.system-page .site-header { grid-template-columns: 1fr auto 1fr; }
.system-page .reveal { opacity: 1; transform: none; transition: none; }
.system-hero { display: grid; grid-template-columns: 1.35fr .65fr; min-height: min(760px, calc(100vh - 70px)); border-bottom: 1px solid var(--ink); }
.system-hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(70px, 8vw, 130px) 6vw; }
.system-hero h1 { max-width: 1100px; font-size: clamp(74px, 10vw, 155px); }
.system-hero h1 em { color: var(--orange); }
.system-hero-copy > p:last-child { max-width: 720px; margin: 48px 0 0; color: var(--muted); font-size: clamp(19px, 2vw, 28px); line-height: 1.35; }
.system-thesis { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(35px, 5vw, 72px); border-left: 1px solid #151515; background: var(--acid); color: #151515; }
.system-thesis > span, .system-section legend, .component-label { font-size: 9px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.system-thesis strong { font-family: var(--font-display); font-size: clamp(42px, 5vw, 72px); font-weight: 600; letter-spacing: -.04em; line-height: .95; }
.system-thesis p { max-width: 360px; margin: 0; font-size: 14px; }
.system-section { padding: clamp(70px, 8vw, 120px) 3vw; border-bottom: 1px solid var(--ink); }
.system-section-head { display: grid; grid-template-columns: 1.35fr .65fr; gap: 50px; align-items: end; margin-bottom: 60px; }
.system-section-head h2, .system-close h2 { max-width: 1000px; margin: 0; font-family: var(--font-sans); font-size: clamp(48px, 6.4vw, 92px); font-weight: 720; letter-spacing: -.055em; line-height: .96; }
.system-section-head > p { max-width: 500px; margin: 0; color: var(--muted); font-size: 15px; }
.control-room { background: var(--white); }
.control-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.control-grid fieldset { min-width: 0; margin: 0; padding: 24px; border: 1px solid var(--ink); }
.control-grid legend { padding: 0 8px; }
.system-choice-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); }
.system-choice-grid button { display: flex; flex-direction: column; align-items: flex-start; min-height: 155px; padding: 18px; border: 0; border-right: 1px solid var(--ink); background: var(--paper); color: var(--ink); text-align: left; }
.system-choice-grid button:last-child { border-right: 0; }
.system-choice-grid button:hover, .system-choice-grid button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.system-choice-grid strong { margin-top: auto; font-size: 16px; }
.system-choice-grid small { margin-top: 6px; font-size: 10px; line-height: 1.35; }
.mode-chip { width: 42px; height: 42px; margin-bottom: 22px; border: 1px solid currentColor; border-radius: 50%; }
.mode-light { background: #f3f0e8; }
.mode-dark { background: #151613; }
.mode-system { background: linear-gradient(90deg, #f3f0e8 50%, #151613 50%); }
.type-choice-grid { grid-template-columns: 1fr; }
.type-choice-grid button { min-height: 116px; border-right: 0; border-bottom: 1px solid var(--ink); }
.type-choice-grid button:last-child { border-bottom: 0; }
.type-choice-grid button > span { font-size: 32px; line-height: 1; }
.pair-editorial { font-family: "Bodoni Moda", serif; }
.pair-sharp { font-family: "Instrument Serif", serif; }
.pair-human { font-family: "Fraunces", serif; }
.principles { background: var(--acid); color: #151515; }
.principles .kicker { color: #2457ff; }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid #151515; }
.principle-grid article { min-height: 330px; padding: 25px; border-right: 1px solid #151515; }
.principle-grid article:last-child { border-right: 0; }
.principle-grid span { font-family: var(--font-display); font-size: 30px; }
.principle-grid h3 { margin: 95px 0 18px; font-family: var(--font-sans); font-size: 29px; letter-spacing: -.035em; line-height: 1; }
.principle-grid p { margin: 0; font-size: 13px; }
.type-specimen { display: grid; grid-template-columns: 1.2fr .8fr; border: 1px solid var(--ink); }
.type-specimen > div { min-height: 500px; padding: clamp(30px, 5vw, 70px); }
.type-specimen > div + div { border-left: 1px solid var(--ink); }
.type-specimen > div > span { font-size: 9px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.type-display p { margin: 90px 0 0; font-family: var(--font-display); font-size: clamp(58px, 7vw, 105px); font-weight: 650; letter-spacing: -.06em; line-height: .78; }
.type-display em { color: var(--orange); }
.type-body { display: flex; flex-direction: column; justify-content: space-between; background: var(--white); }
.type-body h3 { margin: auto 0 24px; font-family: var(--font-sans); font-size: clamp(34px, 4vw, 54px); letter-spacing: -.04em; line-height: 1; }
.type-body p { max-width: 560px; margin: 0 0 40px; font-size: 18px; }
.type-body small { font-size: 9px; font-weight: 850; letter-spacing: .1em; }
.swatch-grid { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--ink); }
.swatch { display: flex; flex-direction: column; justify-content: flex-end; min-height: 310px; padding: 22px; border-right: 1px solid var(--ink); }
