/* Home: immersive slide-show presentation */
:root {
  --ppt-bg-deep: #0c0e11;
  --ppt-bg-mid: #151922;
  --ppt-chrome: #1e2430;
  --ppt-accent: #e85d2c;
  --ppt-accent-soft: rgba(232, 93, 44, 0.2);
  --ppt-slide-ink: #1a1f28;
  --ppt-slide-muted: #4a5568;
  --ppt-glow: rgba(94, 130, 176, 0.45);
  --ppt-font-display: "Sora", system-ui, sans-serif;
  --ppt-font-body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
}

main.main--home {
  max-width: none;
  padding-bottom: 0;
}

.hero-deck-note {
  max-width: 1100px;
  margin: 0 auto 1.25rem;
  padding: 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.55;
}

.hero-deck-note strong {
  color: var(--ribbon-mid);
}

/* ----- Full-bleed theater ----- */
.ppt-theater {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  background:
    radial-gradient(ellipse 100% 80% at 50% -30%, rgba(74, 95, 120, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(232, 93, 44, 0.08) 0%, transparent 50%),
    linear-gradient(165deg, var(--ppt-bg-mid) 0%, var(--ppt-bg-deep) 55%, #07080a 100%);
  color: #c5cdd8;
  padding: 0 0 2.5rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.ppt-theater::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
  pointer-events: none;
}

.ppt-theater {
  position: relative;
}

.ppt-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.25rem 1rem 0;
}

/* Fake app chrome */
.ppt-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.5rem 0.85rem;
  margin-bottom: 1rem;
  background: linear-gradient(180deg, var(--ppt-chrome) 0%, #171c26 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  font-size: 0.78rem;
  color: #8b95a8;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.ppt-file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ppt-font-body);
}

.ppt-file-icon {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--ppt-accent) 0%, #c4471f 100%);
  display: grid;
  place-items: center;
  font-size: 0.65rem;
  font-weight: 800;
  color: #fff;
}

.ppt-badge {
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(232, 93, 44, 0.15);
  color: #f0b49a;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.65rem;
}

/* Stage row: arrows + viewport */
.ppt-stage-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(0.35rem, 2vw, 1rem);
  align-items: center;
}

.ppt-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #e8ecf4;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s, transform 0.15s, border-color 0.2s;
  flex-shrink: 0;
}

.ppt-arrow:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.ppt-arrow:active {
  transform: scale(0.94);
}

.ppt-arrow:focus-visible {
  outline: 2px solid var(--ppt-accent);
  outline-offset: 3px;
}

@media (max-width: 520px) {
  .ppt-stage-row {
    grid-template-columns: 1fr;
  }
  .ppt-arrow {
    display: none;
  }
}

.ppt-viewport {
  perspective: 1400px;
  min-width: 0;
}

.ppt-slide-shell {
  position: relative;
  border-radius: 10px;
  padding: 3px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.02) 50%, rgba(0, 0, 0, 0.2) 100%);
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.25),
    0 24px 48px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(0, 0, 0, 0.35);
}

.ppt-slide-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 10px;
  pointer-events: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.ppt-aspect {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: min(72vh, 620px);
  margin: 0 auto;
  border-radius: 8px;
  overflow: hidden;
  background: #0a0c0f;
}

.ppt-slide-stage {
  position: absolute;
  inset: 0;
}

/* Individual slides */
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(28px) scale(0.985);
  transition:
    opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  font-family: var(--ppt-font-body);
  color: var(--ppt-slide-ink);
  overflow: hidden;
  z-index: 0;
}

.slide.is-active {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0) scale(1);
  z-index: 2;
}

.slide.is-exit-left {
  transform: translateX(-20px) scale(0.99);
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .slide {
    transition: opacity 0.2s ease;
    transform: none !important;
  }

  .slide-kicker,
  .slide-headline,
  .slide-lede,
  .quirk-strip {
    animation: none !important;
  }
}

