/* ═══════════════════════════════════════════════════════════
   BYTS & BYTES — Clean white · cyan accents · premium
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #ffffff;
  --bg-soft: #f7fafc;
  --bg-muted: #f0f6fa;
  --ink: #0b1f3a;
  --ink-soft: #1a3352;
  --mute: #5a7388;
  --mute-light: #8ba3b8;
  --cyan: #00b4e6;
  --cyan-bright: #0090c8;
  --cyan-deep: #0077a8;
  --border: rgba(0, 140, 190, 0.16);
  --border-strong: rgba(0, 140, 190, 0.35);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --header-h: 72px;
  --radius: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) #e8eef2;
}

body {
  font-family: Inter, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

ul {
  list-style: none;
}

/* Subtle ambient layers */
.bg-ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 45% at 50% -5%, rgba(0, 180, 230, 0.08), transparent 55%),
    radial-gradient(ellipse 40% 30% at 90% 40%, rgba(0, 150, 200, 0.04), transparent 50%),
    #ffffff;
}

#circuit-canvas {
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.28;
}

main,
header,
footer {
  position: relative;
  z-index: 10;
}

/* ─── Header ─── */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.35s, box-shadow 0.35s, border-color 0.35s;
  border-bottom: 1px solid transparent;
}

#header.scrolled {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(11, 31, 58, 0.04);
}

.brand-name {
  color: var(--ink);
}

.brand-name .amp {
  color: var(--cyan-bright);
}

.brand-tag {
  color: var(--mute);
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
  transition: color 0.25s;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.3s var(--ease-out);
}

.nav-link:hover {
  color: var(--cyan-deep);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--cyan-deep);
  background: rgba(0, 180, 230, 0.08);
  transition: background 0.25s, box-shadow 0.25s, transform 0.25s;
}

.nav-cta:hover {
  background: rgba(0, 180, 230, 0.16);
  box-shadow: 0 6px 20px rgba(0, 180, 230, 0.15);
  transform: translateY(-1px);
}

#nav-toggle span {
  background: var(--cyan-deep);
}

@media (max-width: 767px) {
  .nav-panel {
    position: fixed;
    inset: 0;
    display: flex !important;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.75rem;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s, visibility 0.35s;
    z-index: 40;
  }

  .nav-panel.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-panel .nav-link {
    font-size: 1.1rem;
    color: var(--ink);
  }

  #nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  #nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  #nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ─── Buttons ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  color: #ffffff;
  background: linear-gradient(135deg, #0077a8 0%, #00b4e6 55%, #2dd4ff 100%);
  box-shadow: 0 8px 28px rgba(0, 160, 210, 0.28);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(0, 160, 210, 0.4);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  color: var(--ink-soft);
  border: 1px solid var(--border-strong);
  background: #fff;
  transition: transform 0.25s var(--ease-out), background 0.25s, border-color 0.25s;
}

.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(0, 180, 230, 0.06);
  color: var(--cyan-deep);
}

/* ─── Hero: seamless blended logo video (no box) ─── */
.hero-section {
  padding-top: calc(var(--header-h) + 0.25rem);
  padding-bottom: 0.5rem;
  overflow: hidden;
}

/* Full-width elegant stage — video dissolves into white page */
.logo-video-stage {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  aspect-ratio: 1728 / 768;
  min-height: 220px;
  max-height: min(52vh, 480px);
  background: transparent;
  /* Soft multi-axis mask so edges never read as a hard frame */
  -webkit-mask-image:
    linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 12%, #000 82%, transparent 100%);
  mask-image:
    linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%),
    linear-gradient(to bottom, transparent 0%, #000 12%, #000 82%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-composite: intersect;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
}

.logo-video-stage video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  background: transparent;
  /* Slight lift so logo reads premium without a container */
  filter: contrast(1.02) saturate(1.04);
}

/* Extra soft white blends (belt-and-suspenders with mask) */
.video-blend {
  position: absolute;
  pointer-events: none;
  z-index: 2;
}

