/* ===================================================
   66 Sounds — Mobile-First Stylesheet
   =================================================== */

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

/* Custom properties */
:root {
  --ink: #1a1814;
  --ink-mid: #3d3a34;
  --ink-muted: #7a7268;
  --ink-faint: #b8b2a8;
  --parchment: #f7f4ef;
  --parchment-deep: #ede9e2;
  --gold: #8c6d3f;
  --gold-light: #b8935a;
  --rule: rgba(26,24,20,0.12);
  --serif: 'Cormorant Garamond', Georgia, serif;
  --mono: 'DM Mono', monospace;
  --sans: 'Instrument Sans', sans-serif;
  --body-size: 19px;
}

html {
  scroll-behavior: smooth;
  font-size: var(--body-size);
}

body {
  font-family: var(--serif);
  background: var(--parchment);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
}

/* ===================================================
   NAV — mobile base
   =================================================== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--parchment);
  border-bottom: 0.5px solid var(--rule);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--ink);
  text-decoration: none;
  text-transform: uppercase;
  position: relative;
  z-index: 102;
}

.nav-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 102;
  position: relative;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: all 0.3s ease;
  transform-origin: center;
}

.nav-hamburger--active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.nav-hamburger--active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger--active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--parchment);
  flex-direction: column;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 101;
}

.nav-right--open {
  transform: translateX(0);
}

body.nav-open {
  overflow: hidden;
}

.nav-link {
  display: inline; /* show in mobile menu */
  font-family: var(--sans);
  font-size: 18px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.nav-link:hover { color: var(--gold); }

.nav-cta {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--parchment);
  background: var(--ink);
  padding: 0.75rem 1.25rem;
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: background 0.2s;
  white-space: nowrap;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-cta:hover { background: var(--ink-mid); }

/* ===================================================
   COMPLETION BANNER
   =================================================== */
.completion-banner {
  background: var(--gold);
  border-bottom: 0.5px solid var(--rule);
  padding: 2rem 1.25rem;
  text-align: center;
}

.completion-banner-inner {
  max-width: 800px;
  margin: 0 auto;
}

.completion-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--parchment);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}

.completion-title {
  font-family: var(--serif);
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  font-weight: 400;
  line-height: 1.25;
  color: var(--parchment);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.completion-text {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  color: rgba(247,244,239,0.9);
  margin: 0;
}

/* ===================================================
   HERO — mobile base (single column)
   =================================================== */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  padding-top: 64px;
  min-height: auto;
}

.hero-left {
  padding: 3.5rem 1.25rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-bottom: 0.5px solid var(--rule);
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.75rem, 10vw, 5.5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-body {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink-mid);
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.btn-primary {
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--parchment);
  background: var(--ink);
  padding: 1rem 2rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 0.2s;
  display: inline-block;
  min-height: 44px;
}

.btn-primary:hover { background: var(--gold); }

.btn-ghost {
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  text-decoration: none;
  border-bottom: 0.5px solid var(--ink-faint);
  padding-bottom: 2px;
  text-transform: uppercase;
  transition: color 0.2s, border-color 0.2s;
}

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

.hero-right {
  background: var(--parchment-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.25rem;
  position: relative;
  overflow: hidden;
  min-height: 260px;
}

.hero-number {
  font-family: var(--serif);
  font-size: clamp(8rem, 30vw, 18rem);
  font-weight: 300;
  font-style: italic;
  color: rgba(26,24,20,0.06);
  line-height: 1;
  position: absolute;
  user-select: none;
}

.hero-stat-stack {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1.75rem;
}

.hero-stat {
  border-left: 1px solid var(--gold);
  padding-left: 1.25rem;
}

.hero-stat-number {
  font-family: var(--mono);
  font-size: 1.85rem;
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.hero-stat-label {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===================================================
   RULE DIVIDER
   =================================================== */
.rule-divider {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0 1.25rem;
  margin: 0;
}

.rule-divider::before,
.rule-divider::after {
  content: '';
  flex: 1;
  height: 0.5px;
  background: var(--rule);
}

