/* ==========================================================================
   CHEVIER — MAIN STYLESHEET
   Digital Excellence for Construction
   --------------------------------------------------------------------------
   CONTENTS
   1.  CSS Variables (colors, spacing, typography)
   2.  Reset & Base
   3.  Typography
   4.  Layout Utilities (container, section, grid)
   5.  Buttons
   6.  Header & Navigation
   7.  Hero
   8.  Credibility Strip
   9.  Cards (services, benefits, credentials)
   10. Problem Section
   11. Process (How It Works)
   12. Portfolio / Work Cards & Device Mockups
   13. Founder Section
   14. CTA Band
   15. Page Headers (interior pages)
   16. Contact Page & Form
   17. Legal Pages
   18. Footer
   19. Back to Top
   20. Accessibility Helpers
   21. Responsive Breakpoints
   ========================================================================== */

/* ==========================================================================
   1. CSS VARIABLES
   ========================================================================== */
:root {
  /* Brand colors */
  --color-black: #0B0B0B;
  --color-charcoal: #171717;
  --color-charcoal-light: #222220;
  --color-warm-white: #F5F3EE;
  --color-gray: #A5A39D;
  /* Lifted from #6E6C66 so small print clears WCAG AA (4.5:1) on black.
     Was 3.7:1; now 5.2:1. Used for footer small print and quiet notes. */
  --color-gray-dark: #85837C;
  --color-bronze: #A17C4A;
  --color-bronze-light: #BE9A66;
  --color-line: rgba(245, 243, 238, 0.10);

  /* Typography */
  --font-heading: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-pad: 1.25rem;
  --radius: 4px;

  /* Logo size — adjust here to resize the logo site-wide
     (stacked logo: mark above wordmark, so it runs taller) */
  --logo-height-nav: 58px;
  --logo-height-footer: 88px;
}

/* ==========================================================================
   2. RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-warm-white);
  background-color: var(--color-black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

ul[class], ol[class] { list-style: none; }

/* ==========================================================================
   3. TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.15;
  text-transform: uppercase;
}

/* Display tier — heavier weight, tighter tracking. Carries the page. */
h1, h2 { font-weight: 600; letter-spacing: 0.005em; }

/* Sub tier — lighter weight and open tracking so headings inside cards
   support the display tier instead of competing with it. */
h3, h4 { font-weight: 500; letter-spacing: 0.045em; }

h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.3rem); }
h4 { font-size: 0.98rem; letter-spacing: 0.07em; }

p { color: var(--color-gray); max-width: 62ch; }

.lead { font-size: 1.125rem; line-height: 1.6; color: var(--color-warm-white); opacity: 0.92; }

/* Small bronze label above headings */
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin-bottom: var(--space-sm);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--color-bronze);
  vertical-align: middle;
  margin-right: 0.75rem;
}

.text-bronze { color: var(--color-bronze); }
.text-center { text-align: center; }

/* ==========================================================================
   4. LAYOUT UTILITIES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section { padding: var(--space-2xl) 0; }
.section--tight { padding: var(--space-xl) 0; }
.section--charcoal { background-color: var(--color-charcoal); }

.section-head { max-width: 720px; margin-bottom: var(--space-lg); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow::before { display: none; }
.section-head p { margin-top: var(--space-sm); }

.grid { display: grid; gap: var(--space-md); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.divider { border: none; border-top: 1px solid var(--color-line); }

/* ==========================================================================
   5. BUTTONS
   ========================================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 1.9rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--primary {
  background-color: var(--color-bronze);
  color: var(--color-black);
}
.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-bronze-light);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-warm-white);
  border-color: rgba(245, 243, 238, 0.35);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--color-bronze);
  color: var(--color-bronze);
}

.btn--small { padding: 0.6rem 1.25rem; font-size: 0.8rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.btn-row--center { justify-content: center; }

/* ==========================================================================
   6. HEADER & NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 11, 11, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.75rem 0;
}