.slide-inner {
  height: 100%;
  padding: clamp(1.25rem, 4vw, 2.75rem) clamp(1.25rem, 5vw, 3.5rem);
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Title slide */
.slide--title .slide-inner {
  text-align: center;
  justify-content: center;
  align-items: center;
  padding-bottom: 2.85rem;
  background:
    radial-gradient(ellipse 90% 70% at 70% 20%, rgba(232, 93, 44, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 10% 90%, rgba(61, 81, 99, 0.2) 0%, transparent 50%),
    linear-gradient(165deg, #fafbfc 0%, #f0f3f7 100%);
}

.slide--title .slide-bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
}

.slide--title .slide-bg-blob--1 {
  width: min(55%, 380px);
  height: min(55%, 380px);
  background: linear-gradient(135deg, #5a7390, #3d5163);
  top: -15%;
  right: -8%;
}

.slide--title .slide-bg-blob--2 {
  width: min(40%, 280px);
  height: min(40%, 280px);
  background: linear-gradient(135deg, #e85d2c, #f4a06a);
  bottom: -10%;
  left: -5%;
  opacity: 0.35;
}

.slide-kicker {
  font-family: var(--ppt-font-display);
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ppt-accent);
  margin: 0 0 1rem;
  animation: pptFadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

.slide-headline {
  font-family: var(--ppt-font-display);
  font-weight: 800;
  font-size: clamp(1.65rem, 4.5vw, 2.65rem);
  line-height: 1.12;
  margin: 0 0 0.75rem;
  color: #1e2a3a;
  letter-spacing: -0.02em;
  animation: pptFadeUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.18s both;
}

.slide-headline span {
  display: block;
  font-weight: 600;
  font-size: 0.55em;
  color: var(--ppt-slide-muted);
  margin-top: 0.35rem;
  letter-spacing: 0;
}

.slide-lede {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  line-height: 1.55;
  max-width: 38rem;
  margin: 0 auto 1.25rem;
  color: var(--ppt-slide-muted);
  animation: pptFadeUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.28s both;
}

@keyframes pptFadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quirk-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  animation: pptFadeUp 0.75s cubic-bezier(0.22, 1, 0.36, 1) 0.38s both;
}

.quirk-pill {
  background: rgba(232, 93, 44, 0.1);
  color: #2d3748;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: clamp(0.75rem, 1.6vw, 0.88rem);
  font-weight: 600;
  border: 1px solid rgba(232, 93, 44, 0.25);
}

.slide-footer-brand {
  position: absolute;
  bottom: clamp(0.85rem, 2.5vw, 1.35rem);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #94a3b8;
  font-weight: 600;
}

/* Content slides (2–4) */
.slide--content .slide-inner {
  background: linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
  border-left: 6px solid var(--ppt-accent);
  padding-left: clamp(1rem, 4vw, 2.5rem);
}

.slide-tag {
  font-family: var(--ppt-font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #94a3b8;
  margin: 0 0 0.65rem;
}

.slide--content h2 {
  font-family: var(--ppt-font-display);
  font-size: clamp(1.25rem, 3.2vw, 1.85rem);
  font-weight: 700;
  color: #1e2a3a;
  margin: 0 0 1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.slide--content p {
  margin: 0 0 0.85rem;
  font-size: clamp(0.9rem, 1.9vw, 1.05rem);
  line-height: 1.55;
  color: #3d4a5c;
}

.slide--content ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.slide--content li {
  position: relative;
  padding-left: 1.65rem;
  margin-bottom: 0.65rem;
  font-size: clamp(0.88rem, 1.85vw, 1.02rem);
  line-height: 1.45;
  color: #3d4a5c;
}

.slide--content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--ppt-accent), #f4a06a);
  box-shadow: 0 0 0 2px rgba(232, 93, 44, 0.2);
}

.slide--split .slide-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
  background: linear-gradient(135deg, #ffffff 0%, #f0f4f8 100%);
  border-left: 6px solid #3d5163;
}

.slide-split-main {
  min-width: 0;
}

@media (min-width: 700px) {
  .slide--split .slide-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: stretch;
  }
}

