/* ===================================
   農建 NOUKEN — Design System
   Premium Agricultural Construction Site
   =================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;600;700;900&family=Noto+Serif+JP:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors - Natural & Agricultural Palette */
  --clr-primary: #2d6a4f;
  --clr-primary-dark: #1b4332;
  --clr-primary-light: #40916c;
  --clr-primary-pale: #b7e4c7;
  --clr-primary-bg: #f0f7f4;

  --clr-accent: #d4a373;
  --clr-accent-dark: #b07d52;
  --clr-accent-light: #e9c8a4;

  --clr-earth: #6b4226;
  --clr-earth-light: #a3785a;

  --clr-gold: #c9a227;
  --clr-gold-light: #f0d96b;

  --clr-white: #ffffff;
  --clr-off-white: #fafaf7;
  --clr-cream: #f5f1eb;
  --clr-gray-50: #f8f9fa;
  --clr-gray-100: #e9ecef;
  --clr-gray-200: #dee2e6;
  --clr-gray-300: #ced4da;
  --clr-gray-500: #6c757d;
  --clr-gray-700: #495057;
  --clr-gray-800: #343a40;
  --clr-gray-900: #212529;
  --clr-dark: #1a1a2e;

  /* Typography */
  --ff-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-serif: 'Noto Serif JP', 'Georgia', serif;

  --fs-hero: clamp(1.8rem, 3.5vw, 3rem);
  --fs-h1: clamp(1.8rem, 3.5vw, 2.8rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.2rem);
  --fs-h3: clamp(1.2rem, 2.5vw, 1.6rem);
  --fs-h4: clamp(1rem, 2vw, 1.25rem);
  --fs-body: clamp(0.9rem, 1.5vw, 1.05rem);
  --fs-small: 0.875rem;
  --fs-xs: 0.8rem;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --section-padding: clamp(4rem, 8vw, 8rem);

  /* Layout */
  --max-w: 1200px;
  --max-w-narrow: 900px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(45,106,79,0.15);

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-base: 0.4s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ff-sans);
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--clr-gray-800);
  background-color: var(--clr-off-white);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul, ol {
  list-style: none;
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: var(--max-w-narrow);
}

.section-padding {
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

.stagger > * {
  transition-delay: calc(var(--i, 0) * 0.12s);
}

/* --- Section Heading --- */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ff-sans);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--clr-primary);
  border-radius: 2px;
}

.section-title {
  font-family: var(--ff-serif);
  font-size: var(--fs-h1);
  font-weight: 600;
  color: var(--clr-gray-900);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--fs-body);
  color: var(--clr-gray-500);
  max-width: 640px;
  line-height: 1.9;
}

.text-center {
  text-align: center;
}

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

.section-label-center {
  justify-content: center;
}

/* ============================
   HEADER / NAVIGATION
   ============================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: all 0.4s var(--ease-out);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 20px rgba(0,0,0,0.06);
  padding: 0.6rem 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo img {
  height: 64px;
  width: auto;
  transition: height var(--transition-base);
}

.site-header.scrolled .logo img {
  height: 48px;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-desktop a {
  position: relative;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--clr-white);
  padding: 0.5rem 1rem;
  transition: color var(--transition-fast);
}

.site-header.scrolled .nav-desktop a {
  color: var(--clr-gray-700);
}

.nav-desktop a:hover {
  color: var(--clr-primary-pale);
}

.site-header.scrolled .nav-desktop a:hover {
  color: var(--clr-primary);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--clr-primary-pale);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.site-header.scrolled .nav-desktop a::after {
  background: var(--clr-primary);
}

.nav-desktop a:hover::after {
  width: 60%;
}

.nav-cta {
  padding: 0.55rem 1.5rem !important;
  background: var(--clr-primary);
  color: var(--clr-white) !important;
  border-radius: var(--radius-full);
  font-weight: 600 !important;
  font-size: var(--fs-xs) !important;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast) !important;
}

.nav-cta:hover {
  background: var(--clr-primary-dark) !important;
  color: var(--clr-white) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(45,106,79,0.3);
}

.nav-cta::after {
  display: none !important;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: all 0.3s var(--ease-out);
}

