/* Cooper Cost Consulting — faithful build of the Claude Design source.
   Fonts: Spectral (display), Archivo (body), Space Mono (labels). */

:root {
  --bg:#f4f2ee; --fg:#1a1a1a; --fg2:#46443f; --fg3:#5a574f;
  --muted:#8a8175; --line:#d9d4cb; --surface:#ffffff; --band:#ece9e3;
  --panel:#1a1a1a; --panel-fg:#f4f2ee; --panel-muted:#a39e93; --panel-accent:#7e95a8; --panel-line:#34322e;
  --accent:#33485a; --on-accent:#f4f2ee;
}
[data-theme="dark"] {
  --bg:#1e232b; --fg:#ece9e3; --fg2:#c7c3ba; --fg3:#a8a39a;
  --muted:#8a857b; --line:#333b46; --surface:#272d37; --band:#20262f;
  --panel:#14181e; --panel-fg:#ece9e3; --panel-muted:#8e99a6; --panel-accent:#8aa6bd; --panel-line:#2b323d;
  --accent:#7d9db7; --on-accent:#12161c;
}

* { box-sizing: border-box; }
/* `hidden` must win over component display rules (e.g. .form/.formdone use flex). */
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); transition: background .3s ease, color .3s ease; }
::selection { background: #33485a; color: #f4f2ee; }
input, textarea, button { font-family: inherit; }
input::placeholder, textarea::placeholder { color: var(--muted); }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }

.cc-root {
  font-family: "Archivo", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  width: 100%;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 40px; }
.wrap--pad { padding: 88px 40px; }
.wrap--padfoot { padding: 54px 40px 40px; }
.accent { color: var(--accent); }

/* ===== NAV ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__progress { position: absolute; top: 0; left: 0; height: 2px; width: 0%; background: var(--accent); transition: width .12s linear; }
.nav__inner { max-width: 1180px; margin: 0 auto; padding: 0 40px; height: 72px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.brand__box { width: 26px; height: 26px; border: 1.5px solid var(--fg); display: flex; align-items: center; justify-content: center; font-family: "Spectral", serif; font-size: 14px; flex: none; }
.brand__txt { line-height: 1; }
.brand__name { display: block; font-family: "Spectral", serif; font-size: 19px; }
.brand__name--lg { font-size: 20px; }
.brand__sub { display: block; font-family: "Space Mono", monospace; font-size: 7.5px; letter-spacing: .28em; text-transform: uppercase; color: var(--accent); margin-top: 2px; }
.brand__sub > span { display: block; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a[data-nav] { font-size: 13px; letter-spacing: .02em; text-decoration: none; color: var(--fg2); padding: 4px 0; border-bottom: 1.5px solid transparent; transition: color .2s, border-color .2s; }
.nav__links a[data-nav]:hover { color: var(--fg); }
.nav__links a[data-nav].is-active { color: var(--fg); border-bottom-color: var(--accent); }
.theme-toggle { width: 34px; height: 34px; border: 1px solid var(--line); background: transparent; color: var(--fg); border-radius: 50%; cursor: pointer; font-size: 14px; line-height: 1; display: flex; align-items: center; justify-content: center; transition: border-color .2s, background .2s; }
.theme-toggle:hover { border-color: var(--accent); }
.btn-enquire { font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; color: var(--bg); background: var(--fg); padding: 11px 18px; transition: background .2s, color .2s; }
.btn-enquire:hover { background: var(--accent); color: var(--on-accent); }

/* ===== HERO ===== */
.hero { border-bottom: 1px solid var(--line); }
.hero__grid { display: grid; grid-template-columns: 1.25fr 0.95fr; gap: 64px; align-items: center; min-height: 560px; padding: 64px 0; }
.eyebrow { display: flex; align-items: center; gap: 14px; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--accent); margin-bottom: 30px; }
.eyebrow__tick { width: 26px; height: 1px; background: var(--accent); }
.eyebrow__text { display: flex; flex-direction: column; gap: 4px; line-height: 1.35; }
.hero__headline { position: relative; display: inline-block; }
.hero__h1 { margin: 0; font-family: "Spectral", serif; font-weight: 400; font-size: 66px; line-height: 1.02; letter-spacing: -.02em; }
.hero__h1--glow {
  position: absolute; inset: 0; z-index: 2; pointer-events: none; color: transparent;
  text-shadow: 0 0 5px color-mix(in srgb, var(--accent) 90%, transparent), 0 0 13px color-mix(in srgb, var(--accent) 55%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 12%, #000 18%, transparent 32%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 12%, #000 18%, transparent 32%);
  -webkit-mask-size: 320% 100%; mask-size: 320% 100%;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  animation: hlMask 3.6s linear infinite;
}
.hero__h1--glow span { color: transparent; }
.hero__lead { margin: 30px 0 0; max-width: 480px; font-size: 16px; line-height: 1.6; color: var(--fg2); }
.hero__cta { display: flex; align-items: center; gap: 18px; margin-top: 38px; flex-wrap: wrap; }
.btn-solid { font-family: "Space Mono", monospace; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; color: var(--bg); background: var(--fg); padding: 15px 26px; border: none; cursor: pointer; transition: background .2s, color .2s; }
.btn-solid:hover { background: var(--accent); color: var(--on-accent); }
.btn-throb { position: relative; animation: ctaThrob 3.4s ease-out infinite; }
.btn-underline { font-family: "Space Mono", monospace; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; color: var(--fg); padding: 15px 4px; border-bottom: 1.5px solid var(--fg); }

