:root {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --card: rgba(15, 31, 51, 0.78);
  --card-solid: #0f1f33;
  --line: rgba(156, 183, 214, 0.16);
  --text: #f4f8fc;
  --muted: #9caec2;
  --cyan: #52e6cf;
  --violet: #a98bff;
  --font-body: "DM Sans", sans-serif;
  --font-display: "Space Grotesk", sans-serif;
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 12%, rgba(101, 73, 187, 0.18), transparent 27rem),
    radial-gradient(circle at 8% 45%, rgba(36, 185, 168, 0.09), transparent 28rem),
    var(--bg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
}

.fluid-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .92;
}

main, .site-footer { position: relative; z-index: 1; }

.page-noise {
  position: fixed;
  inset: 0;
  z-index: 10;
  opacity: .025;
  pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.7) .5px, transparent .6px);
  background-size: 5px 5px;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
.ui-arrow { position: relative; width: 12px; height: 12px; display: inline-block; flex: 0 0 auto; transform-origin: center; }
.ui-arrow::before { content: ""; position: absolute; left: 1px; top: 5px; width: 10px; height: 1.5px; border-radius: 2px; background: currentColor; }
.ui-arrow::after { content: ""; position: absolute; right: 0; top: 2.5px; width: 5px; height: 5px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(-45deg); }
.ui-arrow-ne { transform: rotate(-45deg); }
.ui-arrow-se { transform: rotate(45deg); }
.ui-arrow-left { transform: rotate(180deg); }
.ui-arrow-up { transform: rotate(-90deg); }
.section-shell { width: min(1160px, calc(100% - 44px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.site-header {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: 50%;
  width: min(1160px, calc(100% - 32px));
  min-height: 62px;
  padding: 10px 12px 10px 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(7, 17, 31, .72);
  backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transform: translateX(-50%);
  box-shadow: 0 12px 40px rgba(0,0,0,.12);
}

.brand { font: 700 24px/1 var(--font-display); letter-spacing: -.06em; }
.gradient-text { color: var(--cyan); }
.nav-links { display: flex; gap: 30px; color: var(--muted); font-size: 14px; font-weight: 600; }
.nav-links a { transition: color .25s ease; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }

.lang-btn, .icon-btn {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255,255,255,.05);
  cursor: pointer;
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}
.lang-btn { min-width: 48px; padding: 9px 12px; font-weight: 700; }
.lang-btn:hover, .icon-btn:hover { border-color: rgba(82,230,207,.55); background: rgba(82,230,207,.08); transform: translateY(-1px); }

.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 150px;
  padding-bottom: 90px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 70px;
}

.eyebrow, .section-index {
  color: var(--cyan);
  font: 700 12px/1.2 var(--font-display);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 6px rgba(82,230,207,.1), 0 0 18px var(--cyan); animation: pulse 2.2s ease-in-out infinite; }

.hero h1 { max-width: 820px; margin: 0; font: 600 clamp(3.4rem, 7vw, 6.8rem)/.96 var(--font-display); letter-spacing: -.065em; }
.hero h1 span { display: block; }
.gradient-text { background: linear-gradient(100deg, var(--cyan), #8ed8ff 48%, var(--violet)); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-lead { max-width: 650px; margin: 30px 0 0; color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.22rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn { min-height: 50px; padding: 12px 20px; border: 1px solid var(--line); border-radius: 13px; display: inline-flex; align-items: center; justify-content: center; gap: 16px; font-size: 14px; font-weight: 700; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.btn:hover { transform: translateY(-3px); }
.btn-primary { color: #06131a; border-color: var(--cyan); background: var(--cyan); box-shadow: 0 15px 38px rgba(82,230,207,.14); }
.btn-primary:hover { box-shadow: 0 18px 42px rgba(82,230,207,.24); }
.btn-secondary { background: rgba(255,255,255,.035); }
.btn-secondary:hover { border-color: rgba(255,255,255,.35); }

