:root {
  --ink: #172521;
  --muted: #5d6c67;
  --paper: #f7faf8;
  --white: #ffffff;
  --line: #dbe6e2;
  --accent: #08757a;
  --accent-dark: #07575b;
  --mist: #e8f3ef;
  --sky: #dff5fb;
  --success: #dff4e6;
  --success-ink: #16492d;
  --sun: #f5c35a;
  --shadow: 0 24px 70px rgba(21, 42, 36, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 4px clamp(18px, 5vw, 56px);
  background: rgba(247, 250, 248, 0.94);
  border-bottom: 1px solid rgba(219, 230, 226, 0.9);
  backdrop-filter: blur(14px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}
.brand-logo {
  display: block;
  width: 104px;
  height: 52px;
  flex: 0 0 auto;
  border-radius: 6px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(21, 42, 36, 0.14);
}
.brand-name {
  max-width: 280px;
  font-size: 0.98rem;
  line-height: 1.08;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--white);
  background: var(--accent-dark);
  font-size: 0.88rem;
  letter-spacing: 0;
}
nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 18px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 700;
}
nav a { text-decoration: none; }
nav a:hover, nav a:focus-visible { color: var(--accent-dark); }

.hero {
  position: relative;
  display: grid;
  min-height: min(660px, calc(88svh - 72px));
  overflow: hidden;
  background: linear-gradient(90deg, rgba(231, 248, 252, 0.96), rgba(231, 248, 252, 0.82), rgba(231, 248, 252, 0.48)), url("assets/window-cleaning-hero.svg") center / cover no-repeat;
}
.hero::after {
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  content: "";
  background: linear-gradient(0deg, rgba(247, 250, 248, 0.98), rgba(247, 250, 248, 0));
}
.hero-copy {
  position: relative;
  z-index: 1;
  width: min(800px, 100%);
  padding: clamp(56px, 8vw, 100px) clamp(20px, 6vw, 72px);
  color: var(--ink);
  animation: riseIn 700ms ease both;
}
.eyebrow, .section-kicker {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 18px;
  max-width: 12ch;
  font-size: clamp(2.8rem, 8vw, 6.4rem);
  line-height: 0.96;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 16px;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.04;
  letter-spacing: 0;
}
h3 { margin-bottom: 8px; font-size: 1.2rem; line-height: 1.2; }
.hero-lede {
  max-width: 650px;
  color: #405c56;
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}
.hero-note {
  max-width: 590px;
  margin: 16px 0 0;
  color: #405c56;
  font-weight: 750;
}
.hero-actions, .form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font: inherit;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}
.button.primary { color: var(--white); background: var(--accent-dark); }
.button.primary:hover, .button.primary:focus-visible { background: #043f42; }
.button.secondary { color: var(--accent-dark); border-color: rgba(8,99,103,0.3); background: rgba(255,255,255,0.64); }

.strip, .section { padding: clamp(44px, 7vw, 86px) clamp(20px, 6vw, 72px); }
.strip {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(250px, 0.8fr);
  gap: clamp(24px, 6vw, 88px);
  align-items: end;
  background: var(--white);
}
.intro h2 { max-width: 900px; }
.intro p:last-child, .area p, .contact p, .text-stack, .service-list p, .note, .quote-intro p, .faq-list p { color: var(--muted); }
.two-column, .area, .contact {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 1.08fr);
  gap: clamp(24px, 7vw, 96px);
}
.text-stack, .intro p:last-child, .area p, .contact p { font-size: 1.08rem; }
.about-content {
  display: grid;
  gap: 22px;
}
.about-photo {
  margin: 0;
  max-width: 420px;
}
.about-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 18px 48px rgba(21, 42, 36, 0.14);
}
.services, .quote-section, .faq, .contact { background: var(--white); }
.services-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(20px, 4vw, 48px);
  align-items: center;
}
.services-overview .section-heading { margin-bottom: 0; }
.services > .services-overview,
#about > .services-overview { max-width: 1460px; }

.completed-clean {
  background: var(--mist);
}
.completed-clean-inner {
  display: grid;
  grid-template-columns: minmax(0, 760px);
