/* ====================================================================
   Kenma Design — Brand Style System v3
   Concept: "つくるだけでは終わらない。育てるWeb。"
   Motif: Two overlapping circles (brand logo) + arc/bridge abstraction
   ==================================================================== */

/* ──────────────────────────────────────────────────────────────────
   DESIGN TOKENS
   ────────────────────────────────────────────────────────────────── */
:root {
  /* ── Colors ── */
  --c-cream: #F5F3EE;
  /* 主背景 / 漆喰・和紙 */
  --c-cream-d: #EDEBE5;
  /* やや濃い背景 */
  --c-cream-mid: #EAE7E0;
  /* セクション区切り */
  --c-white: #FFFFFF;

  --c-green: #1E3A2B;
  /* ブランドグリーン（ロゴ色）*/
  --c-green-dk: #142519;
  /* フッター・暗背景 */
  --c-green-lt: #2E5040;
  /* ホバー・明るい緑 */

  --c-orange: #C85A32;
  /* 差し色 テラコッタ（最小限に使用） */

  --c-ink: #1C1C1A;
  /* 本文 */
  --c-muted: #5C5C58;
  /* サブテキスト */
  --c-subtle: #8A8884;
  /* キャプション・補足 */
  --c-border: #DEDAD2;
  /* ボーダー */
  --c-border-lt: #E8E5DE;
  /* 薄いボーダー */

  /* ── Typography ── */
  --f-serif: "Cormorant Garamond", "Noto Serif JP", Georgia, serif;
  --f-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;

  /* ── Spacing ── */
  --max-w: 1080px;
  --gap: clamp(24px, 4vw, 56px);

  /* ── Motion ── */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--f-sans);
  background: var(--c-cream);
  color: var(--c-ink);
  line-height: 1.85;
  letter-spacing: 0.03em;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

details summary {
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

/* ──────────────────────────────────────────────────────────────────
   SHARED UTILITIES
   ────────────────────────────────────────────────────────────────── */

/* Section label (eyebrow) */
.sec-eyebrow {
  display: block;
  font-family: var(--f-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  margin-bottom: 14px;
}

/* Section heading */
.sec-title {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.25;
  color: var(--c-green);
  letter-spacing: 0.02em;
}

/* Section header block */
.sec-head {
  margin-bottom: 60px;
}

/* Section container */
.sec-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
  position: relative;
}

/* Section base spacing */
.section {
  padding: clamp(96px, 12vw, 170px) 0;
  position: relative;
}

/* ── Decorative circles (background motif) ── */
.deco-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(30, 58, 43, 0.09);
  pointer-events: none;
  z-index: 0;
}

.deco-circle--left {
  width: clamp(320px, 42vw, 560px);
  height: clamp(320px, 42vw, 560px);
  top: 50%;
  left: -18%;
  transform: translateY(-50%);
}

.deco-circle--right {
  width: clamp(280px, 36vw, 480px);
  height: clamp(280px, 36vw, 480px);
  top: 10%;
  right: -12%;
}

.deco-circle--faq {
  width: clamp(240px, 30vw, 400px);
  height: clamp(240px, 30vw, 400px);
  bottom: 8%;
  left: -8%;
  border-color: rgba(200, 90, 50, 0.08);
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

.reveal--fade {
  transform: none;
}

.reveal--left {
  transform: translateX(-24px);
}

.reveal--right {
  transform: translateX(24px);
}

.reveal--left.in,
.reveal--right.in {
  transform: none;
}

/* ── Buttons ── */
/* Outline button (hero CTA) */
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-sans);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-green);
  border: 1.5px solid var(--c-green);
  padding: 14px 32px;
  border-radius: 2px;
  transition: background 0.35s var(--ease), color 0.35s, border-color 0.35s;
}

.btn-outline:hover {
  background: var(--c-green);
  color: var(--c-white);
  border-color: var(--c-green);
}

.btn-outline__arrow {
  font-size: 1rem;
  transition: transform 0.35s var(--ease);
}

.btn-outline:hover .btn-outline__arrow {
  transform: translateX(6px);
}

/* Filled green button (contact CTA) */
.btn-filled {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-sans);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-white);
  background: var(--c-green);
  padding: 16px 36px;
  border-radius: 2px;
  border: 1.5px solid var(--c-green);
  transition: background 0.35s var(--ease), border-color 0.35s;
}

