/* Umbrella guide — light, full-bleed art, scroll reveals, Mac Terminal */

:root {
  --white: #fafafa;
  --white-solid: #ffffff;
  --text: #1a1a1a;
  --text-soft: #5c5c5c;
  --border: #e8e8e8;
  --accent: #0d6b5c;
  --font-sans: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Menlo", Monaco, Consolas, monospace;
  --reveal-duration: 0.75s;
  --reveal-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .typing-caret {
    animation: none !important;
    border-right: none !important;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white-solid);
}

/* Full-screen looping video + readability scrim */
.bg-stack {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: #e8eaed;
}

.bg-video {
  position: absolute;
  left: 50%;
  top: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
}

/* Decorative muted background: hide iOS Safari’s inline play overlay (no controls on element). */
.bg-video::-webkit-media-controls-panel,
.bg-video::-webkit-media-controls-start-playback-button {
  display: none !important;
}

/* Light wash so type stays readable over video */
.bg-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.72) 0%,
      rgba(255, 255, 255, 0.88) 35%,
      rgba(255, 255, 255, 0.92) 100%
    ),
    radial-gradient(
      ellipse 100% 80% at 50% 40%,
      rgba(255, 255, 255, 0.55) 0%,
      rgba(255, 255, 255, 0.15) 65%,
      transparent 100%
    );
}

@media (prefers-reduced-motion: reduce) {
  .bg-video {
    display: none;
  }
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--text);
  color: var(--white-solid);
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 6px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  position: fixed;
}

.page {
  position: relative;
  z-index: 1;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity var(--reveal-duration) var(--reveal-ease),
    transform var(--reveal-duration) var(--reveal-ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Stagger children (optional) */
.reveal-stagger.is-visible .reveal-item:nth-child(1) {
  transition-delay: 0ms;
}
.reveal-stagger.is-visible .reveal-item {
  opacity: 1;
  transform: none;
}

.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.65s var(--reveal-ease),
    transform 0.65s var(--reveal-ease);
}

.reveal-stagger.is-visible .reveal-item:nth-child(1) {
  transition-delay: 0.05s;
}
.reveal-stagger.is-visible .reveal-item:nth-child(2) {
  transition-delay: 0.15s;
}
.reveal-stagger.is-visible .reveal-item:nth-child(3) {
  transition-delay: 0.25s;
}

/* Top nav */
.nav-min {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1rem;
  padding: 1.25rem 1.5rem 0;
  font-size: 0.8rem;
}

.nav-min a {
  color: var(--text-soft);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-min a:hover {
  color: var(--accent);
}

/* Hero */
.hero {
  text-align: center;
  padding: 2.5rem 1.5rem 3rem;
  max-width: 40rem;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin: 0 0 0.75rem;
  color: var(--text);
}

.hero .tagline {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text-soft);
  font-weight: 400;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 0.85rem;
  justify-content: center;
  align-items: center;
  margin-top: 1.75rem;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: #24292f;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  transition:
    background 0.15s ease,
    transform 0.15s ease;
}

.btn-github:hover {
  background: #1a1e22;
  color: #fff;
  transform: translateY(-1px);
}

.btn-github:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-github__icon {
  flex-shrink: 0;
}

.btn-npm {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(13, 107, 92, 0.1);
  border: 1px solid rgba(13, 107, 92, 0.25);
  border-radius: 8px;
  text-decoration: none;
  transition:
    background 0.15s ease,
    border-color 0.15s ease;
}

.btn-npm:hover {
  background: rgba(13, 107, 92, 0.16);
  border-color: rgba(13, 107, 92, 0.4);
  color: var(--accent);
}

.btn-npm:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Content sections */
main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

section {
  margin-bottom: 3.5rem;
  scroll-margin-top: 1.25rem;
}

section h2 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin: 0 0 1rem;
}

section h2.subhead {
  margin-top: 2rem;
}

section p,
section li {
  color: var(--text);
}

section p {
  margin: 0 0 1rem;
}

section ul,
section ol {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--text-soft);
}

section li {
  margin-bottom: 0.4rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--text);
}

