/* ============================================================
   Sunburn Consulting — Stylesheet
   sunburnconsulting.com
   ============================================================ */

/* ============================================================
   1. CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Brand colors — do not add other hues */
  --navy:    #1B2D41;
  --navy-80: #3A4D63;
  --navy-60: #5E6F84;
  --navy-40: #94A0AF;
  --paper:   #FAFAFA;
  --paper-2: #F2F2EF;
  --line:    #D9DCE0;
  --white:   #FFFFFF;

  /* Typography */
  --font-serif: 'Fraunces', Georgia, serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  /* Motion */
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--paper);
  color: var(--navy);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  padding: 0;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--navy-60);
  line-height: 1;
}

.heading-xl {
  font-family: var(--font-serif);
  font-size: clamp(2.375rem, 5.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.heading-lg {
  font-family: var(--font-serif);
  font-size: clamp(1.875rem, 4vw, 2.875rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.012em;
}

.heading-md {
  font-family: var(--font-serif);
  font-size: clamp(1.375rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.heading-sm {
  font-family: var(--font-serif);
  font-size: clamp(1.125rem, 2vw, 1.4375rem);
  font-weight: 600;
  line-height: 1.22;
}

.subheading {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--navy-80);
  line-height: 1.65;
}

.body-text {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--navy-80);
  line-height: 1.7;
}

.caption {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--navy-60);
  line-height: 1.5;
}

/* ============================================================
   4. LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 2rem;
}

.container--narrow {
  max-width: 780px;
  margin-inline: auto;
  padding-inline: 2rem;
}

.section {
  padding-block: 6rem;
}

.section--sm {
  padding-block: 4rem;
}

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

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

.section-intro {
  margin-bottom: 3.5rem;
}

.section-intro .eyebrow {
  margin-bottom: 0.875rem;
}

.section-intro__heading {
  max-width: 26ch;
}

/* ============================================================
   5. WORDMARK
   ============================================================ */
.wordmark {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  color: var(--navy);
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
}

.wordmark--white {
  color: var(--white);
}

.wordmark-sunburn {
  font-weight: 600;
}

.wordmark-consulting {
  font-weight: 400;
}

/* ============================================================
   7. NAVIGATION
   ============================================================ */
.site-nav {
  position: sticky;
  top: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}

.site-nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.site-nav__link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--navy-60);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--navy);
  border-bottom-color: var(--navy-40);
}

.site-nav__link--active {
  color: var(--navy);
  font-weight: 500;
  border-bottom-color: var(--navy);
}

.site-nav__hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  color: var(--navy);
}

.icon-close {
  display: none;
}

.site-nav__hamburger[aria-expanded="true"] .icon-menu {
  display: none;
}

.site-nav__hamburger[aria-expanded="true"] .icon-close {
  display: block;
}

/* Mobile dropdown menu */
.site-nav__mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.site-nav__mobile-menu.is-open {
  display: flex;
}

.site-nav__mobile-menu li {
  border-bottom: 1px solid var(--line);
}

.site-nav__mobile-menu li:last-child {
  border-bottom: none;
}

.site-nav__mobile-menu .site-nav__link {
  display: block;
  padding: 1rem 2rem;
  font-size: 1rem;
  color: var(--navy);
  border-bottom: none;
  border-left: none;
}

/* ============================================================
   8. FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy);
  color: var(--white);
  padding-top: 4.5rem;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 3rem;
}

.site-footer__left {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.site-footer__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  text-align: right;
}

.site-footer__tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.62);
  max-width: 34ch;
  line-height: 1.55;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.site-footer a:hover {
  color: var(--white);
}

.site-footer .wordmark--white {
  color: var(--white);
}

.site-footer__linkedin-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.25rem;
}

.site-footer__linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
  text-decoration: none;
}

.site-footer__linkedin-link:hover {
  color: var(--white);
}

.site-footer__bottom {
  margin-top: 3.5rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-footer__copyright {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.42);
}

/* ============================================================
   9. BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.625rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 4px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1;
  white-space: nowrap;
}

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

.btn--primary {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.btn--primary:hover {
  background: var(--navy-80);
  border-color: var(--navy-80);
}

.btn--outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}

.btn--outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

/* ============================================================
   10. HERO (home page)
   ============================================================ */
.hero {
  padding-block: 7rem 6rem;
  border-bottom: 1px solid var(--line);
}

