/* ==========================================================================
   AOBANOVA ENERGY — Corporate site stylesheet
   深いネイビー × グリーン × 白を基調にした、落ち着いた企業サイトデザイン
   ========================================================================== */

:root {
  /* --- Color palette --- */
  --color-navy: #0b2340;
  --color-navy-deep: #071627;
  --color-navy-soft: #12335c;
  --color-green: #2fae66;
  --color-green-dark: #1f8a52;
  --color-green-soft: #e6f5ec;
  --color-white: #ffffff;
  --color-off-white: #f5f7f6;
  --color-border: #e1e6ea;
  --color-text: #16233a;
  --color-text-muted: #56657a;
  --color-text-on-navy: #dfe7ef;
  --color-text-on-navy-muted: #93a3b8;

  /* --- Typography --- */
  --font-jp: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --font-display: 'Space Grotesk', var(--font-jp);

  /* --- Layout --- */
  --container-width: 1180px;
  --section-padding: clamp(4.5rem, 8vw, 7rem);
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 18px;

  /* --- Motion --- */
  --transition-fast: 0.2s ease;
  --transition-base: 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

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

body.no-scroll {
  overflow: hidden;
}

h1, h2, h3, h4, p, ul, ol, dl, figure, blockquote, table {
  margin: 0;
}

ul, ol {
  list-style: none;
  padding: 0;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

input, textarea, select {
  font: inherit;
  color: inherit;
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-green);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid var(--color-green);
  outline-offset: 2px;
}

.sp-only {
  display: none;
}

.text-green {
  color: var(--color-green);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 2.1rem;
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
    color var(--transition-fast), transform var(--transition-fast);
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-green-dark);
  transform: translateY(-2px);
}

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

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

.btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover,
.btn-outline-light:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--color-white);
}

.btn-large {
  padding: 1.1rem 2.6rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   Header & navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-shrink: 0;
}

.logo-mark {
  width: 2.35rem;
  height: 2.35rem;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text-en {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--color-navy);
}

.logo-text-jp {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.global-nav ul {
  display: flex;
  gap: 1.9rem;
}

.global-nav a {
  position: relative;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text);
  padding-block: 0.3rem;
}

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

.global-nav a:hover::after {
  width: 100%;
}

.global-nav a[aria-current="page"] {
  color: var(--color-green-dark);
  font-weight: 700;
}

.global-nav a[aria-current="page"]::after {
  width: 100%;
}

.header-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  position: relative;
  flex-shrink: 0;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  position: absolute;
  left: 50%;
  width: 1.5rem;
  height: 2px;
  background: var(--color-navy);
  transform: translateX(-50%);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle-bar {
  top: 50%;
  transform: translate(-50%, -50%);
}

.nav-toggle-bar::before {
  content: '';
  top: -7px;
  left: 0;
  transform: none;
}

.nav-toggle-bar::after {
  content: '';
  top: 7px;
  left: 0;
  transform: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ==========================================================================
   Section shared
   ========================================================================== */

.section {
  padding-block: var(--section-padding);
}

.section--alt {
  background: var(--color-off-white);
}

.section--navy {
  background: var(--color-navy);
  color: var(--color-text-on-navy);
}

.section-header {
  max-width: 42rem;
  margin-bottom: 3.5rem;
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--color-green-dark);
  margin-bottom: 1rem;
}

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

.section-title {
  font-size: clamp(1.6rem, 3.6vw, 2.35rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.section-lead {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.section--navy .section-lead {
  color: var(--color-text-on-navy-muted);
}

/* ==========================================================================
   Page hero (sub-pages)
   ========================================================================== */

.page-hero {
  background: var(--color-navy);
  color: var(--color-white);
  padding-block: 5rem 4rem;
  position: relative;
  overflow: hidden;
}

.page-hero-pattern {
  position: absolute;
  top: 50%;
  right: -12rem;
  transform: translateY(-50%);
  width: 40rem;
  opacity: 0.7;
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  max-width: 42rem;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-on-navy-muted);
  margin-bottom: 1.25rem;
}

.breadcrumb a {
  color: var(--color-text-on-navy-muted);
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover {
  color: var(--color-white);
  border-color: currentColor;
}

.page-hero-title {
  font-size: clamp(2rem, 5vw, 2.85rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 1.1rem;
}

.page-hero-text {
  color: var(--color-text-on-navy-muted);
  font-size: 1.02rem;
  max-width: 36rem;
}

/* ==========================================================================
   Top page hero
   ========================================================================== */

.hero {
  position: relative;
  background: var(--color-navy);
  color: var(--color-white);
  overflow: hidden;
  padding-block: 6rem 5.5rem;
}

