/* ═══════════════════════════════════════════════════════════
   IoTFIY AC-Kit — Industrial BMS Control Room Theme
   Distinct from Mushaba: light base, sharp panels, orange/sky
   ═══════════════════════════════════════════════════════════ */

.ac-kit-page {
  --ack-navy: #0f172a;
  --ack-navy-soft: #1e293b;
  --ack-orange: #f97316;
  --ack-orange-dark: #ea580c;
  --ack-sky: #0ea5e9;
  --ack-sky-dark: #0284c7;
  --ack-green: #22c55e;
  --ack-red: #ef4444;
  --ack-bg: #f1f5f9;
  --ack-panel: #ffffff;
  --ack-border: #cbd5e1;
  --ack-muted: #64748b;
  font-family: 'Outfit', sans-serif;
  background: var(--ack-bg);
  color: var(--ack-navy);
}

.ac-kit-page h1,
.ac-kit-page h2,
.ac-kit-page h3,
.ac-kit-page h4 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ac-kit-page .mono {
  font-family: 'JetBrains Mono', monospace;
}

.ac-kit-page .header {
  background: rgba(255, 255, 255, 0.92) !important;
  backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid var(--ack-border) !important;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04) !important;
  padding: 10px 0 !important;
}

.ac-kit-page .header .logo img {
  max-height: 34px;
  filter: none;
}

.ac-kit-page .header .navmenu > ul > li > a {
  color: var(--ack-navy-soft) !important;
}

.ac-kit-page .header .navmenu > ul > li > a.active,
.ac-kit-page .header .navmenu > ul > li > a:hover {
  color: var(--ack-orange) !important;
}

.ac-kit-page .header .btn-getstarted {
  background: var(--ack-navy) !important;
  border: none !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
}

.ac-kit-page .header .btn-getstarted:hover {
  background: var(--ack-orange) !important;
}

.ac-kit-page .main {
  padding-top: 0;
}

/* ── Hero: light industrial split ── */
.ack-hero {
  background: linear-gradient(180deg, #fff 0%, var(--ack-bg) 100%);
  padding: calc(88px + 1.5rem) 0 0;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--ack-navy);
}

.ack-hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    rgba(14, 165, 233, 0.03) 8px,
    rgba(14, 165, 233, 0.03) 16px
  );
  pointer-events: none;
}

.ack-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 2rem;
  align-items: stretch;
  position: relative;
  z-index: 1;
}

.ack-hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--ack-navy);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.25rem;
}

.ack-hero__label i {
  color: var(--ack-orange);
}

.ack-hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.05;
  margin-bottom: 1rem;
  color: var(--ack-navy);
}

.ack-hero h1 em {
  font-style: normal;
  color: var(--ack-orange);
}

.ack-hero__desc {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ack-muted);
  max-width: 480px;
  margin-bottom: 1.5rem;
}

.ack-hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 1.5rem;
}

.ack-metric {
  background: var(--ack-panel);
  border: 1px solid var(--ack-border);
  padding: 12px;
  border-left: 3px solid var(--ack-sky);
}

.ack-metric--warn {
  border-left-color: var(--ack-orange);
}

.ack-metric--ok {
  border-left-color: var(--ack-green);
}

.ack-metric__val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ack-navy);
  line-height: 1;
}

.ack-metric__lbl {
  font-size: 0.6875rem;
  color: var(--ack-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

.ack-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ack-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.2s, transform 0.2s;
}

.ack-btn--solid {
  background: var(--ack-orange);
  color: #fff !important;
}

.ack-btn--solid:hover {
  background: var(--ack-orange-dark);
  transform: translateY(-1px);
  color: #fff !important;
}

.ack-btn--outline {
  background: transparent;
  border: 2px solid var(--ack-navy);
  color: var(--ack-navy) !important;
}

.ack-btn--outline:hover {
  background: var(--ack-navy);
  color: #fff !important;
}

