/* ============================================================
   JUPITER · Welcome splash (pre-authentication)
   Standalone screen layered over the jupiter.css design tokens:
   parallax starfield (canvas), nebula wash, perspective grid
   horizon, animated Jupiter with drifting storm bands, orbiting
   moons, and the sign-in call to action.
   ============================================================ */

body.welcome {
  overflow-x: hidden;
  background:
    radial-gradient(1200px 800px at 78% 30%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 60%),
    radial-gradient(900px 700px at 12% 85%, color-mix(in srgb, var(--accent2) 6%, transparent), transparent 55%),
    linear-gradient(180deg, var(--bg1), var(--bg0) 55%);
  background-attachment: fixed;
}

/* ---------- backdrop layers ---------- */
#w-stars {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

.w-nebula {
  position: fixed; inset: -12%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(46% 38% at 70% 26%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%),
    radial-gradient(40% 34% at 22% 74%, color-mix(in srgb, var(--accent2) 8%, transparent), transparent 70%);
  filter: blur(30px);
  animation: w-nebula 46s ease-in-out infinite alternate;
  transform: translate3d(calc(var(--px, 0) * -14px), calc(var(--py, 0) * -10px), 0);
}
@keyframes w-nebula {
  from { opacity: 0.7; }
  50%  { opacity: 1; }
  to   { opacity: 0.8; }
}

.w-horizon {
  position: fixed; left: -20vw; right: -20vw; bottom: -8vh;
  height: 46vh;
  z-index: 1;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, var(--grid-color) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--grid-color) 0 1px, transparent 1px 48px);
  transform: perspective(540px) rotateX(62deg);
  transform-origin: 50% 100%;
  -webkit-mask-image: linear-gradient(transparent, #000 60%);
  mask-image: linear-gradient(transparent, #000 60%);
  opacity: 0.9;
}

/* ---------- stage ---------- */
.w-stage {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  min-height: 100svh;
  max-width: 1500px;
  margin: 0 auto;
  padding: 48px clamp(20px, 5vw, 72px) 110px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(20px, 4vw, 60px);
}

/* ---------- intro column ---------- */
.w-intro { animation: w-rise 0.9s ease both; }
@keyframes w-rise {
  from { opacity: 0; transform: translateY(22px); }
}

.w-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent2);
  margin-bottom: 14px;
}

.w-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3.1rem, 8vw, 6.2rem);
  line-height: 1.02;
  letter-spacing: 0.1em;
  margin: 0 0 10px;
  background: linear-gradient(100deg,
    var(--text) 0%, var(--accent) 32%, var(--accent2) 52%, var(--text) 74%, var(--accent) 100%);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: w-sheen 8s ease-in-out infinite;
  text-shadow: 0 0 42px color-mix(in srgb, var(--accent) 22%, transparent);
}
@keyframes w-sheen {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.w-tagline {
  font-size: clamp(1.05rem, 2.1vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 26px;
  min-height: 1.55em; /* reserve the line while the typing effect runs */
}
.w-tagline.typing::after {
  content: "▍";
  color: var(--accent2);
  animation: w-blink 0.9s steps(1) infinite;
}

/* boot sequence */
.w-boot {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}
.w-boot li {
  display: flex; align-items: center; gap: 11px;
  color: var(--text-dim);
  opacity: 0;
  transform: translateX(-14px);
  animation: w-boot-in 0.45s ease forwards;
  animation-delay: calc(0.8s + var(--i) * 0.3s);
}
.w-boot li i {
  width: 7px; height: 7px; border-radius: 50%; flex: none;
  background: var(--accent);
  box-shadow: 0 0 9px var(--accent);
}
.w-boot li span {
  flex: 1;
  overflow: hidden; white-space: nowrap;
}
.w-boot li span::after { content: " ······························"; opacity: 0.35; }
.w-boot li b { font-weight: 600; color: var(--good); }
@keyframes w-boot-in {
  to { opacity: 1; transform: translateX(0); }
}

/* call to action */
.w-cta {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 17px 52px;
  border-radius: 15px;
  text-decoration: none;
  text-align: center;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, var(--accent2)));
  color: var(--bg0);
  border: 1px solid color-mix(in srgb, var(--accent) 70%, transparent);
  box-shadow: 0 10px 44px var(--glow);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  animation: w-cta-pulse 3.2s ease-in-out infinite;
}
.w-cta:hover { transform: translateY(-2px); box-shadow: 0 14px 56px var(--glow); text-decoration: none; }
.w-cta:active { transform: translateY(0); }
.w-cta::after {
  content: "";
  position: absolute; top: 0; bottom: 0; width: 60%;
  left: -80%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-18deg);
  animation: w-shine 4.5s ease-in-out infinite;
}
.w-cta-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.w-cta-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.78;
}
@keyframes w-cta-pulse {
  0%, 100% { box-shadow: 0 10px 44px var(--glow); }
  50%      { box-shadow: 0 10px 60px color-mix(in srgb, var(--accent) 48%, transparent); }
}
@keyframes w-shine {
  0%       { left: -80%; }
  45%, 100% { left: 130%; }
}

