/* ==========================================================================
   NOCTO Clean — styles.css
   Colourway drawn from the NOCTO Clean owl mark: ink black, white,
   soft neutral greys. Elegant, minimal, night-clean.
   ========================================================================== */

:root {
  --brand: #111111;
  --brand-dark: #000000;
  --ink: #101010;
  --ink-soft: #55595f;
  --line: #e4e4e2;
  --tint: #f1f1ef;
  --tint-2: #fafaf8;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.14);
  --font-display: "Montserrat", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--ink); text-decoration: none; }

.container {
  width: min(1120px, 100% - 48px);
  margin-inline: auto;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Typography ---------- */

h1, h2, h3 { line-height: 1.15; }

h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 4.8vw, 3.4rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.1vw, 2.2rem);
  letter-spacing: 0;
}

h3 { font-size: 1.15rem; font-weight: 800; }

.eyebrow {
  display: inline-block;
  color: #6f6f6c;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin-bottom: 14px;
}

.lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  padding: 13px 26px;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}

.btn svg { width: 18px; height: 18px; flex: none; }

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--brand);
  color: var(--white);
  border-color: var(--brand-dark);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.28);
}
.btn-primary:hover { background: var(--brand-dark); }

.btn-outline {
  background: var(--white);
  color: var(--ink);
  border-color: var(--ink);
}
.btn-outline:hover { background: var(--ink); color: var(--white); }

.btn-white {
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
}
.btn-white:hover { background: var(--tint); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.7);
}
.btn-outline-white:hover { background: rgba(255, 255, 255, 0.12); }

.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-sm { padding: 9px 18px; font-size: 0.9rem; }

.text-link {
  font-weight: 700;
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.text-link:hover { opacity: 0.65; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand-logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  object-fit: cover;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 0.98rem;
  color: var(--ink);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  white-space: nowrap;
}
.brand-name span { font-weight: 700; color: inherit; }
.brand-name-light { color: var(--white); }

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
}
.site-nav a:hover { text-decoration: underline; text-underline-offset: 4px; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.phone-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--ink);
  font-size: 0.98rem;
}
.phone-link svg { width: 17px; height: 17px; color: var(--ink); }
.phone-link:hover { opacity: 0.65; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2.5px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero {
  background:
    radial-gradient(900px 500px at 85% 20%, rgba(0, 0, 0, 0.05), transparent 60%),
    linear-gradient(180deg, var(--tint-2), var(--white));
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
  padding-block: 72px;
}

.hero h1 { margin-bottom: 20px; }
.hero .lead { margin-bottom: 32px; max-width: 34rem; }

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  list-style: none;
}

.hero-points li {
  position: relative;
  padding-left: 26px;
  font-weight: 600;
  font-size: 0.93rem;
  color: var(--ink-soft);
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--brand) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="3.5" stroke-linecap="round" stroke-linejoin="round"><path d="M20 6 9 17l-5-5"/></svg>') center / 11px no-repeat;
}

.hero-art { display: flex; justify-content: center; }

.hero-art img {
  width: min(460px, 100%);
  height: auto;
  mix-blend-mode: multiply;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-art img { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Trust bar ---------- */

.trust-bar {
  background: var(--ink);
  color: var(--white);
  padding-block: 26px;
}

.trust-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
}

.trust-item svg {
  width: 30px;
  height: 30px;
  color: var(--white);
  flex: none;
}

.trust-item p { display: flex; flex-direction: column; line-height: 1.35; }
.trust-item strong { font-size: 0.98rem; }
.trust-item span { font-size: 0.85rem; color: rgba(255, 255, 255, 0.6); }

/* ---------- Sections ---------- */

.section { padding-block: 88px; }

.section-tint { background: var(--tint-2); }

.section-head {
  max-width: 46rem;
  margin: 0 auto 52px;
  text-align: center;
}

.section-sub {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Service cards ---------- */

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--ink);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--tint);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.card-icon svg { width: 26px; height: 26px; color: var(--ink); }

