/* ============================================================
   Northgate Exteriors — concept site for Karbon Consulting
   Bold utility. Heavy Archivo over Inter, navy + safety orange,
   square corners, high contrast. Built for one job: get the
   homeowner to call. Vanilla CSS, no dependencies.
   ============================================================ */

:root {
  --navy:    #14213d;
  --navy-2:  #1d2f52;
  --navy-3:  #0f1930;
  --orange:  #fca311;
  --orange-2:#e08f00;
  --paper:   #f6f4f0;
  --paper-2: #eceae4;
  --white:   #ffffff;
  --ink:     #14213d;
  --ink-2:   #4a5568;
  --ink-3:   #7a8698;
  --line:    #dcd8d0;
  --line-2:  #c6c1b7;

  --disp: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --shell: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-bottom: 0;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--orange); color: var(--navy); }
:focus-visible { outline: 3px solid var(--orange); outline-offset: 2px; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.shell { width: min(var(--shell), calc(100% - 2.4rem)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; z-index: 60; background: var(--navy); color: #fff; padding: .7rem 1.1rem; }
.skip:focus { left: 1rem; top: 1rem; }

/* ---------------- type ---------------- */
h1, h2, h3 { font-family: var(--disp); font-weight: 800; line-height: 1.02; letter-spacing: -0.028em; }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.5rem); text-transform: uppercase; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); text-transform: uppercase; }
h3 { font-size: 1.18rem; letter-spacing: -0.015em; }
.hl { color: var(--orange); }
.eyebrow {
  display: inline-block; font-family: var(--disp); font-weight: 700; font-size: .72rem;
  letter-spacing: .18em; text-transform: uppercase; color: var(--orange-2);
  border-left: 4px solid var(--orange); padding-left: .7rem; margin-bottom: 1rem;
}
.body { color: var(--ink-2); font-size: 1.03rem; max-width: 60ch; }
.sec-head { margin-bottom: clamp(2.4rem, 5vw, 3.6rem); max-width: 720px; }
.sec-head h2 { margin-bottom: 1rem; }
.sec-head.light, .sec-head.light h2 { color: var(--white); }
.sec-head.light .eyebrow { color: var(--orange); }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .95rem 1.6rem; border: 2px solid transparent; cursor: pointer;
  font-family: var(--disp); font-weight: 700; font-size: .86rem;
  letter-spacing: .05em; text-transform: uppercase; text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease),
              border-color .25s var(--ease), transform .18s var(--ease), box-shadow .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 1.1rem 2rem; font-size: .95rem; }
.btn-block { width: 100%; }
.btn-orange { background: var(--orange); color: var(--navy); box-shadow: 0 4px 0 var(--orange-2); }
.btn-orange:hover { background: #ffb733; box-shadow: 0 6px 0 var(--orange-2); }
.btn-orange:active { box-shadow: 0 2px 0 var(--orange-2); }
.btn-white { background: var(--white); color: var(--navy); box-shadow: 0 4px 0 rgba(0,0,0,.22); }
.btn-white:hover { background: var(--paper); }
.btn .ico { width: 18px; display: block; }

/* ---------------- concept ribbon ---------------- */
.concept-ribbon {
  position: fixed; z-index: 55; left: 50%; bottom: 1rem; transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: .7rem; white-space: nowrap;
  padding: .5rem 1rem; text-decoration: none;
  background: var(--navy); color: #cfd6e4; border: 2px solid var(--orange);
  font-size: .72rem; letter-spacing: .02em; box-shadow: 0 14px 34px -18px rgba(0,0,0,.7);
}
.concept-ribbon:hover { background: var(--navy-2); color: #fff; }
.cr-dot { width: 7px; height: 7px; background: var(--orange); flex: none; }
.cr-text b { color: #fff; font-weight: 700; }
.cr-back { color: var(--orange); border-left: 1px solid rgba(255,255,255,.2); padding-left: .7rem; }
@media (max-width: 700px) { .concept-ribbon { bottom: 4.9rem; } .cr-back { display: none; } }

/* ---------------- topbar + nav ---------------- */
.topbar { background: var(--navy-3); color: #b9c3d6; font-size: .78rem; }
.topbar-in { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; justify-content: space-between; padding: .55rem 0; }
.topbar b { color: #fff; font-weight: 600; }
.topbar-call a { color: var(--orange); font-weight: 600; text-decoration: none; }
@media (max-width: 640px) { .topbar-in { justify-content: center; } .topbar p:first-child { display: none; } }

