/* ==========================================================================
   montmessin_  —  Swiss/editorial minimalism. Paper white, ink black.
   No cards, no shadows, no gradients, no rounded corners. Hairlines only.
   Header floats and self-inverts over dark bands via mix-blend-mode.
   ========================================================================== */

:root {
  --paper: #fafaf7;
  --ink: #0a0a0a;
  --ink-soft: rgba(10, 10, 10, 0.62);
  --hairline: rgba(10, 10, 10, 0.18);
  --hairline-strong: rgba(10, 10, 10, 0.85);
  --paper-soft: rgba(250, 250, 247, 0.68);
  --paper-hairline: rgba(250, 250, 247, 0.28);
  --gutter: clamp(20px, 4vw, 64px);
  --max-w: 1440px;
  --font-sans: "Archivo", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "Spline Sans Mono", "SF Mono", Menlo, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

/* film grain over every surface: makes paper and ink feel like material */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.16;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  background-size: 180px 180px;
  mix-blend-mode: overlay;
}

section[id], main {
  scroll-margin-top: 90px;
}

h1, h2, h3, p, dl, dd, dt, ul {
  margin: 0;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  z-index: 100;
}
.skip-link:focus {
  left: 0;
}

/* ---- shared shell */
.hero,
.credibility,
.panel,
.band-inner,
.contact-inner,
.site-footer {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ==========================================================================
   Header — floats over everything; white text + difference blend means it
   renders dark on paper and light on ink bands, inverting as you scroll.
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 22px var(--gutter) 14px;
  color: #fff;
  mix-blend-mode: difference;
}

.wordmark,
.wordmark-footer {
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: baseline;
  gap: clamp(16px, 2.4vw, 34px);
}

.site-nav a {
  position: relative;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s var(--ease-out);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease-out);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  opacity: 1;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav .nav-contact::after {
  content: none;
}

.site-nav .nav-contact {
  opacity: 1;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.menu-toggle {
  display: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: none;
  border: 1px solid currentColor;
  color: inherit;
  padding: 6px 14px;
  cursor: pointer;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding-top: clamp(110px, 16vh, 180px);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: clamp(28px, 4vh, 48px);
}

.hero-title {
  font-size: clamp(52px, 9.5vw, 148px);
  line-height: 0.98;
  font-weight: 600;
  letter-spacing: -0.045em;
}

/* masked line reveal on load */
.hero-title .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.06em;
  margin-bottom: -0.06em;
}

.hero-title .line-inner {
  display: inline-block;
  transform: translateY(115%);
  animation: rise 0.9s var(--ease-out) forwards;
}

.hero-title .line:nth-child(2) .line-inner {
  animation-delay: 0.12s;
}

@keyframes rise {
  to { transform: translateY(0); }
}

.hero-eyebrow,
.hero-lower {
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) 0.35s forwards;
}

.hero-eyebrow {
  animation-delay: 0.05s;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.cursor {
  display: inline-block;
  font-weight: 400;
  animation: blink 1.15s steps(1) infinite;
}

/* hollow type that fills on hover */
.outline {
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
  transition: color 0.4s var(--ease-out);
}

.hero-title:hover .outline {
  color: var(--ink);
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-lower {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-top: clamp(36px, 6vh, 64px);
}

.hero-text {
  max-width: 540px;
  font-size: clamp(17px, 1.4vw, 20px);
  color: var(--ink-soft);
  font-weight: 400;
}

.hero-actions {
  display: flex;
  gap: 28px;
  align-items: baseline;
}

.action {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--hairline-strong);
  transition: opacity 0.2s var(--ease-out);
}

.action:hover {
  opacity: 0.55;
}

.action-primary {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  padding: 14px 26px;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.action-primary:hover {
  background: var(--paper);
  color: var(--ink);
  opacity: 1;
}

/* ---- ledger */

.ledger {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--hairline-strong);
  margin-top: clamp(56px, 9vh, 96px);
}

.ledger-item {
  padding: 26px clamp(0px, 2vw, 32px) 34px 0;
}

.ledger-item + .ledger-item {
  border-left: 1px solid var(--hairline);
  padding-left: clamp(18px, 2.4vw, 36px);
}

.ledger-item dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.ledger-item dd {
  font-size: clamp(26px, 2.9vw, 42px);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-top: 14px;
  line-height: 1.05;
}

.ledger-item p {
  margin-top: 10px;
  font-size: 14px;
  color: var(--ink-soft);
  max-width: 32ch;
}

