/* Professional single-page CV — clean, modern, fast. */

:root{
  --bg: #0b1220;
  --surface: #0f172a;
  --surface2: #111c33;
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --border: rgba(255,255,255,.10);
  --accent: #2f6fed;
  --shadow: 0 16px 48px rgba(0,0,0,.36);

  --radius: 18px;
  --radius-sm: 12px;
  --container: 1120px;

  --focus: color-mix(in srgb, var(--accent) 45%, white);
}

/* Light theme (system) */
@media (prefers-color-scheme: light){
  :root{
    --bg: #f6f7fb;
    --surface: #ffffff;
    --surface2: #f0f3fa;
    --text: #0b1220;
    --muted: rgba(11,18,32,.72);
    --border: rgba(11,18,32,.10);
    --shadow: 0 16px 48px rgba(11,18,32,.10);
  }
}

/* Manual override via data-theme */
:root[data-theme="light"]{
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface2: #f0f3fa;
  --text: #0b1220;
  --muted: rgba(11,18,32,.72);
  --border: rgba(11,18,32,.10);
  --shadow: 0 16px 48px rgba(11,18,32,.10);
}
:root[data-theme="dark"]{
  --bg: #0b1220;
  --surface: #0f172a;
  --surface2: #111c33;
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --border: rgba(255,255,255,.10);
  --shadow: 0 16px 48px rgba(0,0,0,.36);
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:
    radial-gradient(1200px 700px at 15% -10%, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 55%),
    radial-gradient(900px 600px at 90% 0%, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 52%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible{
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 10px;
}

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.skip{
  position: absolute;
  left: -999px;
  top: 10px;
  padding: 10px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 999;
}
.skip:focus{ left: 10px; }

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
}
.brand__mark{
  width: 40px; height: 40px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: color-mix(in srgb, var(--accent) 15%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
}
.brand__text{ display: grid; line-height: 1.1; }
.brand__name{ font-weight: 900; letter-spacing: -0.02em; }
.brand__role{ font-weight: 700; color: var(--muted); font-size: 12px; }

.nav{ display: flex; align-items: center; gap: 12px; width: 20%;}
.nav__toggle{
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: pointer;
}
.burger{
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  position: relative;
}
.burger::before, .burger::after{
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--text);
}
.burger::before{ top: -6px; }
.burger::after{ top: 6px; }

.nav__menu{
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 0;
}
.nav__menu a{
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
}
.nav__menu a:hover{
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  text-decoration: none;
}
.nav__menu a[aria-current="true"]{
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
}

.header__actions{ display: flex; align-items: center; gap: 10px; }

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn--primary{
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent) 32%, var(--border));
}
.btn--primary:hover{ background: color-mix(in srgb, var(--accent) 24%, transparent); }
.btn--secondary:hover{
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 22%, var(--border));
}
.btn--ghost{ background: var(--surface); }
.btn--small{ padding: 9px 12px; }
.btn__text{ font-weight: 800; }

.kicker{
  margin: 0 0 10px 0;
  color: var(--muted);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}

.section{ padding: 72px 0; }
.section__head{ margin-bottom: 18px; }
.section__head h2{
  margin: 0 0 6px 0;
  letter-spacing: -0.02em;
}
.muted{ color: var(--muted); }
.small{ font-size: 13px; }

/* Cards */
.card{
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.card__title{
  margin: 0 0 10px 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.card__actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}
.divider{
  border: 0;
  border-top: 1px solid var(--border);
  margin: 14px 0;
}

/* Hero */
.hero{ padding: 56px 0 24px 0; }
.hero__grid{
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 18px;
  align-items: start;
}
.hero__title{
  margin: 0;
  font-size: clamp(40px, 4.3vw, 58px);
  letter-spacing: -0.04em;
}
.hero__subtitle{
  margin: 10px 0 14px 0;
  font-weight: 800;
  color: var(--muted);
}
.hero__lead{
  margin: 0 0 18px 0;
  color: var(--muted);
  max-width: 70ch;
}
.hero__cta{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.meta{
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
}
.meta__item{
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}
.meta__label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 900;
  color: var(--muted);
}
.meta__value{ display:block; margin-top: 6px; font-weight: 900; }

.quick{
  margin-top: 14px;
  display: grid;
  gap: 10px;
}
.quick__item{
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface2) 75%, transparent);
}
.quick__label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 900;
  color: var(--muted);
}
.quick__value{ margin-top: 6px; font-weight: 800; color: var(--text); }

.note{
  margin: 14px 0 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* DL */
.dl{ margin: 0; display: grid; gap: 10px; }
.dl__row dt{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 900;
  color: var(--muted);
}
.dl__row dd{ margin: 6px 0 0 0; font-weight: 900; }

/* Timeline */
.timeline{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.timeline__top{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.timeline__item h3{
  margin: 0;
  letter-spacing: -0.01em;
}
.pill{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 10%, var(--surface2));
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border));
  font-weight: 900;
  color: var(--muted);
  white-space: nowrap;
}

/* Chips */
.chips{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip{
  font-size: 13px;
  font-weight: 800;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface2);
}

/* Skills */
.grid{ display: grid; gap: 12px; }
.grid--2{ grid-template-columns: 1fr 1fr; }
.grid--3{ grid-template-columns: repeat(3, minmax(0,1fr)); }

.skill{ margin-top: 14px; }
.skill__top{
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 900;
}
.bar{
  margin-top: 8px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface2);
  overflow: hidden;
}
.bar__fill{
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 70%, white));
  border-radius: 999px;
  transition: width 900ms ease;
}

/* Lists */
.list{
  margin: 10px 0 0 0;
  padding-left: 18px;
  color: var(--muted);
}
.list li{ margin: 8px 0; }

/* Education */
.edu{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.edu__item{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface2);
}
.two{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Contact */
.contact__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
}
.contact__actions{
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  padding: 18px 0 28px 0;
}
.footer__inner{
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.footer__links{ display: flex; gap: 10px; align-items: center; }
.sep{ opacity: .55; }

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .meta{ grid-template-columns: 1fr; }
  .grid--2{ grid-template-columns: 1fr; }
  .grid--3{ grid-template-columns: 1fr; }
  .two{ grid-template-columns: 1fr; }
  .contact__grid{ grid-template-columns: 1fr; }

  .nav__toggle{ display: inline-flex; }
  .nav__menu{
    display: none;
    position: absolute;
    right: 20px;
    top: 64px;
    flex-direction: column;
    align-items: stretch;
    min-width: 240px;
    padding: 10px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
  }
  .nav__menu.open{ display: flex; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ transition: none !important; animation: none !important; }
}

/* Print */
@media print{
  .header, .hero__cta, .btn, .nav__toggle{ display: none !important; }
  body{ background: white; }
  .card{ box-shadow: none; }
}