/* ── PROOF OF CONCEPT PAGE ───────────────────────────────── */

/* -- Page canvas: solid dark base stays dominant; brand-color radial
   glows layered underneath as an accent portion (not a full tint),
   anchored to top/mid/bottom of the whole document so the wash reads
   across the full scroll instead of only behind one section. -- */
body.page-poc {
  background:
    radial-gradient(ellipse 900px 600px at 6% 0%, rgba(89,28,83,0.22), transparent 60%),
    radial-gradient(ellipse 900px 700px at 100% 42%, rgba(195,34,31,0.16), transparent 55%),
    radial-gradient(ellipse 800px 600px at 8% 100%, rgba(89,28,83,0.16), transparent 55%),
    var(--clr-dark);
}
:root[data-theme="light"] body.page-poc {
  background:
    radial-gradient(ellipse 900px 600px at 6% 0%, rgba(89,28,83,0.13), transparent 60%),
    radial-gradient(ellipse 900px 700px at 100% 42%, rgba(195,34,31,0.10), transparent 55%),
    radial-gradient(ellipse 800px 600px at 8% 100%, rgba(89,28,83,0.10), transparent 55%),
    var(--clr-dark);
}

/* -- Header/hero background -- */
#poc-overview {
  position: relative;
  overflow: hidden;
}
#poc-overview > .container {
  position: relative;
  z-index: 2;
}
/* Global .section-header p max-width (560px) wraps this longer intro to
   3 lines; widen just here so it sits on 2 without changing the copy. */
#poc-overview .section-header p {
  max-width: 900px;
}
.poc-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../../Resources/Images/proof_of_concept_hero_background.jpg');
  background-size: cover;
  background-position: center 0%;
  animation: pocBgDrift 22s ease-in-out infinite alternate;
}
.poc-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,16,0.92) 0%,
    rgba(10,10,16,0.86) 36%,
    rgba(10,10,16,0.5) 50%,
    rgba(10,10,16,0.48) 62%,
    rgba(10,10,16,0.88) 80%,
    var(--clr-dark) 100%
  );
  pointer-events: none;
}
@keyframes pocBgDrift {
  0%   { transform: scale(1.06) translate(0, 0); }
  100% { transform: scale(1.1) translate(-1.2%, -0.8%); }
}

/* Light theme: swap the dark scrim for a light one so the (theme-aware,
   now-dark) heading/body text stays readable against the photo, and the
   fade-out matches the light page background instead of turning muddy. */
:root[data-theme="light"] .poc-hero-bg {
  filter: saturate(0.85) brightness(1.1);
}
:root[data-theme="light"] .poc-hero-overlay {
  background: linear-gradient(
    to bottom,
    rgba(255,255,255,0.94) 0%,
    rgba(255,255,255,0.88) 36%,
    rgba(255,255,255,0.6) 50%,
    rgba(255,255,255,0.55) 62%,
    rgba(255,255,255,0.92) 80%,
    var(--clr-dark) 100%
  );
}

/* -- Overview callout -- */
.poc-overview-callout {
  max-width: 760px;
  margin: -1.5rem auto 0;
  padding: 2rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-left: 4px solid var(--clr-red);
  border-radius: var(--radius-md);
  text-align: left;
}
.poc-overview-callout p {
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}

