/* =========================================================
   Aldworth & Partners — Stylesheet
   Design system: serif display (Playfair Display) for headlines
   + grotesk (Inter) for body/UI. Green/gold brand palette.
   ========================================================= */

:root {
  --green: #2F4329;
  --green-ink: #1D2919;
  --gold: #C6B053;
  --gold-light: #DDC98C;
  --paper: #FBFAF7;
  --white: #FEFEFE;
  --stone: #E7E4DC;
  --green-06: rgba(47, 67, 41, 0.06);
  --green-10: rgba(47, 67, 41, 0.10);
  --green-40: rgba(47, 67, 41, 0.40);

  --font-display: "Playfair Display", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --gutter: clamp(1.5rem, 5vw, 4rem);
  --section-pad: clamp(4.5rem, 9vw, 9rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--green-ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-display); font-weight: 600; color: var(--green); letter-spacing: -0.01em; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; font-size: 1rem; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- Layout helpers ---------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.section {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}
.section--tight { padding-top: calc(var(--section-pad) * 0.6); padding-bottom: calc(var(--section-pad) * 0.6); }
.section--stone { background: var(--stone); }
.section--green { background: var(--green); color: var(--white); }
.section--green h1, .section--green h2, .section--green h3 { color: var(--white); }
.hairline { border: none; border-top: 1px solid rgba(47, 67, 41, 0.18); margin: 0; }
.hairline--light { border-top-color: rgba(254, 254, 254, 0.25); }

/* Eyebrow label with gold hairline flanks, echoing the logo's "& PARTNERS" treatment */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.eyebrow::before,
.eyebrow::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--gold);
  max-width: 3rem;
}
.eyebrow--left { justify-content: flex-start; }
.eyebrow--left::after { display: none; }
.eyebrow--left::before { max-width: 2rem; }
.section--green .eyebrow { color: var(--gold-light); }
.section--green .eyebrow::before,
.section--green .eyebrow::after { background: var(--gold-light); }

/* Type scale */
.h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); line-height: 1.08; }
.h2 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); line-height: 1.15; }
.h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); line-height: 1.3; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); line-height: 1.6; color: var(--green-ink); opacity: 0.85; }
.small-caps {
  font-variant: small-caps;
  letter-spacing: 0.04em;
}

.numeral {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.4rem);
  color: var(--gold);
  line-height: 1;
  font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.9rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: background-color 220ms var(--ease), color 220ms var(--ease), border-color 220ms var(--ease), transform 220ms var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--green);
  color: var(--white);
  border: 1px solid var(--green);
}
.btn-primary:hover { background: var(--green-ink); border-color: var(--green-ink); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(254, 254, 254, 0.5);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-light); }
.btn-arrow { transition: transform 220ms var(--ease); }
.btn:hover .btn-arrow { transform: translateX(4px); }

.text-link {
  position: relative;
  font-weight: 600;
  padding-bottom: 2px;
  background-image: linear-gradient(var(--gold), var(--gold));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 1px;
  transition: background-size 260ms var(--ease);
}
.text-link:hover { background-size: 100% 1px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background-color 320ms var(--ease), border-color 320ms var(--ease), box-shadow 320ms var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-solid {
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: rgba(47, 67, 41, 0.12);
}
.site-header.is-static { background: var(--paper); border-bottom-color: rgba(47, 67, 41, 0.12); }

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1.35rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo { display: flex; align-items: center; }
.logo-img { height: 40px; width: auto; display: block; }
.logo-img--footer { height: 34px; }

