/* ============================================================
   NM Portfolio — Global Styles
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- Tokens ---------- */
:root {
  --bg:          #0D1117;
  --surface:     #161B22;
  --surface-2:   #1C2333;
  --border:      #30363D;
  --cyan:        #00B4D8;
  --cyan-dim:    rgba(0, 180, 216, 0.12);
  --violet:      #7C3AED;
  --violet-dim:  rgba(124, 58, 237, 0.12);
  --green:       #3FB950;
  --text:        #E6EDF3;
  --text-muted:  #8B949E;
  --text-faint:  #484F58;
  --radius-sm:   6px;
  --radius:      12px;
  --radius-lg:   20px;
  --font-display:'Space Grotesk', sans-serif;
  --font-body:   'Inter', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --transition:  0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 64px;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--cyan); }

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }

.nav-cta {
  padding: 8px 20px;
  background: var(--cyan-dim);
  border: 1px solid var(--cyan);
  border-radius: var(--radius-sm);
  color: var(--cyan) !important;
  font-size: 0.85rem !important;
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.nav-cta:hover { background: rgba(0,180,216,0.22) !important; }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 5%;
  padding-top: 64px;
  position: relative;
  overflow: hidden;
}

/* grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
  pointer-events: none;
}
/* radial glow */
.hero::after {
  content: '';
  position: absolute;
  top: -20%; left: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(0,180,216,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 750px; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px; height: 1px;
  background: var(--cyan);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}
.hero-name .accent { color: var(--cyan); }

/* Terminal typing widget */
.terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.8rem;
  width: 100%;
  max-width: 520px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.terminal-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 0.8rem;
}
.terminal-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal-dot:nth-child(1) { background: #FF5F57; }
.terminal-dot:nth-child(2) { background: #FFBD2E; }
.terminal-dot:nth-child(3) { background: #28C840; }

.terminal-line {
  color: var(--text-muted);
  margin-bottom: 4px;
}
.terminal-line .prompt { color: var(--cyan); }
.terminal-line .cmd    { color: var(--text); }
.terminal-line .out    { color: var(--green); }
.terminal-line .out-v  { color: var(--violet); opacity: 0.9; }

#typed-text { color: var(--cyan); }
.cursor {
  display: inline-block;
  width: 8px; height: 1em;
  background: var(--cyan);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 540px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--cyan);
  color: #0D1117;
}
.btn-primary:hover { background: #0099bb; }

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

/* scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-faint);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  animation: fadeInUp 1s 1.5s both;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100% { opacity:0.3; } 50% { opacity:1; } }
@keyframes fadeInUp { from { opacity:0; transform: translate(-50%,10px); } to { opacity:1; transform: translate(-50%,0); } }

/* ============================================================
   SECTIONS SHARED
   ============================================================ */
section { padding: 100px 5%; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 80px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}

.section-sub {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 520px;
  margin-bottom: 3.5rem;
  line-height: 1.7;
}

/* ============================================================
   PROJECTS SECTION
   ============================================================ */
#projects { background: var(--surface); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}
.project-card:hover::before { opacity: 1; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.card-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}
.icon-network { background: var(--cyan-dim); }
.icon-framework { background: var(--violet-dim); }
.icon-shop { background: rgba(63, 185, 80, 0.12); }

.card-links { display: flex; gap: 0.5rem; }
.card-link {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.card-link:hover { border-color: var(--cyan); color: var(--cyan); }

.card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.65;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  font-weight: 500;
  border: 1px solid;
}
.tag-cyan   { color: var(--cyan);   border-color: var(--cyan);   background: var(--cyan-dim); }
.tag-violet { color: #A78BFA;        border-color: #6D28D9;       background: var(--violet-dim); }
.tag-green  { color: var(--green);  border-color: #238636;       background: rgba(63,185,80,0.1); }
.tag-orange { color: #F97316;        border-color: #C2410C;       background: rgba(249,115,22,0.1); }
.tag-yellow { color: #FBBF24;        border-color: #B45309;       background: rgba(251,191,36,0.1); }

.card-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-more {
  font-size: 0.82rem;
  color: var(--cyan);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}
.card-more:hover { gap: 8px; }

/* ============================================================
   ABOUT SECTION
   ============================================================ */
#about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-bio {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.about-bio strong { color: var(--text); }

.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.skill-group-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-pill {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}
.skill-pill:hover { border-color: var(--cyan); color: var(--cyan); }

/* About right - visual card stack */
.about-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--border); }

.stat-icon {
  font-size: 1.6rem;
  width: 48px;
  text-align: center;
}

.stat-info { flex: 1; }
.stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
  margin-bottom: 2px;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   CONTACT / SOCIAL STRIP
   ============================================================ */
.contact-strip {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 5%;
  text-align: center;
}

.contact-strip .section-label { justify-content: center; }
.contact-strip .section-label::after { display: none; }
.contact-strip .section-title { text-align: center; margin-bottom: 0.5rem; }
.contact-strip p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 2rem; }

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
}
.social-link svg { width: 18px; height: 18px; }
.social-link:hover { color: var(--cyan); border-color: var(--cyan); background: var(--cyan-dim); }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  padding: 2rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-faint);
}
footer a { color: var(--text-muted); transition: color var(--transition); }
footer a:hover { color: var(--cyan); }

/* ============================================================
   PROJECT PAGE
   ============================================================ */
.project-page { padding-top: 64px; }

.project-hero {
  padding: 80px 5% 60px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.project-hero-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 2rem;
  transition: color var(--transition);
}
.project-hero-back:hover { color: var(--cyan); }

.project-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.project-hero-desc {
  color: var(--text-muted);
  max-width: 620px;
  line-height: 1.7;
  font-size: 0.98rem;
  margin-bottom: 1.5rem;
}
.project-hero-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}
.project-meta-item { font-size: 0.82rem; }
.project-meta-item .label {
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  display: block;
  margin-bottom: 4px;
}
.project-meta-item .value { color: var(--text); font-weight: 500; }

.project-body {
  padding: 80px 5%;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  max-width: 1200px;
}

.project-section-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text);
}
.project-text {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.feature-item::before {
  content: '▸';
  color: var(--cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.project-sidebar {
  position: sticky;
  top: 84px;
  align-self: start;
}

.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.sidebar-card-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.tech-stack-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.tech-stack-item:last-child { border-bottom: none; }
.tech-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  flex-shrink: 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  #about {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .project-body {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .project-sidebar { position: static; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 5%;
    gap: 1.2rem;
  }
  .projects-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 0.75rem; text-align: center; }
}