/* -- Funding goal -- */
#poc-funding-goal {
  background:
    radial-gradient(ellipse 700px 500px at 92% 0%, rgba(195,34,31,0.10), transparent 55%),
    radial-gradient(ellipse 700px 500px at 4% 100%, rgba(89,28,83,0.12), transparent 55%),
    var(--clr-dark-2);
}
:root[data-theme="light"] #poc-funding-goal {
  background:
    radial-gradient(ellipse 700px 500px at 92% 0%, rgba(195,34,31,0.08), transparent 55%),
    radial-gradient(ellipse 700px 500px at 4% 100%, rgba(89,28,83,0.09), transparent 55%),
    var(--clr-dark-2);
}
.poc-goal-figure {
  text-align: center;
  margin-bottom: 4rem;
}
.poc-goal-number {
  font-family: var(--font-title);
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  background-image: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.poc-goal-label {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}
.poc-goal-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.poc-goal-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition);
}
.poc-goal-card:hover {
  transform: translateY(-6px);
  border-color: rgba(195,34,31,0.35);
  box-shadow: var(--shadow-glow-red);
}
.poc-goal-card .poc-goal-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-red);
  margin-bottom: 0.75rem;
}
.poc-goal-card h4 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--clr-white);
  margin-bottom: 0.6rem;
}
.poc-goal-card p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* -- Product spotlight (concept render + supporting copy) -- */
.poc-spotlight-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: center;
}
.poc-spotlight-media {
  position: relative;
  max-width: 360px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--clr-border);
}
.poc-spotlight-media img {
  width: 100%;
  display: block;
  border-radius: var(--radius-xl);
  transition: transform 0.6s ease;
}
.poc-spotlight-media:hover img { transform: scale(1.04); }
.poc-spotlight-glow {
  position: absolute;
  inset: -20px;
  background: var(--grad-glow-red);
  pointer-events: none;
  z-index: -1;
}
.poc-spotlight-text h3 {
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--clr-white);
  line-height: 1.2;
  margin: 0.75rem 0 1rem;
}
.poc-spotlight-text p {
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* -- Field-test visual break -- */
.poc-field-media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  max-height: 420px;
}
.poc-field-media img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
}
.poc-field-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.5rem 2rem;
  background: linear-gradient(to top, rgba(10,10,16,0.85), transparent);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 500;
}

/* -- Use of funds grid (reuses .use-case-card look via UseCases css) -- */
.poc-funds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

/* -- 16-week timeline (reuses .step-card/.step-number via HowItWorks css) -- */
.poc-timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  margin-top: 4rem;
}
.poc-timeline-grid::before {
  content: '';
  position: absolute;
  top: 60px;
  left: calc(12.5% + 24px);
  right: calc(12.5% + 24px);
  height: 2px;
  background: var(--grad-brand);
  z-index: 0;
}
.poc-phase-weeks {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-red);
  margin-bottom: 0.5rem;
}

/* -- Success criteria section (faded background video) -- */
#poc-success {
  position: relative;
  overflow: hidden;
}
.poc-success-bg-video-wrapper {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}
.poc-success-bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.4;
}
:root[data-theme="light"] .poc-success-bg-video {
  opacity: 0.35;
  filter: saturate(0.9) brightness(0.9);
}
#poc-success::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    var(--clr-dark) 0%,
    rgba(10,10,16,0.25) 50%,
    var(--clr-dark) 100%
  );
  z-index: 0;
}
#poc-success > .container {
  position: relative;
  z-index: 1;
}
:root[data-theme="light"] #poc-success::after {
  background: linear-gradient(
    to bottom,
    var(--clr-dark) 0%,
    rgba(255,255,255,0.3) 50%,
    var(--clr-dark) 100%
  );
}

/* -- Success criteria checklist -- */
.poc-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.poc-check-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: var(--transition);
}
.poc-check-item:hover {
  border-color: rgba(195,34,31,0.3);
  transform: translateX(4px);
}
.poc-check-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(39,174,96,0.12);
  border: 1px solid rgba(39,174,96,0.35);
  color: #27ae60;
  display: flex;
  align-items: center;
  justify-content: center;
}
.poc-check-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--clr-text);
  line-height: 1.6;
}

