/* ==========================================================================
   Σigma Studio ランディング (/sigma-studio)
   墨のヒーロー（白黒のループ動画）→ 実画面 → 紙の本文 → 墨のデモと入手。
   文章とアイコンのアニメーション（公転・切り替わる見出し・MCP の図）は前のページを引き継ぐ。
   画面写真はすべてデスクトップ版の実画面で、教材・参加者・問題はダミー。
   layout.tsx からこのルートだけで読み込むが、クライアント遷移の後も残るので、
   素のタグや他ページのクラスには当てない。紙・墨・橙はサイト共通のトークンを使う。
   ========================================================================== */

.slp {
  --slp-ink: #0c0d10;
  --slp-ink-raise: rgba(255, 255, 255, 0.04);
  --slp-ink-line: rgba(255, 255, 255, 0.12);
  --slp-ink-text: rgba(255, 255, 255, 0.68);
  /* globals.css の .sigma-lp-root の --sigma-topbar-h（エディタの窓の高さ計算）と揃える */
  --slp-topbar-h: 60px;
  --slp-ease: cubic-bezier(0.2, 0.7, 0.2, 1);

  color: var(--ink);
  background: var(--paper);
}

/* ── ボタン ── */

.slp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0 1.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition:
    background-color 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease,
    box-shadow 0.16s ease;
}

.slp-btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}

.slp-btn .slp-btn-mark {
  width: 15px;
  height: 15px;
}

.slp-btn-sm {
  min-height: 38px;
  padding: 0 1rem;
  font-size: 0.8125rem;
}

.slp-btn-light {
  background: #f5f4f0;
  color: var(--slp-ink);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.slp-btn-light:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.3);
}

.slp-btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  background: transparent;
  color: #fff;
}

.slp-btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.08);
}

/* ── トップバー ── */

.slp-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--slp-topbar-h);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  color: #fff;
}

.slp-topbar-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  height: 100%;
}

.slp-topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.slp-home-mark {
  display: grid;
  flex: none;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  padding-right: 0.9rem;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
  box-sizing: content-box;
  font-size: 1.3rem;
  line-height: 1;
  transition: opacity 0.16s ease;
}

.slp-home-mark:hover {
  opacity: 0.7;
}

.slp-brand {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.slp-brand .sigma-glyph {
  margin-right: 0.04em;
  font-size: 1.12em;
}

.slp-nav {
  display: flex;
  gap: 1.6rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
}

.slp-nav a {
  position: relative;
  transition: color 0.16s ease;
}

/* 下線が左から伸びる */
.slp-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--slp-ease);
}

.slp-nav a:hover {
  color: #fff;
}

.slp-nav a:hover::after {
  transform: scaleX(1);
}

.slp-topbar-end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
}

.slp-icon-link {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.85);
  transition:
    background-color 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease;
}

.slp-icon-link svg {
  width: 17px;
  height: 17px;
}

.slp-icon-link:hover {
  background: #5865f2;
  border-color: #5865f2;
  color: #fff;
  transform: translateY(-1px);
}

/* ── ヒーロー（白黒のループ動画） ── */

.slp-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: calc(100svh - var(--slp-topbar-h));
  min-height: calc(100vh - var(--slp-topbar-h));
  overflow: hidden;
  background: #0a0a0a;
  color: #fff;
}

.hero-video-bg--sigma .hero-video {
  filter: grayscale(1) contrast(1.02);
}

.slp-hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 1.15rem;
  max-width: 52rem;
  padding-block: clamp(2rem, 8vh, 5rem);
  text-align: center;
}

/* 読み込み時に、上から順に浮き上がる */
.slp-rise {
  animation: slp-rise 0.9s var(--slp-ease) both;
}

.slp-hero-copy > .slp-rise:nth-child(2) {
  animation-delay: 0.08s;
}

.slp-hero-copy > .slp-rise:nth-child(3) {
  animation-delay: 0.18s;
}

.slp-hero-copy > .slp-rise:nth-child(4) {
  animation-delay: 0.3s;
}

.slp-hero-copy > .slp-rise:nth-child(5) {
  animation-delay: 0.42s;
}

@keyframes slp-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

.slp-announce {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  max-width: 100%;
  padding: 0.3rem 0.9rem 0.3rem 0.35rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.88);
  transition: border-color 0.16s ease;
}