.ack-btn--navy {
  background: var(--ack-navy);
  color: #fff !important;
}

.ack-btn--navy:hover {
  background: var(--ack-orange);
  color: #fff !important;
}

/* Monitor frame */
.ack-monitor {
  background: var(--ack-navy);
  border-radius: 4px;
  padding: 12px 12px 16px;
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.25);
  position: relative;
}

.ack-monitor__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  padding-left: 4px;
}

.ack-monitor__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #475569;
}

.ack-monitor__dot--r { background: #ef4444; }
.ack-monitor__dot--y { background: #eab308; }
.ack-monitor__dot--g { background: #22c55e; }

.ack-monitor__title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  color: #94a3b8;
  margin-left: 8px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ack-monitor__screen {
  position: relative;
  border-radius: 2px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16 / 10;
}

.ack-monitor__screen video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ack-monitor__live {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(239, 68, 68, 0.9);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  z-index: 2;
}

.ack-monitor__live::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: ack-pulse 1.2s infinite;
}

@keyframes ack-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.ack-monitor__mute {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border-radius: 4px;
  border: none;
  background: rgba(15, 23, 42, 0.85);
  color: #fff;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ack-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 2rem;
  background: var(--ack-navy);
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
}

.ack-hero__strip span {
  flex: 1;
  min-width: 140px;
  padding: 14px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  color: #94a3b8;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ack-hero__strip span i {
  color: var(--ack-orange);
}

/* ── Video Control Room ── */
.ack-videohub {
  background: var(--ack-navy);
  padding: clamp(3rem, 7vw, 5rem) 0;
  position: relative;
}

.ack-videohub::before {
  content: 'VIDEO HUB';
  position: absolute;
  top: 1rem;
  right: 2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  color: rgba(255, 255, 255, 0.06);
  letter-spacing: 0.3em;
}

.ack-videohub__head {
  margin-bottom: 2rem;
}

.ack-videohub__head h2 {
  color: #fff;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.ack-videohub__head p {
  color: #94a3b8;
  max-width: 560px;
  margin: 0;
}

.ack-videohub__tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  color: var(--ack-orange);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.ack-videohub__layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1rem;
  align-items: start;
}

.ack-videohub__main {
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.ack-videohub__main video {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  background: #000;
}

.ack-videohub__now {
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.ack-videohub__now h3 {
  color: #fff;
  font-size: 0.9375rem;
  margin: 0 0 4px;
}

.ack-videohub__now p {
  color: #64748b;
  font-size: 0.8125rem;
  margin: 0;
}

.ack-videohub__playlist {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 520px;
  overflow-y: auto;
  padding-right: 4px;
}

.ack-videohub__playlist::-webkit-scrollbar {
  width: 4px;
}

.ack-videohub__playlist::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.ack-vid-item {
  display: flex;
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s, border-color 0.2s;
  width: 100%;
}

.ack-vid-item:hover,
.ack-vid-item.active {
  background: rgba(249, 115, 22, 0.12);
  border-color: rgba(249, 115, 22, 0.4);
}

.ack-vid-item__thumb {
  width: 72px;
  height: 48px;
  border-radius: 2px;
  background: var(--ack-navy-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--ack-orange);
  font-size: 1.25rem;
  overflow: hidden;
}

.ack-vid-item__thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.ack-vid-item__meta h4 {
  color: #e2e8f0;
  font-size: 0.8125rem;
  margin: 0 0 2px;
  font-weight: 600;
}

.ack-vid-item__meta span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  color: #64748b;
}

/* ── Alert problems band ── */
.ack-alerts {
  background: #1c1917;
  padding: clamp(2rem, 5vw, 3rem) 0;
  border-top: 4px solid var(--ack-red);
}

.ack-alerts__head {
  text-align: center;
  margin-bottom: 2rem;
}

.ack-alerts__head h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.5rem;
}

.ack-alerts__head p {
  color: #a8a29e;
  margin: 0;
}

.ack-alerts__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ack-alert-tile {
  background: #292524;
  padding: 1.5rem;
  text-align: center;
}

