/* ─────────────────────────────────────────────────────────────────────────────
   PMG Robotics — stylesheet
   Dark slate theme with green accent (matching logo)
───────────────────────────────────────────────────────────────────────────── */

/* ── Variables ── */
:root {
  --bg:           #0f172a;
  --surface:      #1e293b;
  --card:         #1e293b;
  --card-hover:   #263348;
  --border:       #334155;
  --text:         #f1f5f9;
  --text-muted:   #94a3b8;
  --text-dim:     #475569;
  --accent:       #22c55e;
  --accent-dim:   rgba(34, 197, 94, 0.08);
  --accent-hover: #4ade80;
  --radius:       12px;
  --nav-h:        64px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Layout ── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navbar ── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 200;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 46px; width: auto; max-width: 180px; object-fit: contain; }

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}
.nav-links a {
  padding: 6px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.25s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #0f172a;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn-ghost {
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* ── Section header ── */
.section-header { margin-bottom: 48px; }
.section-header h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.5px;
}
.section-sub {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 16px;
}

/* ─────────────────────────────────────────────
   HERO
───────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 68% 40%, rgba(34,197,94,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 80px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}
.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
}
.hero-desc {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* PCB-grid decorative visual */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.pcb-grid {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  border-radius: 20px;
  border: 1px solid var(--border);
  background-image:
    linear-gradient(rgba(34,197,94,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,197,94,0.07) 1px, transparent 1px);
  background-size: 36px 36px;
  position: relative;
  overflow: hidden;
}
.pcb-grid::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(34,197,94,0.1) 0%, transparent 68%);
}
/* Decorative dots at grid intersections */
.pcb-grid::before {
  content: '';
  position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(34,197,94,0.25) 1px, transparent 1px);
  background-size: 36px 36px;
  background-position: -1px -1px;
}

/* ─────────────────────────────────────────────
   HERO SLIDESHOW
───────────────────────────────────────────── */
.hero-slideshow {
  width: 100%;
  max-width: 460px;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  background: var(--surface);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
}
.slideshow-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: none;      /* invisible slides can't be clicked */
}
.slideshow-slide.active {
  opacity: 1;
  pointer-events: auto;      /* only the visible slide is clickable */
}
.slideshow-slide:hover .slideshow-arrow { opacity: 1; transform: translateX(4px); }

.slideshow-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
}
.slideshow-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 48px 16px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,0.72));
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 8px;
}
.slideshow-caption-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.slideshow-client {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--accent);
}
.slideshow-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}
.slideshow-arrow {
  font-size: 18px;
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  flex-shrink: 0;
  margin-left: auto;
}
.slideshow-dots {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: flex;
  gap: 6px;
}
.slideshow-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  cursor: pointer;
  border: none;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}
.slideshow-dot.active {
  background: var(--accent);
  transform: scale(1.2);
}
.slideshow-dot:hover { background: rgba(255,255,255,0.6); }

/* ─────────────────────────────────────────────
   SERVICES
───────────────────────────────────────────── */
.services {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  padding: 28px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}
.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.service-icon {
  width: 40px; height: 40px;
  margin-bottom: 16px;
  color: var(--accent);
}
.service-icon svg { width: 40px; height: 40px; }
.service-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ─────────────────────────────────────────────
   PROJECTS
───────────────────────────────────────────── */
.projects-section {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}
.projects-scroll-wrapper {
  position: relative;
}
.projects-scroll-wrapper::before,
.projects-scroll-wrapper::after {
  content: '';
  position: absolute;
  top: 0; bottom: 20px;
  width: 48px;
  pointer-events: none;
  z-index: 1;
}
.projects-scroll-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--bg), transparent);
}
.projects-scroll-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--bg), transparent);
}
.projects-scroll {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 8px 24px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  -webkit-overflow-scrolling: touch;
}
.projects-scroll::-webkit-scrollbar { height: 4px; }
.projects-scroll::-webkit-scrollbar-track { background: transparent; }
.projects-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.project-card {
  flex: 0 0 300px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  scroll-snap-align: start;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.project-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
.project-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.project-thumb {
  height: 175px;
  background: var(--surface);
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.thumb-placeholder-letter {
  font-size: 52px;
  font-weight: 700;
  color: var(--border);
  user-select: none;
}
.project-card-body { padding: 20px; }
.project-client {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.project-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 8px;
}
.project-summary {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(34, 197, 94, 0.18);
}

/* ─────────────────────────────────────────────
   PARTNERS
───────────────────────────────────────────── */
.partners-section {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}
.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 160px;
  min-height: 80px;
  transition: border-color 0.2s, transform 0.2s;
}
.partner-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.partner-logo {
  height: 38px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  /* Make logos white so they're readable on dark background */
  filter: brightness(0) invert(1);
  opacity: 0.55;
  transition: opacity 0.25s;
}
.partner-card:hover .partner-logo {
  opacity: 1;
}
.partner-name-text {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s;
}
.partner-card:hover .partner-name-text { color: var(--text); }