.slp-announce:hover {
  border-color: rgba(255, 255, 255, 0.45);
}

.slp-announce > span {
  flex: none;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  background: var(--orange);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.slp-announce b {
  font-weight: inherit;
}

.slp-announce svg {
  width: 14px;
  height: 14px;
  flex: none;
  transition: transform 0.2s var(--slp-ease);
}

.slp-announce:hover svg {
  transform: translateX(3px);
}

.slp-announce-short {
  display: none;
}

.slp-hero-kicker {
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.78);
}

.slp-hero-title {
  font-family: var(--serif);
  font-size: clamp(2.35rem, 6.2vw, 4.25rem);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: 0.04em;
  color: #fff;
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.45);
}

.slp-hero-sub {
  max-width: 36rem;
  font-size: clamp(0.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
}

.slp-hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.slp-hero-cta .slp-btn {
  min-width: 13.5rem;
}

.slp-hero-scroll {
  position: relative;
  z-index: 2;
  justify-self: center;
  margin-bottom: 1.35rem;
  font-family: var(--mono);
  font-size: 0.625rem;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.7);
  animation: scroll-hint 2.6s ease-in-out infinite;
}

/* ── 実画面（スクロールで手前に起き上がる） ── */

.slp-showcase {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1rem, 3vw, 2rem);
  background: linear-gradient(to bottom, #0a0a0a 0 34%, var(--paper) 34%);
}

.slp-showcase-frame {
  perspective: 1800px;
}

.slp-showcase-window {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 16px;
  background: #fff;
  box-shadow:
    0 60px 140px rgba(0, 0, 0, 0.35),
    0 14px 34px rgba(0, 0, 0, 0.16);
  transform-origin: 50% 0%;
}

.slp-showcase-window img {
  display: block;
  width: 100%;
  height: auto;
}

@supports (animation-timeline: view()) {
  .slp-showcase-window {
    animation: slp-showcase-rise linear both;
    animation-timeline: view();
    animation-range: entry 0% cover 42%;
  }
}

@keyframes slp-showcase-rise {
  from {
    transform: rotateX(28deg) scale(0.88) translateY(30px);
  }
  to {
    transform: none;
  }
}

/* ── 本文の節 ── */

.slp-section {
  padding-block: clamp(4.5rem, 9vw, 8.5rem);
  border-top: 1px solid var(--line);
}

.slp-showcase + .slp-section {
  border-top: 0;
}

.slp-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* 番号のあとに細い罫を一本 */
.slp-eyebrow > span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--orange-dark);
}

.slp-eyebrow > span:first-child::after {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

.slp-soon,
.slp-new {
  display: inline-flex;
  align-items: center;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: none;
}

.slp-soon {
  border: 1px dashed var(--orange-dark);
  color: var(--orange-dark);
}

.slp-new {
  background: var(--orange);
  color: #fff;
}

.slp-h2 {
  font-family: var(--serif);
  font-size: clamp(1.85rem, 3.8vw, 2.85rem);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -0.015em;
  word-break: auto-phrase;
}

.slp-h3 {
  font-family: var(--serif);
  font-size: clamp(1.65rem, 3.2vw, 2.45rem);
  font-weight: 400;
  line-height: 1.3;
}

.slp-lede {
  max-width: 42ch;
  margin-top: 1rem;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--ink-soft);
  word-break: auto-phrase;
  text-wrap: pretty;
}

.slp-lede a {
  margin-inline: 0.15em;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  font-weight: 600;
  transition: border-color 0.16s ease;
}

.slp-lede a:hover {
  border-color: var(--ink);
}

.slp-nowrap {
  white-space: nowrap;
}

.slp-footnote {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--muted);
}

.slp-footnote svg {
  width: 15px;
  height: 15px;
  flex: none;
  margin-top: 0.3rem;
}

.slp-footnote a {
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-soft);
}

/* ── THE STACK（前のページの公転と見出し。規則は下の「引き継ぎ」） ── */

.sigma-equation .slp-lede {
  margin-top: 1rem;
}

/* 公転を止めた環境（モーション低減）でも、衛星のアイコンを正立させておく */
.slp .sigma-orbit-counter {
  transform: rotate(calc(-1 * var(--orbit-angle)));
}

