/* --- Brand Variables (Global) --- */
:root {
    --lumi-bg: #E0E5EC;
    --lumi-fg: #3D4852;
    --lumi-muted: #6B7280;
    --lumi-accent: #1E50A0;
    --lumi-shadow-ext: 9px 9px 16px rgb(163,177,198,0.6), -9px -9px 16px rgba(255,255,255,0.5);
    --lumi-shadow-ext-hover: 12px 12px 20px rgb(163,177,198,0.7), -12px -12px 20px rgba(255,255,255,0.6);
    --lumi-shadow-inset: inset 10px 10px 20px rgb(163,177,198,0.7), inset -10px -10px 20px rgba(255,255,255,0.6);
    --lumi-shadow-inset-sm: inset 4px 4px 8px rgb(163,177,198,0.5), inset -4px -4px 8px rgba(255,255,255,0.5);
    --lumi-radius-lg: 32px;
    --lumi-radius-md: 16px;
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'DM Sans', sans-serif;
}

/* Reset & base */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--font-body);
    background-color: var(--lumi-bg);
    color: var(--lumi-fg);
    direction: ltr;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; padding: 0; margin: 0; }

/* ======== HEADER ======== */
.nexus-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 9999;
    direction: ltr;
    box-sizing: border-box;
    background: linear-gradient(to bottom, rgba(224, 229, 236, 0.95) 0%, rgba(224, 229, 236, 0) 100%);
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
.nexus-header.scrolled {
    background: rgba(224, 229, 236, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 16px rgb(163,177,198,0.4);
}
.header-logo {
    display: flex;
    align-items: center;
    z-index: 10001;
}
.logo-text {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--lumi-fg);
    letter-spacing: -0.5px;
    transition: color 0.3s;
}
.menu-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10001;
    background: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}
.menu-text {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--lumi-fg);
    transition: color 0.3s;
}
.hamburger-lines {
    width: 30px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.line {
    width: 100%;
    height: 2px;
    background-color: var(--lumi-fg);
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    border-radius: 2px;
}
.menu-open .line:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); background-color: var(--lumi-accent); }
.menu-open .line:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.menu-open .line:nth-child(3) { transform: rotate(-45deg) translate(5px, -7px); background-color: var(--lumi-accent); }
.menu-open .menu-text { color: var(--lumi-accent); }

/* ======== FULLSCREEN MENU ======== */
.fullscreen-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--lumi-bg);
    z-index: 9998;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    visibility: hidden;
    clip-path: circle(0% at 95% 5%);
    direction: ltr;
}
.menu-bg-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(30, 80, 160, 0.04) 0%, transparent 70%);
    pointer-events: none;
}
.nav-links {
    text-align: center;
    position: relative;
    z-index: 2;
}
.nav-item {
    margin: 15px 0;
    overflow: hidden;
}
.nav-link {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 300;
    color: var(--lumi-fg);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: -1px;
    transition: all 0.4s ease;
    transform: translateY(100%);
}
.nav-link:hover {
    color: var(--lumi-accent);
    transform: translateX(10px);
    font-weight: 500;
}
.menu-footer {
    position: absolute;
    bottom: 50px;
    display: flex;
    gap: 40px;
    color: var(--lumi-muted);
    font-family: var(--font-display);
    font-size: 0.9rem;
    opacity: 0;
}
.menu-footer a { color: inherit; text-decoration: none; transition: color 0.3s; }
.menu-footer a:hover { color: var(--lumi-accent); }

/* ======== SHARED SECTION STYLES ======== */
.section-label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--lumi-accent);
    font-weight: 700;
    display: block;
    margin-bottom: 16px;
    text-align: center;
}
.section-heading {
    font-family: var(--font-display);
    font-size: 2.8rem;
    line-height: 1.15;
    color: var(--lumi-fg);
    margin-bottom: 50px;
    font-weight: 300;
    text-align: center;
    letter-spacing: -1px;
}
.section-heading span { font-weight: 800; }

