:root {
  --bg: #f4f4f6;
  --surface: #ffffff;
  --surface2: #f9f9fb;
  --border: #dcdce4;
  --border2: #eaeaef;
  --text: #18181c;
  --muted: #8a8a9a;
  --subtle: #b0b0c0;
  --accent: #d4820a;
  --accent-bg: #fff7e6;
  --accent2: #2563eb;
  --accent2-bg: #eff4ff;
  --red: #c0392b;
  --green: #1a9e6b;
  --shadow-sm:
    0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md:
    0 4px 16px rgba(0, 0, 0, 0.09), 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-card:
    0 2px 8px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.04);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.55);
  --glass-shine: rgba(255, 255, 255, 0.7);
  --glass-blur: blur(18px) saturate(1.6);
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 10px;
  --r-pill: 20px;
}
[data-theme="dark"] {
  --bg: #0f0f11;
  --surface: #17171a;
  --surface2: #1c1c20;
  --border: #2a2a30;
  --border2: #222228;
  --text: #e8e8ec;
  --muted: #6b6b78;
  --subtle: #44444e;
  --accent: #f5a623;
  --accent-bg: rgba(245, 166, 35, 0.08);
  --accent2: #3d7fff;
  --accent2-bg: rgba(61, 127, 255, 0.1);
  --red: #e05252;
  --green: #3ecf8e;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.55);
  --shadow-card:
    0 2px 8px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0, 0, 0, 0.25);
  --glass-bg: rgba(23, 23, 26, 0.62);
  --glass-border: rgba(255, 255, 255, 0.07);
  --glass-shine: rgba(255, 255, 255, 0.06);
  --glass-blur: blur(20px) saturate(1.8);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 18px;
  scroll-padding-top: 80px;
  scroll-behavior: smooth;
}
body {
  font-family: "IBM Plex Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition:
    background 0.25s,
    color 0.25s;
  line-height: 1.6;
  background-image:
    radial-gradient(
      ellipse 60% 40% at 20% 10%,
      rgba(37, 99, 235, 0.055) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 50% 35% at 80% 80%,
      rgba(212, 130, 10, 0.045) 0%,
      transparent 70%
    );
}
[data-theme="dark"] body {
  background-image:
    radial-gradient(
      ellipse 60% 40% at 20% 10%,
      rgba(61, 127, 255, 0.07) 0%,
      transparent 70%
    ),
    radial-gradient(
      ellipse 50% 35% at 80% 80%,
      rgba(245, 166, 35, 0.05) 0%,
      transparent 70%
    );
}
a {
  color: var(--accent2);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.layout-outer {
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
  box-shadow:
    0 0 0 1px var(--border),
    var(--shadow-md);
  min-height: 100vh;
}
.layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}
.topbar {
  grid-column: 1 / -1;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 28px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow:
    var(--shadow-sm),
    inset 0 1px 0 var(--glass-shine);
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.topbar-wordmark {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.theme-toggle {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 4px 12px;
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    border-color 0.15s,
    color 0.15s;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    var(--shadow-sm);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.sidebar {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  box-shadow: inset -1px 0 0 var(--glass-shine);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  gap: 36px;
  position: sticky;
  top: 52px;
  height: calc(100vh - 52px);
  overflow-y: auto;
}
.avatar-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}
.avatar {
  width: 60px;
  height: 60px;
  border-radius: var(--r-lg);
  background: var(--accent-bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -1px;
  position: relative;
  overflow: hidden;
  box-shadow:
    var(--shadow-sm),
    inset 0 1px 0 var(--glass-shine);
  user-select: none;
}
.avatar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.45) 0%,
    rgba(255, 255, 255, 0) 55%
  );
  border-radius: inherit;
  pointer-events: none;
}
.avatar-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
}
.avatar-role {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 2px;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-bg);
  border: 1px solid var(--accent);
  border-radius: var(--r-md);
  padding: 7px 11px;
  width: 100%;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 1px 4px rgba(0, 0, 0, 0.05);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(30, 180, 110, 0.4);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 4px rgba(30, 180, 110, 0);
  }
}
[data-theme="dark"] .status-dot {
  animation: pulse-dark 2.4s ease-in-out infinite;
}
@keyframes pulse-dark {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(62, 207, 142, 0.4);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 4px rgba(62, 207, 142, 0);
  }
}
.status-text {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.69rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1.4;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar-nav-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--subtle);
  padding: 0 8px;
  margin-bottom: 6px;
  user-select: none;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 8px;
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 400;
  transition:
    background 0.15s,
    color 0.15s,
    padding 0.15s;
  text-decoration: none;
  user-select: none;
}
.sidebar-nav a:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--text);
  padding-left: 10px;
}
.sidebar-nav a:hover .nav-icon {
  opacity: 1;
  color: var(--accent2);
}
.sidebar-nav a .nav-icon {
  font-size: 0.8rem;
  opacity: 0.7;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    opacity 0.15s,
    color 0.15s;
}
.sidebar-nav a .nav-icon svg {
  display: block;
}

