/* Riverlabs - Environmental Monitoring Website Styles */

:root {
    /* Riverlabs Brand Colors */
    --primary-deep: #005262;      /* Dark teal - c100 m35 y35 k45 */
    --primary-bright: #00aab5;    /* Bright cyan - c100 m0 y35 k0 */
    --primary-light: #8ccfb7;     /* Light mint - c45 m0 y35 k0 */
    
    /* Supporting colors derived from brand palette */
    --primary-ocean: #007282;     /* Midtone between deep and bright */
    --accent-teal: #00aab5;       /* Using bright cyan as accent */
    --accent-mint: #8ccfb7;       /* Light mint for highlights */
    --accent-coral: #FF6B6B;      /* Kept for alerts/special emphasis */
    
    /* Neutral colors */
    --neutral-dark: #1A1A2E;
    --neutral-charcoal: #2D2D44;
    --neutral-gray: #5F5F7A;
    --neutral-light: #E8EEF2;
    --neutral-white: #FAFBFC;
    
    /* Gradients using brand colors */
    --gradient-water: linear-gradient(135deg, #005262 0%, #007282 50%, #00aab5 100%);
    --gradient-depth: linear-gradient(180deg, rgba(0, 82, 98, 0.95) 0%, rgba(0, 170, 181, 0.85) 100%);
    
    /* Typography */
    --font-display: 'Karla', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
    --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

body {
    font-family: var(--font-display);
    font-size: 18px;
    line-height: 1.7;
    color: var(--neutral-dark);
    background: var(--neutral-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-deep);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--space-sm);
}

a {
    color: var(--primary-ocean);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--accent-teal);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(250, 251, 252, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(10, 61, 98, 0.1);
    z-index: 1000;
    padding: var(--space-sm) 0;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-deep);
    letter-spacing: 0.05em;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-water);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.logo:hover::after {
    transform: scaleX(1);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    align-items: center;
}

.nav-menu a {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--neutral-charcoal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-teal);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 8px 32px rgba(10, 61, 98, 0.15);
    border-radius: 8px;
    padding: var(--space-sm);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content a {
    display: block;
    padding: 0.75rem var(--space-sm);
    color: var(--neutral-charcoal);
    text-transform: none;
    font-family: var(--font-display);
    font-size: 0.95rem;
    border-radius: 4px;
}

.dropdown-content a:hover {
    background: var(--neutral-light);
    color: var(--primary-ocean);
}

.dropdown-content a::before {
    display: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--gradient-depth);
}

.hero-slideshow {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(0, 82, 98, 0.85) 0%, 
        rgba(0, 170, 181, 0.75) 50%, 
        rgba(140, 207, 183, 0.65) 100%);
}

.hero-slide.active {
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: var(--space-md);
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    color: white;
    font-size: 4rem;
    margin-bottom: var(--space-md);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    color: var(--accent-lime);
    font-size: 1.4rem;
    font-weight: 300;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.wave-decoration {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: var(--neutral-white);
    clip-path: polygon(0 50%, 100% 0, 100% 100%, 0 100%);
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-teal);
    color: white;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 6px;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 20px rgba(78, 205, 196, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(78, 205, 196, 0.5);
    background: var(--accent-coral);
}

.cta-button.secondary {
    background: transparent;
    border: 2px solid var(--accent-teal);
    color: var(--accent-teal);
    box-shadow: none;
}

.cta-button.secondary:hover {
    background: var(--accent-teal);
    color: white;
}

/* Page Headers */
.page-header {
    padding: var(--space-xl) 0 var(--space-lg);
    background: linear-gradient(135deg, var(--neutral-light) 0%, var(--neutral-white) 100%);
    border-bottom: 3px solid var(--accent-teal);
}

.page-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-teal);
    margin-bottom: var(--space-sm);
}

.page-header h1 {
    margin-bottom: var(--space-sm);
}

.page-intro {
    font-size: 1.25rem;
    color: var(--neutral-gray);
    max-width: 800px;
}

/* Section Headers */
.section-header {
    margin-bottom: var(--space-lg);
}

.section-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.0rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-teal);
    margin-bottom: var(--space-xs);
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    position: relative;
    padding-bottom: var(--space-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-water);
}

/* Mission Section */
.mission {
    padding: var(--space-xl) 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.mission-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
    transition: var(--transition-smooth);
}

.mission-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(10, 61, 98, 0.15);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--space-sm);
}

/* Sensors Overview */
.sensors-overview {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.sensor-card {
    display: block;
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    border: 2px solid transparent;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.sensor-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-water);
    opacity: 0;
    transition: var(--transition-smooth);
}

.sensor-card:hover {
    border-color: var(--accent-teal);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(78, 205, 196, 0.2);
}

.sensor-card:hover::before {
    opacity: 0.05;
}

.sensor-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.sensor-card h3 {
    color: var(--primary-deep);
    margin-bottom: var(--space-sm);
}