.slide-stat-card {
  background: linear-gradient(160deg, #3d5163 0%, #2a3847 100%);
  color: #e8eef4;
  border-radius: 10px;
  padding: 1.1rem 1.25rem;
  box-shadow: 0 12px 32px rgba(45, 55, 72, 0.25);
}

.slide-stat-card strong {
  display: block;
  font-family: var(--ppt-font-display);
  font-size: 1.65rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.25rem;
}

.slide-stat-card span {
  font-size: 0.82rem;
  opacity: 0.88;
  line-height: 1.4;
}

.slide--cta .slide-inner {
  text-align: center;
  border-left: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 120%, rgba(232, 93, 44, 0.15) 0%, transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #eef2f7 100%);
  border-top: 5px solid var(--ppt-accent);
  justify-content: center;
}

.slide--cta h2 {
  font-family: var(--ppt-font-display);
  font-size: clamp(1.35rem, 3.5vw, 1.95rem);
  margin: 0 0 0.85rem;
}

.slide--cta p {
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.slide--cta .btn-contact {
  margin-top: 0.35rem;
}

/* Thumbnail strip */
.ppt-thumbs-wrap {
  margin-top: 1.25rem;
}

.ppt-thumbs-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #6b778c;
  margin-bottom: 0.5rem;
  padding-left: 0.15rem;
}

.slide-rail {
  display: flex;
  flex-direction: row;
  gap: 0.65rem;
  overflow-x: auto;
  padding: 0.35rem 0 0.5rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.slide-thumb {
  flex: 0 0 auto;
  width: 132px;
  height: 74px;
  border-radius: 6px;
  padding: 0;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  border: 2px solid rgba(255, 255, 255, 0.1);
  background: #1a1f28;
  position: relative;
  overflow: hidden;
  scroll-snap-align: start;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.slide-thumb::before {
  content: attr(data-label);
  position: absolute;
  bottom: 4px;
  left: 6px;
  right: 6px;
  font-size: 0.58rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
  z-index: 1;
  line-height: 1.2;
}

.slide-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.95;
}

.slide-thumb--1::after {
  background: linear-gradient(145deg, #5a7390 0%, #e85d2c 90%);
}

.slide-thumb--2::after {
  background: linear-gradient(180deg, #fff 0%, #e2e8f0 100%);
  opacity: 1;
}

.slide-thumb--2::before {
  color: #1e2a3a;
  text-shadow: none;
}

.slide-thumb--3::after {
  background: linear-gradient(135deg, #3d5163 0%, #f0f4f8 100%);
}

.slide-thumb--4::after {
  background: linear-gradient(180deg, #ffffff 0%, #f4b08a 120%);
}

.slide-thumb:hover {
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
}

.slide-thumb.is-active {
  border-color: var(--ppt-accent);
  box-shadow: 0 0 0 3px var(--ppt-accent-soft), 0 8px 24px rgba(0, 0, 0, 0.35);
}

.slide-thumb-num {
  position: absolute;
  top: 5px;
  left: 6px;
  font-size: 0.6rem;
  font-weight: 800;
  color: #fff;
  background: rgba(0, 0, 0, 0.35);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  z-index: 2;
}

.slide-thumb--2 .slide-thumb-num {
  color: #1e2a3a;
  background: rgba(255, 255, 255, 0.85);
}

/* Bottom status */
.ppt-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
  padding: 0.6rem 0.85rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.78rem;
  color: #8b95a8;
}

.ppt-counter {
  font-family: var(--ppt-font-display);
  font-weight: 700;
  color: #e8ecf4;
  font-size: 0.85rem;
}

.ppt-counter span {
  color: var(--ppt-accent);
}

.ppt-dots {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.ppt-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transition: transform 0.2s, background 0.2s;
}

.ppt-dot.is-active {
  background: var(--ppt-accent);
  transform: scale(1.35);
  box-shadow: 0 0 10px var(--ppt-accent-soft);
}

.ppt-hint {
  font-size: 0.72rem;
  opacity: 0.85;
}

.status-bar {
  max-width: 1100px;
  margin: 1.5rem auto 0;
  padding: 0 1rem;
}

body .site-footer {
  margin-top: 0;
  padding-top: 1.5rem;
}