.sidebar-contact {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 8px;
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 0.82rem;
  font-family: "IBM Plex Mono", monospace;
  transition: color 0.12s;
  text-decoration: none;
}
.contact-link:hover {
  color: var(--accent2);
  text-decoration: none;
}
.contact-link .icon {
  font-size: 0.78rem;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    opacity 0.15s,
    color 0.15s;
}
.contact-link .icon svg {
  display: block;
}

.main {
  padding: 40px 48px 64px;
  max-width: 820px;
}

/* Section */
.section {
  margin-bottom: 52px;
}
.section-eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--subtle);
  margin-bottom: 16px;
}
.section-title {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 14px;
}
.section-divider {
  width: 32px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  margin-bottom: 20px;
}
p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.75;
  margin-bottom: 12px;
}
p:last-child {
  margin-bottom: 0;
}
p strong {
  color: var(--text);
  font-weight: 500;
}

/* Hero */
.hero {
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.hero-eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent2);
  background: var(--accent2-bg);
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-sm);
  margin-bottom: 20px;
  border: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.hero-name {
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.hero-tagline {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  /*max-width: 520px;*/
  margin-bottom: 28px;
}
.hero-tagline .hl {
  color: var(--accent);
}

/* Focus card — internal note style */
.focus-card {
  background: var(--accent-bg);
  border: 1px solid var(--accent);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  padding: 16px 18px;
  margin-top: 28px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 2px 6px rgba(0, 0, 0, 0.04);
}
.focus-card-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 8px;
}
.focus-card p {
  margin-bottom: 0;
  font-size: 0.88rem;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}
.tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 4px 10px;
  border-radius: var(--r-sm);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}
.tag {
  transition:
    border-color 0.18s,
    color 0.18s,
    box-shadow 0.18s;
}
.tag:hover {
  border-color: var(--accent2);
  color: var(--accent2);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    0 0 0 2px var(--accent2-bg);
}
.tag.accent {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: var(--accent);
}
.tag.blue {
  background: var(--accent2-bg);
  border-color: var(--accent2);
  color: var(--accent2);
}
.tag.green {
  background: rgba(26, 158, 107, 0.08);
  border-color: var(--green);
  color: var(--green);
}

/* Skill rows */
.skill-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.skill-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 16px 18px;
  box-shadow:
    var(--shadow-card),
    inset 0 1px 0 var(--glass-shine);
  position: relative;
  overflow: hidden;
}
.skill-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.9) 40%,
    rgba(255, 255, 255, 0.9) 60%,
    transparent 100%
  );
  pointer-events: none;
}
.skill-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.skill-item-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}
.skill-item-level {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.67rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
}
.skill-bar {
  height: 4px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 10px;
}
.skill-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}
.skill-bar-fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 99px 99px 0 0;
}
.skill-bar-fill.blue {
  background: var(--accent2);
}
.skill-bar-fill.green {
  background: var(--green);
}
.skill-item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.skill-item-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--subtle);
}
.skill-item-tag + .skill-item-tag::before {
  content: "·";
  margin-right: 5px;
}

