/*  
  Name:
*/
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Mono:wght@300;400;700&family=Open+Sans:ital,wght@0,300;0,400;0,700;1,300;1,400;1,700&family=Roboto+Slab:wght@200;400;700&display=swap');

:root {
  --main-color-100: hsl(350, 50%, 90%);
  --main-color-200: hsl(350, 50%, 80%);
  --main-color-400: hsl(350, 50%, 50%);
  --main-color-600: hsl(350, 50%, 30%);
  --main-color-800: hsl(350, 25%, 15%);
  --accent-color-200: hsl(170, 50%, 80%);
  --accent-color-600: hsl(170, 35%, 40%);
  --accent-color-800: hsl(170, 25%, 15%);
  --shadow-color-800: hsla(350, 25%, 15%, .7);
  --font-body: 'Open Sans', sans-serif;
  --font-headings: 'Roboto Slab', serif;
  --font-code: 'Noto Sans Mono', monospace;
}

/* 🌙 Dark Mode */
body.dark-mode {
  --main-color-100: hsl(350, 25%, 10%);
  --main-color-200: hsl(350, 25%, 15%);
  --main-color-400: hsl(350, 25%, 25%);
  --main-color-600: hsl(350, 25%, 40%);
  --main-color-800: hsl(350, 25%, 90%);
  --accent-color-200: hsl(170, 25%, 25%);
  --accent-color-600: hsl(170, 35%, 55%);
  --accent-color-800: hsl(170, 50%, 80%);
  --shadow-color-800: hsla(350, 25%, 90%, 0.3);
  background-color: var(--main-color-100);
  color: var(--main-color-800);
}


*, *::after, *::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Layout */

body {
  font-family: var(--font-body);
  color: var(--main-color-800);
  background-color: var(--main-color-100);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.4s ease, color 0.4s ease;
}

body.dark-mode button.gradient {
  background: linear-gradient(to right, var(--accent-color-600), var(--accent-color-200));
  color: var(--main-color-800);
}


header {
  background-color: var(--main-color-800);
  color: var(--main-color-100);
  box-shadow: 0 4px 6px var(--shadow-color-800);
  padding: 0.5rem 0 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

header h1 {
  text-align: center;
  font-family: var(--font-headings);
}

/* Navigation */

nav {
  background-color: var(--accent-color-200);
  color: var(--accent-color-800);
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
}

nav a {
  text-decoration: none;
  color: var(--accent-color-800);
  padding: 0.4rem 0.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
}

nav a:hover,
nav a:focus {
  background-color: var(--accent-color-600);
  color: var(--main-color-100);
  outline: none;
}

/* Main content */

main {
  flex: 1;
  padding: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}

h2, h3, h4, h5, h6 {
  margin: 0.5rem 0 1rem;
  font-family: var(--font-headings);
}

main p {
  margin-bottom: 0.75rem;
}

/* Activity list */

#activity-list {
  margin: 0.5rem 0 0.5rem 1.5rem;
}

#activity-list li {
  padding: 0.25rem 0;
}

/* Footer */

footer {
  background-color: var(--main-color-400);
  color: var(--main-color-100);
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
}

/* Graphical elements */

/* Image caption figure */
figure.image-caption {
  background-color: white;
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  width: 50%;
  margin: 1.5rem auto;
  padding: 1rem;
  box-shadow: 0 10px 13px -7px var(--shadow-color-800);
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: 1fr;
}

figure.image-caption picture {
  grid-area: 1 / 1;
}

figure.image-caption figcaption {
  grid-area: 1 / 1;
  background-color: hsla(0, 0%, 0%, 0.5);
  color: var(--main-color-100);
  padding: 0.5rem;
  height: max-content;
  text-align: center;
  transform: rotateX(-90deg);
  transform-origin: top;
  transition: all 200ms ease-in-out;
}

figure.image-caption:hover figcaption {
  transform: rotateX(0deg);
}

figure.image-caption img {
  display: block;
  width: 100%;
}

figure.image-caption .image-source {
  font-size: 0.85em;
  margin-top: 0.5rem;
}

