/* =========================================================
   Nosta Consulting - shared design system
   Locked brand: navy #1B2A4A on cream #F5EFE3, ink #1A1A1A.
   Type: DM Serif Display (display) / DM Sans (everything else).
   Composition: navy frame (navy hero + flagship block + footer,
   cream body). Two-ink palette; navy IS the accent.
   Shape rule: buttons are pills, surfaces are square hairlines,
   inputs are underlines.
   ========================================================= */

:root {
  /* Locked brand colors (hex per brand guide) */
  --paper:        #F5EFE3;                       /* cream */
  --paper-2:      #F0EFEA;                       /* off-white */
  --navy:         #1B2A4A;
  --ink:          #1A1A1A;

  /* Derived tones */
  --navy-2:       oklch(0.42 0.05 262);          /* muted body on cream */
  --muted:        oklch(0.5 0.032 262);
  --rule:         oklch(0.3 0.06 262 / 0.16);
  --rule-strong:  oklch(0.3 0.06 262 / 0.34);
  --on-navy:      #F5EFE3;
  --on-navy-muted: oklch(0.93 0.015 92 / 0.68);
  --on-navy-rule:  oklch(0.95 0.017 92 / 0.18);
  --navy-raise:   oklch(0.34 0.062 262);         /* hover surface on navy */

  --serif: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --sans:  'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  /* Legacy aliases kept for interior pages */
  --exp:   var(--serif);
  --mono:  var(--sans);

  --t-hero:  clamp(2.6rem, 6.5vw, 5.25rem);
  --t-h2:    clamp(2rem, 4.2vw, 3.2rem);
  --t-h3:    clamp(1.25rem, 1.9vw, 1.55rem);
  --t-lead:  clamp(1.05rem, 1.5vw, 1.25rem);

  --max: 1280px;
  --reading: 740px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
::selection { background: var(--navy); color: var(--on-navy); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; border-radius: 2px; }
.hero :focus-visible, .flagship :focus-visible, footer :focus-visible { outline-color: var(--on-navy); }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.is-resizing * { transition: none !important; }

/* Small label (legacy .mono / .idx used by interior pages) */
.mono { font-family: var(--sans); font-size: 0.78rem; font-weight: 500; letter-spacing: 0.04em; color: var(--muted); }
.idx { font-family: var(--sans); font-weight: 600; color: var(--navy); font-size: 0.78rem; letter-spacing: 0.04em; }

/* Section scaffolding */
.section { padding: clamp(3.5rem, 8vw, 7.5rem) 0; }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { margin-bottom: clamp(1.75rem, 5vw, 4rem); max-width: 46rem; }
.section-title { font-family: var(--serif); font-weight: 400; font-size: var(--t-h2); line-height: 1.08; letter-spacing: -0.01em; color: var(--navy); }
.section-sub { font-size: var(--t-lead); color: var(--navy-2); max-width: 52ch; margin-top: 1.1rem; line-height: 1.55; }

/* Buttons: pills */
.btn { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--sans); font-weight: 600; font-size: 0.95rem; padding: 0.9rem 1.75rem; border-radius: 999px; cursor: pointer; transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.12s var(--ease); }
.btn:active, .nav-cta:active, .form-submit:active, .btn-cta:active { transform: translateY(1px); }
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn-primary { background: var(--navy); color: var(--on-navy); border: 1px solid var(--navy); }
.btn-secondary { background: transparent; color: var(--navy); border: 1px solid var(--rule-strong); }
@media (hover: hover) {
  .btn-primary:hover { background: var(--ink); border-color: var(--ink); }
  .btn-secondary:hover { border-color: var(--navy); }
  .btn:hover .arrow { transform: translateX(4px); }
}
/* Button variants on navy surfaces */
.btn-cream { background: var(--on-navy); color: var(--navy); border: 1px solid var(--on-navy); }
.btn-ghost { background: transparent; color: var(--on-navy); border: 1px solid oklch(0.95 0.017 92 / 0.45); }
@media (hover: hover) {
  .btn-cream:hover { background: var(--paper-2); }
  .btn-ghost:hover { border-color: var(--on-navy); }
}

