/* Robotics portfolio — light, sleek, red accents */

:root {
  --bg: #f0f0f0;
  --bg-subtle: #e4e4e4;
  --bg-elevated: #ffffff;
  --text: #141414;
  --text-muted: #454545;
  --text-body: #2e2e2e;
  --accent: #c41230;
  --accent-hover: #a30f28;
  --accent-soft: rgba(196, 18, 48, 0.1);
  --border: rgba(0, 0, 0, 0.12);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.07), 0 12px 32px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.1), 0 16px 40px rgba(0, 0, 0, 0.1);
  --radius: 10px;
  --font-sans: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max-width: 1220px;
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-links a.nav-contact {
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.32rem 0.7rem;
  color: var(--accent);
  background: var(--accent-soft);
  transition:
    color 0.15s ease,
    background 0.15s ease,
    border-color 0.15s ease;
}

.nav-links a.nav-contact:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Layout */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 3.5rem;
  overflow-x: clip;
}

.section {
  padding: 4rem 0;
  scroll-margin-top: var(--header-h);
}

.section-header {
  margin-bottom: 2.5rem;
  max-width: 40rem;
}

.section-header h2,
.about h2,
.experience h2,
.contact h2 {
  font-size: clamp(1.65rem, 3.5vw, 2rem);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  font-weight: 700;
  color: var(--text);
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
}

.section-header p {
  color: var(--text-body);
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.65;
}

/* Hero — full viewport width; text aligns with main content below */
.hero {
  position: relative;
  width: 100%;
  min-height: clamp(30rem, 54vh, 38rem);
  padding: 5.5rem 0 3.5rem;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  box-sizing: border-box;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-text-panel {
  display: inline-block;
  max-width: 100%;
  padding: 0.75rem 1.15rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 3px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(6px);
}

.hero-text-panel .eyebrow {
  margin-bottom: 0.45rem;
}

.hero-text-panel h1 {
  margin-bottom: 0.5rem;
}

.hero-text-panel .hero-lead {
  margin-bottom: 0.85rem;
  line-height: 1.55;
}

.hero-text-panel .hero-actions {
  gap: 0.5rem;
}

.hero-marquee {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-marquee-track {
  display: flex;
  width: max-content;
  height: 100%;
  animation: hero-marquee 34s linear infinite;
  will-change: transform;
}

.hero-marquee-group {
  display: flex;
  flex-shrink: 0;
  height: 100%;
  font-size: 0;
  line-height: 0;
}

.hero-marquee img {
  height: 100%;
  width: auto;
  max-width: none;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: var(--bg-subtle);
  vertical-align: top;
}

@keyframes hero-marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-marquee-track {
    animation: none;
  }
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin: 0 0 1.25rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5.5vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  margin: 0 0 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text);
  max-width: 34rem;
  margin: 0 0 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.92rem;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease,
    padding 0.25s ease;
}

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

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

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-elevated);
}

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

/* Projects */
.projects {
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.project-grid {
  display: grid;
  gap: 2rem;
}

.project-card {
  display: grid;
  gap: 0;
  align-items: stretch;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  border-color: rgba(196, 18, 48, 0.25);
  box-shadow: var(--shadow-hover);
}

@media (min-width: 768px) {
  .project-card {
    grid-template-columns: 1.15fr 1fr;
  }
}

.media-wrap {
  background: var(--bg-subtle);
  width: 100%;
  line-height: 0;
}

/* Single project videos — same idea as carousel viewport: frame fits the video */
.project-video-frame {
  position: relative;
  background: #1a1a1a;
  line-height: 0;
}

.project-video-frame video.project-media {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: top;
  object-fit: contain;
  background: #1a1a1a;
}

.project-media {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--bg-subtle);
  display: block;
}

img.project-media {
  object-fit: cover;
}

/* Project video carousel */
.project-carousel {
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-carousel-viewport {
  position: relative;
  background: #1a1a1a;
}

.project-carousel-slide {
  display: none;
  pointer-events: none;
}

.project-carousel-slide.is-active {
  display: block;
  pointer-events: auto;
}

.project-carousel-figure {
  position: relative;
  margin: 0;
}

.project-carousel .project-media {
  position: relative;
  z-index: 0;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #1a1a1a;
  display: block;
  vertical-align: top;
}

