:root {
    /* Colors */
    --bg-dark: #050505;
    --bg-surface: #0f1012;
    --bg-glass: rgba(20, 20, 22, 0.7);
    --text-primary: #f2f3f5;
    --text-secondary: #9ba0af;
    --border-color: rgba(255, 255, 255, 0.08);

    /* Logo Accents: blue, green, red */
    --accent-blue: #0088ff;
    --accent-green: #00dd88;
    --accent-red: #ff3344;
    --accent-gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-green));

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Metrics */
    --container-width: 1200px;
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #fff;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--text-primary);
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
}

.section-padding {
    padding: 6rem 0;
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
}
.btn-accent {
    background: var(--accent-gradient);
    color: #fff;
    border: none;
}
.btn-accent:hover {
     box-shadow: 0 4px 15px rgba(0, 136, 255, 0.3);
}

/* =========================================
   Header & Nav
   ========================================= */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: transform var(--transition-smooth);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    z-index: 1001; /* Stay above mobile menu */
    position: relative;
    padding: 0.5rem 0; /* Adding spacing */
}
.logo img {
    height: 40px; /* Scaling correctly */
    width: auto;
    object-fit: contain; /* Avoid pixelation */
    max-width: 250px;
}

.main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
}

.main-nav .btn-outline {
    padding: 0.5rem 1.2rem;
    font-size: 0.85rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 101;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

/* =========================================
   Footer
   ========================================= */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo img {
    height: 30px;
    margin-bottom: 1rem;
    opacity: 0.7;
}

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

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column a {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* =========================================
   Utilities & Animations
   ========================================= */
.text-accent { background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Cinematic Fade Ups */
.fade-up { 
    opacity: 0; 
    transform: translateY(40px); 
    filter: blur(10px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1); 
}
.fade-up.visible { 
    opacity: 1; 
    transform: translateY(0); 
    filter: blur(0);
}

/* Stagger grid items if wrapped in .stagger-grid */
.stagger-grid .fade-up:nth-child(1) { transition-delay: 0.1s; }
.stagger-grid .fade-up:nth-child(2) { transition-delay: 0.15s; }
.stagger-grid .fade-up:nth-child(3) { transition-delay: 0.2s; }
.stagger-grid .fade-up:nth-child(4) { transition-delay: 0.25s; }
.stagger-grid .fade-up:nth-child(5) { transition-delay: 0.3s; }
.stagger-grid .fade-up:nth-child(6) { transition-delay: 0.35s; }
.stagger-grid .fade-up:nth-child(7) { transition-delay: 0.4s; }
.stagger-grid .fade-up:nth-child(8) { transition-delay: 0.45s; }
.stagger-grid .fade-up:nth-child(9) { transition-delay: 0.5s; }
.stagger-grid .fade-up:nth-child(10) { transition-delay: 0.55s; }
.stagger-grid .fade-up:nth-child(11) { transition-delay: 0.6s; }
.stagger-grid .fade-up:nth-child(12) { transition-delay: 0.65s; }
.stagger-grid .fade-up:nth-child(13) { transition-delay: 0.7s; }
.stagger-grid .fade-up:nth-child(14) { transition-delay: 0.75s; }
.stagger-grid .fade-up:nth-child(15) { transition-delay: 0.8s; }
.reveal-text {
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
}
.reveal-text span {
    display: inline-block;
    transform: translateY(120%);
    opacity: 0;
    animation: revealTextAnim 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes revealTextAnim {
    0% { transform: translateY(120%); opacity: 0; filter: blur(10px); }
    100% { transform: translateY(0); opacity: 1; filter: blur(0); }
}
.delay-1 { animation-delay: 0.1s !important; }
.delay-2 { animation-delay: 0.3s !important; }
.delay-3 { animation-delay: 0.5s !important; }
.delay-4 { animation-delay: 0.7s !important; }

/* Ambient Orbs */
@keyframes ambientDrift {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(5vw, -5vh) scale(1.1); }
    66% { transform: translate(-5vw, 5vh) scale(0.9); }
    100% { transform: translate(0, 0) scale(1); }
}

.ambient-orb {
    position: fixed;
    top: 20%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 136, 255, 0.04) 0%, transparent 60%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    animation: ambientDrift 20s infinite ease-in-out;
}
.ambient-orb.orb-2 {
    top: 50%;
    left: 60%;
    background: radial-gradient(circle, rgba(0, 221, 136, 0.03) 0%, transparent 60%);
    animation: ambientDrift 25s infinite ease-in-out reverse;
}

#app-content {
    min-height: calc(100vh - 80px); /* header height */
    padding-top: 80px;
    opacity: 1;
    transition: opacity 0.3s ease;
}
#app-content.fade-out {
    opacity: 0;
}

/* Mobile Responsive */
@media (max-width: 900px) {
    .main-nav {
        display: none; /* simple hidden nav for now, we will add toggle logic */
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
    }
    .main-nav.open {
        display: flex;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .footer-inner {
        flex-direction: column;
    }
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
}

