/* Base Variables & Reset */
:root {
  --bg-color: #050505;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent-red: #ff3333;
  --accent-dark: #1a1a1a;
  
  --font-serif: 'Playfair Display', serif;
  --font-sans: 'Inter', sans-serif;
  --font-pixel: 'VT323', monospace;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  --transition-normal: 0.3s ease;
  --navbar-bg: rgba(5, 5, 5, 0.8);
  --card-gradient-start: rgba(26, 26, 26, 0.8);
  --card-gradient-end: rgba(5, 5, 5, 0);
  --service-bg: rgba(26, 26, 26, 0.3);
}

body.light-mode {
  --bg-color: #f5f5f5;
  --text-primary: #1a1a1a;
  --text-secondary: #5a5a5a;
  --accent-dark: #e0e0e0;
  --navbar-bg: rgba(245, 245, 245, 0.8);
  --card-gradient-start: rgba(230, 230, 230, 0.8);
  --card-gradient-end: rgba(255, 255, 255, 0);
  --service-bg: rgba(230, 230, 230, 0.5);
}

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

html {
  scroll-behavior: smooth;
  font-size: 14px; /* Small base font size to mimic IDE code */
}

body {
  background-color: var(--bg-color);
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px; /* Size of the grid squares */
  color: var(--text-primary);
  font-family: var(--font-sans); /* Changed to sans-serif for a cleaner, minimalist look */
  line-height: 1.6; /* Tighter line height */
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

body.light-mode {
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
}

.pixel-font {
  font-family: var(--font-pixel);
  color: var(--accent-red);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2rem; /* Reduced from 3rem */
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: inline-block;
}

/* Utilities */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-md) 0;
  z-index: 100;
  transition: transform 0.4s ease, opacity 0.4s ease;
  pointer-events: none; /* Allows clicking through the empty space */
}

.navbar.hidden-onload {
  transform: translateY(-100%);
  opacity: 0;
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: auto; /* Restores clicking on logo and button */
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 900;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.lang-selector {
  display: flex;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-normal);
  font-family: inherit;
}

.lang-btn:hover {
  color: var(--text-primary);
}

.lang-btn.active {
  color: var(--text-primary);
  font-weight: bold;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
}

.vertical-nav {
  position: fixed;
  left: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.vertical-nav.hidden-onload {
  opacity: 0;
  transform: translateY(-50%) translateX(-20px);
}

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

@media (max-width: 1200px) {
  .vertical-nav {
    left: var(--spacing-sm);
  }
}

@media (max-width: 900px) {
  .vertical-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    top: auto;
    transform: none;
    width: 100%;
    background: var(--bg-color); /* Need solid background on mobile so it doesn't overlap scrolling text */
    padding: var(--spacing-sm);
    border-top: 1px solid var(--accent-dark);
    transition: background-color var(--transition-normal), border-color var(--transition-normal), opacity 0.4s ease, transform 0.4s ease;
  }
  
  .vertical-nav.hidden-onload {
    opacity: 0;
    transform: translateY(20px);
  }

  .vertical-nav .nav-links {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm) var(--spacing-md);
  }

  .nav-links a {
    padding-left: 0;
  }
  
  .nav-links a::before {
    display: none;
  }
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding-left: 12px;
  transition: all var(--transition-normal);
}

.nav-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 0;
  background: transparent;
  transition: height 0.3s ease, background-color 0.3s ease;
}

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

.nav-links a:hover::before {
  height: 50%;
  background: var(--text-secondary);
}

.nav-links a.active {
  color: var(--text-primary);
  font-weight: 600;
}

.nav-links a.active::before {
  height: 100%;
  background: var(--text-primary);
}

.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--accent-dark);
  color: var(--text-primary);
  padding: 8px 16px;
  cursor: pointer;
  border-radius: 20px;
  transition: all var(--transition-normal);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
}

.theme-toggle-btn:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* Hero Section - The 30/70 Rule */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 0 var(--spacing-md);
  background-image: none;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

body.light-mode .hero {
  background-image: url('assets/HeroBack.svg');
}

.hero-content {
  /* 30% of the screen width for content to maintain empty space */
  width: 100%;
  max-width: 680px; /* Narrower container for larger lateral space */
  text-align: left; /* Align left to match the article format */
  display: flex;
  flex-direction: column;
  align-items: flex-start; /* Align left */
  gap: var(--spacing-md);
}

