/* =========================================================================
   carterlong.net — shared stylesheet
   Direction B1 "Harbor". Every colour is a token; swapping the palette is
   the :root block below and nothing else.
   ========================================================================= */

:root{
  /* Surfaces. Deep petrol rather than flat black, so the canvas has a hue. */
  --bg:#0a1317;
  --bg-2:#101e23;
  --bg-3:#16262c;

  /* Text. fg-soft is 7.3:1 on --bg, fg-dim is for non-essential meta only. */
  --fg:#eef3f2;
  --fg-soft:#93a5a8;
  --fg-dim:#6f8184;

  /* Blue leads: buttons and emphasis. blue-deep passes 4.5:1 against white. */
  --blue:#4d8dff;
  --blue-deep:#2f6fee;
  /* Green signals: numbers, live dots, link underlines, "it works" states. */
  --green:#3fd39b;
  --green-dim:#1e7a5a;
  --amber:#e0a33c;  /* warnings and demo-mode notices only */

  --line:#1d2c31;
  --line-2:#2a3d43;

  --radius:12px;
  --radius-sm:8px;
  --wrap:1140px;
  --wrap-narrow:760px;

  --font-display:'Space Grotesk',system-ui,-apple-system,sans-serif;
  --font-body:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:400 17px/1.65 var(--font-body);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;letter-spacing:-.035em;margin:0;line-height:1.05}
p{margin:0 0 1.1rem}
p:last-child{margin-bottom:0}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}

:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:3px}

.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}

.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--blue-deep);color:#fff;
  padding:.7rem 1.1rem;border-radius:0 0 var(--radius-sm) 0}
.skip:focus{left:0}

/* ---------- layout ---------- */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 1.5rem}
.wrap.narrow{max-width:var(--wrap-narrow)}
.section{padding:5rem 0}
.section.tight{padding:3.5rem 0}
.section.banded{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:20;background:rgba(10,19,23,.88);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:1.5rem;min-height:76px}
.mark{font-family:var(--font-display);font-weight:700;font-size:1.2rem;letter-spacing:-.03em;
  text-decoration:none;margin-right:auto;white-space:nowrap}
.mark i{color:var(--green);font-style:normal}

.nav{display:flex;gap:1.7rem;align-items:center;font-size:15px}
/* :not(.btn) matters. Without it these rules beat .btn on specificity and the
   header CTA renders blue text on a blue fill. */
.nav a{text-decoration:none}
.nav a:not(.btn){color:var(--fg-soft);padding:.2rem 0;border-bottom:1px solid transparent}
.nav a:not(.btn):hover{color:var(--fg)}
.nav a:not(.btn)[aria-current="page"]{color:var(--fg);border-bottom-color:var(--green)}

/* No-JS mobile nav: a hidden checkbox drives the dropdown, so it works with
   scripting off. site.js only adds aria-expanded bookkeeping on top. */
.nav-toggle{display:none}
.nav-label{display:none;cursor:pointer;padding:.55rem;margin:-.55rem;border-radius:var(--radius-sm)}
.nav-label span,.nav-label span::before,.nav-label span::after{
  display:block;width:22px;height:2px;background:var(--fg);border-radius:2px;transition:transform .2s,opacity .2s}
.nav-label span::before,.nav-label span::after{content:"";position:relative}
.nav-label span::before{top:-7px}
.nav-label span::after{top:5px}
.nav-toggle:checked + .nav-label span{background:transparent}
.nav-toggle:checked + .nav-label span::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle:checked + .nav-label span::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-block;text-decoration:none;font-family:var(--font-display);font-size:15px;
  font-weight:500;padding:.72rem 1.35rem;border-radius:var(--radius-sm);
  background:var(--blue-deep);color:#fff;border:1px solid var(--blue-deep);cursor:pointer;
  transition:transform .15s,box-shadow .15s,background .15s,border-color .15s}
.btn:hover{transform:translateY(-2px);background:var(--blue);border-color:var(--blue);
  box-shadow:0 8px 22px rgba(77,141,255,.24)}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line-2)}
.btn.ghost:hover{border-color:var(--green);box-shadow:none;background:transparent}
.btn.block{display:block;width:100%;text-align:center}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.55;pointer-events:none}
@media (prefers-reduced-motion:reduce){.btn:hover{transform:none}}

.actions{display:flex;flex-wrap:wrap;gap:.8rem}

/* ---------- type helpers ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-size:13px;color:var(--fg-soft);
  border:1px solid var(--line-2);border-radius:999px;padding:.4rem .95rem;margin:0 0 1.8rem}
.eyebrow b{color:var(--green);font-weight:500;font-size:10px;line-height:1}
.kicker{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--green);margin:0 0 .7rem}
.kicker.blue{color:var(--blue)}
.lede{font-size:19px;color:var(--fg-soft);max-width:60ch}
.muted{color:var(--fg-soft)}
.dim{color:var(--fg-dim);font-size:14px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:6.5rem 0 5rem}
.hero::before{content:"";position:absolute;inset:-45% 25% auto -22%;height:78%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(77,141,255,.16),transparent 72%)}
.hero::after{content:"";position:absolute;inset:auto -15% -30% 40%;height:60%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(63,211,155,.10),transparent 70%)}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-size:clamp(2.6rem,6.4vw,5rem);max-width:15ch}
.hero h1 span{color:var(--blue)}
.hero p{max-width:56ch;color:var(--fg-soft);font-size:19px;margin:1.9rem 0 0}
.hero .actions{margin-top:2.5rem}

