/* ==========================================================================
   MER株式会社 — ONE CORE visual system
   ========================================================================== */

:root {
  --mer-base: #f7f8f6;
  --mer-paper: rgba(255, 255, 255, 0.72);
  --mer-ink: #20242c;
  --mer-ink-soft: #4e5664;
  --mer-blue: #416fcc;
  --mer-blue-dark: #183d8e;
  --mer-amber: #986200;
  --mer-coral: #9a3042;
  --mer-line: rgba(32, 36, 44, 0.16);
  --mer-display: "Zen Kaku Gothic New", system-ui, sans-serif;
  --mer-latin: "Inter Tight", "Zen Kaku Gothic New", system-ui, sans-serif;
  --mer-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --pad: clamp(22px, 5vw, 84px);
  --ink: #20242c;
  --ink-dim: rgba(32, 36, 44, 0.68);
  --ink-faint: rgba(32, 36, 44, 0.36);
  --line: rgba(32, 36, 44, 0.16);
  --bg: #f7f8f6;
  --bg-2: #eef3fa;
  --accent: #416fcc;
  --font-display: var(--mer-display);
  --font-ui: var(--mer-display);
}

html {
  color: var(--mer-ink);
  background: var(--mer-base);
  scroll-behavior: smooth;
  scrollbar-color: rgba(32, 36, 44, 0.32) transparent;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--mer-ink);
  background: transparent;
  font-family: var(--mer-display);
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0.015em;
  line-break: strict;
  word-break: normal;
  overflow-wrap: normal;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.028;
  background-image:
    repeating-linear-gradient(0deg, rgba(25, 33, 52, 0.11) 0, rgba(25, 33, 52, 0.11) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.18) 0, rgba(255, 255, 255, 0.18) 1px, transparent 1px, transparent 4px);
  mix-blend-mode: soft-light;
}

::selection {
  color: #fff;
  background: var(--mer-blue-dark);
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--mer-blue);
  outline-offset: 5px;
}

.mer-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 10001;
  padding: 10px 16px;
  color: #fff;
  background: var(--mer-blue-dark);
  border-radius: 999px;
  transform: translateY(-160%);
  transition: transform 0.25s ease;
}

.mer-skip:focus { transform: translateY(0); }

/* ---------- moving environment ---------- */
.mer-aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: var(--mer-base);
}

.mer-aurora__orb {
  position: absolute;
  width: max(50vw, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(clamp(70px, 9vw, 150px));
  opacity: 0.31;
  will-change: transform;
}

.mer-aurora__orb--blue {
  top: -26%;
  left: -17%;
  background: #a8ccef;
  animation: mer-drift-blue 34s var(--mer-ease) infinite alternate;
}

.mer-aurora__orb--yellow {
  top: 18%;
  right: -26%;
  background: #f2dda0;
  animation: mer-drift-yellow 38s var(--mer-ease) infinite alternate;
}

.mer-aurora__orb--red {
  bottom: -28%;
  left: 25%;
  background: #ebb0ad;
  animation: mer-drift-red 42s var(--mer-ease) infinite alternate;
}

.mer-aurora__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 64% 52% at 50% 44%, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.36) 62%, transparent 88%),
    linear-gradient(180deg, rgba(247, 248, 246, 0.18), rgba(247, 248, 246, 0.48));
}

@keyframes mer-drift-blue {
  from { transform: translate3d(-2vw, -3vh, 0) scale(1); }
  to { transform: translate3d(24vw, 18vh, 0) scale(1.16); }
}

@keyframes mer-drift-yellow {
  from { transform: translate3d(5vw, -4vh, 0) scale(1.04); }
  to { transform: translate3d(-23vw, 24vh, 0) scale(0.92); }
}

@keyframes mer-drift-red {
  from { transform: translate3d(-7vw, 8vh, 0) scale(0.96); }
  to { transform: translate3d(19vw, -26vh, 0) scale(1.12); }
}

/* ==========================================================================
   夜のヒーロー → 朝が明ける
   白地に濃紺の立体を置くと、環境光を拾うほど灰色に抜けて必ず安っぽくなる。
   冒頭だけ地を落として立体を光らせ、スクロールで明るい読み物へ渡す。
   物語（ゼロからの再起）とも一致する。
   `data-hero="dark"` は scenes/motif.js が進行度を見て切り替える。
   ========================================================================== */
:root {
  --hero-shift: 1.05s var(--mer-ease);
}

.mer-nightfall {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  /* 冒頭の地は、生成グラデーションではなく「一人の男の逆転譚」の1枚絵。
     左（コピー）と右上（立体ロゴ）が乗るので、そこだけベールで沈める。 */
  background:
    linear-gradient(96deg,
      rgba(5, 9, 18, 0.95) 0%,
      rgba(5, 9, 18, 0.86) 26%,
      rgba(5, 9, 18, 0.42) 52%,
      rgba(5, 9, 18, 0.30) 74%,
      rgba(5, 9, 18, 0.62) 100%),
    linear-gradient(184deg, rgba(5, 9, 18, 0.72) 0%, rgba(5, 9, 18, 0) 34%,
      rgba(5, 9, 18, 0) 68%, rgba(5, 9, 18, 0.78) 100%),
    url("../img/fv-saga.webp") 58% 42% / cover no-repeat,
    #070c18;
  transition: opacity var(--hero-shift);
}

@media (max-width: 980px) {
  /* 縦画面は絵の大半が切れる。見せ場（覚醒から先）へ寄せる。 */
  .mer-nightfall {
    background:
      linear-gradient(178deg,
        rgba(5, 9, 18, 0.92) 0%,
        rgba(5, 9, 18, 0.74) 30%,
        rgba(5, 9, 18, 0.34) 58%,
        rgba(5, 9, 18, 0.86) 100%),
      url("../img/fv-saga-sp.webp") 74% 46% / cover no-repeat,
      #070c18;
  }
}

:root[data-hero="dark"] .mer-nightfall { opacity: 1; }

/* 地が沈むあいだ、淡いオーロラは邪魔なので引く。 */
:root[data-hero="dark"] .mer-aurora__veil { opacity: 0.10; transition: opacity var(--hero-shift); }
.mer-aurora__veil { transition: opacity var(--hero-shift); }
:root[data-hero="dark"] .mer-aurora__orb { opacity: 0.16; }
.mer-aurora__orb { transition: opacity var(--hero-shift); }