/* =========================================
   Layout & Components (Grids, Cards, Forms)
   ========================================= */

/* Typography Utils */
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }
.pb-2 { padding-bottom: 0.5rem; }
.p-5 { padding: 3rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-8 { padding-top: 5rem; }
.w-100 { width: 100%; }
.border-bottom { border-bottom: 1px solid var(--border-color); }
.small-text { font-size: 0.9rem; }

.content-block {
    max-width: 800px;
}
.lg-block {
    max-width: 900px;
}
.lead {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}
.page-title {
    font-size: 3rem;
    margin-bottom: 2rem;
}
.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }
.span-2 { grid-column: span 2; }
.flex-row { display: flex; gap: 4rem; align-items: center; }
.col-text { flex: 1; }
.col-visual { flex: 1; }

@media (max-width: 900px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .flex-row { flex-direction: column; }
    .page-title { font-size: 2.2rem; }
    .section-title { font-size: 2rem; }
}

/* Footer overrides */
.footer-logo img {
    height: 40px;
    margin-bottom: 2rem;
    object-fit: contain;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    .flex-row {
        flex-direction: column;
    }
    .section-padding {
        padding: 4rem 0;
    }
    .hero-title {
        font-size: 2.8rem; /* scaled down for mobile */
        gap: 0.5rem 0.2rem; /* reduced gap */
    }
    .hero-bg {
        background-attachment: scroll; /* better performance on mobile */
    }
    .parallax-bg {
        background-attachment: scroll; /* usually parallax is buggy on iOS, scroll is safer */
    }
    .site-header {
        padding: 0.5rem 1rem;
    }
    .section-title { font-size: 2rem; }
}

/* Cards */
.card, .tech-card, .team-card, .site-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02), 0 10px 30px rgba(0,0,0,0.5);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), border-color 0.5s;
    position: relative;
    overflow: hidden;
}
.card:hover, .tech-card:hover, .team-card:hover, .site-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 136, 255, 0.3);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05), 0 20px 40px rgba(0,0,0,0.8);
}
/* Subtle glass reflection on card hover */
.card::after, .tech-card::after, .team-card::after, .site-card::after {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.03), transparent);
    transform: skewX(-20deg);
    transition: left 0.7s ease;
}
.card:hover::after, .tech-card:hover::after, .team-card:hover::after, .site-card:hover::after {
    left: 150%;
}
.card-icon, .tech-icon {
    margin-bottom: 1.5rem;
    background: rgba(255,255,255,0.03);
    width: 60px; height: 60px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('/public/images/hero-background.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 1;
}
.hero-bg::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(5, 5, 5, 0.4), var(--bg-dark) 100%);
    z-index: 2;
}
.hero-glow {
    position: absolute;
    top: 30%; left: 50%;
    width: 60vw; height: 60vw;
    background: radial-gradient(circle, rgba(0, 136, 255, 0.15) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: 3;
}
.hero-content {
    position: relative;
    z-index: 4;
    max-width: 900px;
    padding-top: 5rem;
}
.hero-title {
    font-size: 5rem;
    line-height: 1.05;
    margin-bottom: 2rem;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.8);
}
.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 3rem;
    max-width: 750px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
}
.hero-actions {
    display: flex;
    gap: 1.5rem;
}
@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .hero-actions { flex-direction: column; align-items: flex-start; }
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}
.form-control:focus {
    outline: none;
    border-color: var(--accent-blue);
}
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 4L6 8L10 4' stroke='%239ba0af' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

/* Lists */
.styled-list {
    list-style: none;
    padding-left: 0;
}
.styled-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
}
.styled-list li::before {
    content: "•";
    color: var(--accent-blue);
    position: absolute;
    left: 0;
    top: 0;
    font-size: 1.2rem;
    line-height: 1.4;
}

/* Cinematic Utilities */
.parallax-bg {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    position: relative;
}
.parallax-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, var(--bg-dark), rgba(5,5,5,0.6));
    z-index: 1;
}

/* Image Cards for Sites */
.visual-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background-size: cover;
    background-position: center;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.5s ease;
}
.visual-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
    z-index: 1;
    transition: opacity 0.5s ease;
}
.visual-card-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    transform: translateY(20px);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.visual-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(0,136,255,0.4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.8);
    z-index: 10;
}
.visual-card:hover .visual-card-content {
    transform: translateY(0);
}
.visual-card:hover::before {
    opacity: 0.9;
}

/* =========================================
   Technology Page Animations & Utilities
   ========================================= */

/* Dividers */
.section-divider {
    height: 1px;
    width: 100%;
    margin: 4rem 0;
    background: linear-gradient(to right, transparent, rgba(0, 136, 255, 0.3), transparent);
    position: relative;
}
.section-divider::before {
    content: '';
    position: absolute;
    top: -2px; left: 50%;
    transform: translateX(-50%);
    width: 40px; height: 5px;
    background: var(--accent-blue);
    border-radius: 10px;
    box-shadow: 0 0 15px var(--accent-blue);
}

