/* ==========================================================================
   RenewalWorks Consulting
   Flat, one-page, responsive — no media queries.
   Layout comes from intrinsic techniques: fluid clamp() scales, Grid
   auto-fit/minmax, subgrid, named areas, container queries and cqi units,
   Flexbox wrapping (cluster, sidebar, switcher), multi-column, sticky.
   ========================================================================== */

:root {
  /* Palette.
     Plum carries white text at 9.6:1 and reads as text on white at the same ratio.
     --accent-deep is the hover shade.
     --grey-600 is the lightest grey that still carries white body text at 4.5:1 (4.54:1). */
  --accent: #6e2a62;
  --accent-deep: #4e1d45;
  --on-accent: #ffffff;
  --black: #0d0d0d;
  --white: #ffffff;
  --grey-800: #444444;
  --grey-600: #767676;
  --grey-500: #6e6e6e;
  --grey-300: #bdbdbd;
  --grey-100: #ececec;

  /* Section tokens: sections swap these instead of restyling children */
  --ink: var(--black);
  --paper: var(--white);

  /* Type */
  --font-display: "Anton", Impact, "Arial Narrow Bold", sans-serif;
  --font-body: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Fluid type scale: min at ~320px, max at ~1440px */
  --step--1: clamp(0.8rem, 0.77rem + 0.13vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.22vw, 1.15rem);
  --step-1: clamp(1.15rem, 1.06rem + 0.45vw, 1.45rem);
  --step-2: clamp(1.4rem, 1.2rem + 0.95vw, 2.05rem);
  --step-3: clamp(1.85rem, 1.45rem + 2vw, 3.2rem);
  --step-4: clamp(2.6rem, 1.8rem + 4vw, 5.5rem);

  /* Fluid space scale */
  --space-xs: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-s: clamp(0.75rem, 0.65rem + 0.5vw, 1.25rem);
  --space-m: clamp(1.25rem, 1.05rem + 1vw, 2rem);
  --space-l: clamp(2rem, 1.55rem + 2.25vw, 3.75rem);
  --space-xl: clamp(3.5rem, 2.6rem + 4.5vw, 7.5rem);

  --gutter: clamp(1rem, 0.6rem + 2vw, 3rem);
  --wrap: 84rem;
  --measure: 62ch;
  --rule: 0.5rem;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html {
  scroll-padding-block-start: 6rem; /* keeps anchored headings clear of the sticky header */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400; /* Anton ships a single heavy weight */
  line-height: 1.05;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  text-wrap: balance;
}

p,
ul,
dl,
dd,
figure,
blockquote {
  margin: 0;
}

p {
  text-wrap: pretty;
}

a {
  color: inherit;
}

img {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

:focus-visible {
  outline: 3px solid var(--focus, var(--black));
  outline-offset: 3px;
}

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

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: -10rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent-deep);
  color: var(--white);
  font-weight: 700;
}

.skip-link:focus {
  inset-block-start: 1rem;
}

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */

/* Centred wrapper: min() gives a fluid width with a hard maximum, no breakpoint */
.wrap {
  inline-size: min(100% - 2 * var(--gutter), var(--wrap));
  margin-inline: auto;
}

/* Vertical rhythm between siblings */
.flow > * + * {
  margin-block-start: var(--flow-space, 1.25em);
}

/* Cluster: items wrap onto new lines when they run out of room */
.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-s);
}

/* Sidebar: side-by-side until the main column would drop below 55%, then stacks */
.with-sidebar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-l);
}

.with-sidebar > :first-child {
  flex-basis: 18rem;
  flex-grow: 1;
}

.with-sidebar > :last-child {
  flex-basis: 0;
  flex-grow: 999;
  min-inline-size: 55%;
}

/* At-most-two grid: auto-fit where each column is at least --min wide AND at least half the row,
   so four items fall into 1 column on narrow screens and a 2 x 2 block everywhere else,
   never 3 + 1 or four columns too narrow to read */
.grid-max-2 {
  --gap: var(--space-m);
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(
    auto-fit,
    minmax(min(100%, max(var(--min, 21rem), (100% - var(--gap)) / 2 - 1px)), 1fr)
  );
}