.ack-alert-tile__icon {
  font-size: 1.5rem;
  color: var(--ack-red);
  margin-bottom: 0.75rem;
}

.ack-alert-tile__stat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}

.ack-alert-tile h3 {
  color: #fca5a5;
  font-size: 0.8125rem;
  margin: 0.75rem 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ack-alert-tile p {
  color: #78716c;
  font-size: 0.8125rem;
  margin: 0;
  line-height: 1.5;
}

/* ── Solution pipeline ── */
.ack-pipeline {
  background: #fff;
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

.ack-pipeline__head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.ack-pipeline__head h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

.ack-pipeline__head p {
  color: var(--ack-muted);
  margin: 0;
}

.ack-pipeline__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.ack-pipeline__steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--ack-sky), var(--ack-orange));
  z-index: 0;
}

.ack-step {
  text-align: center;
  padding: 0 1rem;
  position: relative;
  z-index: 1;
}

.ack-step__num {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: var(--ack-navy);
  color: #fff;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.125rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transform: rotate(-3deg);
}

.ack-step:nth-child(even) .ack-step__num {
  background: var(--ack-orange);
  transform: rotate(3deg);
}

.ack-step h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.375rem;
}

.ack-step p {
  font-size: 0.8125rem;
  color: var(--ack-muted);
  margin: 0;
  line-height: 1.5;
}

/* ── Feature rows with video ── */
.ack-features {
  background: var(--ack-bg);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

.ack-features__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.ack-features__head h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0;
}

.ack-features__head p {
  color: var(--ack-muted);
  margin: 0;
  max-width: 400px;
  text-align: right;
}

.ack-feat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 2px;
  background: var(--ack-panel);
  border: 1px solid var(--ack-border);
}

.ack-feat-row:nth-child(even) {
  direction: rtl;
}

.ack-feat-row:nth-child(even) > * {
  direction: ltr;
}

.ack-feat-row__text {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ack-feat-row__idx {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  color: var(--ack-orange);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.ack-feat-row__text h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.ack-feat-row__text p {
  color: var(--ack-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
  margin: 0 0 1rem;
}

.ack-feat-row__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ack-feat-row__tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  padding: 4px 8px;
  background: var(--ack-bg);
  border: 1px solid var(--ack-border);
  color: var(--ack-navy-soft);
}

.ack-feat-row__media {
  background: var(--ack-navy);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ack-feat-row__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
}

/* ── Live dashboard mock ── */
.ack-dashmock {
  background: #fff;
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  border-top: 1px solid var(--ack-border);
  border-bottom: 1px solid var(--ack-border);
}

.ack-dashmock__wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  border: 2px solid var(--ack-navy);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
}

.ack-dashmock__sidebar {
  background: var(--ack-navy);
  padding: 1.25rem;
  color: #94a3b8;
}

.ack-dashmock__sidebar h4 {
  color: #fff;
  font-size: 0.8125rem;
  margin-bottom: 1rem;
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ack-dashmock__nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-size: 0.8125rem;
  border-radius: 4px;
  margin-bottom: 4px;
  cursor: default;
}

.ack-dashmock__nav-item.active {
  background: rgba(249, 115, 22, 0.2);
  color: var(--ack-orange);
}

.ack-dashmock__main {
  padding: 1.5rem;
  background: #f8fafc;
}

.ack-dashmock__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 1.25rem;
}

.ack-dash-stat {
  background: #fff;
  border: 1px solid var(--ack-border);
  padding: 12px;
  border-radius: 4px;
}

.ack-dash-stat__label {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ack-muted);
  margin-bottom: 4px;
}

.ack-dash-stat__value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ack-navy);
}

.ack-dash-stat__value--orange { color: var(--ack-orange); }
.ack-dash-stat__value--green { color: var(--ack-green); }
.ack-dash-stat__value--sky { color: var(--ack-sky); }

.ack-dashmock__devices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.ack-device-chip {
  background: #fff;
  border: 1px solid var(--ack-border);
  padding: 10px 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8125rem;
}

