/* =====================================================================
   styles.css
   Order: variables → base → sidebar → layout → hero → projects → project
          page + slider → stack → lists → footer → palette → reveal →
          responsive → accessibility

   Type system: Instrument Serif = name, project titles & big email,
                Inter Tight = all body/UI text,
                JetBrains Mono = small labels only (.micro, dates, clock)
   Color: monochrome + ONE accent family (blue-led gradient, --accent*)
   ===================================================================== */

/* ===== THEME VARIABLES ===== */
:root {
  --bg: #0a0a0a; /* page background */
  --fg: #f5f5f5; /* main text */
  --mute: #8a8a8a; /* secondary text */
  --line: rgba(255, 255, 255, 0.1); /* borders */
  --card: #101010; /* card background */
  --ph: #1a2a3b; /* placeholder slide color (dark blue) */
  /* accent: mostly blue, with a small warm hint at the top (like the logo) */
  --accent: #4f8cff;
  --accent-grad: linear-gradient(
    180deg,
    #ee6a4d 0%,
    #f0a24f 12%,
    #8fc27a 26%,
    #4f8cff 48%,
    #3b6ee8 100%
  );
  /* hovered text: horizontal gradient, blue-led with the warm tip at the end */
  --text-grad: linear-gradient(
    90deg,
    #3b6ee8 0%,
    #4f8cff 40%,
    #8fc27a 68%,
    #f0a24f 86%,
    #ee6a4d 100%
  );
  --glow-op: 0.5; /* strength of the hover glow on project cards */
  /* the line that draws in above each section: warm tip, blue body, fades out */
  --line-grad: linear-gradient(
    90deg,
    #ee6a4d 0%,
    #f0a24f 5%,
    #8fc27a 10%,
    #4f8cff 24%,
    #3b6ee8 50%,
    transparent 100%
  );
  --display: "Instrument Serif", Georgia, serif;
  --sans: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --side: 224px; /* sidebar width (0 on mobile) */
  --wrap: 960px; /* max width of the page content */
  --gutter: 64px; /* side padding inside that width */
  /* left edge shared by the hero text and the content below it */
  --edge: max(var(--gutter), calc((100% - var(--wrap)) / 2 + var(--gutter)));
  --photo-h: 78vh; /* hero photo height */
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: dark;
}

/* Follow the OS light mode, unless the user manually picked dark */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f4f2;
    --fg: #111;
    --mute: #666;
    --line: rgba(0, 0, 0, 0.1);
    --card: #ecece9;
    --ph: #dbe6f5;
    --accent: #2563eb;
    --text-grad: linear-gradient(
      90deg,
      #1d4ed8 0%,
      #2563eb 40%,
      #3f9b63 68%,
      #e08a2c 86%,
      #dc4a30 100%
    );
    --glow-op: 0.38;
    color-scheme: light;
  }
}
/* Manual choice from the theme button (data-theme set in main.js) */
:root[data-theme="light"] {
  --bg: #f4f4f2;
  --fg: #111;
  --mute: #666;
  --line: rgba(0, 0, 0, 0.1);
  --card: #ecece9;
  --ph: #dbe6f5;
  --accent: #2563eb;
  --text-grad: linear-gradient(
    90deg,
    #1d4ed8 0%,
    #2563eb 40%,
    #3f9b63 68%,
    #e08a2c 86%,
    #dc4a30 100%
  );
  --glow-op: 0.38;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --fg: #f5f5f5;
  --mute: #8a8a8a;
  --line: rgba(255, 255, 255, 0.1);
  --card: #101010;
  --ph: #1a2a3b;
  --accent: #4f8cff;
  --text-grad: linear-gradient(
    90deg,
    #3b6ee8 0%,
    #4f8cff 40%,
    #8fc27a 68%,
    #f0a24f 86%,
    #ee6a4d 100%
  );
  --glow-op: 0.5;
  color-scheme: dark;
}

