:root {
  --font-sans-serif: "Montserrat", sans-serif;
  --font-serif: "Merriweather", serif;

  --color-accent: #cbd4cc;
  --color-light: #dbcfb7;
  --color-mid: #af9b89;
  --color-dark: #46362f;

  /*
  --color-accent: #cbd4cc;
  --color-light: #dbcdad;
  --color-mid: #b39c7d;
  --color-dark: #4d3a2b;
  */

  --color-link: rgb(41, 101, 168);
  --color-outline: rgb(99, 167, 245);

  --outline-thickness: 4px;

  --gap-tiny: 0.25rem;
  --gap-small: 1rem;
  --gap-medium: 2rem;
  --gap-large: 4rem;

  --min-label-height: 4rem;

  --min-nav-height: 4rem;

  --mobile-header-height: 240px;
  --desktop-header-height: 360px;

  --section-heading-height: 120px;

  --mobile-thumbnail-width: minmax(4rem, 25%);

  --annotated-image-min-width: 8rem;
  --annotated-image-max-height: 8rem;

  --background-blur-amount: 4px;
  --background-saturation-amount: 0.4;

  --mobile-anchor-offset: 10rem;
  --desktop-anchor-offset: 4rem;

  --interact-animate-time: 200ms;
  --scroll-animate-time: 1200ms;

  --scroll-animate-offset: 4rem;
}

html {
  scroll-behavior: smooth;
  font-size: calc(12px + 4 * ((100vw - 320px) / 880));
}

@media (max-width: 320px) {
  html {
    font-size: 12px;
  }
}

@media (min-width: 320px) and (max-width: 1200px) {
  html {
    font-size: calc(12px + 4 * ((100vw - 320px) / 880));
  }
}

@media (min-width: 1200px) {
  html {
    font-size: 16px;
  }
}

/* Blur will bleed out at edges - this allows us to bleed into a theme color, which looks better than pure white */
body {
  background-color: var(--color-accent);
}

h1, h3, h4, h5, h6 {
  font-family: var(--font-sans-serif);
  font-weight: bold;
}

h2 {
  font-family: var(--font-serif);
  font-weight: bold;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

p {
  font-family: var(--font-serif);
  line-height: 2rem;
  margin-block-end: var(--gap-small);
}

p:last-child {
  margin-block-end: 0;
}

em {
  font-style: oblique;
}

b {
  font-weight: bold;
}

img {
  object-fit: cover;
  width: 100%;
  height: 100%;
}

img.focus-top {
  object-position: 50% 15%;
}

a {
  color: var(--color-link);
}

.banner-ornament {
  max-width: 4rem;
  max-height: 1rem;
  margin: 0 auto;
}

/* Offset anchors so we don't overscroll - actual offset is done in handleResize() */
a.anchor {
  display: block;
  position: relative;
  visibility: hidden;
}

/*
#contact-me, #about-me, #my-books, #my-articles {
  display: block;
  position: relative;
  visibility: hidden;
  top: calc(-1 * var(--mobile-anchor-offset));
}
*/

@media (min-width: 960px) {
  #contact-me, #about-me, #my-books, #my-articles {
    top: calc(-1 * var(--desktop-anchor-offset));
  }
}

.section {
  position: relative;
  width: 100%;
  padding: var(--gap-small) 0;
}

.section__background {
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
}

.bg-color--accent {
  background-color: var(--color-accent);
}

.bg-color--light {
  background-color: var(--color-light);
}

.bg-color--mid {
  background-color: var(--color-mid);
}

.bg-color--dark {
  background-color: var(--color-dark);
}

.bg-image {
  filter: blur(var(--background-blur-amount)) saturate(var(--background-saturation-amount));
  z-index: -2;
}

.bg-image--desk {
  background-image: url('images/Desk.jpeg');
}

.bg-image--plant {
  background-image: url('images/Plant.jpg');
}

.bg-image--desert {
  background-image: url('images/Desert.jpeg');
}

.bg-image--reflection {
  background-image: url('images/Reflection.jpeg');
}

.bg-image--pastoral {
  background-image: url('images/Pastoral.jpeg');
}

.bg-blend--dark {
  background-blend-mode: screen;
  background-color: var(--color-dark);
  filter: blur(var(--background-blur-amount)) brightness(0.5);
}

.bg-blend--light {
  background-blend-mode: overlay;
  background-color: var(--color-light);
}

.bg-blend--accent {
  background-blend-mode: overlay;
  background-color: var(--color-accent);
}

.section__content {
  padding: 0 var(--gap-small);
  max-width: 1200px;
  margin: 0 auto;
}

@media (min-width: 960px) {
  .section {
    padding: var(--gap-medium) 0;
  }

  .section__content {
    padding: 0 var(--gap-medium);
  }
}

nav {
  position: sticky;
  top: 0px;
  z-index: 100;
  height: minmax(var(--min-nav-height), auto);
  background-color: var(--color-light);
  border-bottom: 1px solid var(--color-dark);
  box-shadow: 0 .25rem 1rem .5rem rgba(0,0,0,.4);
}

nav > .section {
  margin: 0;
  padding: 0;
  height: 100%;
}

nav > .section > .section__content {
  height: 100%;
}

.nav-block {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto;
  padding: var(--gap-small);
}

