/* =========================================================
   Willowbark Consulting LLC - Main Stylesheet
   ========================================================= */

/* ---------------------------------------------------------
   1. Custom Properties
   --------------------------------------------------------- */
:root {
  --navy:           #1e3a5f;
  --navy-dark:      #162d4a;
  --navy-light:     #2b5082;
  --accent:         #2b6cb0;
  --accent-hover:   #245d9c;
  --text:           #2d3748;
  --text-muted:     #64748b;
  --bg:             #ffffff;
  --bg-alt:         #f7f9fc;
  --bg-dark:        #1e3a5f;
  --border:         #d1dce8;
  --border-light:   #e8eef5;

  --font-sans:      'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 1rem;
  --line-height:    1.7;

  --radius:         4px;
  --transition:     0.2s ease;

  --container-max:  1140px;
  --container-pad:  1.5rem;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
}

/* ---------------------------------------------------------
   2. Reset
   --------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--text);
  background: var(--bg);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { list-style: none; }

/* ---------------------------------------------------------
   3. Typography
   --------------------------------------------------------- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--navy);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: var(--space-sm); }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.75;
}

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

/* ---------------------------------------------------------
   4. Container
   --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---------------------------------------------------------
   5. Header and Navigation
   --------------------------------------------------------- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.logo span { color: var(--accent); }

.logo:hover { text-decoration: none; color: var(--navy-dark); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--navy);
  background: var(--bg-alt);
  text-decoration: none;
}

.nav-links .nav-cta {
  margin-left: var(--space-xs);
  padding: 0.4rem 1rem;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
}

.nav-links .nav-cta:hover {
  background: var(--navy-dark);
  color: #fff;
}

/* ---------------------------------------------------------
   6. Mobile Navigation
   --------------------------------------------------------- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger .bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}
.hamburger[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  background: var(--bg);
  border-top: 1px solid var(--border-light);
  padding: var(--space-sm) 0;
}

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

.mobile-nav a {
  display: block;
  padding: 0.65rem var(--container-pad);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { background: var(--bg-alt); color: var(--navy); }

.mobile-nav .nav-cta {
  margin: var(--space-sm) var(--container-pad) 0;
  display: inline-block;
  padding: 0.6rem 1.25rem;
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  border-bottom: none;
}

.mobile-nav .nav-cta:hover { background: var(--navy-dark); }

/* ---------------------------------------------------------
   7. Buttons
   --------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  line-height: 1.4;
}

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

.btn-primary:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  color: #fff;
  text-decoration: none;
}

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

.btn-secondary:hover {
  background: var(--navy);
  color: #fff;
  text-decoration: none;
}

.btn-light {
  background: #fff;
  color: var(--navy);
  border-color: #fff;
}

.btn-light:hover {
  background: var(--bg-alt);
  border-color: var(--bg-alt);
  color: var(--navy);
  text-decoration: none;
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

/* ---------------------------------------------------------
   8. Hero (Home)
   --------------------------------------------------------- */
.hero {
  background: var(--bg-dark);
  color: #fff;
  padding: var(--space-2xl) 0;
}

.hero h1 {
  color: #fff;
  margin-bottom: var(--space-md);
}

.hero .lead {
  color: rgba(255,255,255,0.82);
  max-width: 680px;
  margin-bottom: var(--space-lg);
}

/* ---------------------------------------------------------
   9. Page Hero (inner pages)
   --------------------------------------------------------- */
.page-hero {
  background: var(--bg-dark);
  color: #fff;
  padding: var(--space-xl) 0;
}

.page-hero h1 { color: #fff; margin-bottom: var(--space-sm); }

.page-hero .page-hero-sub {
  color: rgba(255,255,255,0.78);
  font-size: 1.1rem;
  max-width: 600px;
}

/* ---------------------------------------------------------
   10. Credibility Strip
   --------------------------------------------------------- */
.credibility-strip {
  background: var(--navy);
  padding: var(--space-lg) 0;
}

.credibility-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.15);
}

.credibility-item {
  background: var(--navy);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------
   11. Sections
   --------------------------------------------------------- */
.section {
  padding: var(--space-xl) 0;
}

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

.section-dark {
  background: var(--bg-dark);
  color: #fff;
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #fff;
}

.section-dark p,
.section-dark li {
  color: rgba(255,255,255,0.85);
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-header p {
  color: var(--text-muted);
  max-width: 640px;
  font-size: 1.05rem;
}

.section-header.centered {
  text-align: center;
}

.section-header.centered p {
  margin-inline: auto;
}

.eyebrow {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.section-dark .eyebrow { color: rgba(255,255,255,0.6); }

