/* ============================================================
   BOB CONCRETE FLOOR WORKS — design system
   Flat. Bordered. Gold + black. No gradients, no shadows.
   ============================================================ */

:root {
  --gold: #C59622;
  --logo-gold: #B08B30;
  --ink: #0A0D0A;
  --white: #FFFFFF;
  --grey: #E6E6E6;
  --grey-soft: #F5F5F4;
  --mid-grey: #B9B9B9;
  --whatsapp: #25D366;

  --line: 2px solid var(--ink);
  --line-thick: 3px solid var(--ink);

  --font-display: "Archivo", "Arial Narrow", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  border-top: 6px solid var(--gold);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html, body { overflow-x: clip; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
ul, ol { list-style: none; }

::selection { background: var(--gold); color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.wrap {
  width: min(var(--wrap), 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100%;
  z-index: 200;
  background: var(--ink);
  color: var(--white);
  padding: .75rem 1.25rem;
  font-weight: 600;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ---------- Type helpers ---------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.eyebrow-sq {
  width: .85em;
  height: .85em;
  background: var(--gold);
  flex: none;
}
.eyebrow-gold { color: var(--gold); }
.eyebrow-gold .eyebrow-sq { background: var(--gold); }
.section-dark .eyebrow-sq { background: var(--gold); }

.section-title,
.page-title,
.hero-title,
.cta-title {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  line-height: .95;
  letter-spacing: -0.01em;
}

.hero-title { font-size: clamp(2.6rem, 7.2vw, 5.4rem); }
.hero-title em { font-style: normal; color: var(--gold); }

.page-title { font-size: clamp(2.4rem, 6vw, 4.4rem); }
.section-title { font-size: clamp(2rem, 4.6vw, 3.4rem); }
.cta-title { font-size: clamp(2.4rem, 6vw, 4.6rem); color: var(--gold); }

.page-lead, .hero-lead {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  max-width: 34rem;
  margin-top: 1.25rem;
}

.inline-link { color: var(--ink); font-weight: 600; text-decoration-thickness: 2px; text-underline-offset: 3px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .95rem 1.75rem;
  min-height: 48px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: .92rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-decoration: none;
  border: var(--line);
  white-space: nowrap;
  transition: background-color .15s ease, color .15s ease;
}
.btn-icon { flex: none; }
.btn-gold { background: var(--gold); color: var(--ink); border-color: var(--ink); }
.btn-gold:hover { background: var(--ink); color: var(--gold); }
.btn-ink { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn-ink:hover { background: var(--white); color: var(--ink); }
.btn-white { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-white:hover { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.btn-outline-gold { background: transparent; color: var(--gold); border-color: var(--gold); }
.btn-outline-gold:hover { background: var(--gold); color: var(--ink); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}
.brand-logo {
  display: block;
  height: 52px;
  width: auto;
  max-width: 64vw;
  object-fit: contain;
}
.brand-logo-footer {
  height: auto;
  width: auto;
  max-width: 240px;
  max-height: 64px;
  background: var(--white);
  padding: .8rem 1.1rem;
  border: 3px solid var(--gold);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.site-nav > a:not(.btn) {
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  padding: .35rem 0;
  border-bottom: 3px solid transparent;
}
.site-nav > a:not(.btn):hover { border-bottom-color: var(--gold); }
.site-nav > a[aria-current="page"] { border-bottom-color: var(--ink); }
.nav-cta { padding: .7rem 1.25rem; min-height: 44px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 48px;
  padding: 10px;
  border: var(--line);
  background: var(--white);
}
.nav-toggle-bar {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Flash ---------- */
.flash {
  background: var(--gold);
  border-bottom: var(--line);
}
.flash-inner {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding-block: .9rem;
}
.flash-mark {
  width: 14px;
  height: 14px;
  background: var(--ink);
  flex: none;
}
.flash p { font-weight: 600; flex: 1; }
.flash-close {
  font-size: 1.6rem;
  line-height: 1;
  padding: .25rem .5rem;
}
.flash-close:hover { color: var(--white); }

/* ---------- Hero ---------- */
.hero { padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(3rem, 7vw, 5.5rem); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2rem;
}
.hero-figure {
  border: var(--line-thick);
}
.hero-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.hero-figure figcaption {
  border-top: var(--line-thick);
  padding: .8rem 1.1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- Marquee ---------- */
.marquee {
  background: var(--ink);
  border-block: var(--line);
  overflow: hidden;
  padding-block: .9rem;
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  width: max-content;
  animation: marquee 26s linear infinite;
}
.marquee-item {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--white);
  white-space: nowrap;
}
.marquee-sq {
  width: .65rem;
  height: .65rem;
  background: var(--gold);
  flex: none;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-dark { background: var(--ink); color: var(--white); }
.section-grey { background: var(--grey-soft); }
.section-gold { background: var(--gold); }

.section-head { margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-more { margin-top: 2.5rem; }