.ack-device-chip__temp {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  color: var(--ack-sky-dark);
}

.ack-device-chip.locked .ack-device-chip__temp {
  color: var(--ack-orange);
}

.ack-device-chip__status {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ack-green);
}

.ack-device-chip.offline .ack-device-chip__status {
  background: var(--ack-red);
}

/* ── Hardware specs ── */
.ack-hardware {
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  background: var(--ack-bg);
}

.ack-hardware__head {
  text-align: center;
  margin-bottom: 2rem;
}

.ack-hardware__table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 2px solid var(--ack-navy);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.ack-hardware__table th,
.ack-hardware__table td {
  padding: 14px 16px;
  border: 1px solid var(--ack-border);
  text-align: center;
}

.ack-hardware__table th {
  background: var(--ack-navy);
  color: #fff;
  font-weight: 600;
}

.ack-hardware__table th:first-child,
.ack-hardware__table td:first-child {
  text-align: left;
  font-weight: 600;
  background: #f8fafc;
}

.ack-hardware__table .rec {
  background: rgba(249, 115, 22, 0.08);
}

.ack-hardware__table .rec th {
  background: var(--ack-orange);
}

.ack-hardware__visual img {
  width: 100%;
  max-width: 900px;
  display: block;
  margin: 0 auto;
  border: 2px solid var(--ack-navy);
}

/* ── Pricing matrix ── */
.ack-pricing {
  background: #fff;
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

.ack-pricing__matrix {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  border: 2px solid var(--ack-navy);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.ack-pricing__cell {
  padding: 14px 16px;
  border: 1px solid var(--ack-border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.ack-pricing__cell--label {
  justify-content: flex-start;
  font-weight: 600;
  background: #f8fafc;
  text-align: left;
}

.ack-pricing__cell--head {
  background: var(--ack-navy);
  color: #fff;
  font-weight: 700;
  flex-direction: column;
  gap: 4px;
  padding: 1.25rem;
}

.ack-pricing__cell--head.featured {
  background: var(--ack-orange);
}

.ack-pricing__cell--head small {
  font-weight: 400;
  opacity: 0.85;
  font-size: 0.75rem;
}

.ack-pricing__cell--price {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--ack-orange);
}

.ack-pricing__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.ack-plan {
  border: 2px solid var(--ack-border);
  padding: 1.5rem;
  background: #fff;
}

.ack-plan--featured {
  border-color: var(--ack-orange);
  box-shadow: 0 12px 40px rgba(249, 115, 22, 0.15);
}

.ack-plan h3 {
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.ack-plan__hw {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  color: var(--ack-navy);
  margin: 0.75rem 0 0.25rem;
}

.ack-plan__sw {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  color: var(--ack-orange);
  margin-bottom: 0.75rem;
}

.ack-plan ul {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--ack-muted);
}

.ack-plan li {
  padding: 4px 0;
  display: flex;
  gap: 6px;
}

.ack-plan li i {
  color: var(--ack-green);
}

/* ── Use cases masonry ── */
.ack-industries {
  background: var(--ack-navy);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
}

.ack-industries__head h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.5rem;
}

.ack-industries__head p {
  color: #94a3b8;
  margin-bottom: 2rem;
}

.ack-industries__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.ack-industry {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  min-height: 280px;
  background: var(--ack-navy-soft);
}

.ack-industry video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  transition: opacity 0.4s;
}

.ack-industry:hover video {
  opacity: 0.55;
}

.ack-industry__overlay {
  position: relative;
  z-index: 1;
  padding: 1.25rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(180deg, transparent 30%, rgba(15, 23, 42, 0.95) 100%);
}

.ack-industry__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6875rem;
  color: var(--ack-orange);
  margin-bottom: 0.5rem;
}

.ack-industry h3 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.ack-industry ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ack-industry li {
  font-size: 0.75rem;
  color: #94a3b8;
  padding: 2px 0;
  display: flex;
  gap: 6px;
}