/* live cost model card */
.card { background: var(--panel); color: var(--panel-fg); padding: 36px; position: relative; overflow: hidden; }
.card__top { display: flex; justify-content: space-between; align-items: center; font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--panel-muted); }
.card__live { display: flex; align-items: center; gap: 8px; }
.card__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--panel-accent); animation: pulseDot 1.6s ease-in-out infinite; }
.card__label { margin-top: 32px; font-family: "Space Mono", monospace; font-size: 11px; color: var(--panel-accent); letter-spacing: .1em; }
.card__figure { font-family: "Spectral", serif; font-size: 42px; line-height: 1; margin-top: 8px; font-variant-numeric: tabular-nums; }
.card__trend { margin-top: 9px; font-family: "Space Mono", monospace; font-size: 10px; color: var(--panel-accent); letter-spacing: .14em; }
.ccChart { position: relative; margin-top: 26px; }
.ccChart svg { display: block; overflow: visible; }
.ccChart .grid { stroke: var(--panel-line); }
.ccChart .grid-dash { stroke: var(--panel-muted); opacity: .6; }
.ccChart .grid-trend { stroke: var(--panel-fg); opacity: .32; }
.ccChart .curve { fill: none; stroke: var(--panel-accent); transition: stroke .3s ease, stroke-width .3s ease; }
.ccChart:hover .curve { stroke: var(--panel-fg); stroke-width: 2.6; filter: url(#ccGlow); }
.ccChart__axis { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; font-family: "Space Mono", monospace; font-size: 9px; letter-spacing: .12em; color: var(--panel-muted); }
.card__foot { margin-top: 28px; border-top: 1px solid var(--panel-line); padding-top: 18px; display: flex; justify-content: space-between; font-family: "Space Mono", monospace; font-size: 10px; color: var(--panel-muted); letter-spacing: .08em; }

.creds { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 40px; padding: 20px 0; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.creds__est { margin-left: auto; color: var(--accent); }

/* ===== SECTION HEADS ===== */
.section { border-bottom: 1px solid var(--line); }
.section--panel { background: var(--panel); color: var(--panel-fg); border-bottom: none; }
.section--band { background: var(--band); border-bottom: none; }
.head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 8px; }
.head--mb { margin-bottom: 46px; }
.head--mb-sm { margin-bottom: 22px; }
.head__no { font-family: "Space Mono", monospace; font-size: 12px; color: var(--accent); letter-spacing: .1em; }
.head__no--panel { color: var(--panel-accent); }
.head__h2 { margin: 0; font-family: "Spectral", serif; font-weight: 400; font-size: 42px; letter-spacing: -.01em; }
.head__note { margin-left: auto; font-size: 13px; max-width: 320px; color: var(--fg3); line-height: 1.5; }
.head__note--panel { color: var(--panel-muted); }