.sensor-card p {
    color: var(--neutral-gray);
    margin-bottom: var(--space-md);
}

.learn-more {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-teal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
}

/* Deployments */
.deployments {
    padding: var(--space-xl) 0;
}

.deployment-map {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.deployment-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.stat {
    padding: var(--space-md);
    background: var(--gradient-water);
    border-radius: 12px;
    color: white;
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.deployment-list {
    background: white;
    padding: var(--space-md);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
}

.deployment-list h3 {
    color: var(--primary-deep);
    margin-bottom: var(--space-md);
}

.deployment-list ul {
    list-style: none;
}

.deployment-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--neutral-light);
}

.deployment-list li:last-child {
    border-bottom: none;
}

/* Sensor Detail Pages */
.sensor-detail {
    padding: var(--space-xl) 0;
}

.sensor-detail.alternate {
    background: var(--neutral-light);
}

.sensor-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.sensor-detail.alternate .sensor-detail-grid {
    grid-template-columns: 1fr 1fr;
}

.sensor-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent-lime);
    color: var(--primary-deep);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 20px;
    margin-bottom: var(--space-sm);
}

.lead {
    font-size: 1.2rem;
    color: var(--neutral-gray);
    margin-bottom: var(--space-md);
}

.feature-list, .application-list {
    margin: var(--space-md) 0;
    padding-left: var(--space-md);
}

.feature-list li, .application-list li {
    margin-bottom: var(--space-sm);
}

.sensor-specs {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--neutral-light);
    border-radius: 12px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.spec-item {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--neutral-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.spec-value {
    font-weight: 600;
    color: var(--primary-deep);
}

.sensor-visual {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sensor-illustration {
    height: 400px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.lidar-bg {
    background: linear-gradient(135deg, #0A3D62 0%, #2E8FAA 100%);
}

.ultrasonic-bg {
    background: linear-gradient(135deg, #1B6B93 0%, #4ECDC4 100%);
}

.water-bg {
    background: linear-gradient(135deg, #2E8FAA 0%, #95E1D3 100%);
}

.moisture-bg {
    background: linear-gradient(135deg, #0A3D62 0%, #95E1D3 100%);
}

.download-link {
    display: block;
    padding: var(--space-sm);
    background: white;
    border: 2px solid var(--accent-teal);
    border-radius: 6px;
    color: var(--primary-ocean);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-align: center;
    transition: var(--transition-smooth);
    margin-top: 0.5rem;
}

.download-link:hover {
    background: var(--accent-teal);
    color: white;
}

.download-link-half {
    display: block;
    padding: var(--space-sm);
    background: white;
    border: 2px solid var(--accent-teal);
    border-radius: 6px;
    color: var(--primary-ocean);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: center;
    transition: var(--transition-smooth);
    flex: 1;
}

.download-link-half:hover {
    background: var(--accent-teal);
    color: white;
}

.request-quote-btn {
    background: linear-gradient(135deg, #00aab5 0%, #8ccfb7 100%);
    color: white;
    border: 2px solid #8ccfb7;
}

.request-quote-btn:hover {
    background: linear-gradient(135deg, #8ccfb7 0%, white 100%);
    color: var(--primary-ocean);
    border: 2px solid #00aab5;
}

/* Science Page */
.science-intro {
    padding: var(--space-xl) 0;
}

.two-column {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
}

.science-stat {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
    text-align: center;
    margin-bottom: var(--space-md);
}

.stat-large {
    display: block;
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-teal);
    margin-bottom: var(--space-xs);
}

.methodology {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.method-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: white;
    border-radius: 12px;
    margin-bottom: var(--space-md);
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
}

.method-number {
    font-family: var(--font-mono);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-teal);
    opacity: 0.2;
}

.method-details {
    margin-top: var(--space-sm);
    padding: var(--space-sm);
    background: var(--neutral-light);
    border-radius: 6px;
    font-size: 0.95rem;
}

.research-areas {
    padding: var(--space-xl) 0;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.research-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    border-left: 4px solid var(--accent-teal);
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
}

.data-principles {
    padding: var(--space-xl) 0;
    background: var(--gradient-depth);
    color: white;
}

.data-principles .section-title {
    color: white;
}

.lead-text {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: var(--space-lg);
}

.principle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.principle-item {
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.principle-item h4 {
    color: var(--accent-lime);
    margin-bottom: var(--space-sm);
}

.publications {
    padding: var(--space-xl) 0;
}

.publication-list {
    max-width: 900px;
    margin: 0 auto var(--space-lg);
}

.publication-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
    border-left: 3px solid var(--accent-teal);
    margin-bottom: var(--space-md);
}

.pub-year {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-teal);
}

.pub-authors {
    color: var(--neutral-gray);
    font-size: 0.95rem;
}

.pub-journal {
    font-style: italic;
    color: var(--neutral-gray);
    font-size: 0.9rem;
}

