/* ===================================
   UAVResearch Landing Page - Main Styles
   =================================== */

/* CSS Variables */
:root {
    /* Primary Colors */
    --primary-blue: #007bff;
    --dark-blue: #0056b3;
    --success-green: #28a745;
    --warning-orange: #ffc107;
    --danger-red: #dc3545;
    
    /* Neutral Colors */
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    
    /* Gradients */
    --hero-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --section-gradient: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
    
    /* Typography */
    --font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-code: 'Fira Code', 'Consolas', 'Monaco', monospace;
    
    /* Font Sizes */
    --h1-size: 3rem;
    --h2-size: 2.5rem;
    --h3-size: 2rem;
    --h4-size: 1.5rem;
    --body-size: 1rem;
    --small-size: 0.875rem;
    
    /* Spacing */
    --section-padding: 80px 20px;
    --card-padding: 30px;
    --element-spacing: 20px;
    --grid-gap: 30px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--body-size);
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: var(--h1-size); }
h2 { font-size: var(--h2-size); }
h3 { font-size: var(--h3-size); }
h4 { font-size: var(--h4-size); }

p {
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--dark-blue);
}

/* ===================================
   Container & Layout
   =================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: var(--section-padding);
}

/* ===================================
   Buttons
   =================================== */

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: var(--dark-blue);
    border-color: var(--dark-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--gray);
    color: var(--white);
    border-color: var(--gray);
}

.btn-secondary:hover {
    background-color: #5a6268;
    border-color: #5a6268;
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.125rem;
}

/* ===================================
   Navigation Bar
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    text-decoration: none;
}

.logo:hover {
    color: var(--dark-blue);
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--dark);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-blue);
}

.nav-cta {
    margin-left: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--dark);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hero-gradient);
    color: var(--white);
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

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

.hero-media {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.feature-icon {
    font-size: 1.5rem;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    opacity: 0.8;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-left: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(-45deg);
    margin: 10px auto 0;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(-45deg); }
    40% { transform: translateY(-10px) rotate(-45deg); }
    60% { transform: translateY(-5px) rotate(-45deg); }
}

/* ===================================
   Section Headers
   =================================== */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    color: var(--dark);
    margin-bottom: 1rem;
}

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

/* ===================================
   Features Section
   =================================== */

.features {
    background: var(--section-gradient);
}

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

.feature-card {
    background: var(--white);
    padding: var(--card-padding);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.feature-icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon-large {
    font-size: 2.5rem;
}

.feature-title {
    color: var(--dark);
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray);
}

.feature-list li::before {
    content: "OK";
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
}

/* ===================================
   Technology Section
   =================================== */

.technology {
    background: var(--white);
}

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

.tech-category {
    background: var(--light-gray);
    padding: var(--card-padding);
    border-radius: var(--radius-lg);
}

.tech-category-title {
    color: var(--dark);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-blue);
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--white);
    padding: 1rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

.tech-logo {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-gray);
    border-radius: var(--radius-md);
}

.tech-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.tech-info p {
    font-size: var(--small-size);
    color: var(--gray);
    margin: 0;
}

/* ===================================
   Screenshots Gallery
   =================================== */

.screenshots {
    background: var(--section-gradient);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--grid-gap);
    margin-bottom: 2rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    aspect-ratio: 16/9;
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.gallery-note {
    text-align: center;
    color: var(--gray);
    font-style: italic;
}

/* ===================================
   Investors Section
   =================================== */

.investors {
    background: var(--white);
}

.investor-content {
    max-width: 1000px;
    margin: 0 auto;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.metric-card {
    background: var(--light-gray);
    padding: 2rem 1rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.metric-card:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-5px);
}

.metric-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: var(--small-size);
    color: var(--gray);
}

.metric-card:hover .metric-label {
    color: rgba(255, 255, 255, 0.9);
}

.investor-section {
    margin-bottom: 4rem;
}

.investor-section-title {
    color: var(--dark);
    margin-bottom: 2rem;
    text-align: center;
}