/* ======== SECTION 1: HERO ======== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 40px 80px;
    background-color: var(--lumi-bg);
    position: relative;
    overflow: hidden;
}
.hero-bg-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}
.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    opacity: 0.07;
    filter: grayscale(30%);
}
.hero-container {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 2;
}
.hero-well {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-inset);
    margin: 0 auto 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--lumi-bg);
}
.hero-drone-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.drone-icon {
    color: var(--lumi-accent);
    z-index: 2;
    position: relative;
}
.laser-ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid rgba(30, 80, 160, 0.15);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulseRing 3s ease-in-out infinite;
}
.laser-ring-1 { width: 110px; height: 110px; animation-delay: 0s; }
.laser-ring-2 { width: 150px; height: 150px; animation-delay: 0.6s; }
.laser-ring-3 { width: 190px; height: 190px; animation-delay: 1.2s; }

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--lumi-fg);
    margin-bottom: 24px;
    letter-spacing: -1.5px;
}
.accent-text {
    color: var(--lumi-accent);
}
.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--lumi-muted);
    max-width: 600px;
    margin: 0 auto 45px;
}
.hero-cta-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* ======== NEUMORPHIC BUTTONS ======== */
.btn-extruded {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: var(--lumi-radius-md);
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    background: var(--lumi-bg);
    box-shadow: var(--lumi-shadow-ext);
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
}
.btn-extruded:hover {
    box-shadow: var(--lumi-shadow-ext-hover);
    transform: translateY(-2px);
}
.btn-extruded:active {
    box-shadow: var(--lumi-shadow-inset-sm);
    transform: translateY(0);
}
.btn-extruded:focus-visible {
    outline: 2px solid var(--lumi-accent);
    outline-offset: 2px;
}
.btn-primary {
    color: var(--lumi-accent);
}
.btn-primary svg { stroke: var(--lumi-accent); }
.btn-secondary {
    color: var(--lumi-muted);
}
.btn-secondary svg { stroke: var(--lumi-muted); }
.btn-secondary:hover { color: var(--lumi-accent); }
.btn-secondary:hover svg { stroke: var(--lumi-accent); }

/* ======== SECTION 2: THE DEAL ======== */
.deal-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.deal-container {
    max-width: 1100px;
    margin: 0 auto;
}
.deal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: stretch;
}
.deal-problem {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-inset);
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.deal-problem-icon-well {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    background: var(--lumi-bg);
}
.deal-problem-icon-well svg { stroke: var(--lumi-muted); }
.deal-card-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--lumi-fg);
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.deal-card-text {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--lumi-muted);
}
.deal-problem-img {
    margin-top: 24px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--lumi-shadow-inset-sm);
    max-height: 180px;
}
.deal-problem-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.deal-solution {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-ext);
    padding: 50px 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.deal-solution:hover {
    transform: translateY(-2px);
    box-shadow: var(--lumi-shadow-ext-hover);
}
.deal-solution-side {
    text-align: center;
}
.deal-solution-icon-well {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    background: var(--lumi-bg);
}
.deal-solution-icon-well svg { stroke: var(--lumi-accent); }
.deal-side-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--lumi-fg);
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}
.deal-side-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--lumi-muted);
}
.deal-solution-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgb(163,177,198,0.5), transparent);
}

/* ======== SECTION 3: MARKET ======== */
.market-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.market-container {
    max-width: 1000px;
    margin: 0 auto;
}
.market-intro {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--lumi-muted);
    text-align: center;
    max-width: 700px;
    margin: -20px auto 50px;
}
.market-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.market-track {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-inset);
    padding: 40px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}
.market-metric {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--lumi-accent);
    letter-spacing: -1px;
}
.market-label {
    font-family: var(--font-body);
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--lumi-muted);
}

/* ======== SECTION 4: VALUE PROPOSITION ======== */
.value-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.value-container {
    max-width: 1100px;
    margin: 0 auto;
}
.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.value-card {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-ext);
    padding: 45px 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.value-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--lumi-shadow-ext-hover);
}
.value-icon-well {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-inset);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    background: var(--lumi-bg);
}
.value-icon-well svg { stroke: var(--lumi-accent); }
.value-card-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--lumi-fg);
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}
.value-card-text {
    font-family: var(--font-body);
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--lumi-muted);
}