.hero__eyebrow {
  margin-bottom: 1.75rem;
}

.hero__headline {
  max-width: 18ch;
  margin-bottom: 1.5rem;
}

.hero__sub {
  max-width: 50ch;
  margin-bottom: 3rem;
}

.hero__cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Page hero (inner pages — smaller) */
.page-hero {
  padding-block: 5rem 4rem;
  border-bottom: 1px solid var(--line);
}

.page-hero__eyebrow {
  margin-bottom: 1.25rem;
}

.page-hero__headline {
  max-width: 24ch;
  margin-bottom: 1.25rem;
}

.page-hero__sub {
  max-width: 52ch;
}

/* ============================================================
   11. EDITORIAL LIST  (numbered 01 / 02 / 03 motif)
   ============================================================ */
.editorial-list {
  list-style: none;
  padding: 0;
}

.editorial-list__item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 2rem;
  padding-block: 2.5rem;
  border-top: 1px solid var(--line);
  align-items: start;
}

.editorial-list__item:last-child {
  border-bottom: 1px solid var(--line);
}

.editorial-list__num {
  font-family: var(--font-serif);
  font-size: 3.25rem;
  font-weight: 600;
  color: var(--line);
  line-height: 1;
  user-select: none;
  padding-top: 0.25rem;
}

.editorial-list__body {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding-top: 0.375rem;
}

/* ============================================================
   12. CTA BAND  (navy full-bleed section)
   ============================================================ */
.cta-band {
  background: var(--navy);
  color: var(--white);
  padding-block: 6rem;
}

.cta-band .eyebrow {
  color: var(--navy-40);
  margin-bottom: 1.5rem;
}

.cta-band .heading-lg {
  color: var(--white);
  max-width: 22ch;
  margin-bottom: 1.25rem;
}

.cta-band__sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 46ch;
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.cta-band__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============================================================
   13. PROCESS STRIP
   ============================================================ */
.process-section {
  padding-block: 4.5rem;
}

.process-section > .container > .eyebrow {
  margin-bottom: 2.5rem;
  display: block;
}

.process-strip {
  display: flex;
  align-items: flex-start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem 2.5rem 2rem 0;
  flex: 1;
  min-width: 140px;
}

.process-step__num {
  margin-bottom: 0.25rem;
}

.process-step__name {
  font-family: var(--font-serif);
  font-size: 1.1875rem;
  font-weight: 600;
  color: var(--navy);
}

.process-step__desc {
  font-size: 0.875rem;
  color: var(--navy-60);
  line-height: 1.55;
  max-width: 22ch;
}

.process-arrow {
  color: var(--line);
  font-size: 1.5rem;
  padding-top: 2.125rem;
  padding-inline: 0.25rem;
  flex-shrink: 0;
  user-select: none;
}

/* ============================================================
   14. PROJECT CARDS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
  transition: border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--navy-60);
}

.project-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card__body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.project-card__category {
  margin-bottom: 0.25rem;
}

.project-card__title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.25;
}

.project-card__desc {
  font-size: 0.875rem;
  color: var(--navy-60);
  line-height: 1.6;
  margin-top: 0.25rem;
}

/* ============================================================
   15. FOUNDER GRID  (About page)
   ============================================================ */
.founder-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
}

.founder-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  border-top: 2px solid var(--navy);
  padding-top: 2rem;
}

.founder-card__photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 2px;
  display: block;
}

.founder-card__info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.founder-card__name {
  font-family: var(--font-serif);
  font-size: 1.3125rem;
  font-weight: 600;
  color: var(--navy);
}

.founder-card__role {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-60);
}

.founder-card__contact {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.founder-card__contact-item {
  font-size: 0.875rem;
  color: var(--navy-80);
  transition: color var(--transition);
  text-decoration: none;
  display: block;
}

.founder-card__contact-item:hover {
  color: var(--navy);
  text-decoration: underline;
}

.founder-card__linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--navy);
  border: 1px solid var(--navy);
  padding: 0.4375rem 0.875rem;
  border-radius: 4px;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  width: fit-content;
}

.founder-card__linkedin:hover {
  background: var(--navy);
  color: var(--white);
}

.founder-card__linkedin svg {
  flex-shrink: 0;
}

.founder-card__bio {
  font-size: 0.9375rem;
  color: var(--navy-80);
  line-height: 1.65;
  font-style: italic;
}

/* ============================================================
   16. ACCOMPLISHMENTS
   ============================================================ */
.accomplishment-date {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy-40);
  margin-bottom: 0.5rem;
}

/* ============================================================
   17. 404 PAGE
   ============================================================ */
.page-404 {
  min-height: 55vh;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.page-404__inner {
  padding-block: 6rem;
}

