/* Sarnia Digital. Paper, ink and the colours of the International Code of Signals. */

@font-face {
  font-family: "Archivo";
  src: url("/fonts/Archivo-100-900.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face { font-family: "Plex Mono"; src: url("/fonts/IBMPlexMono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Mono"; src: url("/fonts/IBMPlexMono-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --paper: #F3EFE4;
  --sand: #E9E2D1;
  --ink: #0F1A2E;
  --ink-2: #3A4455;
  --muted: #6A7180;
  --line: #D8CFBB;
  --navy: #13295E;
  --blue: #1D3F94;
  --red: #D8322A;
  --red-deep: #B7261F;
  --yellow: #F2B90C;
  --wrap: 1180px;
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-out: cubic-bezier(.23, 1, .32, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.6 var(--sans); font-stretch: 100%;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--yellow); color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(var(--wrap), 100% - 48px); margin-inline: auto; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--ink); color: var(--paper); padding: 8px 14px; }
.skip:focus { left: 8px; }

.label {
  margin: 0 0 18px; font: 500 12px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; gap: 10px;
}
h1, h2, h3 { margin: 0; font-family: var(--sans); color: var(--ink); }
h2 { font-size: clamp(2.2rem, 5vw, 3.9rem); line-height: 1; font-weight: 800; font-stretch: 112%; letter-spacing: -.025em; }
h3 { font-size: 1.35rem; line-height: 1.2; font-weight: 750; font-stretch: 108%; letter-spacing: -.01em; }
p { margin: 0 0 1em; }

/* -------------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 15px 24px; border: 2px solid transparent;
  font: 700 15px/1 var(--sans); font-stretch: 110%; letter-spacing: .01em; text-decoration: none; cursor: pointer;
  transition: transform .16s var(--ease-out), background-color .2s, color .2s, border-color .2s, opacity .2s;
}
@media (hover: hover) and (pointer: fine) {
  .btn:hover { transform: translateY(-2px); }
}
/* Pressing gives way a little, so the button feels like it heard you. */
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .7; cursor: progress; transform: none; }
.btn.small { padding: 10px 16px; font-size: 14px; }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: var(--red-deep); }
.btn-ink { background: var(--ink); color: var(--paper); }
.btn-ink:hover { background: var(--blue); }
.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }

/* --------------------------------------------------------------------- header */
.top { position: sticky; top: 0; z-index: 20; background: var(--paper); border-bottom: 1px solid transparent; transition: border-color .3s; }
.top.scrolled { border-bottom-color: var(--line); }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 72px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand-flags { display: flex; gap: 2px; }
.brand-flags svg { width: 15px; height: 12px; }
.brand-word { font-weight: 800; font-stretch: 118%; font-size: 17px; letter-spacing: -.01em; }
.brand-word b { font-weight: 800; color: var(--red); }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.btn) { font-weight: 600; font-size: 15px; text-decoration: none; color: var(--ink-2); position: relative; }
.nav a:not(.btn)::after { content: ""; position: absolute; left: 0; right: 0; bottom: -5px; height: 2px; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease-out); }
@media (hover: hover) and (pointer: fine) {
  .nav a:not(.btn):hover::after { transform: scaleX(1); }
}

/* ----------------------------------------------------------------------- hero */
.hero { padding: clamp(40px, 8vw, 96px) 0 0; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(32px, 6vw, 96px); align-items: center; }
.hero-title { font-size: clamp(3rem, 8.5vw, 8.1rem); line-height: .9; font-weight: 900; font-stretch: 118%; letter-spacing: -.045em; margin: 0 0 28px; }
.hero-title .line { display: block; }
.hero-title .signal { color: var(--red); }
.lede { font-size: clamp(1.1rem, 1.7vw, 1.3rem); line-height: 1.55; color: var(--ink-2); max-width: 34em; margin-bottom: 34px; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* The hoist: a halyard with six flags clipped on, swaying a little in the wind. */
.hoist { position: relative; margin: 0; padding: 0 0 0 26px; }
.halyard { position: absolute; left: 10px; top: -140px; bottom: 36px; width: 2px; background: var(--ink); }
.halyard::after { content: ""; position: absolute; left: -5px; bottom: -6px; width: 12px; height: 12px; border: 2px solid var(--ink); border-radius: 50%; background: var(--paper); }
.hoist-flags { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.hoist-flags li { position: relative; }
.hoist-flags li::before { content: ""; position: absolute; left: -16px; top: 50%; width: 16px; height: 2px; background: var(--ink); }
.hoist .flag svg { width: clamp(88px, 10vw, 124px); height: auto; }
.hoist figcaption { margin-top: 18px; font: 500 12px/1.5 var(--mono); letter-spacing: .1em; color: var(--ink); }
.hoist figcaption span { display: block; color: var(--muted); letter-spacing: .04em; }

