/* ==========================================================================
   Flowvic — layout & components. Colours come ONLY from theme.css.
   ========================================================================== */

/* ---------- Tokens (non-colour) ---------- */
:root {
  --font-display: "Manrope", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --container: 75rem;                         /* 1200px */
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --header-h: 4.5rem;
  --radius: 3px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 1rem); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 400 1rem/1.65 var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }

:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
::selection { background: var(--color-accent); color: var(--color-accent-contrast); }

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip-link {
  position: absolute; left: var(--gutter); top: -4rem; z-index: 100;
  padding: .75rem 1.25rem; background: var(--color-text); color: var(--color-bg);
  border-radius: var(--radius); font-weight: 600; transition: top .2s;
}
.skip-link:focus { top: .75rem; }

/* ---------- Typography ---------- */
h1, h2, h3, .wordmark { font-family: var(--font-display); }
h2 { font-size: clamp(1.875rem, 1.2rem + 2.6vw, 3.125rem); font-weight: 700; line-height: 1.1; letter-spacing: -.03em; text-wrap: balance; }
h3 { font-size: 1.25rem; font-weight: 700; line-height: 1.3; letter-spacing: -.015em; }
p { text-wrap: pretty; }
.muted { color: var(--color-text-muted); }

.eyebrow {
  display: flex; align-items: center; gap: .75rem;
  font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-text-muted);
}
.eyebrow::before { content: ""; width: 1.5rem; height: 1px; background: var(--color-accent); }

.link-arrow { display: inline-flex; align-items: center; gap: .5rem; font-weight: 600; font-size: .9375rem; }
.link-arrow::after { content: "→"; content: "→" / ""; transition: transform .25s var(--ease); }
.link-arrow:hover { color: var(--color-accent); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .625rem;
  min-height: 3.25rem; padding: 0 1.75rem;
  font: 600 .9375rem/1 var(--font-body); letter-spacing: .005em;
  border: 1px solid transparent; border-radius: var(--radius);
  transition: background-color .2s, color .2s, border-color .2s;
}
.btn::after { content: "→"; content: "→" / ""; transition: transform .25s var(--ease); }
.btn:hover::after { transform: translateX(4px); }
.btn--primary { background: var(--color-accent); color: var(--color-accent-contrast); }
.btn--primary:hover { background: var(--color-accent-hover); }
.btn--secondary { border-color: var(--color-text); color: var(--color-text); }
.btn--secondary:hover { background: var(--color-text); color: var(--color-bg); }
.btn--sm { min-height: 2.5rem; padding: 0 1.125rem; font-size: .875rem; }
.btn--sm::after { content: none; }
.btn[aria-busy="true"] { opacity: .65; pointer-events: none; }
.btn[aria-busy="true"]::after { content: none; }

/* ---------- Wordmark ---------- */
.wordmark { display: inline-flex; align-items: baseline; font-size: 1.5rem; font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.wordmark::after { content: ""; width: .26em; height: .26em; margin-left: .06em; background: var(--color-accent); }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: var(--color-bg); border-bottom: 1px solid transparent;
  transition: border-color .25s;
}
.header.is-scrolled, .header.is-open { border-color: var(--color-border); }
.header__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); gap: 1.5rem; }

.nav__list { display: flex; align-items: center; gap: 2.25rem; }
.nav__link { position: relative; display: block; padding: .5rem 0; font-size: .9375rem; font-weight: 500; color: var(--color-text-muted); transition: color .2s; }
.nav__link::after { content: ""; position: absolute; left: 0; right: 0; bottom: .1rem; height: 1px; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav__link:hover { color: var(--color-text); }
.nav__link[aria-current="true"] { color: var(--color-text); }
.nav__link[aria-current="true"]::after, .nav__link:hover::after { transform: scaleX(1); }
.nav__cta { margin-left: .5rem; }