.page-head{padding:4.5rem 0 2.5rem}
.page-head h1{font-size:clamp(2.2rem,5vw,3.6rem);max-width:18ch}
.page-head p{max-width:62ch;color:var(--fg-soft);font-size:19px;margin-top:1.4rem}

/* ---------- three points ---------- */
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.point{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:1.9rem 1.7rem 2rem}
.point .n{font-family:var(--font-display);font-size:13px;color:var(--green);letter-spacing:.1em;
  display:block;margin-bottom:1.4rem}
.point h3{font-size:1.35rem;margin-bottom:.6rem;letter-spacing:-.02em}
.point p{margin:0;color:var(--fg-soft);font-size:15.5px;line-height:1.6}

/* ---------- section head ---------- */
.sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;margin-bottom:2.4rem}
.sechead h2{font-size:clamp(1.9rem,3.8vw,2.9rem)}
.sechead a{font-size:15px;color:var(--blue);text-decoration:none}
.sechead a:hover{text-decoration:underline}

/* ---------- work cards ---------- */
.grid{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--line-2);transform:translateY(-3px)}
@media (prefers-reduced-motion:reduce){.card:hover{transform:none}}
.card .shot{background:#000;border-bottom:1px solid var(--line);position:relative}
.card .shot img{aspect-ratio:1424/805;object-fit:cover;object-position:top center}
.card .body{padding:1.7rem 1.7rem 1.9rem;display:flex;flex-direction:column;flex:1}
.card h3{font-size:1.55rem;margin-bottom:.7rem}
.card h3 a{text-decoration:none}
.card h3 a:hover{color:var(--blue)}
.card p{color:var(--fg-soft);font-size:15.5px;margin:0 0 1.4rem}
.card .tags{margin-top:auto}

.badge{position:absolute;top:.8rem;left:.8rem;font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(10,19,23,.86);border:1px solid var(--line-2);color:var(--fg-soft);
  padding:.28rem .6rem;border-radius:5px;backdrop-filter:blur(4px)}
.badge.demo{color:var(--amber);border-color:rgba(224,163,60,.4)}

.tags{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 1.3rem;padding:0;list-style:none}
.tags li{font-size:12px;padding:.28rem .65rem;border:1px solid var(--line);border-radius:6px;
  color:var(--fg-soft);background:var(--bg-3)}

.projlinks{display:flex;flex-wrap:wrap;gap:1.2rem;align-items:center;font-size:14.5px}
.projlinks a{color:var(--fg);text-decoration:none;border-bottom:1px solid var(--green);padding-bottom:1px}
.projlinks a:hover{color:var(--green)}
.projlinks a.plain{color:var(--fg-soft);border-color:var(--line-2)}
.projlinks a.plain:hover{color:var(--fg)}

/* Sits in the same grid row as a finished card now, so it gets stretched to
   the card's height. Centre the text rather than leaving it stranded at the
   top of a tall dashed box. */
.placeholder{border:1px dashed var(--line-2);border-radius:14px;padding:2.4rem;text-align:center;
  display:flex;flex-direction:column;justify-content:center;min-height:11rem}
.placeholder h3{font-size:1.45rem;margin-bottom:.5rem}
.placeholder p{color:var(--fg-soft);margin:0;font-size:15.5px}

/* ---------- case study ---------- */
.cs-hero{border-bottom:1px solid var(--line);padding:3.5rem 0 3rem}
.cs-hero h1{font-size:clamp(2.2rem,5vw,3.5rem);margin-bottom:1.2rem}
.cs-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.4rem;
  margin-top:2.4rem;padding-top:1.8rem;border-top:1px solid var(--line)}
.cs-meta dt{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-dim);margin-bottom:.4rem}
.cs-meta dd{margin:0;font-size:15.5px;color:var(--fg)}

.figure{margin:2.6rem 0}
.figure img{border:1px solid var(--line);border-radius:var(--radius)}
.figure figcaption{margin-top:.8rem;font-size:14px;color:var(--fg-dim)}