.ack-industry li i {
  color: var(--ack-orange);
  font-size: 0.625rem;
  margin-top: 3px;
}

/* ── ROI + CTA ── */
.ack-roi {
  background: linear-gradient(135deg, var(--ack-orange) 0%, var(--ack-orange-dark) 100%);
  padding: clamp(2.5rem, 6vw, 3.5rem) 0;
  text-align: center;
  color: #fff;
}

.ack-roi h2 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1rem;
}

.ack-roi blockquote {
  font-size: 1.0625rem;
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto 1.5rem;
  font-style: italic;
  opacity: 0.95;
}

.ack-roi__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8125rem;
}

.ack-cta {
  background: #fff;
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  text-align: center;
  border-top: 3px solid var(--ack-navy);
}

.ack-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.75rem;
}

.ack-cta p {
  color: var(--ack-muted);
  max-width: 520px;
  margin: 0 auto 1.5rem;
}

.ack-cta__actions {
  justify-content: center;
  margin-bottom: 1.5rem;
}

.ack-cta__brand {
  font-size: 0.8125rem;
  color: var(--ack-muted);
  line-height: 1.7;
}

.ack-cta__brand a {
  color: var(--ack-sky-dark);
}

/* Side quick nav (desktop) */
.ack-sidenav {
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 990;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--ack-navy);
  padding: 8px 6px;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.3);
}

.ack-sidenav a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.875rem;
  transition: color 0.2s, background 0.2s;
}

.ack-sidenav a:hover,
.ack-sidenav a.active {
  color: var(--ack-orange);
  background: rgba(249, 115, 22, 0.15);
}

.ack-sidenav a[title] {
  position: relative;
}

.ac-kit-page .scroll-top {
  border-radius: 4px;
}

/* Responsive */
@media (max-width: 1199px) {
  .ack-sidenav { display: none; }

  .ack-hero__inner,
  .ack-videohub__layout,
  .ack-feat-row,
  .ack-dashmock__wrap {
    grid-template-columns: 1fr;
  }

  .ack-feat-row:nth-child(even) {
    direction: ltr;
  }

  .ack-alerts__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ack-pipeline__steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .ack-pipeline__steps::before {
    display: none;
  }

  .ack-industries__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ack-pricing__matrix {
    display: none;
  }

  .ack-pricing__cards {
    grid-template-columns: 1fr;
  }

  .ack-plan--featured {
    order: -1;
  }

  .ack-dashmock__stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .ack-dashmock__devices {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .ack-hero__metrics {
    grid-template-columns: 1fr;
  }

  .ack-alerts__grid {
    grid-template-columns: 1fr;
  }

  .ack-pipeline__steps {
    grid-template-columns: 1fr;
  }

  .ack-industries__grid {
    grid-template-columns: 1fr;
  }

  .ack-features__head p {
    text-align: left;
  }

  .ack-hardware__table {
    font-size: 0.75rem;
  }

  .ack-hardware__table th,
  .ack-hardware__table td {
    padding: 8px;
  }

  .ac-kit-page .main {
    padding-bottom: 80px;
  }
}

/* ── Mobile navigation (AC-Kit) ── */
.ac-kit-page .header .mobile-nav-toggle {
  display: none !important;
}

.ac-kit-page .scroll-top {
  z-index: 9990;
  bottom: calc(72px + env(safe-area-inset-bottom, 0px));
}

.ac-kit-page .mobile-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(249, 115, 22, 0.25);
  padding: calc(8px + env(safe-area-inset-top, 0px)) 16px 10px;
}

.ac-kit-page .mobile-nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ac-kit-page .mobile-logo img {
  max-height: 32px;
  filter: brightness(0) invert(1);
}

.ac-kit-page .mobile-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ac-kit-page .mobile-nav-cta {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 6px;
  background: var(--ack-orange);
  color: #fff !important;
  text-decoration: none;
}

.ac-kit-page .mobile-menu-toggle {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(249, 115, 22, 0.2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
}

