/* ============================================================
   Labória Sense™ — Pitch Website
   Design: Dark Futuristic · Neon Blue · Tech Aesthetic
   ============================================================ */

/* ---- RESET & BASE ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --black:       #0A0A0F;
  --black-soft:  #0E0E16;
  --black-card:  #13131D;
  --black-border:#1A1A2E;
  --neon:        #00D4FF;
  --neon-dim:    rgba(0, 212, 255, 0.15);
  --neon-glow:   0 0 20px rgba(0,212,255,0.6), 0 0 40px rgba(0,212,255,0.2);
  --neon-glow-sm:0 0 10px rgba(0,212,255,0.5);
  --green:       #39FF14;
  --green-dim:   rgba(57,255,20,0.12);
  --red:         #FF3860;
  --red-dim:     rgba(255,56,96,0.12);
  --white:       #F0F0F8;
  --gray:        #8A8AA8;
  --gray-dark:   #3A3A5C;
  --font-main:   'Montserrat', sans-serif;
  --font-mono:   'Roboto Mono', monospace;
  --nav-h:       68px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--black);
  color: var(--white);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: var(--neon); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; border-radius: 8px; }
ul { list-style: none; }

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--neon), var(--green));
  z-index: 9999;
  box-shadow: var(--neon-glow-sm);
  transition: width 0.1s linear;
}

/* ============================================================
   TOP NAVBAR
   ============================================================ */
.top-nav {
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  background: rgba(10, 10, 15, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--black-border);
  transition: background 0.3s;
}
.top-nav.scrolled {
  background: rgba(10, 10, 15, 0.97);
}

.nav-logo { flex-shrink: 0; }
.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--white);
}
.logo-accent { color: var(--neon); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: nowrap;
  overflow: hidden;
}
.nav-link {
  color: var(--gray);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.35rem 0.55rem;
  border-radius: 4px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.nav-link:hover, .nav-link.active {
  color: var(--neon);
  background: var(--neon-dim);
  text-decoration: none;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.btn-presentation {
  background: var(--neon-dim);
  border: 1px solid var(--neon);
  color: var(--neon);
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.btn-presentation:hover {
  background: rgba(0,212,255,0.25);
  box-shadow: var(--neon-glow-sm);
}
.btn-presentation.active {
  background: var(--neon);
  color: var(--black);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.4rem;
}

/* ============================================================
   PRESENTATION MODE
   ============================================================ */
.presentation-controls {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(10,10,15,0.95);
  border: 1px solid var(--neon);
  border-radius: 50px;
  padding: 0.6rem 1.5rem;
  box-shadow: var(--neon-glow);
}
.pres-btn {
  background: none;
  border: none;
  color: var(--neon);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  border-radius: 50%;
  transition: background 0.2s;
}
.pres-btn:hover { background: var(--neon-dim); }
.pres-counter {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--white);
  min-width: 50px;
  text-align: center;
}
.pres-exit {
  background: none;
  border: 1px solid var(--red);
  color: var(--red);
  font-size: 0.75rem;
  font-family: var(--font-main);
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.2s;
}
.pres-exit:hover { background: var(--red-dim); }

body.presentation-mode {
  overflow: hidden;
}
body.presentation-mode .section {
  display: none;
}
body.presentation-mode .section.pres-active {
  display: flex;
  min-height: 100vh;
}

/* ============================================================
   SECTIONS BASE
   ============================================================ */
.section {
  min-height: 100vh;
  padding: calc(var(--nav-h) + 3rem) 0 4rem;
  position: relative;
  display: flex;
  align-items: center;
}
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  background: var(--black-border);
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  margin-bottom: 1.2rem;
  border: 1px solid var(--gray-dark);
}
.section-tag.neon {
  color: var(--neon);
  border-color: rgba(0,212,255,0.3);
  background: var(--neon-dim);
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 2.5rem;
  color: var(--white);
}