/* ===== SERVICES ACCORDION ===== */
.acc { margin-top: 46px; border-top: 1px solid var(--line); }
.acc__row { border-bottom: 1px solid var(--line); }
.acc__head { padding: 30px 24px; display: grid; grid-template-columns: 56px 300px 1fr 34px; gap: 28px; align-items: center; cursor: pointer; transition: background .2s, padding .25s; }
.acc__head:hover { background: var(--surface); padding-left: 34px; }
.acc__no { font-family: "Space Mono", monospace; font-size: 13px; color: var(--muted); }
.acc__title { margin: 0; font-family: "Spectral", serif; font-weight: 400; font-size: 26px; }
.acc__desc { margin: 0; font-size: 14.5px; line-height: 1.55; color: var(--fg2); }
.acc__arrow { font-family: "Space Mono", monospace; font-size: 24px; color: var(--accent); text-align: right; line-height: 1; transition: transform .3s ease; }
.acc__arrow.is-open { transform: rotate(45deg); }
.acc__detail { overflow: hidden; max-height: 0; transition: max-height .4s ease; }
.acc__detailInner { padding: 0 24px 34px 84px; display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: end; }
.acc__detailInner p { margin: 0; max-width: 620px; font-size: 14.5px; line-height: 1.65; color: var(--fg3); }
.acc__cta { white-space: nowrap; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--fg); text-decoration: none; border-bottom: 1.5px solid var(--fg); padding-bottom: 3px; }

/* ===== APPROACH ===== */
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--panel-line); border: 1px solid var(--panel-line); margin-top: 48px; }
.cell { background: var(--panel); padding: 36px 30px; min-height: 230px; display: flex; flex-direction: column; justify-content: space-between; }
.cell__no { font-family: "Space Mono", monospace; font-size: 13px; color: var(--panel-accent); }
.cell__h3 { margin: 0; font-family: "Spectral", serif; font-weight: 400; font-size: 24px; }
.cell__p { margin: 12px 0 0; font-size: 13.5px; line-height: 1.55; color: var(--panel-muted); }

/* ===== SECTORS ===== */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.sector { border: 1px solid var(--line); padding: 30px; background: var(--surface); transition: transform .2s, box-shadow .2s, border-color .2s; }
.sector:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -24px rgba(0,0,0,.4); border-color: var(--accent); }
.sector__no { font-family: "Space Mono", monospace; font-size: 11px; color: var(--accent); letter-spacing: .12em; }
.sector__h3 { margin: 14px 0 8px; font-family: "Spectral", serif; font-weight: 400; font-size: 24px; }
.sector__p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--fg3); }

/* ===== CONTACT ===== */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.contact__lead { margin: 0; max-width: 400px; font-size: 15px; line-height: 1.6; color: var(--fg2); }
.contact__rows { margin-top: 40px; display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.contact__row { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--line); gap: 16px; }
.contact__k { font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.contact__v { font-family: "Spectral", serif; font-size: 18px; text-align: right; }
.formcard { background: var(--surface); border: 1px solid var(--line); padding: 38px; }
.form { display: flex; flex-direction: column; gap: 20px; }
.field label { display: block; font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.field input, .field textarea { width: 100%; border: none; border-bottom: 1.5px solid var(--line); background: transparent; padding: 8px 0; font-size: 16px; color: var(--fg); outline: none; transition: border-color .2s; }
.field textarea { resize: none; }
.field input:focus, .field textarea:focus { border-color: var(--accent); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #c0563f; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.turnstile { min-height: 65px; }
.form__submit { margin-top: 8px; align-self: flex-start; padding: 15px 30px; }
.form__submit:disabled { opacity: .6; cursor: default; }
.form__msg { margin: 0; font-size: 13px; color: var(--muted); min-height: 1em; }
.form__msg.is-error { color: #c0563f; }
.formdone { min-height: 332px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; animation: ccFade .4s ease both; }
.formdone__tick { width: 46px; height: 46px; border: 1.5px solid var(--accent); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 22px; }
.formdone h3 { margin: 24px 0 0; font-family: "Spectral", serif; font-weight: 400; font-size: 28px; }
.formdone p { margin: 12px 0 0; font-size: 15px; line-height: 1.6; color: var(--fg2); max-width: 320px; }
.formdone__again { margin-top: 26px; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--fg); background: transparent; border: none; padding: 0; cursor: pointer; border-bottom: 1.5px solid var(--fg); }

/* ===== FOOTER ===== */
.footer { background: var(--panel); color: var(--panel-fg); }
.footer__top { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 32px; border-bottom: 1px solid var(--panel-line); padding-bottom: 38px; }
.brand__box--panel { border-color: var(--panel-fg); }
.brand__sub--panel { color: var(--panel-accent); font-size: 8px; letter-spacing: .26em; margin-top: 4px; }
.footer__desc { margin: 22px 0 0; max-width: 340px; font-size: 13.5px; line-height: 1.6; color: var(--panel-muted); }
.footer__cols { display: flex; gap: 64px; }
.footer__col { display: flex; flex-direction: column; gap: 12px; font-size: 13px; }
.footer__ck { font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--panel-accent); }
.footer__col a { color: var(--panel-fg); text-decoration: none; opacity: .82; }
.footer__col a:hover { opacity: 1; }
.footer__formlink { border-bottom: 1.5px solid var(--panel-accent); align-self: flex-start; padding-bottom: 2px; }
.footer__muted { color: var(--panel-fg); opacity: .82; }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; padding-top: 24px; font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.footer__legal { display: flex; align-items: center; gap: 22px; }
.footer__legal button, .footer__legal a { background: transparent; border: none; padding: 0; cursor: pointer; font-family: "Space Mono", monospace; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); text-decoration: none; transition: color .2s; }
.footer__legal button:hover, .footer__legal a:hover { color: var(--accent); }

