/* ===========================
   RESET & ROOT
=========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
 
:root {
  --bg:        #080b10;
  --surface:   #0e1117;
  --surface2:  #161b25;
  --border:    rgba(255, 255, 255, 0.06);
  --border2:   rgba(255, 255, 255, 0.12);
  --text:      #dde3ef;
  --muted:     #6b7694;
  --accent:    #5eead4;   /* teal */
  --accent2:   #93c5fd;   /* sky blue */
  --accent3:   #f472b6;   /* pink highlight */
  --font-display: 'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;
}
 
html {
  scroll-behavior: smooth;
}
 
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.75;
  overflow-x: hidden;
}
 
/* ===========================
   NAVIGATION
=========================== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  padding: 1.1rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(8, 11, 16, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s;
}
 
nav.scrolled {
  padding: 0.75rem 3rem;
}
 
.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
}
 
.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
 
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}
 
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.25s;
}
 
.nav-links a:hover {
  color: var(--text);
}
 
.nav-links a:hover::after {
  width: 100%;
}
 
.nav-menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--border2);
  color: var(--text);
  font-size: 1.1rem;
  padding: 0.35rem 0.6rem;
  border-radius: 5px;
  cursor: pointer;
}
 
/* ===========================
   SHARED SECTION STYLES
=========================== */
section {
  padding: 7rem 0;
}
 
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 3rem;
}
 
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
 
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 3rem;
}
 
/* ===========================
   HERO
=========================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  position: relative;
  overflow: hidden;
}
 
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
 
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
}
 
.hero-glow {
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(94,234,212,0.055) 0%, transparent 65%);
  top: -150px; right: -80px;
}
 
.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}
 
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
 
.hero-tag {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
 
.hero-tag::before {
  content: '';
  display: inline-block;
  width: 24px; height: 1px;
  background: var(--accent);
}
 
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}
 
.hero-name span {
  color: var(--accent);
}
 
.hero-desc {
  color: var(--muted);
  font-size: 0.88rem;
  max-width: 420px;
  margin-bottom: 2.5rem;
  line-height: 1.95;
}
 
.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
 
/* ===========================
   BUTTONS
=========================== */
.btn {
  padding: 0.72rem 1.6rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid transparent;
}
 
.btn-primary {
  background: var(--accent);
  color: #080b10;
  border-color: var(--accent);
}
 
.btn-primary:hover {
  background: #99f6e4;
  border-color: #99f6e4;
  transform: translateY(-2px);
}
 
.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border2);
}
 
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
 
/* ===========================
   TERMINAL
=========================== */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  font-size: 0.8rem;
}
 
.terminal-bar {
  background: var(--surface2);
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid var(--border);
}
 
.terminal-title {
  margin-left: 0.5rem;
  font-size: 0.72rem;
  color: var(--muted);
}
 
.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
 
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
 
.terminal-body {
  padding: 1.4rem 1.6rem;
  min-height: 240px;
}
 
.t-line {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 0.3rem;
}
 
.t-prompt { color: var(--accent3); }
.t-cmd    { color: var(--text); }
.t-output { color: var(--muted); padding-left: 1.1rem; }
.t-key    { color: var(--accent2); }
.t-val    { color: var(--accent); }
 
.cursor {
  display: inline-block;
  width: 8px; height: 1em;
  background: var(--accent);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}
 
@keyframes blink {
  50% { opacity: 0; }
}
 
/* ===========================
   ABOUT
=========================== */
#about {
  background: var(--surface);
}
 
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
 
.about-text {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.95;
}
 
.about-text p {
  margin-bottom: 1rem;
}
 
.skills-heading {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}
 
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
 
.skill-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.85rem;
  font-size: 0.79rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  transition: all 0.2s;
}
 
.skill-chip::before {
  content: '▹';
  color: var(--accent);
  font-size: 0.68rem;
  flex-shrink: 0;
}
 
.skill-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
 
/* ===========================
   PROJECTS
=========================== */
#projects {
  background: var(--bg);
}
 
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.5rem;
}
 
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.9rem;
  transition: transform 0.25s, border-color 0.25s;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
 
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
 
.project-card:hover {
  border-color: var(--border2);
  transform: translateY(-4px);
}
 
.project-card:hover::before {
  transform: scaleX(1);
}
 
.project-num {
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  opacity: 0.6;
}
 
.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--text);
  line-height: 1.3;
}
 
.project-subtitle {
  font-size: 0.77rem;
  color: var(--accent2);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}
 
.project-desc {
  list-style: none;
  margin-bottom: 1.25rem;
  flex: 1;
}
 
.project-desc li {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0.3rem;
  padding-left: 1rem;
  position: relative;
}
 
.project-desc li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--accent);
}
 
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}
 
.tag {
  background: var(--surface2);
  color: var(--accent2);
  font-size: 0.71rem;
  padding: 0.2rem 0.65rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
}
 
.project-links {
  display: flex;
  gap: 1.25rem;
}
 
.project-link {
  color: var(--muted);
  font-size: 0.79rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.2s;
}
 
.project-link:hover {
  color: var(--accent);
}
 
/* ===========================
   CONTACT
=========================== */
#contact {
  background: var(--surface);
}
 
.contact-inner {
  max-width: 620px;
}
 
.contact-desc {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 2rem;
  line-height: 1.95;
}
 
.contact-email {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.01em;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
 
.contact-email:hover {
  color: #99f6e4;
  border-color: #99f6e4;
}
 
.contact-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
 
/* ===========================
   FOOTER
=========================== */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
}
 
footer strong {
  color: var(--text);
}
 
/* ===========================
   FADE-IN ANIMATION
=========================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
 
.fade-in.visible {
  opacity: 1;
  transform: none;
}
 
/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 860px) {
  nav { padding: 1rem 1.5rem; }
  nav.scrolled { padding: 0.7rem 1.5rem; }
  .nav-links { display: none; }
  .nav-menu-btn { display: block; }
  .container { padding: 0 1.5rem; }
 
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
 
  .terminal { display: none; }
 
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
 
  .projects-grid {
    grid-template-columns: 1fr;
  }
}