/* NAV: solid navy across all pages */
nav { position: sticky; top: 0; z-index: 100; background: var(--navy); transition: box-shadow 0.3s var(--ease); }
nav.scrolled { box-shadow: 0 1px 0 oklch(0.95 0.017 92 / 0.14), 0 8px 24px oklch(0.2 0.05 262 / 0.25); }
nav .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 0.65rem; }
.nav-logo-img { width: 32px; height: 32px; object-fit: contain; background: var(--paper); border-radius: 50%; }
.nav-logo-text { font-family: var(--serif); font-weight: 400; font-size: 1.15rem; letter-spacing: 0.02em; color: var(--on-navy); }
.nav-links { display: flex; list-style: none; gap: 2rem; align-items: center; }
.nav-links > li > a { font-size: 0.88rem; font-weight: 500; color: var(--on-navy-muted); position: relative; padding: 0.25rem 0; transition: color 0.18s var(--ease); }
.nav-links > li > a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px; background: var(--on-navy); transition: width 0.25s var(--ease); }
.nav-links > li > a[aria-current="page"] { color: var(--on-navy); font-weight: 600; }
.nav-links > li > a[aria-current="page"]::after { width: 100%; }
@media (hover: hover) { .nav-links > li > a:hover { color: var(--on-navy); } .nav-links > li > a:hover::after { width: 100%; } }
.nav-cta, .nav-links > li > a.nav-cta { display: inline-block; background: var(--on-navy); color: var(--navy) !important; padding: 0.55rem 1.4rem; font-size: 0.84rem; font-weight: 600; border-radius: 999px; white-space: nowrap; transition: background 0.18s var(--ease), transform 0.12s var(--ease); }
.nav-cta::after { display: none !important; }
@media (hover: hover) { .nav-cta:hover { background: var(--paper-2); } }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--on-navy); margin: 5px 0; transition: transform 0.3s var(--ease), opacity 0.2s; }
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 900px) {
  .mobile-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; background: var(--navy); flex-direction: column; align-items: flex-start; padding: 1.75rem var(--gutter) 2rem; border-bottom: 1px solid var(--on-navy-rule); gap: 1.4rem; }
  .nav-links.open { display: flex; }
  .nav-cta, .nav-links > li > a.nav-cta { width: 100%; text-align: center; }
  .nav-links > li:last-child { width: 100%; }
}

/* ====================== HERO (navy) ====================== */
.hero { background: var(--navy); color: var(--on-navy); padding: clamp(3.5rem, 7vw, 6rem) 0 clamp(3.5rem, 6vw, 5rem); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 5vw, 4rem); align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.15fr 1fr; } }
.hero-title { font-family: var(--serif); font-weight: 400; font-size: var(--t-hero); line-height: 1.06; letter-spacing: -0.01em; color: var(--on-navy); text-wrap: balance; padding-bottom: 0.25rem; }
.hero-title em { font-style: italic; }
.hero-lead { font-size: var(--t-lead); color: var(--on-navy-muted); line-height: 1.6; max-width: 44ch; margin-top: 1.5rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2.25rem; }
.hero-art { min-width: 0; }
.hero-art svg { width: 100%; height: auto; display: block; }

/* Wave rule: the monogram swash as a section divider mark */
.wave-rule { display: block; width: 120px; height: 18px; margin-bottom: 1.75rem; }
.wave-rule path { stroke: var(--on-navy); stroke-width: 2; fill: none; opacity: 0.85; }
.wave-rule.on-cream path { stroke: var(--navy); }

