/* Twyla Nunes-Ueno — ePortfolio */
:root {
  --bg: #0f1419;
  --bg-elevated: #1a222d;
  --surface: #232f3e;
  --text: #e8ecf1;
  --text-muted: #9aa8b9;
  --accent: #c9a227;
  --accent-soft: rgba(201, 162, 39, 0.15);
  --accent-hover: #e0b82e;
  --border: rgba(232, 236, 241, 0.12);
  --font-sans: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --radius: 12px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --max: 72ch;
  --header-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(201, 162, 39, 0.12), transparent),
    linear-gradient(180deg, var(--bg) 0%, #0a0e12 100%);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--accent-hover);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem clamp(1rem, 4vw, 2rem);
  min-height: var(--header-h);
  background: rgba(15, 20, 25, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  align-items: center;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

main {
  padding: clamp(1.5rem, 4vw, 3rem);
  padding-bottom: 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

@media (min-width: 768px) {
  .hero {
    grid-template-columns: 1fr 280px;
  }
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
  max-width: var(--max);
}

.hero-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-card figcaption {
  padding: 0.65rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.quote-block {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: var(--max);
}

.quote-block blockquote {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  line-height: 1.5;
}

.quote-block cite {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-style: normal;
  color: var(--text-muted);
}

.roadmap {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

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

.roadmap a {
  display: block;
  padding: 1.25rem 1.35rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}

.roadmap a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.roadmap h2 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.35rem;
  color: var(--accent);
}

.roadmap p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin: 0 0 0.5rem;
}

.subtitle {
  color: var(--text-muted);
  margin: 0 0 2rem;
  max-width: 60ch;
}

.prose {
  max-width: var(--max);
}

#education-section {
  margin-bottom: 3rem;
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

.prose h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
  color: var(--accent);
}

.prose p {
  margin: 0 0 1rem;
}

.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.prose li {
  margin-bottom: 0.35rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.skill-category h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
  color: var(--accent);
}

.skill-category p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.timeline {
  position: relative;
  margin: 2rem 0;
  padding-left: 1.5rem;
  border-left: 2px solid var(--accent);
}

.timeline-item {
  margin-bottom: 1.75rem;
  padding-left: 0.5rem;
}

.timeline-item h3 {
  margin: 0 0 0.25rem;
  font-size: 1.05rem;
}

.timeline-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem;
}

.steps-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 1rem 0 2rem;
}

.steps-list li {
  counter-increment: step;
  position: relative;
  padding: 0.85rem 1rem 0.85rem 3rem;
  margin-bottom: 0.75rem;
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.75rem;
  height: 1.75rem;
  line-height: 1.75rem;
  text-align: center;
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--accent);
  color: var(--bg);
  border-radius: 50%;
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.project-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.project-card.featured {
  border-color: rgba(201, 162, 39, 0.35);
}

.project-card-header {
  padding: 1.25rem 1.5rem 0;
}

.project-card-header h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  margin: 0 0 0.35rem;
}

.project-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  background: var(--surface);
  border-radius: 6px;
  color: var(--text-muted);
}

.tag.highlight {
  background: var(--accent-soft);
  color: var(--accent);
}

.project-body {
  padding: 0 1.5rem 1.5rem;
}

.project-body .prose {
  max-width: none;
}

.project-media {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
}

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

.media-caption {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.experience-grid,
.contact-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.education-grid {
  display: grid;
  gap: 1.5rem;
  width: 100%;
  max-width: 100%;
}

@media (min-width: 640px) {
  .education-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
  }
}

@media (min-width: 960px) {
  .education-grid {
    grid-template-columns: repeat(2, minmax(360px, 1fr));
  }
}

.exp-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
}

.exp-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.exp-card .org {
  color: var(--accent);
  font-weight: 600;
  margin: 0;
}

.exp-card .when {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0.25rem 0 0.75rem;
}

.resume-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--bg);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.resume-sheet {
  background: #fff;
  color: #1a1a1a;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius);
  max-width: 8.5in;
  margin: 0 auto;
  box-shadow: var(--shadow);
  font-size: 0.95rem;
  line-height: 1.5;
}

.resume-sheet h1 {
  font-size: 1.5rem;
  margin: 0 0 0.25rem;
  color: #111;
}

.resume-sheet .contact-line {
  font-size: 0.9rem;
  color: #444;
  margin: 0 0 1.25rem;
  border-bottom: 2px solid #c9a227;
  padding-bottom: 0.75rem;
}

.resume-sheet h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #333;
  margin: 1.25rem 0 0.5rem;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.25rem;
}

.resume-sheet h3 {
  font-size: 1rem;
  margin: 0.75rem 0 0.15rem;
  color: #111;
}

.resume-sheet .resume-meta {
  font-size: 0.85rem;
  color: #555;
  margin: 0 0 0.35rem;
}

.resume-sheet ul {
  margin: 0 0 0.5rem;
  padding-left: 1.2rem;
}

.resume-sheet li {
  margin-bottom: 0.25rem;
}

.resume-sheet .skills-block {
  columns: 2;
  gap: 1.5rem;
}

@media (max-width: 500px) {
  .resume-sheet .skills-block {
    columns: 1;
  }
}

.site-footer {
  margin-top: auto;
  padding: 2rem clamp(1rem, 4vw, 2rem);
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.site-footer h2 {
  font-size: 0.9rem;
  margin: 0 0 0.5rem;
  color: var(--text);
}

.credits-list {
  margin: 0;
  padding-left: 1.2rem;
}

.credits-list li {
  margin-bottom: 0.35rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Decorative SVG on welcome */
.hero-graphic {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  opacity: 0.9;
}

@media (max-width: 767px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
  }

  .site-header {
    flex-wrap: wrap;
  }

  .site-nav a[aria-current="page"] {
    border-bottom-color: transparent;
    color: var(--accent);
  }
}

body.nav-open {
  overflow: hidden;
}