.nav-toggle { display: none; width: 2.75rem; height: 2.75rem; margin-right: -.6rem; padding: 0; background: none; border: 0; place-items: center; }
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after { display: block; width: 1.375rem; height: 2px; background: var(--color-text); transition: transform .3s var(--ease), background-color .2s; }
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -7px; }
.nav-toggle__bars::after { top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 56.25rem) {
  :root { --header-h: 4rem; }
  .js .nav-toggle { display: grid; }
  .js .nav {
    position: absolute; left: 0; right: 0; top: 100%;
    display: none; max-height: calc(100dvh - var(--header-h));
    overflow-y: auto; background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: .5rem var(--gutter) 2rem;
  }
  .js .nav.is-open { display: block; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link { padding: 1rem 0; font-size: 1.125rem; border-bottom: 1px solid var(--color-border); }
  .nav__link::after { display: none; }
  .nav__link[aria-current="true"] { color: var(--color-accent); }
  .nav__cta { margin: 1.5rem 0 0; }
  .nav__cta .btn { width: 100%; min-height: 3.25rem; font-size: .9375rem; }
  /* no-JS: let the nav wrap under the wordmark */
  html:not(.js) .header__inner { flex-wrap: wrap; padding-block: .75rem; }
  html:not(.js) .nav__list { flex-direction: row; flex-wrap: wrap; gap: .25rem 1.25rem; }
  html:not(.js) .nav__link { padding: .5rem 0; font-size: .9375rem; border: 0; }
  html:not(.js) .nav__cta { margin: 0; }
  html:not(.js) .nav__cta .btn { width: auto; min-height: 2.5rem; }
}

/* ---------- Sections ---------- */
.section { padding-block: var(--section-y); --rule: var(--color-border); }
.section--alt { background: var(--color-bg-alt); --rule: var(--color-border-strong); }
.section--dark { background: var(--color-dark); color: var(--color-on-dark); --rule: var(--color-border-dark); }
.section--dark .eyebrow, .section--dark .muted { color: var(--color-on-dark-muted); }
.section--dark .eyebrow::before { background: var(--color-accent-on-dark); }

.section-head { display: grid; gap: 1.25rem; max-width: 46rem; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.section-head p:not(.eyebrow) { font-size: 1.125rem; color: var(--color-text-muted); max-width: 38rem; }
.section--dark .section-head p:not(.eyebrow) { color: var(--color-on-dark-muted); }

/* Shared "ruled item": hairline on top that draws in an accent on hover */
.ruled { position: relative; padding-top: 1.5rem; border-top: 1px solid var(--rule); }
.ruled::before { content: ""; position: absolute; top: -1px; left: 0; width: 0; height: 1px; background: var(--color-accent); transition: width .5s var(--ease); }
.section--dark .ruled::before { background: var(--color-accent-on-dark); }
.ruled:hover::before { width: 100%; }
.ruled__num { display: block; margin-bottom: 1.25rem; font-size: .8125rem; font-weight: 600; letter-spacing: .08em; color: var(--color-accent); font-variant-numeric: tabular-nums; }
.section--dark .ruled__num { color: var(--color-accent-on-dark); }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(3.5rem, 9vw, 8rem); padding-bottom: 0; }
.hero__title {
  margin-top: 1.75rem;
  font-size: clamp(2.5rem, .6rem + 6.2vw, 5rem);
  font-weight: 800; line-height: 1.04; letter-spacing: -.04em;
}
.hero__title span { display: block; color: var(--color-text-muted); }
.hero__lead { max-width: 37rem; margin-top: clamp(1.5rem, 3vw, 2.25rem); font-size: clamp(1.0625rem, 1rem + .35vw, 1.25rem); line-height: 1.6; color: var(--color-text-muted); }
.hero__actions { display: flex; flex-wrap: wrap; gap: .875rem; margin-top: clamp(2rem, 4vw, 2.75rem); }

.hero__index { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(3.5rem, 8vw, 7rem); border-top: 1px solid var(--color-border); }
.hero__index a { display: flex; flex-direction: column; gap: .5rem; padding: 1.5rem 1.5rem 2.25rem 0; transition: color .2s; }
.hero__index a + a { padding-left: 1.5rem; border-left: 1px solid var(--color-border); }
.hero__index small { font-size: .75rem; font-weight: 600; letter-spacing: .08em; color: var(--color-text-muted); }
.hero__index strong { font-family: var(--font-display); font-size: 1.0625rem; font-weight: 700; letter-spacing: -.01em; transition: color .2s; }
.hero__index a:hover strong { color: var(--color-accent); }
@media (max-width: 56.25rem) {
  .hero__index { grid-template-columns: repeat(2, 1fr); }
  .hero__index a:nth-child(odd) { padding-left: 0; border-left: 0; }
  .hero__index a:nth-child(n+3) { border-top: 1px solid var(--color-border); }
}

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(2rem, 6vw, 6rem); }
.about__head { display: grid; gap: 1.25rem; align-content: start; }
.about__body > p { max-width: 40rem; font-size: 1.125rem; color: var(--color-text-muted); }
.about__body > p + p { margin-top: 1.25rem; }
.focus { display: grid; grid-template-columns: 1fr 1fr; gap: 0 2.5rem; margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.focus li { padding: 1.25rem 0 1.75rem; border-top: 1px solid var(--rule); }
.focus h3 { font-size: 1.0625rem; margin-bottom: .375rem; }
.focus p { font-size: .9375rem; color: var(--color-text-muted); }
@media (max-width: 56.25rem) { .about { grid-template-columns: 1fr; } }
@media (max-width: 36rem) { .focus { grid-template-columns: 1fr; } }