/* Switcher: every item flips from a row to a column at once, at a 38rem threshold */
.switcher {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  padding: 0;
  list-style: none;
}

.switcher > * {
  flex-grow: 1;
  flex-basis: calc((38rem - 100%) * 999);
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section {
  padding-block: var(--space-xl);
}

.section--grey {
  background: var(--grey-100);
}

.section--accent {
  --ink: var(--on-accent);
  --paper: var(--accent);
  --focus: var(--on-accent);
  background: var(--paper);
  color: var(--ink);
}

.section-head {
  display: grid;
  gap: var(--space-s);
  max-inline-size: 50rem;
  margin-block-end: var(--space-l);
}

.section-head h2 {
  font-size: var(--step-4);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-block-size: 3rem;
  padding: 0.85rem 1.4rem;
  border: 2px solid var(--btn-border, transparent);
  background: var(--btn-bg, transparent);
  color: var(--btn-fg, currentColor);
  max-inline-size: 100%; /* on the very narrowest phones a long label wraps rather than overflowing */
  font: 800 1.1875rem / 1.15 var(--font-body);
  letter-spacing: 0.01em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.btn--accent {
  --btn-bg: var(--accent);
  --btn-fg: var(--on-accent);
}

.btn--outline {
  --btn-border: var(--ink);
  --btn-fg: var(--ink);
}

.btn--accent:hover,
.btn--outline:hover {
  --btn-bg: var(--accent-deep);
  --btn-fg: var(--white);
  --btn-border: var(--accent-deep);
}

/* On an accent background an accent button would disappear, so it inverts */
.section--accent .btn--accent {
  --btn-bg: var(--white);
  --btn-fg: var(--accent);
}

.section--accent .btn--accent:hover {
  --btn-bg: var(--accent-deep);
  --btn-fg: var(--white);
  --btn-border: var(--white);
}

/* --------------------------------------------------------------------------
   Logo (typeset, so it stays sharp at any size)
   -------------------------------------------------------------------------- */

.logo {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 0.5em 0.55em 0.55em;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--font-display);
  line-height: 0.9;
  text-decoration: none;
  text-transform: uppercase;
}

.logo-line--1 {
  font-size: 1.28em;
  letter-spacing: 0.01em;
}

.logo-line--2 {
  font-size: 1.72em;
  letter-spacing: 0.02em;
}

.logo-sub {
  margin-block-start: 0.45em;
  margin-inline-end: -0.62em; /* cancels trailing letter-spacing so it centres */
  font-family: var(--font-body);
  font-size: 0.4em;
  font-weight: 800;
  letter-spacing: 0.62em;
}

/* --------------------------------------------------------------------------
   Header — named grid areas, rearranged by a container query
   -------------------------------------------------------------------------- */

.site-header {
  container: header / inline-size;
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  background: var(--white);
  border-block-end: 1px solid var(--grey-100);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "logo cta"
    "nav  nav";
  align-items: center;
  gap: 0.4rem 1.5rem;
  padding-block: 0.6rem 0.2rem;
}

.site-header .logo {
  grid-area: logo;
  font-size: 0.82rem;
}

.header-cta {
  grid-area: cta;
  justify-self: end;
  min-block-size: 2.5rem;
  padding: 0.6rem 1rem;
}

.site-nav {
  grid-area: nav;
}

.site-nav ul {
  display: flex;
  gap: clamp(0.875rem, 2.4vw, 2.25rem);
  padding: 0;
  list-style: none;
  overflow-x: auto; /* one scrollable row on narrow screens */
  scrollbar-width: none;
}

.site-nav li {
  flex: none;
}

.site-nav a,
.footer-nav a {
  display: inline-block;
  padding-block: 0.55rem;
  border-block-end: 3px solid transparent;
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