/* 夜のあいだの文字色。読めなくなるものを1つずつ起こす。 */
:root[data-hero="dark"] .mer-kicker { color: rgba(196, 214, 248, 0.82); }
:root[data-hero="dark"] .mer-hero-note { color: rgba(219, 229, 248, 0.86); }
:root[data-hero="dark"] .bs-hint { color: rgba(206, 219, 244, 0.52); }
:root[data-hero="dark"] .bs-hint__line { background: rgba(206, 219, 244, 0.42); }

:root[data-hero="dark"] .mer-display--hero {
  background: linear-gradient(104deg, #cfe0ff 0%, #ffffff 26%, #ffd79a 58%, #ffb3ba 84%, #cfe0ff 118%);
  background-size: 230% 100%;
  /* background の一括指定は background-clip を初期値へ戻す。
     ここで敷き直さないと、見出しが「塗り潰した長方形」になる。 */
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 2px 26px rgba(6, 12, 26, 0.55));
}

:root[data-hero="dark"] .mer-header {
  color: #f2f6ff;
  background: linear-gradient(180deg, rgba(8, 13, 26, 0.72), rgba(8, 13, 26, 0));
  border-bottom-color: transparent;
  backdrop-filter: none;
}

:root[data-hero="dark"] .mer-wordmark { color: #f4f7ff; }
:root[data-hero="dark"] .mer-nav a { color: rgba(214, 226, 250, 0.86); }
:root[data-hero="dark"] .mer-nav a:hover { color: #fff; }

:root[data-hero="dark"] .mer-nav-cta {
  color: #0a1020;
  background: #f4f7ff;
  border-color: transparent;
}

:root[data-hero="dark"] .bs-cursor {
  border-color: rgba(226, 236, 255, 0.78) !important;
  box-shadow: 0 0 0 1px rgba(10, 16, 32, 0.45) inset;
}

.mer-header,
.mer-wordmark,
.mer-nav a,
.mer-nav-cta,
.mer-kicker,
.mer-hero-note {
  transition: color var(--hero-shift), background-color var(--hero-shift),
    border-color var(--hero-shift), background var(--hero-shift);
}

/* 3Dが動かないときは夜にしない（静的マークは明るい地の前提で作ってある）。 */
:root:not(.has-3d) .mer-nightfall { opacity: 0 !important; }

/* 見出しの下敷き（白い靄）は明るい地のためのもの。夜に出すと白い雲になる。 */
.mer-beat__inner::before { transition: opacity var(--hero-shift), background var(--hero-shift); }
:root[data-hero="dark"] .mer-beat--hero .mer-beat__inner::before {
  background: radial-gradient(ellipse at center, rgba(10, 18, 38, 0.55) 0, rgba(10, 18, 38, 0.28) 52%, transparent 78%);
}

/* ---------- stacking ---------- */
.bs-canvas--page {
  z-index: 1 !important;
  /* Canvas全体を薄めない。透かしの濃さは素材側（scenes/motif.js の inkPresence）が持つ。
     ここで一律に落とすと、主役であるべきヒーローまで弱くなる。 */
  opacity: 1;
  pointer-events: none;
}

.mer-script,
.mer-footer,
.mer-header,
.mer-static-stage,
.bs-hint {
  position: relative;
  z-index: 2;
}

.bs-stage,
[data-progress] .bs-stage {
  height: 0 !important;
  min-height: 0 !important;
}

.bs-stage__sticky,
[data-progress] .bs-stage__sticky {
  position: static !important;
  height: 0 !important;
  overflow: visible !important;
}

.bs-canvas canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ---------- CSS ONE CORE / fallback ---------- */
.mer-mark {
  position: relative;
  width: 168px;
  aspect-ratio: 1;
  isolation: isolate;
  filter: drop-shadow(0 22px 30px rgba(35, 50, 83, 0.18));
}

.mer-mark__ribbon {
  --r: 0deg;
  position: absolute;
  top: 41%;
  left: 38%;
  width: 58%;
  height: 19%;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 22% 52% 34% 22%;
  clip-path: polygon(0 24%, 48% 0, 100% 38%, 76% 100%, 40% 71%, 0 82%);
  transform-origin: 18% 50%;
  transform: rotate(var(--r)) translateX(8%) scale(1);
  box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.72), 0 8px 18px rgba(52, 63, 95, 0.12);
}

.mer-mark__ribbon--blue {
  --r: 7deg;
  top: 26%;
  left: 20%;
  background: linear-gradient(135deg, #83a1e4, #416fcc 72%);
}

.mer-mark__ribbon--amber {
  --r: 96deg;
  top: 35%;
  left: 12%;
  width: 54%;
  background: linear-gradient(135deg, #e1bf68, #ad7618 72%);
}

.mer-mark__ribbon--coral {
  --r: -15deg;
  top: 67%;
  left: 22%;
  width: 61%;
  background: linear-gradient(135deg, #dd9398, #a94759 72%);
}

.mer-mark__core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  width: 23%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, #fff 0 14%, #eff4ff 32%, #b8cdfd 70%, #6b82bb 100%);
  box-shadow: 0 0 0 12px rgba(201, 216, 252, 0.18), 0 0 34px rgba(89, 122, 199, 0.42);
  transform: translate(-50%, -50%);
}

.mer-static-stage {
  position: fixed;
  top: 28vh;
  right: clamp(24px, 9vw, 150px);
  z-index: 1;
  opacity: 0.72;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

/* ---------- ローダー：社名が組み上がる ---------- */
.mer-wordbuild {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.02em;
  width: auto !important;
  height: auto !important;
  aspect-ratio: auto !important;
  overflow: visible;
  color: #16294f;
  font-family: var(--mer-latin);
  font-size: clamp(52px, 9vw, 108px);
  font-weight: 800;
  letter-spacing: 0.012em;
  line-height: 1;
  filter: none;
}

.mer-wordbuild__letter {
  position: static !important;
  width: auto !important;
  height: auto !important;
  border: 0 !important;
  border-radius: 0 !important;
  clip-path: none !important;
  background: none !important;
  box-shadow: none !important;
  opacity: 0.10;
  transform: translateY(0.14em) scale(0.94);
  transition: opacity 0.7s var(--mer-ease), transform 0.8s var(--mer-ease);
}

