/* Portfolio — 2025 system: tokens, a11y, motion, glass surfaces */
:root {
  color-scheme: dark;
  --pf-bg-deep: #080a0e;
  --pf-surface: #0e1218;
  --pf-surface-2: #151b24;
  --pf-surface-glass: rgba(18, 23, 31, 0.72);
  --pf-border: rgba(255, 255, 255, 0.065);
  --pf-border-strong: rgba(61, 214, 198, 0.22);
  --pf-text: #eef1f7;
  --pf-muted: #94a0b0;
  --pf-accent: #3ee7d6;
  --pf-accent-dim: #26a89a;
  --pf-accent-glow: rgba(62, 231, 214, 0.14);
  --pf-warn: #f0a06c;
  --pf-radius: 14px;
  --pf-radius-sm: 10px;
  --pf-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  --pf-shadow-hover: 0 20px 56px rgba(0, 0, 0, 0.5);
  --pf-font: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --pf-mono: "JetBrains Mono", ui-monospace, monospace;
  --pf-ease: cubic-bezier(0.33, 1, 0.68, 1);
  --pf-tap: 44px;
}

::selection {
  background: rgba(62, 231, 214, 0.28);
  color: var(--pf-text);
}

.layout--home .page__content,
.page__content {
  font-family: var(--pf-font);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
}

/* Page backdrop — subtle depth (Minimal Mistakes layout) */
.layout--home,
.layout--single {
  background: radial-gradient(ellipse 120% 80% at 50% -20%, rgba(38, 168, 154, 0.07), transparent 50%),
    var(--pf-bg-deep);
}

.portfolio-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 0.25rem;
}

.portfolio-hero {
  position: relative;
  padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 2rem;
  border-radius: calc(var(--pf-radius) + 4px);
  background: linear-gradient(145deg, var(--pf-surface-glass) 0%, rgba(12, 16, 22, 0.95) 100%);
  border: 1px solid var(--pf-border-strong);
  box-shadow: var(--pf-shadow);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.portfolio-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 90% 70% at 100% 0%, var(--pf-accent-glow), transparent 50%),
    radial-gradient(ellipse 60% 50% at 0% 100%, rgba(99, 102, 241, 0.06), transparent 45%);
  pointer-events: none;
}

.portfolio-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
  mix-blend-mode: overlay;
}

.portfolio-hero__inner {
  position: relative;
  z-index: 1;
}

.portfolio-eyebrow {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pf-accent);
  margin-bottom: 0.75rem;
}

.portfolio-hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.7rem, 4.2vw, 2.35rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--pf-text);
}

.portfolio-lead {
  font-size: 1.0625rem;
  line-height: 1.68;
  color: var(--pf-muted);
  margin: 0 0 1.35rem;
  max-width: 54ch;
}

.portfolio-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
}

.pf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--pf-tap);
  padding: 0.55rem 1.2rem;
  border-radius: var(--pf-radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none !important;
  border: 1px solid transparent;
  transition: transform 0.2s var(--pf-ease), box-shadow 0.2s var(--pf-ease), background 0.2s var(--pf-ease),
    border-color 0.2s var(--pf-ease), filter 0.2s var(--pf-ease);
}

.pf-btn:focus-visible {
  outline: 2px solid var(--pf-accent);
  outline-offset: 3px;
}

.pf-btn--primary {
  background: linear-gradient(135deg, var(--pf-accent-dim) 0%, var(--pf-accent) 100%);
  color: #051816 !important;
  border-color: rgba(62, 231, 214, 0.45);
  box-shadow: 0 4px 20px rgba(38, 168, 154, 0.35);
}

.pf-btn--primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 8px 28px rgba(38, 168, 154, 0.4);
}

.pf-btn--primary:active {
  transform: translateY(0);
}

.pf-btn--ghost {
  background: rgba(255, 255, 255, 0.035);
  color: var(--pf-text) !important;
  border-color: var(--pf-border);
  backdrop-filter: blur(8px);
}

.pf-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(62, 231, 214, 0.35);
}

.pf-btn--ghost:active {
  transform: scale(0.98);
}

.portfolio-section {
  margin-bottom: 2.75rem;
}

.portfolio-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.65rem;
  margin-bottom: 1.15rem;
}

.portfolio-section__head h2 {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--pf-text);
}

.portfolio-section__head p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--pf-muted);
  max-width: 44ch;
}

.pf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 1.1rem;
}

.pf-card {
  position: relative;
  background: var(--pf-surface-glass);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius);
  padding: 1.3rem 1.4rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.25s var(--pf-ease), box-shadow 0.25s var(--pf-ease), transform 0.25s var(--pf-ease);
}

.pf-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(62, 231, 214, 0.15), transparent 40%, transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s var(--pf-ease);
}

.pf-card:hover {
  border-color: rgba(62, 231, 214, 0.28);
  box-shadow: var(--pf-shadow-hover);
  transform: translateY(-4px);
}

.pf-card:hover::before {
  opacity: 1;
}

.pf-card:focus-within {
  border-color: rgba(62, 231, 214, 0.35);
  box-shadow: 0 0 0 1px rgba(62, 231, 214, 0.12);
}