.hero-visual { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 65%; height: 65%; border-radius: 50%; background: radial-gradient(circle, rgba(82,230,207,.19), rgba(169,139,255,.08) 48%, transparent 70%); filter: blur(8px); }
.portrait-frame { position: relative; z-index: 2; width: min(68%, 310px); aspect-ratio: .77; padding: 7px; border: 1px solid rgba(82,230,207,.42); border-radius: 150px 150px 38px 38px; background: linear-gradient(145deg, rgba(82,230,207,.13), rgba(169,139,255,.13)); box-shadow: 0 28px 75px rgba(0,0,0,.3), 0 0 65px rgba(82,230,207,.09); overflow: hidden; }
.portrait-frame img { width: 100%; height: 100%; display: block; border-radius: inherit; object-fit: cover; object-position: 50% 18%; filter: saturate(.88) contrast(1.03); }
.orbit { position: absolute; border: 1px solid var(--line); border-radius: 50%; }
.orbit-one { width: 76%; height: 76%; animation: spin 24s linear infinite; }
.orbit-one::after { content: ""; position: absolute; top: 16%; left: 4%; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.orbit-two { width: 96%; height: 52%; transform: rotate(-25deg); border-color: rgba(169,139,255,.16); }
.floating-card { position: absolute; z-index: 3; padding: 10px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(11,23,40,.82); backdrop-filter: blur(12px); color: var(--muted); font-size: 12px; font-weight: 600; box-shadow: 0 12px 32px rgba(0,0,0,.18); animation: float 5s ease-in-out infinite; }
.floating-card span { margin-right: 7px; color: var(--cyan); }
.card-code { top: 16%; right: 0; }
.card-location { bottom: 17%; left: 0; animation-delay: -1.7s; }
.card-focus { right: 2%; bottom: 7%; animation-delay: -3s; }
.hero-chat-trigger { position: absolute; z-index: 5; left: 50%; bottom: -28px; width: min(370px, 92%); padding: 13px 15px; border: 1px solid rgba(82,230,207,.38); border-radius: 17px; background: rgba(9,22,37,.9); backdrop-filter: blur(16px); color: var(--text); display: grid; grid-template-columns: 44px 1fr 24px; gap: 11px; align-items: center; text-align: left; cursor: pointer; box-shadow: 0 20px 50px rgba(0,0,0,.3); transform: translateX(-50%); transition: border-color .25s ease, box-shadow .25s ease, bottom .25s ease; }
.hero-chat-trigger:hover { bottom: -23px; border-color: var(--cyan); box-shadow: 0 24px 55px rgba(0,0,0,.36), 0 0 30px rgba(82,230,207,.08); }
.hero-chat-avatar { width: 44px; height: 40px; border-radius: 12px; background: linear-gradient(135deg,var(--cyan),var(--violet)); color: #07131a; display: grid; place-items: center; font: 700 10px/1 var(--font-display); }
.hero-chat-trigger strong, .hero-chat-trigger small { display: block; }
.hero-chat-trigger strong { font-size: 13px; }
.hero-chat-trigger small { margin-top: 2px; color: var(--muted); font-size: 10px; }
.hero-chat-trigger b { color: var(--cyan); font-size: 18px; }
.scroll-cue { position: absolute; bottom: 28px; left: 0; display: flex; align-items: center; gap: 10px; color: #74869a; font: 700 10px/1 var(--font-display); letter-spacing: .14em; text-transform: uppercase; }
.scroll-cue span { display: block; width: 44px; height: 1px; background: #526579; }

.stats { border-block: 1px solid var(--line); padding: 26px 0; display: grid; grid-template-columns: repeat(4,1fr); }
.stats article { padding: 6px 26px; border-right: 1px solid var(--line); display: flex; align-items: center; gap: 14px; }
.stats article:first-child { padding-left: 0; }
.stats article:last-child { border: 0; }
.stats strong { color: var(--cyan); font: 600 28px/1 var(--font-display); }
.stats span { color: var(--muted); font-size: 13px; line-height: 1.3; }

