/* ============================================================
   ELCOO — shared styles
   Design tokens live at the top; everything below reads from them.
   ============================================================ */

:root{
  /* colour */
  --ink: #14151c;
  --ink-soft: #2a2c38;
  --paper: #ece9df;
  --paper-deep: #e2dfd3;
  --paper-line: #cfccc0;
  --indigo: #3b3fa6;
  --indigo-deep: #2a2d7a;

  /* category swatches — extensible; add one per new field of work */
  --sw-schools: #d6a23b;
  --sw-community: #5b7355;
  --sw-workshops: #c1602a;
  --sw-art: #6b4c6b;
  --sw-commissions: #2c5f5a;

  /* type */
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  /* spacing scale */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.75rem;
  --sp-4: 2.75rem;
  --sp-5: 4.5rem;
  --sp-6: 7.25rem;

  --max: 1180px;
  --edge: clamp(1.25rem, 5vw, 4rem);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

a{ color: inherit; }

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p{ margin: 0; }

.wrap{
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--edge);
  padding-right: var(--edge);
}

/* focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible{
  outline: 2px solid var(--indigo);
  outline-offset: 3px;
}

/* ---------------- header ---------------- */

.site-header{
  position: relative;
  z-index: 5;
  padding: var(--sp-3) 0;
}

.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
}

.wordmark{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.wordmark img{
  display: block;
  height: 1.6rem;
  width: auto;
}

.site-header.on-dark .wordmark img{
  /* logo artwork is black-on-transparent; flip it to white over the dark hero header */
  filter: invert(1);
}

.site-footer .wordmark img{ height: 1.4rem; }

.site-nav{
  display: flex;
  gap: var(--sp-4);
  font-size: 0.95rem;
}

.site-nav a{
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}

.site-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transition: right 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after{
  right: 0;
}

.site-header.on-dark{ color: var(--paper); }

/* ---------------- hero ---------------- */

.hero{
  background: var(--ink);
  color: var(--paper);
  padding-bottom: var(--sp-6);
}

.hero-inner{
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-5);
}

.hero h1{
  font-size: clamp(3rem, 9vw, 6.75rem);
  color: var(--paper);
}

.hero-tagline{
  margin-top: var(--sp-3);
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  max-width: 34ch;
  color: var(--paper);
  opacity: 0.92;
}

.hero-tagline .cycle{
  color: #9ea3ff;
  font-weight: 500;
}

.hero-scope{
  margin-top: var(--sp-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-3);
  font-size: 0.92rem;
  color: var(--paper);
  opacity: 0.8;
}

/* ---------------- section rhythm ---------------- */

section{ padding: var(--sp-6) 0; }
section.tight{ padding: var(--sp-5) 0; }

.section-head{
  max-width: 46ch;
  margin-bottom: var(--sp-4);
}

.section-head h2{
  font-size: clamp(1.75rem, 3.6vw, 2.5rem);
}

.section-head p{
  margin-top: var(--sp-2);
  color: var(--ink-soft);
}

/* ---------------- statement ---------------- */

.statement p{
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.4rem, 3.2vw, 2.15rem);
  line-height: 1.32;
  max-width: 24ch;
}

/* ---------------- fields index (ledger, not cards) ---------------- */

.field-index{
  border-top: 1px solid var(--paper-line);
}

.field-row{
  display: grid;
  grid-template-columns: 2.2rem 1fr 2.4fr;
  gap: var(--sp-3);
  align-items: baseline;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--paper-line);
}

.field-swatch{
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  align-self: center;
  background: var(--dot, var(--indigo));
}

.field-name{
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.field-desc{
  color: var(--ink-soft);
  max-width: 52ch;
}

/* ---------------- image placeholders ---------------- */
/* Swap the background + remove the label span once real photography exists. */

.img-placeholder{
  background: repeating-linear-gradient(45deg, var(--paper-deep), var(--paper-deep) 10px, var(--paper) 10px, var(--paper) 20px);
  border: 1px solid var(--paper-line);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: var(--sp-2);
}

.img-placeholder.wide{ aspect-ratio: 16 / 7; margin-top: var(--sp-5); }
.img-placeholder.tall{ aspect-ratio: 4 / 5; }
.img-placeholder.square{ aspect-ratio: 1 / 1; }

/* ---------------- companies marquee ---------------- */

.logo-marquee{
  overflow: hidden;
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
  padding: var(--sp-4) 0;
}

.logo-marquee .section-head{ padding: 0 var(--edge); margin-bottom: var(--sp-3); }

.logo-track{
  display: flex;
  width: max-content;
  gap: var(--sp-4);
  animation: marquee 26s linear infinite;
}

.logo-marquee:hover .logo-track{ animation-play-state: paused; }

.logo-item{
  flex-shrink: 0;
  height: 2.75rem;
  min-width: 9.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--sp-3);
  border: 1px solid var(--paper-line);
  border-radius: 2px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--ink-soft);
  white-space: nowrap;
  background: var(--paper-deep);
}

@keyframes marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce){
  .logo-track{ animation: none; overflow-x: auto; }
}

/* ---------------- process (genuine sequence, numbering earned) ---------------- */