/* Stat strip directly under the hero */
.stat-strip { border-bottom: 1px solid var(--rule); }
.stat-strip .container { display: grid; grid-template-columns: 1fr; }
@media (min-width: 720px) { .stat-strip .container { grid-template-columns: repeat(3, 1fr); } }
.strip-stat { padding: clamp(1.5rem, 3vw, 2.25rem) 0; display: flex; align-items: baseline; gap: 1rem; border-bottom: 1px solid var(--rule); }
.strip-stat:last-child { border-bottom: none; }
@media (min-width: 720px) {
  .strip-stat { border-bottom: none; border-right: 1px solid var(--rule); padding-right: 2rem; }
  .strip-stat + .strip-stat { padding-left: 2rem; }
  .strip-stat:last-child { border-right: none; padding-right: 0; }
}
.strip-stat .figure { font-family: var(--serif); font-size: clamp(1.9rem, 3vw, 2.5rem); color: var(--navy); line-height: 1; }
.strip-stat .label { font-size: 0.88rem; color: var(--muted); line-height: 1.35; max-width: 18ch; }

/* ====================== Services grid ====================== */
.svc-grid { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--rule-strong); }
@media (min-width: 640px) { .svc-grid { grid-template-columns: 1fr 1fr; } }
.svc-cell { padding: clamp(1.5rem, 3.5vw, 2.75rem) 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 640px) {
  .svc-cell:nth-child(odd) { padding-right: clamp(1.5rem, 3vw, 3rem); border-right: 1px solid var(--rule); }
  .svc-cell:nth-child(even) { padding-left: clamp(1.5rem, 3vw, 3rem); }
}
.svc-cell h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--navy); line-height: 1.15; margin-bottom: 0.7rem; }
.svc-cell p { color: var(--navy-2); font-size: 0.98rem; line-height: 1.6; max-width: 52ch; }
.svc-cell .deliverable { display: block; margin-top: 0.85rem; font-size: 0.85rem; font-weight: 600; color: var(--navy); }

/* Tools row */
.tools { margin-top: clamp(2rem, 4vw, 3rem); display: flex; flex-wrap: wrap; gap: 0.75rem 0; align-items: center; }
.tools .mono { margin-right: 1.5rem; }
.tool-tag { font-size: 0.84rem; font-weight: 500; color: var(--navy-2); padding: 0.35rem 0.95rem; border: 1px solid var(--rule); border-radius: 999px; margin: 0 0.5rem 0.5rem 0; transition: border-color 0.18s var(--ease), color 0.18s var(--ease); }
@media (hover: hover) { .tool-tag:hover { border-color: var(--navy); color: var(--navy); } }

/* ====================== Flagship (navy block) ====================== */
.flagship { background: var(--navy); color: var(--on-navy); padding: clamp(3.5rem, 8vw, 7.5rem) 0; }
.flagship-head { max-width: 46rem; margin-bottom: clamp(1.75rem, 5vw, 4rem); }
.flagship-kicker { display: inline-block; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--on-navy-muted); border: 1px solid var(--on-navy-rule); border-radius: 999px; padding: 0.4rem 1rem; margin-bottom: 1.5rem; }
.flagship-head h2 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h2); line-height: 1.08; color: var(--on-navy); }
.flagship-head p { font-size: var(--t-lead); color: var(--on-navy-muted); max-width: 50ch; margin-top: 1.1rem; line-height: 1.55; }
.agent-grid { display: grid; grid-template-columns: 1fr; border-top: 1px solid var(--on-navy-rule); }
@media (min-width: 640px) { .agent-grid { grid-template-columns: 1fr 1fr; } }
.agent-cell { padding: clamp(1.5rem, 3.5vw, 2.75rem) 0; border-bottom: 1px solid var(--on-navy-rule); transition: background 0.25s var(--ease); }
@media (min-width: 640px) {
  .agent-cell:nth-child(odd) { padding-right: clamp(1.5rem, 3vw, 3rem); border-right: 1px solid var(--on-navy-rule); }
  .agent-cell:nth-child(even) { padding-left: clamp(1.5rem, 3vw, 3rem); }
}
.agent-cell h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--on-navy); line-height: 1.15; margin-bottom: 0.7rem; }
.agent-cell p { color: var(--on-navy-muted); font-size: 0.98rem; line-height: 1.6; max-width: 50ch; }
.flagship-cta { margin-top: clamp(2rem, 4vw, 3rem); display: flex; gap: 1rem; flex-wrap: wrap; }