.rule-divider span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ===================================================
   MISSION SECTION — mobile base
   =================================================== */
.section-mission {
  padding: 4rem 1.25rem;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.section-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}

.section-title {
  font-size: clamp(1.85rem, 6vw, 3.25rem);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.section-title em { font-style: italic; color: var(--gold); }

.section-body {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1.85;
  color: var(--ink-mid);
}

/* ===================================================
   CANON GRID — mobile base
   =================================================== */
.section-canon {
  padding: 3.5rem 1.25rem 4rem;
  border-top: 0px solid var(--rule);
  border-bottom: 0px solid var(--rule);
}

.canon-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.canon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  max-width: 1100px;
  margin: 0 auto;
}

.canon-item {
  background: var(--parchment-deep);
  padding: 1.5rem 1.25rem;
  transition: background 0.2s;
}

.canon-item:hover { background: var(--parchment); }

.canon-book {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.35rem;
}

.canon-genre {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.canon-theme {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.5;
}

.canon-footer {
  text-align: center;
  margin: 2.5rem auto 0;
  max-width: 1100px;
}

/* ===================================================
   PHILOSOPHY — mobile base
   =================================================== */
.section-philosophy {
  padding: 4rem 1.25rem;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: 1100px;
  margin: 2.5rem auto 0;
  align-items: start;
}

.philosophy-quote {
  font-size: clamp(1.35rem, 4vw, 2.25rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.4;
  color: var(--ink);
  border-left: 2px solid var(--gold);
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.philosophy-attribution {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding-left: 1.5rem;
}

.philosophy-right {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.philosophy-point-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.philosophy-point-text {
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink-mid);
}

/* ===================================================
   REVELATION CALLOUT — mobile base
   =================================================== */
.section-revelation {
  background: var(--ink);
  padding: 4rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.revelation-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--serif);
  font-size: clamp(6rem, 20vw, 16rem);
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.03);
  white-space: nowrap;
  user-select: none;
  pointer-events: none;
}

.revelation-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.revelation-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--gold-light);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: block;
}

.revelation-title {
  font-size: clamp(1.85rem, 6vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: #f7f4ef;
  margin-bottom: 1.5rem;
}

.revelation-title em { font-style: italic; color: var(--gold-light); }

.revelation-body {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.85;
  color: rgba(247,244,239,0.85);
}

.revelation-volumes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2.5rem;
}

.revelation-vol {
  border: 0.5px solid rgba(247,244,239,0.15);
  padding: 1.5rem 1.25rem;
}

.revelation-vol-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.revelation-vol-title {
  font-size: 1.2rem;
  font-weight: 400;
  color: #f7f4ef;
  margin-bottom: 0.5rem;
}

.revelation-vol-desc {
  font-family: var(--sans);
  font-size: 14px;
  color: rgba(247,244,239,0.55);
  line-height: 1.6;
}

/* ===================================================
   CONTACT — mobile base
   =================================================== */
.section-contact {
  padding: 4rem 1.25rem;
  text-align: center;
  border-top: 0.5px solid var(--rule);
}

.contact-inner {
  max-width: 600px;
  margin: 0 auto;
}

.contact-title {
  font-size: clamp(1.85rem, 6vw, 3rem);
  font-weight: 300;
  color: var(--ink);
  margin-bottom: 1.25rem;
}

.contact-title em { font-style: italic; color: var(--gold); }

.contact-body {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink-mid);
  margin-bottom: 1rem;
}

.contact-uses {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.75rem 0 2.5rem;
}

.contact-use-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 0.5px solid var(--gold);
  padding: 0.5rem 0.85rem;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}

.contact-email {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 0.5px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color 0.2s, color 0.2s;
}

.contact-email:hover { color: var(--gold); border-color: var(--gold); }

/* ===================================================
   FOOTER — mobile base
   =================================================== */
footer {
  padding: 2rem 1.25rem;
  border-top: 0.5px solid var(--rule);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.footer-logo {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.footer-note {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-faint);
}

.footer-link {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover { color: var(--ink); }

/* ===================================================
   CONTACT FORM
   =================================================== */

