/* ============ Forma — guide pages ============ */
:root{
  --ink:#1A1C20; --ink-2:#3C3F47; --muted:#7C7F88; --faint:#A8A49A;
  --paper:#F6F4EF; --paper-2:#ECEAE4; --canvas:#EAE7E0; --white:#FFFFFF;
  --line:#E5E2DA; --line-2:#EEECE6; --line-strong:#DCD8CE;
  --blue:#4C6FFF; --blue-ink:#3554E6; --wash:#F0F3FF; --wash-line:#BAC8FF;
  --green:#2F9E44; --green-bg:#EFF8ED; --green-line:#BCDEB4; --green-ink:#2C5C2D;
  --red:#D5403B; --red-bg:#F8D5D4; --red-line:#F1AAA9; --red-ink:#A4201D;
  --amber:#E6A817; --amber-bg:#FFF2CF; --amber-line:#FCE39E; --amber-ink:#843215;
  --purple:#7A16D2; --purple-bg:#F6F0FC; --purple-line:#C9A2EC; --purple-ink:#3D0A6A;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  --r:12px; --r-lg:18px; --r-xl:24px; --maxw:1080px;
  --shadow-sm:0 1px 2px rgba(26,28,32,.05);
  --shadow:0 1px 2px rgba(26,28,32,.04),0 8px 22px -10px rgba(26,28,32,.16);
  --shadow-lg:0 2px 6px rgba(26,28,32,.06),0 30px 60px -22px rgba(26,28,32,.30);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink-2);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.gd-wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.eyebrow{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.eyebrow .dot{color:var(--blue)}
b,strong{color:var(--ink);font-weight:600}
em{font-style:normal;color:var(--blue-ink)}

/* nav */
.gd-nav{position:sticky;top:0;z-index:50;background:rgba(246,244,239,.85);backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.gd-nav-in{max-width:1180px;margin:0 auto;padding:14px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.gd-nav .mark img{height:24px;display:block}
.gd-nav-links{display:flex;align-items:center;gap:22px}
.gd-nav-links a{font-size:13.5px;font-weight:500;color:var(--muted)}
.gd-nav-links a:hover{color:var(--ink)}
.gd-nav .cta{display:inline-flex;align-items:center;height:36px;padding:0 15px;border-radius:10px;background:var(--ink);color:var(--paper);font-size:13.5px;font-weight:600}
@media(max-width:760px){.gd-nav-links{display:none}}

/* hero */
.gd-hero{position:relative;text-align:center;padding:84px 0 56px;overflow:hidden}
.gd-hero-bg{position:absolute;top:-40px;right:-40px;width:min(620px,60vw);height:560px;z-index:0;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M17,12.5v9M12.5,17h9' stroke='%231A1C20' stroke-opacity='0.14' stroke-width='1'/%3E%3C/svg%3E");
  background-size:34px 34px;-webkit-mask-image:radial-gradient(110% 90% at 100% 6%,#000 22%,transparent 68%);mask-image:radial-gradient(110% 90% at 100% 6%,#000 22%,transparent 68%)}
.gd-hero .gd-wrap{position:relative;z-index:1}
.gd-kick{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-ink);background:var(--wash);border:1px solid var(--wash-line);border-radius:999px;padding:6px 13px}
.gd-hero h1{font-family:var(--sans);font-weight:800;font-size:clamp(34px,5.6vw,60px);letter-spacing:-.03em;line-height:1.03;color:var(--ink);max-width:18ch;margin:22px auto 0}
.gd-hero .sub{margin:20px auto 0;max-width:62ch;font-size:clamp(16px,2vw,19px);color:var(--muted);line-height:1.6}
.gd-hero .meta{margin-top:28px;display:flex;gap:26px;justify-content:center;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.gd-hero .meta b{color:var(--ink);font-weight:700}

/* table of contents */
.gd-toc{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;max-width:var(--maxw);margin:0 auto;padding:0 26px}
.gd-toc a{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px 15px;transition:transform .15s,border-color .15s,box-shadow .15s}
.gd-toc a:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.gd-toc .n{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--blue)}
.gd-toc .t{display:block;margin-top:8px;font-size:13.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.2}
@media(max-width:900px){.gd-toc{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.gd-toc{grid-template-columns:1fr}}

/* chapter */
.gd-chap{padding:72px 0 8px;scroll-margin-top:70px}
.gd-chap-head{max-width:var(--maxw);margin:0 auto;padding:0 26px;border-top:1px solid var(--line);padding-top:44px}
.gd-chap-n{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--blue);letter-spacing:.08em}
.gd-chap-head h2{font-family:var(--sans);font-weight:800;font-size:clamp(28px,4vw,42px);letter-spacing:-.02em;line-height:1.05;color:var(--ink);margin:12px 0 12px;max-width:20ch}
.gd-chap-head .intro{font-size:17px;color:var(--ink-2);line-height:1.6;max-width:70ch}

