:root {
  --bg: #f3f0e8;
  --bg-2: #ece6da;
  --surface: rgba(255, 255, 255, 0.62);
  --surface-strong: rgba(255, 255, 255, 0.82);
  --text: #17181d;
  --muted: #596071;
  --accent: #3559e0;
  --accent-2: #7d5bff;
  --ring: rgba(53, 89, 224, 0.25);
  --border: rgba(32, 38, 52, 0.12);
  --shadow: 0 22px 60px rgba(28, 34, 52, 0.12);
}

html[data-theme="dark"] {
  --bg: #0d111a;
  --bg-2: #12192a;
  --surface: rgba(24, 29, 42, 0.64);
  --surface-strong: rgba(24, 29, 42, 0.82);
  --text: #f3f7ff;
  --muted: #aeb7cc;
  --accent: #7ab8ff;
  --accent-2: #b18cff;
  --ring: rgba(122, 184, 255, 0.26);
  --border: rgba(240, 246, 255, 0.14);
  --shadow: 0 25px 65px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
body {
  margin: 0;
  font-family: "Inter", "Plus Jakarta Sans", Segoe UI, Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(900px 500px at -10% -10%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 60%),
    radial-gradient(700px 450px at 120% 10%, color-mix(in srgb, var(--accent-2) 20%, transparent), transparent 63%),
    linear-gradient(170deg, var(--bg), var(--bg-2));
  background-size: 120% 120%, 120% 120%, 100% 100%;
  animation: gradientShift 20s ease-in-out infinite;
}

body::before,
body::after,
html::before {
  content: "";
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(75px);
  opacity: 0.4;
  pointer-events: none;
}

body::before {
  width: 420px;
  height: 420px;
  top: 8vh;
  left: -130px;
  background: color-mix(in srgb, var(--accent-2) 55%, transparent);
  animation: orbOne 13s ease-in-out infinite;
}

body::after {
  width: 380px;
  height: 380px;
  right: -110px;
  bottom: 6vh;
  background: color-mix(in srgb, var(--accent) 35%, var(--accent-2));
  animation: orbTwo 15s ease-in-out infinite;
}

html::before {
  width: 300px;
  height: 300px;
  right: 28vw;
  top: 36vh;
  background: color-mix(in srgb, var(--accent-2) 45%, transparent);
  animation: orbThree 17s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 0%, 100% 0%, center; }
  50% { background-position: 20% 12%, 84% 18%, center; }
}
@keyframes orbOne {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(36px,-24px) scale(1.07); }
}
@keyframes orbTwo {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-40px,-30px) scale(1.06); }
}
@keyframes orbThree {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(-26px,26px) scale(1.11); }
}

#scrollProgress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 30;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 5vw;
  background: color-mix(in srgb, var(--surface-strong) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand {
  font-weight: 800;
  letter-spacing: 0.4px;
  background: linear-gradient(95deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  color: transparent;
}
.desktop-nav, .mobile-nav { display: flex; gap: 0.8rem; align-items: center; }
.desktop-nav a, .mobile-nav a { color: var(--muted); padding: 0.35rem 0.8rem; border-radius: 999px; transition: .2s ease; }
.desktop-nav a.active, .desktop-nav a:hover, .mobile-nav a.active, .mobile-nav a:hover { color: var(--text); background: color-mix(in srgb, var(--accent) 14%, transparent); }

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.38rem 0.8rem;
  cursor: pointer;
  color: var(--text);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 0.3rem 0.58rem;
  font-size: 1.1rem;
  cursor: pointer;
}

.mobile-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(320px, 86vw);
  background: color-mix(in srgb, var(--surface-strong) 96%, transparent);
  backdrop-filter: blur(14px);
  border-left: 1px solid var(--border);
  padding: 1rem;
  transform: translateX(104%);
  transition: transform .28s ease;
  z-index: 60;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 1rem;
}
.mobile-sidebar.open { transform: translateX(0); }
.sidebar-head { display: flex; justify-content: space-between; align-items: center; }
.sidebar-close {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 8px;
  padding: 0.2rem 0.45rem;
  cursor: pointer;
}
.mobile-nav { flex-direction: column; align-items: stretch; }
.mobile-nav a { width: 100%; }
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 10, 18, 0.34);
  z-index: 50;
}

main, .page { width: min(1120px, 92vw); margin: 0 auto; display: grid; gap: 1rem; }
section { padding: 4.4rem 0; scroll-margin-top: 84px; }
.hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 2rem; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 1.4px; font-size: 0.8rem; }
h1 { font-size: clamp(2rem, 5vw, 4rem); line-height: 1.1; margin: 0.2rem 0 1rem; }
h1 span { background: linear-gradient(95deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; color: transparent; }
h2 { font-size: clamp(1.4rem, 3vw, 2.1rem); margin-bottom: 0.6rem; }
.lead { color: var(--muted); max-width: 66ch; }
.typing-line { color: var(--muted); min-height: 1.8rem; }
#typedRole { color: var(--accent); font-weight: 700; }

.btn { display: inline-block; padding: 0.75rem 1.15rem; border-radius: 12px; background: linear-gradient(95deg, var(--accent), var(--accent-2)); color: #fff; font-weight: 700; border: 1px solid transparent; box-shadow: 0 10px 20px color-mix(in srgb, var(--accent) 25%, transparent); transition: transform .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); box-shadow: none; }
.cta-row { display: flex; gap: 0.8rem; margin-top: 1.2rem; flex-wrap: wrap; }