/* ---------- Service index (home) ---------- */
.service-index { border-top: var(--line-thick); }
.service-index > li { border-bottom: var(--line-thick); }
.service-row {
  display: grid;
  grid-template-columns: 5rem 1fr 1.2fr 3rem;
  align-items: center;
  gap: 1.5rem;
  padding: 1.6rem .5rem;
  text-decoration: none;
  transition: background-color .15s ease, color .15s ease;
}
.service-row:hover, .service-row:focus-visible {
  background: var(--ink);
  color: var(--white);
}
.service-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  color: var(--gold);
}
.service-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.4vw, 2.3rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.service-short { font-size: .98rem; opacity: .85; }
.service-arrow {
  font-size: 1.8rem;
  font-weight: 700;
  justify-self: end;
  transition: transform .15s ease;
}
.service-row:hover .service-arrow { transform: translateX(.4rem); color: var(--gold); }

/* ---------- Work grid ---------- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.work-card {
  display: block;
  border: var(--line);
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
}
.work-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-bottom: var(--line);
}
.work-meta {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding: 1rem 1.1rem;
  transition: background-color .15s ease, color .15s ease;
}
.work-card:hover .work-meta { background: var(--gold); color: var(--ink); }
.work-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .02em;
}
.work-loc { font-size: .85rem; opacity: .75; }

/* ---------- Promise (gold band) ---------- */
.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: var(--line-thick);
}
.promise {
  padding: clamp(1.5rem, 3vw, 2.5rem);
}
.promise + .promise { border-left: var(--line-thick); }
.promise-num {
  display: inline-grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  background: var(--ink);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  margin-bottom: 1.1rem;
}
.promise h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.promise p { font-size: .95rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--ink);
  border-top: 6px solid var(--gold);
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}
.cta-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-actions { display: flex; gap: .9rem; flex-wrap: wrap; }

/* ---------- Page hero ---------- */
.page-hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: var(--line);
}
.notfound { border-bottom: none; min-height: 50vh; }
.notfound .hero-actions { margin-top: 2rem; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about-lead {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  line-height: 1.3;
  margin-bottom: 1.4rem;
}
.about-copy p + p { margin-top: 1rem; }

.fact-panel {
  border: var(--line-thick);
  padding: 1.75rem;
}
.fact-heading {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding-bottom: 1rem;
  border-bottom: var(--line);
  margin-bottom: 1rem;
}
.fact { padding: .7rem 0; }
.fact + .fact { border-top: 1px solid var(--grey); }
.fact dt {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--logo-gold);
}
.fact dd { font-weight: 600; margin-top: .15rem; }
.fact a { text-decoration-thickness: 2px; text-underline-offset: 3px; }

.about-figure {
  grid-column: 1 / -1;
  border: var(--line-thick);
}
.about-figure img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}
.about-figure figcaption {
  border-top: var(--line-thick);
  padding: .8rem 1.1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- Steps ---------- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.step {
  border: var(--line);
  background: var(--white);
  padding: 1.5rem;
}
.step-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: .8rem;
}
.step h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  text-transform: uppercase;
  margin-bottom: .4rem;
}
.step p { font-size: .92rem; }

/* ---------- Service detail ---------- */
.service-detail-list { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1.15fr .95fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  border: var(--line-thick);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  scroll-margin-top: 110px;
  align-items: start;
}
.service-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: var(--line);
}
.service-detail-head .service-num {
  display: block;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  margin-bottom: .5rem;
}
.service-detail-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  text-transform: uppercase;
  line-height: 1;
}
.service-desc { font-size: 1.05rem; margin-bottom: 1.25rem; }
.service-points { margin-bottom: 1.75rem; }
.service-points li {
  position: relative;
  padding: .55rem 0 .55rem 1.6rem;
  border-bottom: 1px solid var(--grey);
  font-weight: 500;
}
.service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: .7rem;
  height: .7rem;
  background: var(--gold);
}
.service-detail-body .btn { align-self: start; }

/* ---------- Gallery filters ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2rem;
}
.filter-btn {
  padding: .6rem 1.2rem;
  border: var(--line);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: background-color .15s ease, color .15s ease;
}
.filter-btn:hover { background: var(--grey); }
.filter-btn.is-active { background: var(--ink); color: var(--white); }
.work-card.is-hidden { display: none; }

/* ---------- Forms ---------- */
.form {
  border: var(--line-thick);
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.form-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.4rem;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.field { margin-bottom: 1.3rem; }
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.field label, .field legend {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.req { color: var(--logo-gold); }
.opt { font-weight: 500; text-transform: none; letter-spacing: 0; opacity: .6; }

.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea {
  width: 100%;
  padding: .85rem 1rem;
  min-height: 48px;
  border: var(--line);
  background: var(--white);
  font: inherit;
  color: var(--ink);
  border-radius: 0;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%230A0D0A' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.75rem;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 3px solid var(--gold);
  outline-offset: 1px;
}