/* -- Stage-gate roadmap -- */
#poc-roadmap {
  background:
    radial-gradient(ellipse 700px 500px at 4% 0%, rgba(89,28,83,0.12), transparent 55%),
    radial-gradient(ellipse 700px 500px at 96% 100%, rgba(195,34,31,0.10), transparent 55%),
    var(--clr-dark-2);
}
:root[data-theme="light"] #poc-roadmap {
  background:
    radial-gradient(ellipse 700px 500px at 4% 0%, rgba(89,28,83,0.09), transparent 55%),
    radial-gradient(ellipse 700px 500px at 96% 100%, rgba(195,34,31,0.08), transparent 55%),
    var(--clr-dark-2);
}
.poc-stage-gate {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
  margin-top: 3rem;
}
.poc-stage-gate::before {
  content: '';
  position: absolute;
  top: 44px;
  left: calc(16.67% + 30px);
  right: calc(16.67% + 30px);
  height: 2px;
  background: var(--clr-border);
  z-index: 0;
}
.poc-gate-item {
  position: relative;
  z-index: 1;
  text-align: center;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.75rem 2rem;
}
.poc-gate-dot {
  width: 88px; height: 88px;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  background: var(--clr-dark-3);
  border: 2px solid var(--clr-border);
  color: var(--clr-text-muted);
}
.poc-gate-item.is-current {
  border-color: rgba(195,34,31,0.4);
  box-shadow: var(--shadow-glow-red);
}
.poc-gate-item.is-current .poc-gate-dot {
  background: var(--grad-brand);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 30px rgba(195,34,31,0.4);
}
.poc-gate-status {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  color: var(--clr-text-muted);
}
.poc-gate-item.is-current .poc-gate-status { color: var(--clr-red); }
.poc-gate-item h4 {
  font-family: var(--font-title);
  font-size: 1.05rem;
  color: var(--clr-white);
  margin-bottom: 0.6rem;
}
.poc-gate-item p {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}
.poc-seed-strategy {
  max-width: 760px;
  margin: 3rem auto 0;
  text-align: center;
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* -- 2026-2030 strategic roadmap -- */
.poc-year-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
}
.poc-year-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: 3px solid var(--clr-plum);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.25rem;
  transition: var(--transition);
}
.poc-year-card:nth-child(1) { border-top-color: var(--clr-red); }
.poc-year-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-plum);
}
.poc-year-number {
  font-family: var(--font-title);
  font-size: 1.4rem;
  color: var(--clr-white);
  margin-bottom: 0.6rem;
}
.poc-year-card p {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin: 0;
}
.poc-roadmap-note {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.78rem;
  color: rgba(144,144,168,0.7);
  font-style: italic;
}

/* -- Funding progress / thermometer -- */
#poc-progress {
  background:
    radial-gradient(ellipse 800px 500px at 50% 0%, rgba(195,34,31,0.10), transparent 60%),
    radial-gradient(ellipse 800px 500px at 50% 100%, rgba(89,28,83,0.10), transparent 60%),
    var(--clr-dark-2);
}
:root[data-theme="light"] #poc-progress {
  background:
    radial-gradient(ellipse 800px 500px at 50% 0%, rgba(195,34,31,0.08), transparent 60%),
    radial-gradient(ellipse 800px 500px at 50% 100%, rgba(89,28,83,0.08), transparent 60%),
    var(--clr-dark-2);
}
.poc-progress-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 3.5rem 3rem;
}
.poc-progress-track {
  width: 100%;
  height: 16px;
  background: var(--clr-dark-3);
  border-radius: 50px;
  overflow: hidden;
  border: 1px solid var(--clr-border);
}
.poc-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--grad-brand);
  border-radius: 50px;
  transition: width 1s ease;
}
.poc-progress-caption {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--clr-text-muted);
}
.poc-progress-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.poc-stat-tile {
  background: var(--clr-dark-3);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.25rem;
  text-align: center;
}
.poc-stat-tile .poc-stat-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-bottom: 0.4rem;
}
.poc-stat-tile .poc-stat-value {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--clr-white);
}

/* -- Closing CTA -- */
.poc-cta {
  text-align: center;
  margin-top: 4rem;
}
.poc-cta p {
  color: var(--clr-text-muted);
  max-width: 520px;
  margin: 0 auto 1.5rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  .poc-year-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .poc-goal-split { grid-template-columns: 1fr; }
  .poc-spotlight-grid { grid-template-columns: 1fr; gap: 2.5rem; text-align: center; }
  .poc-spotlight-text { order: 2; }
  .poc-spotlight-media { order: 1; }
  .poc-timeline-grid { grid-template-columns: 1fr 1fr; }
  .poc-timeline-grid::before { display: none; }
  .poc-stage-gate { grid-template-columns: 1fr; }
  .poc-stage-gate::before { display: none; }
}
@media (max-width: 600px) {
  .poc-checklist { grid-template-columns: 1fr; }
  .poc-timeline-grid { grid-template-columns: 1fr; }
  .poc-year-grid { grid-template-columns: 1fr 1fr; }
  .poc-progress-card { padding: 2.5rem 1.5rem; }
  .poc-field-media { max-height: 260px; }
  .poc-field-caption { padding: 1.1rem 1.25rem; font-size: 0.85rem; }
}