:root {
  --bg: #0b1220;
  --bg-elev: #111a2e;
  --text: #eaf0ff;
  --muted: rgba(234, 240, 255, 0.72);
  --border: rgba(234, 240, 255, 0.14);
  --shadow: 0 10px 30px rgba(0,0,0,.35);

  --accent1: #4aa8ff;
  --accent2: #8b5cf6;
  --accent3: #22d3ee;

  --radius: 18px;
  --radius-sm: 14px;

  --max: 1120px;
  --pad: 20px;

  --h1: clamp(2.2rem, 4vw, 3.2rem);
  --h2: clamp(1.5rem, 2.4vw, 2rem);
  --h3: 1.05rem;
  --p: 1rem;

  --focus: 0 0 0 3px rgba(74,168,255,.35), 0 0 0 6px rgba(34,211,238,.12);
}

/* Light theme */
html[data-theme="light"] {
  --bg: #f7f9ff;
  --bg-elev: #ffffff;
  --text: #0b1220;
  --muted: rgba(11, 18, 32, 0.72);
  --border: rgba(11, 18, 32, 0.12);
  --shadow: 0 12px 30px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 10% 10%, rgba(139,92,246,.18), transparent 60%),
              radial-gradient(900px 600px at 90% 20%, rgba(34,211,238,.16), transparent 60%),
              radial-gradient(900px 700px at 30% 90%, rgba(74,168,255,.12), transparent 60%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; }

/* Skip link */
.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  transform: translateY(-200%);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 12px;
  z-index: 9999;
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); outline: none; box-shadow: var(--focus); }

.container { width: min(var(--max), 100%); margin: 0 auto; padding: 0 var(--pad); }

/* Header / Nav */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: .2px;
  white-space: nowrap;
}
.logo {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
  box-shadow: 0 10px 20px rgba(0,0,0,.18);
}
.logo-sm { width: 28px; height: 28px; border-radius: 12px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-links a {
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, transform .2s ease, color .2s ease;
}
.nav-links a:hover {
  background: color-mix(in srgb, var(--bg-elev) 80%, transparent);
  border-color: var(--border);
  color: var(--text);
  transform: translateY(-1px);
}
.nav-links a[aria-current="page"]{
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent1) 40%, var(--border));
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  user-select: none;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent3) 30%, var(--border)); }
.btn:focus-visible { outline: none; box-shadow: var(--focus); }
.btn.primary {
  border-color: color-mix(in srgb, var(--accent1) 50%, transparent);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent1) 30%, var(--bg-elev)),
                                    color-mix(in srgb, var(--accent2) 20%, var(--bg-elev)));
}
.btn.ghost { background: transparent; }

.icon { width: 18px; height: 18px; display: inline-block; flex: 0 0 auto; }

/* Mobile nav */
.menu-btn { display: none; }
.mobile-panel { display: none; }

@media (max-width: 920px) {
  .nav-links { display: none; }
  .menu-btn { display: inline-flex; }
  .mobile-panel { padding: 0 0 12px; }
  .mobile-panel.open { display: block; }

  .mobile-panel a {
    display: block;
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
    margin-top: 10px;
    color: var(--text);
    font-weight: 700;
  }
}

/* Sections */
section { padding: 76px 0; }
.section-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}
.section-title h2 { margin: 0; font-size: var(--h2); letter-spacing: -0.3px; }
.section-title p { margin: 0; color: var(--muted); max-width: 58ch; }

.card {
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: none;
}
.card.pad { padding: 18px; }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* Hero */
.hero { padding: 86px 0 70px; }
.hero-wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; align-items: center; }
@media (max-width: 980px) { .hero-wrap { grid-template-columns: 1fr; } }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elev) 90%, transparent);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.92rem;
  width: fit-content;
}
.tag .dot {
  width: 10px; height: 10px; border-radius: 99px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
  box-shadow: 0 6px 16px rgba(0,0,0,.2);
}

