/* =========================================================
   thistechguyflo / lab — styles
   Sleek dark + glow. Vanilla CSS, no build step.
   ========================================================= */

:root {
  --bg: #07070b;
  --bg-2: #0b0c13;
  --text: #ecedf6;
  --muted: #9a9bb4;
  --border: rgba(255, 255, 255, 0.09);
  --panel: rgba(255, 255, 255, 0.035);

  --accent: #e08453;
  --accent-2: #8b6cff;
  --glow: color-mix(in srgb, var(--accent) 55%, transparent);

  --radius: 20px;
  --wrap: 1120px;
  --ease: cubic-bezier(0.22, 0.7, 0.24, 1);
  --font: "Inter var", "Inter", ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  margin: 0 0 0.5em;
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 700;
}

p {
  margin: 0 0 1rem;
}

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

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15em 0.4em;
  border-radius: 6px;
}

::selection {
  background: color-mix(in srgb, var(--accent) 40%, transparent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent);
  color: #150c07;
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus {
  transform: none;
}

/* ---------- background mesh ---------- */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: radial-gradient(120% 80% at 50% -10%, var(--bg-2), var(--bg) 60%);
}
.blob {
  position: absolute;
  width: 46vmax;
  height: 46vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.42;
  will-change: transform;
}
.b1 {
  top: -18vmax;
  left: -12vmax;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 65%);
}
.b2 {
  bottom: -22vmax;
  right: -14vmax;
  background: radial-gradient(circle at 60% 40%, var(--accent-2), transparent 65%);
}
.b3 {
  top: 34%;
  left: 40%;
  width: 34vmax;
  height: 34vmax;
  opacity: 0.28;
  background: radial-gradient(circle at 50% 50%, #ffffff, transparent 70%);
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(100% 60% at 50% 0%, #000 40%, transparent 100%);
}

/* ---------- custom cursor ---------- */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 26px;
  height: 26px;
  margin: -13px 0 0 -13px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 150;
  background: radial-gradient(circle, var(--glow), transparent 70%);
  mix-blend-mode: screen;
  transition: width 0.2s var(--ease), height 0.2s var(--ease),
    opacity 0.3s var(--ease);
  opacity: 0;
}
.cursor.is-visible {
  opacity: 1;
}
.cursor.is-active {
  width: 52px;
  height: 52px;
  margin: -26px 0 0 -26px;
}
body.no-cursor .cursor {
  display: none;
}

/* ---------- header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 22px -2px var(--glow);
}
.brand-text b {
  color: var(--accent);
}
.brand-text i {
  color: var(--muted);
  font-style: normal;
  margin-left: 6px;
  font-weight: 400;
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}
.nav a:not(.btn) {
  color: var(--muted);
  transition: color 0.2s var(--ease);
}
.nav a:not(.btn):hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 8px 24px 20px;
  gap: 4px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.mobile-nav a {
  padding: 12px 6px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}
.mobile-nav a:last-child {
  border-bottom: 0;
}

/* ---------- buttons ---------- */
.btn {
  --_bg: transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--_bg);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), border-color 0.25s var(--ease);
  will-change: transform;
}
.btn-sm {
  padding: 0.6rem 1.05rem;
  font-size: 0.88rem;
}
.btn-primary {
  --_bg: linear-gradient(120deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #160d08;
  box-shadow: 0 10px 34px -10px var(--glow);
}
.btn-primary:hover {
  box-shadow: 0 16px 48px -8px var(--glow);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}
.btn:active {
  transform: translateY(1px) scale(0.99);
}
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------- panels ---------- */
.panel {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.018)
  );
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 90px 0 120px;
  overflow: hidden;
}
.neural {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.hero-inner {
  max-width: 780px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--panel);
}
.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px 1px var(--accent);
}
.hero-title {
  font-size: clamp(2.7rem, 7.5vw, 5.4rem);
  letter-spacing: -0.035em;
  margin: 0.5em 0 0.35em;
}
.grad {
  background: linear-gradient(
    120deg,
    var(--accent),
    var(--accent-2) 55%,
    #fff 110%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--muted);
  max-width: 40ch;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 2rem 0 1.5rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}
.hero-meta .sep {
  opacity: 0.4;
}
.scroll-cue {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--border);
  border-radius: 14px;
}
.scroll-cue span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--accent);
  animation: cue 1.8s var(--ease) infinite;
}
@keyframes cue {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
  }
  60% {
    opacity: 0;
    transform: translateY(14px);
  }
  100% {
    opacity: 0;
  }
}

/* ---------- stats band ---------- */
.stats-band {
  border-block: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-2) 60%, transparent);
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-block: 34px;
  text-align: center;
}
.stats b {
  display: block;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stats span {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- sections ---------- */
.section {
  padding: clamp(72px, 12vh, 130px) 0;
  scroll-margin-top: 88px;
}
.section-head {
  max-width: 620px;
  margin-bottom: 48px;
}
.kicker {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.section-head h2 {
  font-size: clamp(1.9rem, 4.4vw, 3rem);
}
.lead {
  color: var(--muted);
  font-size: 1.05rem;
}

