/* ==========================================================================
   Humano Consulting — design system
   Warm paper, editorial serif display, deep teal panels, one warm accent.
   Single stylesheet, no build step. Sections below in this order:
     1. Tokens          5. Buttons & links     9. Bands & splits
     2. Reset & base    6. Header & nav       10. Steps, lists, tables
     3. Layout          7. Hero               11. Forms
     4. Typography      8. Cards & grids      12. Footer, reveal, responsive
   ========================================================================== */

/* -- 1. Tokens ------------------------------------------------------------ */
:root {
  /* Ink & paper */
  --ink: #12191b;
  --ink-soft: #2b3639;
  --muted: #5c6764;
  --paper: #fbf9f5;
  --paper-2: #f3efe7;
  --paper-3: #ebe5da;
  --line: #e2dbd0;
  --line-strong: #cec5b6;

  /* Deep panel + accent */
  --deep: #0e4a44;
  --deep-2: #0a3733;
  --deep-line: rgba(255, 255, 255, 0.16);
  --deep-muted: rgba(240, 250, 247, 0.72);
  --accent: #d2542b;
  --accent-soft: #f5e2d8;

  /* Type */
  --display: 'Newsreader', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

  /* Metrics */
  --wrap: 1180px;
  --wrap-narrow: 780px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section: clamp(4.5rem, 9vw, 8.5rem);
  --radius: 3px;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* -- 2. Reset & base ----------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-feature-settings: 'kern' 1, 'liga' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

::selection {
  background: var(--accent);
  color: #fff;
}

/* Visible focus for keyboard users, never for mouse clicks */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* -- 3. Layout ----------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.narrow { max-width: var(--wrap-narrow); }

section { position: relative; }

.section { padding-block: var(--section); }
.section-tight { padding-block: clamp(3rem, 6vw, 5.5rem); }

.rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* -- 4. Typography ------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.08;
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(2.6rem, 6.4vw, 4.9rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); line-height: 1.2; }
h4 {
  font-family: var(--sans);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.4;
}

p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.4rem;
}

.eyebrow-line {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.eyebrow-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line-strong);
}

.lede {
  font-size: clamp(1.15rem, 1.9vw, 1.4rem);
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 34ch;
}

.lede-wide { max-width: 52ch; }

.prose { max-width: 62ch; }

.prose p,
.body-text { color: var(--ink-soft); }

.small {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.tighter { letter-spacing: -0.03em; }

em.italic-accent {
  font-style: italic;
  color: var(--accent);
}

/* -- 5. Buttons & links --------------------------------------------------- */
a { color: inherit; }

.tlink {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.tlink:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  text-decoration: none;
  padding: 0.95rem 1.6rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
              border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn .arw {
  transition: transform 0.25s var(--ease);
}

.btn:hover .arw { transform: translateX(4px); }

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

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

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}

.btn-ghost:hover {
  border-color: var(--ink);
  background: var(--paper-2);
}

.btn-light {
  background: var(--paper);
  color: var(--ink);
}

.btn-light:hover {
  background: var(--accent);
  color: #fff;
}

.btn-outline-light {
  background: transparent;
  color: var(--paper);
  border-color: var(--deep-line);
}

.btn-outline-light:hover {
  border-color: var(--paper);
  background: rgba(255, 255, 255, 0.07);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.25rem;
}

/* -- 6. Header & nav ----------------------------------------------------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 249, 245, 0.88);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.head-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 76px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
}

.wordmark .mark {
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  line-height: 1;
}

.wordmark .mark .dot { color: var(--accent); }

.wordmark .sub {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  transform: translateY(-1px);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.25rem);
}

.nav a {
  font-size: 0.9375rem;
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav a:hover { color: var(--ink); border-bottom-color: var(--line-strong); }

.nav a[aria-current='page'] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* `.nav a` would otherwise out-specify .btn-primary's colour and render the
   header CTA dark-on-dark, so the button variants are restated here. */
.nav a.btn { padding: 0.7rem 1.2rem; border-bottom: 0; }
.nav a.btn:hover { border-bottom: 0; }

