/* ==========================================================================
   sections — the boot viewport, the deploy stepper, the topology, the models
   ========================================================================== */

/* ---- boot viewport ----------------------------------------------------- */

.boot {
  position: relative;
  min-height: calc(100svh - 52px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--s-8);
  align-items: center;
  padding-block: var(--s-8) var(--s-9);
}

@media (max-width: 1080px) {
  .boot {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    padding-block: var(--s-7) var(--s-8);
    gap: var(--s-7);
  }
}

.boot__left { display: grid; gap: var(--s-5); align-content: center; min-width: 0; }
.boot__term { min-width: 0; }

.wordmark {
  font-family: var(--font-display);
  font-size: var(--t-2xl);
  line-height: 0.88;
  letter-spacing: -0.02em;
  color: var(--txt);
  margin: 0;
  position: relative;
  /* Phosphor persistence: the tight halo is the glass, the wide one is the room. */
  text-shadow:
    0 0 6px rgba(205, 246, 226, 0.35),
    0 0 34px rgba(41, 255, 155, 0.28),
    0 0 90px rgba(41, 255, 155, 0.12);
}

.wordmark__weave {
  color: var(--phos);
  text-shadow:
    0 0 7px rgba(41, 255, 155, 0.65),
    0 0 30px rgba(41, 255, 155, 0.4),
    0 0 80px rgba(41, 255, 155, 0.16);
}


.wordmark[data-glitch="on"]::before,
.wordmark[data-glitch="on"]::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.wordmark[data-glitch="on"]::before {
  color: var(--cyan);
  clip-path: inset(8% 0 62% 0);
  animation: glitch-a 2.6s steps(2) infinite;
  opacity: 0.55;
}

.wordmark[data-glitch="on"]::after {
  color: var(--red);
  clip-path: inset(58% 0 12% 0);
  animation: glitch-b 3.1s steps(2) infinite;
  opacity: 0.45;
}

@keyframes glitch-a {
  0%, 92%, 100% { transform: translate(0, 0); opacity: 0; }
  93%           { transform: translate(-3px, -1px); opacity: 0.55; }
  96%           { transform: translate(2px, 1px); opacity: 0.4; }
}

@keyframes glitch-b {
  0%, 89%, 100% { transform: translate(0, 0); opacity: 0; }
  90%           { transform: translate(3px, 1px); opacity: 0.45; }
  94%           { transform: translate(-2px, -1px); opacity: 0.3; }
}

@media (prefers-reduced-motion: reduce) {
  .wordmark[data-glitch="on"]::before,
  .wordmark[data-glitch="on"]::after { animation: none; opacity: 0; }
}

.boot__thesis {
  font-size: var(--t-md);
  line-height: 1.6;
  color: var(--txt-2);
  max-width: min(56ch, 100%);
}

.boot__thesis b { color: var(--txt); font-weight: 400; }

.boot__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2) var(--s-5);
  font-size: var(--t-sm);
  color: var(--txt-3);
  padding-top: var(--s-2);
}

.boot__facts span { display: inline-flex; align-items: center; gap: var(--s-2); }
.boot__facts b { color: var(--txt-2); font-weight: 400; }

.boot__term { height: min(62vh, 560px); }

@media (max-width: 1080px) {
  .boot__term { height: 380px; }
}

/* ---- deploy stepper ---------------------------------------------------- */

.stepper { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: var(--s-6); }

@media (max-width: 980px) {
  .stepper { grid-template-columns: minmax(0, 1fr); }
}

.steps { display: grid; align-content: start; }

.step {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: var(--s-3);
  padding: var(--s-3) var(--s-3) var(--s-3) 0;
  text-align: left;
  width: 100%;
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition: background var(--dur-fast) var(--ease-out);
}

.step:hover { background: var(--phos-ghost); }

.step__n {
  font-family: var(--font-display);
  font-size: var(--t-xs);
  color: var(--txt-3);
  padding-top: 3px;
  text-align: center;
  border: 1px solid var(--rule);
  height: 22px;
  line-height: 15px;
  transition: all var(--dur-fast) var(--ease-out);
}