/* Slightly smaller on phones so all four links fit on one row */
.site-nav a {
  font-size: clamp(0.75rem, 0.6rem + 0.6vw, 0.9rem);
}

.site-nav a:hover,
.footer-nav a:hover {
  border-color: var(--accent);
}

@container header (min-width: 46rem) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
    grid-template-areas: "logo nav cta";
    padding-block: 0.75rem;
  }

  .site-nav ul {
    justify-content: flex-end;
  }
}

/* --------------------------------------------------------------------------
   Hero — named areas + container query, headline sized in cqi units
   -------------------------------------------------------------------------- */

.hero {
  container: hero / inline-size;
  padding-block: clamp(1.5rem, 4vh + 0.5rem, 4rem) var(--space-xl);
  padding-block: clamp(1.5rem, 4svh + 0.5rem, 4rem) var(--space-xl);
}

.hero-grid {
  display: grid;
  grid-template-areas:
    "lines"
    "lead"
    "actions"
    "belief";
  gap: var(--space-m) var(--space-l);
}

/* The smallest of three sizes wins:
   - a hard cap of 7rem;
   - width: the longest line (~10.3em in Anton, "You've got a lot going on.") always fits on one row;
   - height: the four lines (~4.9em including gaps) plus everything else on the
     first screen fit in the viewport, so it sits above the fold on desktop.
     A 2.75rem floor stops it shrinking too far on very short windows.
     svh excludes mobile browser toolbars; vh is the fallback.
   The wide layout below re-states this for the narrower headline column. */
.hero-lines {
  grid-area: lines;
  display: grid;
  row-gap: 0.14em;
  font-size: min(7rem, min(100cqi - 2 * var(--gutter), var(--wrap)) / 10.6, max(2.75rem, (100vh - 26rem) / 4.9));
  font-size: min(7rem, min(100cqi - 2 * var(--gutter), var(--wrap)) / 10.6, max(2.75rem, (100svh - 26rem) / 4.9));
  line-height: 1;
}

.hero-lines .accent {
  margin-block-start: 0.4em; /* extra breathing room before the answer line */
  color: var(--accent);
}

.hero-lead {
  grid-area: lead;
  max-inline-size: var(--measure);
  font-size: var(--step-0);
  line-height: 1.6;
}

.hero-actions {
  grid-area: actions;
}

/* White card with a solid (unblurred) offset shadow in the accent colour.
   The right margin keeps the shadow inside the page gutter. */
.hero-belief {
  --offset: 0.75rem;
  grid-area: belief;
  margin-inline-end: var(--offset);
  padding: var(--space-m);
  border: 3px solid var(--accent);
  background: var(--white);
  color: var(--black);
  box-shadow: var(--offset) var(--offset) 0 var(--accent);
  font-size: var(--step-0);
  font-weight: 500;
  line-height: 1.5;
}

.belief-kicker {
  display: block;
  margin-block-end: 0.35em;
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 400;
  line-height: 1.05;
  text-transform: uppercase;
}

/* Wide: the belief block sits beside the headline, its base level with the last
   headline line; lead and buttons run underneath the headline */
@container hero (min-width: 56rem) {
  .hero-grid {
    --belief-w: clamp(18rem, 30cqi, 27rem);
    grid-template-columns: minmax(0, 1fr) var(--belief-w);
    grid-template-areas:
      "lines   belief"
      "lead    ."
      "actions .";
    align-items: start;
  }

  /* Width term now uses the headline column (wrapper minus gap minus belief block);
     the height term only has to leave room for header, lead and buttons (~24rem) */
  .hero-lines {
    font-size: min(
      7rem,
      (min(100cqi - 2 * var(--gutter), var(--wrap)) - var(--space-l) - var(--belief-w)) / 10.6,
      max(2.75rem, (100vh - 24rem) / 4.9)
    );
    font-size: min(
      7rem,
      (min(100cqi - 2 * var(--gutter), var(--wrap)) - var(--space-l) - var(--belief-w)) / 10.6,
      max(2.75rem, (100svh - 24rem) / 4.9)
    );
  }