/* ── THE POINT ── */

.slp-pitch-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.slp-pitch-body {
  display: grid;
  gap: 1.15rem;
  max-width: 54ch;
  font-size: 1rem;
  line-height: 2;
  color: var(--ink-soft);
}

/* ── 3 つの魅力 ── */

.slp-feature-warm {
  background: var(--paper-warm);
}

.slp-feature-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem clamp(2rem, 5vw, 4.5rem);
  align-items: end;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.slp-feature-head .slp-lede {
  margin-top: 0;
}

.slp-providers {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.slp-providers li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.85rem 0.3rem 0.35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  font-size: 0.8125rem;
  font-weight: 600;
  transition:
    transform 0.2s var(--slp-ease),
    box-shadow 0.2s ease;
}

.slp-providers li:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(20, 22, 26, 0.08);
}

.slp-providers-icon {
  width: 22px;
  height: 22px;
  padding: 2px;
  border-radius: 50%;
  object-fit: contain;
}

/* 実画面のツアー */
.slp-tour {
  display: grid;
  gap: 0.5rem;
}

.slp-tour-window {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: #fff;
  box-shadow:
    0 40px 100px rgba(20, 22, 26, 0.16),
    0 8px 24px rgba(20, 22, 26, 0.07);
}

.slp-tour-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-bottom: 1px solid #e7e4dd;
  background: #f4f3ef;
}

.slp-tour-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #d8d5ce;
}

.slp-tour-bar p {
  flex: 1;
  margin-right: 46px;
  overflow: hidden;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
}

.slp-tour-stage {
  position: relative;
  aspect-ratio: 1440 / 900;
  overflow: hidden;
  background: #fff;
}

.slp-tour-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform-origin: 50% 35%;
  transition: opacity 0.7s ease;
}

.slp-tour-frame[data-active] {
  opacity: 1;
}

/* 表示中のコマはゆっくり寄る */
.slp-tour[data-playing] .slp-tour-frame[data-active] {
  animation: slp-tour-zoom var(--tour-ms) ease-out both;
}

@keyframes slp-tour-zoom {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.025);
  }
}

.slp-tour-steps {
  display: grid;
  grid-template-columns: repeat(var(--tour-count), minmax(0, 1fr));
}

.slp-tour-steps button {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.7rem;
  width: 100%;
  height: 100%;
  padding: 1rem 0.75rem 0.5rem 0;
  border: 0;
  border-top: 1px solid var(--line);
  background: none;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}

.slp-tour-steps button:hover,
.slp-tour-steps button[aria-current] {
  color: var(--ink);
}

.slp-tour-n {
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.9;
  letter-spacing: 0.08em;
}

.slp-tour-steps button[aria-current] .slp-tour-n {
  color: var(--orange-dark);
}

.slp-tour-copy strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
}

.slp-tour-copy span {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.75;
}

/* 上の罫が、表示時間に合わせて伸びる */
.slp-tour-progress {
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
}

.slp-tour-steps button[aria-current] .slp-tour-progress {
  transform: scaleX(1);
}

.slp-tour[data-playing] .slp-tour-steps button[aria-current] .slp-tour-progress {
  animation: slp-tour-progress var(--tour-ms) linear both;
}

@keyframes slp-tour-progress {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

/* ── 04 動画生成 ── */

.slp-video {
  background: var(--paper-warm);
}

.slp-video-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 25rem);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.slp-steps {
  display: grid;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.slp-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}

.slp-step-n {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--white);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
}

.slp-steps h3 {
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.6;
}

.slp-steps p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.slp-video-sample {
  display: grid;
  justify-items: center;
  gap: 0.75rem;
}

.slp-video-sample figcaption {
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}

.slp-tweet {
  width: min(100%, 25rem);
}

/* widgets.js が置き換えるまでの引用カード */
.slp-tweet blockquote.twitter-tweet {
  display: grid;
  gap: 0.7rem;
  padding: 0.75rem 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 20px 50px rgba(20, 22, 26, 0.1);
  font-size: 0.875rem;
  line-height: 1.7;
}

