/* sd-v2.css — SD Tech Solutions, the consulting site (v0.2 "terminal", reworked 2026-10-17
   for the brand split: SDOT-BRAND-SPLIT-REPORT-2026-10-17 §2.8).
   Only pages listed in $v2Pages in /index.php load this file.
   Rules this file keeps (the acceptance checks run against them):
   - six integer font sizes only, root 16px: 12, 14, 17, 20, 28, 40. No clamp(), no vw, no
     fractional rem. Sizes step at the 768px breakpoint.
   - one radius, --r (3px), on buttons, inputs, cards, panes and tags; only status dots are round.
   - rules instead of shadows; no glow. The hero sits on a 32px grid.
   - weights 400 and 600 only.
   - colours only from the tokens in :root. No navy and no blue (those belong to the other brand).
   Dark, single theme: no light variant, no toggle. */

/* ---------------------------------------------------------------------------
   Fonts: IBM Plex Mono 500/600 + IBM Plex Sans 400/500/600, self-hosted woff2,
   Latin subset, from @fontsource/ibm-plex-mono@5.2.7 and @fontsource/ibm-plex-sans@5.2.8
   (SIL Open Font License 1.1, see /assets/fonts/IBM-Plex-OFL.txt). No third-party
   request at runtime. The unicode-range is fontsource's "latin" range, so glyphs
   outside it (the pane marks ✓ ● ○ →) come from the system font, as intended.
   --------------------------------------------------------------------------- */
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;
  src:url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:600;font-display:swap;
  src:url("/assets/fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:400;font-display:swap;
  src:url("/assets/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:500;font-display:swap;
  src:url("/assets/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:600;font-display:swap;
  src:url("/assets/fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* Fallback metrics, so the swap from the system font to Plex does not shift the layout.
   Numbers from @capsizecss/metrics@4.1.0: Plex Sans xWidthAvg 451/1000 vs Arial 913/2048
   -> size-adjust 101.17%; ascent 1025, descent 275 (per 1000) divided by that.
   Plex Mono advance 600/1000 vs Courier New 1229/2048 -> size-adjust 99.98%. */
@font-face{font-family:"IBM Plex Sans Fallback";src:local("Arial"),local("ArialMT");
  size-adjust:101.17%;ascent-override:101.32%;descent-override:27.18%;line-gap-override:0%}
@font-face{font-family:"IBM Plex Mono Fallback";src:local("Courier New"),local("CourierNewPSMT");
  size-adjust:99.98%;ascent-override:102.52%;descent-override:27.5%;line-gap-override:0%}

/* ---------------------------------------------------------------------------
   Tokens (report §2.8, from the SD Tech site kit v0.1 dark theme)
   --------------------------------------------------------------------------- */
:root{
  --bg:#0F1714; --panel:#152019; --panel-2:#1B2721; --grid:rgba(230,236,231,.05);
  --ink:#E6ECE7; --ink-2:#A9B8AE; --ink-3:#7C8C82;
  --green:#7FD1A0; --green-hi:#9FE3BF; --on-green:#0F1714;
  --line:#2A3730; --line-2:#1F2B25;
  --pane:#0A100D; --pane-line:#1C2822; --pane-ink:#D7E2DA; --pane-muted:#8A9A90;
  --amber:#E3B04B; --red:#F09A8C;
  --r:3px;
  --mono:"IBM Plex Mono","IBM Plex Mono Fallback",ui-monospace,Menlo,Consolas,monospace;
  --sans:"IBM Plex Sans","IBM Plex Sans Fallback","Segoe UI",Roboto,Arial,sans-serif;
  color-scheme:dark;
}
/* Contrast: --ink-3 is used only on --bg and --pane (never on a panel). */