.hero h1 {
  margin: 14px 0 8px;
  font-size: var(--h1);
  line-height: 1.08;
  letter-spacing: -1px;
}
.hero .role { color: var(--muted); font-weight: 700; letter-spacing: .2px; margin: 0 0 16px; font-size: 1.05rem; }
.hero .lead { margin: 0 0 22px; color: var(--muted); max-width: 65ch; font-size: 1.05rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-side {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    radial-gradient(500px 380px at 20% 20%, rgba(74,168,255,.22), transparent 62%),
    radial-gradient(500px 380px at 80% 30%, rgba(34,211,238,.18), transparent 62%),
    radial-gradient(500px 380px at 50% 90%, rgba(139,92,246,.20), transparent 62%),
    color-mix(in srgb, var(--bg-elev) 90%, transparent);
  padding: 18px;
  min-height: 260px;
}
.hero-side .mini { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.pill {
  border-radius: 16px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  padding: 14px;
}
.pill h3 { margin: 0 0 6px; font-size: 0.95rem; letter-spacing: .2px; }
.pill p { margin: 0; color: var(--muted); font-weight: 600; font-size: 0.92rem; }

.avatar {
  width: 68px; height: 68px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: .5px;
  box-shadow: 0 14px 30px rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.12);
}
.hero-side .toprow { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.hero-side-left { display:flex; align-items:center; gap:12px; }
.hero-available { font-weight:900; letter-spacing:.2px; }
.hero-location { color:var(--muted); font-weight:800; font-size:.92rem; }

.kpi { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.kpi .pill { text-align: center; }
.kpi strong { display: block; font-size: 1.2rem; }
.kpi span { color: var(--muted); font-weight: 700; font-size: 0.9rem; }

@media (max-width: 520px) {
  .hero-side .mini { grid-template-columns: 1fr; }
  .kpi { grid-template-columns: 1fr; }
}

/* About */
.about-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 18px; align-items: stretch; }
@media (max-width: 980px) { .about-wrap { grid-template-columns: 1fr; } }

.about-card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.about-card p { margin: 0 0 10px; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.stat { border-radius: 16px; border: 1px solid var(--border); padding: 14px; background: color-mix(in srgb, var(--bg) 70%, transparent); }
.stat strong { display: block; font-size: 1.1rem; }
.stat span { color: var(--muted); font-weight: 700; font-size: 0.9rem; }
@media (max-width: 520px) { .stats { grid-template-columns: 1fr; } }

/* Skills */
.skill-cat h3 { margin: 0 0 10px; font-size: 1.05rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  color: var(--text);
  font-weight: 700;
  font-size: 0.9rem;
}
.chip svg { opacity: .9; }

.meter { margin-top: 12px; display: grid; gap: 10px; }
.meter-row { display: grid; grid-template-columns: 120px 1fr 48px; gap: 10px; align-items: center; }
.meter-row label { font-weight: 800; color: var(--muted); font-size: .92rem; }
.bar {
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 65%, transparent);
  overflow: hidden;
  position: relative;
}
.bar > i {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent1), var(--accent2), var(--accent3));
  transform: translateX(-6px);
}
.meter-row .pct { text-align: right; color: var(--muted); font-weight: 800; font-size: .92rem; }
@media (max-width: 520px) {
  .meter-row { grid-template-columns: 1fr; }
  .meter-row .pct { text-align: left; }
}

.skill-workflow { margin-top:14px; background: color-mix(in srgb, var(--bg) 65%, transparent); }