.nav__logo img {
  height: var(--logo-height-nav);
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav__links a:not(.btn) {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gray);
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav__links a:not(.btn):hover,
.nav__links a:not(.btn):focus-visible,
.nav__links a[aria-current="page"] {
  color: var(--color-warm-white);
  border-bottom-color: var(--color-bronze);
}

/* Hamburger (hidden on desktop) */
.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0.55rem 0.7rem;
  cursor: pointer;
}
.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-warm-white);
  margin: 4px 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ==========================================================================
   7. HERO
   ========================================================================== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: min(82vh, 780px);
  padding: clamp(4rem, 9vw, 7rem) 0;
  background-color: var(--color-black);
  /* Hero image (helmet + skyline). Replace the file to change it — see README.
     The left side of the gradient stays near-solid so the HTML headline reads
     cleanly over the image. */
  background-image:
    linear-gradient(93deg,
      #0B0B0B 0%,
      rgba(11, 11, 11, 0.97) 50%,
      rgba(11, 11, 11, 0.72) 60%,
      rgba(11, 11, 11, 0.22) 72%,
      rgba(11, 11, 11, 0.05) 85%,
      rgba(11, 11, 11, 0.02) 100%),
    url("../assets/images/chevier-homepage-hero.webp");
  background-size: cover;
  background-position: center 40%;
}

.hero > .container { width: 100%; }

/* On smaller screens the image sits behind the text, so use the text-free
   crop, darken it evenly, and hold it still to save battery */
@media (max-width: 860px) {
  .hero { min-height: 0; }
  body.flow .hero::before {
    background-image: linear-gradient(rgba(11, 11, 11, 0.82), rgba(11, 11, 11, 0.82));
  }
  body.flow .hero__media {
    background-image: url("../assets/images/chevier-homepage-hero-mobile.webp");
    animation: none;
    inset: 0;
  }
  body.flow .hero__video { display: none; }
}

.hero__content { max-width: 680px; }

.hero__content h1 { margin-bottom: var(--space-md); }

.hero__content .lead { margin-bottom: var(--space-lg); }

.hero__contact {
  margin-top: var(--space-lg);
  font-size: 0.95rem;
  color: var(--color-gray);
}
.hero__contact a { color: var(--color-warm-white); }
.hero__contact a:hover { color: var(--color-bronze); }

/* ==========================================================================
   8. CREDIBILITY STRIP
   ========================================================================== */
.cred-strip {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background-color: var(--color-black);
}

.cred-strip__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  padding: var(--space-md) 0;
}

.cred-strip__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.cred-strip__item svg { flex-shrink: 0; color: var(--color-bronze); }

/* ==========================================================================
   9. CARDS
   ========================================================================== */
.card {
  background-color: var(--color-charcoal);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: var(--space-lg);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover { border-color: rgba(161, 124, 74, 0.45); }

.card__icon {
  color: var(--color-bronze);
  margin-bottom: var(--space-sm);
}

.card h3 { margin-bottom: 0.6rem; }
.card p { font-size: 0.95rem; }

/* Compact benefit card (Why Chevier) */
.card--benefit { padding: var(--space-md); }
.card--benefit h3 { font-size: 0.98rem; letter-spacing: 0.07em; margin-bottom: 0.35rem; }
.card--benefit p { font-size: 0.9rem; }

/* Credential list items (Founder/About) */
.cred-list { display: grid; gap: 0.75rem; }
.cred-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--color-gray);
  font-size: 0.95rem;
}
.cred-list svg { flex-shrink: 0; margin-top: 0.2rem; color: var(--color-bronze); }

/* ==========================================================================
   10. PROBLEM SECTION
   ========================================================================== */
.problem-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-sm); }

.problem-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--color-charcoal);
  border: 1px solid var(--color-line);
  border-left: 2px solid var(--color-bronze);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  font-size: 0.95rem;
  color: var(--color-gray);
}

/* ==========================================================================
   11. PROCESS (HOW IT WORKS)
   ========================================================================== */
.process { counter-reset: step; }

