border: none;
  font-size: 12px;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: background 0.3s;
  font-family: 'Noto Sans JP', sans-serif;
  text-decoration: none;
  text-align: center;
  box-sizing: border-box;
}

.jbtn:hover {
  background: var(--earth);
}

.jbtn.ghost {
  background: transparent;
  color: var(--dark);
  border: 1px solid var(--stone);
}

.jbtn.ghost:hover {
  background: var(--warm);
  border-color: var(--earth);
}

.jobs-grid-single {
  display: block;
  background: none;
}

.jcard-wide {
  border: 1px solid var(--line);
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.jcard-wide .jcard-title {
  font-size: 26px;
}

.jcard-wide .jcard-tags {
  justify-content: center;
}

.jbtn-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  margin-top: 12px;
  text-decoration: none;
}

/* ===== CTA ===== */
.cta {
  position: relative;
  overflow: hidden;
  padding: 120px 60px;
  text-align: center;
  background: linear-gradient(160deg, rgba(28,20,12,0.88) 0%, rgba(60,45,32,0.8) 45%, rgba(90,70,50,0.6) 100%), url('images/w/hero-3.jpg');
  background-size: cover;
  background-position: center 30%;
}

.cta-body {
  position: relative;
  z-index: 2;
}

.cta-tag {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--stone);
  margin-bottom: 20px;
  display: block;
}

.cta h2 {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(24px, 4vw, 44px);
  font-weight: 300;
  color: white;
  line-height: 1.3;
  margin-bottom: 20px;
}

.cta p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.9;
  margin-bottom: 44px;
}

.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cbtn {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.15em;
  padding: 14px 36px;
  cursor: pointer;
  border: none;
  font-family: 'Noto Sans JP', sans-serif;
  transition: opacity 0.3s;
  text-decoration: none;
}

.cbtn:hover {
  opacity: 0.85;
}

.cbtn-w {
  background: white;
  color: var(--dark);
}

.cbtn-g {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  padding: 48px 60px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 24px;
}

.f-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.f-mark {
  width: 40px;
  height: 40px;
  opacity: 0.9;
  flex-shrink: 0;
}

.f-logo {
  font-family: 'Noto Serif JP', serif;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--warm);
  margin-bottom: 8px;
}

.f-info {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
}

.f-copy {
  font-size: 11px;
  color: rgba(140, 125, 110, 0.6);
  letter-spacing: 0.05em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav {
    padding: 16px 20px;
  }
  .nav-links {
    display: none;
  }
  .hero .slide {
    padding: 60px 24px;
  }
  .about {
    grid-template-columns: 1fr;
  }
  .about-visual {
    min-height: 260px;
  }
  .about-text,
  .section,
  .reasons,
  .voices,
  .flow,
  .jobs,
  .cta {
    padding: 64px 24px;
  }
  .flow-row::before {
    display: none;
  }
  .footer {
    padding: 36px 24px;
    flex-direction: column;
    align-items: flex-start;
  }
}