/* ============================================
   Self-hosted Inter font (SIL Open Font License)
   ============================================ */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/inter-latin.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('fonts/inter-latin-500.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('fonts/inter-latin-600.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('fonts/inter-latin-700.woff2') format('woff2');
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #090b0a;
    color: #e0e0e0;
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'cv11', 'ss01', 'ss03';
}

::selection {
    background: rgba(78, 236, 163, 0.25);
    color: #e8fff6;
}

/* Subtle atmospheric background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 30%, rgba(78, 236, 163, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 70%, rgba(78, 236, 163, 0.03) 0%, transparent 60%),
        radial-gradient(ellipse 40% 30% at 50% 100%, rgba(78, 236, 163, 0.025) 0%, transparent 70%);
    pointer-events: none;
    z-index: -2;
}

/* ============================================
   Scroll Progress Bar
   ============================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    width: 0;
    background: linear-gradient(90deg, #4ECCA3, #7af5c8);
    z-index: 1001;
    box-shadow: 0 0 10px rgba(78, 236, 163, 0.5);
    transition: width 0.1s ease-out;
}

/* ============================================
   Cursor Spotlight (follows mouse)
   ============================================ */
.cursor-spotlight {
    position: fixed;
    top: 0;
    left: 0;
    width: 600px;
    height: 600px;
    pointer-events: none;
    z-index: -1;
    background: radial-gradient(circle, rgba(78, 236, 163, 0.08) 0%, rgba(78, 236, 163, 0.03) 30%, transparent 65%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.6s ease;
    will-change: transform;
    mix-blend-mode: screen;
}

.cursor-spotlight.active {
    opacity: 1;
}

@media (max-width: 1024px) {
    .cursor-spotlight { display: none; }
}

/* ============================================
   Animated Gradient Orbs (floating background)
   ============================================ */
.gradient-orbs {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -2;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    will-change: transform;
}

.orb-1 {
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(78, 236, 163, 0.18) 0%, transparent 70%);
    top: -10%;
    left: -8%;
    animation: orbFloat1 22s ease-in-out infinite;
}

.orb-2 {
    width: 620px;
    height: 620px;
    background: radial-gradient(circle, rgba(78, 236, 163, 0.1) 0%, transparent 70%);
    top: 40%;
    right: -12%;
    animation: orbFloat2 28s ease-in-out infinite;
}

.orb-3 {
    width: 440px;
    height: 440px;
    background: radial-gradient(circle, rgba(122, 245, 200, 0.08) 0%, transparent 70%);
    bottom: -5%;
    left: 40%;
    animation: orbFloat3 32s ease-in-out infinite;
}

@keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(80px, 60px) scale(1.08); }
    66% { transform: translate(-50px, 100px) scale(0.95); }
}

@keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(-100px, -60px) scale(1.05); }
    66% { transform: translate(60px, -80px) scale(0.95); }
}

@keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-120px, -40px) scale(1.12); }
}

@media (max-width: 768px) {
    .orb { opacity: 0.35; filter: blur(60px); }
    .orb-1 { width: 360px; height: 360px; }
    .orb-2 { width: 420px; height: 420px; }
    .orb-3 { width: 320px; height: 320px; }
}

/* Subtle dot grid pattern overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle, rgba(78, 236, 163, 0.035) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: -1;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 90%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 0%, transparent 90%);
}

/* ============================================
   Navigation
   ============================================ */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(9, 11, 10, 0.6);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.scrolled {
    padding: 0.85rem 5%;
    background: rgba(9, 11, 10, 0.85);
    border-bottom: 1px solid rgba(78, 236, 163, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-logo-container a {
    display: flex;
    align-items: center;
}

.nav-logo {
    height: 28px;
    transition: transform 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
}

.nav-brand {
    height: 22px;
    filter: invert(1) brightness(1.1);
    transition: opacity 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: #c0c0c0;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
    letter-spacing: 0.01em;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #4ECCA3;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #4ECCA3;
}

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

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #e0e0e0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 92vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem 5% 5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 900px;
    height: 900px;
    max-width: 90vw;
    max-height: 90vw;
    background: radial-gradient(circle, rgba(78, 236, 163, 0.08) 0%, rgba(78, 236, 163, 0.02) 35%, transparent 65%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
    animation: heroGlow 8s ease-in-out infinite alternate;
}