.hero-pattern {
  position: absolute;
  top: 50%;
  right: -14rem;
  transform: translateY(-50%);
  width: 46rem;
  opacity: 0.85;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 40rem;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-green);
  margin-bottom: 1.5rem;
}

.hero-eyebrow::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-green);
}

.hero-company {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-on-navy-muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.hero-title {
  font-size: clamp(2.1rem, 5.6vw, 3.4rem);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.hero-text {
  color: var(--color-text-on-navy-muted);
  font-size: 1.05rem;
  max-width: 34rem;
  margin-bottom: 2.5rem;
}

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

/* ==========================================================================
   Mission
   ========================================================================== */

.mission-statement {
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  font-weight: 700;
  line-height: 1.9;
  max-width: 46rem;
  color: var(--color-navy);
}

/* ==========================================================================
   Services grid
   ========================================================================== */

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px -24px rgba(11, 35, 64, 0.25);
  border-color: var(--color-green);
}

.service-icon {
  width: 3rem;
  height: 3rem;
  color: var(--color-green-dark);
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: var(--color-navy);
}

.service-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-green-dark);
}

.service-link .arrow {
  transition: transform var(--transition-fast);
}

.service-link:hover .arrow {
  transform: translateX(3px);
}

/* ==========================================================================
   Stats
   ========================================================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 2rem 1rem;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-card:first-child {
  border-left: none;
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 2.75rem);
  font-weight: 700;
  color: var(--color-green);
  line-height: 1.2;
}

.stat-unit {
  font-size: 1.1rem;
  font-weight: 500;
  margin-left: 0.15rem;
}

.stat-label {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-on-navy-muted);
}

/* ==========================================================================
   Reasons
   ========================================================================== */

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 2.5rem;
}

.reason-item {
  display: flex;
  gap: 1.25rem;
}

.reason-num {
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--color-green-soft);
  color: var(--color-green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.reason-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-navy);
}

.reason-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Sustainability teaser (top page)
   ========================================================================== */

.sustain-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.sustain-teaser-figure {
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sustain-teaser-figure img {
  width: 40%;
  opacity: 0.9;
}

.sustain-list {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.sustain-list li {
  padding-left: 1.6rem;
  position: relative;
  font-size: 0.94rem;
  color: var(--color-text-muted);
}

.sustain-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--color-green);
}

/* ==========================================================================
   News
   ========================================================================== */

.news-list {
  border-top: 1px solid var(--color-border);
}

.news-item {
  display: grid;
  grid-template-columns: 9rem 6rem 1fr;
  align-items: baseline;
  gap: 1.5rem;
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.news-date {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.news-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-green-dark);
  background: var(--color-green-soft);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  width: fit-content;
}

.news-item h3 {
  font-size: 0.98rem;
  font-weight: 500;
}

.news-more {
  margin-top: 2rem;
  text-align: right;
}

/* ==========================================================================
   CTA band
   ========================================================================== */

.cta-band {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-deep) 100%);
  color: var(--color-white);
  text-align: center;
}

.cta-band-title {
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-band-text {
  color: var(--color-text-on-navy-muted);
  max-width: 32rem;
  margin-inline: auto;
  margin-bottom: 2.25rem;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-navy-deep);
  color: var(--color-text-on-navy-muted);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-block: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.footer-logo .logo-mark {
  width: 2.1rem;
  height: 2.1rem;
}

.footer-logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
}

.footer-desc {
  font-size: 0.88rem;
  max-width: 22rem;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 1.1rem;
  letter-spacing: 0.03em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-col a {
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-address {
  font-size: 0.88rem;
  font-style: normal;
  line-height: 1.9;
}

.footer-bottom {
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.78rem;
}

.footer-disclaimer {
  background: rgba(255, 255, 255, 0.04);
}

.footer-disclaimer .container {
  padding-block: 1rem;
  font-size: 0.78rem;
  color: var(--color-text-on-navy-muted);
  text-align: center;
}

/* ==========================================================================
   Services page
   ========================================================================== */

.service-detail {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2.5rem;
  padding-block: 3rem;
  border-top: 1px solid var(--color-border);
}

.service-detail:last-child {
  border-bottom: 1px solid var(--color-border);
}

.service-detail-icon {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-md);
  background: var(--color-green-soft);
  color: var(--color-green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-detail-icon img {
  width: 2.1rem;
  height: 2.1rem;
}

.service-detail h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.service-detail-lead {
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.service-detail-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 2rem;
}

.service-detail-points li {
  padding-left: 1.4rem;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.service-detail-points li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-green-dark);
  font-weight: 700;
}

/* ==========================================================================
   Process flow (services page)
   ========================================================================== */