.field-radio {
  border: none;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.field-radio legend { float: left; width: 100%; }
.radio-card { flex: 1; min-width: 150px; }
.radio-card input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.radio-face {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: .8rem 1rem;
  border: var(--line);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  transition: background-color .15s ease, color .15s ease;
}
.radio-card:hover .radio-face { background: var(--grey); }
.radio-card input:checked + .radio-face { background: var(--gold); border-color: var(--ink); }
.radio-card input:focus-visible + .radio-face { outline: 3px solid var(--gold); outline-offset: 2px; }

.form-note {
  margin-top: 1rem;
  font-size: .85rem;
  opacity: .75;
  text-align: center;
}

/* ---------- Quote layout ---------- */
.quote-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
.quote-side { display: grid; gap: 1.5rem; }
.side-panel {
  border: var(--line-thick);
  padding: 1.75rem;
}
.side-panel h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.next-steps { display: grid; gap: .9rem; }
.next-steps li {
  padding-left: 1.5rem;
  position: relative;
  font-size: .95rem;
}
.next-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .45rem;
  width: .7rem;
  height: .7rem;
  background: var(--gold);
}
.side-panel-gold { background: var(--gold); }
.side-phone {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  text-decoration: none;
  margin-bottom: .35rem;
}
.side-phone:hover { text-decoration: underline; text-decoration-thickness: 3px; }
.side-panel-gold p { margin-bottom: 1.25rem; font-weight: 600; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
.contact-cards { display: grid; gap: 1.25rem; }
.contact-card {
  display: block;
  border: var(--line-thick);
  padding: 1.6rem 1.75rem;
  text-decoration: none;
  transition: background-color .15s ease, color .15s ease;
}
a.contact-card:hover { background: var(--ink); color: var(--white); }
.contact-card-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--logo-gold);
  margin-bottom: .35rem;
}
a.contact-card:hover .contact-card-label { color: var(--gold); }
.contact-card-value {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  text-transform: uppercase;
}
.contact-card-note { display: block; margin-top: .35rem; font-size: .9rem; opacity: .75; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--white);
  border-top: 6px solid var(--gold);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}
.footer-tagline {
  margin-top: 1.1rem;
  font-size: .92rem;
  color: var(--grey);
  max-width: 24rem;
}
.footer-heading {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: .85rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}
.footer-col { display: flex; flex-direction: column; gap: .55rem; }
.footer-col a {
  color: var(--grey);
  text-decoration: none;
  font-size: .95rem;
  width: fit-content;
}
.footer-col a:hover { color: var(--gold); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }
.footer-col span { color: var(--grey); font-size: .95rem; }
.footer-bar { border-top: 1px solid #2A302A; }
.footer-bar-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 1.25rem;
  font-size: .82rem;
  color: var(--mid-grey);
}

/* ---------- Floating actions ---------- */
.float-actions {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.float-btn {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: var(--line);
  color: var(--white);
  transition: transform .15s ease;
}
.float-btn:hover { transform: translateY(-3px); }
.float-whatsapp { background: var(--whatsapp); }
.float-call { background: var(--ink); color: var(--gold); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-figure { max-width: 640px; }
  .about-grid, .quote-grid, .contact-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; gap: 1.25rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .work-grid { grid-template-columns: 1fr 1fr; }
  .promise-grid { grid-template-columns: 1fr; }
  .promise + .promise { border-left: none; border-top: var(--line-thick); }
}

@media (max-width: 920px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: var(--line-thick);
    padding: .5rem var(--gutter) 1.25rem;
  }
  .site-nav.is-open { display: flex; }
  .site-nav > a:not(.btn) {
    padding: .95rem .25rem;
    border-bottom: 1px solid var(--grey);
    font-size: 1.05rem;
  }
  .site-nav > a[aria-current="page"] {
    border-bottom-color: var(--grey);
    color: var(--logo-gold);
  }
  .nav-cta { margin-top: 1rem; }
}

@media (max-width: 640px) {
  .brand-logo { height: 40px; }
  .brand-logo-footer { height: auto; max-height: 48px; }
  .work-grid, .steps-grid, .field-row { grid-template-columns: 1fr; }
  .service-row {
    grid-template-columns: 3rem 1fr 2rem;
    gap: .9rem;
  }
  .service-short { grid-column: 2 / -1; }
  .service-arrow { grid-row: 1; grid-column: 3; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .hero-actions { flex-wrap: nowrap; gap: .65rem; }
  .hero-actions .btn {
    flex: 1 1 0;
    min-width: 0;
    padding-inline: .65rem;
    font-size: .78rem;
    letter-spacing: .05em;
  }
  .hero-actions .btn-tel { display: none; }
  .service-detail-body .btn {
    width: 100%;
    white-space: normal;
    text-align: center;
  }
  .footer-grid { grid-template-columns: 1fr; }
  .float-btn { width: 52px; height: 52px; }
  .float-actions { right: 1rem; bottom: 1rem; }
}

/* ---------- Motion & contrast preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}