:root {
  --bg:          #080C12;
  --bg-2:        #0D1320;
  --bg-3:        #111927;
  --surface:     #141C28;
  --surface-2:   #1A2438;
  --border:      rgba(255,255,255,0.06);
  --border-hover:rgba(255,255,255,0.14);

  --text:        #E2E8F0;
  --text-2:      #94A3B8;
  --text-3:      #64748B;

  --accent:      #3B82F6;
  --accent-2:    #60A5FA;
  --accent-glow: rgba(59,130,246,0.15);
  --accent-dim:  rgba(59,130,246,0.08);

  --green:       #10B981;
  --green-dim:   rgba(16,185,129,0.1);

  --mono:        'DM Mono', 'Space Mono', monospace;
  --sans:        'DM Sans', system-ui, sans-serif;
  --display:     'Space Mono', monospace;

  --radius:      8px;
  --radius-lg:   16px;
  --transition:  0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.6);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

/* --- NOISE OVERLAY --- */
.noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(8,12,18,0);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(8,12,18,0.92);
  border-bottom-color: var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--display);
  font-size: 1.1em;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text);
}

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

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

.nav-links a {
  font-family: var(--mono);
  font-size: 0.75em;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-2);
  transition: color var(--transition);
}

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

.nav-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.72em;
  color: var(--green);
  letter-spacing: 1px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* --- HERO --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 32px 80px;
  overflow: hidden;
}

.hero-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--display);
  font-size: clamp(80px, 20vw, 260px);
  font-weight: 700;
  letter-spacing: -4px;
  color: rgba(255,255,255,0.050);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 0.72em;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.label-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--accent);
}

.hero-name {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-family: var(--display);
  font-size: clamp(52px, 9vw, 120px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -3px;
  margin-bottom: 32px;
  opacity: 0.82;
}

.name-line {
  display: block;
  opacity: 0;
  animation: fadeUp 0.9s ease forwards 0.4s;
}

.name-line.accent {
  color: var(--accent);
  animation-delay: 0.55s;
}

.hero-sub {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--text-2);
  letter-spacing: 2px;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.7s;
}

.cert-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 0;
  font-family: var(--mono);
  font-size: 0.7em;
  letter-spacing: 1px;
  color: var(--text-3);
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.85s;
}

.cert-strip span { padding: 0 4px; }
.cert-strip .sep { color: var(--border-hover); }

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 1s;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  right: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-3);
  opacity: 0;
  animation: fadeIn 1s ease forwards 1.4s;
}

.scroll-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--text-3));
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* --- BUTTONS --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.75em;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: all var(--transition);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 0.75em;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.btn-ghost:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

/* --- SECTIONS --- */
.section {
  position: relative;
  padding: 120px 32px;
}

.section-dark {
  background: var(--bg-2);
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 0.7em;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 40px;
}

.section-title {
  font-family: var(--display);
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--text);
  margin-bottom: 48px;
}

.section-title em {
  font-style: normal;
  color: var(--accent);
}

/* --- ABOUT --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--text-2);
  font-size: 0.95em;
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-text p strong {
  color: var(--text);
  font-weight: 500;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--display);
  font-size: 2em;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
}

.stat-plus {
  font-size: 0.6em;
  color: var(--accent);
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-3);
}

/* --- TERMINAL --- */
.about-terminal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 88px;
}

.terminal-bar {
  background: var(--surface-2);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.t-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.t-dot.red    { background: #FF5F57; }
.t-dot.yellow { background: #FEBC2E; }
.t-dot.green  { background: #28C840; }

.t-title {
  font-family: var(--mono);
  font-size: 0.72em;
  color: var(--text-3);
  margin-left: 8px;
}

.terminal-body {
  padding: 20px 20px 24px;
  font-family: var(--mono);
  font-size: 0.78em;
  line-height: 1.9;
}

.t-line { display: block; }
.t-out  { color: var(--text-2); padding-left: 0; }

.t-prompt { color: var(--green); margin-right: 8px; }
.t-cmd    { color: var(--accent-2); }
.t-key    { color: var(--accent-2); }
.t-val    { color: #A3E635; }