  justify-content: center;
  max-width: 1280px;
  margin: 0 auto;
}
.completed-clean-figure {
  display: grid;
  gap: 12px;
  margin: 0;
}
.completed-clean-photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 18px 48px rgba(21, 42, 36, 0.14);
}
.completed-clean-figure figcaption {
  display: grid;
  gap: 2px;
  color: var(--muted);
  font-size: 0.92rem;
}
.completed-clean-figure figcaption strong {
  color: var(--ink);
  font-size: 0.98rem;
}
.completed-clean-copy {
  max-width: 560px;
}
.completed-clean-copy h2 {
  margin-top: 0;
}
.completed-clean-copy p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}
.clean-window-placeholder {
  display: grid;
  gap: 10px;
  margin: 0;
}
.clean-window-visual {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  border: 1px dashed #a9c9c3;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(223, 245, 251, 0.96), rgba(255, 255, 255, 0.94)), linear-gradient(90deg, transparent 49%, rgba(7, 87, 91, 0.14) 49% 51%, transparent 51%);
  box-shadow: 0 18px 48px rgba(21, 42, 36, 0.1);
}
.clean-window-visual::before,
.clean-window-visual::after {
  position: absolute;
  content: "";
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}
.clean-window-visual::before {
  top: 42px;
  right: 58px;
  width: 72px;
  height: 72px;
}
.clean-window-visual::after {
  right: 28px;
  bottom: 32px;
  width: 170px;
  height: 16px;
}
.window-shine {
  position: absolute;
  top: -20%;
  left: 18%;
  width: 18%;
  height: 140%;
  background: rgba(255, 255, 255, 0.5);
  transform: rotate(16deg);
}
.window-frame {
  position: absolute;
  background: rgba(7, 87, 91, 0.18);
}
.window-frame.vertical {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
}
.window-frame.horizontal {
  right: 0;
  bottom: 42%;
  left: 0;
  height: 2px;
}
.clean-window-placeholder figcaption {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 750;
}
.section-heading { max-width: 820px; margin-bottom: 36px; }
.section-heading p { color: var(--muted); }
.service-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.service-list article { padding: 28px 24px; border-right: 1px solid var(--line); }
.service-list article:last-child { border-right: 0; }
.service-list span { display: inline-block; margin-bottom: 36px; color: var(--accent-dark); font-weight: 900; }

.process { background: linear-gradient(180deg, var(--paper), var(--mist)); }
.step-list {
  counter-reset: booking-step;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  max-width: 1120px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.step-list li {
  counter-increment: booking-step;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  grid-template-areas:
    "number title"
    "number description";
  gap: 5px 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.step-list li::before {
  grid-area: number;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--white);
  background: var(--accent-dark);
  content: counter(booking-step);
  font-size: 1.2rem;
  font-weight: 900;
}
.step-list strong {
  grid-area: title;
  font-size: 1.15rem;
}
.step-list span {
  grid-area: description;
  color: var(--muted);
}

.quote-section {
  display: grid;
  grid-template-columns: minmax(250px, 0.35fr) minmax(0, 1.65fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}
.quote-intro { position: sticky; top: 104px; }
.confirmation {
  display: grid;
  gap: 6px;
  margin-top: 24px;
  padding: 16px;
  border: 1px solid rgba(22,73,45,0.2);
  border-radius: 8px;
  color: var(--success-ink);
  background: var(--success);
}
.confirmation[hidden] { display: none; }
.confirmation.is-complete {
  width: min(760px, 100%);
  min-height: 210px;
  align-content: center;
  gap: 12px;
  margin: 0;
  padding: clamp(28px, 7vw, 52px);
  border: 2px solid var(--success-ink);
  box-shadow: 0 18px 44px rgba(21, 42, 36, 0.12);
}
.confirmation.is-complete strong {
  font-size: clamp(1.5rem, 5vw, 2.35rem);
  line-height: 1.15;
}
.confirmation.is-complete span {
  max-width: 62ch;
  font-size: clamp(1rem, 2.5vw, 1.12rem);