.site-header.scrolled .hamburger span {
  background: var(--clr-gray-800);
}

.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);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(26, 26, 46, 0.97);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-out);
}

.nav-mobile.open {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile a {
  font-family: var(--ff-serif);
  font-size: 1.3rem;
  color: var(--clr-white);
  padding: 0.5rem 1rem;
  transition: color var(--transition-fast);
}

.nav-mobile a:hover {
  color: var(--clr-primary-pale);
}

/* ============================
   HERO SECTION
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

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

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: kenBurns 12s ease-in-out infinite alternate;
}

@keyframes kenBurns {
  0% { transform: scale(1.05) translate(0, 0); }
  100% { transform: scale(1.12) translate(-1%, -1%); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(27, 67, 50, 0.82) 0%,
    rgba(26, 26, 46, 0.7) 50%,
    rgba(45, 106, 79, 0.6) 100%
  );
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0;
  padding-top: 6rem;
  padding-bottom: 5rem;
  width: 100%;
}

.hero-content {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 2;
}

/* --- Hero Portrait: large fade style --- */
.hero-illustration {
  position: absolute;
  right: -2%;
  bottom: 0;
  width: clamp(340px, 38vw, 560px);
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1;
  pointer-events: none;
}

.hero-illustration img {
  width: 100%;
  height: 90%;
  object-fit: cover;
  object-position: top center;
  mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 65%,
    rgba(0,0,0,0.6) 82%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 65%,
    rgba(0,0,0,0.6) 82%,
    transparent 100%
  );
  filter: brightness(1.05) contrast(1.05);
  opacity: 0.85;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--clr-primary-pale);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--clr-primary-pale);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-family: var(--ff-serif);
  font-size: var(--fs-hero);
  font-weight: 700;
  color: var(--clr-white);
  line-height: 1.4;
  margin-bottom: var(--space-md);
}

.hero h1 span {
  display: inline;
  background: linear-gradient(120deg, var(--clr-primary-pale), var(--clr-gold-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: rgba(255,255,255,0.85);
  line-height: 2;
  margin-bottom: var(--space-lg);
}

.hero-checks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  margin-bottom: var(--space-lg);
}

.hero-check {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.9);
  line-height: 1.6;
}

.hero-check .check-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: rgba(183, 228, 199, 0.2);
  border: 1px solid rgba(183, 228, 199, 0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.hero-check .check-icon svg {
  width: 11px;
  height: 11px;
  fill: var(--clr-primary-pale);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--ff-sans);
  font-size: var(--fs-small);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--clr-white);
  color: var(--clr-primary-dark);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
  background: var(--clr-primary-pale);
  color: var(--clr-primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--clr-white);
  border: 1.5px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-2px);
}

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

.btn-green:hover {
  background: var(--clr-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(45,106,79,0.3);
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* Hero scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255,255,255,0.5);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
}

.scroll-indicator .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator .mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 3px;
  animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ============================
   CONSULTATION THEMES
   ============================ */
.consult {
  background: var(--clr-white);
}

.consult-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.consult-category {
  position: relative;
}

.consult-category-title {
  font-family: var(--ff-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--clr-primary-pale);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.consult-category-title .cat-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.consult-category-title .cat-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--clr-white);
}

.consult-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.consult-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--clr-primary-bg);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: default;
  border: 1px solid transparent;
}

.consult-item:hover {
  background: var(--clr-white);
  border-color: var(--clr-primary-pale);
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
}

.consult-item .item-num {
  width: 28px;
  height: 28px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  font-size: var(--fs-xs);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.consult-item p {
  font-size: var(--fs-small);
  color: var(--clr-gray-700);
  line-height: 1.6;
}

/* ============================
   REASONS / WHY CHOOSE US
   ============================ */
.reasons {
  background: linear-gradient(180deg, var(--clr-off-white) 0%, var(--clr-cream) 100%);
  position: relative;
  overflow: hidden;
}

.reasons::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(45,106,79,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.reason-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.reason-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.reason-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-primary-light));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.reason-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.reason-card:hover::before {
  opacity: 1;
}

.reason-num {
  font-family: var(--ff-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--clr-primary-pale);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.reason-card h3 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.reason-card p {
  font-size: var(--fs-small);
  color: var(--clr-gray-500);
  line-height: 1.9;
}