.slp-tweet blockquote.twitter-tweet > p {
  padding-inline: 0.35rem;
}

.slp-tweet-poster {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 12px;
  background: var(--slp-ink);
}

.slp-tweet-poster img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 34rem;
  object-fit: cover;
}

.slp-tweet-play {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: rgba(12, 13, 16, 0.72);
  color: #fff;
  transform: translate(-50%, -50%);
}

.slp-tweet-play svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
  fill: currentColor;
}

.slp-tweet-meta {
  font-size: 0.78rem;
  color: var(--muted);
}

.slp-tweet-meta a {
  border-bottom: 1px solid var(--line-strong);
}

.slp-tweet .twitter-tweet-rendered {
  margin: 0 auto !important;
}

/* ── ライブデモ ── */

.slp-try {
  padding: clamp(4rem, 8vw, 6rem) 0 clamp(3rem, 6vw, 5rem);
  background: var(--void);
  color: #fff;
}

.slp-try-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem 2rem;
  align-items: end;
}

.slp-try-head .slp-h2 {
  color: #fff;
}

.slp-try-note {
  max-width: 42ch;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.62);
}

/* 窓の大きさ・包含は globals.css の .sigma-editor-stage が持つ */
.slp .sigma-editor-stage {
  border: 1px solid var(--slp-ink-line);
}

/* この編集は、あなたのAIでできます（前のページの図） */
.slp-mcp {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: end;
  margin-top: clamp(2rem, 4.5vw, 4rem);
  padding-top: clamp(1.75rem, 3.5vw, 3rem);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.slp-mcp .mono-label {
  color: rgba(255, 255, 255, 0.48);
}

.slp-mcp .slp-h3 {
  margin-top: 0.65rem;
  color: #fff;
}

.slp-mcp-copy > p:last-child {
  margin-top: 0.8rem;
  max-width: 38rem;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.62);
}

/* 線の上を点が流れる */
.slp-mcp .sigma-mcp-lines path {
  stroke-dasharray: 5 7;
  animation: slp-mcp-flow 1.4s linear infinite;
}

.slp-mcp .sigma-mcp-lines path:nth-child(2) {
  animation-delay: -0.45s;
}

.slp-mcp .sigma-mcp-lines path:nth-child(3) {
  animation-delay: -0.9s;
}

@keyframes slp-mcp-flow {
  to {
    stroke-dashoffset: -24;
  }
}

/* 中心の Σ から波紋 */
.slp-mcp .sigma-mcp-hub::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 12px;
  animation: slp-mcp-pulse 2.4s ease-out infinite;
  pointer-events: none;
}

@keyframes slp-mcp-pulse {
  from {
    opacity: 0.8;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(1.7);
  }
}

.slp-mcp .sigma-ai-tools > li {
  transition:
    transform 0.2s var(--slp-ease),
    border-color 0.2s ease;
}

.slp-mcp .sigma-ai-tools > li:hover {
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateX(4px);
}

/* ── FEATURES ── */

.slp-basics-head {
  max-width: 40rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.slp-basics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.slp-basics-grid li {
  display: grid;
  align-content: start;
  gap: 0.75rem;
  padding: clamp(1.35rem, 2.8vw, 1.85rem);
  background: var(--paper);
  transition: background-color 0.2s ease;
}

.slp-basics-grid li:hover {
  background: var(--white);
}

.slp-basics-icon {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  background: var(--orange-soft);
  transition: transform 0.3s var(--slp-ease);
}

.slp-basics-grid li:hover .slp-basics-icon {
  transform: translateY(-3px) rotate(-8deg);
}

.slp-basics-icon svg {
  width: 21px;
  height: 21px;
  color: var(--orange-dark);
}

.slp-basics-grid h3 {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.45;
}

.slp-basics-grid p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

/* ── 支援 ── */

.slp-supporters {
  padding-block: clamp(3rem, 6vw, 4.5rem);
  border-top: 1px solid var(--line);
}

/* ブロック側の罫と余白は、この節が持つので打ち消す */
.slp-supporters .supporter-block {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

/* ── ダウンロード ── */

.slp-download {
  padding-block: clamp(4.5rem, 9vw, 7.5rem) 2.5rem;
  background: var(--ink);
  color: #fff;
}

