/* tokens / variables */
:root {
    --scale: 1.20;
    --nav-gap-extra: 4rem;

    /* typography */
    --font-body: "IBM Plex Serif", serif;
    --base-font: 15px;
    --text-size: calc(var(--base-font) * var(--scale));
    --line-height: 1.5;

    /* layout */
    --nav-width: 13rem;
    --gutter: 2rem;
    --content-max: 140ch; 

    /* spacing */
    --space-0: 0.5rem;
    --space-1: 1rem;
    --space-2: 2rem;
    --space-3: 4rem;
    --space-5: 6.5rem;

    /* colors */
    --text-color: #131616c9;
    --link-color: #102828c9;
    --panel-bg: rgba(255, 255, 255, 0.65);

    /* image and thumbnail sizing */
    --thumb-min: 14.67rem; /* 220/15 */
    --strip-img-h: 42.33rem; /* 650/15 */
    --small-text: 0.87rem; /* 13/15 */
}

/* base */
html {
    font-size: var(--text-size);
}

.title h1 {
  font-weight: 200;
  font-size: calc(var(--text-size)*3);
}

html, 
body {
    height: 100%;
}

body {
    margin: 0;
    font-family: var(--font-body);
    line-height: var(--line-height);
    color: var(--text-color);
  }

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* accessible by keyboard */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
} 

/* primary nav layout */
nav[aria-label="Primary"] {
  width: var(--nav-width);
}

nav[aria-label="Primary"] ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

nav[aria-label="Primary"] a {

  display: inline-flex;
  align-items: center;
  text-decoration: none;
  padding: 0.1rem 0;
  color: var(--link-color);
}

/* each link contains image of handwriting */
nav[aria-label="Primary"] a img {
  display: block;
  width: auto;
  height: 2.5rem;   /* baseline */
}

nav[aria-label="Primary"] a img.nav-label--objects,
nav[aria-label="Primary"] a img.nav-label--writing {
  height: 2.7rem;   /* bump these two */
}

nav[aria-label="Primary"] a img.nav-label--cv-contact {
  height: 1.5rem;
}


/* base: homepage */
body[data-page="home"] .background{
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: calc(var(--gutter) + var(--nav-width) + var(--nav-gap-extra)); /* nav + gutters */
  z-index: -1;
  background-image: url("../assets/ui/home.jpg");
  background-size: cover;
  background-position: center;
  pointer-events: none;
}


body[data-page="home"] main h1{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body[data-page="home"] main{
  font-size: 1.3rem;
  margin-left: calc(var(--gutter) + var(--nav-width) + var(--gutter) + var(--nav-gap-extra));

}

/* layout */
nav[aria-label="Primary"] {
    position: fixed;
    top: var(--gutter);
    left: var(--gutter);
    width: var(--nav-width); 
}
  
nav[aria-label="Primary"] a {
    display: block;
}

.nav-text {
  display: none;
}

.mobile-nav { 
  display: none; 
}

.desktop-nav { 
  display: block; 
}

.nav-home{
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0; /* match nav link padding */
}

main {
    margin-left: calc(var(--gutter) + var(--nav-width) + var(--nav-gap-extra));
    max-width: var(--content-max);
    padding: var(--space-3);
}

/* base: links */
a {
  color:var(--link-color);
  text-decoration:underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

/* base: gallery pages */
/* objects gallery: grid */
body[data-page="objects"] .object-gallery {
  margin: var(--space-2) 0;
  display: grid;
  gap: var(--space-2);
  grid-template-columns: repeat(auto-fit, minmax(var(--thumb-min), 1fr));
}

/* objects gallery: card link */
body[data-page="objects"] .object-card {
  display: block;
  color: inherit;
}

/* objects gallery: thumbnail frame (no crop) */
body[data-page="objects"] .object-thumb {
  width: 100%;
  aspect-ratio: 4 / 4;
  object-fit: contain;         
  background: var(--panel-bg);  
  display: block;
  transition: opacity 150ms ease;
}