.flag { display: block; padding: 0; border: 0; background: none; cursor: help; transform-origin: 0 50%; transition: transform .2s var(--ease-out), filter .2s var(--ease-out); }
/* The shadow stays a filter (not a box-shadow) so it follows the swallowtail flags' real outline. */
.flag:focus-visible { transform: scale(1.06) rotate(-2deg); filter: drop-shadow(0 8px 14px rgba(15, 26, 46, .22)); }
@media (hover: hover) and (pointer: fine) {
  .flag:hover { transform: scale(1.06) rotate(-2deg); filter: drop-shadow(0 8px 14px rgba(15, 26, 46, .22)); }
}
.flag:active { transform: scale(.97); transition-duration: .1s; }
/* The wind sways the flag's cloth (the svg), not the button: an animation on the button itself
   would override the hover and press transforms above. */
.hoist-flags .flag svg { transform-origin: 0 50%; }
@media (prefers-reduced-motion: no-preference) {
  .hoist-flags .flag svg { animation: wind 6s ease-in-out infinite; }
  .hoist-flags li:nth-child(2) .flag svg { animation-delay: -.8s; }
  .hoist-flags li:nth-child(3) .flag svg { animation-delay: -1.6s; }
  .hoist-flags li:nth-child(4) .flag svg { animation-delay: -2.4s; }
  .hoist-flags li:nth-child(5) .flag svg { animation-delay: -3.2s; }
  .hoist-flags li:nth-child(6) .flag svg { animation-delay: -4s; }
  .hoist-flags .flag:hover svg, .hoist-flags .flag:focus-visible svg { animation-play-state: paused; }
}
@keyframes wind {
  0%, 100% { transform: skewY(0deg) scaleX(1); }
  30% { transform: skewY(-2.2deg) scaleX(.97); }
  60% { transform: skewY(1.4deg) scaleX(.99); }
}

.hero-foot { display: flex; flex-wrap: wrap; gap: 10px 40px; margin-top: clamp(40px, 7vw, 80px); padding: 18px 0; border-top: 1px solid var(--line); font: 500 12px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.hero-foot b { color: var(--ink); font-weight: 500; }

/* ------------------------------------------------------------------- sections */
.section { padding: clamp(72px, 11vw, 136px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 68px); }
.section-head h2 { margin-bottom: 20px; }
.section-lede { font-size: 1.15rem; color: var(--ink-2); max-width: 36em; }
.section-lede a { color: var(--blue); font-weight: 600; }
.section-sand { background: var(--sand); }
.section-navy { background: var(--navy); color: #E9EDF7; }
.section-navy h2, .section-navy h3 { color: #fff; }
.section-navy .label { color: #9FB0D6; }
.section-navy .section-lede { color: #C7D0E6; }

/* Services: four signal cards */
.signals { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.signal-card { padding: 30px 26px 34px 0; border-right: 1px solid var(--line); }
.signal-card + .signal-card { padding-left: 26px; }
.signal-card:last-child { border-right: 0; padding-right: 0; }
.card-flag svg { width: 64px; height: auto; margin-bottom: 22px; }
.code { font: 500 12px/1.5 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.code span { display: block; text-transform: none; letter-spacing: 0; font-style: italic; color: var(--ink-2); }
.signal-card h3 { margin-bottom: 10px; }
.signal-card p:last-child { color: var(--ink-2); font-size: 16px; margin: 0; }