.process__step { position: relative; padding-top: var(--space-sm); }

.process__num {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 600;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-bronze);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.process__step h3 { margin-bottom: 0.5rem; }
.process__step p { font-size: 0.95rem; }

/* ==========================================================================
   12. PORTFOLIO / WORK CARDS & DEVICE MOCKUPS
   ========================================================================== */
.work-card {
  background-color: var(--color-charcoal);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease;
}
.work-card:hover { border-color: rgba(161, 124, 74, 0.45); }

.work-card__media {
  position: relative;
  background-color: var(--color-black);
  padding: var(--space-md) var(--space-md) 0;
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  min-height: 230px;
}

/* The full preview area is a link to the concept page */
a.work-card__media { cursor: pointer; transition: background-color 0.2s ease; }
a.work-card__media:hover .mockup-desktop,
a.work-card__media:hover .mockup-phone { border-color: rgba(161, 124, 74, 0.6); }
a.work-card__media:focus-visible { outline: 2px solid var(--color-bronze); outline-offset: -3px; }

.work-card__body { padding: var(--space-md) var(--space-lg) var(--space-lg); }

.work-card__label {
  display: inline-block;
  font-size: 0.7rem;
  font-family: var(--font-heading);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-bronze);
  border: 1px solid rgba(161, 124, 74, 0.4);
  border-radius: var(--radius);
  padding: 0.25rem 0.6rem;
  margin-bottom: 0.75rem;
}

.work-card__body h3 { margin-bottom: 0.5rem; }
.work-card__body p { font-size: 0.92rem; margin-bottom: var(--space-md); }

/* --- Device mockup frames (desktop browser + phone) --- */
.mockup-desktop {
  flex: 1 1 auto;
  border: 1px solid var(--color-line);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  overflow: hidden;
  background: var(--color-charcoal-light);
}

.mockup-desktop__bar {
  display: flex;
  gap: 5px;
  padding: 7px 10px;
  background: #1d1d1b;
  border-bottom: 1px solid var(--color-line);
}
.mockup-desktop__bar span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #3a3a37;
}

.mockup-phone {
  flex: 0 0 74px;
  width: 74px;
  border: 1px solid var(--color-line);
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  overflow: hidden;
  background: var(--color-charcoal-light);
  padding-top: 8px;
}
.mockup-phone::before {
  content: "";
  display: block;
  width: 26px; height: 4px;
  margin: 0 auto 6px;
  border-radius: 2px;
  background: #3a3a37;
}

/* Screenshot area inside mockups.
   Replace the placeholder <div class="mockup-screen"> with an <img> of the
   real concept screenshot — see README. */
.mockup-screen {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.mockup-phone .mockup-screen { aspect-ratio: 9 / 16; }

.mockup-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* CSS placeholder preview shown until real screenshots are added */
.mockup-ph { position: absolute; inset: 0; padding: 10% 8%; }
.mockup-ph__bar { height: 8%; border-radius: 2px; margin-bottom: 9%; background: var(--ph-accent, var(--color-bronze)); opacity: 0.85; width: 55%; }
.mockup-ph__line { height: 5%; border-radius: 2px; margin-bottom: 6%; background: rgba(245,243,238,0.22); }
.mockup-ph__line--short { width: 65%; }
.mockup-ph__blocks { display: flex; gap: 6%; margin-top: 10%; height: 26%; }
.mockup-ph__blocks span { flex: 1; border-radius: 2px; background: rgba(245,243,238,0.10); border: 1px solid rgba(245,243,238,0.12); }

/* ==========================================================================
   13. FOUNDER SECTION
   ========================================================================== */
.founder { display: grid; grid-template-columns: 340px 1fr; gap: var(--space-xl); align-items: center; }

.founder__photo {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.founder__photo img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }

.founder__role {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-bronze);
  margin: 0.35rem 0 var(--space-md);
}

.founder__body h2 { margin-bottom: 0; }
.founder__body > p { margin-bottom: var(--space-md); }

/* ==========================================================================
   14. CTA BAND
   ========================================================================== */
.cta-band {
  background-color: var(--color-charcoal);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  text-align: center;
}