.slp-download-head .mono-label {
  color: rgba(255, 255, 255, 0.55);
}

.slp-download-head .slp-h2 {
  color: #fff;
}

.slp-download-head .slp-lede {
  max-width: 46rem;
  color: rgba(255, 255, 255, 0.72);
}

.slp-platforms {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.slp-platform {
  display: grid;
  align-content: start;
  gap: 0.9rem;
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--slp-ink-line);
  border-radius: 18px;
  background: var(--slp-ink-raise);
  transition:
    border-color 0.2s ease,
    transform 0.25s var(--slp-ease);
}

.slp-platform:hover {
  transform: translateY(-3px);
}

.slp-platform[data-current] {
  border-color: rgba(242, 138, 24, 0.65);
  background: rgba(242, 138, 24, 0.06);
  animation: slp-current-glow 3.2s ease-in-out infinite;
}

@keyframes slp-current-glow {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(242, 138, 24, 0);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(242, 138, 24, 0.08);
  }
}

.slp-platform header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.slp-platform-mark {
  width: 22px;
  height: 22px;
  color: #fff;
}

.slp-platform h3 {
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 400;
  color: #fff;
}

.slp-platform-here {
  margin-left: auto;
  padding: 0.1rem 0.6rem;
  border: 1px solid rgba(242, 199, 154, 0.45);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--neon-soft);
  white-space: nowrap;
}

.slp-platform p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--slp-ink-text);
}

.slp-platform .slp-btn {
  justify-self: start;
  margin-top: 0.35rem;
}

.slp-platform .slp-platform-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.slp-platform-meta a {
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.68);
  transition: color 0.16s ease;
}

.slp-platform-meta a:hover {
  color: #fff;
}

.slp-platform-note {
  grid-column: 1 / -1;
  font-size: 0.85rem;
  color: var(--slp-ink-text);
}

.slp-community {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem clamp(2rem, 5vw, 4rem);
  align-items: center;
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
  padding-top: 2rem;
  border-top: 1px solid var(--slp-ink-line);
}

.slp-discord {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.1rem 1.25rem;
  border: 1px solid rgba(88, 101, 242, 0.5);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(88, 101, 242, 0.22), rgba(88, 101, 242, 0.06));
  transition:
    transform 0.25s var(--slp-ease),
    border-color 0.2s ease;
}

.slp-discord:hover {
  border-color: #5865f2;
  transform: translateY(-2px);
}

.slp-discord-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 14px;
  background: #5865f2;
  color: #fff;
}

.slp-discord-mark svg {
  width: 24px;
  height: 24px;
}

.slp-discord:hover .slp-discord-mark svg {
  animation: slp-wiggle 0.5s ease;
}

@keyframes slp-wiggle {
  25% {
    transform: rotate(-10deg);
  }
  75% {
    transform: rotate(8deg);
  }
}

.slp-discord-copy strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.slp-discord-copy span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.84rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.68);
}

.slp-discord > svg {
  width: 18px;
  height: 18px;
  color: rgba(255, 255, 255, 0.7);
}

.slp-oss p {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--slp-ink-text);
}

.slp-oss ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin-top: 0.75rem;
}

.slp-oss a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.82);
  transition:
    color 0.16s ease,
    border-color 0.16s ease;
}

.slp-oss a:hover {
  border-color: #fff;
  color: #fff;
}

.slp-oss a svg {
  width: 13px;
  height: 13px;
}

.slp-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-top: clamp(3rem, 6vw, 4.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--slp-ink-line);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
}

.slp-footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.16s ease;
}

.slp-footer a:hover {
  color: #fff;
}

.slp-footer svg {
  width: 14px;
  height: 14px;
}

/* ── 画面幅ごとの組み替え ── */

@media (max-width: 900px) {
  .slp-topbar-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .slp-nav {
    display: none;
  }

  .slp-pitch-grid,
  .slp-feature-head,
  .slp-video-grid,
  .slp-mcp,
  .slp-community {
    grid-template-columns: minmax(0, 1fr);
  }

  .slp-basics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .slp-try-head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .slp-home-mark {
    padding-right: 0.7rem;
  }

