/* ==========================================================================
   ZD LLC — zamdeshields.org
   Stack: plain HTML/CSS/JS, no frameworks
   ========================================================================== */

/* --------------------------------------------------------------------------
   Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Source+Sans+3:wght@300;400;500;600&display=swap');

/* --------------------------------------------------------------------------
   Custom properties
   -------------------------------------------------------------------------- */
:root {
  --green-deep:   #2A3828;
  --green-sage:   #B8CEB5;
  --green-light:  #F4F7F2;
  --text-dark:    #1A2618;
  --text-light:   #E8EDE6;
  --text-muted:   #5a6b58;
  --border:       #ccd9c9;
  --max-width:    1100px;
  --gap:          2rem;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 400;
  color: var(--text-dark);
  background: #fff;
  line-height: 1.7;
}

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

a {
  color: var(--green-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
a:hover { color: var(--text-muted); }

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 500;
  line-height: 1.2;
  color: var(--green-deep);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.7rem); }
h4 { font-size: 1.15rem; }

p { margin-bottom: 1.2rem; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

section { padding-block: 5rem; }

.section-label {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.section-header {
  margin-bottom: 3rem;
}

.divider {
  width: 2.5rem;
  height: 2px;
  background: var(--green-sage);
  margin-top: 1rem;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--green-deep);
  color: var(--text-light);
  border-color: var(--green-deep);
}
.btn-primary:hover {
  background: transparent;
  color: var(--green-deep);
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border-color: var(--green-sage);
}
.btn-outline:hover {
  background: var(--green-sage);
  color: var(--green-deep);
}

.btn-outline-dark {
  background: transparent;
  color: var(--green-deep);
  border-color: var(--green-deep);
}
.btn-outline-dark:hover {
  background: var(--green-deep);
  color: var(--text-light);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--green-deep);
  border-bottom: 1px solid rgba(184,206,181,0.15);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  gap: 1rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo img {
  height: 2.6rem;
  width: auto;
}

.nav-logo-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text-light);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-logo-text:hover { color: var(--green-sage); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-light);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green-sage);
  border-bottom-color: var(--green-sage);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-light);
  transition: transform 0.3s, opacity 0.3s;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--green-deep);
  color: var(--text-light);
  padding-block: 2.5rem;
  font-size: 0.875rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
}

.footer-links a {
  color: var(--green-sage);
  text-decoration: none;
  font-size: 0.85rem;
}
.footer-links a:hover { color: var(--text-light); text-decoration: underline; }

/* --------------------------------------------------------------------------
   Hero (home)
   -------------------------------------------------------------------------- */
.hero {
  background: var(--green-deep);
  color: var(--text-light);
  padding-block: 7rem 6rem;
  text-align: center;
}

.hero-logo {
  margin-inline: auto;
  margin-bottom: 2.5rem;
  height: 90px;
  width: auto;
}

.hero h1 {
  color: var(--text-light);
  font-weight: 300;
  letter-spacing: 0.03em;
  margin-bottom: 1.25rem;
}

.hero-tagline {
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  color: var(--green-sage);
  font-family: 'Source Sans 3', sans-serif;
  font-weight: 300;
  letter-spacing: 0.04em;
  margin-bottom: 2.5rem;
}

/* --------------------------------------------------------------------------
   Credibility bar
   -------------------------------------------------------------------------- */
.credibility-bar {
  background: var(--green-light);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: 1.25rem;
}

.credibility-bar p {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-align: center;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Three-column teaser (home)
   -------------------------------------------------------------------------- */
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  margin-top: 3rem;
}

.teaser-card {
  padding: 2rem 1.75rem;
  border-top: 2px solid var(--green-sage);
}

.teaser-card h3 {
  margin-bottom: 0.75rem;
}

.teaser-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.teaser-card a.text-link {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--green-deep);
  border-bottom: 1px solid var(--green-sage);
  padding-bottom: 2px;
}
.teaser-card a.text-link:hover { border-bottom-color: var(--green-deep); }

.home-cta {
  text-align: center;
  padding-block: 5rem;
  background: var(--green-light);
  border-top: 1px solid var(--border);
}

.home-cta h2 { margin-bottom: 0.75rem; }
.home-cta p { color: var(--text-muted); margin-bottom: 2rem; }

/* --------------------------------------------------------------------------
   About page
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 4rem;
  align-items: start;
}

.headshot-placeholder {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--green-sage);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
}

.headshot-placeholder span {
  font-family: 'Cormorant Garamond', serif;
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--green-deep);
}

.about-bio p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-dark);
}

.collaborations {
  background: var(--green-light);
  border-top: 1px solid var(--border);
  padding-block: 3rem;
}

.collaborations p {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 760px;
}