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

@keyframes heroGlow {
    0% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
}

.logo-container {
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.brand-name {
    max-width: 420px;
    width: 100%;
    height: auto;
    filter: invert(1) brightness(1.3);
}

.hero-text {
    max-width: 700px;
    text-align: center;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-text h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 600;
    margin-bottom: 1.75rem;
    background: linear-gradient(135deg, #ffffff 0%, #c8f5e0 40%, #4ECCA3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
    line-height: 1.15;
}

.hero-text p {
    font-size: 1.1rem;
    color: #9a9a9a;
    margin-bottom: 3rem;
    line-height: 1.85;
}

.cta-buttons {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    justify-content: center;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.75rem;
    background: linear-gradient(135deg, #4ECCA3, #3dba8f);
    color: #090b0a;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(78, 236, 163, 0.25), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #5efdb8, #4ECCA3);
    transition: left 0.5s ease;
}

.cta-button span {
    position: relative;
    z-index: 1;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(78, 236, 163, 0.35);
}

.cta-button:hover::before {
    left: 0;
}

.cta-secondary {
    display: inline-block;
    padding: 1rem 2.75rem;
    background: transparent;
    color: #4ECCA3;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1.5px solid rgba(78, 236, 163, 0.4);
}

.cta-secondary:hover {
    background: rgba(78, 236, 163, 0.08);
    transform: translateY(-2px);
    border-color: rgba(78, 236, 163, 0.7);
    box-shadow: 0 8px 24px rgba(78, 236, 163, 0.15);
}

/* ============================================
   Section Titles
   ============================================ */
.section-title {
    text-align: center;
    font-size: clamp(1.75rem, 3.2vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: #e8e8e8;
    letter-spacing: -0.025em;
    line-height: 1.2;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #4ECCA3, transparent);
    margin: 1.25rem auto 0;
    border-radius: 2px;
}

.section-title + .features-grid,
.section-title + .research-intro {
    margin-top: 4rem;
}

/* ============================================
   Products / Solutions Section
   ============================================ */
.products {
    padding: 8rem 5%;
    background: #090b0a;
}

.product-card {
    padding: 2.75rem 2.25rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.005) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 18px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(78, 236, 163, 0.35), transparent 40%, transparent 60%, rgba(78, 236, 163, 0.15));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.product-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(78, 236, 163, 0.08) 0%, transparent 40%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(78, 236, 163, 0.25);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 40px rgba(78, 236, 163, 0.08);
}

.product-card:hover::before,
.product-card:hover::after {
    opacity: 1;
}

.product-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #4ECCA3, #3dba8f);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.75rem;
    color: #090b0a;
    box-shadow: 0 8px 24px rgba(78, 236, 163, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.25);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.product-card:hover .product-icon {
    transform: scale(1.08) rotate(-3deg);
    box-shadow: 0 12px 32px rgba(78, 236, 163, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.product-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: #e8e8e8;
    font-weight: 600;
}

.product-card p {
    color: #9a9a9a;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.product-cta {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: transparent;
    color: #4ECCA3;
    text-decoration: none;
    border-radius: 30px;
    border: 1px solid rgba(78, 236, 163, 0.25);
    font-weight: 500;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.product-cta:hover {
    background: rgba(78, 236, 163, 0.1);
    border-color: rgba(78, 236, 163, 0.5);
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: 8rem 5%;
    background: #0d0f0e;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    padding: 2.75rem 2.25rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.005) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 18px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #4ECCA3, transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(78, 236, 163, 0.25);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 40px rgba(78, 236, 163, 0.06);
}

.feature-card:hover::before {
    transform: translateX(0);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #4ECCA3, #3dba8f);
    border-radius: 14px;
    margin-bottom: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #090b0a;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 24px rgba(78, 236, 163, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.feature-card:hover .feature-icon {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(78, 236, 163, 0.25);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: #e8e8e8;
    font-weight: 600;
}

.feature-card p {
    color: #9a9a9a;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ============================================
   Content / About Section
   ============================================ */
.content {
    padding: 8rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.content-grid:last-child {
    margin-bottom: 0;
}

.content-text h3 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #4ECCA3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.content-text p {
    color: #9a9a9a;
    line-height: 1.85;
    margin-bottom: 1.1rem;
    font-size: 1rem;
}

/* Visual grid (replaces empty placeholder) */
.content-visual {
    width: 100%;
}