.video-blend-top {
  left: 0;
  right: 0;
  top: 0;
  height: 22%;
  background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.75) 35%, transparent 100%);
}

.video-blend-bottom {
  left: 0;
  right: 0;
  bottom: 0;
  height: 28%;
  background: linear-gradient(0deg, #ffffff 0%, rgba(255, 255, 255, 0.85) 30%, transparent 100%);
}

.video-blend-left {
  top: 0;
  bottom: 0;
  left: 0;
  width: 14%;
  background: linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 40%, transparent 100%);
}

.video-blend-right {
  top: 0;
  bottom: 0;
  right: 0;
  width: 14%;
  background: linear-gradient(270deg, #ffffff 0%, rgba(255, 255, 255, 0.7) 40%, transparent 100%);
}

.video-blend-radial {
  inset: 0;
  background: radial-gradient(
    ellipse 72% 68% at 50% 48%,
    transparent 45%,
    rgba(255, 255, 255, 0.35) 72%,
    rgba(255, 255, 255, 0.75) 100%
  );
}

.hero-copy {
  position: relative;
}

.hero-accent {
  background: linear-gradient(105deg, #0077a8 0%, #00b4e6 45%, #2dd4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ─── Reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ─── Section labels ─── */
.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-deep);
}

.section-label .num {
  color: var(--mute-light);
}

/* ─── Capability cards ─── */
.service-card {
  padding: 1.75rem 1.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 8px 28px rgba(11, 31, 58, 0.04);
  transition: border-color 0.3s, transform 0.35s var(--ease-out), box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 140, 190, 0.1);
}

.service-card:hover::before {
  opacity: 1;
}

.service-num {
  font-family: Orbitron, system-ui, sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--mute-light);
  margin-bottom: 1rem;
}

/* ─── Paper portfolio — large, spread, mostly visible ─── */
.paper-stage {
  position: relative;
  width: 100%;
  min-height: clamp(620px, 84vh, 880px);
  margin-top: 0.5rem;
  perspective: 1800px;
  overflow: hidden;
  /* Soft edge so cards can breathe past the section */
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 2%,
    #000 96%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 2%,
    #000 96%,
    transparent 100%
  );
}

.paper-hint {
  position: absolute;
  top: 1.25rem;
  left: max(5%, calc(50% - 36rem));
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 16px rgba(11, 31, 58, 0.06);
  transition: opacity 0.4s, visibility 0.4s;
  pointer-events: none;
  white-space: nowrap;
}

.paper-hint.hidden {
  opacity: 0;
  visibility: hidden;
}

.hint-icon {
  color: var(--cyan);
  animation: nudge 1.6s ease-in-out infinite;
}

@keyframes nudge {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(-4px, 0);
  }
}

.paper-stack {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: opacity 0.5s, filter 0.5s;
}

.paper-stack.dimmed {
  opacity: 0.2;
  filter: blur(2px);
  pointer-events: none;
}

/* Large folio — ~65–70% on-screen via JS translateX(~32%) */
.paper {
  position: absolute;
  top: 50%;
  right: max(0px, calc(8vw - 40px));
  width: min(580px, 86vw);
  height: min(740px, 86vh);
  border-radius: 6px 18px 18px 6px;
  background: linear-gradient(145deg, #ffffff 0%, #f4f9fc 55%, #eef6fa 100%);
  border: 1px solid rgba(0, 140, 190, 0.2);
  box-shadow:
    0 28px 60px rgba(11, 31, 58, 0.14),
    0 0 0 1px rgba(255, 255, 255, 0.85) inset;
  cursor: pointer;
  transform-origin: left center;
  transform-style: preserve-3d;
  transition:
    transform 0.75s var(--ease-out),
    box-shadow 0.4s,
    border-color 0.3s,
    opacity 0.45s;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  will-change: transform;
}

.paper::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 16px;
  background: linear-gradient(90deg, rgba(11, 31, 58, 0.07), transparent);
  pointer-events: none;
  z-index: 2;
}

