/* ============================================================
   Derek Major — derekmajor.com
   Stylesheet
   ============================================================ */

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

:root {
  --clr-bg:         #FFFFFF;
  --clr-surface:    #F5F7F7;
  --clr-dark:       #0D1B2A;
  --clr-mid:        #3D5166;
  --clr-teal:       #0B6C8A;
  --clr-teal-light: #E6F2F5;
  --clr-rule:       #D6DEE3;
  --clr-text:       #1A2B38;
  --clr-muted:      #5C7080;

  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'DM Serif Display', Georgia, serif;

  --max-w: 1100px;
  --section-pad: 64px 24px;
  --radius: 4px;

  --transition: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a  { color: inherit; text-decoration: none; }

/* --- Typography -------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.2;
  color: var(--clr-dark);
}

h1 { font-size: clamp(2.6rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { color: var(--clr-mid); }

.label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-teal);
  display: block;
  margin-bottom: 16px;
}

/* --- Layout ------------------------------------------------ */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section   { padding: var(--section-pad); }
.section-sm { padding: 40px 24px; }

/* --- Nav --------------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-nav.scrolled {
  border-color: var(--clr-rule);
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--clr-dark);
  letter-spacing: -0.01em;
}
.nav-logo span { color: var(--clr-teal); }
.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-mid);
  letter-spacing: 0.01em;
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--clr-dark); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-dark);
  transition: var(--transition);
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
}
.btn-primary {
  background: var(--clr-teal);
  color: #fff;
  border-color: var(--clr-teal);
}
.btn-primary:hover { background: #094f66; border-color: #094f66; }

.btn-ghost {
  background: transparent;
  color: var(--clr-teal);
  border-color: var(--clr-teal);
}
.btn-ghost:hover { background: var(--clr-teal); color: #fff; }

/* --- Hero -------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 52px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-text h1 { margin-bottom: 20px; }
.hero-tagline {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--clr-mid);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}
.hero-body {
  font-size: 1.05rem;
  color: var(--clr-mid);
  margin-bottom: 40px;
  max-width: 480px;
}
.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: flex-end;
}
.hero-image-wrap img {
  width: 100%;
  max-width: 460px;
  border-radius: 6px;
  object-fit: cover;
  object-position: top center;
}

/* --- Rule -------------------------------------------------- */
hr.rule {
  border: none;
  border-top: 1px solid var(--clr-rule);
  margin: 0;
}

/* --- Philosophy -------------------------------------------- */
.section-philosophy {
  background: var(--clr-dark);
  color: #fff;
  padding: 64px 24px;
}
.section-philosophy .container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: start;
}
.philosophy-heading h2 { color: #fff; }
.philosophy-heading .label { color: #6EC2D8; }

.philosophy-body p {
  color: rgba(255,255,255,0.78);
  font-size: 1.1rem;
  line-height: 1.85;
  margin-bottom: 24px;
}
.philosophy-body p:last-child { margin-bottom: 0; }
.philosophy-body strong { color: #fff; font-weight: 500; }

/* --- What I Do --------------------------------------------- */
.section-work { background: var(--clr-bg); }
.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: start;
  margin-top: 40px;
}
.work-intro p {
  font-size: 1.05rem;
  margin-bottom: 32px;
}
.work-engagements {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.engagement-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--clr-rule);
}
.engagement-item:first-child { border-top: 1px solid var(--clr-rule); }
.engagement-num {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clr-teal);
  min-width: 28px;
  padding-top: 3px;
}
.engagement-text {
  font-size: 0.95rem;
  color: var(--clr-mid);
  line-height: 1.6;
}
.work-closing {
  margin-top: 40px;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--clr-muted);
}

.work-photo img {
  border-radius: 6px;
  width: 100%;
  max-height: 540px;
  object-fit: cover;
  object-position: center top;
}

/* --- Callout band ------------------------------------------ */
.section-callout {
  background: var(--clr-teal-light);
  padding: 56px 24px;
  text-align: center;
}
.section-callout h2 { margin-bottom: 16px; }
.section-callout p  { max-width: 560px; margin: 0 auto 36px; }

/* --- Advisory page ----------------------------------------- */
.advisory-hero {
  min-height: 44vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  background: var(--clr-dark);
  color: #fff;
}
.advisory-hero h1 { color: #fff; }
.advisory-hero .label { color: #6EC2D8; }
.advisory-hero p   { color: rgba(255,255,255,0.75); max-width: 560px; margin-top: 20px; font-size: 1.05rem; }

.advisory-body { padding: var(--section-pad); }
.advisory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
}
.advisory-section h3 { margin-bottom: 20px; }
.advisory-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.advisory-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--clr-rule);
  color: var(--clr-mid);
  font-size: 0.95rem;
}
.advisory-list li::before {
  content: '';
  display: none;
}
.advisory-note {
  margin-top: 40px;
  padding: 32px;
  background: var(--clr-surface);
  border-left: 3px solid var(--clr-teal);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.advisory-note p {
  font-size: 1rem;
  color: var(--clr-mid);
  line-height: 1.8;
}