@media (min-width: 1024px) {
  .hero-content {
    /* Enforcing the narrow column strictly on larger screens */
    max-width: 680px; 
  }
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem); /* Reduced maximum size */
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  word-spacing: 4px;
}

.hero-intro {
  margin-top: var(--spacing-md);
  color: var(--text-primary);
  font-size: 1.1rem; /* Smaller font */
  max-width: 100%;
  line-height: 1.6; /* Tighter line height */
  text-align: left;
}

.hero-action-btn {
  display: inline-block;
  margin-top: var(--spacing-md);
  padding: 10px 24px;
  border: 1px solid var(--accent-dark);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 1px;
  transition: all var(--transition-normal);
}

.hero-action-btn:hover {
  border-color: var(--text-primary);
  background: var(--text-primary);
  color: var(--bg-color);
}



/* Sections Structure */
.content-section {
  padding: var(--spacing-xl) var(--spacing-md);
  min-height: 50vh;
}

.section-container {
  max-width: 680px; /* Match the narrow hero container */
  margin: 0 auto;
  position: relative; /* To contain doodles added to sections */
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Grid Layouts */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr; /* Single column to match article style */
  }
}

.about-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}


/* Projects */
.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--accent-dark);
  color: var(--text-secondary);
  padding: 8px 16px;
  cursor: pointer;
  font-family: var(--font-pixel);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent-red);
  color: var(--text-primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  border-radius: 0;
  border: 1px solid var(--accent-dark);
  background: transparent;
  transition: border-color var(--transition-normal), background-color var(--transition-normal);
  cursor: pointer;
  position: relative;
  text-decoration: none;
  overflow: hidden;
}

.project-card:hover {
  border-color: var(--accent-red);
  background: rgba(255, 255, 255, 0.02);
}

body.light-mode .project-card:hover {
  background: rgba(0, 0, 0, 0.02);
}

.project-thumbnail {
  width: 100%;
  border-radius: 0;
  overflow: hidden;
  flex-shrink: 0;
}

.project-thumbnail img {
  width: 100%;
  height: 180px;
  display: block;
  object-fit: contain;
  object-position: center;
  background: #ffffff;
  border: none;
  border-bottom: 1px solid var(--accent-dark);
  border-radius: 0;
}

.project-content {
  flex: 1;
  padding: var(--spacing-md);
}

.project-title {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  transition: color var(--transition-normal);
}

.project-card:hover .project-title {
  color: var(--accent-red);
}

.project-arrow {
  font-size: 1rem;
  transition: transform var(--transition-normal);
}

.project-card:hover .project-arrow {
  transform: translateX(4px) translateY(-4px);
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-tag {
  font-size: 0.75rem;
  color: var(--accent-red);
  background: rgba(255, 51, 51, 0.1);
  padding: 3px 8px;
  border-radius: 0;
  font-weight: 500;
  font-family: var(--font-sans);
}

.archive-link-container {
  margin-top: var(--spacing-lg);
  padding-left: var(--spacing-md);
}

.archive-link {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1rem;
  transition: color var(--transition-normal);
}

.archive-link:hover {
  color: var(--accent-red);
}

.project-footer {
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--accent-dark);
}

@media (max-width: 680px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* Trajectory / Timelines */
.trajectory-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 900px) {
  .trajectory-grid {
    grid-template-columns: 1fr; /* Keep it single column to maintain the narrow reading width */
    gap: var(--spacing-lg);
  }
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.timeline-item {
  position: relative;
  padding-left: var(--spacing-md);
  border-left: 1px solid var(--accent-dark);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--accent-red);
  border-radius: 50%;
}

.timeline-date {
  font-family: var(--font-pixel);
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.3rem;
  margin-bottom: 2px;
}

.timeline-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-xs);
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.timeline-highlights {
  margin-top: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 1px solid var(--accent-dark);
  margin-left: 8px;
}

.timeline-highlight-item {
  position: relative;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border-radius: 0;
}

.timeline-highlight-item::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-dark);
}

.highlight-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2px;
}

.highlight-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-primary);
}

.highlight-date {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--accent-red);
  white-space: nowrap;
  margin-left: var(--spacing-sm);
}

.highlight-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
}

.awards-list, .events-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.award-item {
  position: relative;
  padding: var(--spacing-sm);
  background: var(--accent-dark);
  border-radius: 4px;
}