  line-height: 1.6;
}
.booking-complete .quote-section {
  min-height: 58svh;
}
.booking-complete .quote-intro {
  position: static;
  width: min(1120px, calc(100% - clamp(24px, 4vw, 72px)));
  margin-left: clamp(24px, 4vw, 72px);
}
.booking-complete .quote-form,
.booking-complete .desktop-action-bar,
.booking-complete .mobile-action-bar {
  display: none !important;
}
@media (max-width: 640px) {
  .booking-complete .quote-section {
    min-height: calc(100svh - 120px);
    padding-top: 28px;
  }
  .booking-complete .quote-intro {
    width: 100%;
    margin-left: 0;
  }
  .confirmation.is-complete {
    min-height: 280px;
  }
}
.quote-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: clamp(18px, 4vw, 28px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.quote-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-top: 4px;
}
.quote-details[hidden], .booking-date-choice[hidden] { display: none; }
#quote-next-hint, #booking-next-hint {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}
.fixed-price-choice, .booking-date-choice {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(7, 87, 91, 0.22);
  border-radius: 8px;
  background: linear-gradient(135deg, #e8f7f5, #f7faf8);
}
.fixed-price-choice legend, .booking-date-choice legend {
  padding: 0 8px;
  color: var(--accent-dark);
  font-size: 1.05rem;
  font-weight: 900;
}
.fixed-price-choice p, .booking-date-choice p {
  margin: 0;
  color: var(--muted);
}
.price-builder {
  gap: 16px;
}
.quote-builder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 18px;
  align-items: stretch;
}
.price-builder-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}
.price-builder-intro {
  max-width: 560px;
  color: #405c56;
  font-size: 1.02rem;
  font-weight: 800;
}
.quote-total {
  display: grid;
  gap: 2px;
  padding: 16px;
  border: 1px solid rgba(7, 87, 91, 0.2);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 28px rgba(21, 42, 36, 0.08);
}
.quote-total[hidden] { display: none; }
.quote-total span {
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}
.quote-total strong {
  color: var(--ink);
  font-size: clamp(2.1rem, 7vw, 3rem);
  line-height: 1;
}
.quote-total.is-in-progress strong {
  font-size: clamp(1.55rem, 4vw, 2.05rem);
}
.quote-total small {
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 750;
}
.counter-list {
  display: grid;
  gap: 12px;
}
.counter-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}
.counter-card strong {
  display: block;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.25;
}
.counter-card span {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}
.counter-control {
  display: grid;
  grid-template-columns: 42px 50px 42px;
  gap: 8px;
  align-items: center;
  flex: 0 0 auto;
}
.counter-control button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(7, 87, 91, 0.25);
  border-radius: 50%;
  color: var(--white);
  background: var(--accent-dark);
  font: inherit;
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, opacity 160ms ease;
}
.counter-control button:hover,
.counter-control button:focus-visible {
  background: #043f42;
  transform: translateY(-1px);
}
.counter-control button:disabled {
  opacity: 0.32;
  cursor: not-allowed;
  transform: none;
}
.counter-control output {
  display: grid;
  place-items: center;
  min-height: 42px;
  border-radius: 8px;
  color: var(--accent-dark);
  background: var(--mist);
  font-size: 1.2rem;
  font-weight: 900;
}
.extra-choice {
  display: grid;
  gap: 9px;
  padding-top: 2px;
}
.extra-choice strong {
  color: var(--ink);
  line-height: 1.25;
}
.addon-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.addon-options button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 54px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
  font-weight: 850;
  text-align: left;
  cursor: pointer;
}
.addon-options button span {
  color: var(--accent-dark);
  font-weight: 900;
  white-space: nowrap;
}
.addon-options button.is-selected,
.addon-options button[aria-pressed="true"] {
  border-color: var(--accent-dark);
  background: var(--mist);