.process-list{
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: repeat(3, 1fr);
}

.process-step{
  border-top: 1px solid var(--ink);
  padding-top: var(--sp-2);
}

.process-num{
  font-family: var(--font-display);
  font-size: 0.95rem;
  opacity: 0.55;
}

.process-step h3{
  margin-top: var(--sp-1);
  font-size: 1.2rem;
}

.process-step p{
  margin-top: var(--sp-1);
  color: var(--ink-soft);
}

/* ---------------- work preview list ---------------- */

.work-preview{ display: grid; gap: 0; }

.work-row{
  display: grid;
  grid-template-columns: 3rem 8rem 1fr auto;
  gap: var(--sp-3);
  align-items: center;
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--paper-line);
  text-decoration: none;
  color: inherit;
}

.work-thumb{
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  flex-shrink: 0;
  background: repeating-linear-gradient(45deg, var(--paper-deep), var(--paper-deep) 6px, var(--paper) 6px, var(--paper) 12px);
  border: 1px solid var(--paper-line);
}

.work-tag{
  font-size: 0.85rem;
  padding: 0.3em 0.7em;
  border-radius: 999px;
  background: var(--tagbg, var(--indigo));
  color: var(--paper);
  justify-self: start;
}

.work-title{
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
}

.work-arrow{
  opacity: 0.4;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.work-row:hover .work-arrow{
  opacity: 1;
  transform: translateX(3px);
}

/* ---------------- CTA band ---------------- */

.cta-band{
  background: var(--indigo);
  color: var(--paper);
}

.cta-band h2{
  color: var(--paper);
  font-size: clamp(1.9rem, 4vw, 3rem);
  max-width: 18ch;
}

.cta-row{
  margin-top: var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

/* ---------------- buttons / links ---------------- */

.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.5em;
  border-radius: 2px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.98rem;
  text-decoration: none;
  border: 1px solid currentColor;
  background: transparent;
  cursor: pointer;
}

.btn.solid{
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.cta-band .btn.solid{
  background: var(--paper);
  color: var(--indigo-deep);
  border-color: var(--paper);
}

.btn:hover{ opacity: 0.85; }

.btn:disabled{
  opacity: 0.55;
  cursor: not-allowed;
}
.btn:disabled:hover{ opacity: 0.55; }

/* ---------------- footer ---------------- */

.site-footer{
  border-top: 1px solid var(--paper-line);
  padding: var(--sp-4) 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-grid{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-3);
}

.footer-nav{
  display: flex;
  gap: var(--sp-3);
}

.footer-nav a{ text-decoration: none; }
.footer-nav a:hover{ text-decoration: underline; }

/* ---------------- simple page header (about/work/contact) ---------------- */

.page-head{
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-4);
}

.page-head h1{
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.page-head p{
  margin-top: var(--sp-2);
  max-width: 50ch;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

/* ---------------- about page ---------------- */

.about-grid{
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--sp-5);
  align-items: start;
}

.about-copy p + p{ margin-top: var(--sp-2); }

.about-copy p{
  font-size: 1.08rem;
  max-width: 56ch;
}

.principles{ display: grid; gap: var(--sp-3); }

.principle{ border-top: 1px solid var(--paper-line); padding-top: var(--sp-2); }
.principle h3{ font-size: 1.05rem; }
.principle p{ margin-top: 0.4em; color: var(--ink-soft); font-size: 0.98rem; }

/* ---------------- contact page ---------------- */

.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
  align-items: start;
}

.contact-form{
  display: grid;
  gap: var(--sp-3);
}

.field{ display: grid; gap: 0.4em; }

.field label{ font-size: 0.92rem; }

.field-optional{
  color: var(--ink-soft);
  font-weight: 400;
}

/* Honeypot trap — visually and semantically hidden; a real visitor never sees or reaches this field. */
.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.field input,
.field select,
.field textarea{
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 0.85em;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
}

.field textarea{ resize: vertical; min-height: 8rem; }

.form-note{
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.form-note.is-success{ color: var(--sw-community); font-weight: 500; }
.form-note.is-error{ color: #a3372e; font-weight: 500; }

.contact-details dt{
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin-top: var(--sp-3);
}

.contact-details dt:first-child{ margin-top: 0; }

.contact-details dd{
  margin: 0.3em 0 0;
  color: var(--ink-soft);
}

/* ---------------- work index page ---------------- */

.work-filter{
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-bottom: var(--sp-4);
}

.work-filter button{
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 0.45em 0.95em;
  border-radius: 999px;
  border: 1px solid var(--paper-line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.work-filter button[aria-pressed="true"]{
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ---------------- responsive ---------------- */

@media (max-width: 860px){
  .process-list{ grid-template-columns: 1fr; }
  .about-grid,
  .contact-grid{ grid-template-columns: 1fr; }
  .field-row{ grid-template-columns: 1.4rem 1fr; }
  .field-desc{ grid-column: 2 / -1; }
  .work-row{ grid-template-columns: 3rem 1fr auto; }
  .work-tag{ grid-column: 2 / -1; }
}

@media (max-width: 560px){
  .site-nav{ gap: var(--sp-2); font-size: 0.88rem; }
}