/* ====================== Process (vertical timeline) ====================== */
.steps { border-top: 1px solid var(--rule-strong); max-width: 56rem; }
.step { display: grid; grid-template-columns: 3rem 1fr; gap: 0.6rem 1rem; align-items: baseline; padding: clamp(1.5rem, 3.5vw, 2.5rem) 0; border-bottom: 1px solid var(--rule); }
.step p { grid-column: 2; }
@media (min-width: 720px) { .step { grid-template-columns: 6rem 14rem 1fr; gap: 0.75rem 2.5rem; align-items: start; } .step p { grid-column: auto; } }
.step .step-count { font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3rem); color: var(--navy); line-height: 1; opacity: 0.35; }
.step h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--navy); line-height: 1.1; }
.step p { color: var(--navy-2); font-size: 0.98rem; line-height: 1.6; max-width: 52ch; }

/* ====================== Results / case studies ====================== */
.case { display: grid; grid-template-columns: 1fr; gap: 1.25rem 3.5rem; padding: clamp(2rem, 4vw, 3rem) 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 860px) { .case { grid-template-columns: 1fr 1.5fr; } }
.case:first-of-type { border-top: 1px solid var(--rule-strong); }
.case-head .ctype { font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 0.6rem; }
.case-head h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2.1rem); color: var(--navy); line-height: 1.1; }
.case-body p { color: var(--navy-2); font-size: 1rem; line-height: 1.65; margin-bottom: 1.25rem; }
.case-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.case-tags span { font-size: 0.8rem; font-weight: 500; color: var(--muted); border: 1px solid var(--rule); padding: 0.25rem 0.8rem; border-radius: 999px; }
.figures { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin-top: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 720px) { .figures { grid-template-columns: repeat(4, 1fr); } }
.figure-cell { padding: clamp(1.25rem, 2.5vw, 1.75rem) clamp(1rem, 2vw, 1.5rem) clamp(1.25rem, 2.5vw, 1.75rem) 0; border-right: 1px solid var(--rule); }
.figure-cell:nth-child(2n) { border-right: none; padding-left: clamp(1rem, 2vw, 1.5rem); }
@media (min-width: 720px) {
  .figure-cell:nth-child(2n) { border-right: 1px solid var(--rule); padding-left: 0; }
  .figure-cell + .figure-cell { padding-left: clamp(1rem, 2vw, 1.5rem); }
  .figure-cell:last-child { border-right: none; }
}
.figure-cell .big { font-family: var(--serif); font-size: clamp(2rem, 4vw, 2.9rem); color: var(--navy); line-height: 1; }
.figure-cell .big em { font-style: normal; }
.figure-cell .cap { font-size: 0.86rem; color: var(--muted); margin-top: 0.7rem; line-height: 1.4; }

/* ====================== About ====================== */
.about-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 4.5rem); }
@media (min-width: 900px) { .about-grid { grid-template-columns: 1.05fr 1fr; } }
.about-statement { font-family: var(--serif); font-weight: 400; font-size: clamp(1.6rem, 3vw, 2.4rem); line-height: 1.18; color: var(--navy); padding-bottom: 0.25rem; }
.about-statement em { font-style: italic; }
.about-body p { color: var(--navy-2); font-size: 1rem; line-height: 1.7; margin-bottom: 1.1rem; }
.about-values { margin-top: 2rem; border-top: 1px solid var(--rule); }
.about-value { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--rule); }
.about-value h4 { font-family: var(--serif); font-weight: 400; font-size: 1.05rem; color: var(--navy); }
.about-value p { font-size: 0.92rem; color: var(--muted); }