/* Code block figure */

figure.code-block {
  background-color: white;
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  width: 90%;
  margin: 1.5rem auto;
  padding: 1rem;
  box-shadow: 0 10px 13px -7px var(--shadow-color-800);
}

figure.code-block pre {
  font-family: var(--font-code);
  background-color: var(--main-color-800);
  color: var(--main-color-100);
  padding: 0.5rem;
  overflow: auto;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

figure.code-block figcaption {
  font-weight: bold;
  padding-bottom: 0.5rem;
}

/* Standalone code block */

.code-block {
  background-color: white;
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  width: 90%;
  margin: 1.5rem auto;
  padding: 1rem;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
}

pre {
  font-family: var(--font-code);
  background-color: var(--main-color-800);
  color: var(--main-color-100);
  padding: 0.5rem;
  overflow: auto;
  border-radius: 0.5rem;
}

#caption {
  font-weight: bold;
  padding-bottom: 0.5rem;
}

/* Graphic effects */

figure.filter-image {
  background-color: white;
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  width: 25rem;
  margin: 1.5rem auto;
  padding: 1rem;
  box-shadow: 0 10px 13px -7px var(--shadow-color-800);
  display: grid;
  grid-template-rows: 1fr;
  grid-template-columns: 1fr;
}

figure.filter-image picture {
  grid-area: 1 / 1;
  overflow: hidden;
}

figure.filter-image figcaption {
  grid-area: 1 / 1;
  background-color: hsla(0, 0%, 0%, 0.5);
  color: var(--main-color-100);
  padding: 0.5rem;
  height: max-content;
  text-align: center;
  transform: rotateX(-90deg);
  transform-origin: top;
  transition: all 200ms;
}

figure.filter-image:hover figcaption {
  transform: rotateX(0deg);
}

figure.filter-image img {
  display: block;
  width: 100%;
  filter: saturate(30%) blur(2px);
  transition: filter 200ms, transform 200ms;
}

figure.filter-image:hover img {
  filter: saturate(100%);
  transform: scale(1.15);
}

figure.filter-image .image-source {
  font-size: 0.85em;
  margin-top: 0.5rem;
}

/* Gradient styles */

.action-menu {
  background-color: var(--accent-color-200);
  border-top-left-radius: 2rem;
  border-bottom-left-radius: 2rem;
  width: fit-content;
  padding: 0.5rem;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
  display: flex;
  flex-flow: row nowrap;
  gap: 0.5rem;
  margin: 1.5rem auto;
}

button.gradient {
  border: none;
  border-radius: 2rem;
  padding: 0.75em 1.25em;
  background: linear-gradient(to right, var(--accent-color-200), var(--accent-color-600));
  color: var(--main-color-100);
  font-family: var(--font-body);
  font-size: 1em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  box-shadow: 0 0 10px var(--accent-color-600);
  transition: background 300ms ease-in-out, transform 200ms ease-in-out;
}

button.gradient:hover,
button.gradient:focus {
  background: linear-gradient(to left, var(--accent-color-200), var(--accent-color-600));
  transform: scale(1.05);
  outline: none;
}

button.gradient .material-icons {
  font-size: 1.2em;
}

.button-title {
  font-weight: 600;
}

/* Canvas */

canvas {
  border: 2px solid #444;
  display: block;
  margin: 1.5rem auto;
}

/* Download Page */

.download-section {
  margin: 2rem 0;
}

.download-section h3 {
  margin-bottom: 0.75rem;
}

.download-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.download-link {
  display: inline-block;
  padding: 0.75rem 1rem;
  background-color: var(--accent-color-200);
  color: var(--accent-color-800);
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
  transition: background 200ms ease-in-out, transform 150ms ease-in-out;
}

.download-link:hover,
.download-link:focus {
  background-color: var(--accent-color-600);
  color: var(--main-color-100);
  transform: scale(1.03);
  outline: none;
}

/* Gradient Demo Blocks */
.gradient-section {
  margin: 2rem 0;
}

.gradient-demo {
  width: 250px;
  height: 100px;
  border-radius: 0.5rem;
  margin: 1rem auto;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
  border: thin solid var(--accent-color-600);
}

/* Linear */
.linear-red {
  background: linear-gradient(to right, #ff8a8a, #d10000);
}

.linear-accent {
  background: linear-gradient(135deg, var(--accent-color-200), var(--accent-color-600));
}