.nav-block__logo, .nav-block__links {
  justify-self: center;
  align-self: center;
  font-family: var(--font-serif);
  text-align: center;
}

.nav-block__logo {
  margin-block-end: var(--gap-small);
}

.nav-block__links > ul > li {
  margin-block-end: var(--gap-tiny);
  padding: var(--gap-tiny);
}

.nav-block__links > ul > li:last-child {
  margin-block-end: 0;
}

.nav-block__links > ul > li > a {
  padding: var(--gap-tiny);
}

@media (min-width: 640px) {
  .nav-block {
    grid-template-columns: auto;
    grid-template-rows: auto;
  }

  .nav-block__logo {
    justify-self: start;
    margin-block-end: 0;
  }

  .nav-block__links {
    justify-self: center;
  }

  .nav-block__links > ul {
    display: flex;
  }

  .nav-block__links > ul > li {
    margin-block-end: 0;
    margin-inline-end: var(--gap-small);
    text-align: left;
  }

  .nav-block__links > ul > li:last-child {
    margin-inline-end: 0;
  }
}

.splash-with-overlap-block {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: var(--mobile-header-height) auto;
  gap: var(--gap-medium);
}

.title-block {
  position: relative;
  grid-row: 1;
  grid-column: 1;

  padding: var(--gap-medium);
  background-color: var(--color-mid);

  display: grid;
  justify-items: start;
  align-items: center;
}

.featured-article-block {
  grid-row: 2;
  grid-column: 1;

  padding: 0 var(--gap-medium);
  padding-bottom: var(--gap-medium);
  background-color: var(--color-dark);

  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: var(--section-heading-height) auto;
}

.featured-article-block > h3 {
  justify-self: left;
  align-self: center;
  text-align: left;
  font-size: 1.5rem;
  color: var(--color-accent);
  font-family: var(--font-serif);
}

.featured-article-block > h3::after {
  display: block;
  content: url('svgs/plantBanner-light.svg');
  object-fit: contain;
  height: 1rem;
  width: 0;
  transform: scale(0.2);
}

.featured-article-block > ul {
  display: grid;
  gap: var(--gap-medium);
}

.featured-article-block > ul > li {
  position: relative;
}

.article-link {
  display: block;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-rows: auto;
  grid-template-columns: var(--mobile-thumbnail-width) auto;
  text-decoration: none;
  transition: transform var(--interact-animate-time);
}

.article-link:hover {
  transform: scale(1.025);
}

*:focus {
  outline: var(--color-outline) solid var(--outline-thickness);
}

.article-link:focus {
  transform: scale(1.05);
}

.article-link__image {
  grid-column: 1;
  background-color: var(--color-accent);
}

.article-link__annotation {
  grid-row: 1;
  grid-column: 2;
  color: var(--color-accent);
  text-align: left;
  margin-left: 1rem;
  align-self: center;
}

.article-link__label {
  font-size: 1.25rem;
}

.article-link__sublabel {
  font-size: 0.75rem;
}

@media (min-width: 960px) {
  .splash-with-overlap-block {
    grid-template-rows: var(--desktop-header-height) auto;
    grid-template-columns: 2fr 1fr;
  }

  .featured-article-block {
    grid-column: 1 / 3;
  }

  h1 {
    font-size: 3.25rem;
  }

  h2 {
    font-size: 2.5rem;
  }

  h3 {
    font-size: 2rem;
  }

  p {
    font-size: 1.125rem;
    line-height: 2.25rem;
  }

  .featured-article-block > h3 {
    justify-self: center;
    text-align: center;
  }

  .featured-article-block > h3::after {
    width: 100%;
  }

  .featured-article-block > ul {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .article-link {
    grid-template-rows: auto minmax(var(--min-label-height), auto);
    grid-template-columns: auto;
  }

  .article-link__image {
    grid-row: 1;
  }

  .article-link__annotation {
    grid-column: 1;
    grid-row: 2;
    text-align: center;
    margin-left: 0;
    margin-top: 1rem;
    align-self: start;
  }

  .article-link__label {
    font-size: 1rem;
  }
}

/* Fixed image - for section annotations and other non-essential theming images */
.fixed-image {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  max-height: 100%;
  filter: sepia(0.5);
  opacity: 0.1;
  z-index: -1;
}

.fixed-image.left {
  left: 0;
}

.fixed-image.right {
  right: 0;
}

.annotated-image-block {
  margin: var(--gap-medium);
  position: relative;
  display: grid;
  grid-template-columns: auto;
  grid-template-rows: auto auto;
  gap: var(--gap-medium);
}

.annotated-image-block__image {
  grid-column: 1;
  grid-row: 1;
  outline: var(--color-dark) solid 1px;
  align-self: start;
}

