/* ==========================================================================
   The Quiet Press — Portfolio Stylesheet
   Design Philosophy: Computational Editorial (Anthropic-inspired)
   Surfaces: Ivory Cream (#faf9f5) & Slate Ink (#141413)
   Signature Accent: Sky Blue (#0284c7 / #38bdf8)
   Typography: Newsreader (Serif) + Inter (Sans) + JetBrains Mono (Monospace)
   Mobile-Adaptive & Responsive: 320px — 1440px+
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Inter:ital,wght@0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500;600&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,500&display=swap');
@import url('tokens/variables.css');

/* ---------- Base & Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  background-color: var(--press-bg);
  color: var(--press-text-primary);
  font-family: var(--press-font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.25s ease, color 0.25s ease;
  overflow-x: hidden;
  width: 100%;
}

::selection {
  background-color: var(--press-primary-subtle);
  color: var(--press-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

/* Accessibility Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--press-primary);
  color: #ffffff;
  padding: 0.5rem 1rem;
  border-radius: var(--press-radius-md);
  font-family: var(--press-font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  z-index: 1000;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 1rem;
}

/* ---------- Typography Classes ---------- */
.font-serif { font-family: var(--press-font-serif); }
.font-sans { font-family: var(--press-font-sans); }
.font-mono { font-family: var(--press-font-mono); }

/* ---------- Main Layout Container ---------- */
.editorial-shell {
  width: 100%;
  max-width: 58rem; /* 928px */
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

@media (max-width: 480px) {
  .editorial-shell {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

main.portfolio-main {
  flex: 1;
  padding-top: clamp(2rem, 5vw, 3.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 5rem);
  display: flex;
  flex-direction: column;
  gap: clamp(2.75rem, 6vw, 4.5rem);
  width: 100%;
}

/* ---------- Header & Hero Section ---------- */
.hero-section {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 3vw, 1.5rem);
  padding-bottom: clamp(1.75rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--press-border);
}

.status-badge-container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  max-width: 100%;
}

.status-pill {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.4rem 0.85rem;
  background-color: var(--press-bg-subtle);
  border: 1px solid var(--press-border);
  border-radius: 9999px;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  font-weight: 500;
  max-width: 100%;
  line-height: 1.45;
  word-break: break-word;
}

@media (max-width: 480px) {
  .status-pill {
    border-radius: var(--press-radius-md);
    padding: 0.45rem 0.75rem;
    font-size: 0.7rem;
  }
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background-color: var(--press-sage);
  display: inline-block;
  box-shadow: 0 0 0 2px rgba(120, 140, 93, 0.25);
  animation: pulse-dot 2.5s infinite;
  margin-top: 0.25rem;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.hero-identity {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hero-name {
  font-family: var(--press-font-serif);
  font-size: clamp(2.25rem, 8vw, 3.75rem);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--press-text-primary);
  word-break: break-word;
}

.hero-title {
  font-family: var(--press-font-serif);
  font-style: italic;
  font-size: clamp(1.05rem, 4vw, 1.375rem);
  color: var(--press-text-secondary);
  line-height: 1.4;
}

.hero-lead {
  font-family: var(--press-font-serif);
  font-size: clamp(1rem, 3.5vw, 1.1875rem);
  line-height: 1.7;
  color: var(--press-text-primary);
  max-width: 48rem;
  margin-top: 0.25rem;
}

.hero-meta-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.85rem;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  padding-top: 0.25rem;
  line-height: 1.5;
}

.meta-dot {
  color: var(--press-text-muted);
}

@media (max-width: 480px) {
  .meta-dot {
    display: none;
  }
  .hero-meta-strip span {
    background-color: var(--press-bg-subtle);
    padding: 0.2rem 0.5rem;
    border-radius: var(--press-radius-sm);
    border: 1px solid var(--press-border-subtle);
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.5rem;
  width: 100%;
}

@media (max-width: 520px) {
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
}

/* ---------- Button Styles ---------- */
.press-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  border-radius: var(--press-radius-md);
  font-family: var(--press-font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
  min-height: 42px;
  touch-action: manipulation;
  text-align: center;
  white-space: nowrap;
}

@media (max-width: 520px) {
  .press-btn {
    width: 100%;
    padding: 0.55rem 0.75rem;
    font-size: 0.75rem;
    min-height: 44px;
  }
}

.press-btn-primary {
  background-color: var(--press-primary);
  color: #ffffff;
  box-shadow: var(--press-shadow-xs);
}
.press-btn-primary:hover {
  background-color: var(--press-primary-hover);
  color: #ffffff;
}

.press-btn-secondary {
  background-color: var(--press-bg-card);
  color: var(--press-text-primary);
  border-color: var(--press-border);
}
.press-btn-secondary:hover {
  background-color: var(--press-bg-subtle);
  border-color: var(--press-primary);
}

