:root{
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
}


@media (prefers-reduced-motion: no-preference){
  :root{
    --dur-fast: .18s;
    --dur: .28s;
    --ease: cubic-bezier(.2,.8,.2,1);
  }
}


body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  background: linear-gradient(#F8F9FA, #DEECFB);
  color: #222;
  line-height: 1.65;
  letter-spacing: .1px;
}

.header-banner {
  background: linear-gradient(#F8F9FA, #DEECFB);
}

header {
  color: black;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  justify-content: flex-start;
}

nav a {
  color: black;
  text-decoration: none;
}
/* context area */
.context-grid{ display:grid; grid-template-columns: 1.3fr .7fr; gap: 2rem; align-items:start; }
.context-text p{ margin-top:.5rem; }
.quick-facts{
  display:grid; gap:.65rem;
}

main {
  max-width: 1080px;   
  padding-inline: var(--space-6);
  padding-block: var(--space-7);
  margin: 0 auto;
        
  height: auto;
  padding: 2rem;
  overflow: hidden;
}

.hero img {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 2rem;
}


.intro{
  margin: 30px;
}

.intro h2 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.quick-facts{
  display:grid; gap:.65rem;
}

.quick-facts div {
  background: #f0f0f0;
  padding: 1rem;
  border-radius: 6px;
  flex: 1 1 200px;
}

.problem{
  margin: 30px;
}
.problem-cards{
  display:flex
}

.card{
  background-color: #dad6d6;
  margin: 10px;
  border-radius: 20px;
  padding: 20px;
  border: 1px solid black;
}

section {
  margin-top: 3rem;
}

img {
  width: 100%;
  border-radius: 6px;
  margin: 1rem 0;
}

ul {
  padding-left: 1.5rem;
}

.initial-design-container {
  display:flex;
}

.inital-design {
  width: 40%;
  gap: 5px;
}

.early-ui, .final-iterations {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.early-ui img,
.final-iterations img {
  flex: 1 1 45%;
}

footer {
  text-align: center;
  padding: 3rem;
  background: #DEECFB;
  margin-top: 4rem;
  border-top: 1px solid #ccc;

}


a, .card, .hero img, img, .quick-facts div, .navbar h1 {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}

.accent { color: var(--accent); }
.subtle { color: var(--ink-subtle); }

h2, h3 {
  position: relative;
  display: inline-block;
}
h2::after, h3::after {
  content:"";
  position:absolute;
  left:0; bottom:-6px;
  width: 42%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transition: width var(--dur) var(--ease);
}
h2:hover::after, h3:hover::after { width: 72%; }

nav a {
  position: relative;
  font-weight: 500;
}
nav a::after {
  content:"";
  position:absolute; left:0; bottom:-4px;
  height:2px; width:0%;
  background: var(--accent);
  transition: width var(--dur) var(--ease);
}
nav a:hover { color: var(--accent); }
nav a:hover::after { width:100%; }
nav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

/* Hero image + all imgs: gentle lift on hover */
.hero img, .final-designs img, .initial-design-container img, .iterations img {
  will-change: transform;
  transform-origin: center center;
  box-shadow: 0 2px 10px rgba(0,0,0,.06);
}
.hero img:hover,
.final-designs img:hover,
.initial-design-container img:hover,
.iterations img:hover {
  transform: scale(1.02);
  box-shadow: 0 10px 30px rgba(0,0,0,.15);
}

.problem-cards { gap: 10px; }
.card {
  border-radius: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.card h2 { color: var(--accent); margin-top: 0; }
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,.18);
}

.quick-facts div {
  position: relative;
  border-left: 4px solid transparent;
}
.quick-facts div:hover {
  border-left-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,.1);
}

section a { color: var(--accent); }
section a:hover { text-decoration: underline; }

.tag {
  display:inline-block; padding:.25rem .6rem;
  border-radius:999px; background: rgba(106,92,255,.12);
  color: var(--accent); font-size:.85rem; font-weight:600;
}

/* Subtle entrance animation for big visuals on load (no JS) */
@keyframes fadeSlideUp {
  from { opacity:0; transform: translateY(8px); }
  to   { opacity:1; transform: translateY(0); }
}
.hero img, .final-designs img, .initial-design-container img {
  animation: fadeSlideUp .6s var(--ease) 1 both;
}

.button {
  display:inline-block; padding:.7rem 1rem; border-radius:10px;
  background: var(--accent); color:#fff; text-decoration:none; font-weight:600;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur-fast) var(--ease);
}
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.18); }
.button:active { transform: translateY(0); }

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

.navbar {
  display: flex;
  align-items: center;
  justify-content:right;
  gap: 1rem;
}

.nav-toggle {
  display: none;          
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px auto;
  transition: transform var(--dur, .28s) var(--ease, cubic-bezier(.2,.8,.2,1)),
              opacity var(--dur, .28s) var(--ease, cubic-bezier(.2,.8,.2,1));
  transform-origin: center;
}