.primary-nav ul { display: flex; align-items: center; gap: 2.4rem; }
.primary-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--green-ink);
  position: relative;
  padding-bottom: 4px;
}
.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 260ms var(--ease);
}
.primary-nav a:hover::after,
.primary-nav a[aria-current="page"]::after { transform: scaleX(1); }
.primary-nav a[aria-current="page"] { color: var(--green); }
.primary-nav .nav-cta {
  padding: 0.6rem 1.3rem;
  border: 1px solid var(--green);
  border-radius: 2px;
}
.primary-nav .nav-cta::after { display: none; }
.primary-nav .nav-cta:hover { background: var(--green); color: var(--white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: none;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--green);
  margin: 0 auto;
  transition: transform 260ms var(--ease), opacity 260ms var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: 0;
  top: 0;
  background: var(--paper);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 380ms var(--ease), opacity 380ms var(--ease), visibility 0s linear 380ms;
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: transform 380ms var(--ease), opacity 380ms var(--ease), visibility 0s;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--green);
}
.mobile-nav a[aria-current="page"] { color: var(--gold); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(9rem, 18vw, 13rem);
  padding-bottom: clamp(5rem, 10vw, 8rem);
  background: linear-gradient(180deg, var(--green-06), transparent 60%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(47,67,41,0.05) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(180deg, black, transparent 85%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 780px; }
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  display: block;
  margin-bottom: 1.6rem;
  padding-left: 1px;
}
.hero-headline { margin-bottom: 1.6rem; }
.hero-sub { max-width: 560px; margin-bottom: 2.4rem; }
.hero-actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }

/* Page header (non-home pages) */
.page-header {
  padding-top: clamp(8rem, 16vw, 11rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}
.page-header .h1 { max-width: 760px; }
.page-header .lede { max-width: 620px; margin-top: 1.4rem; }

/* ---------- Grids / Pillars ---------- */
.pillar-list { display: flex; flex-direction: column; }
.pillar {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(2.2rem, 4vw, 3.2rem) 0;
  border-top: 1px solid rgba(47, 67, 41, 0.15);
  align-items: start;
}
.pillar:last-child { border-bottom: 1px solid rgba(47, 67, 41, 0.15); }
.pillar-num { font-family: var(--font-display); font-size: 1.5rem; color: var(--gold); }
.pillar-body { max-width: 640px; }
.pillar-title { margin-bottom: 0.7rem; }
.pillar-detail { margin-top: 1rem; }

.two-col {
  display: grid;
  grid-template-columns: minmax(200px, 340px) 1fr;
  gap: clamp(2rem, 6vw, 5rem);
}

.also-covers-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem 2rem;
  margin-top: 1.6rem;
  max-width: 560px;
}
.also-covers-list li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 0.96rem;
  opacity: 0.9;
}
.also-covers-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.65em;
  width: 6px; height: 1px;
  background: var(--gold);
}

/* Pull quote */
.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.4;
  color: var(--green);
  max-width: 780px;
  font-style: italic;
}

/* CTA band */
.cta-band { text-align: center; }
.cta-band-inner { max-width: 640px; margin: 0 auto; }
.cta-band .h2 { margin-bottom: 2rem; }

/* ---------- Diagrams ---------- */

/* Home / "The Problem": capability-gap bar diagram */
.gap-diagram { max-width: 560px; margin-top: clamp(2.5rem, 5vw, 4rem); }
.gap-diagram-frame { position: relative; width: 100%; padding-bottom: 3.75rem; }
.gap-diagram-frame svg { width: 100%; height: auto; display: block; overflow: visible; }
.gap-bar {
  transform-box: fill-box;
  transform-origin: bottom;
  transform: scaleY(0);
  transition: transform 900ms var(--ease);
}
.gap-bar-a { fill: var(--green); }
.gap-bar-b { fill: none; stroke: var(--green); stroke-width: 1.5; }
.gap-diagram.is-visible .gap-bar-a { transform: scaleY(1); }
.gap-diagram.is-visible .gap-bar-b { transform: scaleY(1); transition-delay: 180ms; }
.gap-target-line {
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-dasharray: 5 5;
  opacity: 0;
  transition: opacity 500ms var(--ease) 650ms;
}
.gap-diagram.is-visible .gap-target-line { opacity: 1; }
.gap-bracket {
  stroke: var(--gold);
  stroke-width: 1.2;
  fill: none;
  opacity: 0;
  transition: opacity 500ms var(--ease) 800ms;
}
.gap-diagram.is-visible .gap-bracket { opacity: 1; }
.gap-caption {
  position: absolute;
  top: calc(100% - 2.9rem);
  transform: translateX(-50%);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--green-ink);
  opacity: 0.8;
  text-align: center;
  width: 9rem;
}
.gap-label-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 15px;
  fill: var(--gold);
  opacity: 0;
  transition: opacity 500ms var(--ease) 900ms;
}
.gap-diagram.is-visible .gap-label-text { opacity: 1; }