/* ====================== Blog list rows ====================== */
.svc-list, .blog-list { border-top: 1px solid var(--rule-strong); }
.blog-row { display: grid; grid-template-columns: 1fr; gap: 0.5rem 2rem; padding: clamp(1.5rem, 3vw, 2rem) 0; border-bottom: 1px solid var(--rule); position: relative; transition: background 0.25s var(--ease); }
@media (min-width: 760px) { .blog-row { grid-template-columns: 10rem 1.3fr auto; align-items: baseline; } }
.blog-row .meta { display: flex; flex-direction: column; gap: 0.3rem; }
.blog-row .tag { font-size: 0.8rem; font-weight: 600; color: var(--navy); }
.blog-row .date { font-size: 0.8rem; color: var(--muted); }
.blog-row h2, .blog-row h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.15rem, 1.9vw, 1.5rem); line-height: 1.25; color: var(--navy); }
.blog-row p { color: var(--muted); font-size: 0.92rem; line-height: 1.55; margin-top: 0.5rem; max-width: 54ch; }
.blog-row .more { font-size: 0.84rem; font-weight: 600; color: var(--muted); white-space: nowrap; transition: color 0.18s var(--ease); }
.blog-row .arrow { transition: transform 0.25s var(--ease); display: inline-block; }
@media (hover: hover) {
  .blog-row::before { content: ""; position: absolute; inset: 0 calc(-1 * var(--gutter)); background: var(--paper-2); opacity: 0; transition: opacity 0.25s var(--ease); z-index: -1; }
  .blog-row:hover::before { opacity: 1; }
  .blog-row:hover h2, .blog-row:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
  .blog-row:hover .more { color: var(--navy); }
  .blog-row:hover .arrow { transform: translateX(4px); }
}
.blog-cta { margin-top: 2.5rem; }

/* Legacy numbered service rows (interior pages) */
.svc-row { display: grid; grid-template-columns: 1fr; gap: 0.5rem 2rem; padding: clamp(1.75rem, 3vw, 2.5rem) 0; border-bottom: 1px solid var(--rule); position: relative; }
@media (min-width: 760px) { .svc-row { grid-template-columns: 4rem 1.1fr 1.4fr; align-items: start; } }
.svc-row .num { font-family: var(--serif); font-size: 1.1rem; color: var(--navy); opacity: 0.5; padding-top: 0.15rem; }
.svc-row h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--navy); }
.svc-row p { color: var(--navy-2); font-size: 0.98rem; line-height: 1.6; max-width: 48ch; }

/* Systems (products page) */
.system-row { display: grid; grid-template-columns: 1fr; gap: 0.85rem 2.5rem; padding: clamp(2rem, 3.5vw, 3rem) 0; border-bottom: 1px solid var(--rule); position: relative; transition: background 0.25s var(--ease); }
.system-row:first-child { border-top: 1px solid var(--rule-strong); }
@media (min-width: 820px) { .system-row { grid-template-columns: 4rem 1fr 1.3fr; align-items: start; } }
.system-row .num { font-family: var(--serif); font-size: 1.1rem; color: var(--navy); opacity: 0.5; padding-top: 0.2rem; }
.system-row .sys-name h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--navy); margin-bottom: 0.85rem; }
.system-row .stack { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.system-row .stack span { font-size: 0.76rem; font-weight: 500; color: var(--muted); border: 1px solid var(--rule); padding: 0.2rem 0.7rem; border-radius: 999px; }
.system-row .sys-desc p { color: var(--navy-2); font-size: 1rem; line-height: 1.6; margin-bottom: 0.85rem; }
.system-row .outcome { font-size: 0.85rem; font-weight: 600; color: var(--navy); display: inline-flex; align-items: center; gap: 0.5rem; }
.system-row .outcome::before { content: "→"; }
@media (hover: hover) {
  .system-row::before { content: ""; position: absolute; inset: 0 calc(-1 * var(--gutter)); background: var(--paper-2); opacity: 0; transition: opacity 0.25s var(--ease); z-index: -1; }
  .system-row:hover::before { opacity: 1; }
}

