.container { width: min(calc(100% - 2rem), var(--max-width)); margin-inline: auto; }
.section { position: relative; padding-block: clamp(4.5rem, 8vw, 7.5rem); }
.section-dark { background: var(--bg); color: var(--text); }
.section-white { background: var(--surface-white); }
.section-muted { background: var(--surface-light); }

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  color: var(--text);
  background: rgba(7, 17, 31, .9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.header-inner {
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.4rem;
}
.primary-nav { justify-self: center; }
.header-actions { display: flex; align-items: center; gap: .65rem; }
.menu-toggle { display: none; }

.hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(5rem, 9vw, 8.5rem) 2rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 74% 18%, rgba(47, 125, 246, .17), transparent 32%),
    linear-gradient(140deg, #07111f 0%, #09192d 58%, #0b1d34 100%);
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, .72fr);
  gap: clamp(2.5rem, 6vw, 6.5rem);
  align-items: center;
}
.hero-copy { min-width: 0; max-width: 760px; }
.hero-portrait-wrap { justify-self: end; width: min(100%, 430px); min-width: 0; }
.portrait-frame { position: relative; }
.hero-portrait {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 1.6rem;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 28px 80px rgba(0,0,0,.28);
}
.portrait-badge {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-end: 1rem;
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .65rem .85rem;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  background: rgba(7, 17, 31, .82);
  color: #fff;
  font-size: .82rem;
  font-weight: 700;
  backdrop-filter: blur(12px);
}
.portrait-badge span { width: .5rem; height: .5rem; border-radius: 50%; background: #46d98e; box-shadow: 0 0 0 4px rgba(70,217,142,.12); }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(2px); opacity: .55; pointer-events: none; }
.hero-orb-one { width: 340px; height: 340px; inset-inline-end: -130px; inset-block-start: 80px; border: 1px solid rgba(83,145,255,.25); }
.hero-orb-two { width: 180px; height: 180px; inset-inline-start: -75px; inset-block-end: 90px; border: 1px solid rgba(83,145,255,.16); }

.kpi-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: .75rem;
  margin-block-start: clamp(3rem, 7vw, 5.5rem);
  padding-block: 1.3rem 0;
  border-top: 1px solid var(--border);
}

.split-intro {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}
.section-heading { max-width: 800px; margin-block-end: clamp(2rem, 5vw, 3.5rem); }
.compact-heading { margin-block-end: 1.8rem; }
.competency-block { margin-block-start: clamp(4rem, 7vw, 6rem); }
.card-grid { display: grid; gap: 1rem; }
.card-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.competency-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.portfolio-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.education-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.site-footer { padding-block: 1.6rem; border-top: 1px solid var(--border); }
.site-footer p { margin: 0; color: var(--muted); font-size: .86rem; }

@media (max-width: 1040px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .primary-nav { gap: .8rem; }
  .primary-nav a { font-size: .9rem; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(260px, .65fr); }
  .card-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .header-inner { grid-template-columns: auto 1fr auto; gap: .8rem; }
  .menu-toggle { display: inline-grid; justify-self: end; }
  .primary-nav {
    position: absolute;
    inset-inline: 1rem;
    inset-block-start: calc(100% + .35rem);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: .75rem;
    border: 1px solid var(--border);
    border-radius: 1rem;
    background: #0b1729;
    box-shadow: var(--shadow);
  }
  .primary-nav[data-open="true"] { display: flex; }
  .primary-nav a { padding: .75rem .85rem; border-radius: .65rem; }
  .header-actions { justify-self: end; }
  .header-cv { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-portrait-wrap { grid-row: 1; justify-self: center; width: min(72vw, 360px); }
  .hero-copy { text-align: center; margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .split-intro { grid-template-columns: 1fr; gap: 1.5rem; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 1.4rem), var(--max-width)); }
  .section { padding-block: 4.25rem; }
  .kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-grid-4, .portfolio-grid, .competency-grid, .education-grid { grid-template-columns: 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .hero { padding-block-start: 3.7rem; }
}

@media (max-width: 520px) {
  .brand { font-size: 1rem; }
  .header-inner { min-height: 68px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .kpi-grid { gap: .55rem; }
  .contact-grid { gap: 2rem; }
}