/* ===================================
   RESILIENT OPERATIONS SYSTEM EQUIPMENT LLC
   Modern Website Styling
   Colors: Alabama Crimson (#A4343A) & White
   =================================== */

:root {
    /* Alabama University Colors */
    --crimson: #A4343A;
    --crimson-dark: #8B2635;
    --crimson-light: #B94A56;
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E9ECEF;
    --medium-gray: #6C757D;
    --dark-gray: #343A40;
    --black: #000000;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--crimson) 0%, var(--crimson-dark) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--dark-gray) 0%, var(--black) 100%);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 25px rgba(0,0,0,0.2);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.25);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-navigation: 1000;
    --z-dropdown: 1010;
    --z-modal: 1020;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

/* ===================================
   LAYOUT COMPONENTS
   =================================== */

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-sm) auto;
    border-radius: 2px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--crimson);
    border-color: var(--crimson);
}

.btn-secondary:hover {
    background: var(--crimson);
    color: var(--white);
    transform: translateY(-2px);
}

/* ===================================
   NAVIGATION
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--light-gray);
    z-index: var(--z-navigation);
    transition: var(--transition-normal);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--crimson);
}

.nav-logo {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--dark-gray);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--crimson);
    transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--crimson);
    transition: var(--transition-fast);
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-secondary);
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 20%, rgba(164, 52, 58, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(164, 52, 58, 0.2) 0%, transparent 50%),
        var(--gradient-secondary);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--crimson-light);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    max-width: 400px;
}

.grid-panel {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-normal);
    cursor: pointer;
}

.grid-panel:hover,
.grid-panel.active {
    background: rgba(164, 52, 58, 0.3);
    border-color: var(--crimson-light);
    transform: translateY(-5px);
}

.grid-panel i {
    font-size: 2rem;
    color: var(--crimson-light);
}

.grid-panel span {
    font-weight: 600;
    font-size: 0.9rem;
}

/* ===================================
   FEATURED VIDEO SECTION
   =================================== */

.featured-video {
    padding: var(--spacing-xl) 0;
    background: var(--dark-gray);
    position: relative;
}

.video-container {
    max-width: 80%; /* Reduced by 20% from 100% */
    margin: 0 auto;
    padding: 0;
}

.video-wrapper {
    position: relative;
    padding-bottom: 45%; /* Reduced by 20% from 56.25% (16:9 aspect ratio) */
    height: 0;
    overflow: hidden;
    background: var(--black);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.video-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--border-radius-lg);
}

/* Video section responsive adjustments */
@media (max-width: 768px) {
    .featured-video {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .video-container {
        max-width: 90%; /* Slightly larger on tablets for better viewing */
    }
    
    .video-wrapper {
        padding-bottom: 50.6%; /* Adjusted for tablet viewing */
        border-radius: var(--border-radius-md);
    }
}

@media (max-width: 480px) {
    .featured-video {
        padding: var(--spacing-md) var(--spacing-xs);
    }
    
    .video-container {
        max-width: 95%; /* Near full-width on mobile for better usability */
    }
    
    .video-wrapper {
        padding-bottom: 53.4%; /* Adjusted for mobile viewing */
        border-radius: var(--border-radius-sm);
    }
}

/* ===================================
   TECHNOLOGY SECTION
   =================================== */

.technology {
    padding: var(--spacing-xxl) 0;
    background: var(--off-white);
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.feature-card {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.feature-icon i {
    font-size: 2rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

.tech-specs {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.tech-specs h3 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

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

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--off-white);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--crimson);
}

.spec-label {
    font-weight: 500;
    color: var(--dark-gray);
}

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

/* ===================================
   APPLICATIONS SECTION
   =================================== */

.applications {
    padding: var(--spacing-xxl) 0;
    background: var(--white);
}

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

.application-card {
    background: var(--off-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    border: 1px solid transparent;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--crimson-light);
}

.app-image {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.app-image i {
    font-size: 2.5rem;
    color: var(--white);
}

.application-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

.application-card p {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.app-features {
    list-style: none;
}

.app-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.app-features i {
    color: var(--crimson);
    font-size: 0.8rem;
}

/* ===================================
   BENEFITS SECTION
   =================================== */

.benefits {
    padding: var(--spacing-xxl) 0;
    background: var(--off-white);
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.benefits-visual {
    display: flex;
    justify-content: center;
}

.benefit-chart {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 400px;
}

.chart-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.chart-bar {
    flex: 1;
    height: 40px;
    background: var(--light-gray);
    border-radius: var(--border-radius-md);
    position: relative;
    overflow: hidden;
}

.chart-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    transition: width 2s ease;
    width: 0;
}

.chart-bar[data-value="85"]::after { width: 85%; }
.chart-bar[data-value="70"]::after { width: 70%; }
.chart-bar[data-value="90"]::after { width: 90%; }
.chart-bar[data-value="75"]::after { width: 75%; }

.chart-label {
    font-weight: 500;
    color: var(--dark-gray);
    min-width: 120px;
}

.benefits-list {
    display: grid;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.benefit-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.benefit-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.benefit-content p {
    color: var(--medium-gray);
    line-height: 1.5;
}

/* ===================================
   INNOVATION SECTION
   =================================== */

.innovation {
    padding: var(--spacing-xxl) 0;
    background: var(--gradient-secondary);
    color: var(--white);
}

.innovation-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.innovation-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.innovation-text p {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.innovation-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    backdrop-filter: blur(10px);
}