/* Honeypot: visually hidden, not accessible to screen readers */
.contact-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.contact-form {
  margin-top: 2.5rem;
  text-align: left;
  position: relative;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.form-label span { color: var(--gold); }

.form-input {
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--parchment);
  border: 0.5px solid var(--rule);
  border-bottom: 1px solid var(--ink-faint);
  padding: 0.75rem 0.875rem;
  width: 100%;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
}

.form-input::placeholder { color: var(--ink-faint); }

.form-input:focus {
  border-color: var(--gold);
  background: #fff;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a7268' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.65;
}

.form-group { margin-bottom: 1.25rem; }

.form-footer {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 0.5rem;
}

.form-submit {
  border: none;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  min-height: 44px;
}

.form-submit:disabled {
  background: var(--ink-faint);
  cursor: not-allowed;
}

.form-status {
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 1.4em;
}

.form-status--ok  { color: #3a7a4a; }
.form-status--err { color: #a03030; }

/* ===================================================
   ABOUT PAGE
   =================================================== */

/* Active nav link */
.nav-link--active {
  display: inline;
  color: var(--ink) !important;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
}

/* Hero */
.about-hero {
  padding: 7rem 1.25rem 4rem;
  background: var(--parchment-deep);
}

.about-hero-inner {
  max-width: 800px;
  margin: 0 auto;
}

.about-hero-title {
  font-size: clamp(2.75rem, 8vw, 5rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 1.75rem;
}

.about-hero-title em {
  font-style: italic;
  color: var(--gold);
}

.about-hero-verse {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 1.75rem;
}

.about-hero-body {
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink-mid);
  max-width: 680px;
}

/* Sections */
.about-section {
  padding: 4rem 1.25rem;
}

.about-section--deep {
  background: var(--parchment-deep);
}

.about-section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about-section-header {
  margin-bottom: 2.5rem;
}

/* Two-column layout — stacked on mobile */
.about-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: start;
}

/* Prose blocks */
.about-prose {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-prose p {
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.85;
  color: var(--ink-mid);
}

.about-prose--spaced {
  margin-top: 2rem;
}

/* Stats row */
.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  margin: 2.5rem 0;
}

.about-stat {
  background: var(--parchment-deep);
  padding: 1.5rem 1.25rem;
}

.about-stat-number {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.about-stat-label {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Genre tags */
.about-genre-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.75rem 0;
}

.about-genre-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 0.5px solid var(--gold);
  padding: 0.4rem 0.75rem;
}

/* Platform note */
.about-platform-note {
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.75;
  color: var(--ink-mid);
  margin-top: 0.5rem;
}

.about-link {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 0.5px solid var(--gold);
  padding-bottom: 1px;
  transition: color 0.2s;
}

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

/* Daniel Carlisle external link */
.about-dc-link {
  display: inline-block;
  margin-top: 1.25rem;
}

/* ===================================================
   VOLUME 1 CANON PAGE
   =================================================== */
.vol1-note {
  background: var(--parchment);
  border: 0.5px solid var(--rule);
  border-left: 2px solid var(--gold);
  padding: 1.75rem 2rem;
  max-width: 800px;
}

.vol1-note-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.vol1-note-text {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--ink-mid);
  line-height: 1.7;
  margin: 0;
}


.about-revelation {
  background: var(--ink);
  padding: 4rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.about-revelation-inner {
  max-width: 760px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* Phases */
.about-phases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  margin-top: 2.5rem;
}

.about-phase {
  background: var(--parchment);
  padding: 2rem 1.5rem;
}

.about-phase-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.about-phase-title {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.about-phase-text {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink-mid);
}

/* Closing quote */
.about-closing {
  padding: 5rem 1.25rem;
  text-align: center;
  background: var(--parchment-deep);
  border-top: 0.5px solid var(--rule);
}

.about-closing-inner {
  max-width: 720px;
  margin: 0 auto;
}

.about-closing-quote {
  font-size: clamp(1.2rem, 3vw, 1.65rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.6;
  color: var(--ink);
  border-left: 2px solid var(--gold);
  padding-left: 2rem;
  text-align: left;
  margin-top: 1.5rem;
}

