/* ==========================================================================
   Raul Brakemann — Portfolio
   Enterprise meets edgy: dark canvas, precise grid, neon accent gradients.
   ========================================================================== */

:root {
  --bg: #07080b;
  --bg-alt: #0c0e14;
  --surface: #12151d;
  --surface-2: #171b25;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #eef0f5;
  --text-dim: #9aa0ae;
  --text-faint: #5d6270;
  --accent: #7c5cff;
  --accent-2: #00e5c7;
  --accent-3: #ff3d68;
  --gradient: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  --gradient-hot: linear-gradient(120deg, var(--accent-3) 0%, var(--accent) 100%);
  --font-head: 'Space Grotesk', 'Sora', sans-serif;
  --font-body: 'Sora', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 14px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

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

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute;
  top: -48px; left: 12px;
  z-index: 200;
  background: var(--accent);
  color: #06070a;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 10px 18px;
  border-radius: 8px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- noise + cursor glow ---------- */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,92,255,0.10) 0%, rgba(124,92,255,0) 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.3s;
  will-change: transform;
}

/* ---------- nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), padding 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(7, 8, 11, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--border);
  padding: 14px 0;
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.nav-logo-dot { color: var(--accent-2); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.nav-links a { transition: color 0.2s; position: relative; }
.nav-links a:hover { color: var(--text); }
.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0%; height: 1px;
  background: var(--gradient);
  transition: width 0.25s var(--ease);
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 8px 18px;
  border-radius: 100px;
  transition: all 0.25s var(--ease);
}
.nav-cta:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(124,92,255,0.35);
}

/* ---------- language switcher ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 10px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}
.lang-flag {
  width: 26px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  background: var(--surface);
  opacity: 0.55;
  transition: all 0.22s var(--ease);
  line-height: 0;
}
.lang-flag svg { width: 100%; height: 100%; display: block; }
.lang-flag:hover { opacity: 0.9; transform: translateY(-1px); }
.lang-flag.is-active {
  opacity: 1;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 2px rgba(0,229,199,0.18), 0 4px 14px -4px rgba(0,229,199,0.4);
}

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 32px 100px;
  overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; z-index: 0; }

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black 30%, transparent 75%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}
.glow-1 {
  width: 560px; height: 560px;
  background: var(--accent);
  top: -160px; left: 8%;
  animation: drift1 16s ease-in-out infinite alternate;
}
.glow-2 {
  width: 460px; height: 460px;
  background: var(--accent-2);
  bottom: -180px; right: 6%;
  opacity: 0.35;
  animation: drift2 18s ease-in-out infinite alternate;
}
@keyframes drift1 { to { transform: translate(40px, 30px) scale(1.08); } }
@keyframes drift2 { to { transform: translate(-30px, -20px) scale(1.1); } }

.hero-content { position: relative; z-index: 1; max-width: 1080px; width: 100%; }

.hero-columns {
  display: flex;
  align-items: center;
  gap: 56px;
  text-align: left;
}

.hero-photo-wrap { flex-shrink: 0; }

.hero-photo {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 12%;
  border: 2px solid var(--border-strong);
  box-shadow: 0 0 0 8px rgba(124,92,255,0.08), 0 20px 50px -18px rgba(124,92,255,0.5);
}

.hero-text { flex: 1; min-width: 0; }

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 22px;
}

.hero-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin-bottom: 26px;
}

.text-outline {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 0 30px;
  font-weight: 300;
}
.hero-subtitle .accent { color: var(--accent-2); font-weight: 500; }

.hero-meta {
  display: flex;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 12px 22px;
  font-size: 0.88rem;
  color: var(--text-faint);
  margin-bottom: 40px;
  font-family: var(--font-mono);
}

.hero-actions { display: flex; justify-content: flex-start; gap: 16px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: 100px;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #06070a;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -8px rgba(124,92,255,0.55); }

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent-2); background: rgba(0,229,199,0.06); transform: translateY(-2px); }
.btn .arrow { transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translate(2px, -2px); }

.scroll-cue {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.scroll-cue span {
  width: 1px; height: 40px;
  background: linear-gradient(var(--accent-2), transparent);
  animation: scrollpulse 1.8s ease-in-out infinite;
}
@keyframes scrollpulse { 0%,100% { opacity: 0.2; } 50% { opacity: 1; } }

/* ---------- sections common ---------- */
.section { position: relative; padding: 130px 0; z-index: 1; }
.section-head { max-width: 640px; margin-bottom: 64px; }
.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent-2);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-head h2 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.section-desc { color: var(--text-dim); margin-top: 16px; font-size: 1rem; max-width: 560px; }

/* ---------- reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }

/* ---------- about ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
}
.about-text p { color: var(--text-dim); margin-bottom: 18px; font-size: 1.02rem; }
.about-text strong { color: var(--text); font-weight: 600; }