/* ===== LEGAL DOCS ===== */
.legaldoc { min-height: 100vh; background: var(--bg); color: var(--fg); font-family: "Archivo", system-ui, -apple-system, Segoe UI, Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
.legaldoc__wrap { max-width: 780px; margin: 0 auto; padding: 54px 28px 72px; }
.legaldoc__back { display: inline-flex; margin-bottom: 42px; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent); }
.legaldoc__eyebrow { margin: 0 0 12px; font-family: "Space Mono", monospace; font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.legaldoc h1 { margin: 0; font-family: "Spectral", serif; font-weight: 400; font-size: clamp(42px, 9vw, 66px); line-height: 1; letter-spacing: -.01em; }
.legaldoc__date { margin: 16px 0 36px; color: var(--muted); font-size: 14px; }
.legaldoc section { border-top: 1px solid var(--line); padding: 24px 0; }
.legaldoc h2 { margin: 0 0 10px; font-family: "Spectral", serif; font-weight: 400; font-size: 25px; }
.legaldoc p { margin: 0; color: var(--fg2); font-size: 15px; line-height: 1.7; }
.legaldoc p + p { margin-top: 10px; }
.legaldoc a { color: var(--accent); }

/* ===== KEYFRAMES ===== */
@keyframes hlMask { 0% { -webkit-mask-position: 128% 0; mask-position: 128% 0; } 100% { -webkit-mask-position: -28% 0; mask-position: -28% 0; } }
@keyframes ctaThrob { 0%,46% { box-shadow: 0 0 0 0 rgba(0,0,0,0); } 57% { box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 30%, transparent); } 71% { box-shadow: 0 0 0 14px color-mix(in srgb, var(--accent) 0%, transparent); } 100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); } }
@keyframes pulseDot { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .3; transform: scale(.62); } }
@keyframes ccFade { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

/* ===== RESPONSIVE ===== */
@media (max-width: 1000px) {
  .wrap, .nav__inner { padding-left: 28px; padding-right: 28px; }
  .wrap--pad { padding: 72px 28px; }
  .hero__grid { grid-template-columns: 1fr; gap: 44px; min-height: 0; padding: 52px 0; }
  .hero__h1, .hero__h1--glow { font-size: clamp(44px, 8vw, 60px); }
  .grid4 { grid-template-columns: repeat(2, 1fr); }
  .contact { grid-template-columns: 1fr; gap: 44px; }
  .head__note { max-width: 280px; }
}
@media (max-width: 720px) {
  .nav__links a[data-nav] { display: none; }
  .wrap--pad { padding: 60px 22px; }
  .wrap, .nav__inner { padding-left: 22px; padding-right: 22px; }
  .hero__h1, .hero__h1--glow { font-size: clamp(38px, 11vw, 52px); }
  .head { flex-wrap: wrap; }
  .head__note { margin-left: 0; flex-basis: 100%; max-width: none; margin-top: 6px; }
  .acc__head { grid-template-columns: 40px 1fr 30px; gap: 16px; padding: 24px 8px; }
  .acc__head:hover { padding-left: 12px; }
  .acc__desc { display: none; }
  .acc__detailInner { padding: 0 8px 28px 48px; grid-template-columns: 1fr; gap: 20px; align-items: start; }
  .grid3 { grid-template-columns: 1fr; }
  .grid4 { grid-template-columns: 1fr; }
  .card { padding: 28px; }
  .footer__top { flex-direction: column; }
  .footer__cols { gap: 44px; }
  .creds { gap: 18px; }
}
@media (max-width: 440px) {
  .hero__h1, .hero__h1--glow { font-size: 34px; }
  .head__h2 { font-size: 34px; }
  .formcard { padding: 24px; }
  .card__figure { font-size: 34px; }
  .contact__v { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .hero__h1--glow, .btn-throb, .card__dot { animation: none !important; }
  #ccCurveLine { stroke-dashoffset: 0 !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}