.ai-hero { padding: 72px 0 68px; background: #f0f4ef; border-bottom: 1px solid var(--line); }
.ai-hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 70px; align-items: center; }
.ai-hero h1 { font-size: clamp(3rem, 5.4vw, 4.75rem); letter-spacing: -.035em; }
.ai-hero h1 em { color: var(--green); font-weight: 400; }
.ai-intro { max-width: 570px; margin-top: 26px; color: var(--muted); font-size: 1.12rem; }
.button-green { background: var(--green); color: white; cursor: pointer; }
.button-green:hover { background: #123e30; }
.button-outline { border-color: var(--line); background: transparent; color: var(--green); cursor: pointer; }
.formula-board { background: #163b30; color: #edf5ed; padding: 36px; border-radius: 8px; }
.board-top { display: flex; justify-content: space-between; gap: 16px; font-size: .75rem; color: #bfd2c4; }
.board-title { font: 2rem/1.25 var(--serif); margin-top: 30px; }
.board-formula { font-size: 1.3rem; margin-block: 18px 30px; }
.field-bars { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; border-bottom: 1px solid #799788; padding-bottom: 16px; }
.field-bars > div { display: flex; flex-direction: column; gap: 10px; text-align: center; align-items: center; font-size: .875rem; }
.field-bars .bar-track { height: 95px; width: 100%; background: #ffffff09; display: flex; align-items: end; }
.field-bars .bar { width: 100%; height: var(--level); background: var(--field-color); border-radius: 2px 2px 0 0; }
.board-foot { display: flex; justify-content: space-between; align-items: center; gap: 15px; margin-top: 18px; }
.board-foot strong { font: 2.3rem/1 var(--serif); }
.board-note { color: #bfd2c4; font-size: .8125rem; margin-top: 20px; }
.section-index { display: flex; flex-wrap: wrap; gap: 10px 30px; padding-block: 21px; font-size: .875rem; }
.section-index a { text-decoration: none; color: var(--green); }
.section-index a:hover { text-decoration: underline; }
.ai-section { border-top: 1px solid var(--line); }
.ai-section .principle-grid { margin-top: 36px; }
.ai-section .principle h3 { min-height: auto; margin-bottom: 12px; }
.ai-section .principle p + p { margin-top: 10px; }
.field-example { border-left: 2px solid var(--line); padding-left: 12px; margin-top: 14px; }
.soft-section { background: var(--soft); }
.narrow-copy { max-width: 720px; color: var(--muted); }
.calc-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; margin-top: 36px; align-items: start; }
.calculator { background: white; border: 1px solid var(--line); border-radius: 8px; padding: 30px; }
.range-row { margin-bottom: 23px; }
.range-top { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 7px; }
.range-top label { font-weight: 600; font-size: .9375rem; }
.range-top output { font-variant-numeric: tabular-nums; color: var(--green); }
input[type="range"] { width: 100%; accent-color: var(--green); cursor: pointer; min-height: 25px; margin: 0; }
input:focus-visible, summary:focus-visible { outline: 3px solid #d19838; outline-offset: 5px; }
.preset-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.preset-buttons button { font-size: .8125rem; border: 1px solid var(--line); padding: 8px 12px; background: white; border-radius: 4px; cursor: pointer; color: var(--green); }
.preset-buttons button:hover { background: var(--soft); }
.calc-results { border-top: 1px solid var(--line); padding-top: 22px; margin-top: 10px; }
.result-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.result-label { display: block; font-size: .8125rem; color: var(--muted); }
.result-value { display: block; font: 3rem/1.3 var(--serif); color: var(--green); font-variant-numeric: tabular-nums; }
.calc-explanation { font-size: .875rem; color: var(--muted); margin-top: 16px; }
.equation { font: 1.12rem/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; background: #edf2ed; padding: 18px 20px; border: 1px solid var(--line); border-radius: 5px; overflow-wrap: anywhere; margin-block: 20px; }
.math-display { overflow-x: auto; padding: 22px 4px; }
math { font-size: 1.45rem; }
.formula-board math { font-size: 1.28rem; }
.formula-rules { padding-left: 22px; color: var(--muted); }
.formula-rules li + li { margin-top: 13px; }
.small-note { font-size: .875rem; color: var(--muted); }
.small-note + p { margin-top: 16px; }
.callout { border-left: 3px solid var(--green); padding: 18px 22px; background: #edf2ed; margin-top: 26px; }
.callout p { color: var(--muted); margin-top: 8px; }
.formula-list { margin-top: 30px; border-bottom: 1px solid var(--line); }
.formula-list details { border-top: 1px solid var(--line); }
summary { cursor: pointer; padding: 22px 0; font-weight: 600; }
summary span { color: var(--muted); font-weight: 400; }
.detail-body { padding: 0 0 27px 20px; max-width: 900px; }