.opportunity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.opportunity-item {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.opportunity-item h4 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.opportunity-item p {
    color: var(--gray);
    margin: 0;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.advantage-item {
    display: flex;
    gap: 1.5rem;
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.advantage-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.advantage-content h4 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.advantage-content p {
    color: var(--gray);
    margin: 0;
}

.investor-cta {
    background: var(--hero-gradient);
    color: var(--white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.investor-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.investor-cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.investor-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

/* ===================================
   Download Section
   =================================== */

.download {
    background: var(--section-gradient);
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--grid-gap);
    margin-bottom: 4rem;
}

.download-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.download-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.download-card h3 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.download-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.quick-start {
    max-width: 800px;
    margin: 0 auto 4rem;
}

.quick-start h3 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.code-block {
    position: relative;
    background: var(--dark);
    color: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-family: var(--font-code);
    font-size: 0.9rem;
    line-height: 1.6;
}

.code-block code {
    font-family: var(--font-code);
}

.copy-button {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--small-size);
    transition: all var(--transition-fast);
}

.copy-button:hover {
    background: var(--dark-blue);
}

.documentation-links {
    max-width: 800px;
    margin: 0 auto;
}

.documentation-links h3 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.doc-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.doc-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.doc-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--primary-blue);
}

.doc-icon {
    font-size: 1.5rem;
}

/* ===================================
   CTA Sections
   =================================== */

.cta-sections {
    background: var(--white);
    padding: 4rem 20px;
}

.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--grid-gap);
}

.cta-card {
    background: var(--light-gray);
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.cta-card h3 {
    color: var(--dark);
    margin-bottom: 1rem;
}

.cta-card p {
    color: var(--gray);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

/* ===================================
   Contact Section
   =================================== */

.contact {
    background: var(--section-gradient);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.contact-alternative {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-alternative h3 {
    color: var(--dark);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.contact-method:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
    color: var(--primary-blue);
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-method h4 {
    margin-bottom: 0.25rem;
    color: var(--dark);
}

.contact-method p {
    margin: 0;
    color: var(--gray);
    font-size: var(--small-size);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background: var(--dark);
    color: var(--white);
    padding: 4rem 20px 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--small-size);
}

.footer-badges {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: var(--small-size);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--small-size);
    margin: 0;
}

.footer-tagline {
    margin-top: 0.5rem !important;
}

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

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: all var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
}

/* ===================================
   Utility Classes
   =================================== */

.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

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

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* Made with Bob */
/* ===================================
   Modern Product Refresh
   =================================== */

:root {
    --primary-blue: #0f6bff;
    --dark-blue: #0847b8;
    --success-green: #18a058;
    --warning-orange: #f59e0b;
    --danger-red: #e5484d;
    --dark: #111827;
    --gray: #64748b;
    --light-gray: #f4f7fb;
    --white: #ffffff;
    --ink-soft: #334155;
    --surface: #ffffff;
    --surface-muted: #eef4fb;
    --line: #dbe5ef;
    --hero-gradient: radial-gradient(circle at 15% 18%, rgba(15, 107, 255, 0.18), transparent 28%), radial-gradient(circle at 82% 24%, rgba(20, 184, 166, 0.18), transparent 30%), linear-gradient(135deg, #07111f 0%, #102033 52%, #13251f 100%);
    --section-gradient: linear-gradient(180deg, #f7fafc 0%, #ffffff 100%);
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 14px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 24px 54px rgba(15, 23, 42, 0.14);
    --shadow-xl: 0 34px 80px rgba(2, 6, 23, 0.24);
    --radius-lg: 8px;
    --radius-xl: 8px;
}

body {
    color: var(--dark);
    background: #fbfdff;
}

section {
    scroll-margin-top: 84px;
}

.navbar {
    background: rgba(255, 255, 255, 0.84);
    border-bottom: 1px solid rgba(219, 229, 239, 0.9);
    box-shadow: none;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

.logo {
    color: var(--dark);
    letter-spacing: 0;
}

.logo-text::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-right: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0f6bff, #19c7a5);
    box-shadow: 0 0 0 6px rgba(15, 107, 255, 0.1);
    vertical-align: 1px;
}

.nav-link {
    color: #334155;
    font-size: 0.94rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border-radius: 8px;
    box-shadow: none;
}