/* Legacy 3-col process grid (interior pages) */
.process-grid { display: grid; grid-template-columns: 1fr; gap: 0; border-top: 1px solid var(--rule-strong); }
@media (min-width: 820px) { .process-grid { grid-template-columns: repeat(3, 1fr); } }
.process-step { padding: clamp(1.75rem, 3vw, 2.5rem) clamp(1.25rem, 2.5vw, 2rem) clamp(1.75rem, 3vw, 2.5rem) 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 820px) { .process-step { border-bottom: none; border-right: 1px solid var(--rule); } .process-step:last-child { border-right: none; padding-right: 0; } }
.process-step .num { font-family: var(--serif); font-size: clamp(2.4rem, 5vw, 3.5rem); color: var(--navy); opacity: 0.3; line-height: 1; margin-bottom: 1.1rem; }
.process-step h3 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h3); color: var(--navy); margin-bottom: 0.85rem; }
.process-step p { color: var(--navy-2); font-size: 0.95rem; line-height: 1.6; }

/* ====================== Page header (interior pages) ====================== */
.page-header { padding: clamp(3.5rem, 7vw, 6rem) 0 clamp(2.5rem, 4vw, 3.5rem); border-bottom: 1px solid var(--rule); }
.page-header .idx { display: block; margin-bottom: 1.5rem; }
.page-header h1 { font-family: var(--serif); font-weight: 400; font-size: var(--t-hero); line-height: 1.05; color: var(--navy); max-width: 18ch; text-wrap: balance; }
.page-header .lead { font-size: var(--t-lead); color: var(--navy-2); max-width: 52ch; margin-top: 1.5rem; line-height: 1.55; }

/* ====================== Article / post ====================== */
.post-body { padding: clamp(3rem, 6vw, 5rem) 0 clamp(4rem, 8vw, 6.5rem); }
.post-body .container { max-width: var(--reading); }
.back-link { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; font-weight: 600; color: var(--muted); margin-bottom: 2rem; transition: color 0.18s var(--ease); }
@media (hover: hover) { .back-link:hover { color: var(--navy); } }
.post-header { padding: clamp(3rem, 6vw, 5rem) 0 clamp(2rem, 3.5vw, 3rem); border-bottom: 1px solid var(--rule); }
.post-header .container { max-width: var(--reading); }
.post-header .kicker { font-size: 0.84rem; font-weight: 600; color: var(--navy); margin-bottom: 1.1rem; }
.post-header h1 { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.1; color: var(--navy); margin-bottom: 1.5rem; text-wrap: balance; }
.post-meta { display: flex; gap: 1.5rem; flex-wrap: wrap; font-size: 0.84rem; color: var(--muted); }
.post-body article > p, .post-body .container > p { margin-bottom: 1.3rem; font-size: 1.05rem; line-height: 1.7; color: var(--navy-2); }
.post-body h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 1.95rem); color: var(--navy); line-height: 1.15; margin: 2.75rem 0 1rem; }
.post-body h3 { font-family: var(--serif); font-weight: 400; font-size: 1.3rem; color: var(--navy); margin: 2rem 0 0.75rem; }
.post-body ul, .post-body ol { padding-left: 1.4rem; margin-bottom: 1.4rem; }
.post-body li { margin-bottom: 0.6rem; font-size: 1.02rem; line-height: 1.65; color: var(--navy-2); }
.post-body strong { color: var(--ink); font-weight: 700; }
.post-body a { color: var(--navy); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; transition: opacity 0.18s var(--ease); }
@media (hover: hover) { .post-body a:hover { opacity: 0.7; } }

/* TOC */
.toc { border: 1px solid var(--rule-strong); padding: 1.5rem 1.75rem; margin: 2.5rem 0; background: var(--paper-2); }
.toc h4 { font-family: var(--serif); font-weight: 400; font-size: 1.05rem; color: var(--navy); margin-bottom: 1rem; }
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.toc li { margin-bottom: 0.55rem; font-size: 0.92rem; padding-left: 2.2rem; position: relative; counter-increment: toc; }
.toc li::before { content: counter(toc, decimal-leading-zero); position: absolute; left: 0; font-size: 0.78rem; font-weight: 600; color: var(--navy); opacity: 0.55; top: 0.15rem; }
.toc a { color: var(--navy-2); text-decoration: none; }
@media (hover: hover) { .toc a:hover { color: var(--navy); } }

