:root {
  --bg: #f4f7fc;
  --bg-alt: #eef3fb;
  --surface: #ffffffcc;
  --surface-strong: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: #d8e3f5;
  --accent: #3861fb;
  --accent-2: #23b7ff;
  --glow: rgba(56, 97, 251, 0.28);
  --shadow: 0 10px 30px rgba(31, 41, 55, 0.08);
  --label-color: #3155de;
  --btn-text: #ffffff;
  --grid-opacity: 0.04;
  --scanline-opacity: 0;
  --noise-opacity: 0;
  --mono: "JetBrains Mono", monospace;
  --cursor-x: 50%;
  --cursor-y: 20%;
  --cursor-spot: rgba(67, 38, 125, 0.52);
  --cursor-spot-ring: rgba(167, 116, 255, 0.24);
}

html[data-mode="hacker"] {
  --bg: #010504;
  --bg-alt: #03120d;
  --surface: #02150fcc;
  --surface-strong: #031f17;
  --text: #a5ffd6;
  --muted: #62cda5;
  --border: #0f4f3d;
  --accent: #18ff8c;
  --accent-2: #43ffc6;
  --glow: rgba(24, 255, 140, 0.5);
  --shadow: 0 0 45px rgba(24, 255, 140, 0.2);
  --label-color: #55ffb0;
  --btn-text: #00180d;
  --grid-opacity: 0.2;
  --scanline-opacity: 0.14;
  --noise-opacity: 0.07;
  --cursor-spot: rgba(8, 66, 41, 0.62);
  --cursor-spot-ring: rgba(24, 255, 140, 0.26);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 10vh;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 20% 10%, var(--bg-alt), var(--bg));
  transition: background 450ms ease, color 450ms ease;
  overflow-x: hidden;
}

body.mode-flash::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 80;
  background: radial-gradient(circle at 50% 50%, rgba(24, 255, 140, 0.24), transparent 55%);
  animation: flashOut 280ms ease forwards;
}

body.switch-glitch {
  animation: switchJitter 720ms steps(3, jump-none);
}

body.switch-glitch main,
body.switch-glitch .site-header,
body.switch-glitch .site-footer {
  animation: switchChromatic 720ms steps(3, jump-none);
}

.bg-gradient,
.bg-grid,
.bg-scanlines,
.bg-noise,
.matrix-rain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.bg-gradient {
  background: radial-gradient(circle at 15% 15%, var(--glow), transparent 46%),
    radial-gradient(circle at var(--cursor-x) var(--cursor-y), var(--cursor-spot) 0%, transparent 28%),
    radial-gradient(circle at var(--cursor-x) var(--cursor-y), var(--cursor-spot-ring) 8%, transparent 42%);
  animation: drift 10s ease-in-out infinite alternate;
  will-change: transform;
}

.bg-grid {
  background-image: linear-gradient(to right, rgba(128, 128, 128, 0.2) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(128, 128, 128, 0.2) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: var(--grid-opacity);
  transition: opacity 450ms ease;
  will-change: transform;
}

.bg-scanlines {
  opacity: var(--scanline-opacity);
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.04),
    rgba(255, 255, 255, 0.04) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: screen;
  transition: opacity 450ms ease;
}

.bg-noise {
  opacity: var(--noise-opacity);
  background-image: radial-gradient(rgba(255, 255, 255, 0.2) 0.55px, transparent 0.55px);
  background-size: 3px 3px;
  will-change: transform;
}

.matrix-rain {
  opacity: 0;
  transition: opacity 320ms ease;
}

html[data-mode="hacker"] .matrix-rain {
  opacity: 0.42;
}

html[data-mode="hacker"] body.matrix-boost .matrix-rain {
  opacity: 0.78;
}

.container {
  width: min(1120px, calc(100% - 2.2rem));
  margin-inline: auto;
}

.section {
  padding: 5.3rem 0;
  transition: transform 450ms cubic-bezier(0.22, 1, 0.36, 1), filter 320ms ease, opacity 320ms ease;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border-bottom: 1px solid var(--border);
  z-index: 30;
  transition: background 400ms ease, border-color 400ms ease;
}

.header-inner {
  min-height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0.65rem;
}

.nav {
  display: flex;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  transition: color 220ms ease;
}

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

.mode-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.mode-toggle-floating {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  padding: 0.6rem 1rem;
  background: color-mix(in srgb, var(--surface-strong) 85%, transparent);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  transform: scale(1);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease, border-color 0.3s ease;
  animation: floatToggle 4s ease-in-out infinite alternate;
}

.mode-toggle-floating:hover {
  transform: scale(1.1) translateY(-4px);
  box-shadow: 0 15px 30px var(--glow);
  border-color: var(--accent);
}