/* Radial */
.radial-green {
  background: radial-gradient(circle, #b6ffd1, #00994d);
}

.radial-accent {
  background: radial-gradient(circle, var(--accent-color-200), var(--accent-color-800));
}

/* Conic */
.conic-blue {
  background: conic-gradient(from 90deg, #a8d8ff, #004c99);
}

.conic-accent {
  background: conic-gradient(from 0deg, var(--accent-color-200), var(--accent-color-600), var(--accent-color-800));
}

/* Repeating */
.repeating-stripes {
  background: repeating-linear-gradient(
    45deg,
    #ff8a8a,
    #ff8a8a 10px,
    #d10000 10px,
    #d10000 20px
  );
}

.repeating-radial {
  background: repeating-radial-gradient(
    circle,
    var(--accent-color-200),
    var(--accent-color-200) 10px,
    var(--accent-color-600) 10px,
    var(--accent-color-600) 20px
  );
}

/* Layered */
.layered-gradient {
  background:
    linear-gradient(to right, rgba(0,0,0,0.4), rgba(0,0,0,0)),
    url('images/sample.jpg');
  background-size: cover;
  background-position: center;
}

/* Gradient Generator */
.generator-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1rem 0;
  justify-content: center;
}

.generator-container label {
  font-weight: bold;
}

#gradientPreview {
  width: 300px;
  height: 120px;
  margin: 1rem auto;
  border-radius: 0.5rem;
  border: thin solid var(--accent-color-600);
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
}

/* Animated Gradient */
.animated-gradient {
  width: 300px;
  height: 120px;
  border-radius: 0.5rem;
  margin: 1rem auto;
  border: thin solid var(--accent-color-600);
  background: linear-gradient(270deg, #ff8a8a, #d10000, #00994d);
  background-size: 600% 600%;
  animation: gradientShift 12s ease infinite;
  border: 2px solid var(--accent-color-600);
  box-shadow: 0 0 15px var(--accent-color-600);
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Gradient Text */

.gradient-text {
  background: linear-gradient(to right, #ff8a8a, #d10000);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #d10000; /* fallback for Firefox */
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  display: inline-block;
  margin: 1.5rem auto;
}


/* Gradient Border */
.gradient-border-box {
  width: 300px;
  padding: 1rem;
  margin: 1rem auto;
  text-align: center;
  font-weight: bold;
  border: 6px solid;
  border-image: linear-gradient(to right, #ff8a8a, #d10000) 1;
  border-radius: 0.5rem;
  font-size: 1.1rem;
  width: 320px;
}

main {
  max-width: 960px;
  margin: 2rem auto;
  line-height: 1.6;
}

main h2 {
  font-family: var(--font-headings);
  color: var(--accent-color-800);
  margin-bottom: 0.5rem;
}

main p {
  max-width: 700px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}


h2, h3 {
  font-family: var(--font-headings);
  color: var(--accent-color-800);
}

label {
  font-weight: 600;
  margin-right: 0.5rem;
}

.generator-container {
  background-color: var(--accent-color-200);
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
}

.generator-container input[type="color"],
.generator-container input[type="number"] {
  border: none;
  border-radius: 0.25rem;
  padding: 0.25rem;
  cursor: pointer;
}

.media-gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
}

.media-card {
  background-color: white;
  border: thin solid var(--accent-color-600);
  border-radius: 0.5rem;
  box-shadow: 0px 10px 13px -7px var(--shadow-color-800);
  padding: 1rem;
  width: 300px;
  text-align: center;
}

.media-card:hover {
  transform: scale(1.05);
  transition: transform 200ms ease-in-out;
}

.media-card {
  transition: transform 200ms ease-in-out, box-shadow 200ms ease-in-out;
}

.media-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 20px -10px var(--shadow-color-800);
}

.media-card.playing {
  border-color: var(--accent-color-600);
  box-shadow: 0 0 10px var(--accent-color-600);
}

.media-card h3 {
  background: linear-gradient(to right, var(--accent-color-200), var(--accent-color-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}


audio, video {
  border-radius: 0.5rem;
  width: 100%;
}


.media-desc {
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.media-scroll {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 1rem;
}