.btn-primary {
    background: #0f6bff;
    border-color: #0f6bff;
    color: #fff;
}

.btn-primary:hover {
    background: #0847b8;
    border-color: #0847b8;
    box-shadow: 0 12px 24px rgba(15, 107, 255, 0.24);
}

.btn-secondary,
.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.btn-secondary:hover,
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.42);
    color: #fff;
}

section:not(.hero) .btn-outline,
.download-card .btn-outline,
.cta-card .btn-outline,
.investor-cta .btn-outline {
    color: var(--primary-blue);
    border-color: rgba(15, 107, 255, 0.35);
    background: #fff;
}

section:not(.hero) .btn-outline:hover,
.download-card .btn-outline:hover,
.cta-card .btn-outline:hover,
.investor-cta .btn-outline:hover {
    background: #edf5ff;
    color: var(--dark-blue);
}

.hero {
    min-height: 92vh;
    align-items: center;
    justify-content: center;
    background: var(--hero-gradient);
    padding: 120px 0 72px;
}

.hero::after {
    content: '';
    position: absolute;
    inset: auto 0 0;
    height: 180px;
    background: linear-gradient(180deg, transparent, rgba(251, 253, 255, 0.96));
    pointer-events: none;
}

.hero-overlay {
    background: linear-gradient(90deg, rgba(4, 10, 20, 0.7), rgba(4, 10, 20, 0.14));
}

.hero-media {
    opacity: 0.24;
    background-image: linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(90deg, #000, transparent 78%);
}

.hero-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1.05fr);
    gap: 56px;
    align-items: center;
}

.hero-content {
    text-align: left;
    max-width: 720px;
    margin: 0;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: #b8f7e6;
    background: rgba(255, 255, 255, 0.08);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-title {
    max-width: 760px;
    font-size: clamp(2.6rem, 6vw, 5.4rem);
    line-height: 0.98;
    margin-bottom: 1.4rem;
    text-shadow: none;
}

.hero-subtitle {
    max-width: 620px;
    color: #d7e2ef;
    font-size: clamp(1.05rem, 1.5vw, 1.28rem);
    line-height: 1.7;
    opacity: 1;
}

.hero-features {
    justify-content: flex-start;
    gap: 0.8rem;
    margin: 2rem 0;
}

.hero-feature {
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: #eef6ff;
    backdrop-filter: blur(14px);
}

.feature-icon,
.feature-icon-large,
.tech-logo,
.placeholder-icon,
.metric-icon,
.download-icon,
.doc-icon,
.contact-icon,
.advantage-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: #0f6bff;
}

.feature-icon {
    min-width: 34px;
    height: 26px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.12);
    color: #b8f7e6;
}

.hero-cta {
    justify-content: flex-start;
}

.hero-visual {
    position: relative;
    min-width: 0;
}

.control-window {
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    background: rgba(9, 18, 32, 0.78);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(18px);
}

.window-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: #dbeafe;
    font-size: 0.84rem;
}

.window-bar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ef4444;
}

.window-bar span:nth-child(2) { background: #f59e0b; }
.window-bar span:nth-child(3) { background: #22c55e; margin-right: 8px; }

.control-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.85fr;
    gap: 14px;
    padding: 16px;
}

.map-panel,
.telemetry-panel,
.mission-panel {
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.8);
}

.map-panel {
    position: relative;
    min-height: 360px;
    overflow: hidden;
    grid-row: span 2;
    background-image: linear-gradient(rgba(148, 163, 184, 0.14) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.14) 1px, transparent 1px), radial-gradient(circle at 72% 34%, rgba(20, 184, 166, 0.22), transparent 30%);
    background-size: 34px 34px, 34px 34px, auto;
}

.route-line {
    position: absolute;
    left: 18%;
    top: 32%;
    width: 58%;
    height: 38%;
    border: 2px solid rgba(20, 184, 166, 0.72);
    border-left: 0;
    border-bottom: 0;
    transform: skewY(-12deg);
}

.drone-marker {
    position: absolute;
    z-index: 2;
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: #eaf2ff;
    color: #0f172a;
    box-shadow: 0 0 0 8px rgba(15, 107, 255, 0.15);
}