/* Callout */
.callout { border: 1px solid var(--rule-strong); background: var(--paper-2); padding: 1.6rem 1.75rem; margin: 2.25rem 0; position: relative; }
.callout::before { content: "Note"; display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--navy); margin-bottom: 0.65rem; }
.callout p { margin: 0; font-size: 1rem; line-height: 1.65; color: var(--navy-2); }

/* Phases */
.phase { display: grid; grid-template-columns: 3rem 1fr; gap: 1.25rem; padding: 1.5rem 0; border-bottom: 1px solid var(--rule); align-items: start; }
.phase:first-of-type { border-top: 1px solid var(--rule); }
.phase-num { font-family: var(--serif); font-size: 1.6rem; color: var(--navy); opacity: 0.5; line-height: 1.1; }
.phase-content h3 { font-family: var(--serif); font-weight: 400; font-size: 1.2rem; color: var(--navy); margin: 0 0 0.5rem; }
.phase-content p { margin: 0; font-size: 1rem; line-height: 1.65; color: var(--navy-2); }

/* Checklist */
.checklist { border: 1px solid var(--rule-strong); padding: 1.75rem 2rem; margin: 2rem 0; }
.checklist h3 { font-family: var(--serif); font-weight: 400; font-size: 1.15rem; color: var(--navy); margin: 0 0 1rem; }
.checklist ul { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 0.6rem 0 0.6rem 2rem; border-bottom: 1px solid var(--rule); font-size: 0.98rem; position: relative; color: var(--navy-2); }
.checklist li:last-child { border-bottom: none; }
.checklist li::before { content: ""; position: absolute; left: 0; top: 0.85rem; width: 14px; height: 14px; border: 1.5px solid var(--navy); border-radius: 50%; }

/* FAQ */
.faq { margin: 3rem 0; }
.faq h2 { margin-bottom: 1rem; }
.faq-item { border-bottom: 1px solid var(--rule); padding: 1.3rem 0; }
.faq-item h3 { font-family: var(--serif); font-weight: 400; font-size: 1.15rem; color: var(--navy); margin: 0 0 0.5rem; }
.faq-item p { font-size: 0.98rem; color: var(--navy-2); margin: 0; line-height: 1.6; }

/* Post CTA */
.post-cta { background: var(--navy); color: var(--on-navy); padding: clamp(2rem, 4vw, 3rem); margin: 3.5rem 0; }
.post-cta h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2rem); color: var(--on-navy); margin-bottom: 0.85rem; }
.post-cta p { color: var(--on-navy-muted); margin-bottom: 1.75rem; max-width: 48ch; line-height: 1.6; }
.btn-cta { display: inline-flex; align-items: center; gap: 0.6rem; background: var(--on-navy); color: var(--navy); font-weight: 600; text-decoration: none; padding: 0.9rem 1.8rem; border-radius: 999px; font-size: 0.95rem; transition: background 0.18s var(--ease), transform 0.12s var(--ease); }
.btn-cta .arrow { transition: transform 0.25s var(--ease); }
.post-body .btn-cta { color: var(--navy); text-decoration: none; }
@media (hover: hover) {
  .btn-cta:hover, .post-body .btn-cta:hover { background: var(--paper-2); }
  .btn-cta:hover .arrow { transform: translateX(4px); }
}

/* Related */
.related { margin: 3rem 0 0; padding-top: 2rem; border-top: 1px solid var(--rule-strong); }
.related h4 { font-family: var(--serif); font-weight: 400; font-size: 1.05rem; color: var(--navy); margin-bottom: 1rem; }
.related a { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; font-family: var(--serif); font-size: 1.08rem; color: var(--navy); padding: 0.9rem 0; border-bottom: 1px solid var(--rule); transition: opacity 0.18s var(--ease); }
.related a:last-child { border-bottom: none; }
.related a::after { content: "→"; color: var(--navy); transition: transform 0.25s var(--ease); }
@media (hover: hover) { .related a:hover { opacity: 0.7; } .related a:hover::after { transform: translateX(4px); } }