.nav { position: sticky; top: 0; z-index: 40; background: var(--navy); transition: box-shadow .3s var(--ease); }
.nav.is-stuck { box-shadow: 0 10px 30px -18px rgba(0,0,0,.8); }
.nav-in { display: flex; align-items: center; gap: 2rem; padding: .9rem 0; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; color: #fff; margin-right: auto; }
.brand-mark { width: 30px; color: var(--orange); flex: none; }
.brand-word { font-family: var(--disp); font-weight: 800; font-size: 1.28rem; letter-spacing: -0.03em; text-transform: uppercase; line-height: 1; }
.brand-word em { font-style: normal; color: var(--orange); display: block; font-size: .62rem; letter-spacing: .3em; font-weight: 600; margin-top: .2rem; }
.brand-word.big { font-size: 2rem; }
.brand-word.big em { font-size: .72rem; }
.nav-links { display: flex; gap: 1.9rem; }
.nav-links a {
  color: #c3cbdb; text-decoration: none; font-family: var(--disp); font-weight: 600;
  font-size: .82rem; letter-spacing: .06em; text-transform: uppercase;
  padding: .4rem 0; border-bottom: 3px solid transparent; transition: color .2s, border-color .2s;
}
.nav-links a:hover { color: #fff; border-bottom-color: var(--orange); }
.nav-burger { display: none; width: 42px; height: 36px; border: 0; background: none; cursor: pointer; }
.nav-burger span { display: block; height: 3px; width: 24px; background: #fff; margin: 4px auto; transition: transform .25s var(--ease), opacity .2s; }
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mnav { display: none; flex-direction: column; background: var(--navy-3); padding: .4rem 1.2rem 1.2rem; }
.mnav a { color: #dbe2ee; text-decoration: none; padding: .85rem 0; border-bottom: 1px solid rgba(255,255,255,.1); font-family: var(--disp); font-weight: 600; text-transform: uppercase; font-size: .88rem; }
.mnav a:last-child { color: var(--orange); border-bottom: 0; }
@media (max-width: 940px) {
  .nav-links { display: none; }
  .nav-burger { display: block; }
  .nav-in > .btn { display: none; }
  .mnav { display: flex; }
}

/* ---------------- hero ---------------- */
.hero { position: relative; background: var(--navy); color: #fff; overflow: hidden; padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(4rem, 8vw, 6rem); }
.hero-bg { position: absolute; inset: 0; }
.skyline { width: 100%; height: 100%; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, var(--navy) 32%, rgba(20,33,61,.72) 62%, rgba(20,33,61,.45)); }
.hero-in { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 980px) { .hero-in { grid-template-columns: 1fr; } }

.tagline { font-family: var(--disp); font-weight: 700; font-size: .82rem; letter-spacing: .28em; text-transform: uppercase; color: var(--orange); margin-bottom: 1.2rem; }
.hero h1 { margin-bottom: 1.4rem; }
.lede { color: #c7d0e0; font-size: 1.06rem; max-width: 52ch; margin-bottom: 2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 2.6rem; }
.hero-trust { list-style: none; display: flex; flex-wrap: wrap; gap: 1.4rem 2.6rem; border-top: 1px solid rgba(255,255,255,.16); padding-top: 1.4rem; }
.hero-trust b { display: block; font-family: var(--disp); font-weight: 800; font-size: 1.9rem; line-height: 1; letter-spacing: -0.03em; }
.hero-trust i { font-style: normal; color: var(--orange); }
.hero-trust span { font-size: .78rem; color: #9dabc2; text-transform: uppercase; letter-spacing: .08em; }

/* short-form capture */
.hero-form { background: var(--white); color: var(--ink); border-top: 6px solid var(--orange); box-shadow: 0 40px 70px -34px rgba(0,0,0,.75); }
.hf-head { padding: 1.5rem 1.6rem 0; }
.hf-head h2 { font-size: 1.5rem; margin-bottom: .35rem; }
.hf-head p { font-size: .88rem; color: var(--ink-3); }
.hero-form form { padding: 1.3rem 1.6rem 1.7rem; }
.f { display: block; border: 0; margin-bottom: .95rem; }
.f > span, .f > legend { display: block; font-family: var(--disp); font-weight: 700; font-size: .7rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin-bottom: .4rem; }
.f input, .f textarea {
  width: 100%; padding: .82rem .9rem; border: 2px solid var(--line-2); background: var(--white);
  font-family: var(--body); font-size: .95rem; color: var(--ink); transition: border-color .2s;
}
.f input::placeholder, .f textarea::placeholder { color: #a6adba; }
.f input:focus, .f textarea:focus { border-color: var(--navy); outline: none; }
.f textarea { resize: vertical; }
.pills { display: flex; flex-wrap: wrap; gap: .45rem; }
.pill {
  padding: .55rem .85rem; border: 2px solid var(--line-2); background: var(--white);
  font-family: var(--disp); font-weight: 600; font-size: .8rem; cursor: pointer; color: var(--ink-2);
  transition: all .2s var(--ease);
}
.pill:hover { border-color: var(--navy); color: var(--navy); }
.pill.is-on { background: var(--navy); border-color: var(--navy); color: #fff; }
.hf-fine { font-size: .74rem; color: var(--ink-3); text-align: center; margin-top: .8rem; }
.hf-ok { margin-top: .9rem; padding: .85rem 1rem; background: #e8f5ee; border-left: 4px solid #17875a; color: #14603f; font-size: .88rem; }