.w-hint {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

/* ---------- planetarium ---------- */
.w-planetarium {
  position: relative;
  aspect-ratio: 1;
  width: 100%;
  max-width: min(44vw, 680px);
  margin-inline: auto;
  transform: translate3d(calc(var(--px, 0) * 16px), calc(var(--py, 0) * 12px), 0);
  animation: w-rise 1.1s ease both;
}

.w-glow {
  position: absolute; inset: 14%;
  border-radius: 50%;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--accent) 26%, transparent) 0%,
    color-mix(in srgb, var(--accent) 10%, transparent) 45%,
    transparent 70%);
  filter: blur(18px);
  animation: w-glow-breathe 7s ease-in-out infinite;
}
@keyframes w-glow-breathe {
  0%, 100% { opacity: 0.75; }
  50%      { opacity: 1; }
}

.w-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.w-ring-a {
  inset: 5%;
  border: 1px dashed color-mix(in srgb, var(--accent) 38%, transparent);
  animation: w-spin 90s linear infinite;
}
.w-ring-b {
  inset: -1.5%;
  border: 1px dashed color-mix(in srgb, var(--accent2) 26%, transparent);
  animation: w-spin 140s linear infinite reverse;
}
.w-ticks {
  position: absolute; inset: 1.5%;
  border-radius: 50%;
  background: repeating-conic-gradient(
    color-mix(in srgb, var(--accent) 45%, transparent) 0deg 0.6deg,
    transparent 0.6deg 6deg);
  -webkit-mask: radial-gradient(closest-side, transparent 96.5%, #000 97%);
  mask: radial-gradient(closest-side, transparent 96.5%, #000 97%);
  opacity: 0.5;
  animation: w-spin 200s linear infinite;
}
@keyframes w-spin { to { transform: rotate(360deg); } }

/* moons orbit by rotating a full-size wrapper with the moon pinned to its left edge */
.w-orbit {
  position: absolute;
  border-radius: 50%;
  animation: w-spin var(--d, 40s) linear infinite;
  pointer-events: none;
}
.w-orbit-1 { inset: 3%;  --d: 34s; }
.w-orbit-2 { inset: -3%; --d: 58s; animation-direction: reverse; }
.w-orbit-3 { inset: 8%;  --d: 84s; }
.w-moon {
  position: absolute;
  top: 50%; left: 0;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}
.w-m1 {
  width: 13px; height: 13px;
  background: radial-gradient(circle at 32% 30%, #ffffff, var(--accent2));
  box-shadow: 0 0 12px var(--accent2);
}
.w-m2 {
  width: 9px; height: 9px;
  background: radial-gradient(circle at 32% 30%, #ffffff, var(--accent));
  box-shadow: 0 0 10px var(--accent);
}
.w-m3 {
  width: 6px; height: 6px;
  background: radial-gradient(circle at 32% 30%, #ffffff, var(--text-dim));
  box-shadow: 0 0 8px var(--text-dim);
}

.w-planet {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  filter: drop-shadow(0 0 46px color-mix(in srgb, var(--accent) 26%, transparent));
  animation: w-float 9s ease-in-out infinite;
}
@keyframes w-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

.w-atmo {
  fill: none;
  stroke: color-mix(in srgb, var(--accent2) 35%, transparent);
  stroke-width: 5;
  filter: blur(6px);
}
.w-rim {
  stroke: color-mix(in srgb, var(--accent) 55%, transparent);
  stroke-width: 1.5;
  opacity: 0.85;
}
.w-weather > g, .w-weather > use { animation: w-drift 80s linear infinite; }
@keyframes w-drift { to { transform: translateX(-440px); } }
.w-spot {
  transform-box: fill-box;
  transform-origin: center;
  animation: w-spot-pulse 6s ease-in-out infinite;
}
@keyframes w-spot-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

/* ---------- access sequence (live terminal on the welcome screen) ---------- */
.w-term {
  position: relative;
  display: flex; flex-direction: column;
  background: color-mix(in srgb, var(--bg0) 78%, transparent);
  border: 1px solid color-mix(in srgb, var(--good) 38%, transparent);
  border-radius: var(--radius);
  box-shadow:
    0 0 50px color-mix(in srgb, var(--good) 12%, transparent),
    inset 0 0 50px color-mix(in srgb, var(--good) 4%, transparent),
    var(--shadow);
  overflow: hidden;
}
.w-term-inline {
  width: 100%;
  max-width: 480px;
  max-height: clamp(180px, 32vh, 252px);
  margin: 6px 0 24px;
}
/* CRT sweep */
.w-term::after {
  content: "";
  position: absolute; left: 0; right: 0; top: -40%;
  height: 36%;
  background: linear-gradient(180deg, transparent,
    color-mix(in srgb, var(--good) 5%, transparent), transparent);
  animation: w-sweep 3.2s linear infinite;
  pointer-events: none;
}
@keyframes w-sweep { to { top: 110%; } }