/* Scroll animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section {
  background: radial-gradient(ellipse at 50% 40%, rgba(0,212,255,0.07) 0%, var(--black) 70%);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

#particleCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 2rem;
  opacity: 0;
  animation: heroFadeIn 1s ease 0.3s forwards;
}

@keyframes heroFadeIn {
  to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  color: var(--gray);
  background: var(--black-card);
  border: 1px solid var(--gray-dark);
  padding: 0.35rem 1rem;
  border-radius: 20px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.08em;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  color: var(--white);
  margin-bottom: 0.8rem;
}

.neon-text {
  color: var(--neon);
  text-shadow: var(--neon-glow);
}

.hero-subtitle {
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  color: var(--gray);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-bottom: 1.2rem;
}

.hero-subproducts {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.product-tag {
  background: var(--neon-dim);
  border: 1px solid rgba(0,212,255,0.4);
  color: var(--neon);
  padding: 0.4rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.product-sep {
  color: var(--gray);
  font-size: 1.2rem;
  font-weight: 300;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-style: italic;
  color: rgba(240,240,248,0.7);
  margin-bottom: 2.5rem;
  font-weight: 300;
}

/* ---- AUDIO PLAYER ---- */
.audio-player-container {
  background: var(--black-card);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 16px;
  padding: 1.2rem 1.5rem;
  margin-bottom: 1.5rem;
  text-align: left;
  box-shadow: 0 0 30px rgba(0,212,255,0.1);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.audio-player-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}
.neon-icon { color: var(--neon); font-size: 1rem; }
.audio-duration-total {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--neon);
}

.audio-player-body {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.audio-play-btn {
  width: 46px; height: 46px;
  min-width: 46px;
  border-radius: 50%;
  background: var(--neon);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--black);
  box-shadow: var(--neon-glow-sm);
  transition: transform 0.15s, box-shadow 0.2s;
}
.audio-play-btn:hover {
  transform: scale(1.08);
  box-shadow: var(--neon-glow);
}

.audio-progress-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.audio-progress-bar {
  position: relative;
  height: 5px;
  background: var(--gray-dark);
  border-radius: 3px;
  cursor: pointer;
  overflow: visible;
}
.audio-progress-fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--neon), var(--green));
  border-radius: 3px;
  pointer-events: none;
  transition: width 0.1s linear;
}
.audio-progress-thumb {
  position: absolute;
  top: 50%;
  left: 0%;
  transform: translate(-50%, -50%);
  width: 14px; height: 14px;
  background: var(--neon);
  border-radius: 50%;
  box-shadow: var(--neon-glow-sm);
  cursor: pointer;
  transition: left 0.1s linear;
}
.audio-time-info {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gray);
}

.audio-volume-wrapper {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 90px;
}
.audio-volume-wrapper i {
  color: var(--neon);
  font-size: 0.85rem;
  cursor: pointer;
}
.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 70px;
  height: 4px;
  background: var(--gray-dark);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--neon);
  cursor: pointer;
}

.btn-listen {
  background: transparent;
  border: 2px solid var(--neon);
  color: var(--neon);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  letter-spacing: 0.05em;
}
.btn-listen:hover {
  background: var(--neon-dim);
  box-shadow: var(--neon-glow);
  transform: translateY(-2px);
}
.btn-listen.playing {
  background: var(--neon);
  color: var(--black);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--gray);
  font-size: 1.2rem;
  z-index: 2;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   PROBLEM SECTION
   ============================================================ */
.problem-section {
  background: linear-gradient(180deg, var(--black) 0%, rgba(255,56,96,0.04) 50%, var(--black) 100%);
}

.accent-red { color: var(--red); }

.quote-block {
  background: var(--black-card);
  border-left: 3px solid var(--red);
  border-radius: 0 12px 12px 0;
  padding: 1.8rem 2rem;
  margin-bottom: 2.5rem;
  position: relative;
}
.quote-icon {
  color: var(--red);
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
  display: block;
  opacity: 0.7;
}
.quote-block p {
  font-size: 1.05rem;
  color: rgba(240,240,248,0.85);
  line-height: 1.8;
  margin-bottom: 0.8rem;
}
.quote-punchline {
  font-size: 1.1rem !important;
  color: var(--white) !important;
}

