/* ============================================================
   joseruda.com — style.css  v2.0  Direction C: Precision + AI
   Palette: #060A10 · #0AFFE0 · #E8F4F5
   Fonts:   Instrument Serif (display) · Epilogue (body) · DM Mono (labels)
   ============================================================ */

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

:root {
  /* Colors */
  --bg:           #060A10;
  --bg-surface:   #0C1520;
  --bg-card:      #0F1A26;
  --accent:       #0AFFE0;
  --accent-glow:  rgba(10, 255, 224, 0.18);
  --accent-dim:   rgba(10, 255, 224, 0.08);
  --accent-mid:   rgba(10, 255, 224, 0.4);
  --text:         #E8F4F5;
  --text-muted:   rgba(232, 244, 245, 0.45);
  --text-dim:     rgba(232, 244, 245, 0.2);
  --border:       rgba(10, 255, 224, 0.12);
  --border-soft:  rgba(232, 244, 245, 0.07);

  /* Typography */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body:    'Epilogue', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  /* Spacing */
  --sp-xs:  0.5rem;
  --sp-sm:  1rem;
  --sp-md:  1.5rem;
  --sp-lg:  2.5rem;
  --sp-xl:  4.5rem;
  --sp-2xl: 7.5rem;

  /* Layout */
  --max-w:  1100px;
  --nav-h:  64px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Circuit grid overlay — covers entire page */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--accent-dim) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent-dim) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* Dot at grid intersections */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(10,255,224,0.15) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Utility ──────────────────────────────────────────────── */
.section-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-2xl) var(--sp-sm);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  padding: 0.3rem 0.75rem;
  border-radius: 2px;
  margin-bottom: var(--sp-md);
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: var(--sp-xl);
}

/* Teal underline on headings */
.section-heading span {
  position: relative;
}
.section-heading span::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

/* ── Scroll animation ─────────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Navigation ───────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled {
  background: rgba(6, 10, 16, 0.92);
  border-bottom-color: var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  padding: 0 var(--sp-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--accent);
  transition: opacity 0.2s;
}
.nav-logo:hover { opacity: 0.7; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
}

.nav-links li a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-links li a:hover { color: var(--accent); }

.nav-cta {
  font-family: var(--font-mono) !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.15em !important;
  color: var(--accent) !important;
  border: 1px solid var(--border) !important;
  padding: 0.45rem 1.1rem;
  border-radius: 2px;
  transition: background 0.2s, box-shadow 0.2s !important;
}
.nav-cta:hover {
  background: var(--accent-dim) !important;
  box-shadow: 0 0 12px var(--accent-glow) !important;
  color: var(--accent) !important;
}

/* ── Hero ─────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--sp-xl) var(--sp-sm);
  overflow: hidden;
  z-index: 1;
}

/* Radial spotlight */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 40%, rgba(10,255,224,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Corner bracket decorations */
.hero-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: var(--accent-mid);
  border-style: solid;
  opacity: 0;
  animation: heroFadeUp 0.5s ease both;
  animation-delay: 2s;
}
.hero-corner--tl { top: 20%; left: 8%;  border-width: 1px 0 0 1px; }
.hero-corner--tr { top: 20%; right: 8%; border-width: 1px 1px 0 0; }
.hero-corner--bl { bottom: 20%; left: 8%;  border-width: 0 0 1px 1px; }
.hero-corner--br { bottom: 20%; right: 8%; border-width: 0 1px 1px 0; }

.hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-industry {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  padding: 0.35rem 1rem;
  border-radius: 2px;
  margin-bottom: var(--sp-lg);
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 0.1s;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 8.5rem);
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  line-height: 0.95;
  letter-spacing: -0.01em;
  animation: heroSlideUp 1s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: 0.3s;
}

/* Teal glow on name */
.hero-name-glow {
  color: var(--accent);
  text-shadow: 0 0 40px rgba(10,255,224,0.4), 0 0 80px rgba(10,255,224,0.15);
}

.hero-rule {
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin: var(--sp-lg) auto;
  animation: heroExpand 0.7s ease both;
  animation-delay: 0.9s;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(0.65rem, 1.2vw, 0.8rem);
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 1.1s;
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  font-weight: 300;
  color: var(--text-muted);
  max-width: 500px;
  margin-top: var(--sp-md);
  line-height: 1.8;
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 1.3s;
}

.hero-cta {
  display: inline-block;
  margin-top: var(--sp-xl);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-mid);
  padding: 0.85rem 2.5rem;
  border-radius: 2px;
  transition: background 0.25s, box-shadow 0.25s;
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 1.55s;
}
.hero-cta:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 24px var(--accent-glow), inset 0 0 24px var(--accent-dim);
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 2s;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollPulse 2.5s ease-in-out infinite;
}

/* Hero keyframes */
@keyframes heroSlideUp {
  from { opacity: 0; transform: translateY(48px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes heroExpand {
  from { opacity: 0; transform: scaleY(0); }
  to   { opacity: 1; transform: scaleY(1); }
}
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 1; }
}

/* ── About ────────────────────────────────────────────────── */
#about {
  background: var(--bg-surface);
  position: relative;
  z-index: 1;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-2xl);
  align-items: start;
}

.about-summary p {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-muted);
}
.about-summary p + p { margin-top: var(--sp-md); }

