/* Custom properties for a cohesive digital brutalism/tech-noir theme */
:root {
  --bg-color: #0b0d11;
  --bg-card: #12161c;
  --bg-card-hover: #171d26;
  --text-primary: #f0f4f8;
  --text-secondary: #8a9ca8;
  --accent: #ff6c00; /* Deep glowing orange */
  --accent-rgb: 255, 108, 0;
  --accent-secondary: #00e5ff; /* Electric cyan */
  --accent-secondary-rgb: 0, 229, 255;
  --border-color: #1e2630;
  --border-focus: #ff6c00;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --grid-size: 40px;
}

/* Base reset and layout */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background grid overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(30, 38, 48, 0.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 38, 48, 0.15) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none;
  z-index: -1;
}

/* Subtle ambient glows */
.glow-spot {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.05) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
  z-index: -1;
}

.glow-spot-2 {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-secondary-rgb), 0.03) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
header {
  position: sticky;
  top: 0;
  background-color: rgba(11, 13, 17, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  transition: padding 0.3s;
}

header.scrolled {
  padding: 0.5rem 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.25s ease;
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

/* Menu Toggle for Mobile */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.5rem;
}

/* Hero Section */
.hero {
  padding: 8rem 0 6rem;
  position: relative;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8s;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  color: var(--accent);
  padding: 0.35rem 1rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-title span {
  color: var(--accent);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 2rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-sans);
}

.btn-primary {
  background-color: var(--accent);
  color: #000;
  border: 1px solid var(--accent);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(var(--accent-rgb), 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.05);
}

/* Hero Tech Art Component */
.hero-art {
  position: relative;
  width: 100%;
  height: 380px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-grid {
  position: absolute;
  width: 300px;
  height: 300px;
  border: 2px solid var(--border-color);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  animation: floatArt 8s ease-in-out infinite alternate;
}

.tech-grid::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  width: 20px;
  height: 20px;
  border-top: 3px solid var(--accent);
  border-left: 3px solid var(--accent);
}

.tech-grid::after {
  content: '';
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 20px;
  height: 20px;
  border-bottom: 3px solid var(--accent);
  border-right: 3px solid var(--accent);
}

.tech-cell {
  border: 1px solid rgba(30, 38, 48, 0.4);
  position: relative;
}

.tech-cell.active::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 15%;
  width: 70%;
  height: 70%;
  background: var(--accent);
  opacity: 0.8;
  animation: pulseCell 2s infinite ease-in-out;
}

.tech-cell.active-cyan::before {
  content: '';
  position: absolute;
  top: 15%;
  left: 15%;
  width: 70%;
  height: 70%;
  background: var(--accent-secondary);
  opacity: 0.8;
  animation: pulseCell 2.5s infinite ease-in-out;
}

@keyframes floatArt {
  0% { transform: translateY(0) rotate(0deg); }
  100% { transform: translateY(-15px) rotate(5deg); }
}

@keyframes pulseCell {
  0%, 100% { transform: scale(0.8); opacity: 0.4; }
  50% { transform: scale(1.1); opacity: 0.9; }
}

/* Section Common Styling */
section {
  padding: 6rem 0;
  border-top: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 4rem;
}

.section-meta {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  line-height: 1.2;
}

/* Projects Section (Asymmetric) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2.5rem;
}

.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
  background-color: var(--bg-card-hover);
}

.project-card.featured {
  grid-column: span 8;
  border-left: 4px solid var(--accent);
}

.project-card.standard {
  grid-column: span 4;
}

.project-card.full-width {
  grid-column: span 12;
  border-left: 4px solid var(--accent-secondary);
}

.project-tech {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.project-tech span {
  background-color: rgba(255, 255, 255, 0.04);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.project-title {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
}

.project-card.full-width .project-link {
  color: var(--accent-secondary);
}

.project-link svg {
  transition: transform 0.25s ease;
}

.project-card:hover .project-link svg {
  transform: translateX(4px);
}

/* About Section */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.about-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.about-content pstrong {
  color: var(--text-primary);
  font-weight: 600;
}

.skills-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.skills-category h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.skills-list {
  list-style: none;
}

.skills-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.skills-list li::before {
  content: '→';
  color: var(--accent);
}

/* Guestbook Section (Dynamic Serverless + Database) */
.guestbook-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
}

.guestbook-form-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem;
  height: fit-content;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  border-radius: 6px;
  outline: none;
  transition: all 0.25s;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.15);
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

/* Guestbook List */
.guestbook-messages {
  max-height: 500px;
  overflow-y: auto;
  padding-right: 1rem;
}

/* Custom scrollbar for messages list */
.guestbook-messages::-webkit-scrollbar {
  width: 6px;
}

.guestbook-messages::-webkit-scrollbar-track {
  background: var(--bg-color);
}

.guestbook-messages::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.guestbook-messages::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

.message-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  transition: transform 0.25s, border-color 0.25s;
  animation: fadeIn 0.4s ease-out both;
}

.message-card:hover {
  border-color: rgba(255, 255, 255, 0.08);
}

.message-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.message-author {
  color: var(--accent);
  font-weight: 700;
}

.message-date {
  color: var(--text-secondary);
}

.message-text {
  font-size: 0.95rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

/* States and Notifications */
.form-notification {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-top: 1rem;
  font-size: 0.85rem;
  display: none;
}

.form-notification.success {
  display: block;
  background-color: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-notification.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  border: 1px dashed var(--border-color);
  border-radius: 8px;
}

.empty-state svg {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Contact Section (Tactile Form + Netlify Forms) */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 480px;
}

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

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all 0.25s;
}

.social-icon:hover {
  color: var(--text-primary);
  border-color: var(--accent-secondary);
  box-shadow: 0 0 15px rgba(var(--accent-secondary-rgb), 0.2);
  transform: translateY(-2px);
}

.contact-form-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  background-color: #08090d;
}

.footer-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-meta span {
  color: var(--accent);
}

/* Keyframes */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Media Queries */
@media (max-width: 992px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-art {
    height: 300px;
    order: -1;
  }

  .about-layout, .guestbook-layout, .contact-layout {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .project-card.featured, .project-card.standard {
    grid-column: span 12;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 3rem;
  }

  .nav-links {
    display: none; /* simple toggle would hide links by default */
  }

  .menu-toggle {
    display: block;
  }

  .container {
    padding: 0 1.5rem;
  }

  .footer-wrapper {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}