.problem-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.problem-card {
  background: var(--black-card);
  border: 1px solid rgba(255,56,96,0.2);
  border-radius: 12px;
  padding: 1.8rem;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.problem-card:hover {
  border-color: var(--red);
  box-shadow: 0 0 20px rgba(255,56,96,0.15);
  transform: translateY(-4px);
}
.problem-card-icon {
  width: 48px; height: 48px;
  background: var(--red-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--red);
  margin-bottom: 1rem;
}
.problem-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  color: var(--white);
}
.problem-card p {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.problem-impact {
  font-size: 0.75rem;
  color: var(--red);
  font-weight: 600;
  background: var(--red-dim);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  display: inline-block;
}

.problem-image { margin-top: 1rem; }
.section-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--black-border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}
.arch-img { max-height: 420px; object-fit: cover; }
.img-caption {
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 0.8rem;
  font-style: italic;
}

/* ============================================================
   SOLUTION SECTION
   ============================================================ */
.solution-section {
  background: var(--black-soft);
}
.solution-lead {
  font-size: 1.15rem;
  color: rgba(240,240,248,0.9);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  border-left: 3px solid var(--neon);
  padding-left: 1.2rem;
}

.solution-layers {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 3rem;
  max-width: 700px;
}
.layer-item {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  transition: border-color 0.3s;
}
.layer-item:hover { border-color: var(--neon); }
.layer-1 { border-left: 3px solid var(--neon); }
.layer-2 { border-left: 3px solid var(--green); }
.layer-3 { border-left: 3px solid #9B59B6; }
.layer-icon {
  width: 44px; height: 44px;
  min-width: 44px;
  background: var(--neon-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--neon);
}
.layer-2 .layer-icon { background: rgba(57,255,20,0.1); color: var(--green); }
.layer-3 .layer-icon { background: rgba(155,89,182,0.1); color: #9B59B6; }
.layer-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.layer-content p { font-size: 0.82rem; color: var(--gray); }

.layer-arrow {
  text-align: left;
  padding-left: 1.5rem;
  color: var(--gray-dark);
  font-size: 0.9rem;
  padding-top: 0.2rem;
  padding-bottom: 0.2rem;
}

.solution-image { margin: 2.5rem 0; }
.big-quote {
  text-align: center;
  font-size: clamp(1.3rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

/* ============================================================
   DEVICES SECTION
   ============================================================ */
.devices-section {
  background: var(--black);
}
.devices-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}
.device-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 16px;
  padding: 1.8rem;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.device-card:hover {
  border-color: var(--neon);
  box-shadow: 0 0 30px rgba(0,212,255,0.12);
  transform: translateY(-4px);
}
.device-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.2rem;
}
.device-icon-wrap {
  width: 50px; height: 50px;
  background: var(--neon-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--neon);
  flex-shrink: 0;
}
.vision-icon { background: rgba(155,89,182,0.15); color: #9B59B6; }
.device-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--neon);
}
.device-sub { font-size: 0.8rem; color: var(--gray); }

.device-image-wrap {
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 1.2rem;
  border: 1px solid var(--black-border);
}
.device-image-wrap img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.4s;
  border-radius: 0;
}
.device-card:hover .device-image-wrap img {
  transform: scale(1.04);
}

.device-specs li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: rgba(240,240,248,0.8);
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.device-specs li:last-child { border-bottom: none; }
.device-specs li i {
  width: 16px;
  color: var(--neon);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.device-cost {
  margin-top: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--neon-dim);
  border-radius: 8px;
  padding: 0.6rem 1rem;
}
.cost-label { font-size: 0.75rem; color: var(--gray); }
.cost-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--neon);
  font-family: var(--font-mono);
}