/* ============================
   SERVICES
   ============================ */
.services {
  background: var(--clr-primary-dark);
  color: var(--clr-white);
  position: relative;
  overflow: hidden;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('assets/a01beb6cd3a8650ac09031d677a02d21.jpg') center/cover;
  opacity: 0.08;
  pointer-events: none;
}

.services .section-label {
  color: var(--clr-primary-pale);
}

.services .section-label::before {
  background: var(--clr-primary-pale);
}

.services .section-title {
  color: var(--clr-white);
}

.services .section-subtitle {
  color: rgba(255,255,255,0.6);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  position: relative;
  z-index: 1;
}

.service-card {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  overflow: hidden;
  position: relative;
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(45,106,79,0.2) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.service-card:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-6px);
}

.service-card:hover::after {
  opacity: 1;
}

.service-card-img {
  width: 100%;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.service-card:hover .service-card-img img {
  transform: scale(1.08);
}

.service-card h3 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--clr-white);
}

.service-card p {
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
}

/* ============================
   CASE STUDIES / 施工事例
   ============================ */
.cases {
  background: var(--clr-white);
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.case-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  background: var(--clr-white);
  border: 1px solid var(--clr-gray-100);
}

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

.case-card-img {
  width: 100%;
  height: 280px;
  overflow: hidden;
  position: relative;
}

.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

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

.case-card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: var(--fs-xs);
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
}

.case-card-body {
  padding: var(--space-md) var(--space-lg);
}

.case-card-body h3 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--clr-gray-900);
  margin-bottom: 0.5rem;
}

.case-card-body p {
  font-size: var(--fs-small);
  color: var(--clr-gray-500);
  line-height: 1.7;
}

/* ============================
   SUBSIDY SUPPORT / 補助金
   ============================ */
.subsidy {
  background: linear-gradient(180deg, var(--clr-primary-bg) 0%, var(--clr-white) 100%);
  position: relative;
}

.subsidy-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.flow-step {
  text-align: center;
  position: relative;
}

.flow-step::after {
  content: '';
  position: absolute;
  top: 32px;
  right: -20%;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-primary-pale), var(--clr-primary));
}

.flow-step:last-child::after {
  display: none;
}

.flow-step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-sm);
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-light));
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-serif);
  font-size: 1.3rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 20px rgba(45,106,79,0.25);
}

.flow-step h4 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--clr-gray-900);
  margin-bottom: 0.5rem;
}

.flow-step p {
  font-size: var(--fs-xs);
  color: var(--clr-gray-500);
  line-height: 1.7;
}

.subsidy-desc {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  font-size: var(--fs-body);
  color: var(--clr-gray-700);
  line-height: 2;
  padding: var(--space-lg);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border-left: 4px solid var(--clr-primary);
}

/* ============================
   FAQ
   ============================ */
.faq {
  background: var(--clr-white);
}

.faq-list {
  max-width: 800px;
  margin: var(--space-xl) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  border: 1px solid var(--clr-gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--clr-primary-pale);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--clr-primary-bg);
}

.faq-question h4 {
  font-family: var(--ff-sans);
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--clr-gray-800);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.faq-question h4 .q-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  font-size: var(--fs-xs);
  font-weight: 700;
  flex-shrink: 0;
}

.faq-toggle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--clr-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.faq-toggle svg {
  width: 12px;
  height: 12px;
  fill: var(--clr-gray-500);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-toggle {
  background: var(--clr-primary);
}

.faq-item.open .faq-toggle svg {
  fill: var(--clr-white);
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out), padding 0.4s var(--ease-out);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  padding-left: calc(1.5rem + 28px + 0.75rem);
}

.faq-answer-inner p {
  font-size: var(--fs-small);
  color: var(--clr-gray-500);
  line-height: 1.9;
}

/* ============================
   CTA BANNER
   ============================ */
.cta-banner {
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

.cta-banner-bg {
  position: absolute;
  inset: 0;
}

.cta-banner-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-banner-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27,67,50,0.9) 0%, rgba(45,106,79,0.85) 100%);
}