.nav a.btn-primary { color: var(--paper); }
.nav a.btn-primary:hover { color: var(--paper); background: var(--accent); }

.nav a.btn-primary[aria-current='page'] { background: var(--accent); color: #fff; }

.burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
}

.burger span {
  position: relative;
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease);
}

.burger span::before,
.burger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 17px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.25s var(--ease);
}

.burger span::before { top: -5.5px; }
.burger span::after { top: 5.5px; }

.burger[aria-expanded='true'] span { background: transparent; }
.burger[aria-expanded='true'] span::before { transform: translateY(5.5px) rotate(45deg); }
.burger[aria-expanded='true'] span::after { transform: translateY(-5.5px) rotate(-45deg); }

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.mobile-nav.open { display: block; }

.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.5rem var(--gutter) 1.5rem;
}

.mobile-nav li { border-bottom: 1px solid var(--line); }
.mobile-nav li:last-child { border-bottom: 0; }

.mobile-nav a {
  display: block;
  padding: 1rem 0;
  font-family: var(--display);
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--ink);
}

.mobile-nav a[aria-current='page'] { color: var(--accent); }

/* -- 7. Hero -------------------------------------------------------------- */
.hero {
  padding-block: clamp(3.5rem, 8vw, 7rem) clamp(3rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: end;
}

.hero h1 .line { display: block; }

.hero h1 .keyword {
  font-style: italic;
  color: var(--accent);
}

.hero-aside {
  border-left: 1px solid var(--line-strong);
  padding-left: clamp(1.25rem, 2.5vw, 2rem);
}

.hero-aside p {
  color: var(--ink-soft);
  font-size: 1.03rem;
}

/* Three-word stack used on the home hero */
.triad {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.1rem;
  margin: 2.75rem 0 0;
  padding: 0;
  list-style: none;
}

.triad li {
  font-family: var(--display);
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
  color: var(--ink-soft);
  display: inline-flex;
  align-items: baseline;
  gap: 1.1rem;
}

/* A leading marker rather than a separator — a separator dangles at the end of a
   line whenever the list wraps. */
.triad li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  transform: translateY(-4px);
  flex: none;
}

/* -- 8. Cards & grids ---------------------------------------------------- */
.grid {
  display: grid;
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 2.6vw, 2.1rem);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.card p { color: var(--muted); font-size: 0.98rem; }

.card .num {
  font-family: var(--display);
  font-size: 0.95rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.card-flat {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 1.75rem 0 0;
}

.card-flat:hover { transform: none; }

/* Practice blocks — used on /services */
.practice {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  padding-block: clamp(2.75rem, 5vw, 4.25rem);
  border-top: 1px solid var(--line);
}

.practice:first-of-type { border-top: 0; padding-top: 0; }

.practice-head .num {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.practice-head h2 { font-size: clamp(1.75rem, 3vw, 2.35rem); }

.practice-head .tag {
  margin-top: 1.1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.ticks {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.ticks li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 0.98rem;
  color: var(--ink-soft);
}

.ticks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--accent);
  border-radius: 50%;
}

.ticks-tight li { font-size: 0.94rem; }

/* -- 9. Bands & splits --------------------------------------------------- */
.band {
  background: var(--deep);
  color: var(--paper);
  padding-block: var(--section);
}

.band h2,
.band h3 { color: #fff; }

.band p { color: var(--deep-muted); }

.band .eyebrow { color: #7fd4c4; }

.band .eyebrow-line::after { background: var(--deep-line); }

.band .lede { color: rgba(255, 255, 255, 0.92); }

.band-tight { padding-block: clamp(3.25rem, 6vw, 5.5rem); }

.band-2 { background: var(--deep-2); }

.tint { background: var(--paper-2); }

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.split-lead { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); }

.sticky-head {
  position: sticky;
  top: 108px;
}

/* Pull-quote style statement */
.statement {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 26ch;
}