.btn-filled:hover {
  background: var(--c-green-lt);
  border-color: var(--c-green-lt);
}

.btn-filled__arrow {
  font-size: 1rem;
  transition: transform 0.35s var(--ease);
}

.btn-filled:hover .btn-filled__arrow {
  transform: translateX(6px);
}


/* ──────────────────────────────────────────────────────────────────
   HEADER
   ────────────────────────────────────────────────────────────────── */
.hdr {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 200;
  transition: background 0.45s var(--ease), border-bottom-color 0.45s;
  border-bottom: 1px solid transparent;
}

.hdr.scrolled {
  background: rgba(245, 243, 238, 0.93);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--c-border);
}

.hdr__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.hdr__logo {
  display: flex;
  align-items: center;
}

.hdr__logo-img {
  height: 40px;
  width: auto;
  display: block;
  /* header-logo.png is on white bg — keep crisp */
}

/* Desktop nav */
.hdr__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.hdr__nav-link {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
  position: relative;
  padding: 2px 0;
  transition: color 0.3s;
}

.hdr__nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-green);
  transition: width 0.35s var(--ease);
}

.hdr__nav-link:hover {
  color: var(--c-green);
}

.hdr__nav-link:hover::after {
  width: 100%;
}

.hdr__nav-cta {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-green);
  border: 1px solid var(--c-green);
  padding: 8px 20px;
  border-radius: 2px;
  letter-spacing: 0.06em;
  transition: background 0.3s, color 0.3s;
}

.hdr__nav-cta:hover {
  background: var(--c-green);
  color: var(--c-white);
}

/* Hamburger */
.hdr__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  width: 32px;
}

.hdr__burger span {
  display: block;
  height: 1px;
  background: var(--c-green);
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile nav */
.hdr__sp-nav {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--c-cream);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  padding: 24px var(--gap) 36px;
  gap: 0;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.4s var(--ease), opacity 0.3s;
  pointer-events: none;
}

.hdr__sp-nav.open {
  transform: none;
  opacity: 1;
  pointer-events: all;
}

.hdr__sp-link {
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-green);
  padding: 16px 0;
  border-bottom: 1px solid var(--c-border-lt);
}

.hdr__sp-link:last-child {
  border-bottom: none;
}


/* ──────────────────────────────────────────────────────────────────
   HERO
   ────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

/* Background: bridge photo,淡く処理 */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  /* 淡く: brightness up, saturation down, slight blur */
  filter: brightness(1.25) saturate(0.55) contrast(0.9);
}

/* Right-side gradient veil: cream on left to transparent on right */
.hero__bg-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg,
      rgba(245, 243, 238, 0.96) 0%,
      rgba(245, 243, 238, 0.80) 38%,
      rgba(245, 243, 238, 0.35) 60%,
      rgba(245, 243, 238, 0.12) 100%);
}

/* Inner layout */
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 60px var(--gap);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  width: 100%;
}

/* ── LEFT: Brand Logo (PNG image) ── */
.hero__brand {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.hero__logo-img {
  /* kenma-logo.png: the two circles + Kenma Design text, on white/transparent bg */
  width: min(480px, 100%);
  height: auto;
  display: block;
  /* Blend into the hero background naturally */
  mix-blend-mode: multiply;
  filter: brightness(0.97);
  position: relative;
  z-index: 1;
}

/* ── RIGHT: Copy + CTA ── */
.hero__copy {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 480px;
}

.hero__title {
  font-family: var(--f-serif);
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  font-weight: 500;
  line-height: 1.55;
  color: var(--c-green);
  letter-spacing: 0.04em;
}

.hero__title-sub {
  display: block;
  font-family: var(--f-sans);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--c-muted);
  margin-bottom: 12px;
  /* SEO: visible but visually subordinate */
}

.hero__lead {
  font-size: 0.96rem;
  color: var(--c-muted);
  line-height: 1.95;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--c-green) 0%, transparent 100%);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    opacity: 0;
    transform: scaleY(0);
    transform-origin: top;
  }

  40% {
    opacity: 1;
    transform: scaleY(1);
  }

  80% {
    opacity: 0;
  }

  100% {
    opacity: 0;
  }
}

.hero__scroll-text {
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-subtle);
}


/* ──────────────────────────────────────────────────────────────────
   CONCEPT BAND
   ────────────────────────────────────────────────────────────────── */
.concept {
  background: var(--c-green);
  padding: 56px 0 0;
  position: relative;
  overflow: hidden;
}