/* objects gallery: title */
body[data-page="objects"] .object-title {
  margin-top: var(--space-0);
  font-weight: 200;
}

/* hover + keyboard focus */
body[data-page="objects"] .object-card:hover .object-thumb {
  opacity: 0.75;
}

body[data-page="objects"] .object-card:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

/* index pages: writing + objects + cv/contact*/
body[data-page="writing"] main h1,
body[data-page="objects"] main h1,
body[data-page="cv-contact"] main h1 {
  font-weight: 200;
  font-style: italic;
  margin: 0 0 var(--space-2);
}

body[data-page="writing"] main ul,
body[data-page="objects"] main ul,
body[data-page="cv-contact"] main ul {
  margin: var(--space-2) 0;
  padding: 0;
}

body[data-page="writing"] main li,
body[data-page="objects"] main li, 
body[data-page="cv-contact"] main li {
  margin: 0 0 var(--space-0);
}

body[data-page="writing"] main li a,
body[data-page="objects"] main li a, 
body[data-page="cv-contact"] main li a {
  display: inline-block;
  padding: 0.15rem 0;
}

body[data-page="writing"] main,
body[data-page="objects"] main {
  font-size: 1.3rem;
}


/* components */
/* component: image strip */

.image-strip {
  padding-right: 3.5rem; /* extends image strip by same width of fade effect upon last image */
  margin: var(--space-2) 0;
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
}

.image-strip figure {
  margin: 0;
}

.image-strip img {
  height: var(--strip-img-h);
  width: auto;
  display: block;
}

.image-strip a:hover img {
  opacity: 0.8;
}

.image-strip a:focus-visible img { /* for keyboard nav*/
  opacity: 0.82;
  outline: 2px solid currentColor;
  outline-offset: 4px;
}

/* object images detail: horizontal scroll hint */
.object-work-images {
  position: relative;
}
.object-work-images::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 3.5rem;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(to left, var(--panel-bg), rgba(255,255,255,0));
}

.object-work-images::before {
  content: "";
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0.55;
}

/* stacked panoramas: for Moments page, narrow the column so they read larger */
.object-work--stacked .object-work-images {
  max-width: 250ch;
}

.object-work--stacked .image-strip {
  display: block;
  overflow: visible;
}

.object-work--stacked .image-strip li {
  margin: 0 0 var(--space-0);
}

.object-work--stacked .image-strip img {
  width: 100%;
  height: auto;
  max-height: none;
}

.object-work--stacked .object-work-stacked-year {
  margin-top: var(--space-0);
  font-weight: 200;
}

/* allow a horizontal strip inside an otherwise-stacked object page */
.object-work--stacked .image-strip--scroll {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: 0;
  margin: var(--space-2) 0;
}

.object-work--stacked .image-strip--scroll li {
  margin: 0; /* undo stacked li spacing */
}

.object-work--stacked .image-strip--scroll img { 
  height: var(--strip-img-h); 
}


.object-work-image-year {
  margin-top: var(--space-0);
  font-weight: 200;
}

/* component: object work info */
.object-work-header h1 {
  font-weight: 200;
  font-style: italic;
  margin-top: calc(var(--space-2) *-1);
}

.object-work-year-medium {
  font-weight: 200;
  margin-top: var(--space-3);
}

.object-work-description {
  font-weight: 400;
}

/* component: writing work info */
.writing-work-header h1 {
  font-weight: 200;
  font-style: italic;
  margin: 0 0 var(--space-2);
}

.writing-work-year {
  font-weight: 200;
  margin:0 ;
}

.writing-work-text {
  font-weight: 400;
  max-width: 90ch;
  margin-top: var(--space-1);
  margin-bottom: var(--space-3);
}

.writing-work-text h2 {
  font-weight: 400;
}
.writing-work-text p {
  margin: 0 0 var(--space-1);
}