  .slp-brand {
    font-size: 1.05rem;
  }

  .slp-announce-long {
    display: none;
  }

  .slp-announce-short {
    display: inline;
  }

  .slp-hero-title {
    font-size: clamp(1.95rem, 9vw, 2.65rem);
    letter-spacing: 0.02em;
  }

  .slp-hero-cta {
    display: grid;
    width: 100%;
  }

  .slp-showcase {
    background: linear-gradient(to bottom, #0a0a0a 0 22%, var(--paper) 22%);
  }

  .slp-showcase-window,
  .slp-tour-window {
    border-radius: 10px;
  }

  .slp-tour-bar p {
    display: none;
  }

  .slp-tour-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .slp-tour-copy span {
    display: none;
  }

  .slp-basics-grid,
  .slp-platforms {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .slp-rise,
  .slp-showcase-window,
  .slp-mcp .sigma-mcp-lines path,
  .slp-mcp .sigma-mcp-hub::after,
  .slp-platform[data-current] {
    animation: none !important;
  }

  .hero-video-bg--sigma {
    background:
      #0a0a0a
      url("/images/sigma/hero-abstract.jpg")
      center / cover no-repeat;
  }
}

/* ==========================================================================
   引き継ぎ: 前のページのアイコンアニメーション
   THE STACK の公転（Σ の周りを 5 アプリが回る）、0.8 秒ごとに切り替わる見出し、
   5 本柱、MCP の接続図。前の globals.css の規則をそのまま移した。
   ========================================================================== */

/* ── 中心は小さな Σ、周囲をアプリが公転（背景は白） ── */

.sigma-orbit {
  --orbit-r: clamp(5.5rem, 16vw, 7.5rem);
  --sat-size: clamp(3.75rem, 11vw, 5rem);
  --orbit-period: 36s;
  --core-size: clamp(2.25rem, 6vw, 2.75rem);
  --icon-size: clamp(2.1rem, 6.5vw, 2.75rem);
  position: relative;
  width: min(100%, calc(var(--orbit-r) * 2 + var(--sat-size) + 1rem));
  max-width: 100%;
  aspect-ratio: 1;
  margin-inline: 0;
  color: var(--ink);
}

.sigma-orbit-ring,
.sigma-orbit-ring-soft {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.sigma-orbit-ring {
  width: calc(var(--orbit-r) * 2);
  height: calc(var(--orbit-r) * 2);
  border: 1px dashed rgba(20, 22, 26, 0.14);
}

.sigma-orbit-ring-soft {
  width: calc(var(--orbit-r) * 2 + 2rem);
  height: calc(var(--orbit-r) * 2 + 2rem);
  border: 1px solid rgba(20, 22, 26, 0.06);
}

/* 中心: 小さな白地タイルに Σ のみ（影で白背景上でも浮かぶ） */

.sigma-orbit-core {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 4;
  display: grid;
  place-items: center;
  width: var(--core-size);
  height: var(--core-size);
  border-radius: 28%;
  background: #ffffff;
  color: #0a0a0a;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.08),
    0 8px 22px rgba(0, 0, 0, 0.1);
  transform: translate(-50%, -50%);
}

.sigma-orbit-core-mark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.1rem, 3.2vw, 1.35rem);
  font-weight: 500;
  line-height: 1;
  color: #0a0a0a;
}

/* 公転レイヤ */

.sigma-orbit-spin {
  position: absolute;
  inset: 0;
  z-index: 2;
  animation: sigma-orbit-spin var(--orbit-period) linear infinite;
}

.sigma-orbit-slot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--sat-size);
  height: var(--sat-size);
  margin: calc(var(--sat-size) / -2) 0 0 calc(var(--sat-size) / -2);
  transform: rotate(var(--orbit-angle)) translateY(calc(-1 * var(--orbit-r)));
}

/* アイコンが常に正立するよう、公転を打ち消す */

.sigma-orbit-counter {
  width: 100%;
  height: 100%;
  animation: sigma-orbit-counter var(--orbit-period) linear infinite;
}

.sigma-orbit-sat {
  display: grid;
  justify-items: center;
  gap: 0.2rem;
  width: 100%;
}