/* ---------------- certs ---------------- */
.certs { background: var(--paper-2); border-bottom: 1px solid var(--line); }
.certs-in { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem; padding: 1.3rem 0; }
.certs-label { font-family: var(--disp); font-weight: 700; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.certs-row { list-style: none; display: flex; flex-wrap: wrap; gap: 1rem 2.2rem; }
.certs-row li { font-family: var(--disp); font-weight: 700; font-size: .95rem; color: var(--ink-2); opacity: .8; letter-spacing: -0.01em; }

/* ---------------- sections ---------------- */
.section { padding: clamp(3.6rem, 8vw, 6.5rem) 0; }

.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.3rem; }
.svc {
  background: var(--white); border: 1px solid var(--line); border-top: 5px solid var(--navy);
  padding: 1.7rem 1.5rem 1.5rem; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-top-color .3s;
}
.svc:hover { transform: translateY(-5px); box-shadow: 0 26px 46px -30px rgba(20,33,61,.45); border-top-color: var(--orange); }
.svc-ico { display: block; width: 40px; color: var(--navy); margin-bottom: 1rem; }
.svc:hover .svc-ico { color: var(--orange-2); }
.svc h3 { margin-bottom: .55rem; }
.svc p { color: var(--ink-2); font-size: .93rem; }
.svc-from { margin-top: 1rem; padding-top: .8rem; border-top: 1px solid var(--line); font-size: .84rem !important; color: var(--ink-3) !important; }
.svc-from b { color: var(--navy); font-family: var(--disp); font-weight: 800; font-size: 1.02rem; }
.svc.urgent { border-top-color: var(--orange); }
.svc.urgent .svc-ico { color: var(--orange-2); }

/* ---------------- before / after ---------------- */
.ba { max-width: 940px; }
.ba-stage {
  position: relative; overflow: hidden; border: 3px solid var(--navy);
  aspect-ratio: 900 / 520; background: var(--navy); cursor: ew-resize; user-select: none;
}
.ba-img { position: absolute; inset: 0; }
.ba-img svg { width: 100%; height: 100%; }
/* --pos is written by app.js; the clip is what makes the wipe */
.ba-before { clip-path: inset(0 calc(100% - var(--pos, 50%)) 0 0); }
.ba-line {
  position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 3px;
  background: var(--white); transform: translateX(-50%); pointer-events: none;
  box-shadow: 0 0 0 1px rgba(20,33,61,.3);
}
.ba-knob {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 48px; height: 48px; display: grid; place-items: center;
  background: var(--orange); color: var(--navy); border: 3px solid var(--white);
  border-radius: 50%; box-shadow: 0 8px 22px -8px rgba(0,0,0,.6);
}
.ba-knob svg { width: 24px; }
.ba-tag {
  position: absolute; top: 1rem; padding: .35rem .8rem; background: rgba(20,33,61,.86); color: #fff;
  font-family: var(--disp); font-weight: 700; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
}
.ba-tag-l { left: 1rem; }
.ba-tag-r { right: 1rem; background: rgba(252,163,17,.94); color: var(--navy); }
/* the range is the keyboard-accessible control; the stage mirrors it */
.ba-range { display: block; margin-top: 1rem; }
.ba-range input { width: 100%; accent-color: var(--orange); cursor: ew-resize; }
.ba-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 1.6rem; }
.ba-facts > div { background: var(--white); padding: 1.1rem 1.2rem; }
.ba-facts b { display: block; font-family: var(--disp); font-weight: 800; font-size: 1.5rem; color: var(--navy); line-height: 1.1; }
.ba-facts span { font-size: .8rem; color: var(--ink-3); }