.pcb-section { margin-bottom: 2rem; }
.pcb-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.pcb-img { max-height: 350px; object-fit: cover; }

.total-cost-box {
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(57,255,20,0.05));
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 16px;
  padding: 1.8rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.cost-box-icon {
  font-size: 2.5rem;
  color: var(--neon);
  flex-shrink: 0;
}
.cost-box-icon i { text-shadow: var(--neon-glow); }
.total-cost-box h4 { font-size: 1rem; color: var(--gray); margin-bottom: 0.4rem; }
.cost-total-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--neon);
  font-family: var(--font-mono);
  text-shadow: var(--neon-glow);
}
.cost-note { font-size: 0.82rem; color: var(--gray); margin-top: 0.3rem; }

/* ============================================================
   USE CASES SECTION
   ============================================================ */
.usecases-section {
  background: var(--black-soft);
}
.usecases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.usecase-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 14px;
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.usecase-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--green));
  opacity: 0;
  transition: opacity 0.3s;
}
.usecase-card:hover::before { opacity: 1; }
.usecase-card:hover {
  border-color: rgba(0,212,255,0.4);
  box-shadow: 0 0 25px rgba(0,212,255,0.1);
  transform: translateY(-4px);
}
.uc-number {
  position: absolute;
  top: 1.2rem; right: 1.5rem;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 900;
  color: rgba(0,212,255,0.08);
  line-height: 1;
}
.uc-icon {
  width: 44px; height: 44px;
  background: var(--neon-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--neon);
  margin-bottom: 0.8rem;
}
.usecase-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}
.uc-flow {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.flow-step {
  font-size: 0.72rem;
  background: var(--black-border);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  color: var(--gray);
  white-space: nowrap;
}
.flow-step.accent {
  background: var(--neon-dim);
  color: var(--neon);
}
.flow-arrow { color: var(--gray-dark); font-size: 0.65rem; }
.uc-desc {
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.uc-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--green);
  background: var(--green-dim);
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
}

.flow-full { margin-top: 1rem; }
.flow-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
  text-align: center;
}
.full-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 14px;
  padding: 1.5rem;
}
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  background: var(--black);
  border: 1px solid var(--gray-dark);
  border-radius: 10px;
  min-width: 80px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--gray);
  transition: border-color 0.3s, color 0.3s;
}
.flow-node i { font-size: 1.2rem; color: var(--gray); }
.flow-node:hover, .flow-node.neon-node {
  border-color: var(--neon);
  color: var(--neon);
}
.flow-node:hover i, .flow-node.neon-node i { color: var(--neon); }
.neon-node { box-shadow: 0 0 15px rgba(0,212,255,0.2); }
.flow-connector { color: var(--gray-dark); font-size: 0.85rem; }

/* ============================================================
   PATENT SECTION
   ============================================================ */
.patent-section {
  background: var(--black);
}
.patent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.patent-title-box {
  background: var(--black-card);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.patent-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--neon);
  background: var(--neon-dim);
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  margin-bottom: 0.8rem;
}
.patent-title-box h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  font-style: italic;
  line-height: 1.6;
}

.claims-list h4, .ip-strategy h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--neon);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.claim-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.claim-item:last-child { border-bottom: none; }
.claim-num {
  width: 28px; height: 28px;
  min-width: 28px;
  background: var(--neon-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--neon);
  flex-shrink: 0;
}
.claim-item p { font-size: 0.85rem; color: var(--gray); line-height: 1.6; }

.ip-strategy { margin-top: 1.5rem; }
.ip-items { display: flex; flex-direction: column; gap: 0.6rem; }
.ip-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.85rem;
  color: var(--gray);
}
.ip-item i { color: var(--neon); width: 16px; }

.patent-img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(0,212,255,0.2);
  box-shadow: 0 0 30px rgba(0,212,255,0.1);
}