.content-section { padding-top: 140px; }
.section-heading { max-width: 800px; margin-bottom: 64px; }
.section-index { margin: 0 0 18px; }
.section-heading h2, .chat-intro h2, .contact-strip h2 { margin: 0; font: 600 clamp(2.2rem, 4.5vw, 4.35rem)/1.06 var(--font-display); letter-spacing: -.05em; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: start; }
.about-copy { color: var(--muted); font-size: clamp(1.06rem, 1.7vw, 1.28rem); }
.about-copy p { margin: 0 0 22px; }
.about-copy p:first-child::first-letter { float: left; margin: 7px 10px 0 0; color: var(--cyan); font: 600 62px/.72 var(--font-display); }
.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; top: 8px; bottom: 8px; left: 6px; width: 1px; background: linear-gradient(var(--cyan), rgba(169,139,255,.25)); }
.timeline article { position: relative; padding: 0 0 42px 22px; }
.timeline article:last-child { padding-bottom: 0; }
.timeline-dot { position: absolute; top: 6px; left: -30px; width: 13px; height: 13px; border: 3px solid var(--bg); border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 1px var(--cyan); }
.timeline-date { margin: 0 0 8px; color: var(--cyan) !important; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.timeline h3 { margin: 0 0 4px; font: 600 20px/1.25 var(--font-display); }
.timeline p { margin: 0; color: var(--muted); }

.experience-list { border-top: 1px solid var(--line); }
.experience-card {
  position: relative;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 110px 54px 1fr;
  gap: 24px;
  align-items: start;
}
.experience-card.current-role { padding-inline: 22px; background: linear-gradient(90deg,rgba(82,230,207,.055),transparent 72%); }
.experience-card.current-role::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: var(--cyan); box-shadow: 0 0 18px rgba(82,230,207,.55); }
.experience-date span { display: block; color: var(--cyan); font: 700 13px/1 var(--font-display); }
.experience-date strong { display: block; margin-top: 9px; color: var(--muted); font-size: 12px; font-weight: 500; }
.company-mark { width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 14px; display: grid; place-items: center; font: 700 18px/1 var(--font-display); }
.vestel-mark { color: #ff4050; background: rgba(255,64,80,.1); }
.bms-mark { color: #57a8ff; background: rgba(65,151,255,.1); }
.geovision-mark { color: #8dde9e; background: rgba(83,190,110,.1); }
.experience-title { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.experience-title h3 { margin: 0 0 3px; font: 600 clamp(1.2rem,2vw,1.55rem)/1.2 var(--font-display); letter-spacing: -.02em; }
.experience-title p { margin: 0; color: #c2ceda !important; font-size: 14px !important; }
.experience-copy > p { max-width: 760px; margin: 16px 0 20px; color: var(--muted); font-size: 14px; }
.work-mode { flex: 0 0 auto; padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }

.skill-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.skill-card { position: relative; min-height: 230px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(17,34,55,.74), rgba(10,22,38,.74)); overflow: hidden; transition: transform .35s ease, border-color .35s ease, background .35s ease; }
.skill-card::after { content: ""; position: absolute; right: -50px; bottom: -70px; width: 140px; height: 140px; border-radius: 50%; background: var(--cyan); filter: blur(75px); opacity: 0; transition: opacity .35s ease; }
.skill-card:hover { transform: translateY(-8px); border-color: rgba(82,230,207,.36); background: linear-gradient(145deg, rgba(21,44,67,.86), rgba(10,22,38,.86)); }
.skill-card:hover::after { opacity: .18; }
.skill-number { color: #65778b; font: 600 11px/1 var(--font-display); letter-spacing: .1em; }
.skill-card h3 { margin: 72px 0 12px; font: 600 22px/1.2 var(--font-display); }
.skill-card p { margin: 0; color: var(--muted); font-size: 14px; }