/* ====================== Contact ====================== */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 5vw, 4.5rem); }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1.1fr; } }
.contact-info h2 { font-family: var(--serif); font-weight: 400; font-size: var(--t-h2); color: var(--navy); line-height: 1.08; margin-bottom: 1.25rem; }
.contact-info > p { font-size: 1.05rem; color: var(--navy-2); line-height: 1.6; margin-bottom: 2.25rem; max-width: 42ch; }
.contact-detail { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; padding: 1rem 0; border-top: 1px solid var(--rule); }
.contact-detail:last-child { border-bottom: 1px solid var(--rule); }
.contact-detail h4 { font-size: 0.85rem; font-weight: 600; color: var(--muted); }
.contact-detail a, .contact-detail p { font-size: 0.95rem; color: var(--navy); }
.contact-detail a { border-bottom: 1px solid var(--rule-strong); transition: border-color 0.18s var(--ease); }
@media (hover: hover) { .contact-detail a:hover { border-color: var(--navy); } }
.contact-form { display: flex; flex-direction: column; gap: 1.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: var(--navy); }
.form-group input, .form-group select, .form-group textarea { font-family: var(--sans); font-size: 0.95rem; color: var(--ink); background: transparent; border: none; border-bottom: 1px solid var(--rule-strong); padding: 0.65rem 0; border-radius: 0; transition: border-color 0.2s var(--ease); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--muted); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-bottom-color: var(--navy); }
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group select { cursor: pointer; }
.form-submit { align-self: flex-start; margin-top: 0.5rem; background: var(--navy); color: var(--on-navy); border: 1px solid var(--navy); padding: 0.95rem 2.2rem; border-radius: 999px; font-family: var(--sans); font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: background 0.18s var(--ease), transform 0.12s var(--ease); }
@media (hover: hover) { .form-submit:hover { background: var(--ink); border-color: var(--ink); } }
.form-status { margin-top: 0.85rem; font-size: 0.9rem; color: var(--navy); min-height: 1.2em; }
.form-status.error { color: oklch(0.45 0.14 25); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ====================== Footer (navy) ====================== */
footer { background: var(--navy); color: var(--on-navy-muted); padding: clamp(3.5rem, 6vw, 5rem) 0 2.5rem; }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid var(--on-navy-rule); }
@media (min-width: 760px) { .footer-top { grid-template-columns: 1.4fr 2fr; } }
.footer-brand .nav-logo-text { color: var(--on-navy); }
.footer-brand p { font-size: 0.92rem; margin-top: 0.85rem; max-width: 32ch; line-height: 1.6; }
.footer-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 2rem; }
.footer-col h4 { font-family: var(--serif); font-weight: 400; font-size: 1rem; color: var(--on-navy); margin-bottom: 1rem; }
.footer-col a { display: block; color: var(--on-navy-muted); font-size: 0.88rem; padding: 0.3rem 0; transition: color 0.18s var(--ease); }
@media (hover: hover) { .footer-col a:hover { color: var(--on-navy); } }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 2rem; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.82rem; color: var(--on-navy-muted); }
.footer-social { display: flex; gap: 1rem; }
.footer-social a { color: var(--on-navy-muted); transition: color 0.18s var(--ease); }
@media (hover: hover) { .footer-social a:hover { color: var(--on-navy); } }

/* ====================== Motion ======================
   Reveal is progressive enhancement: elements are VISIBLE by
   default. Only when JS marks <html class="js"> do they start
   hidden, and site.js both reveals on scroll AND force-reveals
   on a fallback timer. Content can never stay invisible. */
@media (prefers-reduced-motion: no-preference) {
  html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
  html.js .reveal.in { opacity: 1; transform: none; }
  html.js [data-stagger] > * { opacity: 0; transform: translateY(18px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
  html.js [data-stagger].in > * { opacity: 1; transform: none; }

  /* Hero load-in: pure CSS, runs with or without JS */
  .hero-title, .hero-lead, .hero-actions { animation: heroIn 0.9s var(--ease) both; }
  .hero-lead { animation-delay: 0.12s; }
  .hero-actions { animation-delay: 0.22s; }
  .hero-art { animation: heroIn 1.1s var(--ease) 0.3s both; }
  @keyframes heroIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
}