.navbar.is-open .nav-toggle .bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.navbar.is-open .nav-toggle .bar:nth-child(2) { opacity: 0; }
.navbar.is-open .nav-toggle .bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

#siteNav .nav-list {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

@media (max-width: 700px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  #siteNav {
    position: absolute;
    top: 64px;              
    right: 16px;
    z-index: 1000;
  }

  #siteNav .nav-list {
    display: none;
    flex-direction: column;
    gap: .25rem;
    min-width: 200px;
    padding: .6rem;
    background: #111;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(0,0,0,.35);
    transition: transform var(--dur, .28s) var(--ease, cubic-bezier(.2,.8,.2,1)),
                opacity var(--dur, .28s) var(--ease, cubic-bezier(.2,.8,.2,1));
    transform: translateY(-6px);
    opacity: 0;
  }

  .navbar.is-open #siteNav .nav-list {
    display: flex;
    transform: translateY(0);
    opacity: 1;
  }

  #siteNav a {
    display: block;
    padding: .6rem .75rem;
    border-radius: 8px;
  }
  #siteNav a:hover,
  #siteNav a:focus-visible {
    background: rgba(255,255,255,.08);
    color: var(--accent, #6a5cff);
    outline: none;
  }

  header { 
    padding: 1rem; 
  }

  .navbar { 
    align-items: flex-end; 
  }
}


:root{ --accent:#264fc2; --dur:.28s; --ease:cubic-bezier(.2,.8,.2,1); }

/* nav layout (same as home) */
header nav ul{
  list-style:none;
  display:flex;
  gap:1.5rem;
  margin:0;
  padding:1rem 2rem;          /* ← same padding as home */
  align-items:center;
}

/* links */
header nav ul a{
  position:relative;
  display:inline-block;
  color:#111;
  text-decoration:none;
  font-weight:600;
  padding:.25rem 0;
  transition:color var(--dur) var(--ease);
}

/* animated underline */
header nav ul a::before{
  content:"";
  position:absolute; left:0; right:0; bottom:-6px;
  height:2px; background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--dur) var(--ease);
}

/* hover */
header nav ul a:hover{
  color:var(--accent);
}
header nav ul a:hover::before{
  transform:scaleX(1);
}

/* keyboard focus */
header nav ul a:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:4px;
  border-radius:6px;
}

/* active link */
header nav ul a[aria-current="page"]{
  color:var(--accent);
}
header nav ul a[aria-current="page"]::before{
  transform:scaleX(1);
}



/* base layout */
.site-nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:1rem; padding: .75rem 1rem; background:#fff; border-bottom:1px solid #ccc;
}
.site-nav .brand{ font-weight:700; text-decoration:none; color:#111; }

.nav-toggle{
  display:none; /* hidden on desktop */
  border:1px solid #ddd; background:#fff; border-radius:10px;
  padding:.45rem .7rem; font-weight:600; cursor:pointer;
}

.nav-list{
  display:flex; gap:1rem; margin:0; padding:0; list-style:none;
}
.nav-list a{ white-space:nowrap; text-decoration:none; color:#111; font-weight:600; }

/* mobile behavior */
@media (max-width:700px){
  .nav-toggle{ display:inline-flex; }
  .nav-list{
    position:absolute; left:0; right:0; top:56px;
    z-index: 1000;               /* on top */
    width: 100%;
    background:#fff; border-bottom:1px solid #ddd;
    padding:.75rem 1rem;
    display:flex; flex-direction:column; gap:.25rem;
  }
  .nav-list[hidden]{ display:none; }   /* put this OUTSIDE any @media */

}

/* anchor dropdown under header */
.site-nav{ position:relative; z-index:10; }

/* hamburger button styling */
.nav-toggle{
  display:none; align-items:center; justify-content:center;
  width:42px; height:42px; padding:8px; border:1px solid #ddd; border-radius:10px;
  background:#fff; cursor:pointer;
}
.nav-toggle .bar{ display:block; width:22px; height:2px; margin:4px 0; background:#111; }

/* desktop menu */
#siteMenu[hidden]{ display:none; }
.nav-list{ display:flex; gap:1rem; margin:0; padding:0; list-style:none; }
.nav-list a{ white-space:nowrap; }

/* mobile */
@media (max-width:700px){
  .nav-toggle{ display:inline-flex; }
  /* collapse menu by default; show as a panel when toggled */
  #siteMenu{
    position:absolute; left:0; right:0; top:64px;
    background:#fff; border-bottom:1px solid #ddd;
    padding:.75rem 1rem;
  }
  #siteMenu[hidden]{ display:none; }
  .nav-list{ flex-direction:column; gap:.25rem; }
  .nav-list a{ display:block; padding:.6rem .5rem; border-radius:8px; }
  .nav-list a:hover,
  .nav-list a:focus-visible{ background:rgba(0,0,0,.04); outline:none; }
}