/* generic content block */
.gd-block{max-width:var(--maxw);margin:0 auto;padding:40px 26px 0}
.gd-block h3{font-family:var(--sans);font-weight:700;font-size:21px;letter-spacing:-.01em;color:var(--ink);margin-bottom:8px}
.gd-block .k{font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.gd-block p{font-size:15.5px;color:var(--ink-2);line-height:1.62;max-width:72ch;margin-bottom:12px}
.gd-block p .mut{color:var(--muted)}

/* cards grid */
.gd-grid{display:grid;gap:14px;margin-top:6px}
.gd-grid.c2{grid-template-columns:repeat(2,1fr)}
.gd-grid.c3{grid-template-columns:repeat(3,1fr)}
.gd-grid.c4{grid-template-columns:repeat(4,1fr)}
.gd-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow-sm)}
.gd-card .ic{width:36px;height:36px;border-radius:10px;background:var(--wash);border:1px solid var(--wash-line);color:var(--blue-ink);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;margin-bottom:14px}
.gd-card h4{font-family:var(--sans);font-weight:700;font-size:15.5px;color:var(--ink);letter-spacing:-.01em;margin-bottom:6px}
.gd-card p{font-size:13.5px;color:var(--muted);line-height:1.5;margin:0;max-width:none}
.gd-card .tag{font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--blue)}
@media(max-width:820px){.gd-grid.c3,.gd-grid.c4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.gd-grid.c2,.gd-grid.c3,.gd-grid.c4{grid-template-columns:1fr}}

/* pull quote */
.gd-quote{max-width:var(--maxw);margin:44px auto 0;padding:0 26px}
.gd-quote .q{background:var(--ink);color:#fff;border-radius:var(--r-xl);padding:40px 44px;font-family:var(--sans);font-weight:700;font-size:clamp(21px,3vw,30px);letter-spacing:-.02em;line-height:1.25}
.gd-quote .q em{color:#9db0ff}
.gd-quote .by{margin-top:12px;font-size:13px;color:var(--muted)}

/* do / dont */
.gd-dd{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.gd-do,.gd-dont{border-radius:16px;padding:20px 22px}
.gd-do{background:var(--green-bg);border:1px solid var(--green-line)}
.gd-dont{background:var(--red-bg);border:1px solid var(--red-line)}
.gd-do h4,.gd-dont h4{font-size:12px;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px}
.gd-do h4{color:var(--green-ink)}.gd-dont h4{color:var(--red-ink)}
.gd-do ul,.gd-dont ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.gd-do li,.gd-dont li{display:flex;gap:10px;font-size:14px;line-height:1.45}
.gd-do li{color:var(--green-ink)}.gd-dont li{color:var(--red-ink)}
.gd-do li::before{content:'✓';font-weight:800;color:var(--green)}
.gd-dont li::before{content:'✕';font-weight:800;color:var(--red)}
@media(max-width:640px){.gd-dd{grid-template-columns:1fr}}

/* checklist card */
.gd-check{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:22px 24px;box-shadow:var(--shadow-sm)}
.gd-check h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px}
.gd-check ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.gd-check li{display:flex;gap:11px;font-size:14px;color:var(--ink-2);line-height:1.45}
.gd-check li .num{flex:none;width:22px;height:22px;border-radius:7px;background:var(--wash);border:1px solid var(--wash-line);color:var(--blue-ink);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;font-family:var(--mono)}
.gd-check li b{color:var(--ink)}

/* 3-panel arc / journey */
.gd-arc{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:6px;border:1px solid var(--line-strong);border-radius:16px;overflow:hidden;background:var(--white)}
.gd-arc .step{padding:24px 22px;position:relative;border-right:1px solid var(--line)}
.gd-arc .step:last-child{border-right:none}
.gd-arc .step .ph{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--blue)}
.gd-arc .step h4{font-size:17px;font-weight:800;color:var(--ink);margin:8px 0 4px;letter-spacing:-.01em}
.gd-arc .step .word{font-size:12px;font-weight:700;color:var(--blue-ink);text-transform:uppercase;letter-spacing:.06em}
.gd-arc .step p{font-size:13px;color:var(--muted);line-height:1.5;margin-top:8px}
@media(max-width:720px){.gd-arc{grid-template-columns:1fr}.gd-arc .step{border-right:none;border-bottom:1px solid var(--line)}.gd-arc .step:last-child{border-bottom:none}}