.card h3 { margin-bottom: 8px; }
.card p { font-size: 0.93rem; color: var(--ink-soft); }

/* ---------- Sector cards ---------- */

.sector-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 5px solid var(--ink);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sector-badge {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--ink);
  display: grid;
  place-items: center;
}

.sector-badge svg { width: 28px; height: 28px; color: var(--white); }

.sector-card h3 { font-size: 1.4rem; }
.sector-card > p { color: var(--ink-soft); }

.sector-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sector-card ul li {
  position: relative;
  padding-left: 28px;
  font-weight: 600;
  font-size: 0.95rem;
}

.sector-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--tint) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23111111" stroke-width="3.5" stroke-linecap="round" stroke-linejoin="round"><path d="M20 6 9 17l-5-5"/></svg>') center / 11px no-repeat;
}

.sector-card .text-link { margin-top: auto; }

/* ---------- Why section ---------- */

.why-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.why-copy h2 { margin-bottom: 18px; }
.why-copy > p { color: var(--ink-soft); margin-bottom: 26px; }

.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.check-list li {
  position: relative;
  padding-left: 36px;
  color: var(--ink-soft);
}

.check-list li strong { color: var(--ink); }

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--brand) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="3.5" stroke-linecap="round" stroke-linejoin="round"><path d="M20 6 9 17l-5-5"/></svg>') center / 13px no-repeat;
}

.why-panel { display: flex; justify-content: center; }

.quote-card {
  background: linear-gradient(160deg, #1d1d1d, #000000);
  color: var(--white);
  border-radius: 22px;
  padding: 40px 36px;
  box-shadow: var(--shadow-lg);
  max-width: 26rem;
  position: relative;
}

.quote-mark {
  width: 40px;
  height: 40px;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 14px;
}

.quote-card p {
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.55;
}

.quote-attr {
  margin-top: 18px;
  font-size: 0.9rem !important;
  font-weight: 700 !important;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- Steps ---------- */

.steps { counter-reset: step; list-style: none; }

.step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px;
  position: relative;
}

.step-num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--brand);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.step h3 { margin-bottom: 8px; }
.step p { font-size: 0.93rem; color: var(--ink-soft); }

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

.cta-band {
  background:
    radial-gradient(circle at 12% 20%, rgba(255, 255, 255, 0.07) 0 60px, transparent 61px),
    radial-gradient(circle at 88% 75%, rgba(255, 255, 255, 0.06) 0 90px, transparent 91px),
    radial-gradient(circle at 70% 15%, rgba(255, 255, 255, 0.05) 0 40px, transparent 41px),
    linear-gradient(135deg, #1c1c1c 0%, #000000 100%);
  color: var(--white);
  padding-block: 72px;
}

.cta-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}

.cta-logo {
  width: 110px;
  height: 110px;
  border-radius: 24px;
  flex: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.cta-copy { flex: 1; }
.cta-copy h2 { margin-bottom: 10px; }
.cta-copy p { color: rgba(255, 255, 255, 0.82); max-width: 34rem; }

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.8);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-block: 56px 36px;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.93rem;
  max-width: 24rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.footer-col a { color: rgba(255, 255, 255, 0.8); font-weight: 600; }
.footer-col a:hover { color: var(--white); }
.footer-col .btn { margin-top: 8px; }

.footer-col .btn-primary {
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
  box-shadow: none;
}
.footer-col .btn-primary:hover { background: var(--tint); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-block: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-solo { border-top: none; text-align: center; }

/* ---------- Enquiry page ---------- */

.page-hero {
  background:
    radial-gradient(700px 320px at 90% 0%, rgba(0, 0, 0, 0.06), transparent 60%),
    linear-gradient(180deg, var(--tint), var(--white));
  padding-block: 60px 44px;
  text-align: center;
}

.page-hero h1 { margin-bottom: 14px; }
.page-hero .lead { max-width: 40rem; margin-inline: auto; }