.swatch:last-child { border-right: 0; }
.swatch span { font-family: var(--font-display); font-size: 30px; font-weight: 600; }
.swatch small { font-size: 10px; }
.swatch-paper { background: var(--paper); color: var(--ink); }
.swatch-ink { background: var(--ink); color: var(--paper); }
.swatch-blue { background: var(--blue); color: #fffdf7; }
.swatch-orange { background: var(--orange); color: #151515; }
.swatch-acid { background: var(--acid); color: #151515; }
.voice-system { background: var(--ink); color: var(--paper); }
.voice-system .kicker { color: var(--acid); }
.voice-system .system-section-head > p { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.voice-rules { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--paper); }
.voice-rules article { min-height: 290px; padding: 28px; border-right: 1px solid var(--paper); border-bottom: 1px solid var(--paper); }
.voice-rules article:nth-child(even) { border-right: 0; }
.voice-rules article:nth-child(n+3) { border-bottom: 0; }
.voice-rules span { color: var(--acid); font-size: 9px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.voice-rules blockquote { max-width: 720px; margin: 55px 0 20px; font-family: var(--font-display); font-size: clamp(27px, 3vw, 42px); line-height: 1.05; }
.voice-rules p { max-width: 520px; margin: 0; color: color-mix(in srgb, var(--paper) 70%, transparent); font-size: 12px; }
.component-stage { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.component-block { min-height: 230px; padding: 26px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.component-block:nth-child(2) { border-right: 0; }
.component-block > div { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; margin-top: 70px; }
.system-badges span { padding: 9px 11px; border: 1px solid var(--ink); font-size: 9px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.system-proof-card { grid-column: 1 / -1; display: grid; grid-template-columns: .35fr 1fr 1fr auto; gap: 30px; align-items: center; min-height: 170px; padding: 32px; background: var(--acid); color: #151515; }
.system-proof-card > span { font-size: 9px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.system-proof-card strong { font-family: var(--font-display); font-size: 38px; line-height: 1; }
.system-proof-card p { margin: 0; font-size: 13px; }
.system-proof-card a { font-size: 11px; font-weight: 850; text-underline-offset: 5px; }
.system-close { padding: clamp(90px, 12vw, 180px) 3vw; background: var(--orange); color: #151515; }
.system-close .kicker { color: #151515; }
.system-close .button { margin-top: 50px; }
@media (max-width: 980px) {
  .system-page .site-header { grid-template-columns: auto 1fr auto; }
  .system-page .site-header nav { display: flex; gap: 18px; }
  .system-page .site-header nav a { font-size: 9px; }
  .system-hero, .system-section-head, .control-grid { grid-template-columns: 1fr; }
  .system-thesis { min-height: 480px; border-top: 1px solid #151515; border-left: 0; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .principle-grid article:nth-child(2) { border-right: 0; }
  .principle-grid article:nth-child(-n+2) { border-bottom: 1px solid #151515; }
  .swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .swatch { border-bottom: 1px solid var(--ink); }
  .swatch:nth-child(even) { border-right: 0; }
  .swatch:last-child { grid-column: 1 / -1; border-bottom: 0; }
}
@media (max-width: 680px) {
  .system-page .site-header nav { display: none; }
  .system-hero-copy { padding: 70px 20px; }
  .system-hero h1 { font-size: clamp(64px, 20vw, 92px); }
  .system-thesis { min-height: 410px; padding: 40px 20px; }
  .system-section { padding: 70px 20px; }
  .system-section-head { gap: 24px; margin-bottom: 38px; }
  .system-section-head h2, .system-close h2 { font-size: 49px; }
  .system-choice-grid { grid-template-columns: 1fr; }
  .system-choice-grid button { min-height: 110px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .system-choice-grid button:last-child { border-bottom: 0; }
  .mode-chip { margin-bottom: 18px; }
  .principle-grid, .type-specimen, .voice-rules, .component-stage { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 260px; border-right: 0; border-bottom: 1px solid #151515; }
  .principle-grid article:nth-child(2) { border-bottom: 1px solid #151515; }
  .principle-grid article:last-child { border-bottom: 0; }
  .principle-grid h3 { margin-top: 65px; }
  .type-specimen > div { min-height: 420px; padding: 34px 20px; }
  .type-specimen > div + div { border-top: 1px solid var(--ink); border-left: 0; }
  .type-display p { margin-top: 70px; }
  .swatch { min-height: 220px; }
  .voice-rules article { min-height: 270px; border-right: 0; border-bottom: 1px solid var(--paper); }
  .voice-rules article:nth-child(n+3) { border-bottom: 1px solid var(--paper); }
  .voice-rules article:last-child { border-bottom: 0; }
  .component-block { border-right: 0; }
  .system-proof-card { grid-column: auto; grid-template-columns: 1fr; gap: 18px; }
  .system-close { padding: 90px 20px; }
}