.projects-heading { display: flex; justify-content: space-between; gap: 30px; align-items: flex-end; }
.projects-heading .section-heading { margin-bottom: 64px; }
.carousel-controls { margin-bottom: 64px; display: flex; gap: 8px; }
.carousel-controls button { width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.04); cursor: pointer; display: grid; place-items: center; transition: border-color .25s ease, background .25s ease, transform .25s ease; }
.carousel-controls button:hover { border-color: var(--cyan); background: rgba(82,230,207,.08); transform: translateY(-2px); }
.project-track { display: flex; gap: 18px; padding: 2px 2px 18px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: rgba(82,230,207,.55) rgba(255,255,255,.04); }
.project-track:focus-visible { outline: 2px solid var(--cyan); outline-offset: 8px; border-radius: var(--radius); }
.project-card { flex: 0 0 min(470px, 82vw); border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; scroll-snap-align: start; display: flex; flex-direction: column; transition: transform .35s ease, border-color .35s ease; }
.project-card:hover { transform: translateY(-7px); border-color: rgba(169,139,255,.38); }
.project-art { position: relative; height: 260px; flex: 0 0 auto; overflow: hidden; background: #0b192a; }
.project-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(7,17,31,.75), transparent 60%); }
.neural-art { display: grid; place-items: center; background: radial-gradient(circle at 50%, rgba(82,230,207,.22), transparent 42%), linear-gradient(135deg, #111d37, #0a2630); }
.neural-art span { position: absolute; width: 13px; height: 13px; border: 2px solid var(--cyan); border-radius: 50%; box-shadow: 0 0 24px rgba(82,230,207,.6); }
.neural-art span:nth-child(1) { transform: translate(-120px,-42px); }
.neural-art span:nth-child(2) { transform: translate(-45px,54px); }
.neural-art span:nth-child(3) { transform: translate(10px,-65px); }
.neural-art span:nth-child(4) { transform: translate(92px,36px); }
.neural-art span:nth-child(5) { width: 48px; height: 48px; border-color: var(--violet); }
.neural-art::before { content: ""; width: 290px; height: 170px; background: repeating-linear-gradient(34deg, transparent 0 24px, rgba(82,230,207,.16) 25px 26px), repeating-linear-gradient(-32deg, transparent 0 29px, rgba(169,139,255,.13) 30px 31px); transform: rotate(-4deg); }
.library-art { padding: 60px; display: flex; align-items: flex-end; justify-content: center; gap: 8px; background: linear-gradient(140deg, #251d43, #102339 58%, #123a3a); }
.library-art span { position: absolute; top: 55px; color: rgba(255,255,255,.06); font: 700 86px/1 var(--font-display); letter-spacing: .18em; transform: translateX(.1em); }
.library-art i { position: relative; z-index: 1; width: 62px; height: 142px; border: 1px solid rgba(255,255,255,.2); border-radius: 4px 10px 6px 4px; background: linear-gradient(90deg, rgba(255,255,255,.04), rgba(169,139,255,.38)); transform: rotate(-5deg); box-shadow: 9px 12px 30px rgba(0,0,0,.22); }
.library-art i:nth-of-type(2) { height: 175px; background: linear-gradient(90deg, rgba(255,255,255,.05), rgba(82,230,207,.34)); transform: rotate(2deg); }
.library-art i:nth-of-type(3) { height: 125px; transform: rotate(8deg); }
.ocr-art { display: grid; place-items: center; background: radial-gradient(circle at 48% 48%, rgba(82,230,207,.2), transparent 38%), linear-gradient(135deg,#0a1828,#102b34); }
.ocr-art span { position: relative; z-index: 2; color: var(--cyan); font: 700 58px/1 var(--font-display); letter-spacing: .08em; }