.concept__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
  text-align: center;
}

.concept__phrase {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding-bottom: 56px;
}

.concept__phrase-ja {
  font-family: var(--f-serif);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 400;
  color: var(--c-white);
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.concept__phrase-en {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.45);
  font-weight: 300;
  text-transform: uppercase;
}

/* Arc SVG divider */
.arc-divider {
  width: 100%;
  line-height: 0;
  margin-bottom: -1px;
}

.arc-divider svg {
  width: 100%;
  height: 48px;
  display: block;
}


/* ──────────────────────────────────────────────────────────────────
   PROBLEMS
   ────────────────────────────────────────────────────────────────── */
.pb {
  background: var(--c-cream);
  overflow: hidden;
}

.pb__list {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.pb__item {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 26px 0;
  border-bottom: 1px solid var(--c-border-lt);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-ink);
  transition: color 0.25s;
}

.pb__item:first-child {
  border-top: 1px solid var(--c-border-lt);
}

.pb__item:hover {
  color: var(--c-green);
}

.pb__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-orange);
  flex-shrink: 0;
  margin-top: 8px;
}


/* ──────────────────────────────────────────────────────────────────
   SERVICES
   ────────────────────────────────────────────────────────────────── */
.sv {
  background: var(--c-cream-d);
  overflow: hidden;
}

/* Rail: bridge cable abstraction (horizontal connecting line + circle nodes) */
.sv__rail {
  position: relative;
  height: 1px;
  margin-bottom: 56px;
  display: flex;
  align-items: center;
}

.sv__rail-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--c-border), var(--c-border), transparent);
}

.sv__rail-node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--c-green);
  background: var(--c-cream-d);
  top: 50%;
  transform: translateY(-50%);
}

.sv__rail-node--1 {
  left: calc(100% / 6);
}

.sv__rail-node--2 {
  left: calc(100% / 2);
}

.sv__rail-node--3 {
  left: calc(5 * 100% / 6);
}

/* 3-column layout */
.sv__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}

/* Vertical dividers between items */
.sv__item+.sv__item {
  border-left: 1px solid var(--c-border);
}

.sv__item {
  padding: 0 clamp(24px, 4vw, 48px);
  padding-bottom: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sv__item:first-child {
  padding-left: 0;
}

.sv__item:last-child {
  padding-right: 0;
}

.sv__item--accent {
  position: relative;
}

.sv__item--accent::before {
  content: "";
  position: absolute;
  top: -24px;
  left: clamp(24px, 4vw, 48px);
  right: clamp(24px, 4vw, 48px);
  height: 2px;
  background: var(--c-orange);
}

/* Number: Cormorant Garamond, large & light */
.sv__num {
  font-family: var(--f-serif);
  font-size: 4.5rem;
  font-weight: 300;
  line-height: 1;
  color: var(--c-green);
  opacity: 0.18;
  letter-spacing: -0.02em;
  display: block;
  margin-bottom: -12px;
}

.sv__name {
  font-family: var(--f-serif);
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--c-green);
  letter-spacing: 0.02em;
}

.sv__desc {
  font-size: 0.92rem;
  color: var(--c-muted);
  line-height: 1.9;
}


/* ──────────────────────────────────────────────────────────────────
   STORY
   ────────────────────────────────────────────────────────────────── */
.st {
  background: var(--c-cream);
}

.st__grid {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}

/* Visual column */
.st__visual {
  position: sticky;
  top: 112px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.st__photo-wrap {
  position: relative;
}

/* Decorative ring behind photo (circle motif) */
.st__photo-ring {
  position: absolute;
  width: 78%;
  height: 78%;
  border-radius: 50%;
  border: 1px solid rgba(30, 58, 43, 0.12);
  top: -12%;
  right: -10%;
  z-index: 0;
}

.st__photo {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.98) contrast(1.02);
  transition: filter 0.6s var(--ease);
}

.st__photo-wrap:hover .st__photo {
  filter: brightness(1.02) contrast(1.0);
}

.st__profile-tag {
  background: var(--c-green);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 3px solid var(--c-orange);
}

.st__profile-role {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.65);
  text-transform: uppercase;
}

.st__profile-name {
  font-family: var(--f-serif);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--c-white);
  letter-spacing: 0.04em;
}