.cta-band h2 { max-width: 700px; margin: 0 auto var(--space-sm); }
.cta-band p { margin: 0 auto var(--space-lg); }

.cta-band__contact {
  margin-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
  font-size: 0.95rem;
}
.cta-band__contact a { color: var(--color-gray); transition: color 0.2s ease; }
.cta-band__contact a:hover { color: var(--color-bronze); }

/* ==========================================================================
   15. PAGE HEADERS (interior pages)
   ========================================================================== */
.page-header {
  padding: var(--space-xl) 0;
  background-color: var(--color-charcoal);
  border-bottom: 1px solid var(--color-line);
}
.page-header h1 { margin-bottom: var(--space-xs); }
.page-header p { max-width: 640px; }

/* ==========================================================================
   16. CONTACT PAGE & FORM
   ========================================================================== */
.contact-layout { display: grid; grid-template-columns: 1fr 1.4fr; gap: var(--space-xl); align-items: start; }

.contact-info { display: grid; gap: var(--space-md); }

/* Column heading for the details aside — sized down from the display scale so
   it labels the column without competing with the page h1. */
.contact-info > h2 {
  font-size: 1.15rem;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-line);
}

.contact-info__item h3 {
  font-size: 0.98rem; letter-spacing: 0.07em;
  color: var(--color-bronze); margin-bottom: 0.25rem;
}
.contact-info__item a { color: var(--color-warm-white); font-size: 1.05rem; }
.contact-info__item a:hover { color: var(--color-bronze); }
.contact-info__item p { font-size: 0.95rem; }

.form { display: grid; gap: var(--space-md); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }

.form__group { display: grid; gap: 0.4rem; }

.form label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-warm-white);
}

.form .req { color: var(--color-bronze); }

.form input,
.form select,
.form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-warm-white);
  background-color: var(--color-charcoal);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  transition: border-color 0.2s ease;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--color-bronze);
}

.form input.error,
.form select.error,
.form textarea.error { border-color: #b0533f; }

.form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--color-gray) 50%), linear-gradient(135deg, var(--color-gray) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }

.form textarea { min-height: 140px; resize: vertical; }

.form__note { font-size: 0.85rem; color: var(--color-gray-dark); }

.form__status {
  display: none;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.form__status--success { display: block; background: rgba(90, 130, 90, 0.15); border: 1px solid rgba(120, 170, 120, 0.4); color: #b9d4b9; }
.form__status--error { display: block; background: rgba(176, 83, 63, 0.12); border: 1px solid rgba(176, 83, 63, 0.45); color: #dfa294; }

.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* Honeypot — hidden from humans, visible to bots */
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

/* ==========================================================================
   17. LEGAL PAGES
   ========================================================================== */
.legal { max-width: 760px; }
.legal h2 { font-size: 1.3rem; margin: var(--space-lg) 0 var(--space-xs); }
.legal p, .legal li { color: var(--color-gray); font-size: 0.97rem; margin-bottom: 0.75rem; }
.legal ul { padding-left: 1.25rem; margin-bottom: var(--space-sm); }
.legal .notice {
  background: var(--color-charcoal);
  border-left: 2px solid var(--color-bronze);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-lg);
}

/* ==========================================================================
   18. FOOTER
   ========================================================================== */
.site-footer {
  background-color: var(--color-black);
  border-top: 1px solid var(--color-line);
  padding: var(--space-xl) 0 var(--space-lg);
}

.site-footer__grid {
  display: grid;
  /* Three columns since the placeholder "Follow" block was removed */
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.site-footer__brand img { height: var(--logo-height-footer); width: auto; margin-bottom: var(--space-sm); }
.site-footer__brand p { font-size: 0.9rem; }

/* Footer column headings are h2 — the footer is its own landmark, so this
   keeps heading order valid without changing how they look. */
.site-footer h2 {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-bronze);
  margin-bottom: var(--space-sm);
}