/* ===== BASE ===== */
* {
  box-sizing: border-box;
  margin: 0;
}
html {
  scroll-behavior: smooth; /* fallback if Lenis isn't running */
  scroll-padding-top: 24px;
}
/* Lenis (smooth scroll) needs these; it handles the easing itself */
html.lenis,
html.lenis body {
  height: auto;
}
html.lenis {
  scroll-behavior: auto !important;
}
.lenis [data-lenis-prevent] {
  overscroll-behavior: contain;
}
/* while a project page is open, the page behind it can't scroll */
html.no-scroll {
  overflow: hidden;
}
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
[hidden] {
  display: none !important; /* so hidden elements stay hidden */
}
:focus-visible {
  outline: 2px solid var(--fg);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ===== UTILITY CLASSES ===== */
.mono {
  font-family: var(--mono);
}
/* small uppercase labels (the only place mono is used for text) */
.micro {
  font: 400 10.5px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}
/* links: on hover the text turns into the gradient and a gradient underline grows.
   Two background layers: [underline, text-shaped gradient] */
.ul {
  background-image: var(--text-grad), none;
  background-position:
    0 100%,
    0 0;
  background-size:
    0 1px,
    100% 100%;
  background-repeat: no-repeat;
  -webkit-background-clip: border-box, text;
  background-clip: border-box, text;
  transition:
    background-size 0.3s,
    color 0.25s;
}
.ul:hover {
  background-image: var(--text-grad), var(--text-grad);
  background-size:
    100% 1px,
    100% 100%;
  color: transparent; /* lets the gradient show through the letters */
}
/* other hovered text (sidebar nav, project titles, list rows): gradient text */
aside nav a:hover,
.card:hover h3,
.list a:hover span {
  background-image: var(--text-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.btn {
  font: 400 12.5px var(--sans);
  border: 1px solid var(--line);
  background: none;
  color: var(--fg);
  padding: 9px 14px;
  border-radius: 99px;
  cursor: pointer;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  transition: border-color 0.2s;
}
.btn:hover {
  border-color: var(--mute);
}
.btn span {
  font: 400 11px var(--mono);
  color: var(--mute);
}
.links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
/* status pill with a small gradient dot (used on cards and the project page) */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 400 11px var(--sans);
  letter-spacing: 0;
  text-transform: none;
  color: var(--mute);
}
.pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-grad);
}

/* ===== SIDEBAR =====
   Four groups, separated by hairlines: brand | nav (stretches) | tools | contact */
aside {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--side);
  padding: calc(32px + env(safe-area-inset-top, 0px)) 24px 28px;
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  z-index: 30;
  font-size: 13px;
}
.side-brand {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.brand {
  font: 500 15px var(--sans);
  color: var(--fg);
  margin-bottom: 6px;
}
aside nav {
  flex: 1; /* takes the leftover space, so spacing stays balanced */
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 28px 0;
  color: var(--mute);
}
aside nav a {
  align-self: flex-start; /* so the gradient spans just the word */
  transition: color 0.25s;
}
.side-tools {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.side-tools .btn {
  width: 100%;
}
.side-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--mute);
}
.side-contact a {
  overflow-wrap: anywhere;
  width: max-content;
  max-width: 100%;
}
#burger {
  display: none; /* only shown on mobile */
}

/* ===== PAGE LAYOUT ===== */
main {
  margin-left: var(--side);
}
/* content below the hero: centered, max 960px, same left edge as the hero text */
.col {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section {
  margin-top: 104px;
}
/* section label row: "01 — projects" on the left, optional link on the right */
.sec-head {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-top: 18px;
  margin-bottom: 24px;
}
/* base hairline above the label */
.sec-head::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line);
}
/* gradient line that draws left → right when the section scrolls into view
   (main.js adds .in). Same for the footer's top line. */
.sec-head::after,
footer::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-grad);
  clip-path: inset(0 100% 0 0);
  transition: clip-path 1.8s cubic-bezier(0.16, 1, 0.3, 1); /* soft expo-out */
  pointer-events: none;
}
.sec-head::after {
  top: 0;
}
footer::after {
  top: -1px;
}
.sec-head.in::after,
footer.in::after {
  clip-path: inset(0);
}
/* section label: a band of the gradient sweeps across the text once, then it settles */
.sec-head h2 {
  background-image: linear-gradient(
    90deg,
    var(--mute) 42%,
    #3b6ee8 46%,
    #4f8cff 50%,
    #8fc27a 53%,
    #f0a24f 56%,
    var(--mute) 60%
  );
  background-size: 300% 100%;
  background-position: 100% 0;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.sec-head.in h2 {
  animation: sweep 2s 0.3s cubic-bezier(0.4, 0, 0.2, 1) both;
}
@keyframes sweep {
  from {
    background-position: 100% 0;
  }
  to {
    background-position: 0% 0;
  }
}