.profile { width: min(380px, 100%); justify-self: end; border-radius: 26px; border: 1px solid var(--border); box-shadow: var(--shadow); animation: profileFloat 5s ease-in-out infinite; }
@keyframes profileFloat { 0%,100% { transform: translateY(0);} 50%{ transform: translateY(-8px);} }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.stat { padding: 1rem; border-radius: 18px; border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); text-align: center; }
.stat strong { display: block; font-size: 1.8rem; }
.stat span { color: var(--muted); }

.about, .skills, .featured, .contact, .certs { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow); padding: 1.4rem; position: relative; isolation: isolate; }
.about::before, .skills::before, .featured::before, .contact::before, .certs::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(130deg, color-mix(in srgb, var(--accent) 35%, transparent), transparent 45%, color-mix(in srgb, var(--accent-2) 35%, transparent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.45;
  pointer-events: none;
}

.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
.chip { padding: 0.48rem 0.85rem; border: 1px solid var(--border); border-radius: 999px; background: color-mix(in srgb, var(--surface-strong) 85%, transparent); color: var(--muted); }

.skills-grid { display: grid; gap: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.skill-block, .card, .contact-card, .form { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); }
.skill-block { padding: 1rem; transition: .25s ease; }
.skill-block:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 30%, var(--border)); }
.skill-block h3 { margin-top: 0; }
.skill-block p { color: var(--muted); margin: 0.35rem 0 0; }

.section-head { display: flex; justify-content: space-between; align-items: center; gap: 0.8rem; }
.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin-top: 1rem; }
#allProjects.cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { padding: 1rem; transition: transform .2s ease, border-color .2s ease; transform-style: preserve-3d; background: linear-gradient(160deg, color-mix(in srgb, var(--surface-strong) 90%, transparent), var(--surface)); }
.card:hover { transform: translateY(-5px); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.card h3 { margin: 0 0 0.2rem; }
.meta { font-size: 0.92rem; color: var(--muted); }
.meta strong { font-weight: 800; color: var(--text); }
.links { display: flex; gap: 0.8rem; margin-top: 0.8rem; flex-wrap: wrap; }
.links a { color: var(--accent); font-weight: 700; }

#certifications .card { background: linear-gradient(160deg, color-mix(in srgb, var(--surface-strong) 93%, transparent), var(--surface)); }
.cert-provider { margin: 0 0 0.45rem; font-size: 1rem; color: var(--accent); font-weight: 800; }
.cert-link { display: inline-block; margin-top: 0.5rem; color: var(--accent); font-weight: 700; }

.tag { display: inline-block; font-size: 0.75rem; border-radius: 999px; padding: 0.2rem 0.55rem; border: 1px solid var(--border); color: var(--accent); margin-bottom: 0.35rem; }
.project-toolbar { margin-top: 1rem; display: grid; gap: 0.8rem; }
.filter-row { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.filter-btn { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 999px; padding: 0.35rem 0.8rem; cursor: pointer; }
.filter-btn.active { background: linear-gradient(95deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent; }
#projectSearch { width: min(360px, 100%); border: 1px solid var(--border); border-radius: 10px; padding: 0.65rem 0.8rem; background: color-mix(in srgb, var(--surface-strong) 80%, transparent); color: var(--text); }

.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; margin: 1rem 0; }
.contact-card { padding: 1rem; transition: .2s ease; }
.contact-card:hover { transform: translateY(-4px); }

.contact-form-wrap { text-align: center; }
.contact-form-wrap .lead { margin-inline: auto; }
.form { display: grid; gap: 0.8rem; max-width: 660px; padding: 1.2rem; margin-inline: auto; text-align: left; }
input, textarea {
  width: 100%; margin-top: 0.3rem; border: 1px solid var(--border); border-radius: 10px; padding: 0.75rem;
  background: color-mix(in srgb, var(--surface-strong) 80%, transparent); color: var(--text);
}
input:focus, textarea:focus, #projectSearch:focus { outline: 2px solid var(--ring); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }

#toTop { position: fixed; right: 1rem; bottom: 1rem; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: var(--surface-strong); color: var(--text); cursor: pointer; opacity: 0; transform: translateY(8px); transition: .2s ease; }
#toTop.show { opacity: 1; transform: translateY(0); }

footer { width: min(1120px, 92vw); margin: 0 auto; padding: 1rem 0 2rem; border-top: 1px solid var(--border); color: var(--muted); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem; }
.socials { display: flex; gap: 1rem; }
.socials a { transition: color .2s ease, transform .2s ease; }
.socials a:hover { color: var(--accent); transform: translateY(-1px); }

.zoom-section { transform: scale(0.96) translateY(25px); opacity: 0; transition: transform .85s cubic-bezier(.2,.65,.2,1), opacity .85s ease; }
.zoom-section.in-view { transform: scale(1) translateY(0); opacity: 1; }

.reveal-item {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s ease, transform .7s ease;
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal-item.reveal-in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  #allProjects.cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .profile { justify-self: start; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  main, .page { width: min(1120px, 94vw); }
  section { padding: 3.4rem 0; }
  .skills-grid { grid-template-columns: 1fr; }
  #allProjects.cards,
  .cards { grid-template-columns: 1fr; }
  .site-header { justify-content: space-between; }
  .desktop-nav, .desktop-theme { display: none; }
  .menu-toggle { display: inline-block; margin-left: auto; }
}

@media (max-width: 560px) {
  h1 { font-size: clamp(1.7rem, 8vw, 2.3rem); }
  .cta-row { flex-direction: column; align-items: stretch; }
  .btn { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}