/* ===== RESET & BASE ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0a0a0a;
  --bg-card: #0d1117;
  --bg-card-hover: #111a22;
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-muted: #0a6e2e;
  --green-glow: rgba(0, 255, 65, 0.15);
  --green-glow-strong: rgba(0, 255, 65, 0.3);
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --border: #1a2a1a;
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--green-muted) var(--bg);
}

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

a {
  color: var(--green);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}

a:hover {
  text-shadow: 0 0 8px var(--green-glow-strong);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent {
  color: var(--green);
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 12px 32px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary {
  background: var(--green);
  color: var(--bg);
  border: 2px solid var(--green);
}

.btn-primary:hover {
  background: transparent;
  color: var(--green);
  box-shadow: 0 0 20px var(--green-glow), inset 0 0 20px var(--green-glow);
  text-shadow: 0 0 8px var(--green);
}

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text);
}

.nav-logo:hover {
  color: var(--green);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0.5px;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  transition: width 0.3s;
}

.nav-links a:hover {
  color: var(--green);
  text-shadow: none;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#matrix-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.35;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
}

.hero-prefix {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--green-dim);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInUp 0.6s 0.3s forwards;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 7vw, 5rem);
  color: var(--green);
  text-shadow: 0 0 30px var(--green-glow), 0 0 60px var(--green-glow);
  letter-spacing: 2px;
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInUp 0.6s 0.6s forwards;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-muted);
  display: inline;
}

.cursor {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--green);
  animation: blink 1s step-end infinite;
  opacity: 0;
  animation: fadeIn 0.1s 1.2s forwards, blink 1s 1.2s step-end infinite;
}

.hero .btn {
  margin-top: 40px;
  opacity: 0;
  animation: fadeInUp 0.6s 1.4s forwards;
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: fadeIn 1s 2s forwards;
}

.scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.scroll-arrow {
  width: 16px;
  height: 16px;
  border-right: 2px solid var(--green-dim);
  border-bottom: 2px solid var(--green-dim);
  transform: rotate(45deg);
  animation: scrollBounce 2s infinite;
}

/* ===== SECTIONS ===== */
.section {
  padding: 100px 0;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--text);
  margin-bottom: 48px;
  text-align: center;
}

/* ===== TERMINAL CARD ===== */
.terminal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.terminal-card:hover {
  border-color: var(--green-muted);
  box-shadow: 0 0 30px var(--green-glow);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.terminal-body {
  padding: 24px;
  font-size: 0.95rem;
  line-height: 1.8;
}

.terminal-line {
  margin-bottom: 8px;
}

.prompt {
  color: var(--green);
  font-family: var(--font-mono);
  margin-right: 8px;
}

/* ===== SKILLS GRID ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 24px;
  transition: all 0.3s;
}

.skill-card:hover {
  border-color: var(--green-muted);
  box-shadow: 0 0 30px var(--green-glow);
  transform: translateY(-4px);
}

.skill-icon {
  width: 48px;
  height: 48px;
  color: var(--green);
  margin-bottom: 20px;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 12px;
}

.skill-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

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

.skill-tags span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green-dim);
  background: var(--green-glow);
  padding: 4px 10px;
  border-radius: 3px;
  border: 1px solid rgba(0, 255, 65, 0.1);
}

/* ===== PORTFOLIO GRID ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s;
}

.project-card:hover {
  border-color: var(--green-muted);
  box-shadow: 0 0 30px var(--green-glow);
  transform: translateY(-4px);
}

.project-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.project-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #0d1117 0%, #0a1a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--green-muted);
  border-bottom: 1px solid var(--border);
}

.project-info {
  padding: 24px;
}

.project-info h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 10px;
}

.project-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green-dim);
  background: var(--green-glow);
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid rgba(0, 255, 65, 0.1);
}

.project-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-link:hover {
  text-shadow: 0 0 8px var(--green-glow-strong);
}

/* ===== CONTACT ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 12px 16px;
  background: rgba(0, 255, 65, 0.03);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--green-muted);
  box-shadow: 0 0 15px var(--green-glow);
}

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

.contact-info {
  padding-top: 16px;
}

.contact-info h3 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 32px;
  line-height: 1.6;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: all 0.3s;
}

.contact-link:hover {
  border-color: var(--green-muted);
  color: var(--green);
  box-shadow: 0 0 15px var(--green-glow);
  text-shadow: none;
}

.contact-link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text);
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-nav a:hover {
  color: var(--green);
}

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

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes scrollBounce {
  0%, 20%, 50%, 80%, 100% { transform: rotate(45deg) translateY(0); }
  40% { transform: rotate(45deg) translateY(6px); }
  60% { transform: rotate(45deg) translateY(3px); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    border-bottom: 1px solid transparent;
  }

  .nav-links.open {
    max-height: 300px;
    padding: 16px 0;
    border-bottom-color: var(--border);
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 12px 0;
  }

  .section {
    padding: 70px 0;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .terminal-body {
    padding: 16px;
    font-size: 0.88rem;
  }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--green-muted);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--green-dim);
}

/* ===== SELECTION ===== */
::selection {
  background: var(--green-glow-strong);
  color: var(--green);
}