/* ==========================================================================
   Bored Button Landing — Design system
   ========================================================================== */

:root {
  /* Light mode */
  --color-bg: #FAFAFA;
  --color-surface: #F5F5F5;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-accent: #1A1A1A;
  --color-success: #4D7C5E;
  --color-warning: #B5923A;
  --color-error: #B55454;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', 'DM Sans', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;

  --text-h1: 700 2.5rem/1.2 var(--font-heading);
  --text-h2: 600 1.75rem/1.3 var(--font-heading);
  --text-h3: 600 1.125rem/1.35 var(--font-heading);
  --text-body: 400 1rem/1.6 var(--font-body);
  --text-small: 400 0.875rem/1.5 var(--font-body);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 5rem;

  /* Layout */
  --container-max: 72rem;
  --container-padding: 1.25rem;

  /* Motion */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --reveal-duration: 0.6s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #121212;
    --color-surface: #1E1E1E;
    --color-text: #F0F0F0;
    --color-text-secondary: #BDBDBD;
    --color-accent: #F0F0F0;
    --color-success: #7BAF8E;
    --color-warning: #D4B45C;
    --color-error: #CF6679;
  }
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: var(--text-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.page {
  min-height: 100vh;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Sections */
.section {
  padding-block: var(--space-2xl);
}
.section--alt {
  background: var(--color-surface);
}
.section__title {
  font: var(--text-h2);
  color: var(--color-text);
  margin: 0 0 var(--space-md);
}
.section__title--center {
  text-align: center;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.25rem;
  font: 500 1rem/1.25 var(--font-body);
  color: var(--color-bg);
  background: var(--color-accent);
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: opacity 0.2s var(--ease-out), transform 0.15s var(--ease-out);
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}
.btn:hover {
  opacity: 0.92;
  text-decoration: none;
}
.btn:active { transform: scale(0.98); }
.btn--primary {
}
.btn__icon {
  display: inline-flex;
  flex-shrink: 0;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-block: var(--space-3xl);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  --grid-color: rgba(0, 0, 0, 0.04);
  background-image: url('../docs/images/bored_button_feature.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
@media (prefers-color-scheme: dark) {
  .hero__bg { --grid-color: rgba(255, 255, 255, 0.04); }
}
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(250, 250, 250, 0.92) 0%, rgba(250, 250, 250, 0.85) 100%);
  pointer-events: none;
}
@media (prefers-color-scheme: dark) {
  .hero__bg::before {
    background: linear-gradient(180deg, rgba(18, 18, 18, 0.92) 0%, rgba(18, 18, 18, 0.85) 100%);
  }
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 3rem 3rem;
  pointer-events: none;
  opacity: 0.5;
}
.hero__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero__content {
  max-width: 42rem;
  margin-inline: auto;
}
.hero__headline {
  font: var(--text-h1);
  color: var(--color-text);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.02em;
}
.hero__subhead {
  font: var(--text-body);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
}
.hero__cta {
  margin-bottom: var(--space-md);
  display: flex;
  justify-content: center;
}
.hero__trust {
  font: var(--text-small);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   Value block
   ========================================================================== */
.value__body {
  font: var(--text-body);
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 55ch;
}

/* ==========================================================================
   Features grid
   ========================================================================== */
.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
@media (min-width: 640px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 960px) {
  .features__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
  }
}

.card {
  background: var(--color-bg);
  padding: var(--space-lg);
  border-radius: 0.75rem;
  border: 1px solid transparent;
  transition: box-shadow 0.25s var(--ease-out), transform 0.2s var(--ease-out);
}
.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
@media (prefers-color-scheme: dark) {
  .card:hover {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  }
}
.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.card__title {
  font: var(--text-h3);
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}
.card__text {
  font: var(--text-body);
  color: var(--color-text-secondary);
  margin: 0;
  font-size: 0.9375rem;
}