/* How We Work: connected-process diagram */
.process-diagram { margin-bottom: clamp(3rem, 6vw, 5rem); }
.process-diagram svg { width: 100%; height: auto; display: block; overflow: visible; }
.process-path {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.5;
  stroke-dasharray: 566;
  stroke-dashoffset: 566;
  transition: stroke-dashoffset 1100ms var(--ease) 150ms;
}
.process-diagram.is-visible .process-path { stroke-dashoffset: 0; }
.process-node-circle {
  fill: var(--paper);
  stroke: var(--green);
  stroke-width: 1.5;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  transform: scale(0.6);
  transition: opacity 480ms var(--ease), transform 480ms var(--ease);
}
.process-diagram.is-visible .process-node-circle { opacity: 1; transform: scale(1); }
.process-diagram.is-visible .process-node-circle:nth-of-type(2) { transition-delay: 260ms; }
.process-diagram.is-visible .process-node-circle:nth-of-type(3) { transition-delay: 520ms; }
.process-num {
  font-family: var(--font-display);
  font-size: 26px;
  fill: var(--green);
  text-anchor: middle;
  dominant-baseline: middle;
}

/* ---------- Also Covers / secondary cards ---------- */
.secondary-block {
  border-left: 2px solid var(--gold);
  padding-left: clamp(1.5rem, 3vw, 2.5rem);
}

/* ---------- Contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
.form-field { margin-bottom: 1.4rem; }
.form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 0.5rem;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--white);
  border: 1px solid rgba(47, 67, 41, 0.25);
  border-radius: 2px;
  color: var(--green-ink);
  transition: border-color 220ms var(--ease);
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--gold);
  outline: none;
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.82rem; opacity: 0.65; margin-top: 1rem; }

.direct-contact { padding: 2rem clamp(1.5rem, 3vw, 2.5rem); background: var(--stone); }
.direct-contact .email-link {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  color: var(--green);
  display: inline-block;
  margin-top: 0.8rem;
}

.form-success {
  display: none;
  padding: 1.4rem 1.6rem;
  background: var(--green-06);
  border: 1px solid rgba(47, 67, 41, 0.2);
  border-radius: 2px;
  margin-bottom: 1.6rem;
}
.form-success.is-visible { display: block; }

/* ---------- About placeholder block ---------- */
.team-note {
  border: 1px solid rgba(47, 67, 41, 0.18);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  font-style: italic;
  opacity: 0.85;
  max-width: 620px;
}

/* ---------- Footer ---------- */
.site-footer { background: var(--green); color: var(--white); }
.footer-top {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0 clamp(2.5rem, 5vw, 3.5rem);
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 3rem;
}
.footer-brand p { margin-top: 1.2rem; max-width: 320px; opacity: 0.75; font-size: 0.92rem; }
.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 1.2rem;
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.8rem; }
.footer-col a { opacity: 0.85; font-size: 0.94rem; }
.footer-col a:hover { opacity: 1; color: var(--gold-light); }
.footer-bottom {
  padding: 1.6rem 0 2.2rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 640ms var(--ease), transform 640ms var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--green);
  color: var(--white);
  padding: 0.8rem 1.2rem;
  z-index: 1000;
}
.skip-link:focus { left: var(--gutter); top: 0.8rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .primary-nav { display: none; }
  .nav-toggle { display: flex; }
  .two-col { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .also-covers-list { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .pillar { grid-template-columns: 56px 1fr; }
}
@media (max-width: 600px) {
  .footer-top { grid-template-columns: 1fr; gap: 2.2rem; }
  .footer-bottom { flex-direction: column; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}