.highlight-item i {
    color: var(--crimson-light);
    font-size: 1.25rem;
}

.patent-diagram {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
}

.diagram-layer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.layer-item {
    padding: var(--spacing-md);
    background: rgba(164, 52, 58, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    text-align: center;
    font-weight: 500;
    transition: var(--transition-normal);
}

.layer-item:hover {
    background: rgba(164, 52, 58, 0.5);
    transform: translateX(10px);
}

/* ===================================
   CONTACT SECTION
   =================================== */

.contact {
    padding: var(--spacing-xxl) 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--off-white);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-normal);
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--medium-gray);
}

.contact-form {
    background: var(--off-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--crimson);
    box-shadow: 0 0 0 3px rgba(164, 52, 58, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    max-width: 400px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--crimson-light);
    margin-bottom: var(--spacing-md);
}

.brand-logo i {
    font-size: 1.75rem;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.link-group h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.link-group a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-xs);
    transition: var(--transition-fast);
}

.link-group a:hover {
    color: var(--crimson-light);
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding-top: var(--spacing-lg);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    /* Hero */
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .tech-grid {
        max-width: 300px;
        margin: 0 auto;
    }
    
    /* Benefits */
    .benefits-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .benefit-chart {
        max-width: 100%;
    }
    
    /* Innovation */
    .innovation-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    /* Typography */
    .section-header h2 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    /* Spacing */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .tech-features,
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* ===================================
   ANIMATIONS
   =================================== */

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

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

/* ===================================
   UTILITY CLASSES
   =================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.align-center { align-items: center; }
.justify-center { justify-content: center; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
/* ===================================
   NAV LOGO IMG (overrides fontawesome microchip from genspark base)
   =================================== */
.nav-logo-img {
    height: 32px;
    width: 32px;
    object-fit: contain;
}
.nav-brand {
    text-decoration: none;
}
.nav-cta {
    padding: 8px 16px !important;
    font-size: 0.9rem !important;
    margin-left: var(--spacing-sm);
}

/* ===================================
   NDA MODAL
   =================================== */
.nda-modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    overflow-y: auto;
}
.nda-modal[hidden] { display: none; }

.nda-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
}

.nda-dialog {
    position: relative;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 900px;
    width: 100%;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.nda-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: transparent;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--medium-gray);
    cursor: pointer;
    z-index: 2;
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}
.nda-close:hover {
    color: var(--crimson);
    background: var(--off-white);
}

.nda-header {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    background: var(--gradient-primary);
    color: var(--white);
}
.nda-logo {
    width: 56px;
    height: 56px;
    background: var(--white);
    border-radius: var(--border-radius-md);
    padding: 6px;
    flex-shrink: 0;
}
.nda-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
}
.nda-subtitle {
    margin: 4px 0 0;
    font-size: 0.9rem;
    opacity: 0.92;
}

.nda-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.nda-legal {
    background: var(--off-white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    max-height: 360px;
    overflow-y: auto;
    border: 1px solid var(--light-gray);
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--dark-gray);
}
.nda-legal h4 {
    color: var(--crimson);
    margin: var(--spacing-md) 0 var(--spacing-xs);
    font-size: 1rem;
    font-weight: 700;
}
.nda-legal h4:first-child { margin-top: 0; }
.nda-legal p { margin-bottom: var(--spacing-xs); }
.nda-legal strong { color: var(--dark-gray); }

.nda-section-title {
    color: var(--crimson);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--crimson);
}

.nda-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}
@media (max-width: 640px) {
    .nda-row { grid-template-columns: 1fr; }
}

.nda-form .form-group {
    margin-bottom: var(--spacing-sm);
}
.nda-form label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--dark-gray);
    font-size: 0.92rem;
}
.nda-form .req { color: var(--crimson); }
.nda-form input[type="text"],
.nda-form input[type="email"],
.nda-form input[type="tel"],
.nda-form select,
.nda-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: 1rem;
    background: var(--white);
    color: var(--dark-gray);
    transition: var(--transition-fast);
}
.nda-form input:focus,
.nda-form select:focus,
.nda-form textarea:focus {
    outline: none;
    border-color: var(--crimson);
    box-shadow: 0 0 0 3px rgba(164, 52, 58, 0.12);
}

.nda-signature input {
    font-family: 'Brush Script MT', 'Lucida Handwriting', cursive !important;
    font-size: 1.4rem !important;
    color: var(--crimson) !important;
    letter-spacing: 1px;
}
.nda-hint {
    font-size: 0.82rem;
    color: var(--medium-gray);
    margin-top: 4px;
}

.nda-consent {
    background: var(--off-white);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--crimson);
}
.nda-checkbox {
    display: flex;
    gap: var(--spacing-xs);
    align-items: flex-start;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--dark-gray);
    line-height: 1.5;
}
.nda-checkbox input[type="checkbox"] {
    margin-top: 3px;
    width: 18px;
    height: 18px;
    accent-color: var(--crimson);
    flex-shrink: 0;
}

.nda-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--light-gray);
}

.nda-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-weight: 500;
}
.nda-result.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}
.nda-result.error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

body.nda-open { overflow: hidden; }

@media (max-width: 768px) {
    .nda-modal { padding: 0; }
    .nda-dialog { max-height: 100vh; border-radius: 0; }
    .nda-header { padding: var(--spacing-md); }
    .nda-header h2 { font-size: 1.15rem; }
    .nda-body { padding: var(--spacing-md); }
}