/* =========================================
   HERMETIC LABS — Design System
   ========================================= */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,600;0,700;1,400&family=Libre+Baskerville:ital,wght@0,400;0,700;1,400&display=swap');

/* ---------- Custom Properties ---------- */
:root {
  --bg:           #000000;
  --bg-section:   #050505;
  --bg-card:      #0d0d0d;
  --bg-card-hover:#141414;

  --green-dark:   #065320;
  --teal:         #2fb4a5;
  --amber:        #f8ad00;
  --red:          #e13333;
  --blue:         #3992ff;

  --text-primary: #ffffff;
  --text-sub:     #e8e8e8;
  --text-muted:   #bbb7b4;
  --text-dim:     #888888;

  --grad-brand:   linear-gradient(135deg, var(--green-dark), var(--teal));
  --grad-accent:  linear-gradient(45deg, var(--amber) 15%, var(--red) 50%, var(--blue) 85%);
  --grad-subtle:  linear-gradient(180deg, rgba(6,83,32,0.15) 0%, transparent 100%);

  --font-body:    'Montserrat', sans-serif;
  --font-accent:  'Libre Baskerville', serif;

  --nav-height:   72px;
  --section-pad:  100px 5%;
  --max-width:    1200px;
  --radius:       12px;
  --radius-sm:    8px;

  --transition:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }

/* ---------- Utility ---------- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.text-gradient {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-accent {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-body);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}
.section-desc {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto 48px;
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(47,180,165,0.1);
  z-index: 1000;
  transition: background var(--transition);
}
.nav.scrolled {
  background: rgba(0,0,0,0.95);
  border-bottom-color: rgba(47,180,165,0.25);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}
.nav-brand span {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-brand);
  transition: width var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--section-pad);
  padding-top: calc(var(--nav-height) + 60px);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 40%, rgba(6,83,32,0.2) 0%, transparent 60%),
              radial-gradient(ellipse at 30% 80%, rgba(47,180,165,0.08) 0%, transparent 50%);
  pointer-events: none;
}
.hero-logo {
  width: 270px;
  height: 270px;
  margin: 0 auto 32px;
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-tagline {
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  color: var(--text-sub);
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  font-weight: 300;
}
.hero-subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.25rem);
  font-weight: 600;
  line-height: 1.5;
  max-width: 680px;
  margin-bottom: 40px;
}
.hero-wordmark {
  width: clamp(200px, 30vw, 380px);
  opacity: 0.9;
  margin-top: 24px;
}
.hero-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

/* ---------- Section Shared ---------- */
section {
  padding: var(--section-pad);
  position: relative;
}
section:nth-child(even) {
  background: var(--bg-section);
}
.section-divider {
  width: 60px;
  height: 3px;
  background: var(--grad-brand);
  border-radius: 2px;
  margin: 0 auto 40px;
}

/* ---------- About Section ---------- */
.about-header {
  text-align: center;
  margin-bottom: 64px;
}
.about-lead {
  font-family: var(--font-accent);
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.about-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto 24px;
  line-height: 1.7;
}
.about-quote {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 800px;
  margin: 0 auto;
}
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 48px;
}
.pillar {
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.1);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.pillar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-brand);
  opacity: 0;
  transition: opacity var(--transition);
}
.pillar:hover {
  border-color: rgba(47,180,165,0.3);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.pillar:hover::before { opacity: 1; }
.pillar h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.pillar ul {
  list-style: disc;
  padding-left: 20px;
}
.pillar li {
  color: var(--text-muted);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

/* ---------- How It Works ---------- */
.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-bottom: 48px;
}
.how-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.08);
  transition: var(--transition);
}
.how-card:hover {
  border-color: rgba(47,180,165,0.25);
  transform: translateY(-4px);
}
.how-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  display: block;
}
.how-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.how-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.how-tagline {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 16px;
}
.how-quote {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 700px;
  margin: 0 auto;
  font-style: italic;
}

/* ---------- Exchange ---------- */
.exchange-content {
  display: flex;
  align-items: center;
  gap: 48px;
}
.exchange-text { flex: 1; }
.exchange-text h3 {
  font-family: var(--font-accent);
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.exchange-text p {
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.7;
}
.exchange-visual {
  flex: 1;
  position: relative;
}
.exchange-mockup {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid rgba(47,180,165,0.2);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--grad-brand);
  color: var(--text-primary);
}
.btn-primary:hover {
  box-shadow: 0 4px 24px rgba(47,180,165,0.3);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 1px solid var(--teal);
}
.btn-outline:hover {
  background: rgba(47,180,165,0.1);
}