/* ---------- Services ---------- */
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3.5vw, 3.5rem); }
.service { padding-bottom: 1rem; }
.service h3 { font-size: 1.375rem; margin-bottom: .875rem; transition: color .2s; }
.service:hover h3 { color: var(--color-accent); }
.service p { color: var(--color-text-muted); max-width: 28rem; }
@media (max-width: 62rem) { .services { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 38rem) { .services { grid-template-columns: 1fr; } }

/* ---------- Work ---------- */
.note { display: inline-block; margin-top: .5rem; font-size: .875rem; color: var(--color-text-muted); }
.projects { display: grid; gap: clamp(4rem, 9vw, 7.5rem); }
.project { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.project--reverse .project__media { order: 2; }

.project__media { position: relative; padding-bottom: 2rem; }
.frame { background: var(--color-bg); border: 1px solid var(--color-border-strong); border-radius: 8px; overflow: hidden; }
.frame__bar { display: flex; align-items: center; gap: .375rem; height: 2rem; padding: 0 .875rem; border-bottom: 1px solid var(--color-border); }
.frame__bar i { width: .5rem; height: .5rem; border-radius: 50%; background: var(--color-border-strong); }
.frame__body, .phone__body { position: relative; background: var(--color-bg); }
.frame__body { aspect-ratio: 16 / 10; }
.frame__body img, .phone__body img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phone { position: absolute; right: 1.25rem; bottom: 0; width: 22%; min-width: 5.5rem; background: var(--color-bg); border: 1px solid var(--color-border-strong); border-radius: 1.125rem; padding: .375rem; }
.phone__body { aspect-ratio: 9 / 19; border-radius: .8rem; overflow: hidden; }
.placeholder { position: absolute; inset: 0; display: grid; place-content: center; gap: .25rem; padding: 1rem; text-align: center; font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--color-text-muted); }
.placeholder b { font-weight: 600; color: var(--color-text); }

.badge { display: inline-block; margin-bottom: 1.25rem; padding: .25rem .625rem; font-size: .6875rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--color-text-muted); border: 1px solid var(--color-border-strong); border-radius: 2px; }
.project__cat { font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--color-accent); }
.project h3 { margin: .625rem 0 1rem; font-size: clamp(1.625rem, 1.2rem + 1.6vw, 2.375rem); line-height: 1.12; letter-spacing: -.03em; }
.project__overview { color: var(--color-text-muted); }
.facts { display: grid; gap: 1.25rem; margin: 1.75rem 0; padding-top: 1.75rem; border-top: 1px solid var(--rule); }
.facts dt { margin-bottom: .25rem; font-size: .75rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; }
.facts dd { font-size: .9375rem; color: var(--color-text-muted); }
.facts ul:not(.tags) li { position: relative; padding-left: 1.125rem; }
.facts ul:not(.tags) li::before { content: ""; position: absolute; left: 0; top: .72em; width: .5rem; height: 1px; background: var(--color-accent); }
.tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li { padding: .25rem .625rem; font-size: .8125rem; color: var(--color-text); border: 1px solid var(--color-border-strong); border-radius: 2px; }
@media (max-width: 56.25rem) {
  .project { grid-template-columns: 1fr; }
  .project--reverse .project__media { order: 0; }
}

/* ---------- Approach ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.5rem clamp(1.5rem, 3vw, 3rem); counter-reset: step; }
.step h3 { font-size: 1.5rem; margin-bottom: .75rem; }
.step p { color: var(--color-on-dark-muted); }
@media (max-width: 62rem) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 36rem) { .steps { grid-template-columns: 1fr; } }