/* ===== HERO =====
   Text sits bottom-left; the photo is anchored bottom-right and bleeds off the edge. */
.hero {
  margin-top: 0;
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  padding-left: var(--edge);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto; /* text | photo: they never overlap */
  align-items: end;
  overflow: hidden;
}
.intro {
  grid-column: 1;
  grid-row: 1;
  position: relative;
  z-index: 3; /* text stays above the photo and the bottom fade */
  padding: 0 32px 72px 0;
}
.photo {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  z-index: 1;
}
.photo img {
  display: block;
  height: var(--photo-h);
  width: auto;
  max-width: 52vw;
  object-fit: contain;
  object-position: bottom right;
  filter: grayscale(1);
}
.photo svg {
  display: block;
  height: var(--photo-h);
  width: auto;
  aspect-ratio: 3/4;
}
/* fade to the page color at the bottom, so the photo doesn't look cut off */
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(140px, 26vh, 300px);
  background: linear-gradient(to top, var(--bg) 6%, transparent);
  pointer-events: none;
  z-index: 2;
}
.intro h1 {
  font: 400 clamp(3rem, 6.5vw, 6.5rem) / 0.95 var(--display);
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.intro .links {
  margin-top: 20px;
  font-size: 13px;
  color: var(--mute);
}
.intro p {
  margin-top: 32px;
  max-width: 32rem;
  line-height: 1.65;
  color: var(--mute);
}
/* community "logos" (text for now) */
.logos {
  display: flex;
  flex-wrap: nowrap; /* AWS, GDG and n8n always stay on one line */
  gap: clamp(20px, 3.2vw, 40px);
  margin-top: 44px;
}
.logos div {
  flex: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.logos b {
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  font-weight: 600;
  opacity: 0.9;
}
.logos .micro {
  font-size: 8.5px;
}

/* ===== PROJECTS (list on the home page) =====
   3 equal cards per row. No lift/glow: hover only turns the border blue. */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.card {
  position: relative;
  overflow: hidden; /* keeps the glow inside the rounded corners */
  isolation: isolate;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 280px;
}
/* hover glow: two blurred gradient orbs that fade in when the card is hovered and
   ease toward the cursor (main.js updates --mx / --my while hovering).
   Moved with transform, so it stays smooth. */
.card::before,
.card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  z-index: -1; /* behind the card text */
  border-radius: 50%;
  transform: translate3d(var(--mx, 50%), var(--my, 50%), 0)
    translate(-50%, -50%);
  will-change: transform, opacity;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.7s ease;
}
/* core: the logo gradient */
.card::before {
  width: 240px;
  height: 240px;
  background: linear-gradient(
    135deg,
    #ee6a4d 0%,
    #f0a24f 14%,
    #8fc27a 28%,
    #4f8cff 50%,
    #3b6ee8 100%
  );
  filter: blur(42px);
}
/* soft wide blue halo around it */
.card::after {
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, #4f8cff 0%, transparent 65%);
  filter: blur(30px);
}
.card:hover::before {
  opacity: var(--glow-op);
}
.card:hover::after {
  opacity: calc(var(--glow-op) * 0.35);
}
/* preview area: first screenshot if set, else a plain striped placeholder */
.pv {
  flex: 1;
  min-height: 110px;
  border-radius: 8px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: repeating-linear-gradient(
    45deg,
    var(--line) 0 1px,
    transparent 1px 9px
  );
}
.pv img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}
.card h3 {
  width: fit-content;
  max-width: 100%;
  transition: color 0.25s;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.card p {
  font-size: 13px;
  color: var(--mute);
}
.cardtop {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/* "See all projects" button */
.more {
  margin-top: 20px;
}