.ac-kit-page .mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 10040;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  border: none;
  padding: 0;
  cursor: pointer;
}

.ac-kit-page.mobile-menu-open .mobile-menu-backdrop {
  opacity: 1;
  visibility: visible;
}

.ac-kit-page .mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(300px, 86vw);
  height: 100dvh;
  background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
  border-left: 1px solid rgba(249, 115, 22, 0.25);
  z-index: 10045;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.ac-kit-page .mobile-menu.active {
  transform: translateX(0);
}

.ac-kit-page .mobile-menu-header {
  display: flex;
  flex-direction: column;
  padding: calc(56px + env(safe-area-inset-top, 0px) + 8px) 20px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.ac-kit-page .mobile-menu-header span {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}

.ac-kit-page .mobile-menu-header small {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ack-orange);
}

.ac-kit-page .mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 12px;
}

.ac-kit-page .mobile-menu ul li a {
  display: block;
  padding: 13px 14px;
  margin-bottom: 4px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-left: 3px solid transparent;
  color: #e2e8f0;
  text-decoration: none;
  font-size: 0.9375rem;
}

.ac-kit-page .mobile-menu ul li:nth-child(2) a { border-left-color: var(--ack-orange); }
.ac-kit-page .mobile-menu ul li:nth-child(3) a { border-left-color: var(--ack-sky); }
.ac-kit-page .mobile-menu ul li:nth-child(4) a { border-left-color: #22c55e; }
.ac-kit-page .mobile-menu ul li:nth-child(5) a { border-left-color: #a855f7; }
.ac-kit-page .mobile-menu ul li:nth-child(6) a { border-left-color: #eab308; }
.ac-kit-page .mobile-menu ul li:nth-child(7) a { border-left-color: #ec4899; }

.ac-kit-page .mobile-menu ul li a.active {
  background: rgba(249, 115, 22, 0.18);
  color: #fff;
}

.ac-kit-page.mobile-menu-open {
  overflow: hidden;
}

/* Bottom dock (mobile) */
.ack-mobile-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 998;
  display: flex;
  justify-content: space-around;
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(249, 115, 22, 0.25);
  padding: 8px 4px calc(8px + env(safe-area-inset-bottom, 0px));
}

.ack-mobile-dock a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 0.5625rem;
  font-weight: 600;
  color: #94a3b8;
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 6px;
  min-width: 48px;
  transition: color 0.2s, background 0.2s;
}

.ack-mobile-dock a i {
  font-size: 1.125rem;
}

.ack-mobile-dock a.active,
.ack-mobile-dock a:hover {
  color: var(--ack-orange);
  background: rgba(249, 115, 22, 0.12);
}

@media (max-width: 1199px) {
  .ac-kit-page #header {
    display: none !important;
  }

  .ack-hero {
    padding-top: calc(56px + env(safe-area-inset-top, 0px) + 1.25rem);
  }

  .ac-kit-page #video-hub,
  .ac-kit-page #features,
  .ac-kit-page #dashboard,
  .ac-kit-page #hardware,
  .ac-kit-page #pricing,
  .ac-kit-page #industries {
    scroll-margin-top: calc(56px + 0.75rem);
  }

  .ac-kit-page .main {
    padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
  }

  .ack-sidenav {
    display: none !important;
  }
}

@media (min-width: 1200px) {
  .ac-kit-page .mobile-navbar {
    display: none !important;
  }

  .ack-mobile-dock {
    display: none !important;
  }
}

@media (max-width: 767px) {
  .ack-hero__inner {
    grid-template-columns: 1fr;
  }

  .ack-monitor {
    order: -1;
  }

  .ack-hero__strip span {
    flex: 1 1 50%;
    font-size: 0.5625rem;
    padding: 10px 12px;
  }

  .ack-videohub__layout {
    grid-template-columns: 1fr;
  }

  .ack-videohub__playlist {
    max-height: 220px;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 6px;
  }

  .ack-vid-item {
    flex: 0 0 200px;
  }
}