/* --- Writing page ------------------------------------------ */
.writing-hero {
  min-height: 38vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  background: var(--clr-surface);
}
.writing-hero h1 { max-width: 700px; }
.writing-hero p  { max-width: 560px; margin-top: 20px; font-size: 1.05rem; }

.writing-body { padding: 56px 24px; }
.writing-placeholder {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.writing-card {
  padding: 28px 26px;
  border: 1px solid var(--clr-rule);
  border-radius: 6px;
  background: var(--clr-bg);
  transition: box-shadow var(--transition), transform var(--transition);
}
.writing-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}
.writing-card .card-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-teal);
  margin-bottom: 14px;
  display: block;
}
.writing-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--clr-dark);
  font-family: var(--font-serif);
}
.writing-card p {
  font-size: 0.88rem;
  color: var(--clr-muted);
  line-height: 1.65;
}
/* Substack live article cards */
.substack-card {
  display: block;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}
.substack-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.07);
  transform: translateY(-2px);
}
.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--clr-rule);
}
.card-date {
  font-size: 0.75rem;
  color: var(--clr-muted);
  letter-spacing: 0.03em;
}
.card-read {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-teal);
  letter-spacing: 0.03em;
}

/* Loading skeleton */
.skeleton-card { pointer-events: none; }
.skel {
  background: linear-gradient(90deg, var(--clr-rule) 25%, #e8ecee 50%, var(--clr-rule) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 3px;
}
.skel-label { height: 10px; width: 60px; margin-bottom: 16px; }
.skel-title { height: 20px; width: 85%; margin-bottom: 10px; border-radius: 3px; }
.skel-body  { height: 60px; width: 100%; }
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.writing-coming-soon {
  text-align: center;
  padding: 48px 0 24px;
}
.writing-coming-soon .coming-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--clr-dark);
  margin-bottom: 16px;
}
.writing-coming-soon p { max-width: 480px; margin: 0 auto; }

/* --- Contact page ------------------------------------------ */
.contact-hero {
  min-height: 34vh;
  display: flex;
  align-items: center;
  padding-top: 70px;
  background: var(--clr-dark);
  color: #fff;
}
.contact-hero h1 { color: #fff; }
.contact-hero .label { color: #6EC2D8; }
.contact-hero p { color: rgba(255,255,255,0.75); }
.contact-body { padding: 64px 24px 80px; }
.contact-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.contact-form-wrap h3 { margin-bottom: 10px; }
.contact-sub { margin-bottom: 36px; font-size: 0.95rem; color: var(--clr-muted); }

.form-group { margin-bottom: 28px; }
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-mid);
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  color: var(--clr-dark);
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-rule);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--clr-teal); }
.form-group textarea { min-height: 150px; resize: vertical; line-height: 1.6; }

.contact-info { padding-top: 10px; }
.contact-info h3 { margin-bottom: 36px; }
.contact-detail {
  margin-bottom: 36px;
}
.contact-detail .detail-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-teal);
  margin-bottom: 6px;
  display: block;
}
.contact-detail a {
  color: var(--clr-mid);
  font-size: 1rem;
  transition: color var(--transition);
}
.contact-detail a:hover { color: var(--clr-dark); }
.contact-philosophy {
  margin-top: 40px;
  padding: 32px;
  background: var(--clr-surface);
  border-radius: 6px;
}
.contact-philosophy p {
  font-size: 0.95rem;
  color: var(--clr-mid);
  line-height: 1.8;
  font-style: italic;
}

/* Form status messages */
.form-status {
  display: none;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-top: 16px;
}
.form-status.success { background: #E6F9F0; color: #1A7A4A; display: block; }
.form-status.error   { background: #FDE8E8; color: #8B1E1E; display: block; }

/* --- Footer ------------------------------------------------ */
.site-footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,0.5);
  padding: 40px 24px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
}
.footer-logo span { color: #6EC2D8; }
.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.footer-links a {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}
.footer-links a:hover { color: rgba(255,255,255,0.8); }
.footer-copy { font-size: 0.78rem; }
.footer-linkedin a {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
}
.footer-linkedin a:hover { color: #6EC2D8; }

/* --- Mobile nav -------------------------------------------- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 70px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--clr-rule);
    padding: 16px 24px 24px;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--clr-rule); }
  .nav-links a { display: block; padding: 14px 0; font-size: 1rem; }
  .nav-toggle { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 60px 24px;
  }
  .hero-image-wrap { justify-content: center; order: -1; }
  .hero-image-wrap img { max-width: 320px; }

  .section-philosophy .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .work-grid { grid-template-columns: 1fr; }
  .advisory-grid { grid-template-columns: 1fr; gap: 48px; }
  .writing-placeholder { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .footer-links { flex-wrap: wrap; gap: 16px; }
}

/* --- Animations -------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.65s ease forwards; }
.delay-1 { animation-delay: 0.1s; opacity: 0; }
.delay-2 { animation-delay: 0.22s; opacity: 0; }
.delay-3 { animation-delay: 0.36s; opacity: 0; }