/* Story content */
.st__heading {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 0;
}

.st__prose {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.st__prose p {
  font-size: 0.96rem;
  color: var(--c-muted);
  line-height: 1.95;
}

.st__accent-p {
  font-family: var(--f-serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--c-green) !important;
  padding-left: 20px;
  border-left: 2px solid var(--c-border);
  letter-spacing: 0.04em;
}

.st__pullquote {
  background: var(--c-cream-d);
  padding: 24px 28px;
  border-left: 2px solid var(--c-orange);
  font-family: var(--f-serif);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--c-green) !important;
  line-height: 1.75;
}

.st__quote {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 28px 28px 24px;
  background: var(--c-cream-d);
  border: 1px solid var(--c-border-lt);
  position: relative;
}

.st__quote-mark {
  font-family: var(--f-serif);
  font-size: 4.5rem;
  color: var(--c-orange);
  line-height: 0.6;
  opacity: 0.5;
  margin-bottom: 8px;
}

.st__quote p {
  font-family: var(--f-serif);
  font-size: 1.1rem !important;
  font-weight: 400;
  line-height: 1.75 !important;
  color: var(--c-green) !important;
}

.st__closing {
  font-weight: 500;
  color: var(--c-green) !important;
  padding-top: 12px;
}


/* ──────────────────────────────────────────────────────────────────
   REASONS / VOICES
   ────────────────────────────────────────────────────────────────── */
.rv {
  background: var(--c-cream-d);
}

.rv__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.rv__intro {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.rv__intro p {
  font-size: 0.96rem;
  color: var(--c-muted);
  line-height: 1.95;
}

.rv__core {
  font-family: var(--f-serif);
  font-size: 1.2rem !important;
  font-weight: 400;
  color: var(--c-green) !important;
  padding: 20px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  line-height: 1.7 !important;
}

.rv__voices {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.rv__voices-heading {
  font-family: var(--f-serif);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--c-green);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border);
}

.rv__voice-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.rv__voice {
  padding: 28px 24px;
  background: var(--c-white);
  position: relative;
  border-top: 2px solid var(--c-orange);
}

.rv__voice p {
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--c-ink);
  font-style: italic;
}

.rv__voice cite {
  display: block;
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--c-muted);
  letter-spacing: 0.1em;
  font-style: normal;
}


/* ──────────────────────────────────────────────────────────────────
   FAQ
   ────────────────────────────────────────────────────────────────── */
.fq {
  background: var(--c-cream);
  overflow: hidden;
}

.fq__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.fq__head {
  position: sticky;
  top: 112px;
}

.fq__list {
  display: flex;
  flex-direction: column;
}

.fq__item {
  border-bottom: 1px solid var(--c-border-lt);
  transition: background 0.25s;
}

.fq__item:first-child {
  border-top: 1px solid var(--c-border-lt);
}

.fq__item[open] {
  background: rgba(30, 58, 43, 0.025);
}

.fq__q {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 24px 0;
  cursor: pointer;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--c-ink);
  user-select: none;
  transition: color 0.25s;
}

.fq__q:hover {
  color: var(--c-green);
}

.fq__q span:nth-child(2) {
  flex: 1;
  line-height: 1.6;
  padding-top: 2px;
}

.fq__q-letter {
  font-family: var(--f-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--c-orange);
  line-height: 1;
  flex-shrink: 0;
}

/* Plus/minus icon */
.fq__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  position: relative;
  margin-top: 3px;
}

.fq__icon::before,
.fq__icon::after {
  content: '';
  position: absolute;
  background: var(--c-green);
  transition: transform 0.35s var(--ease), opacity 0.35s;
}

.fq__icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.fq__icon::after {
  top: 0;
  left: 50%;
  height: 100%;
  width: 1px;
  transform: translateX(-50%);
}

details[open] .fq__icon::after {
  opacity: 0;
  transform: translateX(-50%) rotate(90deg);
}

.fq__a {
  display: flex;
  gap: 14px;
  padding: 0 0 28px 0;
}

.fq__a-letter {
  font-family: var(--f-serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--c-green);
  line-height: 1;
  flex-shrink: 0;
  padding-top: 2px;
}

.fq__a p {
  font-size: 0.93rem;
  color: var(--c-muted);
  line-height: 1.9;
}


/* ──────────────────────────────────────────────────────────────────
   CONTACT / CTA
   ────────────────────────────────────────────────────────────────── */
.ct {
  background: var(--c-cream-d);
  overflow: hidden;
  position: relative;
}