/* ---------- Technologies ---------- */
.tech { border-bottom: 1px solid var(--rule); }
.tech__row { display: grid; grid-template-columns: 4fr 8fr; gap: 1rem 2rem; padding: 1.5rem 0; border-top: 1px solid var(--rule); }
.tech__row h3 { font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--color-text-muted); font-family: var(--font-body); padding-top: .35rem; }
.tech__list { display: flex; flex-wrap: wrap; gap: .25rem 0; font-family: var(--font-display); font-size: clamp(1.125rem, 1rem + .6vw, 1.5rem); font-weight: 600; letter-spacing: -.015em; }
.tech__list li:not(:last-child)::after { content: "/"; margin: 0 .75em; font-weight: 400; color: var(--color-border-strong); }
@media (max-width: 40rem) { .tech__row { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.contact__intro { display: grid; gap: 1.5rem; }
.contact__intro h2 { font-size: clamp(2rem, 1.2rem + 3vw, 3.5rem); }
.contact__intro > p:not(.eyebrow) { color: var(--color-text-muted); font-size: 1.125rem; max-width: 30rem; }
.contact__list { display: grid; gap: 1.25rem; margin-top: 1rem; padding-top: 1.75rem; border-top: 1px solid var(--rule); }
.contact__list dt { margin-bottom: .125rem; font-size: .75rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--color-text-muted); }
.contact__list a { font-weight: 500; overflow-wrap: anywhere; transition: color .2s; }
.contact__list a:hover { color: var(--color-accent); }

.form { padding: clamp(1.5rem, 4vw, 2.75rem); background: var(--color-bg); border: 1px solid var(--color-border-strong); border-radius: 4px; }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 1.25rem; }
.field { display: grid; gap: .5rem; align-content: start; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .875rem; font-weight: 600; }
.field .opt { font-weight: 400; color: var(--color-text-muted); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 3rem; padding: .75rem .875rem;
  background: var(--color-bg); border: 1px solid var(--color-border-strong); border-radius: var(--radius);
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 9rem; resize: vertical; line-height: 1.55; }
.field select { appearance: none; padding-right: 2.5rem; background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%); background-position: calc(100% - 1.25rem) 52%, calc(100% - .9rem) 52%; background-size: 5px 5px; background-repeat: no-repeat; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--color-text-muted); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: none; border-color: var(--color-text); box-shadow: 0 0 0 1px var(--color-text); }
.field [aria-invalid="true"] { border-color: var(--color-error); box-shadow: 0 0 0 1px var(--color-error); }
.field__error { font-size: .8125rem; font-weight: 500; color: var(--color-error); }
.field__error:empty { display: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form__foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-top: 1.75rem; }
.form__hint { font-size: .8125rem; color: var(--color-text-muted); max-width: 22rem; }
.form-status { margin-top: 1.5rem; padding: .875rem 1rem; font-size: .9375rem; border-left: 3px solid var(--color-text-muted); background: var(--color-bg-alt); }
.form-status[hidden] { display: none; }
.form-status[data-state="success"] { border-color: var(--color-success); }
.form-status[data-state="error"] { border-color: var(--color-error); }
@media (max-width: 62rem) { .contact { grid-template-columns: 1fr; } }
@media (max-width: 36rem) { .form__grid { grid-template-columns: 1fr; } .form__foot .btn { width: 100%; } }

/* ---------- Footer ---------- */
.footer { padding-top: clamp(3.5rem, 7vw, 5.5rem); background: var(--color-dark); color: var(--color-on-dark); --rule: var(--color-border-dark); }
.footer .wordmark::after { background: var(--color-accent-on-dark); }
.footer__grid { display: grid; grid-template-columns: 5fr 3fr 4fr; gap: 2.5rem; padding-bottom: clamp(2.5rem, 5vw, 4rem); }
.footer__brand p { max-width: 21rem; margin-top: 1.25rem; color: var(--color-on-dark-muted); }
.footer__brand .tagline { margin-top: 1.5rem; font-family: var(--font-display); font-weight: 700; letter-spacing: -.01em; color: var(--color-on-dark); }
.footer h2 { margin-bottom: 1.125rem; font-family: var(--font-body); font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--color-on-dark-muted); }
.footer ul { display: grid; gap: .25rem; }
.footer li a { display: inline-block; padding: .3rem 0; color: var(--color-on-dark); transition: color .2s; overflow-wrap: anywhere; }
.footer li a:hover { color: var(--color-accent-on-dark); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem; padding-block: 1.5rem; border-top: 1px solid var(--rule); font-size: .875rem; color: var(--color-on-dark-muted); }
@media (max-width: 56.25rem) { .footer__grid { grid-template-columns: 1fr 1fr; } .footer__brand { grid-column: 1 / -1; } }
@media (max-width: 30rem) { .footer__grid { grid-template-columns: 1fr; } }

/* ---------- 404 ---------- */
.notfound { min-height: 70vh; display: grid; align-content: center; justify-items: start; gap: 1.5rem; padding-block: 5rem; }
.notfound h1 { font-size: clamp(2.5rem, 1rem + 6vw, 5rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.05; }
.notfound p { max-width: 30rem; color: var(--color-text-muted); }

/* ---------- Reveal (progressive enhancement; needs JS) ---------- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}