/* ==========================================================================
   Liquifusion Studios — liquifusion.com
   Design direction A ("Clarity"). See LF/docs/design-decisions.md.
   One stylesheet, no preprocessor, no build step. Keep it that way.
   ========================================================================== */

:root{
  /* Brand — sampled from the logo. Do not invent new brand colors. */
  --blue:#2B86BD;          /* wordmark blue,  Pantone 2925 C */
  --blue-deep:#0B5AA7;     /* deep blue,      Pantone 2935 C */
  --blue-dark:#114B8D;     /* the dot mark */
  --blue-light:#7AC0DC;    /* light blue,     Pantone 2915 C */
  /* The brand blue is a hair too light for small text on white (4.0:1).
     Use --blue for rules, gradients and fills; --blue-text for words. */
  --blue-text:#2676A6;

  /* Neutrals */
  --ink:#12212E;
  --ink-2:#41586B;
  /* --ink-3 was #6E8494, which fails WCAG AA (3.5-3.9:1) as small text.
     Darkened to clear 4.5:1 on white, --bg-2 and --bg-3 alike. */
  --ink-3:#5F727F;
  --line:#E2E9EF;
  --bg:#FFFFFF;
  --bg-2:#F6F9FB;
  --bg-3:#EFF5F9;

  /* Semantic accents — used only by the work register's tags */
  --ok-bg:#E4F3E9;   --ok-fg:#1E7A46;
  --wip-bg:#FDF3E3;  --wip-fg:#8A6A2E;

  --r:10px;
  --wrap:1120px;
  --header-h:92px;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,
         'Helvetica Neue',Arial,'Noto Sans',sans-serif;
}

/* --------------------------------------------------------------- fonts --
   Inter, self-hosted. SIL Open Font License 1.1 — see fonts/OFL.txt.
   Self-hosted rather than loaded from Google Fonts so that no visitor IP is
   handed to a third party, and so the privacy policy stays short and true.
   It is one variable file per subset, covering every weight we use.
   -------------------------------------------------------------------------- */
@font-face{
  font-family:'Inter';
  font-style:normal;
  font-weight:100 900;          /* variable axis */
  font-display:swap;
  src:url('/assets/fonts/inter-latin.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:'Inter';
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url('/assets/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,
    U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,
    U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

/* --------------------------------------------------------------- reset -- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{margin:0;line-height:1.18;letter-spacing:-.021em}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem);font-weight:700}
h2{font-size:clamp(1.55rem,3.2vw,2.15rem);font-weight:700}
h3{font-size:1.1rem;font-weight:600;letter-spacing:-.01em}
p,ul,ol{margin:0}
a{color:var(--blue-deep);text-decoration:none}
a:hover{text-decoration:underline}

/* Visible focus for keyboard users, suppressed for mouse clicks. */
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--blue-deep);color:#fff;padding:12px 20px;
  border-radius:0 0 var(--r) 0;font-weight:600;
}
.skip:focus{left:0;text-decoration:none}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:24px}
.lede{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--ink-2);line-height:1.6}
.eyebrow{
  font-size:.75rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--blue-text);margin-bottom:14px;
}
.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;
}

/* -------------------------------------------------------------- header -- */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.88);
  border-bottom:1px solid var(--line);
}
@supports (backdrop-filter:blur(1px)){
  .site-header{backdrop-filter:saturate(180%) blur(12px)}
}
.nav{display:flex;align-items:center;gap:32px;height:var(--header-h)}
.logo{display:flex;align-items:center}
.logo img{height:42px;width:auto}
.nav-links{margin-left:auto;display:flex;gap:30px}
.nav-links a{color:var(--ink-2);font-size:.95rem;font-weight:500}
.nav-links a:hover{color:var(--blue-deep);text-decoration:none}
.nav-links a[aria-current="page"]{color:var(--blue-deep);font-weight:600}

.btn{
  display:inline-block;background:var(--blue-deep);color:#fff;
  font-weight:600;font-size:.95rem;padding:11px 22px;
  border-radius:var(--r);border:1px solid var(--blue-deep);cursor:pointer;
  transition:background .16s ease;
}
.btn:hover{background:#094a8c;text-decoration:none;color:#fff}
.btn--ghost{background:transparent;color:var(--blue-deep);border-color:#C3D8EA}
.btn--ghost:hover{background:var(--bg-3);color:var(--blue-deep)}