.flow-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.flow-step {
  position: relative;
  padding: 2rem 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.flow-num {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-green-dark);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.flow-step h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.flow-step p {
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Sustainability page
   ========================================================================== */

.initiative-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

.initiative-card {
  padding: 2.25rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.initiative-icon {
  width: 2.75rem;
  height: 2.75rem;
  color: var(--color-green-dark);
  margin-bottom: 1.25rem;
}

.initiative-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.75rem;
}

.initiative-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

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

.goal-card {
  padding: 1.75rem;
  border-radius: var(--radius-md);
  background: var(--color-off-white);
  text-align: center;
}

.goal-year {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-green-dark);
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.goal-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Company page
   ========================================================================== */

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

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

.company-table th,
.company-table td {
  text-align: left;
  padding: 1.1rem 0;
  font-size: 0.94rem;
  vertical-align: top;
}

.company-table th {
  width: 11rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

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

.history-list {
  display: flex;
  flex-direction: column;
}

.history-item {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1.5rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.history-item:last-child {
  border-bottom: 1px solid var(--color-border);
}

.history-year {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-navy);
}

.history-item p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Contact page — form
   ========================================================================== */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3.5rem;
  align-items: start;
}

.contact-info-card {
  background: var(--color-off-white);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}

.contact-info-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.contact-info-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.contact-info-list dt {
  font-size: 0.78rem;
  color: var(--color-green-dark);
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.contact-info-list dd {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text);
}

.form-row {
  margin-bottom: 1.5rem;
}

.form-row--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-row label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--color-navy);
}

.required {
  color: var(--color-green-dark);
  font-size: 0.68rem;
  font-weight: 700;
  border: 1px solid var(--color-green-dark);
  border-radius: 3px;
  padding: 0.1rem 0.4rem;
  margin-left: 0.35rem;
}

.form-row input,
.form-row textarea,
.form-row select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  font-size: 0.96rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px var(--color-green-soft);
  outline: none;
}

.form-row textarea {
  resize: vertical;
}

.form-error {
  color: #c0392b;
  font-size: 0.8rem;
  margin-top: 0.4rem;
  min-height: 1rem;
}

.form-row input.is-invalid,
.form-row textarea.is-invalid,
.form-row select.is-invalid {
  border-color: #c0392b;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.form-checkbox input {
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--color-green);
}

.form-checkbox label {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.form-checkbox a {
  color: var(--color-green-dark);
  font-weight: 700;
  border-bottom: 1px solid currentColor;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  background: var(--color-off-white);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
}

.form-success {
  text-align: center;
  padding: 3.5rem 1.5rem;
  background: var(--color-green-soft);
  border-radius: var(--radius-lg);
}

.form-success-icon {
  width: 3.25rem;
  height: 3.25rem;
  line-height: 3.25rem;
  border-radius: 50%;
  background: var(--color-green);
  color: var(--color-white);
  font-size: 1.4rem;
  margin: 0 auto 1.25rem;
}

.form-success h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.9rem;
}

.form-success p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Scroll reveal (subtle)
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================================
   Responsive — tablet
   ========================================================================== */

@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 2rem;
  }

  .stat-card:nth-child(3) {
    border-left: none;
  }

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

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

  .goal-list {
    grid-template-columns: 1fr;
  }

  .sustain-teaser {
    grid-template-columns: 1fr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-col {
    grid-column: span 2;
  }
}

/* ==========================================================================
   Responsive — mobile
   ========================================================================== */

@media (max-width: 720px) {
  :root {
    --section-padding: 3.5rem;
  }

  .sp-only {
    display: inline;
  }

  .global-nav {
    position: fixed;
    inset: 0;
    top: 0;
    background: var(--color-navy);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 150;
  }

  .global-nav.is-open {
    transform: translateX(0);
  }

  .global-nav ul {
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
  }

  .global-nav a {
    color: var(--color-white);
    font-size: 1.1rem;
  }

  .global-nav a[aria-current="page"] {
    color: var(--color-green);
  }

  .nav-toggle {
    display: block;
    z-index: 160;
  }

  .site-header.is-nav-open .nav-toggle-bar {
    background: transparent;
  }

  .service-grid,
  .service-detail-points,
  .flow-list {
    grid-template-columns: 1fr;
  }

  .service-detail {
    grid-template-columns: 1fr;
  }

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

  .stat-card:nth-child(odd) {
    border-left: none;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-brand-col {
    grid-column: auto;
  }

  .form-row--split {
    grid-template-columns: 1fr;
  }

  .history-item {
    grid-template-columns: 5rem 1fr;
  }

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

@media (max-width: 420px) {
  .container {
    padding-inline: 1.1rem;
  }
}