/* ===== PROJECT PAGE =====
   Opens over the content (the sidebar stays visible).
   Left: name, description, tech stack at the bottom. Right: square image slider. */
.project {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: var(--side);
  z-index: 25; /* under the sidebar / mobile menu button */
  background: var(--bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  padding: 96px var(--gutter) 56px;
}
.pback {
  position: fixed;
  top: calc(28px + env(safe-area-inset-top, 0px));
  left: calc(var(--side) + var(--gutter));
  z-index: 2;
}
.pgrid {
  margin: auto; /* centers vertically, and scrolls safely if content is tall */
  width: 100%;
  max-width: 1040px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: stretch;
}
.pinfo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}
.pmeta {
  display: flex;
  gap: 16px;
  align-items: center;
}
.pinfo h2 {
  font: 400 clamp(2.4rem, 4.4vw, 4rem) / 1 var(--display);
  letter-spacing: -0.02em;
}
.pinfo p {
  max-width: 30rem;
  line-height: 1.65;
  color: var(--mute);
}
.plink {
  font-size: 13px;
}
/* tech stack sits at the bottom of the left column */
.pstack {
  margin-top: auto;
  padding-top: 48px;
}
.ghost {
  opacity: 0.35; /* placeholder chips until you fill in stack: [] */
}

/* vertical image slider */
.slider {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1;
  justify-self: end;
  border-radius: 14px;
  overflow: hidden;
  background: var(--ph);
  border: 1px solid var(--line);
}
.track {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  transition: transform 0.9s cubic-bezier(0.65, 0, 0.35, 1);
  will-change: transform;
}
.track.snap {
  transition: none; /* used for the invisible jump back to the first slide */
}
.slide {
  flex: 0 0 100%; /* each slide fills the slider exactly */
  position: relative;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* placeholder slide: dark blue box with text (replace by adding images in data.js) */
.slide.ph {
  display: grid;
  place-items: center;
  font: 400 clamp(1.4rem, 3vw, 2.2rem) var(--sans);
  background: var(--ph);
}
.slide.ph:nth-child(2) {
  background: color-mix(in srgb, var(--accent) 14%, var(--ph));
}
.slide.ph:nth-child(3) {
  background: color-mix(in srgb, var(--accent) 26%, var(--ph));
}
/* dots on the right edge: the active one stretches and shows the gradient */
.dots {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.dots button {
  width: 6px;
  height: 6px;
  padding: 0;
  border: 0;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition:
    height 0.3s,
    background 0.3s;
}
.dots button.on {
  height: 22px;
  background: var(--accent-grad);
}

/* ===== STACK + TAGS ===== */
.stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 32px 28px;
}
.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.tags span {
  font-size: 12.5px;
  border: 1px solid var(--line);
  padding: 5px 10px;
  border-radius: 6px;
}

/* ===== LIST ROWS (certifications, writing) ===== */
.list a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s;
}
.list a:first-child {
  border-top: 1px solid var(--line);
}
.list a span {
  transition: color 0.25s;
}
.list .mono {
  color: var(--mute);
  font-size: 11.5px;
}

/* ===== FOOTER ===== */
footer {
  position: relative;
  margin-top: 104px;
  padding: 48px 0 40px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.mail {
  font: 400 clamp(1.8rem, 4vw, 3rem) / 1.1 var(--display);
  letter-spacing: -0.01em;
  width: max-content;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.fr {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--mute);
}

/* ===== COMMAND PALETTE ===== */
/* full-screen backdrop, hidden until .on is added */
#pal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 18vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 80;
}
#pal.on {
  display: flex;
}
/* the box in the middle */
#pal div {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 14px;
  width: min(420px, 90vw);
  padding: 8px;
}
#pal button {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  color: var(--fg);
  font: 14px var(--sans);
  padding: 11px 12px;
  border-radius: 8px;
  cursor: pointer;
}
#pal button:hover,
#pal button:focus-visible {
  background: var(--card);
}

/* ===== SCROLL REVEAL ===== */
/* .rv elements start hidden; main.js adds .in when they scroll into view */
.rv {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.8s,
    transform 0.8s;
}
.rv.in {
  opacity: 1;
  transform: none;
}

/* ===== RESPONSIVE ===== */
/* smaller laptops: shrink the photo so it doesn't crowd the name */
@media (max-width: 1280px) {
  :root {
    --photo-h: 64vh;
  }
}

/* tablet & mobile: sidebar becomes a slide-in drawer */
@media (max-width: 1023px) {
  :root {
    --side: 0px;
    --gutter: 32px;
  }
  aside {
    transform: translateX(-100%);
    transition: transform 0.3s;
    width: 240px;
  }
  aside.open {
    transform: none;
  }
  #burger {
    display: block;
    position: fixed;
    right: 16px;
    top: calc(12px + env(safe-area-inset-top, 0px));
    z-index: 40;
    background: var(--bg);
  }
  .pback {
    top: calc(12px + env(safe-area-inset-top, 0px));
  }
  section {
    margin-top: 80px;
  }
}