.site-footer ul { display: grid; gap: 0.5rem; list-style: none; padding-left: 0; }
.site-footer ul a { color: var(--color-gray); font-size: 0.92rem; transition: color 0.2s ease; }
.site-footer ul a:hover { color: var(--color-warm-white); }

.site-footer__bottom {
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-gray-dark);
}

/* ==========================================================================
   19. BACK TO TOP
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-charcoal);
  color: var(--color-bronze);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { border-color: var(--color-bronze); }

/* ==========================================================================
   20. ACCESSIBILITY HELPERS
   ========================================================================== */
.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  z-index: 200;
  background: var(--color-bronze);
  color: var(--color-black);
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0.5rem; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ==========================================================================
   21. RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* ==========================================================================
   CONTINUOUS-PAGE TREATMENT (scoped to body.flow)
   Applied to every Chevier page — Home, Services, Work, About, Contact,
   Privacy and Terms — so the whole site reads as one seamless dark canvas:
   no alternating section tones, softened transitions, subtle blueprint
   texture, refined cards and interactions. The three concept pages are
   deliberately excluded; each carries its own standalone brand styling.
   ========================================================================== */

/* --- Continuous background: flatten section tones --- */
body.flow { background-color: var(--color-black); }
body.flow .section--charcoal { background-color: transparent; }
body.flow .section { padding: 4.75rem 0; }

/* --- Hero: darker top edge for nav legibility + fade into next section ---
   The photo itself now lives on .hero__media (which drifts); this element
   keeps only the gradient scrim stack layered above it. --- */
/* The photo lives on .hero__media (z-index -3, drifting); the scrim stack is
   painted by ::before at z-index -2 so it sits ABOVE the image but below the
   copy. A negative-z child would otherwise cover the section's own background. */
body.flow .hero { background-image: none; }

body.flow .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    /* top scrim so the sticky nav always has contrast */
    linear-gradient(to bottom, rgba(11, 11, 11, 0.80) 0%, rgba(11, 11, 11, 0.12) 20%),
    /* bottom fade into the next section */
    linear-gradient(to bottom, rgba(11, 11, 11, 0) 60%, rgba(11, 11, 11, 0.72) 88%, #0B0B0B 100%),
    /* left column kept near-solid so the headline always reads */
    linear-gradient(95deg,
      #0B0B0B 0%,
      rgba(11, 11, 11, 0.95) 34%,
      rgba(11, 11, 11, 0.85) 48%,
      rgba(11, 11, 11, 0.58) 62%,
      rgba(11, 11, 11, 0.32) 78%,
      rgba(11, 11, 11, 0.22) 100%),
    /* overall grade to hold the image back from the type */
    linear-gradient(rgba(11, 11, 11, 0.32), rgba(11, 11, 11, 0.32));
}

/* --- Interior page headers: no hard band, soft fade into the page --- */
body.flow .page-header {
  background: linear-gradient(to bottom, rgba(23, 23, 23, 0.75), rgba(11, 11, 11, 0));
  border-bottom: none;
  padding-bottom: var(--space-lg);
}
body.flow .page-header + .section { padding-top: var(--space-lg); }

/* --- Credibility strip: quiet divider, no hard box --- */
body.flow .cred-strip { border: none; background: transparent; }
body.flow .cred-strip__list {
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(161, 124, 74, 0.18);
  border-bottom: 1px solid rgba(245, 243, 238, 0.06);
}

/* --- Subtle blueprint texture on select sections --- */
body.flow .section--texture {
  background-image:
    linear-gradient(rgba(11, 11, 11, 0.42), rgba(11, 11, 11, 0.42)),
    url("../assets/images/blueprint-texture.webp");
  background-size: cover;
  background-position: center;
}

/* --- Problem cards: icons + depth --- */
body.flow .problem-list li {
  background-color: rgba(23, 23, 23, 0.82);
  padding: 1.15rem 1.3rem;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}
body.flow .pl-icon { flex-shrink: 0; color: var(--color-bronze); }