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;font-size:16px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;font-weight:400;-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
h1,h2,h3,p,pre,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0}
a{color:var(--green);text-decoration:underline;text-underline-offset:3px}
a:hover{color:var(--green-hi)}
:focus-visible{outline:2px solid var(--green);outline-offset:2px}
b,strong{font-weight:600}
.wrap{max-width:1080px;margin:0 auto;padding-inline:16px}
.mono{font-family:var(--mono)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* headings: Plex Sans 600, line height 1.25; no heading ends in a colon */
h1{font-size:28px;line-height:1.25;font-weight:600;letter-spacing:-.01em;max-width:24ch}
h2{font-size:28px;line-height:1.25;font-weight:600;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.25;font-weight:600}
@media (min-width:768px){h1{font-size:40px}}

/* skip link: hidden until focused */
.skip{position:absolute;left:12px;top:-64px;z-index:30;background:var(--green);color:var(--on-green);font-family:var(--mono);font-size:14px;line-height:1.5;font-weight:600;padding:8px 12px;border-radius:var(--r);text-decoration:none}
.skip:focus{top:8px}

/* staging-only banner (rendered only where the staging vhost passes SD_STAGING=1) */
.v2note{background:var(--panel-2);border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--ink-2);padding:8px 16px;text-align:center}

/* ---------------------------------------------------------------------------
   The status bar (tmux style): [sd-tech] · tabs · check-up button.
   Phones: [sd-tech] · menu · check-up. Tabs show from 900px.
   --------------------------------------------------------------------------- */
.tbar{position:sticky;top:0;z-index:20;background:var(--pane);border-bottom:1px solid var(--line);font-family:var(--mono);font-size:14px;line-height:1.5}
.tbar .wrap{display:flex;align-items:stretch;height:36px;padding-inline:0}
.tbar a{color:var(--ink-2);text-decoration:none;display:flex;align-items:center;padding:0 12px;white-space:nowrap}
.tbar a:hover{color:var(--ink);background:var(--panel)}
.tbar a.brand{background:var(--green);color:var(--on-green);font-weight:600}
.tbar a.brand:hover{background:var(--green-hi);color:var(--on-green)}
.tbar .tabs{display:none}
.tbar .tabs a.on{color:var(--green)}
.tbar .tabs a.on::after{content:"*";margin-left:2px}
.tbar .sp{flex:1}
.tbar .st{display:none;align-items:center;padding:0 12px;color:var(--ink-3);white-space:nowrap}
.tbar .st i{font-style:normal;color:var(--green)}
.tbar a.cta{color:var(--green);border-left:1px solid var(--line)}
.tbar details.menu{display:flex}
.tbar details.menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;padding:0 12px;color:var(--ink-2);border-left:1px solid var(--line)}
.tbar details.menu summary::-webkit-details-marker{display:none}
.tbar details.menu[open] summary{color:var(--ink);background:var(--panel)}
.tbar details.menu .panel{position:absolute;left:0;right:0;top:36px;background:var(--pane);border-bottom:1px solid var(--line);display:flex;flex-direction:column;padding:8px 0}
.tbar details.menu .panel a{padding:8px 16px}
.tbar details.menu .panel a.on{color:var(--green)}
.tbar details.menu .panel a.on::after{content:"*";margin-left:2px}
@media (min-width:900px){
  .tbar .wrap{padding-inline:16px}
  .tbar .tabs{display:flex}
  .tbar details.menu{display:none}
}
@media (min-width:1100px){.tbar .st{display:flex}}

/* ---------------------------------------------------------------------------
   Page header: eyebrow (a command, mono 12, accent), h1 with a block cursor, deck (20)
   --------------------------------------------------------------------------- */
.hero{padding:48px 16px 40px;margin-inline:-16px;border-bottom:1px solid var(--line-2);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:32px 32px;background-position:-1px -1px}
.eyebrow{font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--green);margin-bottom:16px}
.hero h1 .cur{display:inline-block;width:.5em;height:.9em;background:var(--green);vertical-align:-.08em;margin-left:.15em}
@media (prefers-reduced-motion:no-preference){.hero h1 .cur{animation:blink 1.1s steps(1) infinite}}
@keyframes blink{50%{opacity:0}}
.deck{font-size:20px;line-height:1.55;color:var(--ink-2);max-width:62ch;margin-top:16px}
.ctas{display:flex;flex-wrap:wrap;gap:12px 16px;align-items:center;margin-top:28px}
.under{font-size:14px;line-height:1.5;color:var(--ink-2);margin-top:16px}
@media (min-width:768px){.hero{padding:72px 24px 56px;margin-inline:-24px}}

