/* =========================================================
   James Kane — Electrical Engineer Portfolio
   Global Stylesheet
   ========================================================= */

/* ---- Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ---- Tokens ---- */
:root {
  --color-bg: #F4F4F4;
  --color-primary: #2E2E2E;
  --color-secondary: #FFFFFF;
  --color-accent: #4A90E2;
  --color-accent-dim: rgba(74, 144, 226, 0.35);
  --color-hairline: rgba(46, 46, 46, 0.12);

  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, monospace;

  --radius-img: 10px;
  --side-margin: 30px;
  --max-width: 1200px;
}

/* ---- Reset ---- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0 0 0.5em 0;
  letter-spacing: -0.01em;
}
p { margin: 0 0 1em 0; }

.page-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-margin);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  background: var(--color-secondary);
  border-bottom: 1px solid var(--color-hairline);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px var(--side-margin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--color-primary);
  white-space: nowrap;
}
.brand .brand-sub {
  font-weight: 400;
  color: var(--color-primary);
  opacity: 0.75;
}
.nav {
  display: flex;
  gap: 8px;
}
.nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.nav a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.nav a.active {
  color: var(--color-secondary);
  background: var(--color-primary);
}
.nav a.active:hover {
  color: var(--color-secondary);
  border-color: var(--color-primary);
}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--color-primary);
  color: var(--color-secondary);
  margin-top: 80px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px var(--side-margin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-left h2 {
  color: var(--color-secondary);
  font-size: 1.3rem;
  margin-bottom: 0.2em;
}
.footer-left h4 {
  color: var(--color-secondary);
  opacity: 0.7;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.9rem;
  margin: 0;
  letter-spacing: 0.02em;
}
.footer-right {
  display: flex;
  gap: 12px;
}
.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-secondary);
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.social-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.social-btn svg { width: 20px; height: 20px; fill: currentColor; }

/* =========================================================
   HOME PAGE
   ========================================================= */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 72px 0 96px 0;
  min-height: calc(100vh - 250px);
}
.hero-text { max-width: 520px; }
.headline-wrap {
  display: inline-block;
  margin-bottom: 24px;
}
.headline-wrap h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.25;
}
.headline-underline {
  height: 3px;
  width: 100%;
  background: var(--color-accent);
  margin-top: 14px;
  position: relative;
}
.headline-underline::after {
  content: '';
  position: absolute;
  right: -3px;
  top: -2.5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}
.hero-text p {
  font-size: 1.05rem;
  color: var(--color-primary);
  opacity: 0.85;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 14px 28px;
  background: var(--color-primary);
  color: var(--color-secondary);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid var(--color-primary);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn-primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.btn-primary .arrow { transition: transform 0.2s ease; }
.btn-primary:hover .arrow { transform: translateX(3px); }

.hero-image-wrap {
  position: relative;
  padding: 14px;
}
.hero-image-wrap::before,
.hero-image-wrap::after {
  content: '';
  position: absolute;
  width: 26px;
  height: 26px;
  border: 2px solid var(--color-accent);
  opacity: 0.9;
}
.hero-image-wrap::before {
  top: 0; left: 0;
  border-right: none;
  border-bottom: none;
}
.hero-image-wrap::after {
  bottom: 0; right: 0;
  border-left: none;
  border-top: none;
}
.hero-image-wrap img {
  border-radius: var(--radius-img);
  width: 100%;
  box-shadow: 0 20px 45px rgba(46, 46, 46, 0.18);
}

/* =========================================================
   PORTFOLIO PAGE
   ========================================================= */
.portfolio-header {
  padding: 72px 0 48px 0;
}
.portfolio-kicker {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}
.portfolio-header h3 {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  font-weight: 500;
  line-height: 1.5;
  max-width: 62%;
  color: var(--color-primary);
  opacity: 0.9;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding-bottom: 96px;
}
.project-tile {
  display: block;
}
.project-tile .tile-title {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 12px;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.project-tile .tile-title::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.tile-image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius-img);
  background: var(--color-secondary);
  box-shadow: 0 8px 24px rgba(46, 46, 46, 0.1);
}
.tile-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-img);
  transition: transform 0.35s ease;
}
.tile-image-wrap::before,
.tile-image-wrap::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-secondary);
  opacity: 0;
  transition: opacity 0.25s ease;
  z-index: 2;
}
.tile-image-wrap::before {
  top: 8px; left: 8px;
  border-right: none;
  border-bottom: none;
}
.tile-image-wrap::after {
  bottom: 8px; right: 8px;
  border-left: none;
  border-top: none;
}
.project-tile:hover .tile-image-wrap img { transform: scale(1.05); }
.project-tile:hover .tile-image-wrap::before,
.project-tile:hover .tile-image-wrap::after { opacity: 0.85; }

/* =========================================================
   PROJECT DETAIL PAGES
   ========================================================= */
.project-detail-main {
  padding: 72px 0 96px 0;
}

/* --- Text / image split --- */
.project-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: start;
}

.project-text .project-title {
  font-size: 1.6rem;
  margin-bottom: 22px;
}
.project-description {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--color-primary);
  opacity: 0.85;
}
.project-description p {
  margin-bottom: 1.1em;
}
.project-description p:last-child { margin-bottom: 0; }

/* --- Image collage stage ---
   The stage is a fixed-ratio box, so the total "image space" is identical
   on every project page no matter how many photos it holds. Images are
   positioned as percentages of that box and cropped (never stretched) to
   fill their slot, so proportions are always preserved. */
.image-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
}
.stage-img {
  position: absolute;
  border-radius: var(--radius-img);
  object-fit: cover;
  border: 4px solid var(--color-secondary);
  box-shadow: 0 15px 35px rgba(46, 46, 46, 0.18);
  background: var(--color-secondary);
}