.sigma-orbit-sat-icon {
  width: var(--icon-size) !important;
  height: var(--icon-size) !important;
  display: block;
  border-radius: 12px;
  background: #fff;
  box-shadow:
    0 0 0 1px rgba(20, 22, 26, 0.06),
    0 8px 20px rgba(20, 22, 26, 0.08);
  object-fit: contain;
  padding: 4px;
}

.sigma-orbit-sat-name {
  font-size: clamp(0.625rem, 1.8vw, 0.75rem);
  font-weight: 600;
  line-height: 1.15;
  white-space: nowrap;
  color: var(--ink);
}

.sigma-orbit-sat-role {
  font-family: var(--mono);
  font-size: 0.5625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* TeX ロゴは横長なので余白多め。GeoGebra / ChatGPT はマーク調整 */

.sigma-orbit-sat-tex .sigma-orbit-sat-icon {
  padding: 10px 6px;
  object-fit: contain;
}

.sigma-orbit-sat-geogebra .sigma-orbit-sat-icon {
  padding: 4px;
  object-fit: contain;
}

.sigma-orbit-sat-chatgpt .sigma-orbit-sat-icon {
  padding: 8px;
  object-fit: contain;
}

/* 軌道の直前にさりげなく置くロゴ */

.sigma-equation-logo {
  margin: 0 0 0.85rem;
  font-family: var(--serif);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.sigma-equation-logo .sigma-glyph {
  margin-right: 0.02em;
}

.sigma-app-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #fff;
  color: #0a0a0a;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.65rem;
  font-weight: 500;
  line-height: 1;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

@keyframes sigma-orbit-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes sigma-orbit-counter {
  from {
    transform: rotate(calc(-1 * var(--orbit-angle)));
  }
  to {
    transform: rotate(calc(-1 * var(--orbit-angle) - 360deg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .sigma-orbit-spin,
  .sigma-orbit-counter {
    animation: none !important;
  
  }

}

.sigma-equation {
  background: #ffffff;
}

/* 左: THE STACK〜をひとつに / 右: 軌道（横並び） */

.sigma-equation-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1.25rem, 3vw, 2.75rem);
  width: 100%;
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
}

.sigma-equation-copy {
  flex: 1 1 auto;
  min-width: 0;
  max-width: min(34rem, 52%);
}

.sigma-equation-copy .mono-label {
  margin-bottom: 0.55rem;
}

.sigma-equation-copy .sigma-section-lede {
  margin-top: 1rem;
}

.sigma-equation-title {
  display: grid;
  gap: 0.75rem;
  justify-items: start;
  width: 100%;
  min-width: 0;
}

/* 0.8s ごとにアイコン + 名前 + 役割を切り替え */

.sigma-equation-rotate {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-width: 0;
  min-height: clamp(2.5rem, 7vw, 3.1rem);
  animation: sigma-title-in 0.28s ease both;
}

@keyframes sigma-title-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.sigma-equation-app-icon {
  width: clamp(2.1rem, 5.5vw, 3rem) !important;
  height: clamp(2.1rem, 5.5vw, 3rem) !important;
  display: block;
  flex: none;
  border-radius: 11px;
  background: #fff;
  box-shadow:
    0 0 0 1px rgba(20, 22, 26, 0.06),
    0 6px 16px rgba(20, 22, 26, 0.08);
  object-fit: contain;
  padding: 4px;
}

.sigma-equation-rotate-copy {
  display: grid;
  gap: 0.12rem;
  min-width: 0;
}

.sigma-equation-rotate-name {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3.2vw, 2.35rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sigma-equation-rotate-role {
  font-family: var(--mono);
  font-size: clamp(0.625rem, 1.4vw, 0.8125rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.sigma-equation-title-text {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.85rem, 3.8vw, 2.85rem);
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink);
}

/* 枠なし。左テキストと横並びで右に置く */

.sigma-equation-orbit-slot {
  flex: 0 0 auto;
  width: min(18rem, 40vw);
  margin: 0 0 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
}

.sigma-equation-orbit-slot .sigma-orbit {
  margin-inline: 0;
}

@media (prefers-reduced-motion: reduce) {
  .sigma-equation-rotate {
    animation: none;
  
  }

}

/* スクリーンリーダー用。視覚的には隠す */

.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;
}

.sigma-eq-inline {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--muted);
  padding-inline: 0.12em;
}

