/* Global Design System - Steve Fick Personal Site */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji';
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji';
  
  --bg-color: #faf9f7;
  --surface-color: #ffffff;
  --text-main: #33373d;
  --text-muted: #646a73;
  --text-light: #8e95a0;
  --primary: #2b5c8f;
  --primary-hover: #1e4267;
  --accent: #d96b43;
  --border-color: #e5e3df;
  --nav-bg: #1f242d;
  --nav-text: #e0e4eb;
  --nav-hover: #ffffff;
  
  --max-width: 960px;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --transition: all 0.2s ease-in-out;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent);
}

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

/* Layout */
.site-header {
  background-color: var(--nav-bg);
  position: relative;
  width: 100%;
}

.banner-container {
  position: relative;
  width: 100%;
  max-height: 320px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.85);
}

.banner-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #ffffff;
  width: 90%;
  max-width: 800px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}

.banner-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.banner-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  opacity: 0.95;
}

/* Navigation */
.nav-container {
  background-color: var(--nav-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 1rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-links a {
  display: block;
  padding: 0.85rem 1.25rem;
  color: var(--nav-text);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  border-bottom: 2px solid transparent;
}

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

/* Main Container */
.container {
  max-width: var(--max-width);
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  flex: 1;
  width: 100%;
}

/* Greeter / Bio Card (Home Page) */
.bio-card {
  background: var(--surface-color);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin-bottom: 2rem;
}

.bio-text {
  flex: 1;
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--text-main);
}

.greeting-title {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.bio-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

/* Social & Research Links */
.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.social-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.social-badge:hover {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-1px);
}

.social-badge svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* Projects Page */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.project-card {
  background: var(--surface-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  transition: var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #d0ceca;
}

.project-img {
  width: 180px;
  height: 120px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 2px);
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.project-content {
  flex: 1;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* Publications Page */
.pubs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pub-item {
  background: var(--surface-color);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.pub-item:hover {
  border-color: #cfcbc5;
  box-shadow: var(--shadow-md);
}

.pub-link {
  color: var(--text-main);
  font-size: 0.98rem;
  line-height: 1.6;
  display: block;
}

.pub-link:hover {
  color: var(--primary);
}

.pdf-tag {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.5rem;
  background-color: #eef3f9;
  color: var(--primary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* CV Page */
.cv-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--primary);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.btn-download:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.cv-frame-wrapper {
  width: 100%;
  height: 85vh;
  min-height: 600px;
  background: var(--surface-color);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.cv-frame {
  width: 100%;
  height: 100%;
  border: none;
}

/* Photography Page */
body.photo-page {
  background-color: #121418;
  color: #e0e4eb;
}

body.photo-page .nav-container {
  border-bottom: 1px solid #2a2e37;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.photo-card {
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  background-color: #1c2026;
  border: 1px solid #2a2e37;
  cursor: pointer;
}

.photo-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.photo-card:hover img {
  transform: scale(1.04);
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1.5rem;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-content {
  position: relative;
  max-width: 95vw;
  max-height: 95vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
}

.lightbox-close {
  position: absolute;
  top: -45px;
  right: 0;
  color: #ffffff;
  font-size: 2.2rem;
  font-weight: 300;
  cursor: pointer;
  line-height: 1;
  background: none;
  border: none;
  outline: none;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.lightbox-close:hover {
  opacity: 1;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

body.photo-page .site-footer {
  border-top-color: #2a2e37;
  color: #7b8390;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
  .banner-container, .banner-img {
    height: 200px;
  }

  .banner-title {
    font-size: 1.8rem;
  }

  .banner-subtitle {
    font-size: 0.95rem;
  }

  .bio-card {
    flex-direction: column-reverse;
    text-align: center;
    padding: 1.75rem;
    gap: 1.5rem;
  }

  .bio-avatar {
    width: 130px;
    height: 130px;
  }

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

  .project-card {
    flex-direction: column;
    align-items: center;
    text-align: left;
  }

  .project-img {
    width: 100%;
    height: 180px;
  }

  .nav-links a {
    padding: 0.65rem 0.85rem;
    font-size: 0.88rem;
  }

  .cv-frame-wrapper {
    height: 65vh;
  }
}