.mer-wordbuild__letter.is-set {
  opacity: 1;
  transform: none;
}

.mer-wordbuild__dot {
  margin-left: 0.05em;
  color: #efa518;
  opacity: 0;
  transform: scale(0.4);
  transition: opacity 0.5s ease, transform 0.6s var(--mer-ease);
}

.bs-loader.is-ready .mer-wordbuild__dot {
  opacity: 1;
  transform: none;
}

/* 進捗ラベルと数字が地続きになって「…THOUGHT00」と読めてしまうのを防ぐ。 */
.bs-loader__row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

/* 3Dが動かないときの主役。3Dと同じ姿（社名＋独立した一粒）で受け止める。 */
.mer-static-mark {
  margin: 0;
  color: #16294f;
  font-family: var(--mer-latin);
  font-size: clamp(56px, 11vw, 152px);
  font-weight: 800;
  letter-spacing: 0.012em;
  line-height: 1;
  text-shadow: 0 18px 40px rgba(35, 50, 83, 0.16);
}

.mer-static-mark__dot {
  margin-left: 0.04em;
  color: #efa518;
}

.mer-mark--static { width: clamp(180px, 25vw, 360px); }
.has-3d .mer-static-stage { opacity: 0; }

/* ---------- splash ---------- */
.has-js .bs-loader[data-splash="true"],
.has-js .bs-loader {
  z-index: 10000;
  color: var(--mer-ink);
  background:
    radial-gradient(circle at 50% 40%, rgba(255, 255, 255, 0.94), rgba(247, 248, 246, 0.86) 52%, rgba(230, 237, 247, 0.90)),
    var(--mer-base);
}

.bs-loader__inner { gap: clamp(12px, 2.2vh, 28px) !important; }

.mer-mark--loader {
  width: clamp(124px, 17vw, 190px);
  height: auto;
  overflow: visible;
}

.mer-mark--loader .mer-mark__ribbon {
  opacity: 0.07;
  transform: rotate(var(--r)) translateX(8%) scale(0.55);
  transition: opacity 0.8s var(--mer-ease), transform 0.9s var(--mer-ease), filter 0.9s var(--mer-ease);
}

.mer-mark--loader .mer-mark__ribbon.is-set {
  opacity: 1;
  transform: rotate(var(--r)) translateX(8%) scale(1);
}

.mer-mark--loader .mer-mark__core {
  animation: mer-core-breathe 2.4s ease-in-out infinite;
}

@keyframes mer-core-breathe {
  0%, 100% { transform: translate(-50%, -50%) scale(0.95); box-shadow: 0 0 0 8px rgba(201, 216, 252, 0.12), 0 0 22px rgba(89, 122, 199, 0.28); }
  50% { transform: translate(-50%, -50%) scale(1.05); box-shadow: 0 0 0 15px rgba(201, 216, 252, 0.20), 0 0 38px rgba(89, 122, 199, 0.44); }
}

.bs-loader__mark {
  margin: 0 !important;
  color: #1e315e !important;
  font-family: var(--mer-latin) !important;
  font-size: clamp(2.1rem, 4vw, 3.8rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.07em !important;
  line-height: 1 !important;
}

.bs-loader__mark span { color: var(--mer-coral); }

.mer-loader__thought {
  margin: 0;
  color: rgba(32, 36, 44, 0.58);
  font-family: var(--mer-latin);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
}

.bs-loader__foot { color: rgba(32, 36, 44, 0.62) !important; }
.bs-loader__bar { background: rgba(32, 36, 44, 0.12) !important; }
.bs-loader__bar-fill { background: linear-gradient(90deg, var(--mer-blue), #c28c25, var(--mer-coral)) !important; }
.bs-odo { color: #233861 !important; font-family: var(--mer-latin) !important; }

/* ---------- header ---------- */
.mer-header.bs-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 90;
  min-height: 76px;
  padding: 16px var(--pad);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(18px, 3vw, 52px);
  color: var(--mer-ink);
  background: linear-gradient(180deg, rgba(247, 248, 246, 0.80), rgba(247, 248, 246, 0));
  border: 0;
  transition: background 0.5s ease, box-shadow 0.5s ease, transform 0.5s var(--mer-ease);
}

.mer-header.bs-header.is-scrolled {
  background: rgba(249, 250, 249, 0.79);
  box-shadow: 0 1px 0 rgba(32, 36, 44, 0.08);
  backdrop-filter: blur(18px) saturate(1.2);
}

.mer-wordmark {
  color: #1e315e;
  font-family: var(--mer-latin);
  font-size: clamp(1.55rem, 2.2vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.075em;
  line-height: 1;
}

.mer-wordmark span { color: var(--mer-coral); }

.mer-nav {
  justify-self: center;
  display: flex;
  gap: clamp(18px, 2.4vw, 38px);
  align-items: center;
}

.mer-nav a {
  position: relative;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.mer-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--mer-blue);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--mer-ease);
}

.mer-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.mer-nav-cta {
  padding: 10px 18px;
  border: 1px solid rgba(32, 36, 44, 0.24);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: rgba(255, 255, 255, 0.48);
  transition: color 0.35s ease, background 0.35s ease, border-color 0.35s ease, transform 0.35s var(--mer-ease);
}

.mer-nav-cta:hover {
  color: #fff;
  background: #243d76;
  border-color: #243d76;
  transform: translateY(-2px);
}

/* ---------- cinematic beats ---------- */
.mer-script { overflow-x: clip; }

.mer-beat.bs-beat {
  min-height: 88svh;
  padding: clamp(110px, 15vh, 170px) var(--pad) clamp(80px, 12vh, 150px);
  display: grid;
  align-content: center;
  color: var(--mer-ink);
}

.mer-beat--short.bs-beat { min-height: 62svh; }
.mer-beat--compact.bs-beat { min-height: 78svh; }
.mer-beat--hero.bs-beat {
  min-height: 100svh;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  column-gap: clamp(60px, 7vw, 120px);
  align-content: center;
  align-items: center;
  padding-top: clamp(120px, 14vh, 170px);
  padding-bottom: clamp(80px, 10vh, 120px);
}
.mer-beat--statement.bs-beat { min-height: 100svh; }
.mer-beat--promise.bs-beat { min-height: 108svh; }

.mer-beat--left { justify-items: start; text-align: left; }
.mer-beat--right { justify-items: end; text-align: right; }
.mer-beat--center { justify-items: center; text-align: center; }

.mer-beat__inner {
  position: relative;
  width: min(840px, 60vw);
  max-width: none !important;
  isolation: isolate;
}