/* Work: two case studies */
.case { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; padding: 44px 0; border-top: 1px solid rgba(255, 255, 255, .14); }
.case.flip { grid-template-columns: 1fr 1.35fr; }
.case.flip .case-shot { order: 2; }
.case-shot { display: block; background: #0A1636; border: 1px solid rgba(255, 255, 255, .16); box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .6); text-decoration: none; transition: transform .25s var(--ease-out); }
@media (hover: hover) and (pointer: fine) {
  .case-shot:hover { transform: translateY(-4px) rotate(-.4deg); }
}
.case-shot:active { transform: scale(.99); transition-duration: .1s; }
.case-bar { display: flex; align-items: center; gap: 6px; padding: 10px 12px; border-bottom: 1px solid rgba(255, 255, 255, .12); font: 500 11px/1 var(--mono); color: #9FB0D6; }
.case-bar i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, .22); }
.case-bar span { margin-left: 10px; }
.case-shot img { width: 100%; height: auto; }
.case-copy .code { color: #9FB0D6; }
.case-copy h3 { font-size: clamp(2rem, 3.4vw, 2.8rem); font-weight: 900; font-stretch: 116%; letter-spacing: -.03em; margin-bottom: 6px; }
.case-line { font-size: 1.2rem; color: var(--yellow); font-weight: 600; margin-bottom: 16px; }
.case-copy p { color: #C7D0E6; }
.facts { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 24px; padding: 0; }
.facts li { font: 500 12px/1 var(--mono); padding: 8px 10px; border: 1px solid rgba(255, 255, 255, .22); color: #E9EDF7; }
.more { font-weight: 700; font-stretch: 110%; color: #fff; text-decoration: none; border-bottom: 2px solid var(--red); padding-bottom: 3px; }
.more:hover { color: var(--yellow); }

/* Process */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: step; }
.steps li { padding: 26px 26px 0 0; border-top: 2px solid var(--ink); position: relative; }
.steps li + li { padding-left: 26px; border-left: 1px solid var(--line); }
.step-n { display: block; font: 900 3.6rem/1 var(--sans); font-stretch: 120%; letter-spacing: -.04em; color: var(--red); margin-bottom: 18px; }
.steps h3 { margin-bottom: 8px; }
.steps p { color: var(--ink-2); font-size: 16px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(36px, 6vw, 90px); align-items: start; }
.k-flag svg { width: 30px; height: auto; }
.contact-copy h2 { margin-bottom: 20px; }
.preview { margin-top: 44px; padding: 22px; border: 1px dashed var(--line); background: rgba(255, 255, 255, .35); }
.preview-label { font: 500 12px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.preview-flags { display: flex; flex-wrap: wrap; gap: 8px 16px; min-height: 40px; align-items: center; }
.preview-flags .word { display: flex; gap: 3px; }
.preview-flags svg { width: 36px; height: auto; }
/* Only the letter just typed is hoisted; the rest of the name stays put. */
.preview-flags svg.new { animation: hoisted .22s var(--ease-out) both; }
.preview-flags.placeholder { gap: 3px; }
.preview-flags.placeholder svg { opacity: .28; animation: none; }
.preview-note { margin: 12px 0 0; font-size: 14px; color: var(--muted); }
@keyframes hoisted { from { transform: translateY(-10px); opacity: 0; } }