/* Hamburger — hidden until the mobile breakpoint. */
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line);
  border-radius:8px;padding:8px 10px;cursor:pointer;color:var(--ink-2);line-height:0;
}
.nav-toggle svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}
.nav-toggle .icon-close{display:none}
.nav-toggle[aria-expanded="true"] .icon-open{display:none}
.nav-toggle[aria-expanded="true"] .icon-close{display:block}

/* ---------------------------------------------------------------- hero -- */
.hero{position:relative;overflow:hidden;padding:96px 0 88px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(var(--blue-light) 1.4px,transparent 1.4px);
  background-size:26px 26px;opacity:.30;
  -webkit-mask-image:radial-gradient(ellipse 65% 70% at 88% 12%,#000 0%,transparent 72%);
          mask-image:radial-gradient(ellipse 65% 70% at 88% 12%,#000 0%,transparent 72%);
}
.hero > .wrap{position:relative}
.hero h1{max-width:16ch}
.hero .lede{max-width:52ch;margin-top:22px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.trust{
  margin-top:56px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;
  list-style:none;padding-left:0;
}
.trust li{font-size:.86rem;color:var(--ink-3);font-weight:500}
.trust b{color:var(--ink);font-weight:600}

/* ------------------------------------------------------------ sections -- */
.section{padding:88px 0}
.section--alt{background:var(--bg-2);border-block:1px solid var(--line)}
.section-head{max-width:60ch;margin-bottom:46px}
.section-head p{margin-top:14px}

.grid{display:grid;gap:22px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* ------------------------------------------------------- service cards -- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 28px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{
  box-shadow:0 12px 28px -14px rgba(11,90,167,.24);
  border-color:#CFE0EE;transform:translateY(-2px);
}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:.97rem}
.card-icon{
  width:40px;height:40px;border-radius:10px;background:var(--bg-3);
  display:grid;place-items:center;margin-bottom:18px;
}
.card-icon svg{
  width:20px;height:20px;stroke:var(--blue-deep);fill:none;
  stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;
}

/* ------------------------------------------------------------- process -- */
.step .step-n{font-size:.8rem;font-weight:700;color:var(--blue-text);letter-spacing:.1em}
.step h3{margin:8px 0}
.step p{color:var(--ink-2);font-size:.97rem}
.step::before{
  content:"";display:block;height:3px;border-radius:2px;margin-bottom:18px;
  background:linear-gradient(90deg,var(--blue) 0%,var(--blue-light) 100%);
}

/* -------------------------------------------------- work register table -- */
.register{
  width:100%;border-collapse:collapse;font-size:1rem;background:#fff;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.register th{
  font-size:.72rem;font-weight:600;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-3);text-align:left;padding:16px 22px;
  background:var(--bg-3);border-bottom:1px solid var(--line);
}
.register td{
  padding:24px 22px;border-bottom:1px solid var(--line);
  vertical-align:top;color:var(--ink-2);
}
.register tbody tr:last-child td{border-bottom:0}
.register tbody tr{transition:background .16s ease}
.register tbody tr:hover{background:var(--bg-2)}
.register td:first-child{width:29%}
.register .project{
  display:block;color:var(--ink);font-size:1.06rem;font-weight:600;
  letter-spacing:-.01em;margin-bottom:4px;
}
.register .project-sub{display:block;font-size:.86rem;color:var(--ink-3)}
.register .stack{width:15%;font-size:.84rem;color:var(--ink-3);line-height:1.5}
.register .access{width:13%;white-space:nowrap}
.register a{font-size:.88rem;font-weight:600}

.tag{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.09em;
  text-transform:uppercase;padding:5px 11px;border-radius:999px;white-space:nowrap;
}
.tag--live{background:var(--ok-bg);color:var(--ok-fg)}
.tag--private{background:var(--bg-3);color:var(--blue-deep)}
.tag--wip{background:var(--wip-bg);color:var(--wip-fg)}
.footnote{margin-top:20px;font-size:.9rem;color:var(--ink-3)}

/* --------------------------------------------------------- testimonial -- */
.quote{max-width:56rem;margin-inline:auto;text-align:center}
.quote blockquote{
  margin:0;font-size:clamp(1.1rem,2.2vw,1.4rem);line-height:1.55;
  font-weight:500;letter-spacing:-.012em;color:var(--ink);
}
.quote figcaption{margin-top:24px;font-size:.95rem;color:var(--ink-3)}
.quote figcaption b{display:block;color:var(--ink);font-weight:600;font-size:1rem}