.paper:hover:not(.active) {
  border-color: var(--border-strong);
  box-shadow:
    0 32px 70px rgba(0, 140, 190, 0.18),
    0 0 0 1px rgba(0, 180, 230, 0.12);
}

.paper-spine {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, #2dd4ff, var(--cyan) 50%, #0077a8);
  z-index: 3;
}

.paper-content {
  height: 100%;
  padding: 2.25rem 2rem 1.75rem 2.1rem;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.paper-content::before {
  content: "";
  position: absolute;
  inset: 4rem 1.5rem 1.5rem 1.75rem;
  background: repeating-linear-gradient(
    180deg,
    transparent,
    transparent 30px,
    rgba(0, 140, 190, 0.055) 30px,
    rgba(0, 140, 190, 0.055) 31px
  );
  pointer-events: none;
  border-radius: 2px;
  z-index: 0;
}

.paper-content > * {
  position: relative;
  z-index: 1;
}

.paper-thumb {
  width: 100%;
  height: 42%;
  border-radius: 12px;
  margin-bottom: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, #0b1f3a 0%, #0a3a55 100%);
  flex-shrink: 0;
}

.paper-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.paper-thumb-mock {
  width: 100%;
  height: 100%;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.paper-thumb-mock .bar {
  height: 8px;
  border-radius: 4px;
  background: rgba(0, 180, 230, 0.35);
  width: 40%;
}

.paper-thumb-mock .row {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}

.paper-thumb-mock .cell {
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(0, 180, 230, 0.15);
}

.paper-code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.paper-title {
  font-family: Orbitron, system-ui, sans-serif;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: 0.65rem;
  color: var(--ink);
}

.paper-tagline {
  font-size: 1.05rem;
  color: var(--mute);
  line-height: 1.45;
  flex: 1;
  max-width: 28ch;
}

.paper-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  gap: 0.75rem;
}

.paper-status {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute-light);
}

.paper-status.live {
  color: #0a9f5c;
}

.paper-status.live::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #0a9f5c;
  margin-right: 0.4rem;
  box-shadow: 0 0 8px rgba(10, 159, 92, 0.45);
  vertical-align: middle;
}

.paper-action {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  opacity: 0.95;
  white-space: nowrap;
}

/* ─── Full-screen expand ─── */
.paper-expand {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.75rem, 3vw, 2rem);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s, visibility 0.45s;
}

.paper-expand.open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.paper-expand-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 31, 58, 0.28);
  backdrop-filter: blur(10px);
  cursor: pointer;
}

.paper-expand-panel {
  position: relative;
  z-index: 2;
  width: min(1100px, 96vw);
  max-height: min(92vh, 900px);
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid var(--border-strong);
  background: #ffffff;
  box-shadow: 0 40px 100px rgba(11, 31, 58, 0.22);
  transform: translateX(12%) rotate(4deg) scale(0.88);
  opacity: 0;
  transition: transform 0.7s var(--ease-out), opacity 0.5s ease;
  display: flex;
  flex-direction: column;
}

.paper-expand.open .paper-expand-panel {
  transform: translateX(0) rotate(0deg) scale(1);
  opacity: 1;
}

.detail-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 16px rgba(11, 31, 58, 0.08);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  cursor: pointer;
}

.detail-close:hover {
  color: var(--cyan-deep);
  border-color: var(--border-strong);
  background: #fff;
}

.detail-inner {
  overflow-y: auto;
  max-height: min(92vh, 900px);
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) transparent;
}

/* Expand layout */
.expand-shot {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 44vh;
  background: linear-gradient(145deg, #071422 0%, #0b2a40 50%, #0a3d5c 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.expand-shot.has-photo {
  background: #f4f1ea;
}

.expand-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

.expand-shot.has-photo img {
  object-fit: cover;
  object-position: center top;
}

.expand-shot-mock {
  width: 100%;
  height: 100%;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.expand-shot-mock .chrome {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
}

