/* Campaign Blaze — The Atelier */
:root {
  --chalk: #F5F3EE;
  --oat: #E9E5DC;
  --ink: #1B1712;
  --cobalt: #2340F0;
  --ember: #E08A2B;
  --warm-grey: #857E72;
  --link-on-light: #1B32C0;
  --text-on-accent: #F5F3EE;
  --input-bg: #FFFFFF;
  --radius: 2px;
  --font-display: "Archivo", "Segoe UI", sans-serif;
  --font-body: "Newsreader", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1140px;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--chalk);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: currentColor;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 2px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.12;
  margin: 0 0 0.55em;
}

h1 { font-size: clamp(2.75rem, 5.5vw, 5.125rem); }
h2 { font-size: clamp(1.85rem, 3vw, 2.65rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 700; }

p { margin: 0 0 1.05em; }
ul, ol { margin: 0 0 1.05em; padding-left: 1.2em; }
li { margin-bottom: 0.4em; }

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 2.5rem, 1280px);
  margin-inline: auto;
}

/* Surfaces */
.surface-chalk {
  background: var(--chalk);
  color: var(--ink);
}

.surface-oat {
  background: var(--oat);
  color: var(--ink);
}

.surface-ink {
  background: var(--ink);
  color: var(--chalk);
}

.surface-cobalt {
  background: var(--cobalt);
  color: var(--text-on-accent);
}

.surface-chalk a:not(.btn),
.surface-oat a:not(.btn) {
  color: var(--link-on-light);
}

.surface-ink a:not(.btn),
.surface-cobalt a:not(.btn) {
  color: var(--text-on-accent);
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 9999;
  padding: 0.75rem 1rem;
  background: var(--cobalt);
  color: var(--text-on-accent);
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  border-bottom: 1px solid rgba(27, 23, 18, 0.08);
  transition: box-shadow 0.24s var(--ease);
}

.site-header.is-scrolled {
  box-shadow: 0 8px 32px rgba(27, 23, 18, 0.08);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: inherit;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.wordmark__symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--ink);
  color: var(--cobalt);
  font-size: 0.72rem;
  border-radius: var(--radius);
}

.site-nav {
  justify-self: center;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.15rem 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  position: relative;
  display: inline-block;
  padding: 0.35rem 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  color: inherit;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--cobalt);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}

.nav a:hover::after,
.nav a:focus-visible::after,
.nav a.nav-active::after,
.nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.62rem 1rem;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  text-decoration: none;
  white-space: nowrap;
  transition: box-shadow 0.24s var(--ease), filter 0.24s var(--ease);
}

.header-cta:hover {
  box-shadow: 0 4px 16px rgba(27, 23, 18, 0.12);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  position: relative;
  z-index: 1101;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.site-header.is-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile overlay nav */
.nav-overlay {
  display: none;
}

@media (max-width: 768px) {
  .site-header__inner {
    grid-template-columns: 1fr auto auto;
  }

  .site-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    inset: 0;
    z-index: 1100;
    padding: 5rem 2rem 2rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.32s var(--ease), visibility 0.32s;
  }

  .site-header.is-open .nav-overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-overlay .nav {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .nav-overlay .nav a {
    font-size: clamp(1.35rem, 5vw, 1.75rem);
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .nav-overlay .header-cta {
    display: inline-flex;
    margin-top: 2rem;
  }
}

body.menu-open {
  overflow: hidden;
}

/* Section rhythm */
.section {
  padding: clamp(4.5rem, 8vw, 8.75rem) 0;
}

.section-label {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin: 0 0 1rem;
}

.lead {
  font-size: 1.15rem;
  max-width: 42rem;
}

.standfirst {
  font-size: 1.12rem;
  max-width: 35rem;
  color: rgba(27, 23, 18, 0.82);
}

.cobalt-text { color: var(--cobalt); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: box-shadow 0.24s var(--ease), filter 0.24s var(--ease);
}

.btn:hover {
  filter: brightness(1.04);
  box-shadow: 0 6px 20px rgba(27, 23, 18, 0.14);
  text-decoration: none;
}

.btn-primary {
  background: var(--cobalt);
  color: var(--text-on-accent);
  border-color: var(--cobalt);
}

.btn-secondary {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

/* Hero — The Spark Board */
.hero-spark {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 4vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
  background-image:
    linear-gradient(rgba(27, 23, 18, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 23, 18, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--ink);
  position: relative;
}

.hero-meta::before,
.hero-meta::after {
  content: "";
  position: absolute;
  bottom: -3px;
  width: 6px;
  height: 6px;
  background: var(--cobalt);
}

.hero-meta::before { left: 0; }
.hero-meta::after { right: 0; }

.hero-spark h1 {
  max-width: 16ch;
  margin-top: 1.5rem;
}

.hero-headline .word {
  display: inline-block;
}

.spark-lane {
  position: relative;
  margin: 1.75rem 0 2rem;
  padding-top: 1.5rem;
}

.spark-lane__line {
  position: relative;
  height: 1px;
  background: var(--ink);
}

.spark-lane__spark {
  position: absolute;
  top: -3px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--cobalt);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(35, 64, 240, 0.5);
}

.spark-lane__ticks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warm-grey);
}

.spark-lane__tick {
  position: relative;
  padding-top: 0.5rem;
}

.spark-lane__tick::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 8px;
  background: var(--ember);
}

.framed-plate {
  position: relative;
  margin: 2rem 0;
  border: 1px solid var(--ink);
  padding: 0.5rem;
  overflow: hidden;
  max-width: min(100%, 520px);
  width: 100%;
}

.framed-plate::before,
.framed-plate::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid var(--cobalt);
  z-index: 2;
}

