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

:root {
  --bg: #0a0a0b;
  --bg-alt: #111113;
  --bg-card: #16161a;
  --bg-card-hover: #1c1c21;
  --border: #2a2a30;
  --text: #e4e4e7;
  --text-secondary: #8b8b94;
  --text-muted: #5a5a63;
  --accent: #22d3ee;
  --accent-dim: rgba(34, 211, 238, 0.1);
  --accent-glow: rgba(34, 211, 238, 0.15);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--border);
}

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

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.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: var(--transition);
  border-radius: 1px;
}

.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);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  gap: 16px;
  border-top: 1px solid var(--border);
}

.nav-mobile a {
  font-size: 1rem;
  color: var(--text-secondary);
  padding: 8px 0;
}

.nav-mobile.open {
  display: flex;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: glow-pulse 8s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(34, 211, 238, 0.2);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.mobile-br {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #06b6d4;
  border-color: #06b6d4;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

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

.btn-ghost:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

/* Terminal */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 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 {
  margin-left: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 20px;
  min-height: 200px;
}

.terminal-line {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
}

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

.cmd {
  color: var(--text);
}

.cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.terminal-output {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.terminal-output .out-success {
  color: #4ade80;
}

.terminal-output .out-info {
  color: var(--text-muted);
}

.terminal-output .out-data {
  color: var(--accent);
}

@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual {
    order: -1;
  }
  .mobile-br {
    display: block;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }
  .btn {
    justify-content: center;
  }
}

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

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.05rem;
  line-height: 1.7;
}

.about-lead {
  font-size: 1.2rem !important;
  color: var(--text) !important;
  font-weight: 400;
}

.about-text strong {
  color: var(--accent);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 211, 238, 0.06);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ===== SERVICES ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 211, 238, 0.06);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--accent);
}

.service-card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  margin-bottom: 12px;
  font-weight: 600;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: all var(--transition);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s forwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }

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

.project-card:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(34, 211, 238, 0.08);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.project-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-dim);
  border-radius: 10px;
  color: var(--accent);
}

.project-links {
  display: flex;
  gap: 12px;
}

.project-links a {
  color: var(--text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}

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

.project-name {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-install {
  margin-bottom: 16px;
}

.project-install code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: rgba(34, 211, 238, 0.08);
  color: var(--accent);
  padding: 8px 14px;
  border-radius: 6px;
  display: inline-block;
  border: 1px solid rgba(34, 211, 238, 0.15);
}

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

.project-tags span {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: 4px;
}

@media (max-width: 400px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== TECH STACK ===== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.stack-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: all var(--transition);
}

.stack-category:hover {
  border-color: rgba(34, 211, 238, 0.2);
}

.stack-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  font-weight: 600;
}

.stack-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-item {
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 12px;
  border-radius: 6px;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.stack-item:hover {
  border-color: var(--border);
  color: var(--text);
}

@media (max-width: 768px) {
  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .stack-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== CONTACT ===== */
.contact-content {
  max-width: 640px;
}

.contact-lead {
  font-size: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

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

.contact-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all var(--transition);
  color: var(--text-secondary);
}

.contact-item:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateX(4px);
}

.contact-item:hover .contact-value {
  color: var(--accent);
}

.contact-item svg {
  flex-shrink: 0;
  color: var(--accent);
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
  font-family: var(--font-mono);
}

.contact-value {
  font-size: 1rem;
  color: var(--text);
  transition: color var(--transition);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

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

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
}

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

@media (max-width: 480px) {
  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

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

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

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

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

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ===== SELECTION ===== */
::selection {
  background: rgba(34, 211, 238, 0.2);
  color: var(--text);
}