.sigma-pillar-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.sigma-pillar-grid > li {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  background: var(--white);
}

.sigma-pillar-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  object-fit: contain;
  padding: 4px;
}

.sigma-pillar-role {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.sigma-pillar-grid h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.sigma-pillar-grid p:last-child {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

.sigma-equation-note {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  max-width: 48rem;
  font-size: 0.975rem;
  line-height: 1.95;
  color: var(--ink-soft);
}

.sigma-equation-note svg {
  width: 20px;
  height: 20px;
  flex: none;
  margin-top: 0.35rem;
  color: var(--orange-dark);
}

.sigma-equation-note strong {
  color: var(--ink);
  font-weight: 600;
}

.sigma-ai-tools {
  position: relative;
  display: grid;
  gap: 0.65rem;
}

.sigma-mcp-map {
  --sigma-mcp-gap: clamp(2.5rem, 5vw, 4rem);
  position: relative;
  display: grid;
  grid-template-columns: minmax(7.5rem, 0.8fr) minmax(9.5rem, 1.2fr);
  gap: var(--sigma-mcp-gap);
  align-items: center;
}

.sigma-mcp-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.sigma-mcp-lines path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.42);
  stroke-width: 0.28;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
}

.sigma-mcp-hub {
  position: relative;
  display: grid;
  justify-self: end;
  justify-items: center;
  place-items: center;
  width: 58px;
  aspect-ratio: 1;
  z-index: 1;
}

.sigma-mcp-hub .sigma-app-mark {
  width: 58px;
  height: 58px;
  border: 1px solid rgba(4, 16, 21, 0.16);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}

.sigma-ai-tools > li {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
  min-width: 0;
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.055);
  color: #fff;
  font-size: clamp(0.75rem, 1.5vw, 0.875rem);
  font-weight: 600;
  text-align: left;
  z-index: 1;
}

.sigma-ai-tool-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: #fff;
  color: var(--void);
}

.sigma-ai-tool-icon svg,
.sigma-ai-tool-icon img {
  width: 21px;
  height: 21px;
  object-fit: contain;
}

@media (max-width: 640px) {
  .sigma-pillar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  
  }

  /* 狭い画面でも横並び維持。軌道だけ縮める */

  .sigma-equation-row {
    gap: 0.85rem;
    align-items: center;
  
  }

  .sigma-equation-copy {
    max-width: none;
    flex: 1 1 auto;
  
  }

  .sigma-equation-orbit-slot {
    width: min(42vw, 11.5rem);
  
  }

  .sigma-orbit,
  .sigma-orbit-section {
    --orbit-r: clamp(3.6rem, 18vw, 5.25rem);
    --sat-size: clamp(2.75rem, 14vw, 3.75rem);
    --icon-size: clamp(1.5rem, 8vw, 2rem);
    --core-size: 1.75rem;
    width: min(100%, calc(var(--orbit-r) * 2 + var(--sat-size)));
  
  }

  .sigma-orbit-core-mark {
    font-size: 1.05rem;
  
  }

  .sigma-orbit-sat-name {
    font-size: 0.5625rem;
  
  }

  .sigma-orbit-sat-role {
    font-size: 0.5rem;
    letter-spacing: 0.08em;
  
  }

}

@media (max-width: 900px) and (min-width: 641px) {
  .sigma-pillar-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  
  }

  .sigma-equation-orbit-slot {
    width: min(100%, 14rem);
  
  }

  .sigma-orbit,
  .sigma-orbit-section {
    --orbit-r: clamp(5.5rem, 16vw, 6.75rem);
    --sat-size: 4.5rem;
    --icon-size: 2.35rem;
  
  }

}

@media (max-width: 520px) {
  .sigma-pillar-grid {
    grid-template-columns: minmax(0, 1fr);
  
  }

  .sigma-equation-title-text {
    font-size: clamp(1.25rem, 5vw, 1.65rem);
  
  }

  .sigma-equation-orbit-slot {
    width: min(40vw, 9.5rem);
  
  }

  .sigma-orbit-sat-name {
    font-size: 0.5rem;
  
  }

  .sigma-orbit-sat-role {
    display: none;
  
  }

}