/* --------------------------------------------------------------- about -- */
.about{display:grid;grid-template-columns:280px 1fr;gap:52px;align-items:center}
.about img{border-radius:16px;width:280px;height:280px;object-fit:cover}
.pull{
  margin:22px 0 0;padding-left:22px;border-left:3px solid var(--blue-light);
  font-size:1.08rem;color:var(--ink);line-height:1.6;
}
.byline{margin-top:14px;font-size:.9rem;color:var(--ink-3)}

/* ----------------------------------------------------------- CTA band --- */
.band{
  /* Light stop darkened from #1E7FC0 so white body text clears 4.5:1. */
  background:linear-gradient(135deg,var(--blue-deep) 0%,#1D7AB8 100%);
  color:#fff;border-radius:18px;padding:56px 48px;text-align:center;
}
.band h2{color:#fff}
/* Hierarchy in the band comes from size and weight, not from a dimmer
   colour — a tinted paragraph could not reach 4.5:1 over the gradient. */
.band p{color:#fff;max-width:52ch;margin:16px auto 0}
.band .btn{background:#fff;color:var(--blue-deep);border-color:#fff;margin-top:30px}
.band .btn:hover{background:#EAF4FB;color:var(--blue-deep)}

/* -------------------------------------------------------------- footer -- */
.site-footer{
  padding:52px 0 44px;border-top:1px solid var(--line);
  color:var(--ink-3);font-size:.9rem;
}
.footer-grid{
  display:flex;flex-wrap:wrap;gap:28px;
  align-items:flex-end;justify-content:space-between;
}
.footer-mark{height:44px;width:auto;margin-bottom:16px}
.footer-links{display:flex;flex-wrap:wrap;gap:12px 24px;list-style:none;padding-left:0;margin:0}
.site-footer a{color:var(--ink-2)}

/* --------------------------------------------------------- breakpoints -- */
@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .about{grid-template-columns:1fr;gap:30px}
  .about img{width:200px;height:200px}
}

@media (max-width:640px){
  :root{--header-h:76px}
  body{font-size:16px}
  .logo img{height:36px}
  .nav-toggle{display:block}

  /* Nav collapses into a panel under the header. No JS = no panel, so the
     links stay reachable via the footer; see index.html. */
  .nav-links{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;gap:0;margin:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 20px;
    box-shadow:0 18px 30px -22px rgba(18,33,46,.5);
    display:none;
  }
  .nav-links[data-open="true"]{display:flex}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .nav-links a:last-child{border-bottom:0}
  .nav .btn{display:none}

  .grid--3,.grid--4{grid-template-columns:1fr}
  .section{padding:62px 0}
  .hero{padding:64px 0 58px}
  .band{padding:42px 26px;border-radius:14px}

  /* The register becomes stacked blocks — a 4-column table cannot shrink. */
  .register,.register tbody,.register tr,.register td{display:block;width:100%}
  .register thead{display:none}
  .register tr{border-bottom:1px solid var(--line);padding:22px 20px}
  .register tbody tr:last-child{border-bottom:0}
  .register td{border:0;padding:5px 0;width:auto!important}
  .register td.stack,.register td.access{display:inline-block;width:auto!important;padding-right:14px}

  /* The footer link row is 7 items — it must wrap, or the page scrolls sideways. */
  .footer-grid{flex-direction:column;align-items:flex-start;gap:22px}
  .footer-links{gap:10px 20px}
}

/* ---------------------------------------------------------------- print -- */
@media print{
  .site-header,.nav-toggle,.band,.skip{display:none}
  body{font-size:11pt;color:#000}
  a::after{content:" (" attr(href) ")";font-size:9pt;color:#444}
  .register a::after{content:""}
}

/* ==========================================================================
   Interior pages — added in Phase 2
   ========================================================================== */

/* ---------------------------------------------------------- page header -- */
.page-head{padding:72px 0 56px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(var(--blue-light) 1.4px,transparent 1.4px);
  background-size:26px 26px;opacity:.28;
  -webkit-mask-image:radial-gradient(ellipse 55% 80% at 92% 8%,#000 0%,transparent 70%);
          mask-image:radial-gradient(ellipse 55% 80% at 92% 8%,#000 0%,transparent 70%);
}
.page-head > .wrap{position:relative}
.page-head h1{max-width:18ch;font-size:clamp(1.9rem,4.4vw,2.9rem)}
.page-head .lede{max-width:58ch;margin-top:20px}