/* Consultancy Page */
.services-overview {
    padding: var(--space-xl) 0;
}

.intro-block {
    max-width: 900px;
    margin: 0 auto var(--space-lg);
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-md);
}

.service-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(10, 61, 98, 0.15);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.service-list {
    margin-top: var(--space-sm);
    padding-left: var(--space-md);
    color: var(--neutral-gray);
}

.expertise-areas {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.expertise-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    border-top: 4px solid var(--accent-teal);
}

.case-studies {
    padding: var(--space-xl) 0;
}

.case-study {
    padding: var(--space-lg);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
    margin-bottom: var(--space-md);
}

.case-study-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--space-md);
}

.case-tag {
    padding: 0.5rem 1rem;
    background: var(--accent-lime);
    color: var(--primary-deep);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 20px;
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.metric {
    text-align: center;
    padding: var(--space-sm);
    background: var(--neutral-light);
    border-radius: 8px;
}

.metric strong {
    display: block;
    font-family: var(--font-mono);
    font-size: 2rem;
    color: var(--accent-teal);
    margin-bottom: 0.25rem;
}

.metric span {
    font-size: 0.9rem;
    color: var(--neutral-gray);
}

.case-link {
    display: inline-block;
    margin-top: var(--space-md);
    color: var(--accent-teal);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.case-link:hover {
    color: var(--primary-deep);
    transform: translateX(5px);
}

.process {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.process-step {
    position: relative;
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
}

.step-marker {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--gradient-water);
    color: white;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: var(--space-sm);
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.contact-method {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
}

/* About Page */
.story {
    padding: var(--space-xl) 0;
}

.story-content {
    max-width: 800px;
    margin: 0 auto;
}

.values {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.value-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
}

.team {
    padding: var(--space-xl) 0;
}

.team-intro {
    text-align: center;
    color: var(--neutral-gray);
    margin-bottom: var(--space-lg);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.team-member {
    text-align: center;
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
    transition: var(--transition-smooth);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(10, 61, 98, 0.15);
}

.member-photo {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--space-md);
    border-radius: 50%;
    overflow: hidden;
    background: var(--gradient-water);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.member-role {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent-teal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.member-bio {
    font-size: 0.95rem;
    color: var(--neutral-gray);
    margin-bottom: var(--space-sm);
}

.member-links {
    font-size: 0.9rem;
}

.collaborators {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.partners-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-lg);
    color: var(--neutral-gray);
}

.partners-logos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.partner-logo-item {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.partner-logo-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(10, 61, 98, 0.15);
}

.partner-logo-item img {
    max-width: 180px;
    max-height: 100px;
    width: auto;
    height: auto;
    object-fit: contain;
    margin-bottom: var(--space-sm);
}

.partner-logo-item p {
    color: var(--neutral-gray);
    font-weight: 600;
    font-size: 0.9rem;
}

.partners-section {
    padding: var(--space-xl) 0;
    background: white;
}

.partners-section .partners-logos {
    max-width: 1000px;
    margin: var(--space-lg) auto;
}

.partners-section .partner-logo-item {
    padding: var(--space-lg);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.partner-logo {
    padding: var(--space-lg);
    background: white;
    border-radius: 12px;
    text-align: center;
    color: var(--neutral-gray);
    font-weight: 600;
}

.partners-list {
    max-width: 900px;
    margin: 0 auto;
}

.partners-list h3 {
    color: var(--primary-deep);
    margin: var(--space-md) 0 var(--space-sm) 0;
    font-size: 1.3rem;
}

.partners-list ul {
    list-style: none;
    padding-left: 0;
}

.partners-list li {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0, 82, 98, 0.1);
}

.partners-list li:last-child {
    border-bottom: none;
}

.partner-note {
    text-align: center;
    margin-top: var(--space-lg);
}

.join {
    padding: var(--space-xl) 0;
}

.join-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.join-card {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.08);
}

.join-card h3 {
    margin-bottom: var(--space-sm);
}

.join-link {
    display: inline-block;
    margin-top: var(--space-sm);
    color: var(--accent-teal);
    font-weight: 600;
}

.contact-section {
    padding: var(--space-xl) 0;
    background: var(--neutral-light);
}

.contact-section h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.contact-info {
    padding: var(--space-md);
    background: white;
    border-radius: 12px;
    text-align: center;
}

/* CTA Sections */
.cta-section {
    padding: var(--space-xl) 0;
    text-align: center;
    background: var(--gradient-depth);
    color: white;
}

.cta-section h2 {
    color: white;
    margin-bottom: var(--space-sm);
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: var(--space-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background: var(--neutral-dark);
    color: var(--neutral-light);
    padding: var(--space-lg) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--space-sm);
}

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

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

.footer-section a {
    color: var(--neutral-light);
}

.footer-section a:hover {
    color: var(--accent-teal);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--neutral-charcoal);
    color: var(--neutral-gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .two-column,
    .deployment-map,
    .sensor-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .case-metrics {
        grid-template-columns: 1fr;
    }
}