/* buttons: one primary (accent), one quiet secondary */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 20px;background:var(--green);color:var(--on-green);font-family:var(--sans);font-size:17px;line-height:1.25;font-weight:600;text-decoration:none;border-radius:var(--r);border:1px solid var(--green);cursor:pointer}
.btn:hover{background:var(--green-hi);border-color:var(--green-hi);color:var(--on-green)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:var(--panel);color:var(--ink);border-color:var(--ink-3)}

/* ---------------------------------------------------------------------------
   Sections
   --------------------------------------------------------------------------- */
.sec{padding:48px 0;border-bottom:1px solid var(--line-2);display:flex;flex-direction:column;gap:20px}
.sec:last-child{border-bottom:0}
.sec>*{max-width:760px}
.sec>.cards,.sec>.steps,.sec>.band,.sec>.opts,.sec>.svc,.sec>.form{max-width:none}
.head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 24px}
.head a{font-size:14px;line-height:1.5;font-family:var(--mono)}
.lead{max-width:68ch}
.p2{color:var(--ink-2)}
.list{padding-left:20px;display:flex;flex-direction:column;gap:8px}
.list li::marker{color:var(--green)}
.olist{padding-left:24px;display:flex;flex-direction:column;gap:8px}
.olist li::marker{font-family:var(--mono);color:var(--green)}
.inline-tools{color:var(--ink-2)}
@media (min-width:768px){.sec{padding:64px 0}}

/* cards: three ways in, client websites, lab notes */
.cards{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:12px;min-width:0}
.card .tag{font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--ink-2)}
.card .tag b{color:var(--green);font-weight:600}
.card p{color:var(--ink-2)}
.card .go{margin-top:auto;font-size:17px}

/* services as man-page options: flag (mono 14), then the sentence (sans 17) */
.opts{display:flex;flex-direction:column;gap:16px}
.opt{display:grid;grid-template-columns:1fr;gap:4px}
.opt dt{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green);padding-top:2px}
.opt dd{color:var(--ink)}
@media (min-width:768px){.opt{grid-template-columns:200px minmax(0,1fr);gap:24px}}

/* the engagement as a pipeline: check-up | plan | project | handover */
.pipeline{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--ink-2)}
.pipeline i{font-style:normal;color:var(--green)}
.steps{list-style:none;display:grid;grid-template-columns:1fr;border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
.steps li{padding:20px;display:flex;flex-direction:column;gap:8px;min-width:0}
.steps li+li{border-top:1px solid var(--line)}
.steps li+li::before{content:"|";content:"|"/"";font-family:var(--mono);font-size:14px;line-height:1;color:var(--green);margin:-12px 0 4px}
.steps .n{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green)}
.steps p{color:var(--ink-2)}
@media (min-width:768px){
  .steps{grid-template-columns:repeat(4,minmax(0,1fr))}
  .steps li+li{border-top:0;border-left:1px solid var(--line)}
  .steps li+li::before{display:none}
}

/* one service block on /services */
.svc{display:flex;flex-direction:column;gap:16px;padding:40px 0;border-top:1px solid var(--line-2);max-width:760px}
.svc:first-of-type{border-top:0;padding-top:8px}
.svc .flag{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green)}
.svc .lead{font-size:20px;line-height:1.55}
.svc .get{border-left:3px solid var(--green);padding-left:16px}
.svc .get b{font-family:var(--mono);font-size:14px;line-height:1.5;font-weight:600;color:var(--green);display:block}

/* optional reading for the technical reader: native <details> */
details.more{border:1px solid var(--line);border-radius:var(--r);background:var(--panel)}
details.more summary{cursor:pointer;padding:12px 16px;font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--ink)}
details.more>div{padding:0 16px 16px;color:var(--ink-2);display:flex;flex-direction:column;gap:12px}
details.more .pane{color:var(--pane-ink)}