/* ==========================================================================
   Credibility strip
   ========================================================================== */

.credibility {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px 40px;
  padding-block: 26px;
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
  margin-top: clamp(64px, 10vh, 120px);
  max-width: none;
}

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

.credibility ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
  list-style: none;
  padding: 0;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.credibility li::after {
  content: "*";
  margin-inline: 18px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.credibility li:last-child::after {
  content: none;
}

/* ==========================================================================
   Panels — sticky editorial two-column sections
   ========================================================================== */

.panel {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 0 clamp(32px, 5vw, 96px);
  padding-top: clamp(90px, 14vh, 170px);
}

.panel-side {
  align-self: start;
  position: sticky;
  top: clamp(90px, 14vh, 130px);
  padding-bottom: 40px;
}

.panel-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 12px;
  margin-bottom: clamp(24px, 4vh, 44px);
}

.panel-title {
  font-size: clamp(30px, 3.6vw, 54px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.panel-title em {
  font-style: italic;
  font-weight: 400;
}

.panel-note {
  margin-top: 22px;
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 34ch;
}

.panel-body .entry:first-child {
  border-top: 0;
  padding-top: 4px;
}

.entry {
  border-top: 1px solid var(--hairline-strong);
  padding: 26px 0 40px;
}

.entry h3 {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.015em;
  max-width: 26ch;
}

.entry p {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15.5px;
  max-width: 52ch;
}

.entry-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.principles {
  border-top: 1px solid var(--hairline-strong);
  padding: 26px 0 10px;
}

.principles p {
  font-size: 17px;
  line-height: 1.7;
  max-width: 46ch;
}

.principles strong {
  font-weight: 600;
}

/* ==========================================================================
   Marquee — giant kinetic type band
   ========================================================================== */

.marquee {
  overflow: hidden;
  margin-top: clamp(90px, 14vh, 170px);
  border-top: 1px solid var(--hairline-strong);
  border-bottom: 1px solid var(--hairline-strong);
  padding-block: clamp(18px, 3vh, 34px);
}

.marquee-track {
  display: flex;
  align-items: baseline;
  gap: clamp(28px, 4vw, 64px);
  width: max-content;
  font-size: clamp(56px, 8vw, 130px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  white-space: nowrap;
  animation: marquee 36s linear infinite;
}

.marquee-track .outline {
  -webkit-text-stroke: 1.5px var(--ink);
}

.marquee-mark {
  font-size: 0.35em;
  transform: translateY(-0.6em);
  color: var(--ink-soft);
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   Band — full-bleed inverted services section
   ========================================================================== */

.band {
  background: var(--ink);
  color: var(--paper);
  margin-top: clamp(90px, 14vh, 170px);
}

.band-inner {
  padding-block: clamp(72px, 11vh, 130px);
}

.band-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 48px;
}

.band-head .panel-label {
  color: var(--paper-soft);
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 0;
}

.band-title {
  font-size: clamp(30px, 3.6vw, 54px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.band-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-soft);
  margin-top: clamp(28px, 5vh, 48px);
}

.index-list {
  margin-top: 18px;
  border-top: 1px solid var(--paper-hairline);
}

.index-row {
  margin-inline: -12px;
  border-bottom: 1px solid var(--paper-hairline);
  transition: background 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

.index-row-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr) 48px;
  align-items: baseline;
  gap: clamp(16px, 2.5vw, 40px);
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  padding: 28px 12px;
  cursor: pointer;
}

.index-row-head h3 {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.index-row-head p {
  color: var(--paper-soft);
  font-size: 15.5px;
  transition: color 0.25s var(--ease-out);
}

.row-toggle {
  justify-self: end;
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
  transition: transform 0.3s var(--ease-out);
}

.index-row:hover,
.index-row.is-open {
  background: var(--paper);
  color: var(--ink);
}

.index-row:hover .index-row-head p,
.index-row.is-open .index-row-head p {
  color: var(--ink-soft);
}

.index-row.is-open .row-toggle {
  transform: rotate(45deg);
}

.index-row-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease-out);
}

.index-row.is-open .index-row-panel {
  grid-template-rows: 1fr;
}

.index-row-panel-inner {
  overflow: hidden;
  min-height: 0;
}

.index-row-panel ul {
  list-style: none;
  padding: 4px 12px 8px;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px clamp(16px, 2.5vw, 40px);
  max-width: 860px;
}

.index-row-panel li {
  font-size: 15px;
  color: var(--ink-soft);
  border-top: 1px solid var(--hairline);
  padding-top: 10px;
}