/* Inline code */
code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(0, 0, 0, 0.06);
  padding: 0.12em 0.38em;
  border-radius: 4px;
}

/* Light cards for tables */
.card {
  background: var(--white-solid);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.2rem 0;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.04);
}

table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

table.spec th,
table.spec td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

table.spec tr:last-child td {
  border-bottom: none;
}

table.spec th {
  font-weight: 600;
  color: var(--text-soft);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(0, 0, 0, 0.02);
}

table.spec td {
  color: var(--text);
  vertical-align: top;
}
table.spec td:first-child {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  white-space: normal;
  word-break: break-word;
  min-width: 7rem;
}

/* —— macOS-style Terminal (dark, like MacBook Terminal.app) —— */
.mac-terminal {
  margin: 1.25rem 0;
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.07),
    0 18px 48px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.mac-terminal__toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: linear-gradient(180deg, #3d3d3d 0%, #323232 100%);
  border-bottom: 1px solid #1a1a1a;
}

.mac-terminal__lights {
  display: flex;
  gap: 7px;
}

.mac-terminal__lights span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.2);
}
.mac-terminal__lights .close {
  background: #ff5f56;
}
.mac-terminal__lights .min {
  background: #ffbd2e;
}
.mac-terminal__lights .max {
  background: #27c93f;
}

.mac-terminal__title {
  flex: 1;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: #b4b4b4;
  letter-spacing: -0.01em;
}

.mac-terminal__body {
  background: #0d0d0d;
  color: #f0f0f0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.65;
}

/* Multi-line examples: monospace columns stay aligned (no mid-line wrap) */
.mac-terminal__body .term-screen {
  display: block;
  margin: 0;
  padding: 1rem 1.1rem 1.15rem;
  font-family: inherit;
  font-size: inherit;
  line-height: 1.7;
  white-space: pre;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  color: inherit;
  tab-size: 4;
}

.mac-terminal__body .comment {
  color: #6b6b6b;
}

.mac-terminal__body .cmd {
  color: #7ee787;
}

.mac-terminal__body .prompt {
  color: #58a6ff;
  user-select: none;
}

/* Hero typing row: prompt + animated command stay on one baseline */
.mac-terminal__body--hero {
  padding: 1rem 1.1rem 1.15rem;
  white-space: normal;
  word-break: normal;
}

.mac-terminal__body--hero .term-comment {
  display: block;
  color: #6b6b6b;
  margin-bottom: 0.5rem;
}

.mac-terminal__body--hero .term-row {
  display: block;
  white-space: nowrap;
  overflow-x: auto;
  max-width: 100%;
}

.mac-terminal__caption {
  font-size: 0.75rem;
  color: var(--text-soft);
  margin: -0.35rem 0 1rem;
}

.mac-terminal__caption--spaced {
  margin-top: 1rem;
}

.section-lead--compact {
  font-size: 1rem;
  margin-bottom: 1rem;
}

.typing-caret {
  border-right: 2px solid #7ee787;
  animation: blinkCaret 1s step-end infinite;
}

@keyframes blinkCaret {
  50% {
    border-color: transparent;
  }
}

/* Badges */
.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  margin-right: 0.35rem;
}

.badge-live {
  background: rgba(13, 107, 92, 0.12);
  color: var(--accent);
}

.badge-sim {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-soft);
}

footer.site-footer {
  text-align: center;
  padding: 2rem 1.5rem 3rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}

footer.site-footer a {
  color: var(--accent);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
}

.site-footer__sep {
  color: var(--border);
  user-select: none;
}

.site-footer__gh {
  color: #24292f;
  font-weight: 600;
}

.site-footer__gh:hover {
  color: #1a1e22;
}