/* Amplify Your Voice — Resonance design language */
@import url("https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,600;0,700;1,600;1,700&family=Inter:wght@400;600&display=swap");

:root {
  --ink: #0f1620;
  --linen: #ede6d7;
  --brass: #b99551;
  --pewter: #6e7580;
  --ivory: #faf6ea;
  --serif: "Cormorant Garamond", "Times New Roman", Times, serif;
  --sans: Inter, "Segoe UI", Helvetica, Arial, sans-serif;
  --measure: 41.25rem;
  --pad-y: clamp(6rem, 10vw, 8.25rem);
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--ivory);
}

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

a {
  color: currentColor;
}

h1,
h2,
h3,
.display {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.005em;
}

h1 {
  font-size: clamp(2.75rem, 6vw, 5rem);
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(2rem, 3.4vw, 2.85rem);
  margin: 0 0 0.85rem;
}

h3 {
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  margin: 0 0 0.5rem;
}

p {
  margin: 0 0 1.1rem;
}

/* Hall colour fields — Resonance tokens */
.hall-midnight {
  background: var(--ink);
  color: var(--ivory);
}

.hall-linen {
  background: var(--linen);
  color: var(--ink);
}

.hall-ivory {
  background: var(--ivory);
  color: var(--ink);
}

.hall-brass {
  background: var(--brass);
  color: var(--ink);
}

.wrap {
  width: min(72rem, calc(100% - 2.5rem));
  margin-inline: auto;
}

.measure {
  max-width: var(--measure);
}

.resonance-rail {
  display: block;
  width: 4.5rem;
  height: 1px;
  background: var(--brass);
  border: 0;
  margin: 0.65rem 0 1.25rem;
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
}

.lead {
  font-size: 1.125rem;
}

/* Mast */
.site-mast {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(15, 22, 32, 0.94);
  color: var(--ivory);
  border-bottom: 1px solid rgba(185, 149, 81, 0.28);
}

.mast-bar {
  width: min(72rem, calc(100% - 2.5rem));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.mast-mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.mast-mono {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--brass);
  color: var(--brass);
  font-family: var(--serif);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.mast-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.15rem;
}

.mast-toggle {
  display: none;
  background: transparent;
  color: var(--ivory);
  border: 1px solid var(--brass);
  padding: 0.4rem 0.7rem;
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.mast-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.15rem 1.35rem;
}

.mast-nav a {
  text-decoration: none;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
}

.mast-nav a[aria-current="page"] {
  color: var(--brass);
}

/* Buttons — chorus namespace */
.chorus-link,
.chorus-link--ghost {
  display: inline-block;
  text-decoration: none;
  padding: 0.78rem 1.25rem;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--sans);
}

.chorus-link {
  background: var(--brass);
  color: var(--ink);
  border-color: var(--brass);
}

.chorus-link--ghost {
  background: transparent;
  color: inherit;
  border-color: currentColor;
}

.chorus-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

/* Briefing Hall hero */
.hall-hero {
  min-height: 92vh;
  display: grid;
  align-items: stretch;
  padding: 0;
}

.hall-hero-grid {
  width: min(72rem, calc(100% - 2.5rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 2.5rem;
  align-items: center;
  min-height: 92vh;
  padding: 2.5rem 0 3.5rem;
}

.hero-topline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
}

.hero-hook em {
  font-style: italic;
  color: var(--brass);
}

.hero-frame {
  position: relative;
  align-self: stretch;
  min-height: 70vh;
}

.hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 70vh;
  outline: 1px solid var(--brass);
  outline-offset: 8px;
}

.trust-strip {
  margin-top: 2rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pewter);
}

/* Quote slab */
.quote-slab {
  padding: var(--pad-y) 0;
}

.quote-slab blockquote {
  margin: 0 auto;
  max-width: 46rem;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 600;
  line-height: 1.28;
  text-align: center;
}

.quote-slab blockquote::before,
.quote-slab blockquote::after {
  color: var(--brass);
  font-weight: 700;
}

.quote-slab blockquote::before {
  content: "“ ";
}

.quote-slab blockquote::after {
  content: " ”";
}

.quote-attr {
  display: block;
  margin-top: 1.25rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pewter);
  text-align: center;
}

/* Principle rails */
.principle-band {
  padding: var(--pad-y) 0;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.principle-rail .word {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.35rem;
}

/* Case notes */
.notes-band {
  padding: var(--pad-y) 0;
}

.note-row {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(185, 149, 81, 0.45);
}

.note-row:last-child {
  border-bottom: 1px solid rgba(185, 149, 81, 0.45);
}

.note-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  font-weight: 600;
}

/* Brief cards */
.brief-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.brief-card {
  background: var(--linen);
  color: var(--ink);
  padding: 1.6rem 1.45rem 1.8rem;
  position: relative;
  min-height: 12rem;
}

.brief-card::after {
  content: "";
  position: absolute;
  left: 1.2rem;
  right: 1.2rem;
  top: 50%;
  height: 1px;
  background: rgba(15, 22, 32, 0.08);
}

.brief-card h3 {
  position: relative;
  z-index: 1;
}

.brief-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 0.95rem;
}

.engagements-band,
.cta-band,
.split-band,
.faq-band,
.page-open,
.longform,
.form-band,
.map-band,
.legal-band {
  padding: var(--pad-y) 0;
}

/* Voice register ticker */
.voice-register {
  overflow: hidden;
  border-block: 1px solid rgba(185, 149, 81, 0.35);
  padding: 1rem 0;
}