/* Project cards */
.project-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px 20px;
  box-shadow:
    var(--shadow-card),
    inset 0 1px 0 var(--glass-shine);
  transition:
    border-color 0.18s,
    box-shadow 0.18s,
    transform 0.18s;
  cursor: default;
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.85) 35%,
    rgba(255, 255, 255, 0.85) 65%,
    transparent 100%
  );
  pointer-events: none;
}
.project-card:hover {
  border-color: var(--accent2);
  box-shadow:
    var(--shadow-md),
    0 0 0 1px var(--accent2-bg),
    inset 0 1px 0 var(--glass-shine);
  transform: translateY(-2px);
}
.project-card-icon {
  font-size: 1.2rem;
  margin-bottom: 10px;
  display: block;
  width: 1.25em;
  height: 1.25em;
  display: inline-block;
  vertical-align: middle;
}
.project-card-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.project-card-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 12px;
}
.project-card-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}
.project-card-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.63rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--subtle);
  background: var(--surface2);
  border: 1px solid var(--border2);
  padding: 2px 7px;
  border-radius: var(--r-sm);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border2);
  transition: background-color 0.18s ease;
}
.timeline-item:last-child {
  border-bottom: none;
}
.timeline-item:hover {
  background-color: var(--surface);
}
.timeline-date {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  color: var(--subtle);
  font-weight: 500;
  padding-top: 2px;
}
.timeline-body {
}
.timeline-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 3px;
}
.timeline-sub {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 0;
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-left {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.7rem;
  color: var(--subtle);
}
.footer-left span {
  color: var(--accent);
}

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: inset 0 -1px 0 var(--glass-shine);
    padding: 20px 24px;
    gap: 20px;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .avatar-block {
    flex: 0 0 auto;
    min-width: 200px;
  }
  .sidebar-nav {
    flex: 1 1 160px;
  }
  .sidebar-contact {
    margin-top: 0;
    flex: 1 1 140px;
  }

  .main {
    padding: 32px 28px 56px;
  }
  .hero-name {
    font-size: 2rem;
  }

  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

  .timeline-item {
    grid-template-columns: 90px 1fr;
    gap: 14px;
  }
}

@media (max-width: 740px) {
  .topbar {
    padding: 0 16px;
  }
  .topbar-wordmark {
    font-size: 0.72rem;
  }

  .sidebar {
    padding: 18px 16px;
    gap: 16px;
    flex-direction: column;
  }
  .avatar-block {
    width: 100%;
  }
  .status-badge {
    width: 100%;
  }
  .sidebar-nav {
    display: none;
  }
  .sidebar-contact {
    margin-top: 0;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
    flex: auto;
  }
  .sidebar-contact .sidebar-nav-label {
    display: none;
  }
  .contact-link {
    padding: 4px 8px;
    font-size: 0.75rem;
  }

  .main {
    padding: 24px 16px 48px;
  }
  .hero-name {
    font-size: 1.7rem;
    letter-spacing: -0.01em;
  }
  .hero-tagline {
    font-size: 0.8rem;
  }

  .section-title {
    font-size: 1.2rem;
  }

  .tag-group {
    gap: 5px;
  }
  .tag {
    font-size: 0.65rem;
    padding: 3px 8px;
  }

  .focus-card {
    padding: 13px 14px;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .project-card {
    padding: 15px 16px;
  }

  .skill-item {
    padding: 14px 15px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .timeline-date {
    font-size: 0.66rem;
    padding-top: 0;
    color: var(--accent);
  }

  .footer {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

@media (max-width: 360px) {
  .hero-name {
    font-size: 1.45rem;
  }
  .main {
    padding: 18px 12px 40px;
  }
  .sidebar {
    padding: 14px 12px;
  }
  .topbar {
    padding: 0 12px;
  }
}

[data-theme="dark"] .skill-item::before,
[data-theme="dark"] .project-card::before {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 40%,
    rgba(255, 255, 255, 0.06) 60%,
    transparent 100%
  );
}
[data-theme="dark"] .skill-bar-fill::after {
  background: rgba(255, 255, 255, 0.12);
}
[data-theme="dark"] .tag,
[data-theme="dark"] .project-card-tag {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
[data-theme="dark"] .theme-toggle {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    var(--shadow-sm);
}
[data-theme="dark"] .focus-card {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 2px 6px rgba(0, 0, 0, 0.2);
}
[data-theme="dark"] .status-badge {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 1px 4px rgba(0, 0, 0, 0.2);
}
[data-theme="dark"] .avatar::before {
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0) 55%
  );
}
[data-theme="dark"] .sidebar-nav a:hover {
  background: rgba(61, 127, 255, 0.12);
}