@font-face {
  font-family: "Roboto";
  src: url("/fonts/roboto-latin.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* The app's palette (app/src/main/java/tv/hackertube/Theme.kt), plus a hover step for the orange. */
  --black: #000000;
  --gray-950: #0F0F0F;
  --gray-900: #272727;
  --gray-400: #AAAAAA;
  --gray-100: #F1F1F1;
  --orange-500: #FF6600;
  --orange-400: #FF7A3C;
  --blue-400: #3EA6FF;

  --color-bg: var(--gray-950);
  --color-bg-surface: var(--gray-900);
  --color-bg-code: var(--gray-950);
  --color-bg-device: var(--black);
  --color-text: var(--gray-100);
  --color-text-secondary: var(--gray-400);
  --color-text-link: var(--blue-400);
  --color-text-accent: var(--orange-500);
  --color-text-on-accent: var(--gray-950);
  --color-accent-solid: var(--orange-500);
  --color-accent-solid-hover: var(--orange-400);
  --color-accent-glow: #FF66001F;
  --shadow-border: 0 0 0 1px #FFFFFF14;
  --image-outline: #FFFFFF1A;

  --font-sans: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --page-margin: clamp(1.25rem, 4vw, 2.5rem);
  --bezel: clamp(0.375rem, 1vw, 0.75rem);
}

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

html {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

h1,
h2,
h3,
p,
figure,
pre {
  margin: 0;
}

:focus-visible {
  outline-offset: 3px;
}

a {
  color: var(--color-text-link);
  text-decoration-line: underline;
  text-decoration-thickness: from-font;
  text-underline-position: from-font;
  transition-property: color;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

@media (hover: hover) {
  a:hover {
    color: var(--color-text);
  }
}

code,
pre {
  font-family: var(--font-mono);
}

.container {
  width: min(100% - 2 * var(--page-margin), 70rem);
  margin-inline: auto;
}

/* Hero */

.hero {
  padding-block: clamp(3rem, 8vw, 6rem) 1rem;
  background: radial-gradient(in oklab 70% 35% at 50% 62%, var(--color-accent-glow), transparent);
}

.mark {
  display: block;
  width: 3.5rem;
  height: 3.5rem;
}

.mark rect {
  fill: var(--color-accent-solid);
}

.mark path {
  fill: var(--color-text);
}

h1 {
  margin-block-start: 1.5rem;
  font-size: clamp(2.5rem, 1.5rem + 4.5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.brand {
  color: var(--color-text-accent);
}

.lede {
  max-width: 34rem;
  margin-block-start: 1rem;
  color: var(--color-text-secondary);
  font-size: 1.25rem;
  text-wrap: pretty;
}

.actions {
  margin-block-start: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 3.5rem;
  padding-inline: 1.375rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  background: var(--color-accent-solid);
  color: var(--color-text-on-accent);
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  transition-property: background-color, scale;
  transition-duration: 150ms;
  transition-timing-function: ease-out;
}

.button svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: currentColor;
}

@media (hover: hover) {
  .button:hover {
    background: var(--color-accent-solid-hover);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .button:active {
    scale: 0.96;
  }
}

.meta {
  margin-block-start: 0.75rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* The screenshot sits in a TV bezel with a stand under it. */
.tv {
  position: relative;
  margin-block: clamp(2.5rem, 6vw, 4rem) 1.5rem;
  padding: var(--bezel);
  border: 1px solid transparent;
  border-radius: calc(var(--radius-sm) + var(--bezel));
  background: var(--color-bg-device);
  box-shadow: var(--shadow-border);
}

.tv::after {
  content: "";
  position: absolute;
  inset-block-start: 100%;
  inset-inline: 38%;
  height: calc(var(--bezel) * 1.5);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--color-bg-surface);
}

.tv img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  outline: 1px solid var(--image-outline);
  outline-offset: -1px;
}

/* The hero enters in order: mark, title, pitch, download, screenshot. */
.enter {
  animation: fade-in 300ms ease-out both;
}

.enter:nth-child(2) { animation-delay: 100ms; }
.enter:nth-child(3) { animation-delay: 200ms; }
.enter:nth-child(4) { animation-delay: 300ms; }
.enter:nth-child(5) { animation-delay: 400ms; }

@media (prefers-reduced-motion: no-preference) {
  .enter {
    animation-name: fade-in-up;
  }
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
    filter: blur(4px);
  }
}

/* Sections */

.section {
  padding-block: clamp(4rem, 10vw, 6rem) 0;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.intro,
.section p {
  max-width: 65ch;
}

.intro {
  margin-block-start: 0.75rem;
  color: var(--color-text-secondary);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  background: var(--color-bg-surface);
}

.card .icon {
  display: block;
  width: 1.5rem;
  height: 1.5rem;
  fill: currentColor;
}

h3 {
  margin-block-start: 1rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
}

.card p {
  margin-block-start: 0.5rem;
  color: var(--color-text-secondary);
}

.card strong {
  color: var(--color-text);
  font-weight: 500;
}

.card code {
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  background: var(--color-bg-code);
  color: var(--color-text);
  font-size: 0.875em;
  white-space: nowrap;
}

.card pre {
  margin-block-start: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-bg-code);
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.card pre code {
  padding: 0;
  background: none;
  font-size: inherit;
  white-space: inherit;
}

#credits + p {
  margin-block-start: 1rem;
}

.section p + p {
  margin-block-start: 0.5rem;
}

/* Footer */

.footer {
  padding-block: clamp(4rem, 10vw, 6rem) 3rem;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.5rem;
}

.footer a {
  display: inline-block;
  padding-block: 0.25rem;
  color: var(--color-text);
}

@media (hover: hover) {
  .footer a:hover {
    color: var(--color-text-link);
  }
}

.footer p {
  max-width: 65ch;
  margin-block-start: 0.75rem;
}