@keyframes floatToggle {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.mode-switch-track {
  width: 2.7rem;
  height: 1.3rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  border: 1px solid var(--border);
  position: relative;
}

.mode-switch-thumb {
  position: absolute;
  top: 50%;
  left: 0.16rem;
  width: 0.92rem;
  height: 0.92rem;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--glow);
  transition: left 300ms ease, background 350ms ease;
}

html[data-mode="hacker"] .mode-switch-thumb {
  left: 1.49rem;
}

.mode-label {
  font-size: 0.8rem;
}

.mode-label-hacker {
  font-family: var(--mono);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5.8vw, 4.1rem);
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.6rem, 4.2vw, 2.4rem);
  margin-top: 0.35rem;
}

.eyebrow {
  color: var(--label-color);
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

html[data-mode="hacker"] .eyebrow {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.77rem;
  text-shadow: 0 0 9px rgba(24, 255, 140, 0.33);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 1.4rem;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.info-panel,
.project-card,
.skill-chip,
.site-footer,
.contact-links .btn {
  transition: background 350ms ease, border-color 350ms ease, box-shadow 350ms ease, transform 250ms ease,
    color 350ms ease;
}

.hero-copy,
.hero-panel,
.info-panel {
  padding: 1.6rem;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.terminal-window {
  position: relative;
  overflow: hidden;
}

.terminal-window::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(125deg, rgba(24, 255, 140, 0.07), transparent 24%, transparent 80%, rgba(24, 255, 140, 0.05));
  opacity: 0;
  transition: opacity 300ms ease;
}

html[data-mode="hacker"] .terminal-window::after {
  opacity: 1;
}

.terminal-top {
  display: flex;
  align-items: center;
  gap: 0.42rem;
  margin-bottom: 0.95rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.62rem;
}

.terminal-top span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-strong) 80%, transparent);
}

.terminal-top p {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.74rem;
  font-family: var(--mono);
}

.subtitle {
  margin-top: 0.7rem;
  color: var(--accent);
  font-weight: 700;
}

html[data-mode="hacker"] .subtitle {
  font-family: var(--mono);
}

.intro {
  margin-top: 1rem;
  color: var(--muted);
  max-width: 56ch;
  line-height: 1.65;
}

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

.btn {
  text-decoration: none;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 0.7rem 1rem;
  border-radius: 0.7rem;
  font-weight: 700;
  border: 1px solid var(--border);
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--glow);
}

.btn-secondary {
  background: var(--surface-strong);
  color: var(--text);
}

.btn-secondary:hover {
  background: var(--accent);
  color: var(--btn-text);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--glow);
}

html[data-mode="hacker"] .btn {
  font-family: var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.panel-title {
  color: var(--accent);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  margin-bottom: 0.9rem;
  font-weight: 700;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.stat-grid article {
  background: color-mix(in srgb, var(--surface-strong) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 0.75rem;
}

.stat-value {
  font-weight: 800;
  color: var(--accent);
  font-size: 1.15rem;
}

.stat-label {
  margin-top: 0.2rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.about-grid {
  margin-top: 1.3rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.2fr 1fr;
}

.about-text {
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1.3rem;
  color: var(--muted);
  line-height: 1.65;
}

.info-link {
  display: block;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0.68rem;
  margin-top: 0.55rem;
  padding: 0.7rem;
  background: color-mix(in srgb, var(--surface-strong) 65%, transparent);
}

.info-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.project-grid {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.project-card {
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  padding: 1.2rem;
  box-shadow: var(--shadow);
  position: relative;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 8px 24px var(--glow);
}

.node-state {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.64rem;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.12rem 0.45rem;
  background: color-mix(in srgb, var(--surface-strong) 65%, transparent);
}

.project-tag {
  font-family: var(--mono);
  color: var(--label-color);
  font-size: 0.78rem;
}

.project-card h3 {
  margin-top: 0.55rem;
}

.project-card p {
  margin-top: 0.65rem;
  color: var(--muted);
  line-height: 1.55;
}

.card-btn {
  margin-top: 1.15rem;
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  padding: 0.48rem 0.78rem;
  color: var(--accent);
  font-weight: 700;
}

html[data-mode="hacker"] .project-card::after {
  content: "ACCESS POINT";
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  font-size: 0.66rem;
  font-family: var(--mono);
  color: var(--accent-2);
  opacity: 0.75;
  top: auto;
  bottom: 0.8rem;
}

.skills-wrap {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.skill-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.62rem 0.95rem;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
}