/* SAR Animation Diagram */
.sar-diagram {
    position: relative;
    width: 100%;
    max-width: 900px;
    height: 500px;
    margin: 4rem auto;
    background: url('/public/images/harmonic-sar-radar-waves.png') center/cover no-repeat;
    border-radius: 16px;
    border: 1px solid rgba(0, 136, 255, 0.2);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.9), inset 0 0 40px rgba(0, 0, 0, 0.8);
}

.sar-diagram-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(5,5,10,0.8) 0%, rgba(5,5,10,0.4) 40%, rgba(5,5,10,0.95) 100%);
    z-index: 1;
}

/* 1. Satellite & Pulse Down */
.sar-satellite {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 24px;
    background: rgba(10, 15, 25, 0.8);
    border: 1px solid var(--accent-blue);
    border-radius: 4px;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 20px rgba(0, 136, 255, 0.6);
}
.sar-satellite::before {
    content: 'SAR SATELLITE';
    font-family: var(--font-heading);
    font-size: 0.5rem;
    font-weight: bold;
    color: var(--accent-blue);
    letter-spacing: 1px;
}
.sar-satellite::after { /* Solar panels */
    content: '';
    position: absolute;
    top: 50%; left: -40px;
    width: 140px; height: 2px;
    background: rgba(0, 136, 255, 0.8);
    z-index: -1;
    box-shadow: 0 0 8px rgba(0, 136, 255, 0.8);
}

.sar-pulse-down {
    position: absolute;
    top: 40px; left: 50%;
    width: 100px; height: 100px;
    border: 2px solid var(--accent-blue);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    animation: pulseDown 6s infinite ease-out;
    z-index: 5;
}
.sar-pulse-down.delay-a { animation-delay: 0.5s; }
.sar-pulse-down.delay-b { animation-delay: 1s; }

@keyframes pulseDown {
    0% { transform: translate(-50%, 0) scale(0); opacity: 0.8; }
    25% { transform: translate(-50%, 200px) scale(3); opacity: 0; border: 1px solid var(--accent-blue); }
    100% { opacity: 0; }
}

/* 2. Surface Interaction */
.sar-surface {
    position: absolute;
    top: 50%; left: 0; width: 100%; height: 1px;
    background: linear-gradient(to right, transparent, rgba(0,221,136,0.5), transparent);
    z-index: 4;
}

.sar-surface-impact {
    position: absolute;
    top: 50%; left: 50%;
    width: 300px; height: 15px;
    transform: translate(-50%, -50%);
    background: radial-gradient(ellipse at center, rgba(0,221,136,0.8) 0%, transparent 70%);
    opacity: 0;
    animation: surfaceImpactVib 6s infinite ease-in-out;
    z-index: 5;
}

@keyframes surfaceImpactVib {
    0%, 20% { opacity: 0; transform: translate(-50%, -50%) scaleX(0.2); }
    25% { opacity: 1; transform: translate(-50%, -50%) scaleX(1); }
    35%, 100% { opacity: 0; transform: translate(-50%, -50%) scaleX(1.5); }
}

/* 3. Subsurface Propagation */
.sar-subsurface-waves {
    position: absolute;
    top: 50%; left: 50%;
    width: 400px; height: 250px;
    transform: translateX(-50%);
    overflow: hidden;
    z-index: 3;
}
.sar-wave-circle {
    position: absolute;
    top: 0; left: 50%;
    width: 120px; height: 120px;
    border: 2px dashed rgba(255, 51, 68, 0.8);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    animation: subsurfaceProp 6s infinite ease-out;
}
.sar-wave-circle.delay-a { animation-delay: 0.3s; }
.sar-wave-circle.delay-b { animation-delay: 0.6s; }

@keyframes subsurfaceProp {
    0%, 25% { opacity: 0; transform: translate(-50%, -10%) scale(0.2); }
    30% { opacity: 1; }
    55% { opacity: 0; transform: translate(-50%, 100%) scale(3.5); border-width: 1px; }
    100% { opacity: 0; }
}

/* 4. Harmonic Return */
.sar-pulse-up {
    position: absolute;
    bottom: 30%; left: 50%;
    width: 120px; height: 120px;
    border: 2px solid rgba(0, 221, 136, 0.8);
    border-radius: 50%;
    transform: translate(-50%, 50%) scale(0);
    opacity: 0;
    animation: pulseUp 6s infinite ease-in;
    z-index: 6;
}
@keyframes pulseUp {
    0%, 55% { opacity: 0; transform: translate(-50%, 20%) scale(0); border-width: 2px; }
    60% { opacity: 0.9; }
    85% { transform: translate(-50%, -250px) scale(2); opacity: 0; border-width: 0.5px; }
    100% { opacity: 0; }
}

/* Tomography visual container */
.tomography-container {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(0, 136, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    position: relative;
    height: 400px;
    background: url('/public/images/subsurface-tomography-visualization.png') center/cover no-repeat;
    margin-top: 2rem;
}
.tomography-container::after {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(to right, var(--bg-surface) 0%, transparent 15%, transparent 85%, var(--bg-surface) 100%);
}