  box-shadow: inset 0 0 0 1px rgba(7, 87, 91, 0.18);
}
.window-set-preview {
  display: grid;
  gap: 12px;
  align-content: space-between;
  min-height: 100%;
  padding: 16px;
  border: 1px solid rgba(7, 87, 91, 0.16);
  border-radius: 8px;
  background: linear-gradient(180deg, #dff5fb, #f7faf8 72%);
  box-shadow: 0 16px 34px rgba(21, 42, 36, 0.08);
}
.preview-house {
  display: grid;
  align-content: end;
  width: min(100%, 330px);
  min-height: 292px;
  margin: 0 auto;
}
.preview-roof {
  width: 82%;
  height: 46px;
  margin: 0 auto -1px;
  background: #07575b;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.preview-wall {
  position: relative;
  display: grid;
  align-items: start;
  min-height: 238px;
  padding: 20px 18px 58px;
  border: 1px solid rgba(7, 87, 91, 0.18);
  border-radius: 8px;
  background: linear-gradient(180deg, #f6ffff, #e8f3ef);
}
.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(100%, 240px);
  margin: 0 auto;
}
.preview-window-set {
  position: relative;
  aspect-ratio: 1 / 0.8;
  overflow: hidden;
  border: 3px solid var(--white);
  border-radius: 6px;
  background: linear-gradient(135deg, #9edbe7 0%, #f7ffff 62%, #c4edf3 100%);
  box-shadow: inset 0 0 0 1px rgba(7, 87, 91, 0.2), 0 8px 16px rgba(21, 42, 36, 0.1);
}
.preview-window-set::before,
.preview-window-set::after {
  position: absolute;
  content: "";
  background: rgba(255, 255, 255, 0.72);
}
.preview-window-set::before {
  inset: 0 auto 0 50%;
  width: 2px;
}
.preview-window-set::after {
  inset: 50% 0 auto;
  height: 2px;
}
.preview-door {
  position: absolute;
  right: 24px;
  bottom: 0;
  width: 44px;
  height: 78px;
  border: 3px solid var(--white);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  background: #07575b;
}
.preview-door::after {
  position: absolute;
  top: 38px;
  right: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sun);
  content: "";
}
#window-preview-caption {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
  text-align: center;
}
.conditional-options {
  display: grid;
  gap: 12px;
}
.conditional-options[hidden] { display: none; }
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  font-weight: 850;
}
.checkbox-option:has(input:checked) {
  border-color: var(--accent-dark);
  background: var(--mist);
}
.checkbox-option input {
  width: 18px;
  height: 18px;
  min-height: 0;
  padding: 0;
  accent-color: var(--accent-dark);
}
label { display: grid; gap: 7px; color: var(--ink); font-weight: 800; }
.optional { color: var(--muted); font-size: 0.9rem; font-weight: 700; }
input, select, textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid #c9d9d3;
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: 3px solid rgba(15,139,141,0.16); }
.wide { grid-column: 1 / -1; }
.privacy { margin: 0; color: var(--muted); font-size: 0.94rem; }
.booking-reassurance { font-size: 1.04rem; line-height: 1.55; }
#form-status { margin: 0; color: var(--muted); font-weight: 700; }

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.faq-list article {
  padding: 24px;
  background: var(--white);
}
address {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 22px;
  border-left: 5px solid var(--sun);
  background: var(--mist);
  font-style: normal;
}
mark { padding: 2px 5px; border-radius: 4px; color: var(--ink); background: rgba(245,195,90,0.55); }
.desktop-action-bar {
  position: fixed;
  right: clamp(20px, 4vw, 48px);
  bottom: 20px;
  z-index: 30;
  width: min(420px, calc(100vw - 40px));
}
.desktop-action-bar a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 66px;
  padding: 12px 14px 12px 18px;
  border: 1px solid rgba(7, 87, 91, 0.18);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 14px 38px rgba(21, 42, 36, 0.18);
  text-decoration: none;
  backdrop-filter: blur(12px);
}
.desktop-action-copy {
  display: grid;
  gap: 1px;
}
.desktop-action-copy strong {
  color: var(--accent-dark);
  font-size: 1rem;
  line-height: 1.18;
}
.desktop-action-copy small {
  color: var(--muted);
  font-weight: 800;
}