.panel-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  margin: 18px 12px 28px;
  transition: opacity 0.2s var(--ease-out);
}

.panel-cta:hover {
  opacity: 0.55;
}

/* ==========================================================================
   Writing
   ========================================================================== */

.writing-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) auto;
  gap: clamp(16px, 2.5vw, 40px);
  align-items: baseline;
  border-top: 1px solid var(--hairline-strong);
  padding: 26px 0 34px;
}

.panel-body .writing-row:first-child {
  border-top: 0;
  padding-top: 4px;
}

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

.writing-row h3 {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.writing-row p {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 15.5px;
  max-width: 52ch;
}

.writing-status {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--hairline-strong);
  padding: 6px 12px;
  white-space: nowrap;
}

.writing-link {
  text-decoration: none;
  transition: opacity 0.2s var(--ease-out);
}

.writing-link:hover {
  opacity: 0.55;
}

.writing-date {
  border: 0;
  padding: 0;
  color: var(--ink-soft);
}

.panel-action {
  display: inline-block;
  margin-top: 28px;
}

/* ==========================================================================
   Inner pages — writing index, articles, 404
   ========================================================================== */

.page-head,
.writing-list,
.article {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-head {
  padding-top: clamp(110px, 16vh, 180px);
}

.page-title {
  font-size: clamp(44px, 7.5vw, 116px);
  line-height: 0.98;
  font-weight: 600;
  letter-spacing: -0.045em;
}

.page-head .hero-eyebrow {
  margin-bottom: clamp(20px, 3vh, 36px);
}

.page-intro {
  margin-top: clamp(24px, 4vh, 40px);
  max-width: 520px;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.4vw, 19px);
}

.page-intro a {
  color: var(--ink);
}

.writing-list {
  margin-top: clamp(48px, 8vh, 90px);
  padding-bottom: clamp(80px, 12vh, 150px);
  border-top: 1px solid var(--hairline-strong);
}

.writing-list .writing-row:first-child {
  border-top: 0;
}

.writing-empty {
  padding-top: 34px;
  color: var(--ink-soft);
  max-width: 52ch;
}

.writing-empty a {
  color: var(--ink);
}

/* ---- article pages */

.article {
  padding-top: clamp(110px, 16vh, 170px);
  padding-bottom: clamp(80px, 12vh, 150px);
}

.article-head {
  max-width: 760px;
}

.article-back {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  transition: color 0.2s var(--ease-out);
}

.article-back:hover {
  color: var(--ink);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: clamp(28px, 5vh, 48px);
}

.article-title {
  font-size: clamp(36px, 5.4vw, 76px);
  line-height: 1.02;
  font-weight: 600;
  letter-spacing: -0.04em;
  margin-top: 18px;
}

.article-lede {
  margin-top: 22px;
  font-size: clamp(18px, 1.5vw, 22px);
  color: var(--ink-soft);
}

.article-body {
  max-width: 680px;
  margin-top: clamp(40px, 7vh, 72px);
  border-top: 1px solid var(--hairline-strong);
  padding-top: clamp(32px, 5vh, 52px);
  font-size: 17.5px;
  line-height: 1.75;
}

.article-body p {
  margin: 0 0 1.4em;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 2em 0 0.7em;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 1.8em 0 0.6em;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.4em;
  padding-left: 1.2em;
}

.article-body li {
  margin-bottom: 0.5em;
}

.article-body blockquote {
  margin: 2em 0;
  padding-left: 24px;
  border-left: 2px solid var(--ink);
  font-size: 20px;
  line-height: 1.5;
  font-style: italic;
}

.article-body a {
  color: var(--ink);
}

.article-body img {
  max-width: 100%;
  height: auto;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: rgba(10, 10, 10, 0.06);
  padding: 2px 6px;
}

.article-body pre {
  overflow-x: auto;
  background: var(--ink);
  color: var(--paper);
  padding: 20px 24px;
  margin: 0 0 1.4em;
}

.article-body pre code {
  background: none;
  padding: 0;
}

.article-body hr {
  border: 0;
  border-top: 1px solid var(--hairline-strong);
  margin: 2.5em 0;
}

.article-cta {
  max-width: 680px;
  margin-top: clamp(48px, 8vh, 80px);
  border-top: 1px solid var(--hairline-strong);
  padding-top: 36px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 20px 40px;
}

.article-cta p {
  font-size: 19px;
  font-weight: 500;
}

/* ==========================================================================
   Contact — inverted band
   ========================================================================== */