/* ABOUT — tablet+ */
@media (min-width: 768px) {
  .about-hero {
    padding: 9rem 3rem 6rem;
  }

  .about-section {
    padding: 6rem 3rem;
  }

  .about-two-col {
    grid-template-columns: 1fr 1.4fr;
    gap: 5rem;
  }

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-phases {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-revelation {
    padding: 6rem 3rem;
  }

  .about-closing {
    padding: 7rem 3rem;
  }
}

/* ===================================================
   CASE STUDY PAGE
   =================================================== */

/* Hero adjustment - no min-height needed */
.cs-hero { min-height: auto; }

/* Requirements grid */
.cs-requirements {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  margin-top: 2.5rem;
}

.cs-requirement {
  background: var(--parchment);
  padding: 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: start;
}

.cs-req-num {
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  line-height: 1.4;
  font-weight: 300;
}

.cs-req-text {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--ink-mid);
  line-height: 1.6;
}

/* Framework steps */
.cs-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
}

.cs-step {
  background: var(--parchment);
  padding: 1.1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.cs-step-num {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--gold);
  letter-spacing: -0.02em;
  line-height: 1;
  flex-shrink: 0;
  min-width: 1.75rem;
}

.cs-step-label {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: 0.02em;
}

/* Canon line box */
.cs-canon-line {
  background: var(--parchment-deep);
  border: 0.5px solid var(--rule);
  border-left: 2px solid var(--gold);
  padding: 1.75rem 1.5rem;
  max-width: 720px;
}

.cs-canon-line-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.85rem;
}

.cs-canon-book {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.cs-canon-theme,
.cs-canon-sonic {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-mid);
  line-height: 1.6;
  margin-top: 0.4rem;
}

.cs-canon-theme span,
.cs-canon-sonic span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-right: 0.35rem;
}

/* Theory grid */
.cs-theory-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  margin-bottom: 2rem;
}

.cs-theory-block {
  background: var(--parchment);
  padding: 1.65rem 1.5rem;
}

.cs-theory-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.cs-theory-list {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.cs-theory-list li {
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink-mid);
  line-height: 1.5;
  padding-left: 0;
}

.cs-theory-stat {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}

.cs-theory-stat span {
  font-size: 1rem;
  color: var(--ink-muted);
}

.cs-theory-goal {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  font-style: italic;
  color: var(--gold);
  line-height: 1.3;
}

/* Theory progressions box */
.cs-theory-note {
  background: var(--parchment);
  border: 0.5px solid var(--rule);
  padding: 1.5rem;
}

.cs-theory-note-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.cs-theory-progressions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.cs-theory-progressions code {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 400;
  color: var(--ink);
  background: var(--parchment-deep);
  border: 0.5px solid var(--rule);
  padding: 0.4rem 0.85rem;
  letter-spacing: 0.03em;
  display: inline-block;
}

.cs-theory-note-text {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--ink-mid);
  line-height: 1.7;
}

/* Instrument color */
.cs-instrument-principle {
  background: var(--parchment-deep);
  border-left: 2px solid var(--gold);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.cs-instrument-principle-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.5rem;
}

.cs-instrument-principle-text {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 400;
  font-style: italic;
  color: var(--ink);
  line-height: 1.4;
}

.cs-rhythm-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.cs-instruments-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

/* Track list */
.cs-tracklist {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--rule);
  border: 0.5px solid var(--rule);
  margin-bottom: 2rem;
}

.cs-track {
  background: var(--parchment);
  padding: 1.1rem 1.25rem;
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 0.75rem;
  align-items: start;
}

.cs-track--bonus {
  background: var(--parchment-deep);
  border-top: 1px solid var(--rule);
}

.cs-track-num {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 300;
  color: var(--ink-faint);
  padding-top: 0.15rem;
}

.cs-track--bonus .cs-track-num {
  color: var(--gold);
}

.cs-track-title {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.25rem;
}

.cs-track-ref {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.35rem;
}

.cs-track-theme {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.55;
}

/* Album arc */
.cs-album-arc {
  background: var(--parchment-deep);
  border: 0.5px solid var(--rule);
  padding: 1.5rem;
}