/* ======== SECTION 5: PRODUCT ======== */
.product-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.product-container {
    max-width: 800px;
    margin: 0 auto;
}
.product-track-wrapper {
    position: relative;
    padding-left: 50px;
}
.product-track-line {
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 8px;
    border-radius: 4px;
    box-shadow: var(--lumi-shadow-inset-sm);
    background: var(--lumi-bg);
    overflow: hidden;
}
.product-track-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--lumi-accent), rgba(30, 80, 160, 0.3));
    border-radius: 4px;
    transition: height 0.1s linear;
}
.product-steps {
    display: flex;
    flex-direction: column;
    gap: 60px;
}
.product-step {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    position: relative;
}
.step-node {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-ext);
    background: var(--lumi-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    transition: box-shadow 0.4s ease;
}
.step-node svg { stroke: var(--lumi-muted); transition: stroke 0.4s ease; }
.product-step.is-active .step-node {
    box-shadow: var(--lumi-shadow-ext-hover), 0 0 20px rgba(30, 80, 160, 0.25);
}
.product-step.is-active .step-node svg { stroke: var(--lumi-accent); }
.step-content {
    padding-top: 6px;
}
.step-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--lumi-fg);
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}
.step-text {
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--lumi-muted);
}

/* ======== SECTION 6: TRACTION ======== */
.traction-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.traction-container {
    max-width: 1000px;
    margin: 0 auto;
}
.traction-logos {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}
.traction-logo-stamp {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-md);
    box-shadow: var(--lumi-shadow-inset-sm);
    padding: 20px 36px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--lumi-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.traction-testimonials {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}
.testimonial-vault {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-inset);
    padding: 40px 35px;
}
.testimonial-quote {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--lumi-fg);
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-author {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--lumi-accent);
    letter-spacing: 0.5px;
}

/* ======== SECTION 7: IMPACT ======== */
.impact-section {
    padding: 140px 40px;
    background-color: var(--lumi-bg);
    position: relative;
    overflow: hidden;
}
.impact-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}
.impact-rings {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.impact-ring {
    position: absolute;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.impact-ring-1 {
    width: 200px; height: 200px;
    box-shadow: var(--lumi-shadow-inset-sm);
}
.impact-ring-2 {
    width: 340px; height: 340px;
    box-shadow: var(--lumi-shadow-ext);
}
.impact-ring-3 {
    width: 480px; height: 480px;
    box-shadow: var(--lumi-shadow-inset-sm);
}
.impact-ring-4 {
    width: 620px; height: 620px;
    box-shadow: var(--lumi-shadow-ext);
}
.impact-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.impact-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 300;
    color: var(--lumi-fg);
    margin-bottom: 20px;
    letter-spacing: -1px;
    line-height: 1.15;
}
.impact-title span { font-weight: 800; }
.impact-text {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--lumi-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* ======== SECTION 8: TEAM & CONTACT ======== */
.team-section {
    padding: 100px 40px;
    background-color: var(--lumi-bg);
}
.team-container {
    max-width: 900px;
    margin: 0 auto;
}
.team-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.team-profile-card {
    background: var(--lumi-bg);
    border-radius: var(--lumi-radius-lg);
    box-shadow: var(--lumi-shadow-ext);
    padding: 50px 40px;
    text-align: center;
}
.team-portrait-well {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    box-shadow: var(--lumi-shadow-inset);
    margin: 0 auto 24px;
    overflow: hidden;
    background: var(--lumi-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}
.team-portrait-well img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}
.team-name {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--lumi-fg);
    margin-bottom: 6px;
    letter-spacing: -0.5px;
}
.team-role {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--lumi-accent);
    font-weight: 500;
}
.team-contact-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.btn-contact {
    color: var(--lumi-fg);
    font-size: 0.95rem;
    padding: 20px 30px;
    border-radius: var(--lumi-radius-md);
    justify-content: flex-start;
}
.btn-contact svg { stroke: var(--lumi-accent); min-width: 22px; }
.btn-contact:hover { color: var(--lumi-accent); }

/* ======== FOOTER ======== */
.sofia-footer-section {
    background-color: var(--lumi-fg);
    color: #ffffff;
    direction: ltr;
    padding: 80px 40px 0 40px;
    border-top: none;
    font-size: 0.9rem;
    position: relative;
    z-index: 10;
}
.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 60px;
    align-items: start;
}
.footer-col {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}
.footer-col h4 {
    color: rgba(255,255,255,0.5);
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
    width: fit-content;
}
.footer-logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.footer-desc {
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
    max-width: 280px;
    font-family: var(--font-body);
    font-size: 0.88rem;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 400;
    display: block;
    font-family: var(--font-body);
}
.footer-links a:hover { color: #ffffff; padding-left: 5px; }
.footer-contact-item { margin-bottom: 15px; font-style: normal; }
.footer-contact-label {
    display: block;
    font-size: 0.72rem;
    color: rgba(255,255,255,0.35);
    margin-bottom: 3px;
    font-family: var(--font-display);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.footer-contact-value {
    color: #ffffff;
    font-weight: 500;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
    font-family: var(--font-body);
}
.footer-contact-value:hover { color: rgba(255,255,255,0.6); }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 25px 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.25);
    font-size: 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    font-family: var(--font-body);
}
.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.25);
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.3s;
}
.footer-bottom-links a:hover { color: #fff; }