.marker-one { left: 16%; top: 28%; }
.marker-two { left: 58%; top: 24%; }
.marker-three { left: 68%; top: 62%; }

.zone-ring {
    position: absolute;
    right: 12%;
    bottom: 13%;
    width: 140px;
    height: 140px;
    border: 1px dashed rgba(184, 247, 230, 0.7);
    border-radius: 50%;
}

.telemetry-panel,
.mission-panel {
    padding: 16px;
}

.panel-title {
    margin-bottom: 14px;
    color: #b8f7e6;
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.09em;
}

.telemetry-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
    color: #cbd5e1;
    font-size: 0.9rem;
}

.telemetry-row strong {
    color: #ffffff;
}

.signal-bars {
    display: flex;
    align-items: end;
    gap: 7px;
    height: 58px;
    margin-top: 16px;
}

.signal-bars span {
    flex: 1;
    border-radius: 4px 4px 0 0;
    background: linear-gradient(180deg, #19c7a5, #0f6bff);
}

.signal-bars span:nth-child(1) { height: 44%; }
.signal-bars span:nth-child(2) { height: 72%; }
.signal-bars span:nth-child(3) { height: 58%; }
.signal-bars span:nth-child(4) { height: 88%; }

.mission-step {
    margin-top: 10px;
    padding: 11px 12px;
    border-radius: 8px;
    color: #cbd5e1;
    background: rgba(255, 255, 255, 0.06);
}

.mission-step.active {
    color: #06111f;
    background: #b8f7e6;
}

.section-header {
    max-width: 760px;
    margin: 0 auto 3.5rem;
}

.section-title {
    letter-spacing: 0;
}

.section-subtitle {
    color: #64748b;
}

.feature-card,
.tech-category,
.metric-card,
.opportunity-item,
.advantage-item,
.download-card,
.cta-card,
.contact-form,
.contact-method,
.doc-link {
    border: 1px solid var(--line);
    box-shadow: 0 12px 34px rgba(15, 23, 42, 0.06);
}

.feature-card,
.download-card,
.cta-card,
.contact-form {
    background: rgba(255, 255, 255, 0.92);
}

.feature-card:hover,
.download-card:hover,
.gallery-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.12);
}

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    background: #eef6ff;
    border: 1px solid #d8e7fb;
}

.feature-icon-large {
    color: #0847b8;
}

.feature-title,
.tech-category-title,
.investor-section-title {
    color: #0f172a;
}

.feature-list li {
    color: #475569;
}

.feature-list li::before {
    content: '';
    top: 0.95rem;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success-green);
}

.tech-category {
    background: #f8fbff;
}

.tech-category-title {
    border-bottom-color: #dbeafe;
}

.tech-item {
    border: 1px solid #e2e8f0;
}

.tech-logo,
.doc-icon,
.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: #eef6ff;
}

.gallery-placeholder {
    align-items: flex-start;
    justify-content: flex-end;
    min-height: 240px;
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(15, 107, 255, 0.72)), linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px);
    background-size: auto, 32px 32px, 32px 32px;
    text-align: left;
}

.placeholder-icon,
.download-icon,
.metric-icon,
.advantage-icon {
    min-width: 54px;
    height: 38px;
    padding: 0 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.92);
}

.gallery-placeholder p {
    max-width: 260px;
    margin: 16px 0 0;
    font-size: 1.1rem;
    font-weight: 700;
}

.gallery-note {
    display: none;
}

.metric-card:hover {
    background: #0f172a;
}

.investor-cta {
    background: linear-gradient(135deg, #0f172a, #0f6bff);
}

.code-block {
    background: #0f172a;
    border: 1px solid #223044;
}

.form-group input,
.form-group select,
.form-group textarea {
    border-color: #dbe5ef;
    background: #fbfdff;
}

.footer {
    background: #08111f;
}

.badge {
    background: rgba(184, 247, 230, 0.12);
    color: #b8f7e6;
    border: 1px solid rgba(184, 247, 230, 0.22);
}

.scroll-progress {
    background: linear-gradient(90deg, #0f6bff, #19c7a5);
}