/* project page: stack into one column (slider on top) */
@media (max-width: 860px) {
  .pgrid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .slider {
    order: -1;
    max-width: none;
    justify-self: stretch;
  }
  .pstack {
    padding-top: 8px;
  }
}

/* small screens: hero stacks (photo on top, text below), projects one column */
@media (max-width: 760px) {
  :root {
    --gutter: 20px;
    --photo-h: 44vh;
  }
  .hero {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    padding: 80px var(--gutter) 0;
    gap: 24px;
  }
  .intro {
    padding: 0 0 48px;
  }
  .photo {
    align-self: flex-end;
    margin-right: calc(
      var(--gutter) * -1
    ); /* keep the bleed off the right edge */
  }
  .intro h1 {
    white-space: normal;
  }
  .bento {
    grid-template-columns: 1fr;
  }
  .card {
    min-height: 240px;
  }
}

/* ===== ACCESSIBILITY ===== */
/* users who prefer less motion: turn off animations and show everything */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
  .rv {
    opacity: 1;
    transform: none;
  }
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .sec-head::after,
  footer::after {
    clip-path: inset(0);
  }
}

/* =====================================================================
   STAR BUDDY ("Lumi") — the floating star + its chat (see buddy.js)
   ===================================================================== */
/* the star's anchor point (moved by JS); everything is centered on it */
.buddy {
  position: fixed;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  z-index: 60;
  --bs: 52px; /* star size */
  pointer-events: none;
}
.buddy-star {
  position: absolute;
  left: calc(var(--bs) / -2);
  top: calc(var(--bs) / -2);
  width: var(--bs);
  height: var(--bs);
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  pointer-events: auto;
  touch-action: manipulation;
  will-change: transform;
}
.buddy-star svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 10px rgba(79, 140, 255, 0.55))
    drop-shadow(0 0 2px rgba(238, 106, 77, 0.35));
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.buddy-star:hover svg {
  transform: scale(1.16);
}
.buddy-star:active svg {
  transform: scale(0.88);
}

/* faces: idle (open eyes), happy (^ ^), sleep (— —), wow (big eyes) */
.buddy-star .f-happy,
.buddy-star .f-sleep {
  display: none;
}
.buddy-star.m-happy .f-eyes,
.buddy-star.m-sleep .f-eyes {
  display: none;
}
.buddy-star.m-happy .f-happy,
.buddy-star.m-sleep .f-sleep {
  display: inline;
}
.buddy-star .eye {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.07s;
}
.buddy-star.blink .eye {
  transform: scaleY(0.08);
}
.buddy-star.m-wow .eye {
  transform: scale(1.3);
}
.zzz {
  position: absolute;
  right: -6px;
  top: -10px;
  font: 600 13px var(--sans);
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.zzz i {
  font-style: normal;
  font-size: 10px;
  margin-left: 2px;
}
.buddy-star.asleep .zzz {
  opacity: 1;
  animation: zzz 2.4s ease-in-out infinite;
}
@keyframes zzz {
  50% {
    transform: translate(3px, -6px);
  }
}

/* speech bubble (same look as the reference: light card, name in gray) */
.buddy-bubble {
  position: absolute;
  right: calc(var(--bs) / 2 + 14px);
  top: 0;
  width: max-content;
  max-width: min(270px, calc(100vw - 120px));
  padding: 11px 16px 13px;
  border-radius: 18px;
  background: var(--fg);
  color: var(--bg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  opacity: 0;
  pointer-events: none;
  cursor: pointer;
  transform: translateY(-50%) scale(0.85);
  transform-origin: right center;
  transition:
    opacity 0.25s,
    transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.buddy-bubble.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(-50%) scale(1);
}
.buddy-bubble .who {
  font: 600 13px var(--sans);
  opacity: 0.55;
  margin-bottom: 2px;
}
.buddy-bubble .said {
  font: 500 15px/1.35 var(--sans);
}