.page-404__eyebrow {
  margin-bottom: 1.25rem;
}

.page-404__headline {
  margin-bottom: 1rem;
}

.page-404__sub {
  margin-bottom: 2.5rem;
  max-width: 42ch;
}

/* ============================================================
   18. FOCUS STYLES (accessibility)
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============================================================
   19. SCROLL ANIMATIONS
   ============================================================ */
.fade-rise {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 550ms ease, transform 550ms ease;
}

.fade-rise.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for list items */
.editorial-list__item.fade-rise:nth-child(2) { transition-delay: 80ms; }
.editorial-list__item.fade-rise:nth-child(3) { transition-delay: 160ms; }
.editorial-list__item.fade-rise:nth-child(4) { transition-delay: 240ms; }
.editorial-list__item.fade-rise:nth-child(5) { transition-delay: 320ms; }

.founder-card.fade-rise:nth-child(2) { transition-delay: 90ms; }
.founder-card.fade-rise:nth-child(3) { transition-delay: 180ms; }

.project-card.fade-rise:nth-child(2) { transition-delay: 60ms; }
.project-card.fade-rise:nth-child(3) { transition-delay: 120ms; }
.project-card.fade-rise:nth-child(4) { transition-delay: 60ms; }
.project-card.fade-rise:nth-child(5) { transition-delay: 120ms; }
.project-card.fade-rise:nth-child(6) { transition-delay: 180ms; }

/* Honor reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  .fade-rise {
    opacity: 1;
    transform: none;
    transition: none;
    transition-delay: 0ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   20. RESPONSIVE — TABLET  (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {
  .founder-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .editorial-list__item {
    grid-template-columns: 60px 1fr;
    gap: 1.5rem;
  }

  .editorial-list__num {
    font-size: 2.75rem;
  }

  .hero {
    padding-block: 5rem 4.5rem;
  }

  .section {
    padding-block: 5rem;
  }

  .cta-band {
    padding-block: 5rem;
  }
}

/* ============================================================
   21. RESPONSIVE — MOBILE  (≤ 600px)
   ============================================================ */
@media (max-width: 600px) {
  .container,
  .container--narrow {
    padding-inline: 1.25rem;
  }

  .site-nav__links {
    display: none;
  }

  .site-nav__hamburger {
    display: flex;
  }

  .hero {
    padding-block: 3.5rem 3rem;
  }

  .section {
    padding-block: 3.5rem;
  }

  .section--sm {
    padding-block: 2.5rem;
  }

  .cta-band {
    padding-block: 3.5rem;
  }

  .page-hero {
    padding-block: 3rem 2.5rem;
  }

  .process-section {
    padding-block: 3rem;
  }

  .founder-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .process-strip {
    flex-direction: column;
    border-bottom: none;
  }

  .process-arrow {
    display: none;
  }

  .process-step {
    padding: 1.5rem 0;
    min-width: 100%;
    border-bottom: 1px solid var(--line);
  }

  .process-step:last-of-type {
    border-bottom: none;
  }

  .editorial-list__item {
    grid-template-columns: 48px 1fr;
    gap: 1rem;
    padding-block: 2rem;
  }

  .editorial-list__num {
    font-size: 2rem;
  }

  .site-footer__inner {
    flex-direction: column;
    gap: 2rem;
  }

  .site-footer__right {
    align-items: flex-start;
    text-align: left;
  }

  .site-footer__bottom .container {
    flex-direction: column;
    gap: 0.625rem;
    align-items: flex-start;
  }

  .hero__cta-group {
    flex-direction: column;
  }

  .hero__cta-group .btn {
    width: 100%;
    text-align: center;
  }

  .section-intro {
    margin-bottom: 2.5rem;
  }
}

/* ============================================================
   21. CONTACT FORM
   ============================================================ */
.contact-form {
  max-width: 520px;
  margin-top: 3rem;
}

.form-field {
  margin-bottom: 1.5rem;
}

.form-field label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-60);
  margin-bottom: 0.5rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--navy);
  background: var(--white);
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

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

.form-field textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.6;
}

.form-notice {
  margin-top: 2rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper-2);
}

.form-notice p {
  font-size: 0.875rem;
  color: var(--navy-60);
  line-height: 1.6;
}

.form-success {
  display: none;
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 4px;
}

.form-success p {
  font-size: 0.9375rem;
  color: #166534;
  line-height: 1.6;
}

.form-error {
  display: none;
  margin-top: 1rem;
  font-size: 0.875rem;
  color: #dc2626;
}