/* ==========================================================================
   VENUS — STRATEGIC PROGRAMS PAGE
   Visual language: strategic systems · industrial scale · programs · capability
   development · long-term progression. An editorial hero, a program-architecture
   LAYER STACK (not a card grid), and a progression roadmap. Tokens only.
   ========================================================================== */

/* ---------------------------------------------------------------- Hero ----- */
.prog-hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(110% 120% at 0% 0%, rgba(184,115,51,0.06), transparent 55%),
    var(--bg-page);
  border-bottom: var(--border-hairline);
}
.prog-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image: linear-gradient(90deg, var(--grid-line-light) 1px, transparent 1px);
  background-size: var(--grid-size) 100%;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent);
          mask-image: linear-gradient(180deg, #000, transparent);
}
.prog-hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr; gap: var(--space-12);
  padding-block: clamp(2.5rem, 2rem + 3.5vw, 5rem); align-items: center;
}
@media (min-width: 992px) { .prog-hero__grid { grid-template-columns: 1.4fr 0.6fr; gap: var(--space-16); } }
.prog-hero__kicker {
  display: inline-flex; align-items: baseline; gap: var(--space-3);
  font-family: var(--font-heading); font-weight: var(--fw-semibold);
  font-size: var(--fs-small); letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-accent-strong); margin: 0 0 var(--space-4);
}
.prog-hero__kicker .idx { color: var(--steel-500); padding-right: var(--space-3); border-right: 1px solid var(--color-border); }
.prog-hero__title {
  font-weight: var(--fw-bold); letter-spacing: -0.025em; line-height: 1.1;
  font-size: clamp(2rem, 1.35rem + 3vw, 3.4rem); max-width: 16ch;
  margin: 0 0 var(--space-6); text-wrap: balance;
}
.prog-hero__lede { font-size: clamp(1.0625rem, 1rem + 0.45vw, 1.25rem); line-height: 1.55; color: var(--color-text-muted); max-width: 54ch; margin: 0; }

/* Strategic index — a vertical preview of the program layers, as a system map. */
.prog-index { position: relative; border: var(--border-hairline); border-radius: var(--radius-md); background: var(--bg-surface); overflow: hidden; }
.prog-index__item { position: relative; }
.prog-index__no { position: relative; z-index: 1; }
/* connecting rail through the index numbers */
.prog-index__item:not(:last-child)::before {
  content: ""; position: absolute; left: calc(var(--space-5) + 0.45rem); top: 50%; bottom: -50%; width: 2px;
  background: var(--color-accent); opacity: 0.35; z-index: 0;
}
.prog-index__bar { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel-500); padding: var(--space-3) var(--space-5); border-bottom: var(--border-hairline); }
.prog-index__item { display: grid; grid-template-columns: auto 1fr; gap: var(--space-4); align-items: center; padding: var(--space-4) var(--space-5); border-bottom: var(--border-hairline); }
.prog-index__item:last-child { border-bottom: 0; }
.prog-index__no { font-family: var(--font-mono); font-size: var(--fs-small); color: var(--color-accent-strong); }
.prog-index__label { font-weight: var(--fw-medium); }

/* ----------------------------------------------- Editorial statement ------- */
.prog-statement {
  font-family: var(--font-heading); font-weight: var(--fw-semibold);
  font-size: clamp(1.5rem, 1.1rem + 1.9vw, 2.5rem); line-height: 1.22;
  letter-spacing: -0.02em; color: var(--color-text); max-width: 26ch; margin: 0 0 var(--space-6);
}
.prog-statement .accent { color: var(--color-accent-strong); }

/* --------------------------------------------------- Program layer stack ----
   The four areas of focus as a connected strategic architecture — a left spine
   with index rails, each layer a full-width band (not a card in a grid). */
.layer-stack { position: relative; display: grid; gap: var(--space-4); }
/* continuous spine linking the numbered rails into one architecture */
.layer-stack::before {
  content: ""; position: absolute; left: 31px; top: 24px; bottom: 24px; width: 2px;
  background: var(--color-accent); opacity: 0.22; z-index: 0;
}
.layer {
  position: relative; display: grid; grid-template-columns: 1fr; gap: var(--space-2);
  padding: var(--space-6) var(--space-6) var(--space-6) calc(var(--space-16) + var(--space-2));
  background: var(--bg-page); border: var(--border-hairline); border-radius: var(--radius-md);
  transition: transform var(--dur-standard) var(--ease-out), box-shadow var(--dur-standard) var(--ease-out), border-color var(--dur-standard) var(--ease-out);
}
.layer:hover { transform: translateX(4px); box-shadow: var(--shadow-md); border-color: var(--copper-500); }
.layer__no {
  position: absolute; left: 0; top: 0; bottom: 0; width: var(--space-16);
  display: grid; place-items: center; font-family: var(--font-mono); font-weight: var(--fw-bold);
  font-size: 1.25rem; color: var(--color-accent-strong);
  background: linear-gradient(180deg, rgba(184,115,51,0.08), transparent);
  border-right: 2px solid var(--color-accent); border-radius: var(--radius-md) 0 0 var(--radius-md);
}
.layer__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; }
.layer__title { font-size: var(--fs-h3); margin: 0; }
.layer__body { margin: 0; color: var(--color-text-muted); max-width: 68ch; }
@media (min-width: 768px) {
  .layer { grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr); gap: var(--space-8); align-items: center; }
  .layer__head { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
}

/* ----------------------------------------------------- Progression roadmap -
   A horizontal axis showing long-term progression across programs. */
.roadmap { position: relative; display: grid; grid-template-columns: 1fr; gap: var(--space-6); margin-top: var(--space-4); }
@media (min-width: 768px) { .roadmap { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-4); } }
.roadmap::before {
  content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 2px;
  background: linear-gradient(90deg, var(--copper-600), var(--copper-300)); display: none;
}
@media (min-width: 768px) { .roadmap::before { display: block; } }
.roadmap__pt { position: relative; padding-top: var(--space-8); text-align: center; }
.roadmap__pt::before {
  content: ""; position: absolute; top: 3px; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px; border-radius: 50%; background: var(--bg-page); border: 3px solid var(--color-accent);
}
.roadmap__phase { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel-500); margin: 0 0 var(--space-1); }
.roadmap__label { font-weight: var(--fw-semibold); margin: 0 0 var(--space-1); }
.roadmap__note { font-size: var(--fs-small); color: var(--color-text-muted); margin: 0; }

.data-label { font-family: var(--font-mono); font-size: var(--fs-small); letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent-strong); }