.about-side { display: flex; flex-direction: column; gap: 16px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.25s, transform 0.25s;
}
.stat-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.stat-number {
  display: block;
  font-family: var(--font-head);
  font-size: 2.1rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label { color: var(--text-dim); font-size: 0.85rem; }

.lang-bars { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
.lang-bar-head {
  display: flex; justify-content: space-between;
  font-size: 0.82rem; color: var(--text-dim); margin-bottom: 6px;
  font-family: var(--font-mono);
}
.lang-bar-track { height: 5px; background: var(--surface-2); border-radius: 4px; overflow: hidden; }
.lang-bar-fill {
  height: 100%; width: var(--w);
  background: var(--gradient);
  border-radius: 4px;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.1s var(--ease);
}
.lang-bar.in-view .lang-bar-fill { transform: scaleX(1); }

/* ---------- timeline ---------- */
.timeline {
  position: relative;
  padding-left: 40px;
  border-left: 1px solid var(--border);
}
.timeline-item { position: relative; margin-bottom: 48px; }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -45px; top: 6px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(124,92,255,0.12);
}
.timeline-dot-edu { border-color: var(--accent-2); box-shadow: 0 0 0 4px rgba(0,229,199,0.12); }

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 30px;
  transition: border-color 0.3s, transform 0.3s;
}
.timeline-card:hover { border-color: var(--border-strong); transform: translateX(4px); }

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-2);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.timeline-card h3 {
  font-family: var(--font-head);
  font-size: 1.24rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.timeline-company {
  display: block;
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 16px;
}
.timeline-card ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.timeline-card li {
  color: var(--text-dim);
  font-size: 0.93rem;
  padding-left: 18px;
  position: relative;
}
.timeline-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.timeline-education .timeline-card { padding: 22px 30px; }

.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 5px 12px;
  border-radius: 100px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

/* ---------- expertise ---------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}
.expertise-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.expertise-card::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 0;
}
.expertise-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
}
.expertise-card:hover::before { opacity: 0.06; }
.expertise-icon {
  font-size: 1.6rem;
  color: var(--accent-2);
  margin-bottom: 18px;
  position: relative; z-index: 1;
}
.expertise-card h3 { font-family: var(--font-head); font-size: 1.08rem; margin-bottom: 10px; position: relative; z-index: 1; }
.expertise-card p { color: var(--text-dim); font-size: 0.9rem; position: relative; z-index: 1; }

.certs { border-top: 1px solid var(--border); padding-top: 40px; }
.certs-title { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 20px; }
.certs-list { display: flex; flex-wrap: wrap; gap: 10px; }
.cert-pill {
  font-size: 0.82rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 100px;
  transition: border-color 0.25s, color 0.25s;
}
.cert-pill:hover { border-color: var(--accent-2); color: var(--text); }

/* ---------- portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.portfolio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  cursor: default;
  transition: transform 0.3s var(--ease), border-color 0.3s;
  position: relative;
}
.portfolio-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.portfolio-card-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 22px;
}
.portfolio-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-3);
  border: 1px solid rgba(255,61,104,0.3);
  background: rgba(255,61,104,0.08);
  padding: 4px 10px;
  border-radius: 100px;
}
.portfolio-lock { opacity: 0.5; }
.portfolio-card h3 { font-family: var(--font-head); font-size: 1.1rem; margin-bottom: 10px; }
.portfolio-card p { color: var(--text-dim); font-size: 0.9rem; }

/* ---------- contact ---------- */
.contact { text-align: center; }
.contact-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.contact-glow {
  position: absolute;
  top: -80px; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 400px;
  background: var(--gradient);
  filter: blur(140px);
  opacity: 0.18;
  z-index: -1;
}
.contact h2 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 18px 0 36px;
  line-height: 1.15;
}
.contact-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-bottom: 24px; }
.contact-location { color: var(--text-faint); font-family: var(--font-mono); font-size: 0.85rem; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.82rem; color: var(--text-faint);
}
.footer-top { transition: color 0.2s; }
.footer-top:hover { color: var(--accent-2); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-columns { flex-direction: column; text-align: center; gap: 32px; }
  .hero-photo { width: 160px; height: 160px; }
  .hero-subtitle { margin: 0 auto 30px; }
  .hero-meta, .hero-actions { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed;
    top: 64px; right: 20px; left: 20px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    gap: 18px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-toggle { display: flex; }
  .lang-switch { border-left: none; border-top: 1px solid var(--border); padding-left: 0; padding-top: 14px; margin-left: 0; width: 100%; }
  .expertise-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 28px; }
  .timeline-dot { left: -33px; }
  .section { padding: 90px 0; }
}