/* Base reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #f4f4f4;
}


.navbar {
display: flex;
justify-content: space-between;
align-items: center;
position: sticky;
top: 0;
background: transparent;
z-index: 15;
padding: 0.25rem 1rem;
transition: top 0.3s;
}

/* logo */
.logo h1 {
  height: auto;
  width: auto;
  background: transparent;
  align-items: center;
  margin-bottom: 0;
  line-height: 0.9;
  font-size: 1.8em;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 700;
}

/* tagline below logo */
.logo .tagline {
  font-size: 0.8em;
  font-weight: 700;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  color: #333;
  display: block;
  margin-top: 5px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.social-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

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

.nav-links li {
position: relative;
}

.nav-links a {
text-decoration: none;
color: #000;
font-weight: 800;
text-transform: lowercase;
}

.nav-links a:hover {
color: #000;
text-decoration: underline;
}

.dropdown {
position: relative;
}

.dropdown > a {
position: relative;
z-index: 2;
}

/* Dropdown menu */
.dropdown-menu {
position: absolute;
top: 100%;
left: 0;
background-color: white;
border: 1px solid black; /* 1px all around */
display: none;
flex-direction: column;
min-width: 180px;
z-index: 5;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
display: flex;
}

.dropdown-menu li {
padding: 0.5rem 1rem;
border-bottom: 1px solid black;
background-color: white;
list-style: none;
}

.dropdown-menu li:last-child {
border-bottom: none;
}

.nav-links li {
position: relative;
}

.dropdown-menu a {
text-decoration: none;
color: black;
font-weight: normal;
display: block;
width: 100%;
}

.dropdown-menu a:hover {
background-color: #f4f4f4;
}

.paper-item img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}



/* mobile responsive */
img, video, canvas, svg { max-width: 100%; height: auto; display: block; }
iframe { max-width: 100%; }
body { overflow-wrap: anywhere; }

@media (max-width: 1200px){
  .video-grid { padding: 0 6rem 4rem; }
}

@media (max-width: 992px){
  .navbar { padding: .5rem 1rem; gap: .75rem; }
  .logo h1 { font-size: 1.6rem; }
  .logo .tagline { font-size: .85rem; }

  .nav-links { gap: 1rem; padding-right: 0; flex-wrap: wrap; }
  .dropdown-menu { min-width: 160px; }

  /* Carousel arrows a bit closer in on tablets */
  #prevSlide { left: 2vw; }
  #nextSlide { right: 2vw; }

  .roles-section { padding: 1.25rem; }
  .video-grid { padding: 0 3rem 3rem; }
}

@media (max-width: 560px){
  .logo h1 { font-size: 1.4rem; line-height: 1; }
  .video-grid { column-width: 150px; -webkit-column-width: 150px; }
  .brand-title { font-size: 1rem; }
  .field { padding: .55rem .65rem; }
}

.nav-toggle{
  display:none;
  position:relative;
  width:28px; height:18px;
  background:transparent; border:0; padding:0;
  cursor:pointer; outline-offset:4px;
}
.nav-toggle::before,
.nav-toggle::after{
  content:""; position:absolute; left:0; right:0;
  height:1.5px; background:#000;
  transition:transform .2s ease, top .2s ease, opacity .2s ease;
}
.nav-toggle::before{ top:3px; }
.nav-toggle::after { top:13px; }
.nav-toggle.is-active::before{ top:8px; transform:rotate(45deg); }
.nav-toggle.is-active::after { top:8px; transform:rotate(-45deg); }

.navbar{ z-index:1100; }

@media (max-width: 768px){

  .navbar { position:sticky; top:0; z-index:1100; flex-wrap:wrap; row-gap:.5rem; background-color: #f4f4f4;}
  .social-links { order:3; width:100%; justify-content:flex-start; }

  .nav-toggle{ display:block; margin-left:auto; }

  nav { position:relative; width:100%; }

  .nav-links{
    position:absolute; left:0; right:0; top:100%;
    display:block !important;          /* override desktop flex */
    max-height:0; overflow:hidden;
    padding:0; margin:0;
    background:rgba(255,255,255,.98);
    backdrop-filter:blur(6px);
    box-shadow:0 6px 24px rgba(0,0,0,.08);
    border:0 !important;
    transition:max-height .25s ease, padding .2s ease, margin .2s ease;
    z-index:1050;
  }

  .nav-links.is-open{
    padding:0;
    margin-top:.4rem;
    max-height:calc(100vh - 56px);
    overflow:auto;
    border:1px solid #000 !important;
    border-radius:6px; 
    background:#fff;
  }
  .nav-links.is-open > li{
    list-style:none;
    border-bottom:1px solid #000;
  }
  .nav-links.is-open > li:last-child{ border-bottom:none; }
  .nav-links a{ display:block; padding:.55rem 1rem; color:#000; }

  .dropdown:hover .dropdown-menu{ display:none !important; }
  .nav-links.is-open .dropdown-menu{
    position:static; display:none; width:100%;
    border:1px solid #000; border-radius:4px;
    background:#fff; margin:.5rem 1rem .5rem;
  }
  .nav-links.is-open .dropdown:focus-within .dropdown-menu{ display:block; }
  .nav-links.is-open .dropdown-menu li{
    list-style:none; border-bottom:1px solid #000;
  }
  .nav-links.is-open .dropdown-menu li:last-child{ border-bottom:none; }


}

@media (pointer: coarse){
  .arrow{ padding:.25rem; }
}

@media (max-width: 768px){
  .navbar { align-items: center; }
  .logo { flex: 0 0 auto; }
  nav { flex: 1 1 auto; }
  .nav-toggle { margin-left: auto; flex: 0 0 auto; }
}
.paper-item {
  margin-top: clamp(16px, 3vh, 48px);
}

@media (max-width: 992px) {
  .paper-item { 
    overflow-x: hidden;
    overflow-y: visible;
  }
  .paper-item img {
    height: auto;
    width: 125%; 
    max-width: none; 
    object-fit: contain; 
    object-position: left center;
    margin-left: -15%; 
    transform: none; 
    padding: 0; 
  }
}

/* Small phones */
@media (max-width: 430px) {
  .paper-item img {
    width: 150%;
    margin-left: -40%;
  }
}

@media (max-width: 375px) {
  .paper-item img {
    width: 165%;
    margin-left: -50%;
  }
}