.annotated-image-block__annotation {
  grid-column: 1;
  grid-row: 2;
}

.annotated-image-block__annotation > h3 {
  font-family: var(--font-serif);
  margin-block-end: 1.5rem;
}

@media (min-width: 480px) {
  .annotated-image-block {
    grid-template-columns: 25% auto;
    grid-template-rows: auto;
  }

  .annotated-image-block__image {
    margin: 0;
  }

  .annotated-image-block__annotation {
    grid-column: 2;
    grid-row: 1;
  }
}

.testimonial-block {
  margin: var(--gap-small);
  font-style: oblique;
}

.testimonial-block__quote {
  font-family: var(--font-sans-serif);
  font-weight: bold;
  font-size: 1.15rem;
  color: var(--color-light);
}

.testimonial-block__attribution {
  margin-block-start: var(--gap-small);
  text-align: right;
  color: var(--color-accent);
}

.testimonial-block__name { }

.testimonial-block__title {
  font-weight: lighter;
}

@media (min-width: 960px) {
  .testimonial-block {
    margin: var(--gap-medium);
  }

  .testimonial-block__quote {
    font-size: 1.5rem;
    line-height: 2.5rem;
  }

  .testimonial-block__name {
    font-size: 1.25rem;
  }

  .testimonial-block__title {
    font-size: 1rem;
  }
}

.two-boxes-block {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto auto;
  gap: var(--gap-small);
}

.two-boxes-block > div {
  padding: var(--gap-small);
}

.two-boxes-block > div > h3 {
  font-family: var(--font-serif);
  margin-block-end: var(--gap-small); 
}

@media (min-width: 960px) {
  .two-boxes-block {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
    gap: var(--gap-medium);
  }

  .two-boxes-block > div {
    padding: var(--gap-medium);
  }
}

.float-annotation {
  position: relative;
  margin-bottom: 1rem;
  outline: var(--color-dark) solid 1px;
}

@media (min-width: 480px) {
  .float-annotation {
    float: right;
    width: calc(100% / 3);
    margin-left: 1rem;
  }
}

@media (min-width: 960px) {
  .full-width-block {
    margin-inline: var(--gap-medium);
  }

  .float-annotation {
    margin-right: calc(-1 * var(--gap-medium));
  }
}

.book-block {
  background-color: var(--color-mid);
}

.book-block > h3 {
  color: var(--color-dark);
}

.book-block > h3::after {
  content: url('svgs/plantBanner-dark.svg');
}

.book-block .article-link__image {
  background-color: var(--color-dark);
}

.book-block .article-link__annotation {
  color: var(--color-dark);
}

/* Category Block Styles */

.article-feed-block {
  background: transparent;
}

.article-feed-leader {
  text-align: center;
  padding-block: var(--gap-medium);
  font-family: var(--font-serif);
  font-size: 2rem;
}

.featured-article-block.dark-on-light > h3,
.featured-article-block.dark-on-light .article-link__annotation {
  color: var(--color-dark);
}

.featured-article-block.dark-on-light > h3::after {
  content: url('svgs/plantBanner-dark.svg');
}

/* Old Article Styles */

.article-list > ul > li > h4 {
  color: var(--color-light);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-block-end: 1rem;
}

.article-list > ul > li > ul {
  display: grid;
  gap: var(--gap-medium);
  padding-inline-start: 1rem;
  border-inline-start: 1px solid var(--color-light);
}

@media (min-width: 960px) {
  .article-list > ul > li > h4 {
    text-align: center;
  }

  .article-list > ul > li > ul {
    padding-inline-start: 0;
    border-inline-start: none;
  }
}

/* Generic Ratio Box */

.aspect-ratio {
  position: relative;
  width: 100%;
  height: 0;
}

.aspect-ratio > * {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.aspect-ratio.aspect-ratio--portrait {
  padding-top: calc((4 / 3) * 100%);
}

.aspect-ratio.aspect-ratio--widescreen {
  padding-top: calc((9 / 16) * 100%);
}

/* Scroll Animation Classes */

#scroll-observer-portal {
  position: fixed;
  top: 0;
  bottom: 0;
  left: -100%;
  right: -100%;
}

.scroll-animate {
  opacity: 0;
  transition: transform var(--scroll-animate-time), opacity var(--scroll-animate-time);
}

.scroll-animate.scroll-animate-from-left {
  transform: translateX(calc(-1 * var(--scroll-animate-offset)));
}

.scroll-animate.scroll-animate-from-right {
  transform: translateX(var(--scroll-animate-offset));
}

.scroll-animate.scroll-animate-trigger {
  opacity: 1;
  transform: initial;
}

/* Shadow Classes */

.shadow {
  /* default to medium-depth shadow */
  box-shadow: 1rem 1rem 1rem rgba(0,0,0,0.2);
}

.shadow.shadow-deep {
  box-shadow: 1.5rem 1.5rem 1.5rem rgba(0,0,0,0.15);
}

.shadow.shadow-shallow {
  box-shadow: 0.5rem 0.5rem 0.5rem rgba(0,0,0,0.25);
}