/* motif.cssの汎用52ch制限を、MERの複合レイアウトには適用しない。 */
.mer-beat > .mer-container,
.mer-beat > .mer-lead-film { max-width: none !important; }

.mer-beat--hero .mer-beat__inner {
  width: auto;
  max-width: 760px !important;
}

.mer-beat__inner::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -13% -10%;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.90) 0, rgba(255, 255, 255, 0.68) 46%, transparent 76%);
  filter: blur(18px);
  pointer-events: none;
}

.mer-beat--right .mer-beat__inner { margin-left: auto; }
.mer-beat--center .mer-beat__inner { width: min(1020px, 84vw); margin-inline: auto; }

.mer-kicker {
  margin: 0 0 clamp(18px, 3vh, 34px);
  color: #3f527a;
  font-family: var(--mer-latin);
  font-size: clamp(0.67rem, 0.78vw, 0.78rem);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.mer-display,
.mer-heading {
  margin: 0;
  color: #1e376f;
  font-family: var(--mer-display);
  font-weight: 900;
  font-feature-settings: "palt" 1;
  letter-spacing: -0.055em;
  line-height: 1.13;
  text-wrap: balance;
  word-break: normal;
  line-break: strict;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.70));
}

.mer-display {
  font-size: clamp(2.35rem, 4.4vw, 5rem);
}

.mer-display--hero {
  font-size: clamp(4rem, 5vw, 5.8rem);
  line-height: 1.01;
}

.mer-display--medium {
  font-size: clamp(2.45rem, 4.65vw, 5.35rem);
  line-height: 1.11;
}

.mer-display--xl { font-size: clamp(3.2rem, 4.1vw, 4.75rem); }

.mer-display--hero,
.mer-display--xl,
.mer-heading--large,
.mer-heading--cta {
  background: linear-gradient(106deg, var(--mer-blue-dark) 0%, #315cae 28%, #b27b19 58%, #b74656 86%, var(--mer-blue-dark) 120%);
  background-size: 230% 100%;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: mer-heading-flow 18s ease-in-out infinite alternate;
}

.mer-line { display: block; }
.mer-phrase { display: inline-block; }
.mer-display--hero .mer-line,
.mer-display--xl .mer-line { white-space: nowrap; }

@supports (word-break: auto-phrase) {
  .mer-display,
  .mer-heading,
  .mer-hero-note,
  .mer-promise-note,
  .mer-prose p,
  .mer-intro,
  .mer-cta__copy { word-break: auto-phrase; }
}

@keyframes mer-heading-flow {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}

.mer-hero-note,
.mer-promise-note {
  max-width: 40em;
  margin: clamp(24px, 4vh, 46px) 0 0;
  color: var(--mer-ink-soft);
  font-size: clamp(0.98rem, 1.18vw, 1.18rem);
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0.04em;
  text-wrap: pretty;
}

.mer-lead-film {
  width: 100%;
  max-width: none !important;
  margin: 0;
  justify-self: stretch;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: clamp(24px, 3vw, 38px);
  background: #090b10;
  box-shadow: 0 36px 110px rgba(25, 39, 78, 0.22);
}

.mer-lead-film video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #090b10;
}

.mer-lead-film figcaption {
  padding: clamp(18px, 2.4vw, 30px) clamp(20px, 3vw, 38px);
  display: flex;
  justify-content: space-between;
  gap: 20px 40px;
  align-items: baseline;
  color: rgba(255, 255, 255, 0.90);
  background: linear-gradient(105deg, #152445, #233763 62%, #543445 130%);
}

.mer-lead-film figcaption span {
  color: rgba(215, 225, 250, 0.68);
  font-family: var(--mer-latin);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.mer-lead-film figcaption strong {
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.6;
  letter-spacing: 0.02em;
  text-wrap: pretty;
}

/* リード映像は独立した1章にする。ヒーローの右半分は3Dロゴの席。 */
.mer-film {
  position: relative;
  z-index: 3;
  padding-block: clamp(86px, 11vh, 130px);
}

.mer-film__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  column-gap: clamp(40px, 5vw, 80px);
  align-items: center;
}

.mer-film__head { max-width: 30ch; }
.mer-film .mer-lead-film { max-width: 820px; }

@media (max-width: 980px) {
  .mer-film__inner { grid-template-columns: 1fr; row-gap: 30px; }
  .mer-film__head { max-width: none; }
}

.mer-philosophy.bs-beat {
  min-height: auto;
  padding-block: clamp(120px, 16vh, 180px);
}

.mer-philosophy__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  grid-template-areas:
    "head head"
    "copy visual"
    "principles principles";
  gap: clamp(54px, 7vw, 108px);
  align-items: center;
  text-align: left;
  max-width: none !important;
}

.mer-philosophy__head {
  grid-area: head;
  max-width: 1080px;
}

.mer-philosophy__copy {
  grid-area: copy;
  max-width: 580px;
  align-self: start;
}

.mer-philosophy .mer-editorial-visual {
  grid-area: visual;
  width: 100%;
}

.mer-lead-statement {
  margin: clamp(30px, 5vh, 52px) 0 0;
  color: #24365f;
  font-size: clamp(1.38rem, 2.25vw, 2.2rem);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.mer-editorial-visual,
.mer-story-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: clamp(24px, 3vw, 38px);
  box-shadow: 0 32px 90px rgba(43, 61, 103, 0.14);
}

.mer-editorial-visual img,
.mer-story-visual img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.mer-editorial-visual img { aspect-ratio: 3 / 2; }

.mer-editorial-visual figcaption,
.mer-story-visual figcaption {
  padding: 16px 22px;
  color: rgba(35, 54, 96, 0.60);
  background: rgba(255, 255, 255, 0.78);
  font-family: var(--mer-latin);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.mer-principles {
  grid-area: principles;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(35, 54, 96, 0.16);
  border-bottom: 1px solid rgba(35, 54, 96, 0.16);
}

.mer-principles article {
  min-width: 0;
  padding: clamp(30px, 4vw, 50px) clamp(18px, 3vw, 38px);
}

.mer-principles article + article { border-left: 1px solid rgba(35, 54, 96, 0.16); }
.mer-principles p { margin: 0 0 18px; color: #60739d; font-family: var(--mer-latin); font-size: 0.65rem; font-weight: 800; letter-spacing: 0.16em; }
.mer-principles h3 { margin: 0 0 14px; color: #203666; font-size: clamp(1.45rem, 2.1vw, 2.1rem); line-height: 1.25; letter-spacing: -0.04em; }
.mer-principles span { display: block; color: var(--mer-ink-soft); font-size: 0.9rem; line-height: 1.85; text-wrap: pretty; }