.writing-pdf {
  width: 100%;
  height: 90vh;
  border: 0;
  display: block;
}

.writing-work-text .writing-figure {
  max-width: 90ch;
}

.writing-work-text .writing-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.writing-work-text hr {
  border: 0;
  border-top: 1px solid currentColor;
  opacity: 0.25;
  margin: var(--space-2) 0;
}

.writing-work-text li {
  font-size: var(--small-text);;
}

/* cv/contact page */
.cv-contact-header {
  font-weight: 200;
  font-style: italic;
  margin-top: var(--space-2);
}
/* component: back/forward links */
.nav-links {
  margin-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
}

/* mobile styling */
@media (max-width: 800px){

  /* HOME: full-bleed image + readable mobile menu panel */
  body[data-page="home"] .background{
    left: 0;
  }

  body[data-page="home"] .mobile-nav{
    background: var(--panel-bg);
    padding: 0.75rem 1rem;
    border-radius: 0.2rem;
    display: inline-block;
  }

  @supports (backdrop-filter: blur(8px)){
    body[data-page="home"] .mobile-nav{
      backdrop-filter: blur(8px);
    }
  }

  /* ALL PAGES: show mobile menu, hide desktop nav */
  .desktop-nav{
    display: none;
  }

  .mobile-nav{
    display: block;
    margin: 0.75rem;
    position: relative;
    z-index: 10;
  }

  /* content uses full width */
  main{
    margin-left: 0;
    padding: var(--space-2);
  }

  /* make the scroll strip manageable */
  :root{ --strip-img-h: 24rem; }

  /* details menu styling */
  .mobile-nav summary{
    cursor: pointer;
    font-size: 1rem;
    text-decoration: underline;
    text-underline-offset: 0.18em;
  }

  .mobile-nav summary::-webkit-details-marker{
    display: none;
  }

  .mobile-nav ul{
    margin-top: var(--space-1);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .mobile-nav ul a{
    color: var(--link-color);
    text-decoration: underline;
    text-underline-offset: 0.18em;
    text-decoration-thickness: 1px;
    padding: 0.25rem 0;
  }

  .mobile-nav ul a:hover{
    text-decoration-thickness: 2px;
  }
}
/* mobile styling */
@media (max-width: 800px){

  /* HOME: full-bleed image + readable mobile menu panel */
  body[data-page="home"] .background{
    left: 0;
  }

  /* home overlay sizing knob */
  body[data-page="home"] .mobile-nav{
    background: var(--panel-bg);
    padding: 0.75rem 1rem;
    border-radius: 0.2rem;

    display: inline-block;      /* shrink-wrap */
    width: fit-content;
    max-width: 18rem;           /* <- adjust this */
  }

  body[data-page="home"] .mobile-nav img{
    max-width: 100%;
    height: auto;
    display: block;
  }

  @supports (backdrop-filter: blur(8px)){
    body[data-page="home"] .mobile-nav{
      backdrop-filter: blur(8px);
    }
  }

  /* ALL PAGES: show mobile menu, hide desktop nav */
  .desktop-nav{
    display: none;
  }

  .mobile-nav{
    display: block;
    margin: 0.75rem;
    position: relative;
    z-index: 10;
  }

  /* content uses full width */
  main{
    margin-left: 0;
    padding: var(--space-2);
  }

  /* make the scroll strip manageable */
  :root{ --strip-img-h: 24rem; }

  /* details menu styling */
  .mobile-nav summary{
    cursor: pointer;
    font-size: 1rem;
    text-decoration: underline;
    text-underline-offset: 0.18em;
  }

  .mobile-nav summary::-webkit-details-marker{
    display: none;
  }

  .mobile-nav ul{
    margin-top: var(--space-1);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .mobile-nav ul a{
    color: var(--link-color);
    text-decoration: underline;
    text-underline-offset: 0.18em;
    text-decoration-thickness: 1px;
    padding: 0.25rem 0;
  }

  .mobile-nav ul a:hover{
    text-decoration-thickness: 2px;
  }
}