/* terminal panes: only inside optional reading; bare "$" prompt; never a host, user, IP or path */
.pane{background:var(--pane);border:1px solid var(--pane-line);border-radius:var(--r);padding:12px 16px;font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--pane-ink);white-space:pre-wrap;overflow-wrap:anywhere}
.pane .pr{color:var(--green)}
.pane .m{color:var(--pane-muted)}
.cap{font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--ink-2)}

/* the check-up band */
.band{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:32px 20px;display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.band p{max-width:62ch;color:var(--ink-2)}
@media (min-width:768px){.band{padding:40px}}

/* a mono checklist (what the check-up looks at) */
.checks{list-style:none;display:flex;flex-direction:column;gap:8px}
.checks li{display:grid;grid-template-columns:1fr;gap:2px}
.checks code{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green)}
@media (min-width:768px){.checks li{grid-template-columns:120px minmax(0,1fr);gap:16px}.checks code{padding-top:2px}}

/* key/value ledger (privacy, about) */
.kv{display:grid;grid-template-columns:1fr;gap:4px;padding:16px;background:var(--pane);border:1px solid var(--pane-line);border-radius:var(--r)}
.kv dt{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green)}
.kv dd{color:var(--pane-ink);margin-bottom:12px}
.kv dd:last-child{margin-bottom:0}
@media (min-width:768px){.kv{grid-template-columns:max-content minmax(0,1fr);gap:12px 24px}.kv dd{margin-bottom:0}.kv dt{padding-top:2px}}

/* common questions: each question an h3, the answer plain text */
.qa{display:flex;flex-direction:column;gap:8px;padding:20px 0;border-top:1px solid var(--line-2);scroll-margin-top:48px}
.qa:first-of-type{border-top:0;padding-top:0}
.qa p{color:var(--ink-2)}

/* the check-up form, styled as a config block */
.form{background:var(--pane);border:1px solid var(--pane-line);border-radius:var(--r);padding:20px;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.form .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.field label{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--green)}
.field label i{font-style:normal;color:var(--ink-3)}
.in{min-height:48px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.5;padding:10px 12px;width:100%}
.in::placeholder{color:var(--ink-2);opacity:1}
textarea.in{min-height:96px;resize:vertical}
.in:focus{outline:2px solid var(--green);outline-offset:2px;border-color:var(--green)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.help{font-size:14px;line-height:1.5;color:var(--ink-3)}
.sendrow{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.msg{font-family:var(--mono);font-size:14px;line-height:1.5;border:1px solid var(--line);border-radius:var(--r);padding:12px 16px;background:var(--panel)}
.msg--ok{border-left:3px solid var(--green)}
.msg--err{border-left:3px solid var(--red)}

/* long-form text: blog posts */
.prose{max-width:68ch;display:flex;flex-direction:column;gap:16px}
.prose h2{margin-top:16px}
.prose h3{margin-top:8px}
.prose ul,.prose ol{padding-left:24px;display:flex;flex-direction:column;gap:8px}
.prose .small{font-size:14px;line-height:1.5;color:var(--ink-2)}
.meta{font-family:var(--mono);font-size:14px;line-height:1.5;color:var(--ink-3);margin-top:16px}
.links{display:flex;flex-wrap:wrap;gap:12px 16px;margin-top:28px}
.dl-meta{display:block;font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--ink-2);overflow-wrap:anywhere}

/* footer */
.foot{padding:40px 16px 48px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 20px;font-family:var(--mono);font-size:14px;line-height:1.5}
.foot nav a{color:var(--ink-2)}
.foot nav a:hover{color:var(--ink)}
.foot .line{font-size:14px;line-height:1.5;color:var(--ink-2);max-width:72ch}
.foot .legal{font-family:var(--mono);font-size:12px;line-height:1.5;color:var(--ink-3)}
.foot .legal a{color:var(--ink-2)}
.card .btn{align-self:flex-start}
a[href^="mailto:"]{white-space:nowrap}