/* ---------------- promise ---------------- */
.promise { background: var(--navy); color: #fff; }
.promise-grid { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.14); }
.promise-grid li { background: var(--navy); padding: 1.8rem 1.6rem; transition: background .3s var(--ease); }
.promise-grid li:hover { background: var(--navy-2); }
.p-num { display: block; font-family: var(--disp); font-weight: 800; font-size: 2.4rem; color: var(--orange); line-height: 1; margin-bottom: .8rem; letter-spacing: -0.04em; }
.promise-grid h3 { margin-bottom: .5rem; }
.promise-grid p { color: #b3bed2; font-size: .92rem; }

/* ---------------- reviews ---------------- */
.rev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.3rem; }
.rev { background: var(--white); border: 1px solid var(--line); padding: 1.7rem 1.6rem; display: flex; flex-direction: column; gap: .9rem; }
.stars { color: var(--orange); font-size: 1.1rem; letter-spacing: .14em; }
.stars i { color: var(--line-2); font-style: normal; }
.rev blockquote { font-size: .96rem; color: var(--ink-2); }
.rev figcaption { margin-top: auto; padding-top: .9rem; border-top: 1px solid var(--line); font-size: .84rem; }
.rev figcaption b { display: block; font-family: var(--disp); font-weight: 700; color: var(--navy); }
.rev figcaption span { color: var(--ink-3); }

.areas { margin-top: 2.6rem; padding: 1.5rem 1.6rem; background: var(--paper-2); border: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .8rem 1.4rem; align-items: center; }
.areas-label { font-family: var(--disp); font-weight: 700; font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.areas ul { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; }
.areas li { background: var(--white); border: 1px solid var(--line-2); padding: .3rem .75rem; font-size: .84rem; font-weight: 500; }

/* ---------------- quote ---------------- */
.quote { background: var(--paper-2); border-top: 1px solid var(--line); }
.quote-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
@media (max-width: 900px) { .quote-grid { grid-template-columns: 1fr; } }
.quote h2 { margin-bottom: 1rem; }
.quote-steps { list-style: none; margin: 1.8rem 0; }
.quote-steps li { display: flex; align-items: center; gap: .9rem; padding: .75rem 0; border-bottom: 1px solid var(--line); font-weight: 500; }
.quote-steps b { flex: none; width: 30px; height: 30px; display: grid; place-items: center; background: var(--navy); color: var(--orange); font-family: var(--disp); font-size: .9rem; }
.quote-call { font-family: var(--disp); font-weight: 700; font-size: 1.05rem; }
.quote-call a { color: var(--orange-2); margin-left: .6rem; text-decoration: none; border-bottom: 2px solid var(--orange); }
.qform { background: var(--white); border: 1px solid var(--line); border-top: 6px solid var(--orange); padding: 1.8rem 1.7rem; }
.q-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 520px) { .q-row { grid-template-columns: 1fr; } }

/* ---------------- footer ---------------- */
.foot { background: var(--navy-3); color: #b3bed2; padding: clamp(2.8rem, 6vw, 4.2rem) 0 5.5rem; }
.foot-in { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; padding-bottom: 2rem; border-bottom: 1px solid rgba(255,255,255,.14); }
.foot .brand-word { color: #fff; }
.foot-addr { font-size: .86rem; margin-top: .8rem; line-height: 1.8; }
.foot-links { display: flex; flex-direction: column; gap: .5rem; }
.foot-links a { text-decoration: none; font-family: var(--disp); font-weight: 600; font-size: .84rem; text-transform: uppercase; letter-spacing: .05em; }
.foot-links a:hover { color: var(--orange); }
.foot-hours { font-size: .86rem; line-height: 1.9; }
.foot-hours b { color: #fff; font-family: var(--disp); }
.foot-fine { padding-top: 1.4rem; font-size: .78rem; color: #7d8aa3; }
.foot-fine a { color: var(--orange); }

/* ---------------- mobile call bar ---------------- */
.callbar { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; }
.callbar a {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: .5rem;
  padding: 1rem .6rem; text-decoration: none; font-family: var(--disp); font-weight: 700;
  font-size: .92rem; text-transform: uppercase; letter-spacing: .04em;
}
.callbar svg { width: 18px; }
.cb-quote { background: var(--navy); color: #fff; }
.cb-call { background: var(--orange); color: var(--navy); }
@media (max-width: 700px) {
  .callbar { display: flex; }
  body { padding-bottom: 3.4rem; }
}

/* ---------------- reveal ---------------- */
.js .r { opacity: 0; transform: translateY(20px); }
.js .r.in { opacity: 1; transform: none; transition: opacity .7s var(--ease), transform .7s var(--ease); }
@media (prefers-reduced-motion: reduce) { .js .r { opacity: 1; transform: none; } }

/* Anchor targets clear the sticky nav rather than sliding under it. */
[id] { scroll-margin-top: 88px; }