.visual-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.visual-item {
    padding: 1.75rem 1rem;
    background: linear-gradient(180deg, rgba(78, 236, 163, 0.06) 0%, rgba(78, 236, 163, 0.02) 100%);
    border: 1px solid rgba(78, 236, 163, 0.12);
    border-radius: 14px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.visual-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(78, 236, 163, 0.1), transparent);
    transition: left 0.6s ease;
}

.visual-item:hover {
    border-color: rgba(78, 236, 163, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(78, 236, 163, 0.1);
}

.visual-item:hover::before {
    left: 100%;
}

.visual-label {
    color: #4ECCA3;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.03em;
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-item {
    padding: 2rem 1.5rem;
    background: linear-gradient(180deg, rgba(78, 236, 163, 0.05) 0%, rgba(78, 236, 163, 0.015) 100%);
    border: 1px solid rgba(78, 236, 163, 0.1);
    border-radius: 14px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item:hover {
    border-color: rgba(78, 236, 163, 0.35);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(78, 236, 163, 0.08);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #4ECCA3 0%, #7af5c8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.35rem;
    letter-spacing: -0.02em;
}

.stat-desc {
    color: #808080;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Research Section
   ============================================ */
.research {
    padding: 8rem 5%;
    background: #0d0f0e;
}

.research-intro {
    max-width: 720px;
    margin: 0 auto 3.5rem;
    text-align: center;
}

.research-intro p {
    color: #9a9a9a;
    font-size: 1.05rem;
    line-height: 1.8;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 4rem;
}

.research-card {
    padding: 2.5rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.005) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 18px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.research-card:hover {
    border-color: rgba(78, 236, 163, 0.25);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35), 0 0 32px rgba(78, 236, 163, 0.06);
}

.research-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(78, 236, 163, 0.1);
    color: #4ECCA3;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.research-card h4 {
    color: #e8e8e8;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.research-card .authors {
    color: #707070;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.research-card p {
    color: #9a9a9a;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.research-link {
    color: #4ECCA3;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.research-link:hover {
    color: #7af5c8;
}

.collaboration-cta {
    max-width: 720px;
    margin: 0 auto;
    padding: 3rem 2.5rem;
    background: linear-gradient(180deg, rgba(78, 236, 163, 0.06) 0%, rgba(78, 236, 163, 0.015) 100%);
    border: 1px solid rgba(78, 236, 163, 0.18);
    border-radius: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.collaboration-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    width: 600px;
    height: 300px;
    transform: translateX(-50%);
    background: radial-gradient(ellipse, rgba(78, 236, 163, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.collaboration-cta > * {
    position: relative;
}

.collaboration-cta h3 {
    color: #e8e8e8;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.collaboration-cta p {
    color: #9a9a9a;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.collaboration-cta a {
    display: inline-block;
    padding: 0.85rem 2.25rem;
    background: #4ECCA3;
    color: #090b0a;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.collaboration-cta a:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(78, 236, 163, 0.25);
}

/* ============================================
   Demo / Contact Section
   ============================================ */
.demo-section {
    padding: 8rem 5%;
    background: #090b0a;
}

.demo-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 4rem 3.25rem;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
    border: 1px solid rgba(78, 236, 163, 0.15);
    border-radius: 24px;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35), 0 0 80px rgba(78, 236, 163, 0.04);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.demo-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(78, 236, 163, 0.4), transparent 30%, transparent 70%, rgba(78, 236, 163, 0.2));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.demo-container h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
    color: #e8e8e8;
    font-weight: 700;
}

.demo-container .subtitle {
    text-align: center;
    color: #9a9a9a;
    font-size: 1rem;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.demo-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    color: #c0c0c0;
    font-weight: 500;
    font-size: 0.85rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.95rem 1.1rem;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    color: #e8e8e8;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%234ECCA3' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group select option {
    background: #1a1a1a;
    color: #e0e0e0;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: rgba(78, 236, 163, 0.4);
    background: rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 0 3px rgba(78, 236, 163, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #555;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* Honeypot — visually hidden but still in tab order trap for bots */
.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

/* Math captcha */
.captcha-group {
    max-width: 260px;
}

.captcha-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.captcha-group #captcha-question {
    color: #4ECCA3;
    font-weight: 600;
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.9rem;
}