.pf-card__badge {
  display: inline-block;
  font-family: var(--pf-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pf-warn);
  margin-bottom: 0.5rem;
}

.pf-card__badge--live {
  color: var(--pf-accent);
}

.pf-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--pf-text);
}

.pf-card p {
  margin: 0 0 0.9rem;
  font-size: 0.921rem;
  line-height: 1.58;
  color: var(--pf-muted);
}

.pf-card a {
  font-weight: 600;
  color: var(--pf-accent) !important;
  text-decoration: none !important;
  border-radius: 4px;
}

.pf-card a:focus-visible {
  outline: 2px solid var(--pf-accent);
  outline-offset: 2px;
}

.pf-card a:hover {
  text-decoration: underline !important;
}

.pf-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.pf-pill {
  font-family: var(--pf-mono);
  font-size: 0.7rem;
  font-weight: 450;
  padding: 0.3rem 0.55rem;
  border-radius: 7px;
  background: rgba(62, 231, 214, 0.07);
  color: var(--pf-accent);
  border: 1px solid rgba(62, 231, 214, 0.18);
}

.pf-cloud-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
}

.pf-cloud-block {
  background: var(--pf-surface);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-sm);
  padding: 1.05rem 1.15rem;
  transition: border-color 0.2s ease;
}

.pf-cloud-block:hover {
  border-color: rgba(62, 231, 214, 0.2);
}

.pf-cloud-block h3 {
  margin: 0 0 0.65rem;
  font-size: 0.95rem;
  font-weight: 650;
  color: var(--pf-text);
}

.pf-cloud-block ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--pf-muted);
  font-size: 0.875rem;
  line-height: 1.55;
}

.pf-ai-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.pf-ai-stack span {
  font-size: 0.86rem;
  padding: 0.45rem 0.7rem;
  border-radius: var(--pf-radius-sm);
  background: var(--pf-surface-2);
  border: 1px solid var(--pf-border);
  color: var(--pf-text);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.pf-ai-stack span:hover {
  border-color: rgba(62, 231, 214, 0.25);
  background: rgba(62, 231, 214, 0.05);
}

.pf-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pf-border), transparent);
  margin: 2.25rem 0;
  border: 0;
}

/* Featured apps banner */
.pf-apps-banner {
  margin-bottom: 2.75rem;
  padding: clamp(1.5rem, 3vw, 2rem);
  border-radius: calc(var(--pf-radius) + 2px);
  background: linear-gradient(165deg, rgba(62, 231, 214, 0.08) 0%, var(--pf-surface) 55%);
  border: 1px solid var(--pf-border-strong);
  box-shadow: var(--pf-shadow);
  backdrop-filter: blur(14px);
}

.pf-apps-banner__eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.6875rem;
  font-weight: 650;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pf-accent);
}

.pf-apps-banner__heading {
  margin: 0 0 1.35rem;
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--pf-text);
}

.pf-apps-banner__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.pf-apps-banner__card {
  background: rgba(8, 10, 14, 0.55);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius);
  padding: 1.2rem 1.3rem 1.4rem;
  transition: border-color 0.2s ease, transform 0.2s var(--pf-ease);
}

.pf-apps-banner__card:hover {
  border-color: rgba(62, 231, 214, 0.3);
  transform: translateY(-2px);
}

.pf-apps-banner__card-head {
  margin-bottom: 0.65rem;
}

.pf-apps-banner__card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--pf-text);
}

.pf-apps-banner__url {
  font-size: 0.8125rem;
  font-family: var(--pf-mono);
  color: var(--pf-accent) !important;
  text-decoration: none !important;
  word-break: break-all;
}

.pf-apps-banner__url:focus-visible {
  outline: 2px solid var(--pf-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.pf-apps-banner__url:hover {
  text-decoration: underline !important;
}

.pf-apps-banner__card p {
  margin: 0 0 1.05rem;
  font-size: 0.93rem;
  line-height: 1.58;
  color: var(--pf-muted);
}

.pf-apps-banner .pf-btn--primary {
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  min-height: 40px;
}

.author__avatar img {
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.sidebar .author__bio {
  color: var(--pf-muted);
  line-height: 1.55;
}

/* Inner pages */
.pf-prose h2 {
  margin-top: 2rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--pf-border);
  color: var(--pf-text);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.pf-prose h3 {
  margin-top: 1.35rem;
  color: var(--pf-text);
  font-weight: 650;
}

.pf-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.915rem;
  margin: 1rem 0;
  border-radius: var(--pf-radius-sm);
  overflow: hidden;
}

.pf-prose th,
.pf-prose td {
  border: 1px solid var(--pf-border);
  padding: 0.55rem 0.7rem;
  text-align: left;
}

.pf-prose th {
  background: var(--pf-surface-2);
  color: var(--pf-text);
  font-weight: 600;
}

.pf-prose ul {
  color: var(--pf-muted);
}

.pf-prose a:focus-visible {
  outline: 2px solid var(--pf-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .pf-card:hover,
  .pf-apps-banner__card:hover,
  .pf-btn--primary:hover,
  .pf-btn--ghost:active {
    transform: none;
  }
}