.statement .hl {
  font-style: italic;
  color: var(--accent);
}

.band .statement .hl { color: #f2a184; }

/* -- 10. Steps, lists, tables -------------------------------------------- */
.steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.steps > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
  padding-block: clamp(1.75rem, 3vw, 2.5rem);
  border-top: 1px solid var(--line);
}

.steps > li:last-child { border-bottom: 1px solid var(--line); }

.steps > li::before {
  content: '0' counter(step);
  font-family: var(--display);
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
  padding-top: 0.2rem;
}

.band .steps > li { border-color: var(--deep-line); }
.band .steps > li:last-child { border-bottom-color: var(--deep-line); }
.band .steps > li::before { color: #7fd4c4; }

.steps h3 { margin-bottom: 0.5rem; }
.steps p { color: var(--muted); }
.band .steps p { color: var(--deep-muted); }

.dl {
  margin: 0;
  display: grid;
  gap: 0;
}

.dl > div {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
}

.dl > div:last-child { border-bottom: 1px solid var(--line); }

.dl dt {
  font-family: var(--display);
  font-size: 1.2rem;
  letter-spacing: -0.015em;
}

.dl dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 2px;
  padding: 0.3rem 0.55rem;
  margin-bottom: 0.9rem;
}

/* -- 11. Forms ----------------------------------------------------------- */
.enquiry {
  display: grid;
  gap: 1.25rem;
  margin-top: 2rem;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

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

.field label {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.field .hint {
  color: var(--muted);
  font-weight: 400;
}

.field input,
.field select,
.field textarea {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  width: 100%;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field textarea {
  min-height: 150px;
  resize: vertical;
  line-height: 1.55;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 0;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(210, 84, 43, 0.13);
}

.field input[aria-invalid='true'],
.field textarea[aria-invalid='true'] {
  border-color: #b3341a;
}

.form-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

.form-status {
  font-size: 0.95rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
}

.form-status[hidden] { display: none; }

/* -- 12. Footer, reveal, responsive -------------------------------------- */
.site-foot {
  background: var(--ink);
  color: rgba(251, 249, 245, 0.74);
  padding-block: clamp(3.25rem, 6vw, 5rem) 2rem;
  font-size: 0.94rem;
}

.foot-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
}

.site-foot .wordmark { color: var(--paper); }
.site-foot .wordmark .sub { color: rgba(251, 249, 245, 0.55); }

.site-foot h4 {
  color: var(--paper);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.site-foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.site-foot a {
  text-decoration: none;
  color: rgba(251, 249, 245, 0.74);
  transition: color 0.2s var(--ease);
}

.site-foot a:hover { color: var(--accent); }

.foot-blurb {
  margin-top: 1.25rem;
  max-width: 34ch;
  color: rgba(251, 249, 245, 0.6);
  font-size: 0.92rem;
}

.foot-base {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(251, 249, 245, 0.5);
}

.foot-base p { margin: 0; }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; }
}

/* Tablet */
@media (max-width: 1000px) {
  .cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sticky-head { position: static; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .burger { display: inline-flex; }

  .hero-grid,
  .practice,
  .split,
  .split-lead { grid-template-columns: minmax(0, 1fr); }

  .hero-aside {
    border-left: 0;
    border-top: 1px solid var(--line-strong);
    padding-left: 0;
    padding-top: 1.75rem;
  }

  .lede { max-width: 46ch; }
  .statement { max-width: 34ch; }
  .cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Mobile */
@media (max-width: 620px) {
  body { font-size: 1rem; }

  .cols-2,
  .cols-3,
  .cols-4,
  .field-row { grid-template-columns: minmax(0, 1fr); }

  .dl > div,
  .steps > li { grid-template-columns: minmax(0, 1fr); gap: 0.6rem; }

  .steps > li::before { padding-top: 0; }

  .foot-grid { grid-template-columns: minmax(0, 1fr); }

  .btn { width: 100%; justify-content: space-between; }
  .btn-row { gap: 0.7rem; }

  .triad li { gap: 0.8rem; }
}