.detail-body > p { color: var(--muted); margin-top: 14px; }
.detail-body .equation { margin-top: 0; }
.label { display: inline-block; font-size: .75rem; font-weight: 600; color: var(--green); background: #e9f0e9; border: 1px solid #d2dfd5; border-radius: 20px; padding: 4px 11px; }
.symbolic-section { background: #163b30; color: #eff5ef; }
.symbolic-section .eyebrow, .symbolic-section .section-heading > p { color: #c3d6c9; }
.symbolic-section h2 em { color: #d8e9d6; }
.symbolic-section .label { color: #e0eddd; border-color: #607b6d; background: transparent; }
.symbolic-equation { border: 1px solid #799788; border-radius: 6px; text-align: center; margin: 30px 0 18px; padding: 28px 20px; overflow-x: auto; }
.symbolic-equation math { font-size: clamp(1.15rem, 2.5vw, 1.8rem); }
.symbolic-section .small-note { color: #c3d6c9; }
.symbolic-section a { color: #eff5ef; }
.symbolic-section .equation { background: #ffffff07; color: #eff5ef; border-color: #799788; font-size: .8125rem; }
.symbolic-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 34px; }
.symbolic-grid h3 { font-family: var(--serif); font-size: 1.65rem; font-weight: 400; margin-bottom: 20px; }
.symbolic-grid dl { margin: 0; }
.symbolic-grid dt { font-weight: 600; color: #eff5ef; margin-top: 17px; }
.symbolic-grid dd { margin: 4px 0 0; color: #c3d6c9; }
.symbolic-grid p, .symbolic-grid li { color: #c3d6c9; }
.symbolic-grid p + p { margin-top: 20px; }
.symbolic-grid ol { padding-left: 24px; }
.symbolic-grid li { padding-left: 5px; margin-bottom: 12px; }
.symbolic-boundary { border-top: 1px solid #607b6d; padding-top: 24px; margin-top: 32px; }
.paradox-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 30px; }
.paradox-card { border-top: 2px solid var(--green); padding-top: 22px; }
.paradox-card .example-number { color: var(--green); font-size: .8125rem; display: block; margin-bottom: 14px; }
.paradox-card h3 { font: 1.65rem/1.25 var(--serif); }
.paradox-card p { color: var(--muted); margin-top: 18px; }
.paradox-card summary { font-size: .875rem; color: var(--green); padding-bottom: 0; }
.paradox-card .verdict { color: var(--ink); }
.protocol-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin: 32px 0; }
.protocol-step { border-top: 1px solid var(--line); padding-top: 20px; }
.protocol-step span { color: var(--green); font: 1.7rem/1 var(--serif); }
.protocol-step h3 { margin: 18px 0 10px; font-size: 1rem; }
.protocol-step p { color: var(--muted); font-size: .9375rem; }
.prompt-box { background: #172c26; color: #e7f0e9; border-radius: 6px; padding: 26px; }
.prompt-box pre { font: .875rem/1.85 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; margin: 0; max-height: 470px; overflow-y: auto; }
.prompt-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 18px; }
.copy-status { color: var(--green); font-size: .875rem; min-height: 1.7em; margin-top: 9px; }
.source-list { padding-left: 22px; color: var(--muted); }
.source-list li + li { margin-top: 16px; }
.source-list a { color: var(--green); }
.source-meta { display: block; font-size: .875rem; }
.home-ai-link { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 24px; }
@media (max-width: 980px) {
  .ai-hero-grid { gap: 35px; }
  .formula-board { padding: 26px; }
  .calc-layout { gap: 30px; }
  .protocol-steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .ai-hero { padding-block: 42px; }
  .ai-hero-grid, .calc-layout, .symbolic-grid, .paradox-grid { grid-template-columns: 1fr; }
  .ai-hero-grid { gap: 32px; }
  .ai-hero h1 { font-size: 3.15rem; }
  .ai-intro { font-size: 1rem; }
  .formula-board { padding: 25px; }
  .board-title { margin-top: 22px; }
  .field-bars .bar-track { height: 65px; }
  .section-index { gap: 8px 22px; font-size: .8125rem; }
  .calculator { padding: 22px; }
  .symbolic-grid { gap: 30px; }
  .symbolic-equation { padding: 24px 12px; }
  .symbolic-equation math { font-size: clamp(.8rem, 4vw, 1.4rem); }
  .math-display math { font-size: 1.2rem; }
  .detail-body { padding-left: 0; }
  .equation { padding: 15px; font-size: .9375rem; }
  .prompt-box { padding: 20px; }
  .prompt-actions { align-items: start; flex-direction: column; }
}
@media (max-width: 380px) {
  .ai-hero h1 { font-size: 2.7rem; }
  .protocol-steps { grid-template-columns: 1fr; }
}
@media print {
  .ai-hero, .symbolic-section { color: black; background: white; }
  .symbolic-section p, .symbolic-section dd, .symbolic-section li { color: black; }
  .ai-hero-grid, .calc-layout { display: block; }
  .formula-board, .section-index, .preset-buttons, .prompt-actions, .copy-status { display: none; }
  .prompt-box { color: black; background: white; }
  .prompt-box pre { max-height: none; }
  .section { break-inside: auto; }
}