  .hero-belief {
    align-self: end;
  }

  .hero-lead {
    margin-block-start: var(--space-s);
  }
}

/* --------------------------------------------------------------------------
   Cards — white panel with an accent top stripe, shared by Focus Areas and Services
   -------------------------------------------------------------------------- */

.card {
  padding: var(--space-m);
  border-block-start: var(--rule) solid var(--accent);
  background: var(--white);
  color: var(--black);
}

/* On an accent background the stripe would vanish, so cards go plain, like the quote cards */
.section--accent .card {
  border-block-start: 0;
}

.card h3 {
  font-size: var(--step-3);
}

/* --------------------------------------------------------------------------
   Focus Areas — auto-fit grid, rows aligned across cards with subgrid
   -------------------------------------------------------------------------- */

.focus-card {
  display: grid;
  grid-row: span 3;
  grid-template-rows: subgrid; /* heading, problem and detail line up across the row */
  row-gap: var(--space-s);
}

.focus-problem {
  font-size: var(--step-1);
  font-weight: 800;
  line-height: 1.3;
}

.focus-card p:last-child {
  color: var(--grey-800);
}

/* --------------------------------------------------------------------------
   Services — auto-fit columns; each column is a query container
   -------------------------------------------------------------------------- */

.service-col {
  container: service / inline-size;
}

.service-col h3 {
  margin-block-end: var(--space-xs);
}

.service {
  display: grid;
  gap: 0.35rem;
  padding-block: var(--space-s);
  border-block-end: 1px solid var(--grey-300);
}

.service:last-child {
  padding-block-end: 0;
  border-block-end: 0;
}

.service dt {
  font-weight: 800;
  line-height: 1.3;
}

.service dd {
  color: var(--grey-800);
}

/* When a column gets wide (a single column on a tablet), name and detail sit side by side */
@container service (min-width: 34rem) {
  .service {
    grid-template-columns: 13rem 1fr;
    gap: var(--space-m);
  }
}

/* --------------------------------------------------------------------------
   Approach — sticky heading beside the text once there is room
   -------------------------------------------------------------------------- */

.approach {
  container: approach / inline-size;
}

.approach-grid {
  display: grid;
  gap: 0 var(--space-l);
}

@container approach (min-width: 52rem) {
  .approach-grid {
    grid-template-columns: minmax(14rem, 1fr) minmax(0, 2.2fr);
    align-items: start;
  }

  .approach-grid > .section-head {
    position: sticky;
    inset-block-start: 7rem;
  }
}

.approach-body {
  max-inline-size: 48rem;
}

.lead {
  font-size: var(--step-1);
  font-weight: 500;
  line-height: 1.5;
}

.pull {
  --flow-space: var(--space-l);
  padding-block: 0.3em;
  padding-inline-start: var(--space-m);
  border-inline-start: var(--rule) solid var(--accent);
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.12;
  text-transform: uppercase;
  text-wrap: balance;
}

.values {
  --flow-space: var(--space-l);
}

.values h3 {
  margin-block-end: var(--space-s);
  font-size: var(--step-2);
}

.value {
  padding: var(--space-m);
  border-block-start: var(--rule) solid var(--accent);
  background: var(--grey-600);
  color: var(--white);
}

.value p {
  font-size: var(--step-1);
  font-weight: 700;
  line-height: 1.3;
}

.call-box {
  --flow-space: var(--space-l);
  display: grid;
  justify-items: start;
  gap: var(--space-m);
  padding: var(--space-m);
  background: var(--grey-100);
}

/* --------------------------------------------------------------------------
   Clients — CSS multi-column, as many columns as fit
   -------------------------------------------------------------------------- */

.client-list {
  columns: 17rem;
  column-gap: var(--space-l);
  column-rule: 1px solid var(--grey-300);
  padding: 0;
  list-style: none;
}

.client-list li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding-block: 0.6rem;
  border-block-end: 1px solid var(--grey-300);
  break-inside: avoid;
  font-weight: 600;
  line-height: 1.35;
}