.about-facts {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.fact-item {
  padding: var(--sp-sm) var(--sp-md);
  border: 1px solid var(--border-soft);
  border-left: 2px solid var(--accent-mid);
  background: var(--bg-card);
  border-radius: 0 2px 2px 0;
  transition: border-left-color 0.2s, box-shadow 0.2s;
}
.fact-item:hover {
  border-left-color: var(--accent);
  box-shadow: -4px 0 16px rgba(10,255,224,0.1);
}

.fact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.fact-value {
  display: block;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}

/* ── Skills ───────────────────────────────────────────────── */
#skills {
  background: var(--bg);
  position: relative;
  z-index: 1;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-sm);
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-top: 1px solid var(--accent-mid);
  padding: var(--sp-lg) var(--sp-md);
  border-radius: 2px;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.skill-card:hover {
  border-color: var(--border);
  box-shadow: 0 0 32px rgba(10,255,224,0.07), 0 4px 24px rgba(0,0,0,0.4);
  transform: translateY(-3px);
}
.skill-card:hover::before { opacity: 1; }

.skill-icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
  margin-bottom: var(--sp-sm);
  opacity: 0.8;
}

.skill-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: var(--sp-xs);
}

.skill-desc {
  font-family: var(--font-body);
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Skill icon wrap */
.skill-icon-wrap {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--accent-dim);
  margin-bottom: var(--sp-sm);
  transition: box-shadow 0.25s;
}
.skill-icon-wrap svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
}
.skill-card:hover .skill-icon-wrap {
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Skill tags */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--sp-sm);
}
.skill-tags span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

/* Certification banner */
.cert-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  background: var(--bg-card);
  border: 1px solid var(--accent-mid);
  border-left: 3px solid var(--accent);
  padding: var(--sp-md) var(--sp-lg);
  border-radius: 2px;
  margin-bottom: var(--sp-lg);
  box-shadow: 0 0 24px rgba(10,255,224,0.06);
}

.cert-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent-mid);
  border-radius: 50%;
  background: var(--accent-dim);
  flex-shrink: 0;
}
.cert-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.cert-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.cert-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}
.cert-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--text);
}

.cert-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--bg);
  background: var(--accent);
  padding: 0.3rem 0.8rem;
  border-radius: 2px;
  flex-shrink: 0;
}

/* Stagger */
.skills-grid .skill-card:nth-child(1) { transition-delay: 0s; }
.skills-grid .skill-card:nth-child(2) { transition-delay: 0.07s; }
.skills-grid .skill-card:nth-child(3) { transition-delay: 0.14s; }
.skills-grid .skill-card:nth-child(4) { transition-delay: 0.07s; }
.skills-grid .skill-card:nth-child(5) { transition-delay: 0.14s; }
.skills-grid .skill-card:nth-child(6) { transition-delay: 0.21s; }

/* ── Experience ───────────────────────────────────────────── */
#experience {
  background: var(--bg-surface);
  position: relative;
  z-index: 1;
}

.timeline {
  position: relative;
  padding-left: 2.5rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-mid), transparent);
}

.timeline-entry {
  position: relative;
  padding-left: 2rem;
  padding-bottom: var(--sp-2xl);
}
.timeline-entry:last-child { padding-bottom: 0; }

/* Teal dot */
.timeline-entry::before {
  content: '';
  position: absolute;
  left: calc(-0.5rem + 1px);
  top: 0.45rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow), 0 0 16px rgba(10,255,224,0.15);
}

.entry-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin-bottom: var(--sp-xs);
}

.entry-role {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  font-style: italic;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: var(--sp-xs);
}

.entry-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 620px;
}

/* ── Contact ──────────────────────────────────────────────── */
#contact {
  background: var(--bg);
  position: relative;
  z-index: 1;
}

#contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(10,255,224,0.04) 0%, transparent 60%);
  pointer-events: none;
}

#contact .section-inner {
  text-align: center;
}

#contact .section-heading {
  color: var(--text);
}

.contact-intro {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-xl);
}

.contact-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xl);
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border: 1px solid var(--border-soft);
  padding: var(--sp-sm) var(--sp-lg);
  border-radius: 2px;
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.contact-link:hover {
  color: var(--accent);
  border-color: var(--accent-mid);
  box-shadow: 0 0 20px var(--accent-glow);
}
.contact-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.6;
  transition: opacity 0.2s;
}
.contact-link:hover svg { opacity: 1; }

.site-footer {
  margin-top: var(--sp-2xl);
  padding-top: var(--sp-lg);
  border-top: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1023px) {
  .about-grid { grid-template-columns: 1fr; gap: var(--sp-xl); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-corner { display: none; }
}

@media (max-width: 639px) {
  :root { --sp-2xl: 4rem; --sp-xl: 2.5rem; }
  .skills-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .nav-mobile-cta { display: inline-block !important; }
  .contact-links { flex-direction: column; gap: var(--sp-md); }
}

/* ── Reduced motion ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero-name, .hero-industry, .hero-rule, .hero-title,
  .hero-tagline, .hero-cta, .scroll-indicator, .hero-corner {
    animation: none !important; opacity: 1 !important; transform: none !important;
  }
  .scroll-line { animation: none !important; }
  .skill-card { transition: none !important; }
}