.expand-shot-mock .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.expand-shot-mock .chrome .dot:nth-child(1) {
  background: #ff5f57;
}
.expand-shot-mock .chrome .dot:nth-child(2) {
  background: #febc2e;
}
.expand-shot-mock .chrome .dot:nth-child(3) {
  background: #28c840;
}

.expand-shot-mock .mock-nav {
  height: 36px;
  border-radius: 8px;
  background: rgba(0, 180, 230, 0.12);
  border: 1px solid rgba(0, 180, 230, 0.2);
  display: flex;
  align-items: center;
  padding: 0 1rem;
  gap: 1rem;
}

.expand-shot-mock .mock-nav span {
  height: 8px;
  border-radius: 4px;
  background: rgba(0, 180, 230, 0.45);
}

.expand-shot-mock .mock-body {
  flex: 1;
  display: grid;
  grid-template-columns: 0.28fr 1fr;
  gap: 0.75rem;
  min-height: 0;
}

.expand-shot-mock .mock-side {
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(0, 180, 230, 0.12);
}

.expand-shot-mock .mock-main {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 0.65rem;
  min-height: 0;
}

.expand-shot-mock .mock-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.expand-shot-mock .kpi {
  height: 56px;
  border-radius: 8px;
  background: rgba(0, 180, 230, 0.1);
  border: 1px solid rgba(0, 180, 230, 0.18);
}

.expand-shot-mock .mock-chart {
  border-radius: 10px;
  background:
    linear-gradient(180deg, transparent 60%, rgba(0, 180, 230, 0.08) 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 24px,
      rgba(0, 180, 230, 0.06) 24px,
      rgba(0, 180, 230, 0.06) 25px
    );
  border: 1px solid rgba(0, 180, 230, 0.14);
  position: relative;
  overflow: hidden;
}

.expand-shot-mock .mock-chart::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 18%;
  height: 40%;
  border-radius: 4px;
  background: linear-gradient(90deg, transparent, rgba(45, 212, 255, 0.45), transparent);
  clip-path: polygon(0 70%, 15% 55%, 30% 62%, 45% 30%, 60% 40%, 75% 20%, 90% 35%, 100% 15%, 100% 100%, 0 100%);
}

.expand-logo-badge {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.85rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.expand-logo-badge img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}

.expand-logo-badge strong {
  font-family: Orbitron, system-ui, sans-serif;
  font-size: 0.8rem;
  color: var(--ink);
  letter-spacing: 0.04em;
}

.expand-body {
  padding: 1.75rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.75rem;
}

.detail-code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--cyan-deep);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.expand-body h3 {
  font-family: Orbitron, system-ui, sans-serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.expand-body .lead {
  color: var(--mute);
  font-size: 1.05rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.detail-badge {
  display: inline-flex;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid rgba(10, 159, 92, 0.35);
  color: #0a9f5c;
  background: rgba(10, 159, 92, 0.08);
  white-space: nowrap;
  margin-bottom: 1rem;
}

.expand-body h4 {
  font-family: Orbitron, system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  margin-bottom: 0.85rem;
}

.expand-body p {
  color: var(--mute);
  font-size: 0.98rem;
  margin-bottom: 1rem;
  line-height: 1.55;
}

.feature-list {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--ink);
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-soft);
}

.feature-list li::before {
  content: "▸";
  color: var(--cyan-deep);
  flex-shrink: 0;
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.35rem;
  margin-bottom: 0.5rem;
}

.tech-pills span {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--mute);
  background: #fff;
}

/* Interactive demo placeholder */
.demo-panel {
  border: 1px dashed rgba(0, 140, 190, 0.35);
  border-radius: 14px;
  background:
    linear-gradient(160deg, rgba(0, 180, 230, 0.04), transparent 60%),
    var(--bg-soft);
  padding: 1.15rem 1.2rem 1.25rem;
  min-height: 200px;
  display: flex;
  flex-direction: column;
}

.demo-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.demo-panel header span {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-deep);
}

.demo-panel header em {
  font-style: normal;
  font-size: 0.7rem;
  color: var(--mute-light);
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

.demo-canvas {
  flex: 1;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  position: relative;
  overflow: hidden;
  min-height: 140px;
}