/* ---------- Section Architecture ---------- */
.editorial-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
  scroll-margin-top: 4.5rem;
}

.section-kicker {
  font-family: var(--press-font-mono);
  font-size: clamp(0.7rem, 2.5vw, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--press-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-kicker::after {
  content: "";
  height: 1px;
  flex: 1;
  background-color: var(--press-border);
  opacity: 0.6;
}

.section-header-block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.section-heading {
  font-family: var(--press-font-serif);
  font-size: clamp(1.4rem, 5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--press-text-primary);
  line-height: 1.25;
}

.section-subheading {
  font-family: var(--press-font-serif);
  font-style: italic;
  font-size: clamp(0.875rem, 3vw, 1rem);
  color: var(--press-text-secondary);
  line-height: 1.5;
}

/* ---------- Pull Quote & Abstract ---------- */
.editorial-abstract {
  border-left: 2px solid var(--press-primary);
  padding: 0.85rem 1.15rem;
  background-color: var(--press-bg-subtle);
  border-radius: 0 var(--press-radius-md) var(--press-radius-md) 0;
  font-family: var(--press-font-serif);
  font-size: clamp(0.95rem, 3.2vw, 1.125rem);
  line-height: 1.75;
  color: var(--press-text-primary);
}

/* ---------- Cards & Grids ---------- */
.press-card {
  background-color: var(--press-bg-card);
  border: 1px solid var(--press-border);
  border-radius: var(--press-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--press-shadow-xs);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
}

@media (max-width: 480px) {
  .press-card {
    padding: 1.125rem 1rem;
    border-radius: var(--press-radius-md);
  }
}

.press-card:hover {
  border-color: var(--press-primary);
  box-shadow: var(--press-shadow-sm);
}

/* Flagship Cards Stack */
.flagship-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
}

.flagship-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.flagship-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.flagship-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
}

@media (max-width: 520px) {
  .flagship-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}

.flagship-category {
  color: var(--press-primary);
  font-weight: 600;
}

.flagship-title {
  font-family: var(--press-font-serif);
  font-size: clamp(1.2rem, 4.5vw, 1.375rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--press-text-primary);
}

.flagship-org {
  font-family: var(--press-font-serif);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--press-text-secondary);
}

.flagship-summary {
  font-family: var(--press-font-serif);
  font-size: clamp(0.9375rem, 3vw, 1rem);
  line-height: 1.65;
  color: var(--press-text-primary);
}

.flagship-bullets {
  list-style: disc;
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-family: var(--press-font-serif);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--press-text-primary);
}

.flagship-bullets strong {
  font-weight: 600;
}

.metrics-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.5rem;
  padding-top: 0.25rem;
  width: 100%;
}

@media (max-width: 380px) {
  .metrics-strip {
    grid-template-columns: 1fr;
  }
}

.metric-box {
  background-color: var(--press-bg-subtle);
  border: 1px solid var(--press-border-subtle);
  border-radius: var(--press-radius-md);
  padding: 0.5rem 0.65rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.metric-label {
  font-family: var(--press-font-mono);
  font-size: 0.6875rem;
  color: var(--press-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.metric-value {
  font-family: var(--press-font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--press-text-primary);
  word-break: break-word;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  padding-top: 0.25rem;
}

.tech-tag {
  background-color: var(--press-bg-subtle);
  border: 1px solid var(--press-border);
  border-radius: var(--press-radius-sm);
  padding: 0.2rem 0.5rem;
  font-family: var(--press-font-mono);
  font-size: 0.6875rem;
  color: var(--press-text-secondary);
  line-height: 1.4;
}

/* Research Cards */
.research-stack {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
}

.research-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.research-title {
  font-family: var(--press-font-serif);
  font-size: clamp(1.15rem, 4vw, 1.25rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--press-text-primary);
}

.research-status {
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-primary);
  font-weight: 500;
  line-height: 1.45;
}

.research-abstract {
  font-family: var(--press-font-serif);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--press-text-primary);
}

.research-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

@media (max-width: 520px) {
  .research-footer {
    flex-direction: column;
    align-items: stretch;
  }
}

/* Open Source Grid */
.oss-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 640px) {
  .oss-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.oss-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  height: 100%;
}

.oss-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.oss-name {
  font-family: var(--press-font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--press-primary);
  word-break: break-all;
}

.oss-desc {
  font-family: var(--press-font-serif);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--press-text-primary);
}

.oss-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  padding-top: 0.35rem;
  border-top: 1px solid var(--press-border-subtle);
}

.lang-indicator {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.lang-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* Timeline Layout */
.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-left: 1.25rem;
  border-left: 2px solid var(--press-border);
  position: relative;
  margin-left: 0.5rem;
  width: calc(100% - 0.5rem);
}