.brief { display: grid; gap: 18px; padding: clamp(24px, 3.5vw, 40px); background: #FBF9F4; border: 1px solid var(--line); box-shadow: 10px 10px 0 var(--ink); transition: box-shadow .4s var(--ease-out); }
.field { display: grid; gap: 7px; font-weight: 600; font-size: 14px; color: var(--ink); }
.field.two { grid-template-columns: 1fr 1fr; gap: 16px; }
.field.two label { display: grid; gap: 7px; }
.brief input, .brief textarea {
  width: 100%; padding: 13px 14px; border: 1.5px solid var(--line); background: #fff; color: var(--ink);
  font: 400 16px/1.4 var(--sans); border-radius: 0; transition: border-color .2s, box-shadow .2s;
}
.brief textarea { resize: vertical; min-height: 130px; }
.brief input:focus, .brief textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(29, 63, 148, .15); }
.brief input::placeholder, .brief textarea::placeholder { color: #9AA0AC; }
.brief [aria-invalid="true"] { border-color: var(--red); }
.chips { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips legend { padding: 0; margin-bottom: 8px; font-weight: 600; font-size: 14px; }
.chips label { position: relative; }
.chips input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.chips span { display: inline-block; padding: 9px 14px; border: 1.5px solid var(--line); background: #fff; font-weight: 600; font-size: 14px; transition: background-color .15s ease, border-color .15s ease, color .15s ease, transform .16s var(--ease-out); }
.chips input:active + span { transform: scale(.97); }
.chips input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chips input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.send-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-top: 4px; }
.form-status { margin: 0; font-weight: 600; font-size: 15px; }
.form-status.ok { color: #1E7A4C; }
.form-status.bad { color: var(--red); }
.brief.sent { box-shadow: 10px 10px 0 var(--yellow); }

/* ----------------------------------------------------------------------- footer */
.foot { background: var(--ink); color: #C9CFDA; padding: clamp(64px, 9vw, 110px) 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: end; padding-bottom: 56px; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.foot-slogan { margin: 0; font: 900 clamp(2.8rem, 7vw, 6rem)/.92 var(--sans); font-stretch: 118%; letter-spacing: -.045em; color: #fff; }
.foot-slogan span { color: var(--red); }
.foot-cols { display: grid; grid-template-columns: repeat(3, auto); gap: 32px; justify-content: end; }
.foot-cols .label { color: #7E879A; margin-bottom: 12px; }
.foot-cols a, .foot-cols p { display: block; margin: 0 0 6px; color: #E4E8F0; text-decoration: none; font-weight: 500; }
.foot-cols a:hover { color: var(--yellow); }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 24px; font: 500 12px/1.5 var(--mono); color: #7E879A; }

/* The 404 page and the no-JavaScript thank-you page (send.php). */
.oops-flag { width: 120px; height: auto; margin-bottom: 28px; }
.spaced { margin: 20px 0 32px; }

/* ------------------------------------------------------------------ the flag tooltip */
.flag-tip {
  position: fixed; z-index: 60; max-width: 260px; padding: 12px 14px; background: var(--ink); color: #fff;
  font-size: 14px; line-height: 1.45; pointer-events: none; box-shadow: 0 12px 30px rgba(15, 26, 46, .3);
  /* Grows out of the flag it describes (site.js sets the origin), and fades away a touch faster. */
  opacity: 0; transform: scale(.97); visibility: hidden;
  transition: opacity .1s ease-out, transform .1s ease-out, visibility 0s linear .1s;
}
.flag-tip.open { opacity: 1; transform: none; visibility: visible; transition: opacity .125s ease-out, transform .125s var(--ease-out), visibility 0s; }
/* Moving straight from one flag to the next: no delay, no animation. */
.flag-tip.instant { transition: none; }
.flag-tip b { display: block; font: 500 11px/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--yellow); margin-bottom: 4px; }

/* ------------------------------------------------------------------- reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
.js .reveal.in { opacity: 1; transform: none; }
/* Reduced motion: things still fade in, they just don't travel. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { transform: none; transition: opacity .2s ease; }
  .btn, .flag, .case-shot, .chips span, .nav a:not(.btn)::after { transition-property: background-color, border-color, color, opacity; }
  .btn:active, .flag:active, .case-shot:active, .chips input:active + span { transform: none; }
  .preview-flags svg.new { animation: fade .2s ease both; }
  .flag-tip, .flag-tip.open { transform: none; }
}
@keyframes fade { from { opacity: 0; } }