/* ============================================================
   MARKET SECTION
   ============================================================ */
.market-section {
  background: radial-gradient(ellipse at 50% 50%, rgba(0,212,255,0.04) 0%, var(--black) 70%);
  overflow: hidden;
}
#gridCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: 0.3;
}

.market-metrics {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.metric-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: border-color 0.3s, transform 0.3s;
}
.metric-card:hover {
  border-color: var(--neon);
  transform: translateY(-4px);
}
.featured-metric {
  border-color: rgba(0,212,255,0.4);
  background: linear-gradient(135deg, rgba(0,212,255,0.06), var(--black-card));
  box-shadow: 0 0 30px rgba(0,212,255,0.15);
}
.metric-icon {
  font-size: 1.8rem;
  color: var(--neon);
  margin-bottom: 1rem;
}
.metric-number {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  color: var(--neon);
  font-family: var(--font-mono);
  text-shadow: var(--neon-glow);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.metric-label {
  font-size: 0.88rem;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.metric-sub { font-size: 0.75rem; color: var(--gray); }

.market-drivers h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.drivers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.driver-item {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 12px;
  padding: 1.3rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: border-color 0.3s;
}
.driver-item:hover { border-color: var(--neon); }
.driver-icon {
  width: 40px; height: 40px;
  min-width: 40px;
  background: var(--neon-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--neon);
}
.driver-item h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.3rem; }
.driver-item p { font-size: 0.8rem; color: var(--gray); line-height: 1.6; }

/* ============================================================
   BUSINESS SECTION
   ============================================================ */
.business-section { background: var(--black-soft); }

.business-models {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  margin-bottom: 3rem;
}
.biz-card {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 14px;
  padding: 1.5rem;
  text-align: center;
  position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.biz-card:hover {
  border-color: var(--neon);
  transform: translateY(-4px);
}
.featured-biz {
  border-color: rgba(0,212,255,0.4);
  background: linear-gradient(180deg, rgba(0,212,255,0.08), var(--black-card));
}
.biz-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--neon);
  color: var(--black);
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.25rem 0.7rem;
  border-radius: 20px;
  white-space: nowrap;
}
.biz-icon {
  font-size: 1.8rem;
  color: var(--neon);
  margin-bottom: 0.8rem;
  margin-top: 0.5rem;
}
.biz-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.biz-card p {
  font-size: 0.78rem;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 0.8rem;
}
.biz-price {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--neon);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}
.biz-price span { font-size: 0.7rem; font-weight: 400; color: var(--gray); }
.biz-tag {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--green);
  background: var(--green-dim);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  display: inline-block;
}

.funding-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.funding-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}
.fund-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  font-size: 0.8rem;
  color: var(--gray);
}
.fund-badge {
  background: var(--neon-dim);
  color: var(--neon);
  font-weight: 700;
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  white-space: nowrap;
}

/* ============================================================
   ROADMAP SECTION
   ============================================================ */
.roadmap-section { background: var(--black); }

.roadmap-timeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  overflow-x: auto;
  padding-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
}
.roadmap-phase {
  background: var(--black-card);
  border: 1px solid var(--black-border);
  border-radius: 14px;
  padding: 1.5rem;
  min-width: 190px;
  flex: 1;
  transition: border-color 0.3s, transform 0.3s;
}
.roadmap-phase:hover {
  border-color: var(--neon);
  transform: translateY(-4px);
}
.phase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
}
.phase-badge {
  background: var(--neon-dim);
  color: var(--neon);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}
.phase-period {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--gray);
}
.phase-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 1rem;
}
.phase-items li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--gray);
  padding: 0.25rem 0;
}
.phase-items li i {
  color: var(--green);
  font-size: 0.65rem;
  margin-top: 0.3rem;
  flex-shrink: 0;
}
.phase-kpi {
  margin-top: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--neon);
  background: var(--neon-dim);
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-family: var(--font-mono);
}