.ocr-art i { position: absolute; width: 64%; height: 66%; border: 2px solid rgba(82,230,207,.45); border-radius: 9px; clip-path: polygon(0 0, 22% 0, 22% 2%, 2% 2%, 2% 22%, 0 22%, 0 0, 100% 0, 100% 22%, 98% 22%, 98% 2%, 78% 2%, 78% 0, 100% 0, 100% 100%, 78% 100%, 78% 98%, 98% 98%, 98% 78%, 100% 78%, 100% 100%, 0 100%, 0 78%, 2% 78%, 2% 98%, 22% 98%, 22% 100%, 0 100%); }
.sports-art { display: grid; place-items: center; background: linear-gradient(145deg,#123227,#0c1728 65%); }
.sports-art span { color: #9cf0ae; font: 700 82px/1 var(--font-display); letter-spacing: -.08em; }
.sports-art i { position: absolute; font-style: normal; font-size: 24px; }
.sports-art i:first-of-type { top: 35px; right: 55px; }
.sports-art i:last-of-type { bottom: 38px; left: 54px; color: var(--cyan); }
.data-art { display: flex; align-items: flex-end; justify-content: center; gap: 17px; padding-bottom: 52px; background: linear-gradient(145deg,#14233a,#241f43); }
.data-art span { position: absolute; top: 42px; color: rgba(255,255,255,.75); font: 700 34px/1 var(--font-display); letter-spacing: .18em; }
.data-art i { width: 54px; border-radius: 6px 6px 0 0; background: linear-gradient(var(--cyan), rgba(82,230,207,.2)); }
.data-art i:nth-of-type(1) { height: 48px; }.data-art i:nth-of-type(2) { height: 88px; }.data-art i:nth-of-type(3) { height: 125px; background: linear-gradient(var(--violet),rgba(169,139,255,.2)); }
.movie-art { display: grid; place-items: center; background: radial-gradient(circle at 70% 20%, rgba(169,139,255,.24), transparent 28%), linear-gradient(145deg,#21142f,#101a2c); }
.movie-art span { font: 700 76px/1 var(--font-display); letter-spacing: -.08em; background: linear-gradient(100deg,var(--cyan),var(--violet)); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.movie-art i { position: absolute; top: 36px; right: 46px; color: #ffcf58; font-style: normal; font-size: 30px; }
.pixel-art { display: grid; grid-template-columns: repeat(3,45px); grid-template-rows: repeat(2,45px); gap: 7px; place-content: center; background: linear-gradient(145deg,#151c35,#182e34); }
.pixel-art span { background: var(--cyan); opacity: .72; }.pixel-art span:nth-child(2),.pixel-art span:nth-child(6){ background: var(--violet); }.pixel-art span:nth-child(3),.pixel-art span:nth-child(4){ opacity:.2; }
.pixel-art strong { position: absolute; right: 30px; bottom: 23px; font: 700 24px/1 var(--font-display); color: rgba(255,255,255,.6); }
.project-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.project-meta { display: flex; justify-content: space-between; color: var(--cyan); font: 700 11px/1 var(--font-display); letter-spacing: .08em; text-transform: uppercase; }
.project-body h3 { margin: 18px 0 12px; font: 600 clamp(1.45rem,2.3vw,2rem)/1.15 var(--font-display); letter-spacing: -.025em; }
.project-body p { min-height: 86px; margin: 0 0 22px; color: var(--muted); font-size: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; }
.tags span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: #b6c4d3; font-size: 11px; }
.text-link { width: fit-content; margin: 28px 0 0 auto; display: flex; align-items: center; gap: 8px; padding-bottom: 5px; border-bottom: 1px solid var(--cyan); color: var(--cyan); font-size: 14px; font-weight: 700; }
.project-link { width: fit-content; margin-top: auto; padding-top: 24px; color: var(--cyan); font-size: 12px; font-weight: 700; display: flex; align-items: center; gap: 8px; }