@media (max-width: 480px) {
  .timeline-container {
    padding-left: 1rem;
    margin-left: 0.25rem;
    width: calc(100% - 0.25rem);
  }
}

.timeline-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.timeline-dot {
  position: absolute;
  left: calc(-1.25rem - 5px);
  top: 0.35rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--press-border);
  transition: background-color 0.2s ease;
}

@media (max-width: 480px) {
  .timeline-dot {
    left: calc(-1rem - 5px);
  }
}

.timeline-dot.current {
  background-color: var(--press-primary);
  box-shadow: 0 0 0 3px var(--press-primary-subtle);
}

.timeline-role {
  font-family: var(--press-font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--press-text-primary);
  line-height: 1.35;
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 0.5rem;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
}

@media (max-width: 480px) {
  .timeline-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}

.timeline-company {
  color: var(--press-primary);
  font-weight: 500;
}

.timeline-period {
  color: var(--press-text-secondary);
}

.timeline-desc {
  font-family: var(--press-font-serif);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--press-text-primary);
  padding-top: 0.15rem;
}

/* Competency Matrix Grid */
.matrix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 600px) {
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 840px) {
  .matrix-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.matrix-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.matrix-title {
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--press-primary);
}

.matrix-items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.matrix-pill {
  background-color: var(--press-bg-subtle);
  border: 1px solid var(--press-border-subtle);
  border-radius: var(--press-radius-sm);
  padding: 0.25rem 0.5rem;
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  line-height: 1.4;
}

/* Education Cards */
.education-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.education-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.edu-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

@media (min-width: 640px) {
  .edu-header {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
  }
}

.edu-degree {
  font-family: var(--press-font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--press-text-primary);
  line-height: 1.35;
}

.edu-period {
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
}

.edu-school {
  font-family: var(--press-font-serif);
  font-style: italic;
  font-size: 0.9375rem;
  color: var(--press-primary);
}

.edu-grade {
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  line-height: 1.4;
}

.edu-dissertation {
  font-family: var(--press-font-serif);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--press-text-primary);
  margin-top: 0.25rem;
}

/* Subdomain Ecosystem Directory */
.ecosystem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 540px) {
  .ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.ecosystem-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-decoration: none;
  min-height: 44px;
}

.ecosystem-card:hover .ecosystem-title {
  color: var(--press-primary);
}

.ecosystem-badge {
  font-family: var(--press-font-mono);
  font-size: 0.6875rem;
  color: var(--press-primary);
  text-transform: uppercase;
}

.ecosystem-title {
  font-family: var(--press-font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--press-text-primary);
  transition: color 0.15s ease;
}

.ecosystem-desc {
  font-family: var(--press-font-serif);
  font-size: 0.8125rem;
  color: var(--press-text-secondary);
  line-height: 1.5;
}

/* ---------- Colophon & Footer ---------- */
.editorial-footer {
  border-top: 1px solid var(--press-border);
  padding-top: clamp(2rem, 5vw, 3rem);
  padding-bottom: max(2.5rem, env(safe-area-inset-bottom, 2.5rem));
  background-color: var(--press-bg-subtle);
  margin-top: 3rem;
  width: 100%;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .footer-top {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--press-font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--press-text-primary);
}

.footer-tagline {
  font-family: var(--press-font-serif);
  font-style: italic;
  font-size: 0.875rem;
  color: var(--press-text-secondary);
  max-width: 24rem;
  line-height: 1.5;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem 1.25rem;
  font-family: var(--press-font-mono);
  font-size: 0.8125rem;
}

@media (min-width: 768px) {
  .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
  }
}

.footer-link {
  color: var(--press-text-secondary);
  transition: color 0.15s ease;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
}
.footer-link:hover {
  color: var(--press-primary);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--press-border);
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  color: var(--press-text-secondary);
  line-height: 1.5;
}

@media (min-width: 640px) {
  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.local-clock-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 24px;
}

.clock-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--press-primary);
  flex-shrink: 0;
}

/* Toast Notification */
.copy-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--press-text-primary);
  color: var(--press-bg);
  padding: 0.625rem 1.125rem;
  border-radius: var(--press-radius-md);
  font-family: var(--press-font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1000;
}

@media (max-width: 520px) {
  .copy-toast {
    left: 1rem;
    right: 1rem;
    bottom: 1.5rem;
    text-align: center;
    border-radius: var(--press-radius-md);
  }
}

.copy-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Print Optimization */
@media print {
  press-nav,
  .hero-actions,
  .copy-toast,
  .no-print {
    display: none !important;
  }
  body {
    background-color: #ffffff !important;
    color: #000000 !important;
  }
  .press-card {
    border-color: #cccccc !important;
    box-shadow: none !important;
  }
}