.contact {
  background: var(--ink);
  color: var(--paper);
  margin-top: clamp(90px, 14vh, 180px);
}

.contact-inner {
  padding-block: clamp(56px, 8vh, 90px) clamp(48px, 7vh, 80px);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(40px, 6vw, 110px);
  align-items: start;
  margin-top: clamp(32px, 5vh, 56px);
}

.panel-label-invert {
  color: var(--paper-soft);
  border-bottom-color: rgba(250, 250, 247, 0.4);
}

.contact-title {
  font-size: clamp(36px, 4.6vw, 68px);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.contact-text {
  margin-top: clamp(20px, 3vh, 32px);
  max-width: 480px;
  color: var(--paper-soft);
  font-size: 17px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  margin-top: clamp(22px, 3.5vh, 36px);
}

.contact-links a {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-bottom: 1px solid rgba(250, 250, 247, 0.5);
  padding-bottom: 3px;
  transition: border-color 0.2s var(--ease-out), opacity 0.2s var(--ease-out);
}

.contact-links a:hover {
  border-color: var(--paper);
  opacity: 0.8;
}

.contact-form {
  margin-top: 6px;
}

.field {
  margin-bottom: 26px;
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(250, 250, 247, 0.6);
  margin-bottom: 10px;
}

.field input,
.field textarea {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(250, 250, 247, 0.35);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 17px;
  padding: 8px 0 12px;
  border-radius: 0;
  transition: border-color 0.2s var(--ease-out);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.5;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--paper);
}

.field input:-webkit-autofill,
.field textarea:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 1000px var(--ink) inset;
  -webkit-text-fill-color: var(--paper);
}

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

.contact-submit {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--paper);
  padding: 15px 30px;
  cursor: pointer;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.contact-submit:hover:not(:disabled) {
  background: transparent;
  color: var(--paper);
}

.contact-submit:disabled {
  opacity: 0.5;
  cursor: default;
}

.form-status {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(250, 250, 247, 0.75);
  min-height: 1.4em;
}

.form-status.is-error {
  color: #ffb4a8;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 32px;
  padding-block: 26px 34px;
  border-top: 1px solid rgba(250, 250, 247, 0.16);
  background: var(--ink);
  color: rgba(250, 250, 247, 0.62);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  max-width: none;
}

.site-footer .wordmark-footer {
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* scroll-driven drift on section titles (progressive enhancement) */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .panel-title,
    .band-title {
      animation: title-drift 1s linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 80%;
    }
  }
}

@keyframes title-drift {
  from {
    transform: translateY(36px);
    opacity: 0.2;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .cursor { animation: none; }
  .hero-title .line-inner,
  .hero-eyebrow,
  .hero-lower {
    animation: none;
    transform: none;
    opacity: 1;
  }
  .marquee-track {
    animation: none;
  }
  * { transition-duration: 0.01ms !important; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
  .panel {
    grid-template-columns: 1fr;
  }

  .panel-side {
    position: static;
    padding-bottom: 8px;
  }

  .index-row {
    margin-inline: 0;
  }

  .index-row-head {
    grid-template-columns: 1fr 32px;
    row-gap: 8px;
    padding-inline: 0;
  }

  .index-row-head p {
    grid-column: 1 / -1;
  }

  .index-row-panel ul {
    grid-template-columns: 1fr;
    padding-inline: 0;
  }

  .panel-cta {
    margin-inline: 0;
  }

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

  .writing-row {
    grid-template-columns: 1fr;
    row-gap: 10px;
  }
  .writing-status {
    justify-self: start;
  }
}

@media (max-width: 720px) {
  .menu-toggle { display: block; }

  /* blend-mode header does not work as a solid mobile menu: swap to solid */
  .site-header {
    position: sticky;
    mix-blend-mode: normal;
    color: var(--ink);
    background: var(--paper);
    border-bottom: 1px solid var(--hairline-strong);
    flex-wrap: wrap;
    align-items: center;
    padding-block: 16px 12px;
  }

  .hero {
    padding-top: clamp(56px, 9vh, 90px);
  }

  .site-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    width: 100%;
    padding-block: 22px 10px;
  }

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

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

  .ledger-item + .ledger-item {
    border-left: 0;
    border-top: 1px solid var(--hairline);
    padding-left: 0;
  }

  .hero-lower {
    flex-direction: column;
    align-items: flex-start;
  }

  .credibility li::after {
    margin-inline: 12px;
  }

  .entry { padding-bottom: 30px; }
}