/* Consent checkbox */
.form-consent {
    margin-top: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.82rem;
    color: #808080;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    accent-color: #4ECCA3;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.checkbox-label a {
    color: #4ECCA3;
    text-decoration: none;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.submit-button {
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #4ECCA3, #3dba8f);
    color: #090b0a;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.4s ease;
    margin-top: 0.5rem;
    font-family: inherit;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(78, 236, 163, 0.3);
}

.submit-button:active {
    transform: translateY(0);
}

.form-message {
    text-align: center;
    font-size: 0.9rem;
    padding: 0.5rem;
    border-radius: 8px;
    min-height: 1.5rem;
}

.form-message.success {
    color: #4ECCA3;
    background: rgba(78, 236, 163, 0.08);
}

.form-message.error {
    color: #f87171;
    background: rgba(248, 113, 113, 0.08);
}

/* ============================================
   Footer
   ============================================ */
footer {
    background: #070908;
    border-top: 1px solid rgba(78, 236, 163, 0.08);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(78, 236, 163, 0.4), transparent);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 5% 3rem;
    gap: 3rem;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    max-width: 200px;
    margin-bottom: 1rem;
    opacity: 0.7;
    filter: invert(1) brightness(1.1);
}

.footer-tagline {
    color: #606060;
    font-size: 0.85rem;
    line-height: 1.5;
}

.footer-links-group {
    display: flex;
    gap: 4rem;
}

.footer-col h4 {
    color: #a0a0a0;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col ul a {
    color: #707070;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-col ul a:hover {
    color: #4ECCA3;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem 5%;
}

.footer-bottom-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: #505050;
    font-size: 0.8rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: #606060;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.social-links a:hover {
    color: #4ECCA3;
    transform: translateY(-2px);
}

.footer-disclaimer {
    width: 100%;
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.7rem !important;
    color: #404040 !important;
    line-height: 1.5;
}

/* ============================================
   Privacy Section
   ============================================ */
.privacy-section {
    padding: 6rem 5%;
    background: #090b0a;
    border-top: 1px solid rgba(78, 236, 163, 0.06);
}

.privacy-container {
    max-width: 720px;
    margin: 0 auto;
}

.privacy-container h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #e8e8e8;
    margin-bottom: 2.5rem;
}

.privacy-content h4 {
    color: #c0c0c0;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

.privacy-content h4:first-child {
    margin-top: 0;
}

.privacy-content p {
    color: #808080;
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.privacy-content a {
    color: #4ECCA3;
    text-decoration: none;
}

.privacy-content a:hover {
    text-decoration: underline;
}

.privacy-updated {
    margin-top: 2rem !important;
    font-size: 0.8rem !important;
    color: #505050 !important;
    font-style: italic;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.features-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.features-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 42px;
    border: 1.5px solid rgba(78, 236, 163, 0.2);
    border-radius: 16px;
    animation: scrollBounce 2s infinite;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 7px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: #4ECCA3;
    border-radius: 50%;
    animation: scrollDot 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

@keyframes scrollDot {
    0% { opacity: 1; top: 7px; }
    100% { opacity: 0; top: 26px; }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
    .footer-inner {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }

    .footer-links-group {
        gap: 2.5rem;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .content-grid.reverse .content-visual {
        order: 2;
    }
}

@media (max-width: 1024px) {
    .products,
    .features,
    .content,
    .research,
    .demo-section {
        padding: 6rem 5%;
    }

    .nav-links {
        gap: 1.75rem;
    }
}

@media (max-width: 768px) {
    nav {
        padding: 1rem 5%;
    }

    /* Mobile hamburger menu */
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        max-width: 85vw;
        height: 100vh;
        background: rgba(9, 11, 10, 0.98);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        flex-direction: column;
        padding: 5.5rem 2rem 2rem;
        gap: 0;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-left: 1px solid rgba(78, 236, 163, 0.08);
        box-shadow: -20px 0 60px rgba(0, 0, 0, 0.4);
    }

    .nav-links.nav-open {
        right: 0;
    }

    .nav-links a {
        font-size: 1.05rem;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        display: block;
    }

    .nav-toggle[aria-expanded="true"] span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle[aria-expanded="true"] span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        min-height: 80vh;
        padding: 7rem 5% 4rem;
    }

    .logo-container {
        margin-bottom: 2rem;
    }

    .brand-name {
        max-width: 260px;
    }

    .hero-text p {
        font-size: 1rem;
        margin-bottom: 2.25rem;
    }

    .products,
    .features,
    .content,
    .research,
    .demo-section {
        padding: 5rem 5%;
    }