.chat-section { padding-bottom: 150px; display: grid; grid-template-columns: .82fr 1.18fr; gap: 70px; align-items: center; }
.chat-spotlight { margin-top: 8px; margin-bottom: 110px; padding: 46px; border: 1px solid rgba(82,230,207,.18); border-radius: 30px; background: linear-gradient(135deg,rgba(82,230,207,.055),rgba(169,139,255,.045)); box-shadow: 0 30px 100px rgba(0,0,0,.18); }
.chat-spotlight.is-collapsed { grid-template-columns: .85fr 1.15fr; gap: 42px; padding: 28px 34px; }
.chat-spotlight.is-collapsed .chat-intro h2 { font-size: clamp(1.7rem,3vw,2.55rem); }
.chat-spotlight.is-collapsed .chat-intro > p:not(.section-index) { display: none; }
.chat-spotlight.is-collapsed .prompt-list { margin-top: 20px; }
.chat-spotlight.is-collapsed .chat-window { display: none; }
.chat-spotlight.is-collapsed .chat-card { box-shadow: 0 18px 50px rgba(0,0,0,.16); }
.chat-spotlight.is-collapsed .chat-topbar { min-height: 62px; }
.chat-spotlight.is-collapsed #collapse-chat { display: none; }
.chat-intro > p:not(.section-index) { max-width: 500px; margin: 24px 0 0; color: var(--muted); }
.prompt-list { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.prompt-chip { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: #b9c7d6; cursor: pointer; font-size: 11px; transition: border-color .25s ease, color .25s ease; }
.prompt-chip:hover { border-color: var(--cyan); color: var(--cyan); }
.chat-card { border: 1px solid rgba(156,183,214,.2); border-radius: 26px; background: rgba(12,26,44,.83); backdrop-filter: blur(18px); overflow: hidden; box-shadow: 0 30px 90px rgba(0,0,0,.24); }
.chat-topbar { min-height: 76px; padding: 13px 18px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.chat-actions { display: flex; gap: 7px; }
.assistant-identity { display: flex; align-items: center; gap: 11px; }
.assistant-avatar { width: 46px; height: 42px; border-radius: 13px; background: linear-gradient(135deg, var(--cyan), var(--violet)); display: grid; place-items: center; color: #091321; font: 700 11px/1 var(--font-display); letter-spacing: -.04em; }
.assistant-identity strong { display: block; font-size: 14px; }
.assistant-identity div > span { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 11px; }
.assistant-identity i { width: 6px; height: 6px; border-radius: 50%; background: #53e89c; }
.icon-btn { width: 36px; height: 36px; }
.chat-window { height: 390px; padding: 22px; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; scrollbar-color: #33475c transparent; }
.message { width: fit-content; max-width: 82%; margin: 0 0 13px; padding: 11px 14px; border-radius: 15px; white-space: pre-wrap; line-height: 1.45; font-size: 13px; animation: message-in .3s ease both; }
.message a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.message.user { margin-left: auto; border-bottom-right-radius: 4px; color: #07131a; background: var(--cyan); }
.message.bot { margin-right: auto; border: 1px solid var(--line); border-bottom-left-radius: 4px; background: rgba(255,255,255,.05); color: #dce6ef; }
.message-suggestions { max-width: 88%; margin: -4px 0 18px; display: flex; flex-wrap: wrap; gap: 7px; animation: message-in .3s ease both; }
.message-suggestions .prompt-chip { color: var(--cyan); border-color: rgba(82,230,207,.22); background: rgba(82,230,207,.045); }
.typing-indicator { min-width: 62px; display: flex; align-items: center; justify-content: center; gap: 5px; }
.typing-indicator span { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: typing-dot 1.1s ease-in-out infinite; }
.typing-indicator span:nth-child(2) { animation-delay: .14s; }
.typing-indicator span:nth-child(3) { animation-delay: .28s; }
.chat-form { padding: 14px; border-top: 1px solid var(--line); display: flex; gap: 10px; }
#user-input { min-width: 0; flex: 1; padding: 13px 14px; border: 1px solid var(--line); border-radius: 13px; outline: none; color: var(--text); background: rgba(0,0,0,.13); transition: border-color .25s ease, box-shadow .25s ease; }
#user-input::placeholder { color: #697d91; }
#user-input:focus { border-color: rgba(82,230,207,.52); box-shadow: 0 0 0 3px rgba(82,230,207,.07); }
#send-btn { padding: 10px 17px; border: 0; border-radius: 12px; background: var(--cyan); color: #07131a; cursor: pointer; font-size: 13px; font-weight: 700; display: flex; align-items: center; gap: 8px; transition: transform .2s ease, box-shadow .2s ease; }
#send-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(82,230,207,.18); }
#send-btn:disabled, #user-input:disabled { cursor: wait; opacity: .58; }
#send-btn:disabled:hover { transform: none; box-shadow: none; }