/* SCQ / So-what staircase */
.gd-stair{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.gd-stair .row{display:flex;align-items:center;gap:16px}
.gd-stair .box{flex:1;background:var(--white);border:1px solid var(--line-strong);border-radius:14px;padding:16px 20px}
.gd-stair .box .lab{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.gd-stair .box p{font-size:14.5px;color:var(--ink);margin:5px 0 0;max-width:none;line-height:1.45}
.gd-stair .react{width:170px;flex:none;font-size:13px;font-weight:600;color:var(--blue-ink)}
.gd-stair .r1{margin-left:0}.gd-stair .r2{margin-left:40px}.gd-stair .r3{margin-left:80px}
@media(max-width:720px){.gd-stair .react{display:none}.gd-stair .r2,.gd-stair .r3{margin-left:0}}

/* pyramid */
.gd-pyr{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:6px}
.gd-pyr .tier{background:var(--white);border:1px solid var(--line-strong);border-radius:12px;padding:14px 20px;text-align:center;box-shadow:var(--shadow-sm)}
.gd-pyr .t1{width:46%;background:var(--ink);border-color:var(--ink);color:#fff}
.gd-pyr .t1 b{color:#fff}
.gd-pyr .t2-wrap{display:flex;gap:10px;width:82%}
.gd-pyr .t2{flex:1;background:var(--wash);border-color:var(--wash-line)}
.gd-pyr .t3-wrap{display:flex;gap:10px;width:100%}
.gd-pyr .t3{flex:1;font-size:12px;color:var(--muted);padding:11px 12px}
.gd-pyr .lab{font-family:var(--mono);font-size:9.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:3px}
.gd-pyr .t1 .lab{color:#9db0ff}
.gd-pyr .arrow{font-size:12px;color:var(--faint)}
@media(max-width:640px){.gd-pyr .t1,.gd-pyr .t2-wrap{width:100%}.gd-pyr .t2-wrap,.gd-pyr .t3-wrap{flex-direction:column}}

/* process ribbon */
.gd-ribbon{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.gd-ribbon .step{flex:1;min-width:120px;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:14px 13px;position:relative}
.gd-ribbon .step.big{flex:2.4;min-width:200px;border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.gd-ribbon .step .n{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--blue)}
.gd-ribbon .step h4{font-size:13.5px;font-weight:700;color:var(--ink);margin:6px 0 8px;line-height:1.2}
.gd-ribbon .step .bar{height:5px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.gd-ribbon .step .bar i{display:block;height:100%;background:var(--blue)}
.gd-ribbon .step .pct{font-size:10.5px;color:var(--muted);margin-top:5px;font-family:var(--mono)}

/* 2x2 matrix */
.gd-2x2{position:relative;margin-top:6px;display:grid;grid-template-columns:26px 1fr 1fr;grid-template-rows:auto 1fr 1fr;gap:8px;max-width:640px}
.gd-2x2 .yl{grid-row:2/4;grid-column:1;writing-mode:vertical-rl;transform:rotate(180deg);text-align:center;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);align-self:center}
.gd-2x2 .xl{grid-row:4;grid-column:2/4;text-align:center;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.gd-2x2 .cell{border-radius:14px;padding:16px;min-height:96px;border:1px solid var(--line-strong)}
.gd-2x2 .cell .lab{font-size:12px;font-weight:700;color:var(--ink);display:block}
.gd-2x2 .cell .act{font-size:12px;color:var(--muted);margin-top:4px;display:block;line-height:1.4}
.gd-2x2 .hi{background:var(--wash);border-color:var(--wash-line)}
.gd-2x2 .mid{background:var(--white)}
.gd-2x2 .lo{background:var(--paper)}
.gd-2x2 .c-tl{grid-row:2;grid-column:2}.gd-2x2 .c-tr{grid-row:2;grid-column:3}
.gd-2x2 .c-bl{grid-row:3;grid-column:2}.gd-2x2 .c-br{grid-row:3;grid-column:3}
.gd-2x2 .top{grid-row:1;grid-column:2/4;display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;padding:0 4px}

/* impact–feasibility matrix — impact axis (high/low rotated) on the left, harder/easier at the bottom */
.gd-if{display:grid;grid-template-columns:20px 20px 1fr 1fr;grid-template-rows:1fr 1fr auto auto;gap:8px;max-width:640px;margin-top:6px}
.gd-if .axis-title{writing-mode:vertical-rl;transform:rotate(180deg);grid-row:1/3;grid-column:1;text-align:center;align-self:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);font-weight:600}
.gd-if .axis{writing-mode:vertical-rl;transform:rotate(180deg);grid-column:2;text-align:center;align-self:center;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.gd-if .mk-hi{grid-row:1}.gd-if .mk-lo{grid-row:2}
.gd-if .cell{border-radius:14px;padding:16px;min-height:96px;border:1px solid var(--line-strong)}
.gd-if .cell .lab{font-size:12px;font-weight:700;color:var(--ink);display:block}
.gd-if .cell .act{font-size:12px;color:var(--muted);margin-top:4px;display:block;line-height:1.4}
.gd-if .hi{background:var(--wash);border-color:var(--wash-line)}
.gd-if .mid{background:var(--white)}
.gd-if .lo{background:var(--paper)}
.gd-if .c-tl{grid-row:1;grid-column:3}.gd-if .c-tr{grid-row:1;grid-column:4}
.gd-if .c-bl{grid-row:2;grid-column:3}.gd-if .c-br{grid-row:2;grid-column:4}
.gd-if .xmk{grid-row:3;text-align:center;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding-top:2px}
.gd-if .xmk-l{grid-column:3}.gd-if .xmk-r{grid-column:4}
.gd-if .x-title{grid-row:4;grid-column:3/5;text-align:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);font-weight:600}