/* --------------------------------------------------------------------------
   Services page
   -------------------------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
  margin-top: 3rem;
}

.service-card {
  padding: 2rem 2rem 2rem 1.75rem;
  border-left: 3px solid var(--green-sage);
  background: var(--green-light);
}

.service-card h3 {
  margin-bottom: 0.6rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

.services-closing {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
}
.services-closing p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* --------------------------------------------------------------------------
   Speaking page
   -------------------------------------------------------------------------- */
.speaking-timeline {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 2rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.timeline-item:first-child {
  border-top: 1px solid var(--border);
}

.timeline-date {
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 0.2rem;
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}

.timeline-content .venue {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.timeline-content .forthcoming {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--green-sage);
  color: var(--green-deep);
  padding: 0.15rem 0.6rem;
  margin-top: 0.5rem;
}

.topics-section {
  background: var(--green-light);
  border-top: 1px solid var(--border);
  padding-block: 4rem;
}

.topics-list {
  list-style: none;
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem 2rem;
}

.topics-list li {
  font-size: 0.95rem;
  color: var(--text-dark);
  padding-left: 1.25rem;
  position: relative;
}

.topics-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 0.4rem;
  height: 2px;
  background: var(--green-sage);
}

/* --------------------------------------------------------------------------
   CV page
   -------------------------------------------------------------------------- */
.cv-section {
  padding-block: 3rem 0;
}

.cv-section:last-child { padding-bottom: 0; }

.cv-section + .cv-section {
  border-top: 1px solid var(--border);
  padding-top: 3rem;
}

.cv-entry {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.cv-entry:last-child { margin-bottom: 0; }

.cv-years {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding-top: 0.25rem;
}

.cv-entry h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.cv-entry .org {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.cv-entry p {
  font-size: 0.95rem;
  color: var(--text-dark);
  margin: 0;
}

.cv-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 2.5rem;
}

.affiliations-list {
  list-style: none;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.affiliations-list li {
  font-size: 0.95rem;
  color: var(--text-dark);
  padding-left: 1.25rem;
  position: relative;
}

.affiliations-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.4rem;
  height: 2px;
  background: var(--green-sage);
}

/* --------------------------------------------------------------------------
   Contact page
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 5rem;
  align-items: start;
}

.contact-info h2 { margin-bottom: 0.75rem; }
.contact-info .lead { margin-bottom: 2rem; }

.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.contact-details li {
  font-size: 0.95rem;
  color: var(--text-dark);
}

.contact-details li strong {
  font-weight: 600;
  color: var(--text-muted);
  display: inline-block;
  width: 6rem;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.contact-form {
  padding: 2.5rem;
  background: var(--green-light);
  border-top: 3px solid var(--green-sage);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  font-family: 'Source Sans 3', sans-serif;
  font-size: 0.95rem;
  color: var(--text-dark);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 0;
  appearance: none;
  transition: border-color 0.2s;
}

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

.form-group textarea { resize: vertical; min-height: 130px; }

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1rem;
  font-style: italic;
}

/* --------------------------------------------------------------------------
   Page header (interior pages)
   -------------------------------------------------------------------------- */
.page-header {
  background: var(--green-deep);
  color: var(--text-light);
  padding-block: 4rem 3.5rem;
}

.page-header h1 {
  color: var(--text-light);
  font-weight: 300;
}

.page-header .lead {
  color: var(--green-sage);
  margin-top: 1rem;
  max-width: 680px;
}

/* --------------------------------------------------------------------------
   404 page
   -------------------------------------------------------------------------- */
.not-found {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-direction: column;
  gap: 1.5rem;
  padding: 4rem 1.5rem;
}

.not-found h1 { font-size: 6rem; color: var(--green-sage); line-height: 1; }
.not-found h2 { color: var(--green-deep); }
.not-found p { color: var(--text-muted); max-width: 480px; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .teaser-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .topics-list { grid-template-columns: 1fr; }
  .cv-entry { grid-template-columns: 1fr; gap: 0.5rem; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; }
}

@media (max-width: 700px) {
  section { padding-block: 3.5rem; }
  .hero { padding-block: 4.5rem 4rem; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 4.5rem; left: 0; right: 0; background: var(--green-deep); padding: 1rem 1.5rem 1.5rem; gap: 0; border-top: 1px solid rgba(184,206,181,0.2); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 0.75rem 0; border-bottom: 1px solid rgba(184,206,181,0.1); font-size: 1rem; }
  .nav-links a:last-child { border-bottom: none; }
  .nav-toggle { display: flex; }
  .site-nav { position: relative; }
  .footer-inner { flex-direction: column; }
  .contact-form { padding: 1.5rem; }
}

@media (max-width: 500px) {
  .about-grid { text-align: center; }
  .headshot-placeholder { margin-inline: auto; }
}