.award-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.award-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.events-container {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--accent-dark);
  margin-top: var(--spacing-md);
}

.event-item {
  position: relative;
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-size: 1.05rem;
  padding: var(--spacing-xs) 0;
  border-top: 1px solid var(--accent-dark);
  transition: color var(--transition-normal), opacity var(--transition-normal);
}

.event-item:hover {
  opacity: 0.7;
}

/* Contact */
.contact-card {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.contact-text {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-serif);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 0; /* Remove gap to make borders touch if desired, or keep small gap */
  flex-wrap: wrap;
}

.contact-link {
  color: var(--accent-red);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 10px 20px;
  border: 1px solid var(--accent-red);
  margin-left: -1px; /* Collapses adjacent borders */
  transition: all var(--transition-normal);
}

.contact-link:hover {
  background-color: rgba(255, 51, 51, 0.1);
}

/* Doodle Utility for background images */
.doodle {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  opacity: 0.8; /* You can override this directly via inline styles */
  transition: opacity var(--transition-normal);
}

body.light-mode .doodle {
  /* Optional: Invert or adjust doodle opacity in light mode if they are dark SVGs */
  opacity: 0.6;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: var(--spacing-lg);
  border-top: 1px solid var(--accent-dark);
}



/* Project Modal Overlay */
.project-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.project-modal.active {
  display: flex;
}

.project-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
}

body.light-mode .project-modal-backdrop {
  background: rgba(255, 255, 255, 0.8);
}

.project-modal-content {
  position: relative;
  width: 90%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--bg-color);
  border: 1px solid var(--accent-dark);
  border-radius: 0;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  overflow: hidden;
}

.project-modal-header {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--accent-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-color);
}

.project-modal-title-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.project-modal-id {
  color: var(--accent-red);
  font-size: 1.2rem;
}

#modal-project-title {
  font-size: 1.5rem;
  margin: 0;
}

.project-modal-body {
  padding: var(--spacing-md);
  overflow-y: auto;
  flex: 1;
}

.project-modal-image-container {
  width: 100%;
  height: 320px;
  background: #ffffff;
  border: 1px solid var(--accent-dark);
  border-radius: 0;
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.project-modal-image-container img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}

.project-modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--spacing-lg);
}

.project-modal-desc {
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.project-modal-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--accent-dark);
}

.modal-saiba-mais {
  display: inline-block;
  color: var(--accent-red);
  text-decoration: none;
  font-family: var(--font-pixel);
  font-size: 1rem;
  transition: opacity var(--transition-normal);
}

.modal-saiba-mais:hover {
  opacity: 0.7;
}

/* Markdown rendered content */
.project-modal-desc .md-h1 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin: var(--spacing-md) 0 var(--spacing-xs);
  color: var(--text-primary);
}

.project-modal-desc .md-h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin: var(--spacing-md) 0 var(--spacing-xs);
  color: var(--text-primary);
}

.project-modal-desc .md-h3 {
  font-family: var(--font-pixel);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: var(--spacing-sm) 0 4px;
  color: var(--accent-red);
}

.project-modal-desc .md-p {
  margin: 0 0 var(--spacing-sm);
  line-height: 1.7;
  color: var(--text-secondary);
}

.project-modal-desc .md-ul {
  margin: var(--spacing-xs) 0 var(--spacing-sm) var(--spacing-md);
  padding: 0;
  list-style: none;
}

.project-modal-desc .md-ul li {
  position: relative;
  padding-left: var(--spacing-md);
  margin-bottom: 6px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-modal-desc .md-ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent-red);
}

.project-modal-desc .md-blockquote {
  border-left: 3px solid var(--accent-red);
  margin: var(--spacing-sm) 0;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(255,51,51,0.04);
}

.project-modal-desc .md-blockquote p {
  margin: 0;
  color: var(--text-secondary);
  font-style: italic;
}

.project-modal-desc .md-hr {
  border: none;
  border-top: 1px solid var(--accent-dark);
  margin: var(--spacing-md) 0;
}

.project-modal-desc .md-link {
  color: var(--accent-red);
  text-decoration: underline;
}

.project-modal-desc code {
  font-family: monospace;
  font-size: 0.9em;
  background: rgba(255,51,51,0.08);
  padding: 1px 6px;
  border-radius: 2px;
  color: var(--accent-red);
}