/* ── Design System ──────────────────────────── */

:root {
  --color-bg: #0b111c;
  --color-surface: #121a29;
  --color-border: #1f2a3d;
  --color-text: #eef2f7;
  --color-text-muted: #a7b1c2;
  --color-accent: #d5a25f;
  --color-accent-hover: #e0b677;
  --color-accent-dim: rgba(213, 162, 95, 0.15);
  --font-stack: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
  --font-stack-sans: "IBM Plex Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --max-width: 68rem;
  --nav-height: 3.75rem;
  --radius-sm: 0.375rem;
  --radius-pill: 50rem;
  --transition-base: 200ms ease;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: radial-gradient(1200px 600px at 80% -10%, rgba(213, 162, 95, 0.15), transparent 60%),
    linear-gradient(180deg, #0b111c 0%, #0e1626 100%);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section[id] {
  scroll-margin-top: var(--nav-height);
}

/* ── Section headings ───────────────────────── */

.about h2,
.career h2,
.certifications h2,
.skills h2,
.services h2,
.contact h2 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 2.5rem;
}

.certifications h2,
.skills h2,
.services h2,
.contact h2 {
  text-align: center;
}

/* ── Navigation ─────────────────────────────── */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(11, 17, 28, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.site-nav.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.nav-initials {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 1px solid rgba(213, 162, 95, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-stack-sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-accent);
}

.nav-name {
  font-family: var(--font-stack-sans);
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin-left: auto;
}

.nav-link {
  font-family: var(--font-stack-sans);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background var(--transition-base);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text);
  background: var(--color-accent-dim);
}

.nav-link.nav-cta {
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 0.375rem 1rem;
}

.nav-link.nav-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  margin-left: auto;
  color: var(--color-text);
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after  { top: 7px; }

/* ── Hero ──────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 2rem) 1.5rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -30% auto;
  width: 40rem;
  height: 40rem;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 70%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: var(--font-stack-sans);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero .tagline {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 36rem;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--color-accent);
  color: var(--color-bg);
  text-decoration: none;
  font-family: var(--font-stack-sans);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base);
}

.cta-button:hover {
  background: var(--color-accent-hover);
}

.cta-button--outline {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.cta-button--outline:hover {
  background: var(--color-accent-dim);
  color: var(--color-accent-hover);
}

.cta-button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  text-decoration: none;
  animation: bounce 2s ease infinite;
  opacity: 0.6;
  transition: opacity var(--transition-base);
}

.scroll-indicator:hover {
  opacity: 1;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── About ──────────────────────────────────── */

.about {
  padding: 6rem 1.5rem;
}

.about-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3rem;
  align-items: start;
}

.about-avatar {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 2px solid rgba(213, 162, 95, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-stack-sans);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  flex-shrink: 0;
}

.about-text h2 {
  margin-bottom: 1.25rem;
}

.about-text p {
  color: var(--color-text-muted);
  max-width: 54rem;
  margin-bottom: 1rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

/* ── Career Timeline ────────────────────────── */

.career {
  padding: 6rem 1.5rem;
}

.timeline {
  list-style: none;
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 3rem 2rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -1.5rem;
  top: 0.4rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--color-border);
  border: 2px solid var(--color-border);
  transform: translateX(calc(-50% + 1px));
}

.timeline-item--current .timeline-marker {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-dim);
}

.timeline-company {
  display: block;
  font-family: var(--font-stack-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.2rem;
}

.timeline-date {
  display: block;
  font-family: var(--font-stack-sans);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.timeline-role {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.625rem;
}

.timeline-content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 50rem;
}

/* ── Certifications ─────────────────────────── */

.certifications {
  padding: 6rem 1.5rem;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.5rem;
}

.cert-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 2rem;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.cert-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.cert-icon {
  display: block;
  margin-bottom: 1.25rem;
}

.cert-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.3rem;
}

.cert-level {
  font-family: var(--font-stack-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.3rem;
}

.cert-issuer {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ── Skills ─────────────────────────────────── */

.skills {
  padding: 6rem 1.5rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 2rem;
}

.skill-group h3 {
  font-family: var(--font-stack-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
  padding-bottom: 0.625rem;
  border-bottom: 1px dashed var(--color-border);
}

.skill-group ul {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.skill-group li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.skill-group li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ── Services ──────────────────────────────── */

.services {
  padding: 6rem 1.5rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 2rem;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-2px);
  border-color: rgba(213, 162, 95, 0.35);
}

.service-icon {
  display: block;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  opacity: 0.85;
}

.service-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  color: var(--color-accent);
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ── Contact ───────────────────────────────── */

.contact {
  padding: 6rem 1.5rem;
}

.contact > .container > p {
  color: var(--color-text-muted);
  max-width: 32rem;
  margin: 0 auto 2rem;
  text-align: center;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent);
  text-decoration: none;
  font-family: var(--font-stack-sans);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), background var(--transition-base);
}

.contact-link:hover {
  border-color: var(--color-accent);
  background: var(--color-surface);
}

.contact-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.contact-link--primary {
  background: var(--color-accent-dim);
  border-color: rgba(213, 162, 95, 0.3);
}

.contact-link--primary:hover {
  background: rgba(213, 162, 95, 0.25);
  border-color: var(--color-accent);
}

/* ── Footer ────────────────────────────────── */

footer {
  padding: 1.75rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-family: var(--font-stack-sans);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-languages {
  display: flex;
  gap: 0.375rem;
  flex-wrap: wrap;
}

.lang-badge {
  font-family: var(--font-stack-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  cursor: default;
}

.lang-badge--dim {
  opacity: 0.4;
}

.footer-social {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-base);
  display: flex;
  align-items: center;
}

.footer-social:hover {
  color: var(--color-accent);
}

/* ── Reveal animation ───────────────────────── */

.reveal {
  animation: fadeUp 600ms ease both;
  animation-play-state: paused;
}

.reveal.is-visible {
  animation-play-state: running;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Reduced motion ─────────────────────────── */

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

/* ── Mobile ─────────────────────────────────── */

@media (max-width: 640px) {
  .nav-name {
    display: none;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    transform: translateX(100%);
    transition: transform 300ms ease;
    z-index: 99;
  }

  .nav-links.is-open {
    transform: translateX(0);
  }

  .nav-link {
    font-size: 1.25rem;
    padding: 0.75rem 1.5rem;
  }

  .nav-link.nav-cta {
    font-size: 1.25rem;
    padding: 0.75rem 2rem;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}