/* ======== KEYFRAMES ======== */
@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}
@keyframes bounceDown {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(8px); }
    60% { transform: translateY(4px); }
}
@keyframes pulseRing {
    0% { opacity: 0.3; transform: translate(-50%, -50%) scale(0.85); }
    50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0.3; transform: translate(-50%, -50%) scale(0.85); }
}

/* ======== RESPONSIVE: MOBILE (max-width: 768px) ======== */
@media (max-width: 768px) {
    .nexus-header { padding: 15px 20px; }
    .menu-text { display: none; }
    .nav-link { font-size: 2rem; }
    .menu-footer { flex-direction: column; gap: 15px; text-align: center; bottom: 30px; }

    .hero-section { padding: 100px 20px 60px; min-height: auto; }
    .hero-well { width: 160px; height: 160px; margin-bottom: 36px; }
    .laser-ring-1 { width: 80px; height: 80px; }
    .laser-ring-2 { width: 110px; height: 110px; }
    .laser-ring-3 { width: 140px; height: 140px; }
    .drone-icon { width: 56px; height: 56px; }
    .hero-title { font-size: 2.2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-cta-group { flex-direction: column; align-items: center; }
    .btn-extruded { width: 100%; max-width: 320px; }

    .deal-section { padding: 70px 20px; }
    .section-heading { font-size: 2rem; margin-bottom: 36px; }
    .deal-grid { grid-template-columns: 1fr; }
    .deal-problem, .deal-solution { padding: 36px 28px; }

    .market-section { padding: 70px 20px; }
    .market-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .market-metric { font-size: 1.8rem; }
    .market-track { padding: 28px 16px; }

    .value-section { padding: 70px 20px; }
    .value-grid { grid-template-columns: 1fr; gap: 20px; }
    .value-card { padding: 36px 28px; }

    .product-section { padding: 70px 20px; }
    .product-track-wrapper { padding-left: 40px; }
    .product-track-line { left: 20px; }
    .product-steps { gap: 40px; }
    .step-node { width: 46px; height: 46px; min-width: 46px; }
    .step-title { font-size: 1.15rem; }

    .traction-section { padding: 70px 20px; }
    .traction-logos { gap: 16px; }
    .traction-logo-stamp { padding: 14px 24px; font-size: 0.75rem; }
    .traction-testimonials { grid-template-columns: 1fr; }
    .testimonial-vault { padding: 30px 24px; }

    .impact-section { padding: 100px 20px; }
    .impact-title { font-size: 2.2rem; }
    .impact-ring-1 { width: 140px; height: 140px; }
    .impact-ring-2 { width: 230px; height: 230px; }
    .impact-ring-3 { width: 320px; height: 320px; }
    .impact-ring-4 { width: 410px; height: 410px; }

    .team-section { padding: 70px 20px; }
    .team-grid { grid-template-columns: 1fr; gap: 30px; }
    .team-profile-card { padding: 40px 28px; }

    .sofia-footer-section { padding: 60px 20px 20px 20px; }
    .footer-container { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .footer-col { align-items: center; text-align: center; }
    .footer-col h4 { margin: 0 auto 20px auto; }
    .footer-links a:hover { padding-left: 0; }
    .footer-desc { max-width: 100%; }
    .footer-bottom { flex-direction: column; gap: 15px; }
}

/* ======== RESPONSIVE: TABLET (769px - 1024px) ======== */
@media (max-width: 1024px) and (min-width: 769px) {
    .hero-title { font-size: 2.8rem; }
    .section-heading { font-size: 2.4rem; }

    .market-grid { grid-template-columns: 1fr 1fr; }
    .value-grid { grid-template-columns: 1fr 1fr; }

    .impact-ring-3 { width: 400px; height: 400px; }
    .impact-ring-4 { width: 520px; height: 520px; }

    .footer-container { grid-template-columns: 1fr 1fr; gap: 40px; }
}