/* Projects */
.project-card { overflow: hidden; }
.project-media {
  height: 170px;
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(74,168,255,.22), rgba(139,92,246,.18), rgba(34,211,238,.14)),
    repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 12px, rgba(0,0,0,0) 12px 24px);
  display: grid;
  place-items: center;
  position: relative;
}
.project-media span {
  font-weight: 900;
  letter-spacing: .6px;
  color: rgba(255,255,255,.9);
  background: rgba(0,0,0,.18);
  border: 1px solid rgba(255,255,255,.16);
  padding: 8px 10px;
  border-radius: 14px;
  backdrop-filter: blur(10px);
}
html[data-theme="light"] .project-media span {
  color: rgba(11,18,32,.92);
  background: rgba(255,255,255,.55);
  border-color: rgba(11,18,32,.12);
}
.project-body { padding: 16px; }
.project-body h3 { margin: 0 0 8px; font-size: 1.05rem; }
.project-body p { margin: 0 0 12px; color: var(--muted); }
.stack { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.badge {
  font-weight: 800;
  font-size: 0.82rem;
  padding: 7px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 68%, transparent);
  color: var(--text);
}
.project-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* Timeline */
.timeline { position: relative; padding-left: 18px; }
.timeline:before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: color-mix(in srgb, var(--border) 85%, transparent);
}
.t-item {
  position: relative;
  padding: 14px 14px 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  margin-bottom: 12px;
}
.t-item:before{
  content:"";
  position:absolute;
  left:-18px;
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 99px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
  box-shadow: 0 10px 20px rgba(0,0,0,.25);
  border: 1px solid rgba(255,255,255,.14);
}
.t-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.t-head strong { font-size: 1.02rem; }
.t-head span { color: var(--muted); font-weight: 800; font-size: .92rem; }
.t-item p { margin: 8px 0 0; color: var(--muted); }
.t-item ul { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.t-item li { margin: 6px 0; }

/* Certifications */
.certs { display: flex; flex-wrap: wrap; gap: 10px; }
.cert {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  padding: 10px 12px;
  font-weight: 800;
}
.cert .badge-icon{
  width: 26px; height: 26px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
  border: 1px solid rgba(255,255,255,.14);
}
html[data-theme="light"] .cert .badge-icon{ border-color: rgba(11,18,32,.12); }

.tip-card { margin-top:14px; background: color-mix(in srgb, var(--bg) 65%, transparent); }

/* Contact */
form { display: grid; gap: 12px; }
.field { display: grid; gap: 6px; }
label { font-weight: 800; color: var(--muted); font-size: 0.92rem; }
input, textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  color: var(--text);
  font-weight: 650;
  outline: none;
}
textarea { min-height: 130px; resize: vertical; }
input:focus, textarea:focus { box-shadow: var(--focus); border-color: color-mix(in srgb, var(--accent1) 40%, var(--border)); }

.contact-meta a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  margin-right: 10px;
  margin-top: 10px;
  font-weight: 800;
  color: var(--text);
  transition: transform .2s ease, box-shadow .2s ease;
}
.contact-meta a:hover { transform: translateY(-1px); box-shadow: var(--shadow); }

.info-card { margin-top:14px; background: color-mix(in srgb, var(--bg) 65%, transparent); }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 20px 0 32px; color: var(--muted); }
.footer-row { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.footer-row a { color: var(--muted); font-weight: 800; }
.footer-row a:hover { color: var(--text); }
.footer-links { display:flex; gap:12px; flex-wrap:wrap; }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: .08s; }
.reveal.delay-2 { transition-delay: .16s; }
.reveal.delay-3 { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .nav-links a, .contact-meta a { transition: none; }
  .btn:hover, .nav-links a:hover, .contact-meta a:hover { transform: none; }
}

/* Toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: color-mix(in srgb, var(--bg-elev) 92%, transparent);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  display:none;
  z-index: 9999;
  font-weight: 800;
}

/* Utilities */
.muted{ color: var(--muted); }
.fw900{ font-weight:900; }
.fw750{ font-weight:750; }
.fw700{ font-weight:700; }
.mb4{ margin-bottom:4px; }
.mb6{ margin-bottom:6px; }
.mb8{ margin-bottom:8px; }
.mb10{ margin-bottom:10px; }
.mt10{ margin-top:10px; }
.mt14{ margin-top:14px; }
.muted-list { margin: 0; padding-left: 18px; color: var(--muted); font-weight: 700; }
.about-inner-card { margin-top:14px; background: color-mix(in srgb, var(--bg) 65%, transparent); }
.about-inner-row { display:flex; gap:10px; align-items:flex-start; }

.project-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-body {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-body p {
  flex-grow: 1;
}

.project-actions {
  margin-top: auto;
}

.contact-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}