.step > span:nth-child(2) { display: block; min-width: 0; }
.step__t { display: block; font-size: var(--t-sm); color: var(--txt-2); line-height: 1.45; }
.step__s { display: block; font-size: var(--t-xs); color: var(--txt-3); margin-top: 2px; }

.step[aria-selected="true"] { background: var(--phos-ghost); }
.step[aria-selected="true"] .step__n {
  color: var(--bg);
  background: var(--phos);
  border-color: var(--phos);
}
.step[aria-selected="true"] .step__t { color: var(--txt); }

.step__bar {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 100%;
  background: var(--phos);
  transform: scaleX(0);
  transform-origin: left center;
}

.step[aria-selected="true"] .step__bar {
  transform: scaleX(1);
  transition: transform 5s linear;
}

.stepper__screen { height: min(58vh, 480px); }

/* ---- topology ---------------------------------------------------------- */

.topo {
  position: relative;
  background: var(--bg-inset);
  border: 1px solid var(--rule);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--rule-hot) transparent;
}

.topo svg { min-width: 940px; }

.topo svg { width: 100%; height: auto; display: block; }

.topo__edge {
  stroke: var(--rule-hot);
  stroke-width: 1;
  fill: none;
}

.topo__beam {
  stroke: var(--phos);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 6 240;
  filter: drop-shadow(0 0 3px rgba(41, 255, 155, 0.8));
  animation: beam 3.4s linear infinite;
}

@keyframes beam {
  from { stroke-dashoffset: 246; }
  to   { stroke-dashoffset: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .topo__beam { animation: none; opacity: 0.4; stroke-dasharray: none; }
}

.topo__box { fill: var(--bg-panel); stroke: var(--rule-bright); stroke-width: 1; }
.topo__box--hot { stroke: var(--phos-dim); }
.topo__t { fill: var(--txt); font-family: var(--font-display); font-size: 12px; }
.topo__t--dim { fill: var(--txt-3); font-size: 10px; letter-spacing: 0.08em; }
.topo__t--acc { fill: var(--phos); }

.topo__node { transition: opacity var(--dur-mid) var(--ease-out); }
.topo__node:hover .topo__box { stroke: var(--phos); }

/* ---- model cards (gitops / secrets / traffic) -------------------------- */

.model { display: grid; gap: var(--s-4); align-content: start; }

.model__title {
  font-family: var(--font-display);
  font-size: var(--t-base);
  color: var(--txt);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.model__title .rule { flex: 1; height: 1px; background: var(--rule); }

.chain { display: grid; gap: 0; }

.chain__node {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: var(--s-3);
  align-items: start;
  padding: var(--s-3) 0;
  position: relative;
}

.chain__node::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 26px;
  bottom: -6px;
  width: 1px;
  background: var(--rule-hot);
}

.chain__node:last-child::before { display: none; }

.chain__dot {
  width: 19px;
  height: 19px;
  border: 1px solid var(--rule-hot);
  display: grid;
  place-items: center;
  background: var(--bg-panel);
  position: relative;
  z-index: 1;
}

.chain__dot i { width: 5px; height: 5px; background: var(--phos-mid); }
.chain__node:hover .chain__dot { border-color: var(--phos); }
.chain__node:hover .chain__dot i { background: var(--phos); }

.chain__node > span:last-child { display: block; min-width: 0; }
.chain__what { display: block; font-size: var(--t-sm); color: var(--txt); }
.chain__how { display: block; font-size: var(--t-xs); color: var(--txt-3); margin-top: 3px; line-height: 1.55; }

/* ---- spec figures ------------------------------------------------------ */

.spec {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  border: 1px solid var(--rule);
  background: var(--rule);
  gap: 1px;
}

.spec__cell {
  background: var(--bg-panel);
  padding: var(--s-4);
  display: grid;
  gap: var(--s-1);
}

.spec__v {
  font-family: var(--font-display);
  font-size: var(--t-lg);
  color: var(--phos);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.spec__k { font-size: var(--t-xs); color: var(--txt-3); letter-spacing: 0.06em; }