/* ---------- Impact ---------- */
.impact-badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 56px;
}
.badge-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.1);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: var(--transition);
}
.badge-card:hover {
  border-color: rgba(47,180,165,0.3);
}
.badge-card img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}
.badge-card .badge-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.badge-card .badge-info p {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.impact-mission {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-top: 48px;
}
.impact-photo {
  width: 280px;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
  border: 1px solid rgba(47,180,165,0.15);
}
.impact-text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.impact-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* ---------- Research ---------- */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.research-card {
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.1);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.research-card:hover {
  border-color: rgba(47,180,165,0.3);
  transform: translateY(-4px);
}
.research-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  width: fit-content;
}
.tag-arch { background: #00357a; color: #fff; }
.tag-workforce { background: #661414; color: #fff; }
.tag-compliance { background: #053827; color: #fff; }
.tag-platform { background: #2c0a71; color: #fff; }
.research-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.research-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 20px;
}
.research-card .btn {
  padding: 10px 24px;
  font-size: 0.8rem;
  align-self: flex-start;
}

/* ---------- Contact ---------- */
.contact-inner {
  text-align: center;
}
.contact-logo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 32px;
  opacity: 0.9;
}
.contact-email {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  margin: 32px 0 16px;
}
.contact-email a {
  transition: color var(--transition);
}
.contact-email a:hover {
  color: var(--teal);
}
.contact-cta {
  margin-top: 24px;
}
.contact-access {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.contact-access h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}
.contact-access p {
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
  font-size: 0.95rem;
}

/* ---------- About Feature Grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 48px;
  margin-bottom: 48px;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.08);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.feature-item:hover {
  border-color: rgba(47,180,165,0.25);
}
.feature-item .feat-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.feature-item p {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ---------- In the Field ---------- */
.field-section {
  position: relative;
  overflow: hidden;
}
.field-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 50%, rgba(6,83,32,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.field-intro {
  text-align: center;
  margin-bottom: 48px;
}
.field-intro p.field-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 750px;
  margin: 0 auto;
  line-height: 1.7;
}
.quote-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.quote-card {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  aspect-ratio: 3/4;
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.1);
  transition: var(--transition);
}
.quote-card:hover {
  border-color: rgba(47,180,165,0.3);
  transform: translateY(-4px);
}
.quote-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--bg-card);
  border: 1px solid rgba(47,180,165,0.08);
  border-radius: var(--radius-sm);
}
.stat-num {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.field-hero-img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(47,180,165,0.15);
  margin-bottom: 32px;
}
.field-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.footer {
  padding: 32px 5%;
  text-align: center;
  border-top: 1px solid rgba(47,180,165,0.1);
  font-size: 0.8rem;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 12px;
}
.footer-links a:hover { color: var(--teal); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    background: rgba(5,5,5,0.98);
    backdrop-filter: blur(20px);
    padding: calc(var(--nav-height) + 32px) 32px 32px;
    gap: 24px;
    border-left: 1px solid rgba(47,180,165,0.15);
    transition: right var(--transition);
  }
  .nav-links.open { right: 0; }
  .hamburger { display: flex; }

  .exchange-content { flex-direction: column; }
  .impact-mission { flex-direction: column; }
  .impact-photo { width: 100%; height: 280px; }
}
@media (max-width: 600px) {
  :root {
    --section-pad: 64px 5%;
  }
  .hero-title { letter-spacing: 0.06em; }
  .pillars { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr 1fr; }
  .impact-badges { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .quote-grid { grid-template-columns: 1fr 1fr; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}
/* ========== RESEARCH ========== */
.research-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.research-card { background: var(--bg-card); border: 1px solid rgba(47,180,165,0.15); border-radius: var(--radius); padding: 32px 24px; display: flex; flex-direction: column; align-items: flex-start; transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease; position: relative; overflow: hidden; }
.research-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--teal), var(--amber), var(--blue)); opacity: 0; transition: opacity 0.35s ease; }
.research-card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0,0,0,0.5); border-color: rgba(47,180,165,0.4); }
.research-card:hover::before { opacity: 1; }
.research-tag { font-size: 0.65rem; letter-spacing: 0.15em; font-weight: 600; text-transform: uppercase; padding: 6px 12px; border-radius: 4px; margin-bottom: 20px; }
.tag-arch { background: rgba(47,180,165, 0.15); color: #4ae0d0; }
.tag-workforce { background: rgba(59,130,246, 0.15); color: #93c5fd; }
.tag-compliance { background: rgba(168,85,247, 0.15); color: #d8b4fe; }
.tag-platform { background: rgba(234,179,8, 0.15); color: #fde047; }
.research-card h3 { font-size: 1.25rem; margin-bottom: 12px; font-weight: 500; line-height: 1.4; color: var(--text-primary); }
.research-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; margin-bottom: 32px; flex-grow: 1; }
.research-card .btn-outline { align-self: flex-start; padding: 8px 24px; font-size: 0.85rem; border-color: rgba(255,255,255,0.2); color: var(--text-muted); }
.research-card:hover .btn-outline { border-color: var(--teal); color: var(--teal); }