/* sparkles it sheds while moving */
.spark {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 59;
  pointer-events: none;
  background: var(--c);
  clip-path: polygon(
    50% 0,
    61% 39%,
    100% 50%,
    61% 61%,
    50% 100%,
    39% 61%,
    0 50%,
    39% 39%
  );
  transform: translate(var(--sx), var(--sy));
  animation: spark 0.85s ease-out forwards;
}
@keyframes spark {
  from {
    opacity: 0.9;
    transform: translate(var(--sx), var(--sy)) scale(1) rotate(0deg);
  }
  to {
    opacity: 0;
    transform: translate(
        calc(var(--sx) + var(--dx)),
        calc(var(--sy) + var(--dy))
      )
      scale(0) rotate(120deg);
  }
}

/* chat panel */
.bchat {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 58; /* under the star, so the star can sit in its header */
  width: 360px;
  height: min(540px, calc(100vh - 120px));
  display: flex;
  flex-direction: column;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: translateY(14px) scale(0.94);
  transform-origin: bottom right;
  transition:
    opacity 0.3s ease,
    transform 0.5s cubic-bezier(0.34, 1.3, 0.64, 1);
}
.bchat.on {
  opacity: 1;
  transform: none;
}
/* soft gradient haze behind the header */
.bchat::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -90px;
  left: -70px;
  width: 300px;
  height: 220px;
  background:
    radial-gradient(
      circle at 35% 45%,
      rgba(79, 140, 255, 0.4),
      transparent 62%
    ),
    radial-gradient(circle at 70% 65%, rgba(240, 162, 79, 0.2), transparent 60%);
  filter: blur(24px);
  pointer-events: none;
}
.bchat header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.bslot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  flex: none;
  background: color-mix(
    in srgb,
    var(--accent) 12%,
    transparent
  ); /* the star lands here */
}
.btitle {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.btitle b {
  font: 500 15px var(--sans);
}
.bclose {
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--mute);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}
.bclose:hover {
  background: var(--card);
}
.bmsgs {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
}
.bmsg {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}
.bmsg.bot {
  align-self: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-bottom-left-radius: 6px;
}
.bmsg.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #3b6ee8, #4f8cff);
  color: #fff;
  border-bottom-right-radius: 6px;
}
.bmsg.typing {
  display: flex;
  gap: 4px;
  padding: 14px;
}
.bmsg.typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mute);
  animation: dot 1s ease-in-out infinite;
}
.bmsg.typing i:nth-child(2) {
  animation-delay: 0.15s;
}
.bmsg.typing i:nth-child(3) {
  animation-delay: 0.3s;
}
@keyframes dot {
  50% {
    transform: translateY(-4px);
    opacity: 0.5;
  }
}
.bacts {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.bact {
  font: 500 12px var(--sans);
  padding: 6px 11px;
  border-radius: 99px;
  border: 1px solid var(--line);
  background: none;
  color: var(--fg);
  cursor: pointer;
  transition: border-color 0.2s;
}
.bact:hover {
  border-color: var(--accent);
}
.bchips {
  display: flex;
  gap: 8px;
  padding: 0 16px 10px;
  overflow-x: auto;
  scrollbar-width: none;
}
.bchips::-webkit-scrollbar {
  display: none;
}
.bchips button {
  flex: none;
  font: 400 12.5px var(--sans);
  padding: 7px 12px;
  border-radius: 99px;
  border: 1px solid var(--line);
  background: none;
  color: var(--mute);
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.bchips button:hover {
  color: var(--fg);
  border-color: var(--accent);
}
.bform {
  display: flex;
  gap: 8px;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--line);
}
.bform input {
  flex: 1;
  min-width: 0;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 99px;
  background: var(--card);
  color: var(--fg);
  font: 14px var(--sans);
  outline: none;
  transition: border-color 0.2s;
}
.bform input:focus {
  border-color: var(--accent);
}
.bform button {
  width: 42px;
  height: 42px;
  flex: none;
  border: 0;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b6ee8, #4f8cff);
  color: #fff;
  font-size: 17px;
  cursor: pointer;
}

@media (max-width: 760px) {
  .buddy {
    --bs: 44px;
  }
  .bchat {
    left: 12px;
    right: 12px;
    bottom: 12px;
    width: auto;
    height: min(72vh, 560px);
  }
  .bform input {
    font-size: 16px; /* stops iOS from zooming in */
  }
}