.mer-beat--center .mer-promise-note { margin-inline: auto; }

.mer-beat__path {
  width: min(100%, 560px);
  margin: clamp(30px, 5vh, 54px) 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(10px, 1.4vw, 20px);
  color: #263b6e;
  font-family: var(--mer-latin);
  font-size: clamp(0.74rem, 0.9vw, 0.92rem);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.mer-beat__path span {
  padding: 10px 15px;
  border: 1px solid rgba(43, 70, 132, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.48);
  backdrop-filter: blur(12px);
  white-space: nowrap;
}

.mer-beat__path i {
  width: clamp(18px, 3vw, 48px);
  height: 1px;
  background: linear-gradient(90deg, rgba(65, 111, 204, 0.28), rgba(154, 48, 66, 0.72));
}

/* ---------- editorial sections ---------- */
.mer-reading.bs-light,
.has-3d .mer-reading.bs-light {
  position: relative;
  z-index: 2;
  color: var(--mer-ink);
  background: transparent;
}

.mer-section {
  position: relative;
  z-index: 2;
  min-height: auto;
  padding: clamp(110px, 15vh, 180px) 0;
  background: transparent !important;
}

.mer-section::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 5% 2%;
  border-radius: clamp(34px, 7vw, 90px);
  background: radial-gradient(ellipse at 50% 50%, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.24) 58%, transparent 84%);
  pointer-events: none;
}

.mer-container {
  width: min(1280px, calc(100% - var(--pad) - var(--pad)));
  margin-inline: auto;
}

.mer-grid {
  display: grid;
  gap: clamp(54px, 9vw, 150px);
  align-items: start;
}

.mer-grid--story { grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr); }

.mer-section-head { max-width: 760px; }
.mer-section-head--wide { max-width: 980px; }

.mer-heading {
  font-size: clamp(2.15rem, 3.8vw, 4rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.045em;
}

.mer-heading--large { font-size: clamp(3.05rem, 6.35vw, 7rem); line-height: 1.07; }
.mer-heading--small {
  font-size: clamp(1.45rem, 2.2vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.mer-prose {
  max-width: 39em;
  padding: clamp(24px, 3.4vw, 46px);
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 30px;
  color: #353b46;
  background: rgba(255, 255, 255, 0.50);
  box-shadow: 0 22px 70px rgba(65, 86, 125, 0.08);
  backdrop-filter: blur(18px) saturate(1.12);
}

.mer-prose p {
  margin: 0;
  font-size: clamp(0.99rem, 1.08vw, 1.12rem);
  line-height: 2.0;
  text-wrap: pretty;
}

.mer-prose p + p { margin-top: 1.45em; }
.mer-prose strong { color: #1d315f; font-weight: 800; }

/* story — a deliberate night chapter */
.mer-story { min-height: 100svh; }

.mer-story::before {
  inset: 0;
  border-radius: 0;
  background:
    radial-gradient(circle at 12% 22%, rgba(66, 111, 204, 0.30), transparent 34%),
    radial-gradient(circle at 88% 74%, rgba(183, 70, 86, 0.22), transparent 38%),
    radial-gradient(circle at 62% 8%, rgba(220, 168, 51, 0.12), transparent 28%),
    linear-gradient(145deg, #10162d 0%, #17264d 55%, #1c2440 100%);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.06), inset 0 -1px rgba(255, 255, 255, 0.05);
}

.mer-story .mer-kicker { color: rgba(202, 217, 255, 0.78); }
.mer-story .mer-heading {
  color: #f7f9ff;
  background: none;
  -webkit-text-fill-color: currentColor;
  animation: none;
  filter: none;
}

.mer-story__lead {
  max-width: 34em;
  margin: clamp(30px, 4.5vh, 48px) 0 0;
  color: rgba(235, 241, 255, 0.82);
  font-size: clamp(1rem, 1.15vw, 1.15rem);
  font-weight: 600;
  line-height: 1.95;
  text-wrap: pretty;
}

.mer-story .mer-prose {
  color: rgba(248, 250, 255, 0.88);
  background: rgba(255, 255, 255, 0.075);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 28px 90px rgba(4, 9, 24, 0.25);
  backdrop-filter: blur(20px) saturate(1.1);
}

.mer-story-visual {
  grid-column: 1 / -1;
  margin-top: clamp(12px, 2vh, 28px);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 34px 110px rgba(4, 9, 24, 0.32);
}

.mer-story-visual img { aspect-ratio: 16 / 8.7; }
.mer-story-visual figcaption { color: rgba(222, 232, 255, 0.66); background: rgba(8, 14, 31, 0.72); }

/* proof */
.mer-proof-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) repeat(2, minmax(0, 0.82fr));
  grid-template-rows: repeat(2, minmax(220px, auto));
  gap: clamp(12px, 1.5vw, 20px);
  margin-top: clamp(70px, 11vh, 130px);
}

.mer-proof-card {
  min-height: 220px;
  padding: clamp(30px, 3.3vw, 52px) clamp(20px, 2.5vw, 38px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: clamp(24px, 2.5vw, 34px);
  background: rgba(255, 255, 255, 0.48);
  box-shadow: 0 24px 72px rgba(48, 65, 105, 0.07);
  backdrop-filter: blur(16px) saturate(1.08);
}

.mer-proof-card--lead {
  grid-row: 1 / span 2;
  min-height: 460px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 14%, rgba(118, 158, 246, 0.42), transparent 32%),
    linear-gradient(145deg, #173879 0%, #23345f 55%, #593a55 125%);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 34px 90px rgba(30, 53, 107, 0.21);
}

.mer-proof-card:nth-child(2) { background: rgba(226, 236, 255, 0.64); }
.mer-proof-card:nth-child(3) { background: rgba(252, 239, 195, 0.60); }
.mer-proof-card:nth-child(4) {
  grid-column: 2 / -1;
  background: rgba(250, 222, 224, 0.56);
}

.mer-proof-card__label {
  margin: 0 auto auto 0;
  color: rgba(35, 58, 109, 0.64);
  font-family: var(--mer-latin);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.mer-proof-card--lead .mer-proof-card__label { color: rgba(255, 255, 255, 0.62); }

