/* Vora — Sovereign Personal AI */
/* Dark theme, Bitcoin orange accents, clean typography */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --text: #e0e0e0;
  --text-muted: #888888;
  --text-dim: #555555;
  --orange: #F7931A;
  --orange-dim: #c47515;
  --white: #ffffff;
  --max-width: 900px;
  --max-width-wide: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Helvetica, Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* --- Navigation --- */

nav {
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

nav .site-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

nav .site-name:hover {
  color: var(--orange);
}

nav .nav-links {
  display: flex;
  gap: 1.5rem;
}

nav .nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}

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

/* --- Layout --- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.container-wide {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Home Page --- */

.home-hero {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 2rem;
}

.home-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.home-hero .tagline {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.home-hero .cta {
  display: inline-block;
  color: var(--orange);
  border: 1px solid var(--orange);
  padding: 0.7rem 2rem;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  transition: all 0.2s;
}

.home-hero .cta:hover {
  background: var(--orange);
  color: var(--bg);
}

/* --- Blog Index --- */

.blog-header {
  padding: 4rem 0 2rem;
}

.blog-header h1 {
  font-size: 2rem;
  color: var(--white);
  font-weight: 700;
}

.post-list {
  list-style: none;
  padding: 2rem 0;
}

.post-list li {
  padding: 1.5rem 0;
  border-bottom: 1px solid #1a1a1a;
}

.post-list li:last-child {
  border-bottom: none;
}

.post-list a {
  text-decoration: none;
}

.post-list .post-title {
  font-size: 1.2rem;
  color: var(--white);
  font-weight: 600;
  margin: 0;
  display: block;
  margin-bottom: 0.3rem;
}

.post-list .post-title:hover {
  color: var(--orange);
}

.post-list .post-meta {
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}

.post-list .post-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* --- Presentation Page --- */

.presentation-header {
  text-align: center;
  padding: 3rem 2rem 3rem;
  max-width: var(--max-width-wide);
  margin: 0 auto;
}

.presentation-header .hero-img {
  width: 100%;
  max-width: var(--max-width);
  border-radius: 4px;
  margin-bottom: 2.5rem;
}

.presentation-header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.presentation-header .subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.presentation-header .meta {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 1rem;
}

.presentation-intro {
  max-width: var(--max-width);
  margin: 0 auto 3rem;
  padding: 0 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-style: italic;
  text-align: center;
}

/* Slide sections */

.slide-section {
  margin-bottom: 1rem;
}

.slide-img {
  width: 100%;
  max-width: var(--max-width-wide);
  display: block;
  margin: 0 auto;
}

.slide-text {
  max-width: var(--max-width);
  margin: 2rem auto 4rem;
  padding: 0 2rem;
}

.slide-text .speaker {
  display: block;
  font-size: 0.75rem;
  color: var(--orange);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  font-weight: 600;
}

.slide-text p {
  margin-bottom: 1rem;
  color: var(--text);
}

.slide-text p:last-child {
  margin-bottom: 0;
}

.slide-text strong {
  color: var(--white);
  font-weight: 600;
}

.slide-text em {
  color: var(--orange);
  font-style: normal;
}

/* Video embed */

.video-section {
  max-width: var(--max-width);
  margin: 0 auto 4rem;
  padding: 0 2rem;
  text-align: center;
}

.video-section h2 {
  font-size: 1.5rem;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.video-section .video-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  overflow: hidden;
  border-radius: 4px;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Divider between major sections */

.section-break {
  width: 60px;
  height: 2px;
  background: var(--orange);
  margin: 4rem auto;
  opacity: 0.4;
}

/* --- Article/Blog Post Typography --- */

article p {
  margin-bottom: 1.4rem;
}

article p:last-child {
  margin-bottom: 0;
}

article a {
  color: var(--orange);
  text-decoration: none;
}

article a:hover {
  text-decoration: underline;
}

article .section-break {
  margin: 2.5rem auto;
}

/* --- Footer --- */

footer {
  border-top: 1px solid #1a1a1a;
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 4rem;
}

footer p {
  color: var(--text-dim);
  font-size: 0.8rem;
}

footer a {
  color: var(--text-muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--orange);
}

/* --- Responsive --- */

@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  nav {
    padding: 1rem 1.5rem;
  }

  .home-hero h1 {
    font-size: 2rem;
  }

  .presentation-header {
    padding: 3rem 1.5rem 2rem;
  }

  .presentation-header h1 {
    font-size: 1.8rem;
  }

  .slide-text {
    padding: 0 1.5rem;
    margin: 1.5rem auto 3rem;
  }

  .container,
  .container-wide {
    padding: 0 1.5rem;
  }
}

@media (max-width: 480px) {
  .presentation-header h1 {
    font-size: 1.5rem;
  }

  nav .nav-links {
    gap: 1rem;
  }
}