.enquiry-section { padding-block: 56px 96px; }

.enquiry-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 36px;
  align-items: start;
}

/* Form */

.enquiry-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 34px;
}

.enquiry-form fieldset {
  border: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.enquiry-form legend {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--tint);
  width: 100%;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 20px;
}

.field { display: flex; flex-direction: column; gap: 7px; }

.field label {
  font-weight: 700;
  font-size: 0.9rem;
}

.req { color: var(--ink); }

.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--ink);
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field select { appearance: auto; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.12);
}

.field textarea { resize: vertical; min-height: 110px; }

.field-hint {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: -6px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 16px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.93rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.checkbox:hover { border-color: var(--ink); }

.checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--ink);
  flex: none;
}

.checkbox:has(input:checked) {
  border-color: var(--ink);
  background: var(--tint);
}

.field-error {
  color: #c0262d;
  font-weight: 700;
  font-size: 0.92rem;
}

.form-footer {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
}

.form-note { font-size: 0.9rem; color: var(--ink-soft); }

/* Sidebar */

.enquiry-aside {
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 96px;
}

.aside-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 26px;
  box-shadow: var(--shadow);
}

.aside-card h3 { margin-bottom: 10px; }

.aside-card-blue {
  background: linear-gradient(160deg, #1d1d1d, #000000);
  color: var(--white);
  border: none;
}

.aside-card-blue p { color: rgba(255, 255, 255, 0.82); font-size: 0.95rem; margin-bottom: 18px; }

.aside-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 10px;
}
.aside-phone svg { width: 22px; height: 22px; }
.aside-phone:hover { text-decoration: underline; }

.aside-email {
  display: block;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  font-size: 0.92rem;
  word-break: break-all;
}
.aside-email:hover { color: var(--white); text-decoration: underline; }

.aside-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.aside-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.aside-steps li span {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--tint);
  color: var(--ink);
  font-weight: 800;
  font-size: 0.85rem;
  flex: none;
}

.aside-logo-card {
  display: flex;
  justify-content: center;
  background: var(--tint-2);
}

.aside-logo-card img {
  width: 190px;
  mix-blend-mode: multiply;
}

/* ---------- Thanks page ---------- */

.thanks-hero {
  background:
    radial-gradient(700px 320px at 50% 0%, rgba(0, 0, 0, 0.05), transparent 60%),
    linear-gradient(180deg, var(--tint-2), var(--white));
  padding-block: 100px;
  min-height: 55vh;
}

.thanks-inner {
  max-width: 40rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.thanks-check {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--brand);
  display: grid;
  place-items: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.thanks-check svg { width: 42px; height: 42px; color: var(--white); }

/* ---------- Responsive ---------- */

@media (max-width: 1000px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; padding-block: 56px; }
  .hero .lead { margin-inline: auto; }
  .hero-cta, .hero-points { justify-content: center; }
  .hero-art { order: -1; }
  .hero-art img { width: min(320px, 75%); }
  .why-inner { grid-template-columns: 1fr; gap: 40px; }
  .enquiry-grid { grid-template-columns: 1fr; }
  .enquiry-aside { position: static; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-actions { flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 860px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 10px 24px 18px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--tint); }
  .site-nav a:last-child { border-bottom: none; }
  .nav-toggle { display: flex; }
  .phone-link span { display: none; }
}

@media (max-width: 620px) {
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .trust-inner { grid-template-columns: 1fr 1fr; }
  .field-grid, .checkbox-grid { grid-template-columns: 1fr; }
  .enquiry-form { padding: 28px 20px; }
  .header-actions .btn { display: none; }
  .phone-link span { display: none; }
  .section { padding-block: 64px; }
  .btn-lg { width: 100%; }
  .hero-cta { flex-direction: column; }
  .header-inner { gap: 12px; }
  .header-actions { gap: 12px; }
  .brand { gap: 10px; }
  .brand-name { font-size: 0.8rem; letter-spacing: 0.16em; }
}

@media (max-width: 340px) {
  .brand-name { display: none; }
}