.arch-page{max-width:1100px;margin:0 auto;padding:0 24px}.arch-brand{padding-top:32px}.arch-logo{object-fit:contain;width:56px;height:56px}.arch-header{text-align:center;padding:40px 0 60px}.arch-header-label{font-family:var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:var(--sage);margin-bottom:16px;font-size:13px;font-weight:500}.arch-header h1{font-family:var(--font-display);color:var(--text);margin-bottom:16px;font-size:clamp(32px,5vw,48px);font-weight:300;line-height:1.15}.arch-header p{font-family:var(--font-body);color:var(--text-secondary);max-width:640px;margin:0 auto;font-size:17px;line-height:1.6}.arch-positioning{text-align:center;max-width:700px;margin:0 auto 60px}.arch-positioning p{font-family:var(--font-body);color:var(--text-secondary);font-size:15px;line-height:1.65}.arch-diagram{max-width:900px;margin:0 auto 80px;padding:0 0 0 56px;position:relative}.arch-boundary{border:2px solid var(--text);border-radius:var(--radius-lg);background:var(--bg);padding:32px 28px 28px;position:relative}.arch-boundary-label{background:var(--bg);font-family:var(--font-body);letter-spacing:.06em;text-transform:uppercase;color:var(--text);align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:500;display:flex;position:absolute;top:-13px;left:28px}.arch-boundary-label svg{width:14px;height:14px;stroke:var(--text);stroke-width:2px;fill:none}.arch-spine{z-index:2;flex-direction:column;align-items:center;width:56px;display:flex;position:absolute;top:0;bottom:0;left:0}.arch-spine-bar{background:linear-gradient(180deg,#7c8c721a 0%,var(--sage)8%,var(--sage)92%,#7c8c721a 100%);border-radius:2px;flex:1;width:4px;position:relative}.arch-spine-label{white-space:nowrap;font-family:var(--font-body);letter-spacing:.06em;text-transform:uppercase;color:var(--sage);background:var(--bg);padding:4px 10px;font-size:11px;font-weight:500;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(-90deg)}.arch-band{position:relative}.arch-band:before{content:"";background:var(--sage);opacity:.4;width:20px;height:2px;position:absolute;top:50%;left:-28px;transform:translateY(-1px)}.arch-bands{flex-direction:column;gap:12px;display:flex}.arch-band{border-radius:var(--radius-md);align-items:flex-start;gap:20px;padding:20px 24px;display:flex}.arch-band-number{font-family:var(--font-display);color:var(--text-tertiary);opacity:.5;flex-shrink:0;min-width:28px;font-size:28px;font-weight:300;line-height:1}.arch-band-body{flex:1;min-width:0;margin-right:120px}.arch-band-name{font-family:var(--font-body);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-size:11px;font-weight:500}.arch-band-items{flex-wrap:wrap;gap:8px;display:flex}.arch-chip{border-radius:var(--radius-full);font-family:var(--font-body);white-space:nowrap;align-items:center;gap:6px;padding:6px 14px;font-size:13px;font-weight:400;display:inline-flex}.arch-chip-sub{color:inherit;opacity:.6;margin-top:1px;font-size:10px;line-height:1.2;display:block}.arch-band--interfaces{background:#f0ede8}.arch-band--interfaces .arch-band-name{color:#8a7a68}.arch-band--interfaces .arch-chip{color:#5c5040;background:#ffffffb3;border:1px solid #8a7a6826}.arch-band--agents{background:#eef1ec}.arch-band--agents .arch-band-name{color:var(--sage)}.arch-band--agents .arch-chip{color:#4a5a42;background:#ffffffb3;border:1px solid #7c8c7226}.arch-band--execution{background:#edf0f4}.arch-band--execution .arch-band-name{color:#6a7a8a}.arch-band--execution .arch-chip{color:#3e4e5e;background:#ffffffb3;border:1px solid #6a7a8a26}.arch-band--capabilities{background:#f2ede8}.arch-band--capabilities .arch-band-name{color:#8a7060}.arch-band--capabilities .arch-chip{color:#5a4a3a;background:#ffffffb3;border:1px solid #8a706026}.arch-band--intelligence{background:#ecf0ec}.arch-band--intelligence .arch-band-name{color:#5a7a52}.arch-band--intelligence .arch-chip{color:#3a5a32;background:#ffffffb3;border:1px solid #5a7a5226}.arch-band-split{align-items:flex-start;gap:16px;display:flex}.arch-split-group{flex:1;min-width:0}.arch-split-label{font-family:var(--font-body);letter-spacing:.06em;text-transform:uppercase;color:var(--text-tertiary);margin-bottom:8px;font-size:10px;font-weight:500;display:block}.arch-split-divider{background:#5a7a5233;flex-shrink:0;align-self:stretch;width:1px}.arch-band--data{background:#e8ecf0;padding:24px}.arch-band--data .arch-band-name{color:#506070}.arch-band--data .arch-chip{color:#2e3e4e;background:#ffffffb3;border:1px solid #50607026;font-weight:500}.arch-tick-label{font-family:var(--font-body);letter-spacing:.04em;color:var(--sage);opacity:.6;white-space:nowrap;pointer-events:none;font-size:9px;font-weight:400;position:absolute;top:50%;right:24px;transform:translateY(-50%)}.arch-external{align-items:center;gap:16px;margin-top:20px;margin-left:56px;display:flex}.arch-external-line{flex-shrink:0;align-items:center;gap:0;display:flex}.arch-external-dash{border-top:2px dashed var(--text-tertiary);width:48px;height:0}.arch-external-arrow{font-family:var(--font-body);color:var(--text-tertiary);white-space:nowrap;padding:0 8px;font-size:11px}.arch-external-box{border:2px dashed var(--text-tertiary);border-radius:var(--radius-md);background:var(--bg);align-items:center;gap:10px;padding:14px 22px;display:inline-flex}.arch-external-box .arch-chip{color:var(--sage);background:#7c8c7214;border:1px solid #7c8c7233;padding:8px 18px;font-weight:500}.arch-external-note{font-family:var(--font-body);color:var(--text-tertiary);font-size:12px;font-style:italic}.arch-narrative{max-width:700px;margin:0 auto 80px}.arch-narrative h2{font-family:var(--font-display);color:var(--text);text-align:center;margin-bottom:32px;font-size:clamp(24px,4vw,36px);font-weight:300;line-height:1.2}.arch-layer{margin-bottom:28px}.arch-layer-heading{font-family:var(--font-body);color:var(--text);margin-bottom:6px;font-size:14px;font-weight:500}.arch-layer p{font-family:var(--font-body);color:var(--text-secondary);font-size:15px;line-height:1.65}.arch-principles{margin-bottom:40px}.arch-maturity-ref{font-family:var(--font-body);color:var(--text-tertiary);border-top:1px solid var(--border);margin-top:32px;padding-top:20px;font-size:13px;font-style:italic;line-height:1.6}.arch-back{font-family:var(--font-body);color:var(--text-tertiary);align-items:center;gap:6px;margin-bottom:40px;font-size:14px;text-decoration:none;transition:color .2s;display:inline-flex}.arch-back:hover{color:var(--sage)}.arch-footer{text-align:center;border-top:1px solid var(--border);margin-top:40px;padding:40px 0}.arch-footer p{font-family:var(--font-body);color:var(--text-tertiary);font-size:14px}@media (max-width:640px){.arch-diagram{padding-left:40px}.arch-spine{width:40px}.arch-band:before{width:14px;left:-20px}.arch-band{gap:12px;padding:14px 16px}.arch-band-number{min-width:22px;font-size:22px}.arch-band-items{gap:6px}.arch-chip{padding:5px 10px;font-size:12px}.arch-chip-sub,.arch-tick-label{display:none}.arch-band-body{margin-right:0}.arch-band-split{flex-direction:column;gap:10px}.arch-split-divider{align-self:auto;width:100%;height:1px}.arch-boundary{padding:24px 16px 20px}.arch-external{flex-wrap:wrap;gap:10px;margin-left:40px}.arch-external-dash{width:24px}.arch-spine-label{font-size:9px}}