.prose{max-width:68ch}
.prose h2{font-size:1.75rem;margin:3rem 0 1rem}
.prose h3{font-size:1.3rem;margin:2.2rem 0 .7rem}
.prose p,.prose li{color:var(--fg-soft);font-size:17px}
.prose strong{color:var(--fg);font-weight:600}
.prose ul{padding-left:1.1rem;margin:0 0 1.1rem}
.prose li{margin-bottom:.55rem}
.prose li::marker{color:var(--green)}
.prose a{color:var(--blue)}
.prose > :first-child{margin-top:0}
.prose code{font-family:ui-monospace,'Cascadia Code',Menlo,monospace;font-size:.88em;
  background:var(--bg-3);border:1px solid var(--line);border-radius:4px;padding:.1em .4em;color:var(--fg)}

.callout{border-left:2px solid var(--green);background:var(--bg-2);padding:1.3rem 1.5rem;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:2rem 0}
.callout p{margin:0;font-size:16px}
.callout .kicker{margin-bottom:.5rem}

/* ---------- notices ---------- */
.notice{border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:.95rem 1.15rem;
  font-size:15px;color:var(--fg-soft);background:var(--bg-2);margin-bottom:1.5rem}
.notice.warn{border-color:rgba(224,163,60,.42);color:#e6c184}
.notice.ok{border-color:rgba(63,211,155,.42);color:#8fe3c1}
.notice.err{border-color:rgba(255,120,120,.45);color:#ffabab}
.notice strong{color:inherit}
[hidden]{display:none !important}

/* ---------- forms ---------- */
.form-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:2rem}
.field{margin-bottom:1.25rem}
.field label{display:block;font-size:14.5px;font-weight:500;margin-bottom:.45rem}
/* Not scoped to .field: the form also uses .hint outside one, under the button. */
.hint{font-size:13.5px;color:var(--fg-dim);margin:.35rem 0 0}
.field .req{color:var(--green)}
input[type=text],input[type=email],input[type=tel],textarea,select{
  width:100%;font:400 16px/1.5 var(--font-body);color:var(--fg);
  background:var(--bg);border:1px solid var(--line-2);border-radius:var(--radius-sm);
  padding:.7rem .85rem;transition:border-color .15s}
input:hover,textarea:hover,select:hover{border-color:#3a4d53}
input:focus,textarea:focus,select:focus{border-color:var(--blue);outline:none;
  box-shadow:0 0 0 3px rgba(77,141,255,.18)}
textarea{resize:vertical;min-height:130px}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--fg-soft) 50%),
  linear-gradient(135deg,var(--fg-soft) 50%,transparent 50%);
  background-position:calc(100% - 20px) 55%,calc(100% - 15px) 55%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:2.5rem}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
/* Honeypot. Off-screen rather than display:none so bots still fill it. */
.hp-wrap{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:3rem 0 2.5rem;margin-top:auto;color:var(--fg-soft);font-size:14.5px}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2.5rem}
.site-footer h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-dim);
  margin-bottom:.9rem;font-weight:500}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:.5rem}
.site-footer a{text-decoration:none;color:var(--fg-soft)}
.site-footer a:hover{color:var(--fg)}
.site-footer .base{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
  padding-top:1.6rem;border-top:1px solid var(--line);color:var(--fg-dim)}

body{display:flex;flex-direction:column;min-height:100vh}
main{flex:1}

/* ---------- reveal ----------
   Gated on .js, which a tiny inline script in <head> sets before first paint.
   Scripting off means the rule never applies and content is simply visible,
   with no flash of hidden text in either direction. */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* =========================================================================
   Reserved: services and pricing.
   Not used yet, on purpose. When a services section gets added it drops into
   an existing .section with these classes and needs no new CSS.
   ========================================================================= */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.3rem}
.plan{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:1.9rem}
.plan.featured{border-color:var(--green)}
.plan .price{font-family:var(--font-display);font-size:2.1rem;letter-spacing:-.03em;margin:.6rem 0 1rem}
.plan ul{list-style:none;padding:0;margin:0 0 1.6rem}
.plan li{padding-left:1.4rem;position:relative;margin-bottom:.6rem;color:var(--fg-soft);font-size:15.5px}
.plan li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;
  border-radius:50%;background:var(--green)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .nav-label{display:block}
  .nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;
    align-items:stretch;gap:0;background:var(--bg-2);border-bottom:1px solid var(--line);
    padding:.5rem 1.5rem 1.2rem}
  .nav-toggle:checked ~ .nav{display:flex}
  .nav a:not(.btn){padding:.85rem 0;border-bottom:1px solid var(--line)}
  .nav a:not(.btn)[aria-current="page"]{border-bottom-color:var(--line)}
  .nav .btn{margin-top:1rem;text-align:center}
  .site-header .wrap{position:relative;flex-wrap:wrap}
  .points,.grid,.field-row{grid-template-columns:1fr}
  .site-footer .cols{grid-template-columns:1fr;gap:2rem}
  .hero{padding:4rem 0 3rem}
  .section{padding:3.5rem 0}
  .page-head{padding:3rem 0 2rem}
}

@media (max-width:640px){
  body{font-size:16.5px}
  .form-card{padding:1.4rem}
  .cs-meta{grid-template-columns:1fr 1fr}
}