.mer-proof-card__value {
  margin: 24px 0 22px;
  color: #1e376f;
  font-family: var(--mer-latin);
  font-feature-settings: "tnum" 1;
  line-height: 1;
  letter-spacing: -0.035em;
}

.mer-proof-card__value strong {
  font-size: clamp(2.55rem, 3.8vw, 4.7rem);
  font-weight: 700;
}

.mer-proof-card__value span {
  display: inline-block;
  margin: 0 0 0 0.7em;
  color: var(--mer-coral);
  font-size: clamp(0.66rem, 0.92vw, 0.86rem);
  font-weight: 700;
  letter-spacing: 0.10em;
  vertical-align: 0.28em;
}

.mer-proof-card--lead .mer-proof-card__value { color: #fff; }
.mer-proof-card--lead .mer-proof-card__value strong { font-size: clamp(4.4rem, 7vw, 8.4rem); }
.mer-proof-card--lead .mer-proof-card__value span { color: #f3cf75; }

.mer-proof-card > p:not(.mer-proof-card__value):not(.mer-proof-card__label) {
  margin: 0;
  color: #333a47;
  font-size: 0.93rem;
  font-weight: 700;
  line-height: 1.75;
}

.mer-proof-card--lead > p:not(.mer-proof-card__value):not(.mer-proof-card__label) { color: rgba(255, 255, 255, 0.88); }

.mer-proof-card small {
  margin-top: 7px;
  color: rgba(32, 36, 44, 0.68);
  font-size: 0.7rem;
}

.mer-proof-card--lead small { color: rgba(255, 255, 255, 0.54); }

/* practice */
.mer-intro {
  max-width: 43em;
  margin: clamp(36px, 5vh, 64px) 0 0;
  color: var(--mer-ink-soft);
  font-size: clamp(1rem, 1.2vw, 1.2rem);
  line-height: 2;
}

.mer-service-list {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(12px, 1.5vw, 20px);
  margin-top: clamp(72px, 12vh, 140px);
}

.mer-service {
  position: relative;
  grid-column: span 6;
  min-height: 300px;
  padding: clamp(28px, 3vw, 48px);
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: clamp(24px, 2.4vw, 34px);
  background: rgba(255, 255, 255, 0.46);
  box-shadow: 0 22px 70px rgba(53, 69, 107, 0.07);
  backdrop-filter: blur(16px) saturate(1.08);
  transition: color 0.45s ease, background 0.45s ease, transform 0.45s var(--mer-ease);
}

.mer-service:first-child,
.mer-service:last-child { grid-column: span 7; }

.mer-service:nth-child(2),
.mer-service:nth-child(3) { grid-column: span 5; }

.mer-service:first-child {
  color: #fff;
  background:
    radial-gradient(circle at 90% 8%, rgba(117, 156, 243, 0.38), transparent 34%),
    linear-gradient(145deg, rgba(27, 57, 122, 0.97), rgba(39, 50, 89, 0.96));
  border-color: rgba(255, 255, 255, 0.18);
}

.mer-service:hover {
  color: #fff;
  background: rgba(32, 57, 114, 0.94);
  transform: translateY(-5px);
}

.mer-service__label {
  margin: 0 0 auto;
  color: rgba(35, 58, 109, 0.62);
  font-family: var(--mer-latin);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.mer-service:first-child .mer-service__label,
.mer-service:hover .mer-service__label { color: #cad8ff; }

.mer-service h3 {
  margin: 0 0 28px;
  color: #1e315e;
  font-size: clamp(1.5rem, 2vw, 2.15rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.04em;
  text-wrap: balance;
  word-break: keep-all;
  overflow-wrap: normal;
}

.mer-service:first-child h3,
.mer-service:hover h3 { color: #fff; }

.mer-service > p:last-child {
  margin: 0;
  color: var(--mer-ink-soft);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.85;
}

.mer-service:first-child > p:last-child,
.mer-service:hover > p:last-child { color: rgba(255, 255, 255, 0.78); }

/* about */
.mer-about-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(58px, 10vw, 150px);
  align-items: center;
}

.mer-portrait { margin: 0; }

.mer-portrait__frame {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 42% 42% 18px 18px;
  background: linear-gradient(145deg, rgba(168, 204, 239, 0.42), rgba(242, 221, 160, 0.32), rgba(235, 176, 173, 0.38));
  box-shadow: 0 40px 100px rgba(52, 68, 103, 0.16);
}

.mer-portrait__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 56%, rgba(23, 35, 65, 0.22));
  pointer-events: none;
}

.mer-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(0.82) contrast(1.03);
  transform: scale(1.02);
}

.mer-portrait figcaption {
  margin-top: 17px;
  color: rgba(32, 36, 44, 0.72) !important;
  font-family: var(--mer-latin);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.mer-about-copy .mer-prose {
  margin-top: clamp(42px, 6vh, 70px);
}

.mer-text-link {
  display: inline-flex;
  gap: 1.2em;
  align-items: center;
  margin-top: 30px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(32, 36, 44, 0.40);
  color: #1e315e;
  font-weight: 800;
}

.mer-text-link span { transition: transform 0.35s var(--mer-ease); }
.mer-text-link:hover span { transform: translate(4px, -4px); }

/* compact company details */
.mer-company-compact {
  display: grid;
  grid-template-columns: minmax(220px, 0.58fr) minmax(360px, 1.42fr);
  gap: clamp(54px, 9vw, 130px);
  align-items: start;
  margin-top: clamp(100px, 15vh, 170px);
  padding-top: clamp(58px, 8vh, 92px);
  border-top: 1px solid rgba(35, 54, 96, 0.16);
}

.mer-company-list { margin: 0; }

.mer-company-list > div {
  display: grid;
  grid-template-columns: 8em minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--mer-line);
}

.mer-company-list > div:last-child { border-bottom: 1px solid var(--mer-line); }

.mer-company-list dt {
  color: rgba(32, 36, 44, 0.68);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.mer-company-list dd {
  margin: 0;
  color: #29303b;
  font-size: 0.94rem;
  font-weight: 700;
}

/* CTA */
.mer-cta {
  min-height: 110svh;
  display: grid;
  align-items: center;
}