/* Large circle motif behind content */
.ct__bg-circle {
  position: absolute;
  width: clamp(400px, 55vw, 700px);
  height: clamp(400px, 55vw, 700px);
  border-radius: 50%;
  border: 1px solid rgba(30, 58, 43, 0.07);
  top: 50%;
  right: -15%;
  transform: translateY(-50%);
  pointer-events: none;
}

/* Second inner circle */
.ct__bg-circle::after {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid rgba(30, 58, 43, 0.05);
}

.ct__inner {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
  position: relative;
  z-index: 1;
}

.ct__text {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.ct__heading {
  font-family: var(--f-serif);
  font-size: clamp(1.8rem, 3.0vw, 2.8rem);
  font-weight: 400;
  color: var(--c-green);
  line-height: 1.4;
  letter-spacing: 0.03em;
}

.ct__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ct__body p {
  font-size: 0.96rem;
  color: var(--c-muted);
  line-height: 1.9;
}

.ct__promise {
  font-weight: 500;
  color: var(--c-ink) !important;
}

.ct__cta-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ct__note {
  font-size: 0.78rem;
  color: var(--c-subtle);
}

/* Photo: framed with partial circle */
.ct__visual {
  position: relative;
}

.ct__photo-ring {
  position: absolute;
  width: 110%;
  height: 110%;
  border-radius: 50%;
  border: 1px solid rgba(30, 58, 43, 0.1);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

.ct__visual img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.96) contrast(1.02) saturate(0.85);
}


/* ──────────────────────────────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────────────────────────────── */
.footer {
  background: #6f9594;
  position: relative;
  overflow: hidden;
}

.footer__arc {
  width: 100%;
  line-height: 0;
  margin-bottom: -2px;
}

.footer__arc svg {
  width: 100%;
  height: 60px;
  display: block;
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 60px var(--gap) 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__logo-img {
  /* footer-logo.png: dark circle + outline circle version, optimized for dark bg */
  height: 56px;
  width: auto;
  display: block;
  opacity: 0.9;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  justify-content: center;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
}

.footer__nav a {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.25s;
}

.footer__nav a:hover {
  color: var(--c-white);
}

.footer__copy {
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.28);
  letter-spacing: 0.05em;
}


/* ──────────────────────────────────────────────────────────────────
   RESPONSIVE
   ────────────────────────────────────────────────────────────────── */
@media (max-width: 1080px) {

  /* Story: stack vertically */
  .st__grid {
    grid-template-columns: 1fr;
  }

  .st__visual {
    position: static;
    max-width: 440px;
  }

  /* Reasons: stack vertically */
  .rv__body {
    grid-template-columns: 1fr;
  }

  /* Contact: stack vertically */
  .ct__inner {
    grid-template-columns: 1fr;
  }

  .ct__visual {
    max-width: 440px;
  }
}

@media (max-width: 880px) {

  /* Hero: stack vertically */
  .hero__inner {
    grid-template-columns: 1fr;
    min-height: 90vh;
  }

  .hero__brand {
    justify-content: center;
    margin-bottom: 0;
  }

  .hero__logo-img {
    width: min(360px, 80vw);
    margin: 0 auto;
  }

  .hero__copy {
    max-width: 100%;
    align-items: flex-start;
  }

  /* Services: stack vertically */
  .sv__grid {
    grid-template-columns: 1fr;
  }

  .sv__item {
    border-left: none !important;
    border-top: 1px solid var(--c-border);
    padding: 40px 0;
  }

  .sv__item:first-child {
    border-top: none;
  }

  .sv__item--accent::before {
    display: none;
  }

  /* FAQ: stack */
  .fq__grid {
    grid-template-columns: 1fr;
  }

  .fq__head {
    position: static;
  }
}

@media (max-width: 640px) {
  .section {
    padding: clamp(64px, 10vw, 100px) 0;
  }

  .sec-head {
    margin-bottom: 40px;
  }

  .hero__logo-kenma,
  .hero__logo-design {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .btn-filled {
    width: 100%;
    justify-content: center;
  }

  .hdr__nav {
    display: none;
  }

  .hdr__burger {
    display: flex;
  }

  .sv__rail {
    display: none;
  }

  .sv__grid {
    margin-top: 0;
  }
}