/* --------------------------------------------------------------- prose -- */
.prose{max-width:70ch}
.prose > * + *{margin-top:20px}
.prose h2{margin-top:48px}
.prose h3{margin-top:32px}
.prose p,.prose li{color:var(--ink-2)}
.prose ul,.prose ol{padding-left:22px}
.prose li + li{margin-top:8px}
.prose strong{color:var(--ink);font-weight:600}
.prose dl{margin:0}
.prose dt{color:var(--ink);font-weight:600;margin-top:20px}
.prose dd{margin:6px 0 0;color:var(--ink-2)}

/* -------------------------------------------------- detailed service row -- */
.detail{display:grid;grid-template-columns:64px 1fr;gap:26px;align-items:start;
  padding:34px 0;border-bottom:1px solid var(--line)}
.detail:last-child{border-bottom:0}
.detail .card-icon{margin-bottom:0;width:52px;height:52px;border-radius:14px}
.detail .card-icon svg{width:24px;height:24px}
.detail h3{font-size:1.25rem;margin-bottom:10px}
.detail p{color:var(--ink-2)}
/* Any block following another gets separation — p+p was not enough once lists
   appeared between paragraphs. */
.detail p + p,.detail ul + p,.detail p + ul{margin-top:14px}
.detail ul{margin:0;padding-left:20px;color:var(--ink-2);font-size:.97rem}
.detail li + li{margin-top:6px}

/* ------------------------------------------------------- process stages -- */
.stage{display:grid;grid-template-columns:96px 1fr;gap:32px;align-items:start;
  padding:44px 0;border-bottom:1px solid var(--line)}
.stage:last-child{border-bottom:0}
.stage .stage-n{
  font-size:2.6rem;font-weight:700;line-height:1;color:var(--blue-light);
  letter-spacing:-.03em;
}
.stage h2{font-size:1.6rem;margin-bottom:14px}
.stage p{color:var(--ink-2)}
.stage p + p,.stage ul + p,.stage p + ul{margin-top:16px}
.stage ul{margin:0;padding-left:20px;color:var(--ink-2)}
.stage li + li{margin-top:7px}

/* ---------------------------------------------------------------- form -- */
.form-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:56px;align-items:start}
.field{margin-bottom:20px}
.field label{display:block;font-weight:600;font-size:.94rem;margin-bottom:7px;color:var(--ink)}
.field .hint{font-weight:400;color:var(--ink-3);font-size:.86rem}
.field input,.field textarea{
  width:100%;font:inherit;font-size:1rem;color:var(--ink);background:#fff;
  border:1px solid #C9D6E1;border-radius:var(--r);padding:12px 14px;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.field textarea{min-height:170px;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(43,134,189,.22);
}
.field input:user-invalid,.field textarea:user-invalid{border-color:#B3261E}
/* Honeypot — off-screen, never announced, never tab-reachable. */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.88rem;color:var(--ink-3);margin-top:16px}
.form-status{margin-top:18px;padding:14px 18px;border-radius:var(--r);font-size:.95rem;display:none}
.form-status[data-state="ok"]{display:block;background:var(--ok-bg);color:var(--ok-fg)}
.form-status[data-state="error"]{display:block;background:#FCEDEC;color:#B3261E}
.form-status[data-state="sending"]{display:block;background:var(--bg-3);color:var(--ink-2)}
.aside-card{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:28px 26px}
.aside-card h3{margin-bottom:12px}
.aside-card p{color:var(--ink-2);font-size:.96rem}
.aside-card p + p{margin-top:14px}
.aside-card a{font-weight:600;word-break:break-word}

/* ----------------------------------------------------------------- 404 -- */
.notfound{text-align:center;padding:120px 0}
.notfound h1{font-size:clamp(2.4rem,7vw,4rem)}
.notfound p{margin-top:18px}
.notfound .cta-row{justify-content:center}

@media (max-width:900px){
  .form-layout{grid-template-columns:1fr;gap:36px}
}
@media (max-width:640px){
  .page-head{padding:52px 0 42px}
  .detail{grid-template-columns:1fr;gap:16px}
  .stage{grid-template-columns:1fr;gap:12px;padding:34px 0}
  .stage .stage-n{font-size:2rem}
  .notfound{padding:80px 0}
}