:root {
  --bg: #04060e;
  --bg-soft: #0f1424;
  --panel: rgba(14, 20, 38, 0.72);
  --text: #edf3ff;
  --muted: #9eacc8;
  --primary: #6d4bff;
  --accent: #00d5ff;
  --accent-soft: #88ecff;
  --danger: #ff5f7a;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background: linear-gradient(150deg, #010309 0%, #04060e 48%, #07122a 100%);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(0, 213, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(109, 75, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  opacity: 0.16;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 213, 255, 0.02) 48%, transparent 100%);
  background-size: 100% 220px;
  animation: scan 9s linear infinite;
  opacity: 0.18;
}

.hex-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.95;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  z-index: 1000;
}

.header,
.section,
.footer {
  width: min(1120px, 92vw);
  margin-inline: auto;
  position: relative;
  z-index: 2;
}

.header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(0, 213, 255, 0.3);
  border-radius: 999px;
  background: rgba(6, 10, 20, 0.82);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  z-index: 1200;
}

.header.is-scrolled {
  border-color: rgba(0, 213, 255, 0.62);
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(0, 213, 255, 0.9);
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(0, 213, 255, 0.32);
  background: transparent;
  color: var(--text);
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
}

.nav {
  display: inline-flex;
  align-items: center;
  gap: 1.1rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.25s ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
}

.nav a.is-active {
  color: var(--text);
  text-shadow: 0 0 16px rgba(0, 213, 255, 0.6);
}

main {
  padding-top: 5.4rem;
}

.section {
  padding: 7rem 0 2rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: start;
}

.kicker {
  color: var(--accent);
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  text-transform: uppercase;
  font-family: "JetBrains Mono", monospace;
}

.hero h1 {
  margin: 0.35rem 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.12;
}

.hero-copy {
  max-width: 56ch;
  color: var(--muted);
}

.hero-cta {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  border-radius: 999px;
  text-decoration: none;
  padding: 0.72rem 1.2rem;
  font-weight: 600;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 12px 28px rgba(109, 75, 255, 0.4);
}

.btn-ghost {
  color: var(--text);
  border-color: rgba(0, 213, 255, 0.4);
  background: rgba(255, 255, 255, 0.04);
}

.stats-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(110px, 1fr));
  gap: 0.8rem;
}

.stat-card {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: var(--panel);
  padding: 0.9rem;
  backdrop-filter: blur(10px);
}

.stat-number {
  margin: 0;
  font-size: 1.55rem;
}

.stat-card p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.terminal-card {
  border-radius: var(--radius);
  border: 1px solid rgba(0, 213, 255, 0.25);
  background: rgba(7, 11, 22, 0.84);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: perspective(900px) rotateY(-10deg) rotateX(3deg);
  animation: float 6s ease-in-out infinite;
}

.terminal-top {
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid rgba(0, 213, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.02);
}

.terminal-top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0, 213, 255, 0.5);
}

.terminal-top span:nth-child(1) {
  background: rgba(255, 95, 122, 0.85);
}

.terminal-top span:nth-child(2) {
  background: rgba(0, 213, 255, 0.9);
}

.terminal-top span:nth-child(3) {
  background: rgba(127, 61, 255, 0.85);
}

.terminal-top p {
  margin: 0 0 0 auto;
  font-size: 0.75rem;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
}

.terminal-body {
  font-family: "JetBrains Mono", monospace;
  padding: 1rem;
  min-height: 230px;
}

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

.caret {
  animation: blink 1s steps(1) infinite;
}

.terminal-output {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.about p,
.section-head p,
.contact p {
  color: var(--muted);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.skill-grid,
.project-grid {
  margin-top: 1.2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.skill-card,
.project-card,
.contact-form {
  border: 1px solid rgba(0, 213, 255, 0.18);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 1rem;
  backdrop-filter: blur(10px);
}

.skill-card h3,
.project-card h3 {
  margin-top: 0;
}

.meter {
  height: 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  margin-top: 0.9rem;
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  width: var(--value);
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.filters {
  display: inline-flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.chip {
  border-radius: 999px;
  padding: 0.38rem 0.78rem;
  border: 1px solid rgba(0, 213, 255, 0.3);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
}

.chip.is-active {
  border-color: rgba(0, 213, 255, 0.8);
  color: var(--text);
  box-shadow: 0 0 0 1px rgba(0, 213, 255, 0.35) inset;
}

.project-card {
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: rgba(127, 61, 255, 0.65);
}

.case-id {
  margin: 0;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  letter-spacing: 0.04em;
  font-size: 0.78rem;
}

.project-card ul {
  margin: 0.8rem 0 0;
  padding-left: 1rem;
  color: var(--muted);
}

.contact .project-card a {
  color: var(--accent-soft);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

.contact .project-card a:hover,
.contact .project-card a:focus-visible {
  color: var(--text);
  text-shadow: 0 0 14px rgba(0, 213, 255, 0.45);
}

.contact-form {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
  max-width: 620px;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(0, 213, 255, 0.25);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  padding: 0.68rem 0.75rem;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(0, 213, 255, 0.72);
  box-shadow: 0 0 0 3px rgba(0, 213, 255, 0.16);
}

.footer {
  padding: 3rem 0;
  color: var(--muted);
  text-align: center;
}

.back-to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(0, 213, 255, 0.45);
  background: rgba(8, 12, 23, 0.86);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  backdrop-filter: blur(10px);
  z-index: 1200;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover,
.back-to-top:focus-visible {
  box-shadow: 0 0 0 2px rgba(0, 213, 255, 0.38), 0 10px 30px rgba(0, 0, 0, 0.45);
}

.spark {
  position: fixed;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(136, 236, 255, 1) 0%, rgba(109, 75, 255, 0.76) 60%, rgba(109, 75, 255, 0) 100%);
  pointer-events: none;
  z-index: 1300;
  animation: spark-pop 520ms ease-out forwards;
}

@keyframes spark-pop {
  0% {
    transform: translate(-50%, -50%) scale(0.5);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.4);
    opacity: 0;
  }
}

@keyframes scan {
  0% {
    background-position: 0 -220px;
  }
  100% {
    background-position: 0 220px;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}

@keyframes float {
  0%,
  100% {
    transform: perspective(900px) rotateY(-10deg) rotateX(3deg) translateY(0);
  }
  50% {
    transform: perspective(900px) rotateY(-8deg) rotateX(2deg) translateY(-8px);
  }
}

@media (max-width: 940px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .terminal-card {
    transform: none;
    animation: none;
  }

  .skill-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .header {
    border-radius: 16px;
    flex-wrap: wrap;
    gap: 0.6rem;
    width: min(1120px, 95vw);
  }

  .menu-toggle {
    display: inline-block;
  }

  .nav {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.5rem;
  }

  .nav.open {
    display: flex;
  }

  .section {
    padding-top: 5.4rem;
  }

  main {
    padding-top: 6.4rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}