.cs-arc-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.cs-arc-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.cs-arc-items span {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-mid);
  font-weight: 400;
}

.cs-arc-items span + span::before {
  content: '-';
  margin-right: 0.5rem;
  color: var(--ink-faint);
}

/* Tagging */
.cs-tag-set {
  margin-top: 1.5rem;
  background: var(--parchment-deep);
  border: 0.5px solid var(--rule);
  padding: 1.25rem 1.5rem;
}

.cs-tag-set-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Two side-by-side lists */
.cs-two-lists {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.cs-two-lists > div {
  border: 0.5px solid var(--rule);
  background: var(--parchment);
  padding: 1.5rem;
}

/* Case study — tablet+ */
@media (min-width: 600px) {
  .cs-requirements {
    grid-template-columns: repeat(2, 1fr);
  }

  .cs-theory-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cs-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .cs-two-lists {
    grid-template-columns: 1fr 1fr;
  }
}

/* Case study desktop+ */
@media (min-width: 768px) {
  .cs-theory-note {
    padding: 2rem;
  }
  .cs-tracklist .cs-track {
    padding: 1.25rem 1.5rem;
  }
}

/* ===================================================
   ANIMATIONS
   =================================================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow { animation: fadeUp 0.6s ease both; }
.hero-title { animation: fadeUp 0.6s ease 0.1s both; }
.hero-body { animation: fadeUp 0.6s ease 0.2s both; }
.hero-actions { animation: fadeUp 0.6s ease 0.3s both; }
.hero-stat-stack { animation: fadeUp 0.6s ease 0.2s both; }

/* ===================================================
   TABLET & DESKTOP — min-width: 600px
   =================================================== */
@media (min-width: 600px) {
  .canon-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .form-footer {
    flex-direction: row;
    align-items: center;
  }

  .hero-actions {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }

  .hero-stat-stack {
    flex-direction: column;
    gap: 2rem;
  }
}

/* ===================================================
   DESKTOP — min-width: 768px
   =================================================== */
@media (min-width: 768px) {
  nav {
    padding: 1.25rem 3rem;
  }

  .nav-hamburger {
    display: none; /* hide on desktop */
  }

  .nav-right {
    position: static;
    transform: none;
    flex-direction: row;
    background: none;
    gap: 2.5rem;
  }

  .nav-link {
    font-size: 13px;
    color: var(--ink-muted);
  }

  .nav-link:hover { color: var(--ink); }

  .nav-cta {
    padding: 0.5rem 1.25rem;
    min-height: auto;
    display: inline-block;
  }

  .completion-banner {
    padding: 2.5rem 3rem;
  }

  /* Hero: 2-column layout */
  .hero {
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    padding-top: 72px;
  }

  .hero-left {
    padding: 7rem 3rem 5rem 3rem;
    border-bottom: none;
    border-right: 0.5px solid var(--rule);
  }

  .hero-right {
    padding: 5rem 3rem;
    min-height: auto;
  }

  .hero-stat-stack {
    flex-direction: column;
    gap: 2.5rem;
  }

  .hero-stat-number {
    font-size: 2.25rem;
  }

  /* Sections: full padding */
  .section-mission {
    padding: 7rem 3rem;
  }

  .section-canon {
    padding: 5rem 3rem 7rem;
  }

  .canon-header {
    margin-bottom: 4rem;
  }

  .canon-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }

  .section-philosophy {
    padding: 7rem 3rem;
  }

  .philosophy-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    margin-top: 4rem;
  }

  .philosophy-quote {
    padding-left: 2rem;
  }

  .philosophy-attribution {
    padding-left: 2rem;
  }

  .section-revelation {
    padding: 6rem 3rem;
  }

  .revelation-volumes {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 3rem;
  }

  .section-contact {
    padding: 7rem 3rem;
  }

  .rule-divider {
    padding: 0 3rem;
  }

  footer {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 3rem;
    text-align: left;
  }
}