.chat-fab { position: fixed; z-index: 18; right: 24px; bottom: 24px; min-height: 52px; padding: 7px 15px 7px 7px; border: 1px solid rgba(82,230,207,.35); border-radius: 999px; background: rgba(9,22,37,.88); backdrop-filter: blur(15px); color: var(--text); display: flex; align-items: center; gap: 9px; cursor: pointer; box-shadow: 0 16px 45px rgba(0,0,0,.3); transition: opacity .25s ease, transform .25s ease, border-color .25s ease; }
.chat-fab span { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg,var(--cyan),var(--violet)); color: #07131a; display: grid; place-items: center; font: 700 9px/1 var(--font-display); }
.chat-fab strong { font-size: 12px; }
.chat-fab:hover { transform: translateY(-4px); border-color: var(--cyan); }
.chat-fab.is-hidden { opacity: 0; pointer-events: none; transform: translateY(12px); }

.contact-strip { margin-bottom: 40px; padding-block: 82px; border-block: 1px solid var(--line); text-align: center; }
.contact-strip p { margin: 0 0 12px; color: var(--cyan); font-size: 13px; font-weight: 700; }
.contact-strip h2 { max-width: 750px; margin-inline: auto; }
.contact-strip .btn { margin-top: 32px; }
.contact-email { text-transform: none; letter-spacing: 0; }
.site-footer { min-height: 100px; padding-block: 24px; display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 12px; }
.site-footer > a:last-child:hover { color: var(--cyan); }
.back-to-top { display: flex; align-items: center; gap: 8px; }

.reveal { opacity: 0; transform: translateY(32px); transition: opacity .75s cubic-bezier(.22,1,.36,1), transform .75s cubic-bezier(.22,1,.36,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.skill-card:nth-child(2), .project-card:nth-child(2) { transition-delay: .08s; }
.skill-card:nth-child(3) { transition-delay: .16s; }
.skill-card:nth-child(4) { transition-delay: .24s; }

@keyframes pulse { 50% { box-shadow: 0 0 0 10px rgba(82,230,207,0), 0 0 22px var(--cyan); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 50% { transform: translateY(-9px); } }
@keyframes morph { 50% { border-radius: 57% 43% 39% 61% / 54% 62% 38% 46%; transform: rotate(3deg); } }
@keyframes message-in { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@keyframes typing-dot { 0%, 60%, 100% { opacity: .35; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 150px; }
  .hero-copy { position: relative; z-index: 3; }
  .hero-visual { position: absolute; right: -150px; top: 100px; width: 460px; opacity: .38; }
  .hero-chat-trigger { display: none; }
  .scroll-cue { display: none; }
  .skill-grid { grid-template-columns: repeat(2,1fr); }
  .about-grid, .chat-section { grid-template-columns: 1fr; gap: 50px; }
  .chat-spotlight { padding: 34px; }
  .chat-spotlight.is-collapsed { grid-template-columns: 1fr; gap: 24px; }
  .chat-intro { max-width: 720px; }
}

@media (max-width: 680px) {
  .section-shell { width: min(100% - 30px, 1160px); }
  .site-header { top: 10px; width: calc(100% - 20px); }
  .nav-links { display: none; }
  .hero { padding-top: 130px; padding-bottom: 75px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  .hero-lead { font-size: 1rem; }
  .hero-visual { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats article { padding: 16px 10px; border-bottom: 1px solid var(--line); }
  .stats article:nth-child(2) { border-right: 0; }
  .stats article:nth-child(3), .stats article:nth-child(4) { border-bottom: 0; }
  .content-section { padding-top: 100px; }
  .section-heading { margin-bottom: 42px; }
  .section-heading h2, .chat-intro h2, .contact-strip h2 { font-size: clamp(2.15rem, 11vw, 3.3rem); }
  .about-grid { gap: 40px; }
  .experience-card { grid-template-columns: 50px 1fr; gap: 15px; }
  .experience-card.current-role { padding-inline: 15px; }
  .experience-date { grid-column: 1 / -1; display: flex; align-items: center; gap: 9px; }
  .experience-date span, .experience-date strong { display: inline; margin: 0; }
  .company-mark { grid-column: 1; grid-row: 2; }
  .experience-copy { grid-column: 2; grid-row: 2; }
  .experience-title { display: block; }
  .work-mode { width: fit-content; display: block; margin-top: 10px; }
  .skill-grid { grid-template-columns: 1fr; }
  .skill-card { min-height: 190px; }
  .skill-card h3 { margin-top: 45px; }
  .project-art { height: 250px; }
  .chat-section { padding-bottom: 100px; }
  .chat-spotlight { margin-bottom: 80px; padding: 25px 15px; border-radius: 22px; }
  .chat-spotlight.is-collapsed { padding: 22px 15px; }
  .chat-spotlight.is-collapsed .prompt-list { display: none; }
  .projects-heading { display: block; }
  .carousel-controls { margin: -22px 0 30px; justify-content: flex-end; }
  .project-card { flex-basis: min(88vw, 430px); }
  .chat-window { height: 370px; padding: 15px; }
  .message { max-width: 90%; }
  #send-btn span:first-child { display: none; }
  .contact-strip { padding-block: 65px; }
  .contact-email { max-width: 100%; font-size: 12px; overflow-wrap: anywhere; }
  .site-footer { gap: 18px; flex-wrap: wrap; }
  .chat-fab { right: 14px; bottom: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .fluid-background { opacity: .48; }
}