/* --- Cards: shared depth + gold accent on hover --- */
body.flow .card,
body.flow .work-card {
  background-color: rgba(23, 23, 23, 0.82);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
body.flow .card:hover {
  border-color: rgba(161, 124, 74, 0.55);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.32);
}

/* --- Process: circled numbers joined by a gold hairline, icons, panels --- */
body.flow .process { position: relative; margin-top: 3.25rem; }
body.flow .process::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(161, 124, 74, 0.55) 18%, rgba(161, 124, 74, 0.55) 82%, transparent);
}
body.flow .process__step {
  background: rgba(23, 23, 23, 0.72);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0 1.6rem 1.75rem;
  text-align: left;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}
body.flow .process__num {
  position: relative;
  z-index: 1;
  width: 52px;
  height: 52px;
  margin: -26px auto var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-bronze);
  -webkit-text-stroke: 0;
  background: #121212;
  border: 1px solid rgba(161, 124, 74, 0.6);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(161, 124, 74, 0.18);
}
body.flow .process__icon {
  display: flex;
  justify-content: center;
  color: var(--color-bronze);
  margin-bottom: var(--space-sm);
}
body.flow .process__step h3 { text-align: center; margin-bottom: 0.6rem; }
body.flow .process__step p { text-align: center; margin: 0 auto; }

/* --- Portfolio cards: equal heights, refined hover, quieter label --- */
body.flow .work-card__body { display: flex; flex-direction: column; align-items: flex-start; }
body.flow .work-card__body .btn { margin-top: auto; }
body.flow .work-card__body p { margin-bottom: var(--space-sm); }
body.flow .work-card__label { font-size: 0.64rem; opacity: 0.85; padding: 0.2rem 0.5rem; }
body.flow .work-card:hover {
  transform: translateY(-4px);
  border-color: rgba(161, 124, 74, 0.6);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.35);
}
body.flow .mockup-screen img { transition: transform 0.35s ease; }
body.flow .work-card:hover .mockup-screen img { transform: scale(1.03); }

/* --- Why Chevier: 2x2 grid, roomier cards, narrower lead --- */
body.flow .why-lead { max-width: 54ch; }
body.flow .why-grid .card--benefit { padding: var(--space-lg); }
body.flow .why-grid .card__icon { margin-bottom: 0.85rem; }
body.flow .why-grid h3 { margin-bottom: 0.5rem; }

/* --- About hero: dark construction backdrop, intro left --- */
.about-hero {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
  background-color: var(--color-black);
  background-image:
    linear-gradient(to bottom, rgba(11, 11, 11, 0.45) 0%, rgba(11, 11, 11, 0) 25%),
    linear-gradient(to bottom, rgba(11, 11, 11, 0) 70%, #0B0B0B 100%),
    linear-gradient(93deg, #0B0B0B 0%, rgba(11, 11, 11, 0.94) 42%, rgba(11, 11, 11, 0.55) 62%, rgba(11, 11, 11, 0.25) 100%),
    url("../assets/images/about-hero-bg.webp");
  background-size: cover;
  background-position: right center;
}
.about-hero__intro { max-width: 560px; }
.about-hero__intro p { margin-top: var(--space-sm); }

/* --- Full-bleed visual band (Services page divider) --- */
.visual-band {
  height: clamp(220px, 26vw, 380px);
  background-color: var(--color-charcoal);
  background-image:
    linear-gradient(to bottom, #0B0B0B 0%, rgba(11, 11, 11, 0.30) 32%, rgba(11, 11, 11, 0.30) 68%, #0B0B0B 100%),
    url("../assets/images/services-band.webp");
  background-size: cover;
  background-position: center 55%;
}

/* --- Mission + values: text left, icon stack right of a hairline --- */
.mission-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.values-stack {
  display: grid;
  gap: var(--space-lg);
  padding-left: var(--space-xl);
  border-left: 1px solid var(--color-line);
}
.values-stack__item { display: flex; gap: var(--space-md); align-items: flex-start; }
.values-stack__item .card__icon { flex-shrink: 0; margin-top: 0.15rem; }
.values-stack__item h3 { font-size: 0.98rem; letter-spacing: 0.07em; margin-bottom: 0.3rem; }
.values-stack__item p { font-size: 0.93rem; }