.w-term-head {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px;
  border-bottom: 1px solid color-mix(in srgb, var(--good) 22%, transparent);
}
.w-term-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: color-mix(in srgb, var(--good) 40%, transparent);
}
.w-term-dot:first-child { background: color-mix(in srgb, var(--good) 80%, transparent); box-shadow: 0 0 7px var(--good); }
.w-term-title {
  margin-left: auto;
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.18em; text-transform: lowercase;
  color: color-mix(in srgb, var(--good) 70%, var(--text-dim));
}

.w-term-body {
  padding: 14px 18px 16px;
  overflow-y: auto;
  text-align: left;
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 1.7vw, 0.82rem);
  line-height: 1.7;
}
.w-line { white-space: pre-wrap; word-break: break-word; min-height: 1.8em; }
.w-line .hd {
  color: var(--good);
  font-weight: 600; letter-spacing: 0.14em;
  text-shadow: 0 0 12px color-mix(in srgb, var(--good) 55%, transparent);
}
.w-line .k { color: var(--text-dim); }
.w-line .v {
  color: var(--accent2);
  text-shadow: 0 0 9px color-mix(in srgb, var(--accent2) 40%, transparent);
}
.w-line .ok { color: var(--good); text-shadow: 0 0 9px color-mix(in srgb, var(--good) 50%, transparent); }
.w-line .warn { color: var(--warn); }
.w-line .dim { color: color-mix(in srgb, var(--text-dim) 70%, transparent); }
.w-line .typing::after {
  content: "▍";
  color: var(--good);
  animation: w-blink 0.7s steps(1) infinite;
}
.w-access {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3.4vw, 1.5rem);
  font-weight: 700; letter-spacing: 0.3em;
  color: var(--good);
  text-shadow: 0 0 22px color-mix(in srgb, var(--good) 65%, transparent);
  animation: w-access-flicker 90ms steps(2) 4;
}
@keyframes w-access-flicker { 50% { opacity: 0.55; } }

.w-line .w-hold::after {
  content: " ▮";
  color: var(--good);
  animation: w-blink 0.8s steps(1) infinite;
}
.w-line .w-prompt {
  color: var(--good);
  text-shadow: 0 0 10px color-mix(in srgb, var(--good) 50%, transparent);
}
.w-line .w-prompt::after {
  content: "▌";
  margin-left: 3px;
  animation: w-blink 0.8s steps(1) infinite;
}

/* ---------- footer ---------- */
.w-foot {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px clamp(20px, 5vw, 72px) calc(14px + env(safe-area-inset-bottom));
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg0) 55%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.w-blink { color: var(--accent); animation: w-blink 1.1s steps(1) infinite; }
@keyframes w-blink { 50% { opacity: 0; } }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .w-stage {
    grid-template-columns: 1fr;
    align-content: center;
    justify-items: center;
    text-align: center;
    padding-top: 28px;
    gap: 8px;
  }
  .w-planetarium {
    order: -1;
    max-width: min(74vw, 380px);
  }
  .w-intro { display: flex; flex-direction: column; align-items: center; }
  .w-boot { width: 100%; max-width: 340px; text-align: left; }
}

@media (max-width: 480px) {
  .w-foot span:first-child { display: none; }
  .w-boot { font-size: 0.72rem; }
}

/* Short viewports (landscape phones): go side-by-side with a small planet and drop
   the boot list so the sign-in button stays on screen without scrolling. Placed after
   the width breakpoints so it wins when both match. */
@media (max-height: 500px) {
  .w-stage {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    justify-items: stretch;
    text-align: left;
    align-items: center;
    gap: 24px;
    padding-top: 18px;
    padding-bottom: 78px;
  }
  .w-intro { display: block; }
  .w-planetarium { order: 0; max-width: min(52vh, 300px); }
  .w-title { font-size: clamp(2rem, 5vw, 2.8rem); }
  .w-tagline { margin-bottom: 14px; }
  .w-boot { display: none; }
  .w-hint { margin-top: 10px; }
}

/* jupiter.css already zeroes animation durations under prefers-reduced-motion (but not
   delays), so also skip the staggered boot reveal and pin the parallax layers still. */
@media (prefers-reduced-motion: reduce) {
  .w-nebula, .w-planetarium { transform: none; }
  .w-boot li { animation-delay: 0s; opacity: 1; transform: none; }
  .w-blink, .w-tagline.typing::after { animation: none; }
}