.mer-cta::before {
  inset: 6% 4%;
  background:
    radial-gradient(circle at 28% 22%, rgba(168, 204, 239, 0.34), transparent 42%),
    radial-gradient(circle at 76% 72%, rgba(235, 176, 173, 0.28), transparent 44%),
    rgba(255, 255, 255, 0.46);
  border: 1px solid rgba(255, 255, 255, 0.64);
  box-shadow: 0 44px 130px rgba(50, 66, 105, 0.11);
  /* 強いぼかしを入れると、背後で一語へ戻るロゴが「汚れ」に化ける。
     板の透け具合で分離を作り、ぼかしは軽く留める。 */
  backdrop-filter: blur(3px) saturate(1.04);
}

.mer-cta__inner { max-width: 1050px; }

.mer-heading--cta { font-size: clamp(3.3rem, 5.4vw, 5.4rem); }

.mer-cta__copy {
  max-width: 36em;
  margin: clamp(38px, 6vh, 72px) 0 0;
  color: #424a57;
  font-size: clamp(1rem, 1.28vw, 1.23rem);
  line-height: 2.05;
  text-wrap: pretty;
}

.mer-primary-cta {
  position: relative;
  width: min(560px, 100%);
  margin-top: clamp(44px, 7vh, 82px);
  padding: 24px 84px 24px 28px;
  display: grid;
  gap: 4px;
  border: 1px solid rgba(31, 53, 103, 0.22);
  border-radius: 20px;
  color: #fff;
  background: linear-gradient(110deg, #1b397a, #365fae 64%, #814358 126%);
  box-shadow: 0 20px 60px rgba(31, 58, 116, 0.20);
  transition: transform 0.45s var(--mer-ease), box-shadow 0.45s ease;
}

.mer-primary-cta:hover {
  transform: translateY(-6px);
  box-shadow: 0 30px 80px rgba(31, 58, 116, 0.28);
}

.mer-primary-cta > span { font-size: 1.02rem; font-weight: 800; }
.mer-primary-cta small { color: rgba(255, 255, 255, 0.64); font-family: var(--mer-latin); font-size: 0.68rem; letter-spacing: 0.08em; }
.mer-primary-cta i { position: absolute; top: 50%; right: 30px; font-style: normal; font-size: 1.45rem; transform: translateY(-50%); }

/* ---------- footer ---------- */
.mer-footer {
  position: relative;
  z-index: 3;
  padding: 70px 0 34px;
  color: rgba(255, 255, 255, 0.78);
  background: #202b45;
}

.mer-footer__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px 50px;
  align-items: end;
}

.mer-wordmark--footer { color: #fff; font-size: 2.4rem; }
.mer-footer__inner > p:not(.mer-wordmark) { margin: 0; font-size: 0.86rem; }
.mer-footer__links { justify-self: end; display: flex; gap: 24px; font-family: var(--mer-latin); font-size: 0.74rem; font-weight: 700; }
.mer-footer__links a:hover { color: #fff; }
.mer-footer small { grid-column: 1 / -1; margin-top: 45px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.13); font-family: var(--mer-latin); font-size: 0.67rem; }

/* ---------- hint / cursor / reveal ---------- */
.bs-hint {
  position: fixed;
  right: clamp(18px, 2.5vw, 40px);
  bottom: 24px;
  z-index: 40;
  display: flex;
  gap: 12px;
  align-items: center;
  color: rgba(32, 36, 44, 0.46);
  font-family: var(--mer-latin);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  writing-mode: vertical-rl;
  transition: opacity 0.35s ease;
}

.bs-hint__line {
  display: block;
  width: 1px;
  height: 54px;
  background: rgba(32, 36, 44, 0.28);
  transform-origin: top;
  animation: mer-scroll-line 2.2s ease-in-out infinite;
}

@keyframes mer-scroll-line {
  0%, 100% { transform: scaleY(0.25); opacity: 0.45; }
  45% { transform: scaleY(1); opacity: 1; }
}

.bs-hint.is-hidden { opacity: 0; }

.bs-cursor {
  border: 1px solid rgba(31, 53, 103, 0.62) !important;
  background: transparent !important;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.45) inset;
}

.bs-cursor.is-active { background: rgba(255, 255, 255, 0.90) !important; }

.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 1.05s var(--mer-ease), transform 1.05s var(--mer-ease);
}

.has-js [data-reveal="zoom"] { transform: translateY(24px) scale(1.06); }
.has-js [data-reveal].is-in { opacity: 1; transform: none; }

.is-locked .mer-header {
  visibility: hidden;
  pointer-events: none;
}

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .mer-nav {
    display: flex;
    gap: clamp(10px, 2.1vw, 22px);
    font-size: 0.7rem;
    letter-spacing: 0.05em;
  }
  .mer-nav-cta { display: none; }
  .mer-header.bs-header { grid-template-columns: 1fr auto; }

  .mer-beat--hero.bs-beat {
    min-height: auto;
    grid-template-columns: 1fr;
    row-gap: 58px;
    padding-top: 130px;
    padding-bottom: 110px;
  }
  .mer-beat__inner,
  .mer-beat--hero .mer-beat__inner { width: min(760px, 100%); }
  .mer-display--hero { font-size: clamp(3.2rem, 6.8vw, 5.2rem); }
  .mer-lead-film { width: min(900px, 100%); margin: 0; }

  .mer-philosophy__layout,
  .mer-grid--story,
  .mer-company-compact { grid-template-columns: 1fr; }

  .mer-philosophy__layout {
    grid-template-areas:
      "head"
      "copy"
      "visual"
      "principles";
  }

  .mer-editorial-visual { width: min(720px, 100%); margin-left: auto; }

  .mer-grid--story .mer-prose { margin-left: auto; }

  .mer-proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: auto;
  }
  .mer-proof-card--lead { grid-column: 1 / -1; grid-row: auto; min-height: 360px; }
  .mer-proof-card:nth-child(4) { grid-column: 1 / -1; }

  .mer-service-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mer-service,
  .mer-service:first-child,
  .mer-service:last-child,
  .mer-service:nth-child(2),
  .mer-service:nth-child(3) { grid-column: auto; }

  .mer-about-grid { gap: 55px; }
  .mer-service { min-height: 300px; }
}

@media (max-width: 720px) {
  :root { --pad: clamp(20px, 6vw, 30px); }

  .mer-aurora__orb { width: 105vw; filter: blur(72px); opacity: 0.27; }
  .mer-aurora__orb--blue { top: -14%; left: -45%; }
  .mer-aurora__orb--yellow { top: 34%; right: -55%; }
  .mer-aurora__orb--red { bottom: -14%; left: -15%; }