/* --- Founder photo shown at natural proportions, no cropping --- */
.founder__photo--natural { background: rgba(23, 23, 23, 0.6); }
.founder__photo--natural img { aspect-ratio: auto; object-fit: contain; width: 100%; height: auto; }

/* Two-column credential checklist */
.cred-list--cols { grid-template-columns: 1fr 1fr; column-gap: var(--space-lg); }

/* --- CTA banner (About): icon + text + button in one contained card --- */
.cta-banner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background-color: rgba(23, 23, 23, 0.82);
  background-image:
    linear-gradient(90deg, rgba(17, 17, 17, 0.92) 40%, rgba(17, 17, 17, 0.65) 100%),
    url("../assets/images/blueprint-texture.webp");
  background-size: cover;
  background-position: right center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
}
.cta-banner__icon { color: var(--color-bronze); flex-shrink: 0; }
.cta-banner__text { flex: 1; }
.cta-banner__text h2 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); margin-bottom: 0.4rem; }
.cta-banner__text p { font-size: 0.95rem; }
.cta-banner .btn { flex-shrink: 0; }

@media (max-width: 860px) {
  .mission-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .values-stack { padding-left: 0; border-left: none; border-top: 1px solid var(--color-line); padding-top: var(--space-lg); }
  .cred-list--cols { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; align-items: flex-start; gap: var(--space-md); padding: var(--space-lg); }
}

/* --- Founder: tighter, gold-trimmed photo --- */
body.flow .founder { gap: var(--space-lg); }
body.flow .founder__photo {
  border-color: rgba(161, 124, 74, 0.45);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

/* --- Final CTA: textured close, soft glow, smooth fade to footer --- */
body.flow .cta-band {
  border: none;
  padding: 4.25rem 0 4.75rem;
  background-image:
    linear-gradient(to bottom, #0B0B0B 0%, rgba(11, 11, 11, 0.45) 22%, rgba(11, 11, 11, 0.45) 78%, #0B0B0B 100%),
    url("../assets/images/blueprint-texture.webp");
  background-size: cover;
  background-position: center;
}
body.flow .cta-band .eyebrow::before { display: none; }
/* .btn--glow previously cast a 34px bronze halo. The glow is gone; the final
   CTA now reads as a slightly larger button instead of a lit one. */
.btn--glow { padding: 1.05rem 2.4rem; }
body.flow .cta-band__trust {
  margin: var(--space-sm) auto 0;
  font-size: 0.88rem;
  color: var(--color-gray-dark);
}
body.flow .cta-band__contact { margin-top: var(--space-sm); font-size: 0.88rem; }

/* --- Footer: continuation, not a new block --- */
body.flow .site-footer { border-top: none; padding-top: var(--space-lg); }

/* --- Homepage responsive adjustments --- */
@media (max-width: 960px) {
  body.flow .process::before { display: none; }
  body.flow .process__step { margin-top: 26px; }
}
@media (max-width: 640px) {
  body.flow .why-grid { grid-template-columns: 1fr; }
  body.flow .section { padding: 3.5rem 0; }
}

/* ==========================================================================
   MOTION SYSTEM (scoped to body.flow)
   A single, restrained motion language shared by every page so the site
   feels like one continuous piece: slow hero drift, scroll-reveals, and
   consistent hover lifts. All of it disables under prefers-reduced-motion.
   ========================================================================== */

/* --- Hero: very slow Ken Burns drift so the image breathes --- */
@keyframes chv-drift {
  0%   { transform: scale(1.06) translate3d(0, 0, 0); }
  50%  { transform: scale(1.12) translate3d(-1.2%, -0.8%, 0); }
  100% { transform: scale(1.06) translate3d(0, 0, 0); }
}

body.flow .hero { position: relative; overflow: hidden; isolation: isolate; }

/* The drifting layer sits behind content; the section keeps its gradients */
body.flow .hero__media {
  position: absolute;
  inset: -2%;
  z-index: -3;
  background-image: url("../assets/images/chevier-homepage-hero.webp");
  background-size: cover;
  background-position: center 40%;
  animation: chv-drift 42s ease-in-out infinite;
  will-change: transform;
}

