/* ===========================================
   justingohn.com - Styles
   Inspired by bykahlil.com
   =========================================== */

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

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

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input, button, textarea, select {
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* ---------- CSS Variables ---------- */
:root {
  /* Light theme (default) */
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f5;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-border: #e0e0e0;
  --color-accent: #333333;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Layout */
  --nav-width: 200px;
  --content-max-width: 600px;

  /* Animation */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --animation-stagger: 0.05s;
}

/* Dark theme */
[data-theme="dark"] {
  --color-bg: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-text: #f0f0f0;
  --color-text-secondary: #a0a0a0;
  --color-border: #333333;
  --color-accent: #ffffff;
}

/* ---------- Base Styles ---------- */
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ---------- Layout ---------- */
.site-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Content area (everything except fixed nav) */
.content-area {
  flex: 1;
  margin-left: var(--nav-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navigation (Left Sidebar) */
.site-nav {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--nav-width);
  height: 100vh;
  padding: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--color-border);
  background-color: var(--color-bg);
  z-index: 100;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.nav-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-links a::before {
  content: "";
  width: 6px;
  height: 6px;
  background-color: transparent;
  flex-shrink: 0;
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a.active {
  color: var(--color-text);
}

.nav-links a.active::before {
  background-color: var(--color-text);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  align-self: flex-start;
}

.theme-toggle:hover {
  color: var(--color-text);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Main Content */
.site-main {
  flex: 1;
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.content-wrapper {
  max-width: var(--content-max-width);
  width: 100%;
}

/* Footer (Social Links) */
.site-footer {
  padding: var(--spacing-3xl);
  padding-top: var(--spacing-lg);
  max-width: var(--content-max-width);
  margin-top: auto;
}

.footer-divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.social-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  font-size: var(--font-size-sm);
  text-decoration: none;
}

.social-link:hover {
  color: var(--color-text);
}

/* ---------- Typography ---------- */
h1 {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-lg);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.lead {
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

/* ---------- Home Page Specific ---------- */
.home-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.home-name {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.home-linkedin {
  display: inline-flex;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  margin-top: calc(var(--spacing-sm) * -1);
}

.home-linkedin:hover {
  color: var(--color-text);
}

.home-linkedin svg {
  width: 20px;
  height: 20px;
}

.home-intro {
  margin-top: var(--spacing-xl);
}

.home-intro p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.home-intro a {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.home-intro a:hover {
  color: var(--color-text-secondary);
}

.home-bottom {
  margin-top: var(--spacing-2xl);
}

.home-signature {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: var(--spacing-md);
}

.home-headshot {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
}

/* ---------- Page Content ---------- */
.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.credentials {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.section {
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.property-list {
  columns: 2;
  column-gap: var(--spacing-xl);
}

.property-list li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
}

/* Speaking Events */
.events-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.event-item {
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.event-item:last-child {
  border-bottom: none;
}

.event-name {
  font-weight: 500;
  color: var(--color-text);
}

.event-name.keynote {
  color: var(--color-accent);
}

.event-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* Writing Page */
.substack-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text);
  transition: all var(--transition-fast);
  margin-top: var(--spacing-md);
}

.substack-link:hover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-text-secondary);
}

/* Builds Page */
.build-item {
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: var(--spacing-lg);
  transition: border-color var(--transition-fast);
}

.build-item:hover {
  border-color: var(--color-text-secondary);
}

.build-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.build-meta {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-text-secondary);
}

.build-item p {
  margin-bottom: var(--spacing-md);
}

.build-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.build-link:hover {
  color: var(--color-text-secondary);
}

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Staggered delays */
.fade-up:nth-child(1) { animation-delay: calc(var(--animation-stagger) * 1); }
.fade-up:nth-child(2) { animation-delay: calc(var(--animation-stagger) * 2); }
.fade-up:nth-child(3) { animation-delay: calc(var(--animation-stagger) * 3); }
.fade-up:nth-child(4) { animation-delay: calc(var(--animation-stagger) * 4); }
.fade-up:nth-child(5) { animation-delay: calc(var(--animation-stagger) * 5); }
.fade-up:nth-child(6) { animation-delay: calc(var(--animation-stagger) * 6); }
.fade-up:nth-child(7) { animation-delay: calc(var(--animation-stagger) * 7); }
.fade-up:nth-child(8) { animation-delay: calc(var(--animation-stagger) * 8); }
.fade-up:nth-child(9) { animation-delay: calc(var(--animation-stagger) * 9); }
.fade-up:nth-child(10) { animation-delay: calc(var(--animation-stagger) * 10); }
.fade-up:nth-child(11) { animation-delay: calc(var(--animation-stagger) * 11); }
.fade-up:nth-child(12) { animation-delay: calc(var(--animation-stagger) * 12); }
.fade-up:nth-child(13) { animation-delay: calc(var(--animation-stagger) * 13); }
.fade-up:nth-child(14) { animation-delay: calc(var(--animation-stagger) * 14); }
.fade-up:nth-child(15) { animation-delay: calc(var(--animation-stagger) * 15); }
.fade-up:nth-child(16) { animation-delay: calc(var(--animation-stagger) * 16); }
.fade-up:nth-child(17) { animation-delay: calc(var(--animation-stagger) * 17); }
.fade-up:nth-child(18) { animation-delay: calc(var(--animation-stagger) * 18); }
.fade-up:nth-child(19) { animation-delay: calc(var(--animation-stagger) * 19); }
.fade-up:nth-child(20) { animation-delay: calc(var(--animation-stagger) * 20); }
.fade-up:nth-child(21) { animation-delay: calc(var(--animation-stagger) * 21); }
.fade-up:nth-child(22) { animation-delay: calc(var(--animation-stagger) * 22); }
.fade-up:nth-child(23) { animation-delay: calc(var(--animation-stagger) * 23); }
.fade-up:nth-child(24) { animation-delay: calc(var(--animation-stagger) * 24); }
.fade-up:nth-child(25) { animation-delay: calc(var(--animation-stagger) * 25); }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  :root {
    --nav-width: 100%;
  }

  .site-wrapper {
    flex-direction: column;
  }

  .site-nav {
    position: relative;
    width: 100%;
    height: auto;
    padding: var(--spacing-lg);
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-links {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  .content-area {
    margin-left: 0;
    min-height: auto;
  }

  .site-main {
    padding: var(--spacing-xl);
    min-height: auto;
    justify-content: flex-start;
  }

  .site-footer {
    max-width: 100%;
    padding: var(--spacing-xl);
  }

  .footer-links {
    justify-content: center;
  }

  .property-list {
    columns: 1;
  }

  h1, .home-name {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 480px) {
  .nav-links {
    gap: var(--spacing-md);
  }

  .nav-links a {
    font-size: var(--font-size-xs);
  }
}