.t-cursor {
  display: inline-block;
  color: var(--text);
  animation: blink 1s step-end infinite;
}

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

/* --- STACK --- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 0;
}

.stack-category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.stack-category:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 32px var(--accent-dim);
}

.stack-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.stack-icon {
  font-size: 1.1em;
  color: var(--accent);
}

.stack-cat-name {
  font-family: var(--mono);
  font-size: 0.72em;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 500;
}

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

.stack-item {
  display: inline-block;
  padding: 5px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.7em;
  color: var(--text-2);
  letter-spacing: 0.5px;
  transition: all var(--transition);
  cursor: default;
}

.stack-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

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

.project-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dim) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 48px rgba(59,130,246,0.12);
}

.project-card:hover::before { opacity: 1; }

.project-card.featured {
  border-color: rgba(59,130,246,0.3);
  background: linear-gradient(135deg, rgba(59,130,246,0.05) 0%, var(--surface) 100%);
}

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

.project-number {
  font-family: var(--display);
  font-size: 0.7em;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
}

.project-arrow {
  font-size: 1.2em;
  color: var(--text-3);
  transition: all var(--transition);
}

.project-card:hover .project-arrow {
  color: var(--accent);
  transform: translate(4px, -4px);
}

.project-title {
  font-family: var(--mono);
  font-size: 0.92em;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.project-desc {
  font-size: 0.85em;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.project-tags span {
  padding: 4px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 0.5px;
  color: var(--text-3);
  transition: all var(--transition);
}

.project-card:hover .project-tags span {
  border-color: rgba(59,130,246,0.3);
  color: var(--accent-2);
}

.project-roles {
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 1px;
  color: var(--text-3);
  text-transform: uppercase;
}

/* --- CERT BAND --- */
.cert-band {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 32px;
}

.cert-band-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
}

.cert-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0 32px;
}

.cert-name {
  font-family: var(--display);
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text);
}

.cert-status {
  font-family: var(--mono);
  font-size: 0.6em;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--green);
}

.cert-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* --- CONTACT --- */
.section-contact {
  background: var(--bg-2);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.contact-left p {
  color: var(--text-2);
  font-size: 0.95em;
  line-height: 1.8;
  margin-bottom: 16px;
}

.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.contact-item:first-child { padding-top: 0; }

.contact-label {
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-3);
}

.contact-value {
  font-family: var(--mono);
  font-size: 0.82em;
  color: var(--text);
}

.contact-link {
  color: var(--accent-2);
  transition: color var(--transition);
}

.contact-link:hover { color: var(--text); }

.contact-cta {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

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

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-name {
  font-family: var(--mono);
  font-size: 0.85em;
  letter-spacing: 1px;
  color: var(--text-3);
}

.footer-copy {
  font-family: var(--mono);
  font-size: 0.7em;
  letter-spacing: 1px;
  color: var(--text-3);
}

.footer-built {
  font-family: var(--mono);
  font-size: 0.65em;
  letter-spacing: 1px;
  color: var(--text-3);
}

/* --- ANIMATIONS --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .about-grid        { grid-template-columns: 1fr; gap: 48px; }
  .about-terminal    { position: static; }
  .stack-grid        { grid-template-columns: repeat(2, 1fr); }
  .contact-grid      { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  .nav-links         { display: none; }
  .hero-name         { letter-spacing: -2px; }
  .projects-grid     { grid-template-columns: 1fr; }
  .stack-grid        { grid-template-columns: 1fr; }
  .about-stats       { grid-template-columns: repeat(2, 1fr); }
  .cert-band-inner   { gap: 0; }
  .cert-item         { padding: 12px 20px; }
  .cert-divider      { display: none; }
  .hero-scroll       { display: none; }
  .footer-inner      { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .section           { padding: 80px 20px; }
  .hero              { padding: 100px 20px 60px; }
  .nav               { padding: 0 20px; }
  .hero-cta          { flex-direction: column; }
  .btn-primary,
  .btn-ghost         { text-align: center; justify-content: center; }
  .about-stats       { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

/* --- SELECTION --- */
::selection {
  background: var(--accent);
  color: #fff;
}