/* ladder (tactics) */
.gd-ladder{margin-top:6px;border-radius:16px;overflow:hidden;border:1px solid var(--line-strong)}
.gd-ladder .band{padding:8px 18px;font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.gd-ladder .rung{display:flex;gap:14px;padding:14px 18px;border-top:1px solid var(--line-2);background:var(--white);align-items:baseline}
.gd-ladder .rung .nm{flex:none;width:160px;font-weight:700;color:var(--ink);font-size:14px}
.gd-ladder .rung .ds{font-size:13.5px;color:var(--muted);line-height:1.45}
.gd-ladder .b-good{background:var(--green-bg);color:var(--green-ink)}
.gd-ladder .b-neutral{background:var(--paper-2);color:var(--muted)}
.gd-ladder .b-bad{background:var(--red-bg);color:var(--red-ink)}
@media(max-width:640px){.gd-ladder .rung{flex-direction:column;gap:3px}.gd-ladder .rung .nm{width:auto}}

/* split compare */
.gd-split{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px}
.gd-split .side{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:20px 22px}
.gd-split .side.bad{background:var(--paper);border-style:dashed}
.gd-split .side .h{font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.gd-split .side.good .h{color:var(--green-ink)}
.gd-split .side p{font-size:14px;margin:0;max-width:none}
@media(max-width:640px){.gd-split{grid-template-columns:1fr}}

/* table */
.gd-tablewrap{margin-top:6px;overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.gd-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
.gd-table th,.gd-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top}
.gd-table tr:last-child td{border-bottom:none}
.gd-table th{background:var(--paper-2);font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:600}
.gd-table td:first-child{font-weight:600;color:var(--ink);width:42%}

/* triangle (persuasion) */
.gd-tri{display:flex;justify-content:center;margin-top:6px}
.gd-tri svg{width:100%;max-width:420px;height:auto}

/* callout */
.gd-note{max-width:var(--maxw);margin:34px auto 0;padding:0 26px}
.gd-note .box{border-radius:16px;padding:18px 22px;font-size:14.5px;line-height:1.55;display:flex;gap:13px;align-items:flex-start}
.gd-note .box.blue{background:var(--wash);border:1px solid var(--wash-line);color:var(--blue-ink)}
.gd-note .box.amber{background:var(--amber-bg);border:1px solid var(--amber-line);color:var(--amber-ink)}
.gd-note .box .ic{font-size:18px;flex:none}
.gd-note .box b{color:inherit}

/* running example thread */
.gd-eg{max-width:var(--maxw);margin:20px auto 0;padding:0 26px}
.gd-eg .box{background:var(--paper-2);border:1px dashed var(--line-strong);border-radius:14px;padding:16px 20px;font-size:14px;color:var(--ink-2);line-height:1.5}
.gd-eg .box .lab{font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);display:block;margin-bottom:6px}
.gd-eg .box b{color:var(--ink)}

/* closing CTA */
.gd-cta{max-width:var(--maxw);margin:80px auto 0;padding:0 26px}
.gd-cta .box{background:linear-gradient(160deg,#fff,var(--wash));border:1px solid var(--wash-line);border-radius:var(--r-xl);padding:48px 40px;text-align:center;box-shadow:var(--shadow-sm)}
.gd-cta h2{font-family:var(--sans);font-weight:800;font-size:clamp(26px,3.6vw,38px);letter-spacing:-.02em;color:var(--ink)}
.gd-cta p{margin:14px auto 24px;max-width:52ch;font-size:16px;color:var(--ink-2)}
.gd-cta .btn{display:inline-flex;align-items:center;gap:8px;height:50px;padding:0 26px;border-radius:12px;background:var(--blue);color:#fff;font-weight:600;font-size:15px;box-shadow:0 8px 20px -8px rgba(76,111,255,.55)}

/* footer */
.gd-foot{border-top:1px solid var(--line);margin-top:70px}
.gd-foot-in{max-width:1180px;margin:0 auto;padding:26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
.gd-foot-in a{color:var(--muted);font-weight:500}
.gd-foot-in a:hover{color:var(--ink)}
.gd-foot-links{display:flex;gap:18px}