/* ---------------------------------------------------------
   12. Service Cards
   --------------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-top: 3px solid var(--navy);
  border-radius: var(--radius);
  padding: var(--space-md);
  transition: box-shadow var(--transition);
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(30,58,95,0.1);
}

.service-card h3 {
  margin-bottom: var(--space-xs);
  font-size: 1.1rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.service-card .card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--navy);
}

.service-card .card-link:hover { color: var(--accent); }

/* ---------------------------------------------------------
   13. Content Columns
   --------------------------------------------------------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.two-col-wide {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-xl);
  align-items: start;
}

/* ---------------------------------------------------------
   14. Checklist / Assessment Lists
   --------------------------------------------------------- */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.check-list li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.97rem;
  color: var(--text);
}

.check-list li::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--navy);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.35em;
}

.section-dark .check-list li { color: rgba(255,255,255,0.85); }
.section-dark .check-list li::before { background: rgba(255,255,255,0.6); }

.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}

/* ---------------------------------------------------------
   15. Info Cards (audience, deliverables, etc.)
   --------------------------------------------------------- */
.info-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
}

.info-card h4 {
  margin-bottom: var(--space-xs);
  font-size: 1rem;
  color: var(--navy);
}

.info-card p, .info-card li {
  font-size: 0.93rem;
  color: var(--text-muted);
}

.info-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-sm);
}

/* ---------------------------------------------------------
   16. Positioning / Callout Block
   --------------------------------------------------------- */
.callout-block {
  border-left: 4px solid var(--navy);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout-block h2 { margin-bottom: var(--space-sm); }

/* ---------------------------------------------------------
   17. CTA Banner
   --------------------------------------------------------- */
.cta-banner {
  background: var(--bg-dark);
  padding: var(--space-xl) 0;
  text-align: center;
}

.cta-banner h2 { color: #fff; margin-bottom: var(--space-sm); }

.cta-banner p {
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

/* ---------------------------------------------------------
   18. Download Cards (Sample Work)
   --------------------------------------------------------- */
.download-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.download-card h3 { margin-bottom: 0; }

.download-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

/* ---------------------------------------------------------
   19. Contact Form
   --------------------------------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(43,108,176,0.12);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  padding-right: 2.5rem;
}

.contact-aside h3 { margin-bottom: var(--space-sm); }

.contact-aside p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.contact-email a {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
}

/* ---------------------------------------------------------
   20. Footer
   --------------------------------------------------------- */
footer {
  background: #111927;
  color: rgba(255,255,255,0.7);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.footer-brand .footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: block;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.55);
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-sm);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-col ul li a,
.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-col ul li a:hover,
.footer-col a:hover {
  color: #fff;
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-md);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

/* ---------------------------------------------------------
   21. Responsive
   --------------------------------------------------------- */

/* Nav collapses to hamburger at tablet/mobile widths.
   Kept below 900px so the desktop nav stays visible on
   common laptop widths (≥ ~1024 px) even with browser zoom. */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .bio-layout { grid-template-columns: 1fr; }
  .headshot { width: fit-content; margin-inline: auto; }
}

@media (max-width: 900px) {
  .credibility-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col, .two-col-wide { grid-template-columns: 1fr; gap: var(--space-lg); }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
}

@media (max-width: 600px) {
  .credibility-grid { grid-template-columns: 1fr; }
  .credibility-item { padding: var(--space-sm) var(--space-md); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: var(--space-xl) 0; }
  .section { padding: var(--space-lg) 0; }
  .btn-group { flex-direction: column; align-items: flex-start; }
}

/* ---------------------------------------------------------
   22. About Page — Bio / Headshot Layout
   --------------------------------------------------------- */
.bio-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.headshot {
  margin-bottom: 0;
}

.headshot img {
  width: 220px;
  height: 220px;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  filter: grayscale(100%);
  display: block;
}

/* ---------------------------------------------------------
   23. About Page — Organization Logo Wall
   --------------------------------------------------------- */
.org-logos-intro {
  color: var(--text);
  font-size: 0.97rem;
  margin-bottom: var(--space-lg);
}

.org-logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-sm);
  align-items: center;
}

.org-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  min-height: 72px;
}

.org-logo-item img {
  max-width: 120px;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.75);
  transition: filter var(--transition);
  display: block;
}

.org-logo-item img:hover {
  filter: grayscale(20%) opacity(0.9);
}

@media (max-width: 600px) {
  .org-logo-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .headshot img {
    width: 160px;
    height: 160px;
  }
}

/* ---------------------------------------------------------
   24. Utilities
   --------------------------------------------------------- */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

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