/* Optional video layer — drop in a file and it takes over from the image.
   The image above stays as the poster/fallback underneath. */
body.flow .hero__video {
  position: absolute;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

/* A single static warm light over the image side. Previously this pulsed on a
   14s loop; the pulse read as a glow effect, so it is now held still and
   dialled back — depth without decoration. */
body.flow .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(58% 52% at 72% 45%, rgba(161, 124, 74, 0.13), transparent 70%);
}

/* --- Scroll reveal: sections rise gently into place --- */
.reveal {
  opacity: 0;
  transform: translate3d(0, 22px, 0);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: translate3d(0, 0, 0); }

/* Staggered children (cards, steps, values) cascade in */
.reveal-group > * {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.reveal-group.is-visible > * { opacity: 1; transform: translate3d(0, 0, 0); }
.reveal-group.is-visible > *:nth-child(1) { transition-delay: 0.00s; }
.reveal-group.is-visible > *:nth-child(2) { transition-delay: 0.07s; }
.reveal-group.is-visible > *:nth-child(3) { transition-delay: 0.14s; }
.reveal-group.is-visible > *:nth-child(4) { transition-delay: 0.21s; }
.reveal-group.is-visible > *:nth-child(5) { transition-delay: 0.28s; }
.reveal-group.is-visible > *:nth-child(6) { transition-delay: 0.35s; }

/* --- Bronze rule that draws itself under section headings --- */
.section-head .eyebrow::before { transition: width 0.8s cubic-bezier(0.22, 0.61, 0.36, 1); }
.reveal .eyebrow::before { width: 0; }
.reveal.is-visible .eyebrow::before { width: 28px; }

/* --- Full-bleed images get a slow drift too (About visual, etc.) --- */
.about-hero__visual img,
.founder__photo img {
  transition: transform 0.9s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.about-hero__visual:hover img { transform: scale(1.03); }

/* --- Respect reduced motion: everything becomes static --- */
@media (prefers-reduced-motion: reduce) {
  body.flow .hero__media,
  body.flow .hero::after { animation: none; }
  .reveal, .reveal-group > * { opacity: 1; transform: none; transition: none; }
  .reveal .eyebrow::before { width: 28px; }
}

/* --- Tablets and below --- */
@media (max-width: 960px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .cred-strip__list { grid-template-columns: repeat(2, 1fr); }
  .problem-list { grid-template-columns: repeat(2, 1fr); }
  .founder { grid-template-columns: 280px 1fr; gap: var(--space-lg); }
  .contact-layout { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

/* --- Mobile navigation & stacking --- */
@media (max-width: 780px) {
  .nav__toggle { display: block; }

  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-black);
    border-bottom: 1px solid var(--color-line);
    padding: var(--space-sm) var(--container-pad) var(--space-md);
    display: none;
  }

  .nav__links.open { display: flex; }

  .nav__links a:not(.btn) {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--color-line);
    font-size: 1rem;
  }

  .nav__links .btn { margin-top: var(--space-sm); }
}

/* --- Phones --- */
@media (max-width: 640px) {
  :root { --logo-height-nav: 48px; }

  .section { padding: var(--space-xl) 0; }

  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .cred-strip__list { grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
  .problem-list { grid-template-columns: 1fr; }

  .founder { grid-template-columns: 1fr; }
  .founder__photo { max-width: 320px; }

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

  /* Full-width only for primary page actions. Small buttons inside cards keep
     their natural width so card footers don't turn into stacked blocks. */
  .btn-row > .btn:not(.btn--small) { width: 100%; }

  .work-card__media { min-height: 190px; }
  .mockup-phone { flex-basis: 60px; width: 60px; }

  .site-footer__grid { grid-template-columns: 1fr; }
}