/* ─────────────────────────────────────────────
   TEAM
───────────────────────────────────────────── */
.team-section {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.team-member { text-align: center; }
.member-photo {
  position: relative;
  width: 110px; height: 110px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  background: var(--surface);
  border: 2px solid var(--border);
}
.member-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
}
.member-photo-link {
  display: block;
  width: 100%; height: 100%;
}
.member-photo-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 102, 194, 0.88);
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s;
}
.member-photo:hover .member-photo-overlay { opacity: 1; }
.photo-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 700;
  color: var(--text-dim);
}
.member-info h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.member-role {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.member-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}
.member-link {
  font-size: 12px;
  color: var(--accent);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}
.member-link:hover { color: var(--accent-hover); }

/* ─────────────────────────────────────────────
   CONTACT / FOOTER
───────────────────────────────────────────── */
.contact-section {
  padding: 80px 0 40px;
  border-top: 1px solid var(--border);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 56px;
}
.contact-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.footer-logo { margin-bottom: 4px; height: 52px; width: auto; max-width: 220px; object-fit: contain; }
.contact-tagline {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 340px;
}
.contact-location {
  font-size: 13px;
  color: var(--text-dim);
}
.contact-right h3 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}
.contact-right > p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 15px;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  color: var(--text-dim);
  font-size: 13px;
}
.contact-email-link {
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
  margin-top: 4px;
}
.contact-email-link:hover { text-decoration: underline; }
.form-success {
  display: none;
  background: rgba(34,197,94,0.1);
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  padding: 16px 18px;
  font-size: 15px;
  line-height: 1.5;
  margin-bottom: 4px;
}
.form-error-global {
  color: #ef4444;
  font-size: 13px;
  min-height: 18px;
  margin: 0 0 4px;
}
.contact-form { display: flex; flex-direction: column; gap: 12px; width: 100%; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
  box-sizing: border-box;
}
.form-input:focus { border-color: var(--accent); }
.form-input::placeholder { color: var(--text-dim); }
.form-textarea { resize: vertical; min-height: 110px; }

/* ─────────────────────────────────────────────
   PROJECT DETAIL PAGE
───────────────────────────────────────────── */
.project-detail {
  padding-top: calc(var(--nav-h) + 56px);
  padding-bottom: 96px;
  min-height: 100vh;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 48px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }
.project-detail-header { margin-bottom: 40px; }
.project-client-tag {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.project-detail-title {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 18px;
  line-height: 1.15;
}

/* Gallery */
.project-gallery {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-auto-rows: minmax(200px, auto);
  gap: 12px;
  margin-bottom: 48px;
}
.project-gallery.gallery-single {
  grid-template-columns: 1fr;
}
.gallery-item {
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}
.gallery-item-main {
  grid-row: span 2;
}
.project-gallery.gallery-single .gallery-item-main {
  grid-row: span 1;
  max-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  cursor: zoom-in;
  transition: transform 0.3s;
  display: block;
}
.gallery-item img:hover { transform: scale(1.02); }

/* Description */
.project-detail-body { max-width: 720px; }
.project-description p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 18px;
}

/* ─────────────────────────────────────────────
   LIGHTBOX
───────────────────────────────────────────── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  object-fit: contain;
  border-radius: 8px;
}

/* ─────────────────────────────────────────────
   LOADING
───────────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.loading-spinner {
  width: 28px; height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────────────────────────────────────────
   RESPONSIVE — tablet (≤1024px)
───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid     { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .hero .container { gap: 40px; }
}

/* ─────────────────────────────────────────────
   RESPONSIVE — mobile (≤768px)
───────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Nav */
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    gap: 4px;
    z-index: 199;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 16px; font-size: 16px; }

  /* Hero */
  .hero .container {
    grid-template-columns: 1fr;
    gap: 0;
    padding-top: 48px;
    padding-bottom: 48px;
  }
  .hero-visual { display: none; }
  .hero-title { letter-spacing: -0.5px; }
  .hero-desc { font-size: 16px; }

  /* Services */
  .services-grid { grid-template-columns: 1fr; gap: 16px; }

  /* Projects */
  .project-card { flex: 0 0 264px; }

  /* Team */
  .team-grid { grid-template-columns: repeat(2, 1fr); }

  /* Contact */
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }

  /* Project detail */
  .project-gallery { grid-template-columns: 1fr; }
  .gallery-item-main { grid-row: span 1; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { justify-content: center; }
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .member-photo { width: 88px; height: 88px; }
}