.voice-register-track {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: register-shift 42s linear infinite;
}

.voice-register span {
  font-family: var(--serif);
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

@keyframes register-shift {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* Split editorial */
.split-editorial {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: center;
}

.split-editorial.reverse {
  grid-template-columns: 2fr 3fr;
}

.drop-cap::first-letter {
  font-family: var(--serif);
  font-size: 3.4rem;
  float: left;
  line-height: 0.85;
  padding: 0.2rem 0.45rem 0 0;
  color: var(--brass);
}

.photo-frame {
  outline: 1px solid var(--brass);
  outline-offset: 8px;
}

.photo-frame img {
  width: 100%;
  object-fit: cover;
}

/* Capability list */
.cap-list {
  display: grid;
  gap: 1.6rem;
}

.cap-item {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 1rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid rgba(185, 149, 81, 0.35);
}

.cap-num {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--brass);
}

/* Manifesto */
.manifesto {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  line-height: 1.2;
  max-width: 38rem;
}

/* Accordion */
.ask-list {
  max-width: 46rem;
}

.ask-item {
  border-bottom: 1px solid rgba(185, 149, 81, 0.4);
}

.ask-item h2,
.ask-item h3 {
  margin: 0;
}

.ask-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  padding: 1.15rem 0;
}

.ask-item summary::-webkit-details-marker {
  display: none;
}

.ask-item p {
  padding-bottom: 1.1rem;
}

/* Form */
.field-stack {
  display: grid;
  gap: 1rem;
  max-width: 36rem;
}

.field-stack label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.field-stack input,
.field-stack textarea {
  width: 100%;
  background: #fff;
  border: 1px solid rgba(15, 22, 32, 0.22);
  padding: 0.7rem 0.8rem;
  font: inherit;
  color: var(--ink);
}

.field-stack textarea {
  min-height: 10rem;
  resize: vertical;
}

.consent-row {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.consent-row input {
  width: auto;
  margin-top: 0.3rem;
}

.decoy-wrap {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.chorus-notice,
.chorus-thanks {
  padding: 1rem 1.1rem;
  border: 1px solid var(--brass);
  margin-bottom: 1.25rem;
  max-width: 36rem;
}

.chorus-thanks:not(:target):not(.is-open) {
  display: none;
}

.field-err {
  color: #7a2e24;
  font-size: 0.82rem;
  margin: 0.3rem 0 0;
}

.field-err:empty {
  display: none;
}

.input-flag {
  border-color: #7a2e24 !important;
}

.map-frame {
  width: 100%;
  height: 400px;
  border: 1px solid var(--brass);
  filter: grayscale(0.2) contrast(1.05) brightness(0.98);
}

.map-frame iframe {
  width: 100%;
  height: 400px;
  border: 0;
}

.contact-meta p {
  margin-bottom: 0.4rem;
}

/* Footer */
.site-end {
  padding: 3.5rem 0 2.5rem;
  font-size: 0.92rem;
}

.end-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}

.end-nav {
  display: grid;
  gap: 0.35rem;
}

.end-nav a,
.legal-links a {
  text-decoration: none;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  margin: 2rem 0 1rem;
  font-size: 0.82rem;
}

.fine-print {
  color: var(--pewter);
  font-size: 0.8rem;
  max-width: 46rem;
}

/* Cookie prefs bar */
.prefs-bar {
  position: fixed;
  inset: auto 1rem 1rem 1rem;
  z-index: 60;
  background: var(--ivory);
  color: var(--ink);
  border: 1px solid var(--brass);
  padding: 1.1rem 1.2rem;
  max-width: 42rem;
  box-shadow: 0 12px 40px rgba(15, 22, 32, 0.18);
}

.prefs-bar[hidden] {
  display: none;
}

.prefs-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.8rem;
}

.prefs-actions button,
.prefs-panel button {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--ink);
  background: transparent;
  cursor: pointer;
}

.prefs-actions button[data-choice="agree"] {
  background: var(--brass);
  border-color: var(--brass);
}

.prefs-panel {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.45rem;
}

.prefs-panel[hidden] {
  display: none;
}

/* Page utilities */
.page-kicker {
  padding-top: 4.5rem;
}

.studio-note {
  border-left: 1px solid var(--brass);
  padding-left: 1.2rem;
  font-style: italic;
  font-family: var(--serif);
  font-size: 1.25rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.muted {
  color: var(--pewter);
}

.block-gap {
  margin-top: 1.75rem;
}

.block-gap-lg {
  margin-top: 2.5rem;
}

.figure-gap {
  margin: 1.8rem 0 2rem;
}

/* Motion */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

  .js .reveal,
  .js .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .voice-register-track {
    animation: none;
  }
}

@media (max-width: 900px) {
  .hall-hero,
  .hall-hero-grid {
    min-height: 78vh;
  }

  .hall-hero-grid,
  .split-editorial,
  .split-editorial.reverse,
  .principle-grid,
  .brief-grid,
  .end-grid,
  .two-col,
  .note-row {
    grid-template-columns: 1fr;
  }

  .hero-frame,
  .hero-frame img {
    min-height: 42vh;
  }

  .mast-toggle {
    display: inline-block;
  }

  .mast-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 4.25rem;
    background: var(--ink);
    padding: 1rem 1.25rem 1.4rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .mast-nav.is-open {
    display: flex;
  }
}