.phase-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  color: var(--gray-dark);
  font-size: 1rem;
  align-self: center;
  flex-shrink: 0;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  background: radial-gradient(ellipse at 50% 50%, rgba(0,212,255,0.08) 0%, var(--black) 70%);
  overflow: hidden;
}
#ctaCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
}
.cta-big-quote {
  margin: 2rem 0;
  line-height: 1.4;
}
.cta-big-quote p {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: rgba(240,240,248,0.7);
  font-weight: 300;
}
.cta-highlight {
  font-size: clamp(2rem, 5vw, 3.5rem) !important;
  font-weight: 900 !important;
  color: var(--white) !important;
}
.cta-mega {
  font-size: clamp(1.5rem, 3vw, 2rem) !important;
  font-weight: 800 !important;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2.5rem 0;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.85rem 1.8rem;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.03em;
  text-decoration: none;
}
.btn-cta:hover { transform: translateY(-3px); text-decoration: none; }

.btn-primary {
  background: var(--neon);
  color: var(--black);
  border: none;
  box-shadow: var(--neon-glow-sm);
}
.btn-primary:hover { box-shadow: var(--neon-glow); color: var(--black); }

.btn-secondary {
  background: var(--black-card);
  color: var(--neon);
  border: 1px solid var(--neon);
}
.btn-secondary:hover { background: var(--neon-dim); }

.btn-outline {
  background: transparent;
  color: var(--gray);
  border: 1px solid var(--gray-dark);
}
.btn-outline:hover { border-color: var(--neon); color: var(--neon); background: var(--neon-dim); }

.next-steps-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.ns-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--gray);
  background: var(--black-card);
  border: 1px solid var(--black-border);
  padding: 0.55rem 1rem;
  border-radius: 8px;
}
.ns-item i { color: var(--neon); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--black-soft);
  border-top: 1px solid var(--black-border);
  padding: 2.5rem 2rem;
  text-align: center;
}
.footer-content { max-width: 800px; margin: 0 auto; }
.footer-logo {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 0.8rem;
}
.footer-text {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 0.8rem;
}
.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--neon); text-decoration: none; }
.footer-sep { color: var(--gray-dark); }
.footer-powered {
  font-size: 0.72rem;
  color: var(--gray-dark);
  font-family: var(--font-mono);
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: var(--black-card);
  border: 1px solid var(--neon);
  border-radius: 50%;
  color: var(--neon);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, box-shadow 0.2s;
  box-shadow: var(--neon-glow-sm);
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover {
  box-shadow: var(--neon-glow);
  background: var(--neon-dim);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .business-models {
    grid-template-columns: 1fr 1fr;
  }
  .roadmap-timeline {
    gap: 0.5rem;
  }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(10,10,15,0.98);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--black-border);
    gap: 0.3rem;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 0.9rem; padding: 0.5rem 0.8rem; }
  .nav-toggle { display: block; }
  .btn-presentation { display: none; }

  .problem-cards { grid-template-columns: 1fr; }
  .devices-grid { grid-template-columns: 1fr; }
  .usecases-grid { grid-template-columns: 1fr; }
  .patent-grid { grid-template-columns: 1fr; }
  .market-metrics { grid-template-columns: 1fr; }
  .drivers-grid { grid-template-columns: 1fr; }
  .business-models { grid-template-columns: 1fr 1fr; }
  .funding-grid { grid-template-columns: 1fr; }

  .roadmap-timeline {
    flex-direction: column;
    overflow-x: visible;
  }
  .phase-connector { transform: rotate(90deg); padding: 0.3rem 0; }

  .hero-title { letter-spacing: -1px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .btn-cta { justify-content: center; }

  .audio-volume-wrapper { display: none; }
  .total-cost-box { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .business-models { grid-template-columns: 1fr; }
  .hero-subproducts { flex-direction: column; }
  .product-sep { display: none; }
  .full-flow-diagram { flex-direction: column; }
  .flow-connector { transform: rotate(90deg); }
}