/* 1 image: fills the stage */
.image-stage[data-count="1"] .stage-img {
  inset: 0;
  width: 100%;
  height: 100%;
}

/* 2 images: diagonal overlap, upper-left + lower-right */
.image-stage[data-count="2"] .stage-img:nth-of-type(1) {
  top: 0; left: 0;
  width: 58%; height: 58%;
  z-index: 1;
}
.image-stage[data-count="2"] .stage-img:nth-of-type(2) {
  bottom: 0; right: 0;
  width: 58%; height: 58%;
  z-index: 2;
}

/* 3 images: large top-left, small top-right, large bottom-right */
.image-stage[data-count="3"] .stage-img:nth-of-type(1) {
  top: 0; left: 0;
  width: 58%; height: 58%;
  z-index: 1;
}
.image-stage[data-count="3"] .stage-img:nth-of-type(2) {
  top: 0; right: 0;
  width: 44%; height: 44%;
  z-index: 2;
}
.image-stage[data-count="3"] .stage-img:nth-of-type(3) {
  bottom: 0; right: 0;
  width: 58%; height: 58%;
  z-index: 3;
}

/* 4 images: 2x2 grid with a slight overlap in the middle */
.image-stage[data-count="4"] .stage-img {
  width: 55%;
  height: 55%;
}
.image-stage[data-count="4"] .stage-img:nth-of-type(1) { top: 0; left: 0; z-index: 1; }
.image-stage[data-count="4"] .stage-img:nth-of-type(2) { top: 0; right: 0; z-index: 2; }
.image-stage[data-count="4"] .stage-img:nth-of-type(3) { bottom: 0; left: 0; z-index: 3; }
.image-stage[data-count="4"] .stage-img:nth-of-type(4) { bottom: 0; right: 0; z-index: 4; }

/* --- Video embed (only present on pages with an associated video) --- */
.project-video {
  margin-top: 60px;
}
.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-img);
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(46, 46, 46, 0.18);
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Bottom nav: back to portfolio / random project --- */
.project-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid var(--color-hairline);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 6px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-secondary);
  transform: translateY(-2px);
}

.random-project-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px;
  padding-right: 20px;
  border-radius: 8px;
  border: 1px solid var(--color-hairline);
  background: var(--color-secondary);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.random-project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(46, 46, 46, 0.1);
}
.random-project-card img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}
.random-project-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.random-project-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.random-project-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
}
.random-arrow {
  margin-left: 6px;
  color: var(--color-accent);
  transition: transform 0.2s ease;
}
.random-project-card:hover .random-arrow { transform: translateX(3px); }

/* =========================================================
   RESUME PAGE
   ========================================================= */
.resume-main {
  padding: 72px 0 96px 0;
}
.resume-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--color-hairline);
}
.resume-heading h3 {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
}
.resume-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-primary);
  opacity: 0.75;
}
.resume-contact a:hover { color: var(--color-accent); opacity: 1; }
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--color-accent);
  color: var(--color-secondary);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
  white-space: nowrap;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn-download svg { width: 16px; height: 16px; fill: currentColor; }
.btn-download:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.resume-section {
  margin-bottom: 44px;
}
.resume-section:last-child { margin-bottom: 0; }
.resume-section-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.resume-section-title::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.resume-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 20px;
  margin-bottom: 26px;
}
.resume-entry:last-child { margin-bottom: 0; }
.resume-entry-org {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-primary);
}
.resume-entry-location {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  opacity: 0.6;
  text-align: right;
  white-space: nowrap;
}
.resume-entry-role {
  font-style: italic;
  font-size: 0.92rem;
  color: var(--color-primary);
  opacity: 0.85;
}
.resume-entry-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-primary);
  opacity: 0.6;
  text-align: right;
  white-space: nowrap;
}
.resume-entry-bullets {
  grid-column: 1 / -1;
  margin: 10px 0 0 0;
  padding-left: 1.2em;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--color-primary);
  opacity: 0.85;
}
.resume-entry-bullets li { margin-bottom: 6px; }
.resume-entry-bullets li:last-child { margin-bottom: 0; }

.resume-skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.resume-skill-row {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--color-primary);
  opacity: 0.85;
}
.resume-skill-row strong {
  font-family: var(--font-display);
  font-weight: 600;
  opacity: 1;
  display: block;
  margin-bottom: 4px;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 48px 0 64px 0;
  }
  .hero-image-wrap { order: -1; }
  .hero-text { max-width: 100%; }
  .portfolio-header h3 { max-width: 100%; }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .project-layout { grid-template-columns: 1fr; gap: 36px; }
  .image-stage { max-width: 480px; }
}

@media (max-width: 600px) {
  .header-inner { padding: 16px var(--side-margin); }
  .nav a { padding: 8px 12px; font-size: 0.75rem; }
  .brand { font-size: 1rem; }
  .project-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .project-nav { flex-direction: column; align-items: stretch; }
  .btn-secondary { justify-content: center; }
  .random-project-card { padding-right: 10px; }
  .resume-header { flex-direction: column; }
  .btn-download { width: 100%; justify-content: center; }
  .resume-entry { grid-template-columns: 1fr; }
  .resume-entry-location,
  .resume-entry-date { text-align: left; }
  .resume-skills-grid { grid-template-columns: 1fr; }
}