  .mer-header.bs-header { min-height: 68px; padding-block: 13px; }
  .mer-nav-cta { padding: 8px 14px; font-size: 0.68rem; }
  .mer-nav { display: none; }
  .mer-header.bs-header { grid-template-columns: 1fr; }

  .mer-static-stage {
    top: 16vh;
    right: -48px;
    opacity: 0.40;
  }
  .mer-mark--static { width: 210px; }

  .mer-beat.bs-beat,
  .mer-beat--statement.bs-beat {
    min-height: 64svh;
    padding-top: 110px;
    padding-bottom: 82px;
    justify-items: start;
    text-align: left;
  }

  .mer-beat--short.bs-beat { min-height: 46svh; }
  .mer-beat--compact.bs-beat { min-height: 70svh; }
  .mer-beat--hero.bs-beat { min-height: auto; padding-top: 120px; padding-bottom: 96px; row-gap: 46px; }
  .mer-beat--statement.bs-beat { min-height: 72svh; }
  .mer-beat--promise.bs-beat { min-height: 84svh; }
  .mer-beat__inner,
  .mer-beat--center .mer-beat__inner { width: min(100%, 560px); margin: 0; }
  .mer-beat__inner::before { inset: -10% -16%; }

  .mer-display,
  .mer-heading {
    overflow-wrap: normal;
    word-break: normal;
    line-break: strict;
    text-wrap: balance;
  }
  .mer-phrase { display: inline; }
  .mer-display { font-size: clamp(2.18rem, 10.2vw, 3.65rem); line-height: 1.13; }
  .mer-display--medium { font-size: clamp(2.25rem, 10.5vw, 3.8rem); }
  .mer-display--hero { font-size: clamp(2.3rem, 10vw, 4.15rem); line-height: 1.06; }
  .mer-display--xl { font-size: clamp(2.55rem, 11vw, 4.4rem); }
  .mer-beat--center .mer-promise-note { margin-inline: 0; }
  .mer-beat__path { margin-left: 0; justify-content: flex-start; flex-wrap: wrap; gap: 9px; }
  .mer-beat__path i { width: 18px; }

  .mer-lead-film { width: 100%; margin: 0; border-radius: 20px; }
  .mer-lead-film figcaption { align-items: flex-start; flex-direction: column; gap: 8px; }

  .mer-philosophy.bs-beat {
    min-height: auto;
    padding-top: 110px;
    padding-bottom: 110px;
    justify-items: start;
    text-align: left;
  }
  .mer-philosophy__layout { width: 100%; gap: 55px; }
  .mer-principles { grid-template-columns: 1fr; }
  .mer-principles article + article { border-top: 1px solid rgba(35, 54, 96, 0.16); border-left: 0; }

  .mer-section { min-height: auto; padding: 120px 0; }
  .mer-section::before { inset: 2% 0; border-radius: 30px; }
  .mer-story::before { inset: 0; border-radius: 0; }
  .mer-heading { font-size: clamp(2rem, 9vw, 3.2rem); }
  .mer-heading--large { font-size: clamp(2.75rem, 12vw, 4.3rem); }
  .mer-heading--small { font-size: clamp(1.45rem, 7vw, 2rem); }

  .mer-grid--story { grid-template-columns: 1fr; }
  .mer-grid--story .mer-prose { margin-left: 0; }
  .mer-story-visual img { aspect-ratio: 4 / 3; }
  .mer-prose { padding: 24px; border-radius: 22px; }

  .mer-proof-grid,
  .mer-service-list { grid-template-columns: 1fr; grid-template-rows: auto; }
  .mer-proof-card,
  .mer-service { min-height: 250px; }
  .mer-proof-card--lead,
  .mer-proof-card:nth-child(4) { grid-column: auto; grid-row: auto; }
  .mer-proof-card--lead { min-height: 330px; }
  .mer-proof-card--lead .mer-proof-card__value strong { font-size: clamp(3.8rem, 18vw, 6rem); }

  .mer-service { min-height: 290px; }
  .mer-service h3 { font-size: clamp(1.45rem, 7vw, 1.9rem); }

  .mer-about-grid { grid-template-columns: 1fr; }
  .mer-portrait__frame { width: min(100%, 460px); }

  .mer-company-compact { margin-top: 95px; padding-top: 55px; gap: 40px; }
  .mer-company-list > div { grid-template-columns: 6.2em minmax(0, 1fr); gap: 14px; }
  .mer-company-list dd { font-size: 0.85rem; }

  .mer-cta { min-height: 100svh; }
  .mer-cta::before { inset: 2% 0; }
  .mer-heading--cta { font-size: clamp(2.7rem, 11.5vw, 4.3rem); }
  .mer-primary-cta { padding: 21px 66px 21px 21px; }

  .mer-footer__inner { grid-template-columns: 1fr; align-items: start; }
  .mer-footer__links { justify-self: start; flex-wrap: wrap; }
  .mer-footer small { margin-top: 24px; }

  .bs-hint { display: none; }
}

@media (max-width: 420px) {
  .mer-display--hero { font-size: clamp(2.05rem, 10vw, 2.8rem); }
  .mer-display,
  .mer-display--medium { font-size: clamp(2.08rem, 9.9vw, 3rem); }
  .mer-display--xl { font-size: clamp(2.55rem, 11.8vw, 3.7rem); }
  .mer-heading { font-size: clamp(2.12rem, 9.8vw, 3.15rem); }
  .mer-heading--large { font-size: clamp(2.55rem, 11.7vw, 3.75rem); }
  .mer-heading--cta { font-size: clamp(2.6rem, 11vw, 3.5rem); }
  .mer-proof-card__value strong { font-size: 3rem; }
  .mer-proof-card--lead .mer-proof-card__value strong { font-size: clamp(3.5rem, 17vw, 4.9rem); }
}

/* ---------- reduced motion / static fallback ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .mer-aurora__orb { transform: none !important; }
  .mer-display,
  .mer-heading { background-position: 42% 50%; }
  .bs-cursor,
  .bs-hint { display: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .mer-static-stage { opacity: 0.56; }
}

@media (forced-colors: active) {
  .mer-display,
  .mer-heading {
    color: CanvasText;
    background: none;
    -webkit-text-fill-color: CanvasText;
  }
  .mer-mark { display: none; }
}