/* ---------- playground console ---------- */
.console {
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 0;
  overflow: hidden;
}
.console-canvas {
  position: relative;
  border-right: 1px solid var(--border);
  background: radial-gradient(
    120% 120% at 50% 0%,
    color-mix(in srgb, var(--accent) 10%, transparent),
    transparent 70%
  );
}
.console-canvas canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.console-status {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.console-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stream {
  min-height: 230px;
  max-height: 340px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-right: 6px;
}
.msg {
  max-width: 90%;
  padding: 12px 15px;
  border-radius: 14px;
  font-size: 0.95rem;
  margin: 0;
}
.msg.user {
  align-self: flex-end;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #160d08;
  border-bottom-right-radius: 4px;
}
.msg.bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-bottom-left-radius: 4px;
}
.msg.bot.intro {
  color: var(--muted);
}
.caret::after {
  content: "▍";
  margin-left: 1px;
  animation: blink 1s steps(1) infinite;
  color: var(--accent);
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
.dots span {
  display: inline-block;
  animation: dots 1.2s var(--ease) infinite;
}
.dots span:nth-child(2) {
  animation-delay: 0.15s;
}
.dots span:nth-child(3) {
  animation-delay: 0.3s;
}
@keyframes dots {
  0%,
  60%,
  100% {
    opacity: 0.25;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}
.prompt {
  display: flex;
  gap: 10px;
}
.prompt input {
  flex: 1;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
}
.prompt input::placeholder {
  color: color-mix(in srgb, var(--muted) 75%, transparent);
}
.prompt input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}
.chip:hover {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: rgba(255, 255, 255, 0.03);
}

/* ---------- toys ---------- */
.toy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 20px;
}
.toy {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toy h3 {
  font-size: 1.15rem;
}
.toy p {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}
.toy-stage {
  margin-top: auto;
  position: relative;
  height: 172px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.toy-stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.toy-stage.forge,
.toy-stage.ping,
.toy-stage.seed {
  padding: 16px;
}
.swatches {
  display: flex;
  gap: 10px;
  z-index: 1;
}
.sw {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: linear-gradient(135deg, var(--p), var(--q));
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}
.sw:hover {
  transform: scale(1.12);
}
.sw[aria-pressed="true"] {
  border-color: #fff;
  transform: scale(1.12);
}
.slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  z-index: 1;
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}
.seed input {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.4);
  color: var(--text);
  font: inherit;
  text-align: center;
}
.seed input:focus {
  outline: none;
  border-color: var(--accent);
}
.gauge {
  position: relative;
  width: 120px;
  height: 62px;
  border-radius: 120px 120px 0 0;
  border: 2px solid var(--border);
  border-bottom: none;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.needle {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 2px;
  height: 52px;
  background: var(--accent);
  transform-origin: bottom center;
  transform: rotate(-80deg);
  transition: transform 0.5s var(--ease);
  box-shadow: 0 0 10px 1px var(--glow);
}
#ping-read {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 4px;
}

/* ---------- build ---------- */
.build-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}
.stack-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stack-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.stack-list b {
  display: inline-block;
  min-width: 118px;
  color: var(--text);
}
pre {
  margin: 0;
  padding: 20px;
  background: #0a0a12;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #cdd0e6;
}
.c-com {
  color: #6b7089;
}
.c-key {
  color: var(--accent);
}

/* ---------- about ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
.about-text h2 {
  font-size: clamp(1.9rem, 4.4vw, 3rem);
}
.about-text p {
  color: var(--muted);
}
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.link-pill {
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 600;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease),
    transform 0.2s var(--ease);
  will-change: transform;
}
.link-pill:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: rgba(255, 255, 255, 0.04);
}
.about-card {
  height: 300px;
  overflow: hidden;
}
.about-card canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* ---------- cta band ---------- */
.cta-band {
  padding: clamp(70px, 12vh, 120px) 0;
  text-align: center;
  border-top: 1px solid var(--border);
  background: radial-gradient(
    100% 140% at 50% 100%,
    color-mix(in srgb, var(--accent) 12%, transparent),
    transparent 65%
  );
}
.cta-band h2 {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
}
.cta-band p {
  color: var(--muted);
  margin-bottom: 1.8rem;
}

/* ---------- footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 30px 0;
  color: var(--muted);
  font-size: 0.85rem;
}
.footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.footer .sep {
  opacity: 0.4;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
  }
  .build-cols {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 820px) {
  .nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .console {
    grid-template-columns: 1fr;
  }
  .console-canvas {
    height: 120px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 28px;
  }
}
@media (max-width: 480px) {
  .msg {
    max-width: 100%;
  }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .scroll-cue span {
    display: none;
  }
}