.project-carousel-caption {
  position: absolute;
  top: 1.5rem;
  left: 0;
  z-index: 1;
  margin: 0;
  padding: 0.4rem 0.8rem 0.4rem 0.6rem;
  max-width: min(88%, 24rem);
  font-size: 0.9rem;
  line-height: 1.35;
  font-weight: 500;
  color: #fff;
  text-align: left;
  background: rgba(20, 20, 20, 0.78);
  border-left: 3px solid var(--accent);
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.project-carousel-btn {
  position: absolute;
  top: 50%;
  z-index: 3;
  transform: translateY(-50%);
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.project-carousel-btn:hover {
  background: #fff;
  color: var(--accent);
  transform: translateY(-50%) scale(1.05);
}

.project-carousel-btn--prev {
  left: 0.65rem;
}

.project-carousel-btn--next {
  right: 0.65rem;
}

.project-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem;
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
}

.project-carousel-dot {
  width: 0.55rem;
  height: 0.55rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

.project-carousel-dot:hover {
  background: rgba(196, 18, 48, 0.45);
}

.project-carousel-dot.is-active {
  background: var(--accent);
  transform: scale(1.2);
}

.project-body {
  padding: 1.75rem 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  border-left: 3px solid var(--accent);
  min-height: 100%;
}

@media (max-width: 767px) {
  .project-body {
    border-left: none;
    border-top: 3px solid var(--accent);
  }
}

.project-tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

.project-body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
}

.project-body > p {
  color: var(--text-body);
  margin: 0 0 1rem;
  flex: 1;
  font-size: 1rem;
  line-height: 1.65;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}

.project-link {
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
}

.project-link:hover {
  text-decoration: underline;
}

/* Experience */
.experience-grid {
  display: grid;
  gap: 1.25rem;
}

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

.experience-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem 1.65rem;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--accent);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.experience-card:hover {
  border-color: rgba(196, 18, 48, 0.25);
  border-top-color: var(--accent);
  box-shadow: var(--shadow-hover);
}

.experience-tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 0.45rem;
  letter-spacing: 0.02em;
}

.experience-card h3 {
  margin: 0 0 0.25rem;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--text);
}

.experience-role {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.experience-card > p:last-child {
  margin: 0;
  color: var(--text-body);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* About */
.about {
  background: var(--bg-subtle);
  margin-left: -1.5rem;
  margin-right: -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

.about-grid > div > p {
  color: var(--text-body);
  line-height: 1.7;
}

.about p strong {
  color: var(--text);
  font-weight: 700;
}

.about-facts {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.about-facts:hover {
  border-color: rgba(196, 18, 48, 0.25);
  box-shadow: var(--shadow-hover);
}

.about-facts h3 {
  margin: 0 0 1.25rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent);
}

.about-facts dl {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.about-facts dt {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about-facts dd {
  margin: 0.2rem 0 0;
  font-weight: 500;
  color: var(--text);
}

.skills {
  margin-top: 2.5rem;
}

.skills h3 {
  margin: 0 0 1.15rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent);
}

.skill-groups {
  display: grid;
  gap: 1.35rem;
}

@media (min-width: 768px) {
  .skill-groups {
    grid-template-columns: 1.3fr 1.4fr 1fr;
    gap: 1.75rem;
  }
}

.skill-groups h4 {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-list li {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.skill-list li:hover {
  border-color: rgba(196, 18, 48, 0.25);
  box-shadow: var(--shadow-hover);
}

/* Contact */
.contact {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 4rem;
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.contact:hover {
  border-color: rgba(196, 18, 48, 0.25);
  box-shadow: var(--shadow-hover);
}

.contact > p {
  color: var(--text-body);
  max-width: 32rem;
  margin: 0;
  line-height: 1.65;
}

.contact-links {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2rem;
}

.contact-links a {
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  position: relative;
}

.contact-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.contact-links a:hover::after {
  width: 100%;
}

.contact-links a:hover {
  text-decoration: none;
}

/* Footer */
.site-footer {
  width: 100%;
  border-top: 1px solid var(--border);
  padding: 1.15rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  background: #e6e6e6;
}

.site-footer p {
  margin: 0;
}

/* Mobile */
@media (max-width: 600px) {
  .nav-links {
    gap: 0.7rem;
  }

  .nav-links a {
    font-size: 0.85rem;
  }

  .hero {
    padding-top: 3.5rem;
  }
}