    .features-grid,
    .research-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .product-card,
    .feature-card,
    .research-card {
        padding: 2.25rem 1.75rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .demo-container {
        padding: 2.5rem 1.75rem;
        border-radius: 20px;
    }

    .demo-container h2 {
        font-size: 1.75rem;
    }

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

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .stat-number {
        font-size: 1.65rem;
    }

    .stat-item {
        padding: 1.5rem 1rem;
    }

    .footer-links-group {
        flex-direction: column;
        gap: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .cta-button,
    .cta-secondary {
        text-align: center;
        width: 100%;
    }

    .pilot-section {
        padding: 4rem 5%;
    }

    .pilot-section h2 {
        font-size: 1.65rem;
    }

    .pilot-ideal {
        padding: 1.25rem 1.25rem;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .brand-name {
        max-width: 220px;
    }

    .hero-text h1 {
        font-size: 1.5rem;
    }

    .demo-container {
        padding: 2rem 1.25rem;
    }

    .form-group input,
    .form-group textarea,
    .form-group select {
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
}

@media (max-width: 400px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .visual-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}


/* Pilot Program Section */
.pilot-section {
    padding: 7rem 5%;
    text-align: center;
    background: linear-gradient(180deg, rgba(78, 236, 163, 0.04) 0%, rgba(78, 236, 163, 0.01) 100%);
    border-top: 1px solid rgba(78, 236, 163, 0.1);
    border-bottom: 1px solid rgba(78, 236, 163, 0.1);
    position: relative;
    overflow: hidden;
}

.pilot-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 500px;
    max-width: 100vw;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse, rgba(78, 236, 163, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.pilot-container {
    position: relative;
}

.pilot-container {
    max-width: 700px;
    margin: 0 auto;
}

.pilot-badge {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #4ECCA3;
    border: 1px solid rgba(78, 236, 163, 0.3);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    background: rgba(78, 236, 163, 0.06);
}

.pilot-section h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #c8f5e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

.pilot-section > .pilot-container > p {
    color: #808080;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.pilot-ideal {
    text-align: left;
    padding: 1.5rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: 2rem;
}

.pilot-ideal h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 1rem;
}

.pilot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pilot-tags span {
    font-size: 0.82rem;
    padding: 0.4rem 1rem;
    border-radius: 8px;
    background: rgba(78, 236, 163, 0.06);
    border: 1px solid rgba(78, 236, 163, 0.12);
    color: #a0a0a0;
}

/* ============================================
   Privacy Page (standalone)
   ============================================ */
.privacy-page {
    padding: 8rem 5% 5rem;
    background: #090b0a;
    min-height: 100vh;
}

.privacy-page .privacy-container {
    max-width: 760px;
    margin: 0 auto;
}

.privacy-page h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #e8e8e8;
    margin-bottom: 0.5rem;
}

.privacy-effective {
    color: #606060;
    font-size: 0.9rem;
    margin-bottom: 3rem;
    font-style: italic;
}

.privacy-page .privacy-content h3 {
    color: #4ECCA3;
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(78, 236, 163, 0.08);
}

.privacy-page .privacy-content h3:first-child {
    margin-top: 0;
}

.privacy-page .privacy-content h4 {
    color: #c0c0c0;
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.privacy-page .privacy-content p {
    color: #9a9a9a;
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.privacy-page .privacy-content ul {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 1rem;
}

.privacy-page .privacy-content ul li {
    color: #9a9a9a;
    font-size: 0.95rem;
    line-height: 1.8;
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.35rem;
}

.privacy-page .privacy-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(78, 236, 163, 0.4);
}

.privacy-page .privacy-content ul li strong {
    color: #c0c0c0;
}

.privacy-contact {
    padding: 1.5rem 2rem;
    background: rgba(78, 236, 163, 0.04);
    border: 1px solid rgba(78, 236, 163, 0.1);
    border-radius: 12px;
    margin: 1rem 0;
}

.privacy-contact p {
    margin-bottom: 0.35rem !important;
}

/* Footer mini links (privacy page) */
.footer-mini-links {
    display: flex;
    gap: 1.5rem;
}

.footer-mini-links a {
    color: #606060;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-mini-links a:hover {
    color: #4ECCA3;
}