.cta-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-banner-content h2 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h2);
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: var(--space-sm);
}

.cta-banner-content p {
  font-size: var(--fs-body);
  color: rgba(255,255,255,0.75);
  margin-bottom: var(--space-lg);
  line-height: 1.9;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================
   COMPANY INFO
   ============================ */
.company {
  background: var(--clr-cream);
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  align-items: start;
}

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

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

.company-table th,
.company-table td {
  padding: 1rem 0;
  font-size: var(--fs-small);
  text-align: left;
  vertical-align: top;
}

.company-table th {
  font-weight: 600;
  color: var(--clr-gray-900);
  width: 140px;
  white-space: nowrap;
  padding-right: 1.5rem;
}

.company-table td {
  color: var(--clr-gray-700);
  line-height: 1.7;
}

.company-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.company-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================
   FOOTER
   ============================ */
.site-footer {
  background: var(--clr-dark);
  color: var(--clr-white);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo img {
  height: 42px;
  margin-bottom: var(--space-sm);
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.5);
  line-height: 1.9;
  max-width: 320px;
}

.footer-nav h4,
.footer-contact h4 {
  font-family: var(--ff-sans);
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-nav a {
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.5);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-nav a::before {
  content: '';
  width: 0;
  height: 1px;
  background: var(--clr-primary-pale);
  transition: width var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--clr-primary-pale);
}

.footer-nav a:hover::before {
  width: 12px;
}

.footer-contact p {
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.5);
  line-height: 1.9;
}

.footer-bottom {
  padding-top: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.3);
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }

  .hero-checks {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    flex-direction: column;
  }

  .hero-illustration {
    display: none;
  }

  .scroll-indicator {
    display: none;
  }

  .reason-cards {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .consult-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .subsidy-flow {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .flow-step::after {
    display: none;
  }

  .company-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .hero-inner {
    padding-top: 5rem;
    padding-bottom: 4rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    justify-content: center;
  }

  .subsidy-flow {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .reason-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================
   BACK TO TOP
   ============================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(45,106,79,0.3);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  z-index: 100;
  border: none;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--clr-primary-dark);
  transform: translateY(-3px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ============================
   LOADING ANIMATION
   ============================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--clr-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s var(--ease-out), visibility 0.6s var(--ease-out);
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
}

.loader-logo {
  animation: loaderPulse 1.2s ease-in-out infinite;
}

.loader-logo img {
  height: 60px;
  filter: brightness(0) invert(1);
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.4; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1); }
}

/* --- Parallax Image Strip --- */
.image-strip {
  height: 300px;
  overflow: hidden;
  position: relative;
}

.image-strip img {
  width: 100%;
  height: 140%;
  object-fit: cover;
  object-position: center;
  transform: translateY(-15%);
}

.image-strip::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--clr-white) 0%, transparent 15%, transparent 85%, var(--clr-white) 100%);
  pointer-events: none;
}

/* ============================
   CONTACT PAGE FORM
   ============================ */
.contact-page {
  background: var(--clr-off-white);
  min-height: calc(100vh - 200px);
}

.contact-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--clr-white);
  padding: clamp(2rem, 5vw, 4rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(0,0,0,0.04);
}

.contact-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.contact-header h1 {
  font-family: var(--ff-serif);
  font-size: var(--fs-h2);
  color: var(--clr-gray-900);
  margin-bottom: var(--space-sm);
}

.contact-header p {
  color: var(--clr-gray-500);
  line-height: 1.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--clr-gray-800);
}

.required-badge {
  color: #e53e3e;
  font-size: 0.8em;
  margin-left: 4px;
}

.form-control {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  background: #f8fafc;
  font-family: inherit;
  font-size: var(--fs-body);
  color: var(--clr-gray-900);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--clr-primary-pale);
  background: var(--clr-white);
  box-shadow: 0 0 0 3px rgba(45,106,79,0.1);
}

textarea.form-control {
  min-height: 180px;
  resize: vertical;
}

.form-submit-wrapper {
  text-align: center;
  margin-top: var(--space-lg);
}

.btn-submit {
  width: 100%;
  max-width: 320px;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

@media (max-width: 768px) {
  .contact-container {
    padding: 2rem 1.5rem;
  }
}