.skill-chip:hover {
  transform: translateY(-1px) scale(1.02);
  color: var(--accent);
  border-color: var(--accent);
}

html[data-mode="hacker"] .skill-chip {
  border-radius: 0.45rem;
  font-family: var(--mono);
  position: relative;
}

html[data-mode="hacker"] .skill-chip::before {
  content: "sys";
  text-transform: uppercase;
  font-size: 0.58rem;
  margin-right: 0.5rem;
  color: var(--accent-2);
}

.contact-copy {
  margin-top: 0.8rem;
  color: var(--muted);
}

.contact-links {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
}

.footer-inner {
  min-height: 4.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  padding: 0.95rem 0;
}

.footer-links {
  display: inline-flex;
  gap: 1rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--muted);
}

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

.reveal {
  opacity: 0;
  transform: perspective(900px) translateY(22px) rotateX(7deg) scale(0.985);
}

.reveal.show {
  opacity: 1;
  transform: perspective(900px) translateY(0) rotateX(0deg) scale(1);
  transition: opacity 650ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.scroll-3d {
  transform: perspective(1100px) translateY(var(--scroll-shift, 0px)) rotateX(var(--scroll-tilt, 0deg));
}

.section.is-defocused {
  filter: blur(3.2px) saturate(0.82);
  opacity: 0.52;
}

.section.is-focused {
  filter: blur(0);
  opacity: 1;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: var(--scroll-progress, 0%);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--glow);
  transition: width 120ms linear;
}

.glitch-text {
  position: relative;
}

html[data-mode="hacker"] .glitch-text::before,
html[data-mode="hacker"] .glitch-text::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
}

html[data-mode="hacker"] .glitch-text::before {
  color: rgba(67, 255, 198, 0.65);
  transform: translate(1px, -1px);
  clip-path: inset(10% 0 55% 0);
  animation: glitchA 3s infinite steps(2);
}

html[data-mode="hacker"] .glitch-text::after {
  color: rgba(24, 255, 140, 0.45);
  transform: translate(-1px, 1px);
  clip-path: inset(60% 0 10% 0);
  animation: glitchB 2.2s infinite steps(2);
}

html[data-mode="hacker"] .hero-copy,
html[data-mode="hacker"] .hero-panel,
html[data-mode="hacker"] .info-panel,
html[data-mode="hacker"] .about-text,
html[data-mode="hacker"] .project-card,
html[data-mode="hacker"] .skill-chip {
  box-shadow: inset 0 0 0 1px rgba(24, 255, 140, 0.2), 0 0 26px rgba(24, 255, 140, 0.14);
}

html[data-mode="hacker"] .hero-copy h1,
html[data-mode="hacker"] h2 {
  text-shadow: 0 0 13px rgba(24, 255, 140, 0.45);
}

@keyframes drift {
  from {
    transform: translateY(0px);
  }
  to {
    transform: translateY(-8px);
  }
}

@keyframes glitchA {
  0%,
  100% {
    transform: translate(1px, -1px);
  }
  35% {
    transform: translate(-2px, 1px);
  }
  70% {
    transform: translate(2px, 0);
  }
}

@keyframes glitchB {
  0%,
  100% {
    transform: translate(-1px, 1px);
  }
  45% {
    transform: translate(1px, -1px);
  }
  80% {
    transform: translate(-2px, 0);
  }
}

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

@keyframes switchJitter {
  0% {
    transform: translate(0, 0);
    filter: none;
  }
  15% {
    transform: translate(-2px, 2px) skewX(-1deg);
    filter: contrast(1.2) saturate(1.25);
  }
  35% {
    transform: translate(4px, -2px) skewX(1.4deg);
    filter: contrast(1.45) saturate(1.45);
  }
  55% {
    transform: translate(-3px, 1px) skewX(-1.1deg);
    filter: contrast(1.35) saturate(1.35);
  }
  75% {
    transform: translate(2px, -1px) skewX(0.9deg);
    filter: contrast(1.25) saturate(1.25);
  }
  100% {
    transform: translate(0, 0);
    filter: none;
  }
}

@keyframes switchChromatic {
  0% {
    text-shadow: none;
  }
  25% {
    text-shadow: -2px 0 rgba(24, 255, 140, 0.92), 2px 0 rgba(67, 255, 198, 0.72);
  }
  50% {
    text-shadow: 2px 0 rgba(24, 255, 140, 0.95), -3px 0 rgba(67, 255, 198, 0.7);
  }
  75% {
    text-shadow: -2px 0 rgba(24, 255, 140, 0.9), 1px 0 rgba(67, 255, 198, 0.68);
  }
  100% {
    text-shadow: none;
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .about-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
  }
}

@media (max-width: 520px) {
  .section {
    padding: 4.5rem 0;
  }

  .mode-label {
    display: none;
  }

  .section.is-defocused,
  .section.is-focused {
    filter: none;
    opacity: 1;
  }
}