/* ==========================================================================
   SKELETON STYLES — neutral base.
   AGENT: the ui-ux-pro-max design system drives the look. Re-theme by changing
   the CSS variables in :root below, then add style-specific rules (grain, glass,
   gradients, etc.) per the chosen STYLE. Keep the structure; restyle freely.
   ========================================================================== */

:root {
  /* --- Theme tokens (from design-system/MASTER.md, tuned with client's favorite colors) --- */
  --bg: #fbfbf9;
  --surface: #f1f5f4;
  --text: #1f2422;
  --text-muted: #5b645f;
  --accent: #2f7d74;          /* soft teal */
  --accent-contrast: #ffffff;
  --border: #e1e7e4;

  --font-display: 'Rubik', system-ui, sans-serif;
  --font-body: 'Nunito Sans', system-ui, sans-serif;

  --radius: 12px;
  --maxw: 1080px;
  --space: clamp(3rem, 8vw, 6rem);        /* vertical rhythm between sections */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

/* --- Accessibility --- */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--text); color: var(--bg); padding: .6rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* --- Layout --- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 1.25rem; }
.section { padding-block: var(--space); }

/* --- Type --- */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; font-weight: 600; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .12em; font-size: .8rem;
  color: var(--text-muted); margin-bottom: .75rem;
}
.section__title { font-size: clamp(1.6rem, 4vw, 2.4rem); margin-bottom: 1.5rem; }
.prose { color: var(--text-muted); max-width: 60ch; font-size: 1.05rem; }

/* --- Nav --- */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; padding-block: 1rem; }
.nav__brand { font-family: var(--font-display); font-weight: 600; text-decoration: none; font-size: 1.1rem; }
.nav__menu { list-style: none; display: flex; gap: 1.5rem; align-items: center; padding: 0; }
.nav__menu a { text-decoration: none; color: var(--text-muted); }
.nav__menu a:hover { color: var(--text); }
.nav__cta { color: var(--text) !important; font-weight: 600; }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: .4rem; }
.nav__toggle span { width: 24px; height: 2px; background: var(--text); display: block; }

/* --- Buttons --- */
.btn { display: inline-block; text-decoration: none; padding: .8rem 1.4rem; border-radius: var(--radius); font-weight: 600; transition: transform .15s var(--ease), opacity .15s; cursor: pointer; }
.btn:hover { transform: translateY(-2px); opacity: .92; }
.btn--primary { background: var(--accent); color: var(--accent-contrast); }
.btn--ghost { border: 1px solid var(--border); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* --- Hero --- */
.hero { display: grid; gap: 2.5rem; padding-block: clamp(3rem, 10vw, 7rem); align-items: center; }
.hero__headline { font-size: clamp(2.2rem, 6vw, 3.6rem); margin-bottom: 1rem; }
.hero__sub { color: var(--text-muted); font-size: 1.15rem; max-width: 48ch; margin-bottom: 2rem; }
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* --- Image slots (premium placeholders) --- */
.media-slot {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(135deg, var(--surface), color-mix(in srgb, var(--accent) 22%, var(--surface)));
  display: grid; place-items: center; color: var(--text-muted); border: 1px solid var(--border);
}
.media-slot::after { content: attr(data-initials); font-family: var(--font-display); font-size: 2rem; font-weight: 600; opacity: .55; }
.media-slot--portrait { aspect-ratio: 4 / 5; }
.media-slot--project { aspect-ratio: 16 / 10; }

/* --- Cards grid --- */
.grid { list-style: none; padding: 0; display: grid; gap: 1rem; }
.grid--cards { grid-template-columns: 1fr; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; transition: transform .2s var(--ease), box-shadow .2s var(--ease); }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(31,36,34,.06); }
.card__title { font-size: 1.2rem; margin-bottom: .5rem; }
.card__body { color: var(--text-muted); }

/* --- Work --- */
.work { display: grid; gap: 2rem; }
.project { display: grid; gap: 1rem; }
.project__what { color: var(--text-muted); }
.project__result { color: var(--accent); }

/* --- Process --- */
.steps { list-style: none; padding: 0; display: grid; gap: 1.5rem; counter-reset: step; }
.step { display: grid; gap: .25rem; padding-left: 3.5rem; position: relative; }
.step__n { position: absolute; left: 0; top: 0; font-family: var(--font-display); font-size: 1.5rem; color: var(--accent); font-weight: 600; }

/* --- Testimonials --- */
.quote { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.quote p { margin-bottom: 1rem; }
.quote cite { color: var(--text-muted); font-style: normal; font-weight: 600; }

/* --- FAQ --- */
.faq { display: grid; gap: .5rem; max-width: 70ch; }
.faq details { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq summary:hover { color: var(--accent); }
.faq details p { color: var(--text-muted); margin-top: .75rem; }

/* --- Contact --- */
.contact .social { list-style: none; padding: 0; display: flex; gap: 1rem; margin-top: 1.5rem; flex-wrap: wrap; }
.contact .social a { color: var(--text-muted); text-decoration: none; border-bottom: 1px solid var(--border); transition: color .15s var(--ease), border-color .15s var(--ease); }
.contact .social a:hover { color: var(--accent); border-color: var(--accent); }

/* --- Footer --- */
.site-footer { padding-block: 2.5rem; color: var(--text-muted); border-top: 1px solid var(--border); margin-top: var(--space); }

/* --- Reveal on scroll (progressive; base state visible if JS/motion off) --- */
[data-reveal] { opacity: 1; }
.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ========================= Responsive ========================= */
@media (min-width: 720px) {
  .grid--cards { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1.2fr .8fr; }
  .project { grid-template-columns: 1fr 1fr; align-items: center; }
}
@media (min-width: 1024px) {
  .grid--cards { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
}

/* Mobile nav */
@media (max-width: 719px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: absolute; inset: 64px 0 auto 0; flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 1rem 1.25rem;
    display: none;
  }
  .nav__menu.is-open { display: flex; }
  .nav__menu li { padding: .6rem 0; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}