.demo-canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(0, 180, 230, 0.12), transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(0, 120, 180, 0.1), transparent 35%);
  animation: demoPulse 4s ease-in-out infinite;
}

.demo-canvas::after {
  content: "Interactive demo · coming online";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
  text-align: center;
  padding: 1rem;
}

@keyframes demoPulse {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.03);
  }
}

.detail-cta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}

.detail-cta .btn-primary,
.detail-cta .btn-ghost,
.detail-cta .btn-live {
  flex: 1 1 200px;
  text-align: center;
}

.demo-link {
  display: block;
  margin-top: 0.85rem;
  text-align: center;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  text-decoration: none;
  transition: color 0.2s;
}

.demo-link:hover {
  color: var(--ink);
}

.expand-copy .lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  font-weight: 500;
}

.expand-explainer p {
  color: var(--mute);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 0.85rem;
}

.expand-explainer p:last-child {
  margin-bottom: 0;
}

.paper-thumb img {
  object-fit: cover;
  object-position: top center;
}

/* Smoother expand panel entrance */
.paper-expand-panel {
  transition:
    transform 0.65s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.45s ease;
}

.paper-expand.open .expand-shot.has-photo img {
  animation: shotIn 0.7s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes shotIn {
  from {
    opacity: 0;
    transform: scale(1.04);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.btn-live {
  font-weight: 700;
}

body.paper-open {
  overflow: hidden;
}

/* ─── Process ─── */
@media (min-width: 1024px) {
  .process-track {
    position: relative;
  }
  .process-track::before {
    content: "";
    position: absolute;
    top: 28px;
    left: 6%;
    right: 6%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
    z-index: 0;
  }
}

.step-node {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: Orbitron, system-ui, sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan-deep);
  border: 1px solid var(--border-strong);
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 160, 210, 0.12);
}

/* ─── CTA banner ─── */
.cta-banner {
  background: linear-gradient(160deg, #f4fafd 0%, #ffffff 45%, #eef7fb 100%);
  border: 1px solid var(--border-strong);
  box-shadow: 0 20px 60px rgba(0, 140, 190, 0.08);
}

.cta-glow {
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 70%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(0, 180, 230, 0.12), transparent 70%);
  pointer-events: none;
}

/* ─── Contact ─── */
.contact-card {
  background: #fff;
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 60px rgba(11, 31, 58, 0.08);
}

.contact-glow {
  position: absolute;
  top: -25%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(0, 180, 230, 0.1), transparent 70%);
  pointer-events: none;
}

.form-input {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--ink);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}

.form-input::placeholder {
  color: var(--mute-light);
}

.form-input:focus {
  border-color: var(--cyan);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0, 180, 230, 0.12);
}

#contact-form.contact-prefilled .form-input[name="message"] {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 180, 230, 0.14);
  background: #f4fbfd;
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}

/* ─── Responsive ─── */
@media (max-width: 720px) {
  .detail-body {
    grid-template-columns: 1fr;
  }
  .detail-hero {
    grid-template-columns: 1fr;
    padding: 1.25rem;
  }
  .detail-body {
    padding: 1.25rem;
  }
  .paper-stage {
    min-height: clamp(540px, 78vh, 720px);
  }

  .paper {
    width: min(460px, 90vw);
    height: min(620px, 78vh);
    right: 0;
  }

  .expand-body {
    grid-template-columns: 1fr;
    padding: 1.25rem;
  }

  .expand-shot {
    max-height: 34vh;
  }

  .paper-expand-panel {
    max-height: 94vh;
  }
}

@media (min-width: 1100px) {
  .paper {
    width: min(600px, 48vw);
    height: min(760px, 88vh);
  }
}
  .logo-video-stage {
    max-height: min(38vh, 300px);
    min-height: 180px;
  }

  .video-blend-left,
  .video-blend-right {
    width: 18%;
  }

  .video-blend-top {
    height: 26%;
  }

  .video-blend-bottom {
    height: 32%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}