.client-list li::before {
  content: "";
  flex: none;
  inline-size: 0.5rem;
  block-size: 0.5rem;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   Testimonials — featured quote spans the grid and sets its text in columns
   -------------------------------------------------------------------------- */

.quote {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  padding: var(--space-m);
  background: var(--white);
  color: var(--black);
}

.quote-stack {
  display: grid;
  gap: var(--space-m);
}

/* Masonry-style: quotes of very different lengths flow into at most two balanced
   columns (each at least 22rem), reading top-to-bottom, so no card is padded out
   to match a longer neighbour */
.quote-columns {
  columns: 22rem 2;
  column-gap: var(--space-m);
}

.quote-columns > .quote {
  break-inside: avoid;
  margin-block-end: var(--space-m);
}

.quote-mark {
  block-size: 0.5em;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 1;
}

.quote blockquote {
  font-size: var(--step-0);
  font-weight: 500;
}

.quote--featured blockquote {
  columns: 24rem 2; /* at most two columns, each at least 24rem wide */
  column-gap: var(--space-l);
  font-size: var(--step-1);
  line-height: 1.5;
}

.quote figcaption {
  margin-block-start: auto;
  padding-block-start: 0.75rem;
  border-block-start: 2px solid var(--black);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   About — each bio is a query container: photo beside text when wide
   -------------------------------------------------------------------------- */

.bio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 26rem), 1fr));
  gap: var(--space-l);
}

.bio {
  container: bio / inline-size;
}

.bio-inner {
  display: grid;
  gap: var(--space-m);
}

@container bio (min-width: 32rem) {
  .bio-inner {
    grid-template-columns: 11rem 1fr;
    align-items: start;
  }
}

.bio-photo {
  display: grid;
  place-items: center;
  inline-size: min(100%, 14rem);
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--grey-600);
  box-shadow: 0.6rem 0.6rem 0 var(--accent); /* solid offset block, no blur */
}

.bio-photo img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  filter: grayscale(1);
}

.bio-text {
  display: grid;
  gap: var(--space-s);
}

.bio-text h3 {
  font-size: var(--step-3);
}

.bio-text p {
  max-inline-size: var(--measure);
}

.bio-link a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.25rem; /* comfortable tap target */
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 2px;
}

.bio-link a:hover,
.bio-link a:focus-visible {
  text-decoration-line: underline;
}

.bio-link-icon {
  flex: none;
  inline-size: 1.25em;
  block-size: 1.25em;
  fill: currentColor;
}

/* Hidden visually but still read by screen readers */
.visually-hidden {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Contact form
   -------------------------------------------------------------------------- */

/* Wraps the form and its thank-you panel so the pair stays the sidebar layout's main column */
.contact-body {
  max-inline-size: 50rem;
}

/* Shown by form.js in place of the form once Formspree accepts the message */
.contact-thanks {
  padding: var(--space-m);
  background: var(--white);
  color: var(--black);
  font-size: var(--step-1);
}

.contact-thanks-title {
  margin-block-end: 0.25em;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.05;
  text-transform: uppercase;
}

.btn:disabled {
  cursor: progress;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-m);
}

.field {
  display: grid;
  gap: 0.5rem;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  inline-size: 100%;
  padding: 0.85rem 1rem;
  border: 2px solid var(--white);
  border-radius: 0;
  background: var(--white);
  color: var(--black);
  font: inherit;
}

.field textarea {
  min-block-size: 10rem;
  resize: vertical;
}

.field-trap {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  padding-block: var(--space-l);
  border-block-start: var(--rule) solid var(--accent);
  background: var(--white);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m) var(--space-l);
}

.logo--footer {
  font-size: 1.1rem;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
  padding: 0;
  list-style: none;
}

.footer-meta {
  flex-basis: 100%;
  padding-block-start: var(--space-s);
  border-block-start: 1px solid var(--grey-100);
  color: var(--grey-500);
  font-size: var(--step--1);
}