.framed-plate::before {
  top: 0.35rem;
  left: 0.35rem;
  border-right: 0;
  border-bottom: 0;
}

.framed-plate::after {
  bottom: 0.35rem;
  right: 0.35rem;
  border-left: 0;
  border-top: 0;
}

.framed-plate img {
  width: 100%;
  height: auto;
  vertical-align: top;
  transition: transform 0.6s var(--ease);
}

.framed-plate.is-shift img {
  transform: scale(1.02);
}

.framed-plate__grid {
  position: absolute;
  inset: 0.5rem;
  background-image:
    linear-gradient(rgba(35, 64, 240, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 64, 240, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.trust-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--warm-grey);
  margin-top: 1.25rem;
}

/* Metrics */
.metric-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.metric {
  padding: 1.25rem 0 0;
  border-top: 2px solid var(--cobalt);
}

.metric__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.metric__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--warm-grey);
}

/* Stage grid */
.stage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stage-card {
  padding: 1.5rem;
  border: 1px solid rgba(27, 23, 18, 0.12);
  background: var(--chalk);
  position: relative;
}

.stage-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--cobalt);
}

.stage-card__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin-bottom: 0.75rem;
}

/* Capability rail */
.capability-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
  position: relative;
}

.capability-rail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--cobalt);
}

.cap-card {
  padding: 1.5rem 1rem 1rem;
  border: 1px solid rgba(27, 23, 18, 0.1);
  background: var(--chalk);
}

.cap-card__flight {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--cobalt);
  margin-bottom: 0.5rem;
}

/* Work cards */
.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.work-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.work-card__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warm-grey);
}

/* FAQ */
.faq-list {
  margin-top: 2rem;
}

.faq-item {
  border-top: 1px solid rgba(27, 23, 18, 0.12);
  padding: 1.5rem 0;
}

.faq-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.65em;
}

/* Service blocks */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3rem 0;
  border-bottom: 1px solid rgba(27, 23, 18, 0.1);
}

.service-block:nth-child(even) {
  direction: rtl;
}

.service-block:nth-child(even) > * {
  direction: ltr;
}

.service-block__price {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--warm-grey);
  margin-top: 1rem;
}

/* Forms */
.form-surface {
  background: var(--input-bg);
  border: 1px solid rgba(27, 23, 18, 0.15);
  padding: 2rem;
  border-radius: var(--radius);
}

.form-grid {
  display: grid;
  gap: 1.25rem;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

label {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid rgba(27, 23, 18, 0.2);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--input-bg);
}

input::placeholder,
textarea::placeholder {
  color: var(--warm-grey);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.checkbox-row {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
}

.checkbox-row input {
  width: auto;
  margin-top: 0.25rem;
}

.checkbox-row label {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  margin: 0;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-error {
  padding: 0.85rem 1rem;
  background: rgba(224, 138, 43, 0.12);
  border-left: 3px solid var(--ember);
  margin-bottom: 1.25rem;
}

/* Contact layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3rem;
  align-items: start;
}

.contact-block address {
  font-style: normal;
  line-height: 1.8;
}

/* Legal prose */
.legal-prose h2 {
  margin-top: 2.5rem;
}

.legal-prose h2:first-child {
  margin-top: 0;
}

/* Footer */
.site-footer {
  padding: clamp(3.5rem, 6vw, 5rem) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin: 0 0 1rem;
  color: rgba(245, 243, 238, 0.7);
}

.footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li {
  margin-bottom: 0.5rem;
}

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

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-strip {
  border-top: 1px solid rgba(245, 243, 238, 0.12);
  padding: 1.25rem 0 1.75rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(245, 243, 238, 0.75);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-disclaimer {
  max-width: 52rem;
  margin: 0 auto;
  line-height: 1.6;
}

.footer-legal a {
  text-decoration: none;
  margin: 0 0.25rem;
}

.footer-legal a:hover {
  text-decoration: underline;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--ink);
  color: var(--chalk);
  padding: 1.25rem 0;
  transform: translateY(110%);
  transition: transform 0.4s var(--ease);
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-banner__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.cookie-banner p {
  margin: 0;
  font-size: 0.9rem;
  max-width: 40rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.cookie-customise {
  width: 100%;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(245, 243, 238, 0.15);
}

.cookie-customise[hidden] {
  display: none;
}

.cookie-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
}

/* Fade-up animation */
.js .fade-up {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.js .fade-up.in-view {
  opacity: 1;
  transform: none;
}

/* Page hero (inner pages) */
.page-hero {
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-hero h1 {
  max-width: 18ch;
}

/* Split photo */
.photo-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
  align-items: start;
}

.photo-split .framed-plate {
  align-self: start;
  margin: 0;
}

.hero-spark .framed-plate {
  max-width: min(100%, 680px);
}

.section > .container > .framed-plate {
  max-width: min(100%, 640px);
}

.service-block .framed-plate {
  margin: 0;
}

/* 404 / Thanks */
.error-stage,
.thanks-block {
  min-height: 65vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem 0;
}

.error-stage h1 {
  max-width: 16ch;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 3px;
}

/* Responsive */
@media (max-width: 1024px) {
  .metric-trio,
  .capability-rail {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .service-block {
    grid-template-columns: 1fr;
  }

  .service-block:nth-child(even) {
    direction: ltr;
  }
}

@media (max-width: 768px) {
  .stage-grid,
  .work-grid,
  .contact-layout,
  .photo-split,
  .form-row-2 {
    grid-template-columns: 1fr;
  }

  .hero-spark {
    min-height: 80vh;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js .fade-up {
    opacity: 1;
    transform: none;
  }

  .spark-lane__spark {
    left: 75% !important;
  }
}