/* Reveal animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(1rem);
  transition: opacity var(--reveal-duration) var(--ease-out), transform var(--reveal-duration) var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   How it works (steps)
   ========================================================================== */
.steps__list {
  list-style: none;
  margin: var(--space-xl) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 40rem;
  margin-inline: auto;
}
.steps__list--compact {
  margin-top: var(--space-lg);
  gap: var(--space-lg);
}
.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}
.step__num {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font: 600 1.125rem/1 var(--font-heading);
  color: var(--color-bg);
  background: var(--color-accent);
  border-radius: 50%;
}
.step__content { flex: 1; }
.step__title {
  font: var(--text-h3);
  color: var(--color-text);
  margin: 0 0 var(--space-xs);
}
.step__text {
  font: var(--text-body);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   Screenshot gallery (infinite scroll)
   ========================================================================== */
.gallery__subtitle {
  text-align: center;
  font: var(--text-body);
  color: var(--color-text-secondary);
  margin: -0.5rem 0 var(--space-xl);
}
.gallery__track {
  overflow: hidden;
  padding-bottom: var(--space-md);
  margin-inline: calc(-1 * var(--container-padding));
  padding-inline: var(--container-padding);
}
.gallery__scroll {
  display: flex;
  gap: var(--space-md);
  width: max-content;
  animation: gallery-scroll 50s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .gallery__scroll {
    animation: none;
  }
}
@keyframes gallery-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}
.gallery__item {
  flex: 0 0 min(280px, 85vw);
  margin: 0;
}
.gallery__img {
  width: 100%;
  height: auto;
  border-radius: 0.75rem;
  object-fit: contain;
  background: var(--color-surface);
  display: block;
}
.gallery__caption {
  margin-top: var(--space-xs);
  font: var(--text-small);
  color: var(--color-text-secondary);
  text-align: center;
}

/* ==========================================================================
   Tech / tables / code
   ========================================================================== */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin-bottom: var(--space-lg);
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 320px;
}
th, td {
  padding: 0.75rem 0.75rem;
  text-align: left;
  font: var(--text-body);
}
thead tr {
  background: var(--color-surface);
}
tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}
@media (prefers-color-scheme: dark) {
  tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
  }
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.9em;
  background: rgba(0, 0, 0, 0.04);
  padding: 0.1em 0.3em;
  border-radius: 0.3rem;
}
@media (prefers-color-scheme: dark) {
  code {
    background: rgba(255, 255, 255, 0.06);
  }
}
.code-block {
  padding: var(--space-md);
  background: var(--color-surface);
  border-radius: 0.75rem;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.875rem;
}
.code-block code {
  background: transparent;
  padding: 0;
}
.subheading {
  font: var(--text-h3);
  color: var(--color-text);
  margin: var(--space-xl) 0 var(--space-sm);
}
.tech__meta {
  font: var(--text-small);
  color: var(--color-text-secondary);
  margin: var(--space-md) 0 0;
}
.tech__note {
  font: var(--text-small);
  color: var(--color-text-secondary);
  margin: var(--space-sm) 0 0;
}
.tech__list {
  margin: var(--space-md) 0 0;
  padding-left: 1.25rem;
  font: var(--text-body);
  color: var(--color-text-secondary);
}
.tech__list li {
  margin-bottom: var(--space-sm);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding-block: var(--space-xl);
  background: var(--color-surface);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}
@media (prefers-color-scheme: dark) {
  .footer {
    border-top-color: rgba(255, 255, 255, 0.08);
  }
}
.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  justify-content: center;
}
.footer__nav a {
  font: var(--text-small);
  color: var(--color-text-secondary);
}
.footer__nav a:hover {
  color: var(--color-text);
}
.footer__credit {
  font: var(--text-small);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ==========================================================================
   Responsive type
   ========================================================================== */
@media (min-width: 640px) {
  :root {
    --text-h1: 700 3rem/1.15 var(--font-heading);
    --text-h2: 600 2rem/1.25 var(--font-heading);
  }
  .hero__headline { max-width: none; }
  .hero__subhead { max-width: 48ch; }
}
@media (min-width: 960px) {
  :root {
    --text-h1: 700 3.5rem/1.15 var(--font-heading);
    --container-padding: 2rem;
  }
}