.desktop-action-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 13px;
  border-radius: 8px;
  color: var(--white);
  background: var(--accent-dark);
  font-weight: 900;
  white-space: nowrap;
}
.desktop-action-bar.is-progress .desktop-action-cta,
.desktop-action-bar.is-ready .desktop-action-cta {
  background: #043f42;
}
.mobile-action-bar { display: none; }
footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 6vw, 72px);
  color: rgba(255,255,255,0.78);
  background: var(--ink);
}
footer p { margin: 0; }
footer a { color: var(--white); font-weight: 800; text-decoration: none; }

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
@media (min-width: 901px) {
  .quote-form {
    justify-self: start;
    width: calc(100% - clamp(80px, 15vw, 240px));
  }
}
@media (max-width: 900px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .hero { min-height: 560px; }
  .strip, .two-column, .quote-section, .area, .contact { grid-template-columns: 1fr; }
  .services-overview { grid-template-columns: 1fr; }
  .clean-window-placeholder { max-width: 520px; }
  .completed-clean-inner { grid-template-columns: 1fr; }
  .completed-clean-figure { max-width: 640px; }
  .quote-intro { position: static; }
  .quote-builder-layout { grid-template-columns: 1fr; }
  .window-set-preview { order: -1; }
  .service-list, .step-list, .faq-list { grid-template-columns: 1fr; }
  .service-list article { border-right: 0; border-bottom: 1px solid var(--line); }
  .service-list article:last-child { border-bottom: 0; }
}
@media (max-width: 640px) {
  body { padding-bottom: 78px; }
  .site-header { position: sticky; min-height: 58px; }
  .brand { align-items: center; gap: 9px; }
  .brand-logo { width: 82px; height: 42px; }
  .brand-name { max-width: 178px; font-size: 0.88rem; }
  nav { justify-content: flex-start; width: 100%; }
  .hero { min-height: 480px; }
  .hero-copy { padding-top: 46px; padding-bottom: 58px; }
  h1 { font-size: clamp(2.35rem, 14vw, 4rem); max-width: 12ch; }
  h2 { font-size: clamp(1.85rem, 10vw, 2.8rem); }
  .clean-window-visual { min-height: 220px; }
  .quote-form, .quote-details { grid-template-columns: 1fr; }
  .quote-form { box-shadow: none; }
  .fixed-price-choice, .booking-date-choice { padding: 14px; }
  .window-set-preview { padding: 12px; }
  .preview-house { min-height: 250px; }
  .preview-wall { min-height: 204px; padding: 16px 14px 52px; }
  .preview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; width: min(100%, 190px); }
  .preview-door { right: 18px; width: 38px; height: 68px; }
  .counter-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .counter-control {
    grid-template-columns: 40px minmax(58px, 1fr) 40px;
  }
  .counter-control button {
    width: 40px;
    height: 40px;
  }
  .addon-options { grid-template-columns: 1fr; }
  .checkbox-option {
    display: grid;
    justify-items: center;
    gap: 5px;
    padding: 10px 12px;
    text-align: center;
  }
  .checkbox-option input {
    order: 2;
    width: 12px;
    height: 12px;
  }
  .button { width: 100%; }
  .desktop-action-bar { display: none; }
  .mobile-action-bar {
    position: fixed;
    right: 12px;
    bottom: 12px;
    left: 12px;
    z-index: 30;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    padding: 8px;
    border: 1px solid rgba(7,87,91,0.18);
    border-radius: 8px;
    background: rgba(255,255,255,0.95);
    box-shadow: 0 12px 36px rgba(21,42,36,0.18);
    backdrop-filter: blur(12px);
  }
  .mobile-action-bar.is-single-action { grid-template-columns: 1fr; }
  .mobile-action-bar a {
    display: grid;
    place-items: center;
    min-height: 52px;
    border-radius: 8px;
    color: var(--white);
    background: var(--accent-dark);
    font-weight: 850;
    line-height: 1.15;
    text-decoration: none;
  }
  .mobile-action-bar a small {
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    opacity: 0.9;
  }
  .mobile-action-bar a:first-child { color: var(--accent-dark); background: var(--mist); }
  .mobile-action-bar.is-single-action a:first-child { color: var(--white); background: var(--accent-dark); }
}