/* ------------------------------------------------------------------------ smaller */
@media (max-width: 1020px) {
  .signals { grid-template-columns: 1fr 1fr; }
  .signal-card { padding: 28px 22px 30px 0 !important; border-right: 0; border-bottom: 1px solid var(--line); }
  .signal-card:nth-child(odd) { border-right: 1px solid var(--line); }
  .signal-card:nth-child(even) { padding-left: 22px !important; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .steps li:nth-child(3) { border-left: 0; padding-left: 0; }
  .case, .case.flip { grid-template-columns: 1fr; }
  .case.flip .case-shot { order: 0; }
  .contact-grid, .foot-grid { grid-template-columns: 1fr; }
  .foot-cols { justify-content: start; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav a:not(.btn) { display: none; }
  .brand-word, .nav .btn { white-space: nowrap; }
  .top-row { height: 64px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hoist { order: -1; padding: 0 0 0 0; }
  .halyard { left: 0; right: 0; top: 11px; bottom: auto; width: auto; height: 2px; }
  .halyard::after { display: none; }
  .hoist-flags { grid-auto-flow: column; justify-content: start; gap: 6px; padding-top: 20px; }
  .hoist-flags li::before { left: 50%; top: -9px; width: 2px; height: 9px; }
  .hoist .flag svg { width: min(13vw, 60px); }
  .hoist figcaption { margin-top: 10px; }
  .hoist figcaption span { display: inline; margin-left: 6px; }
  .signals, .steps { grid-template-columns: 1fr; }
  .signal-card, .signal-card:nth-child(even), .signal-card:nth-child(odd) { padding: 26px 0 !important; border-right: 0; }
  .steps li, .steps li + li { padding: 24px 0 0; border-left: 0; }
  .field.two { grid-template-columns: 1fr; }
  .brief { box-shadow: 6px 6px 0 var(--ink); }
  .foot-cols { grid-template-columns: 1fr 1fr; }
}
/* Narrow phones: the hoist sits just under the header, so the header drops its small flags. */
@media (max-width: 520px) {
  .brand-flags { display: none; }
}

/* ---- Sarnia sites bar: a clear way to hop between the studio and the builder ---- */
.net { background: var(--navy); color: #fff; font-size: 13px; }
.net-row { display: flex; align-items: stretch; gap: 4px; height: 40px; }
.net-tab { display: inline-flex; align-items: center; gap: 9px; padding: 0 16px; color: rgba(255, 255, 255, .78); text-decoration: none; font-weight: 600; border-bottom: 3px solid transparent; transition: background .2s, color .2s; }
.net-tab svg { width: 24px; height: 19px; flex: none; box-shadow: 0 0 0 1px rgba(255, 255, 255, .25); }
.net-tab span { font: 500 11.5px/1 var(--mono); opacity: .72; letter-spacing: .02em; }
.net-tab i { font-style: normal; opacity: .8; }
.net-tab:hover { color: #fff; background: rgba(255, 255, 255, .09); }
.net-tab.is-current { color: #fff; background: rgba(255, 255, 255, .1); border-bottom-color: var(--yellow); }
.net-tab:focus-visible { outline: 2px solid var(--yellow); outline-offset: -3px; }
.nav a.nav-builder:not(.btn) { display: inline-flex; align-items: center; gap: 7px; font-weight: 700; font-size: 15px; text-decoration: none; color: var(--red-deep); padding: 6px 12px; border: 1.5px solid var(--red); border-radius: 999px; transition: background-color .2s, color .2s, transform .16s var(--ease-out); }
.nav a.nav-builder:not(.btn):active { transform: scale(.97); }
.nav a.nav-builder:not(.btn) b { font: 700 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; background: var(--red); color: #fff; padding: 3px 6px; border-radius: 999px; }
.nav a.nav-builder:not(.btn):hover { background: var(--red); color: #fff; }
.nav a.nav-builder:not(.btn):hover b { background: #fff; color: var(--red); }
@media (max-width: 720px) { .nav a.nav-builder:not(.btn) { display: none; } }
@media (max-width: 520px) { .net-tab { padding: 0 11px; gap: 7px; } .net-tab span { display: none; } }
.nav a.nav-builder:not(.btn)::after { display: none; }