/* ============================================
   SkyPulse - Modern Drone Components Landing Page
   ============================================ */

/* CSS Variables */
:root {
    --color-bg-deep: #030816;
    --color-bg-sidebar: #0F172A;
    --color-bg-card: #1E293B;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #94A3B8;
    --color-status-success: #10B981;
    --color-status-warning: #F59E0B;
    --color-accent-blue: #3B82F6;
    --color-accent-purple: #8B5CF6;
    --color-accent-red: #EF4444;
    --color-accent-cyan: #06B6D4;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(16, 185, 129, 0.15);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-deep);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Animated Background
   ============================================ */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.grid-svg {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-status-success) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--color-accent-blue) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.glow-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--color-accent-purple) 0%, transparent 70%);
    top: 40%;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(-30px, -10px) scale(1.05); }
}

/* ============================================
   Container
   ============================================ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(3, 8, 22, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-img {
    height: 28px;
    width: auto;
}

.logo-path {
    stroke-dasharray: 200;
    stroke-dashoffset: 200;
    animation: drawLogo 2s ease forwards;
}

.logo-inner {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards 1.5s;
}

@keyframes drawLogo {
    to { stroke-dashoffset: 0; }
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-status-success), var(--color-accent-blue));
    transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    font-family: var(--font-sans);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-status-success), var(--color-accent-blue));
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid rgba(148, 163, 184, 0.2);
}

.btn-secondary:hover {
    background: var(--color-bg-sidebar);
    border-color: var(--color-status-success);
}

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

.btn-outline:hover {
    background: rgba(16, 185, 129, 0.1);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding: 120px 24px 80px;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--color-status-success);
    margin-bottom: 24px;
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    background: var(--color-status-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-status-success), var(--color-accent-blue), var(--color-accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, transparent, var(--color-text-secondary), transparent);
}

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

.drone-svg {
    width: 100%;
    max-width: 500px;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(16, 185, 129, 0.2));
}

/* Drone SVG Animations */
.board {
    animation: boardGlow 3s ease-in-out infinite;
}

@keyframes boardGlow {
    0%, 100% { filter: drop-shadow(0 0 5px rgba(16, 185, 129, 0.3)); }
    50% { filter: drop-shadow(0 0 15px rgba(16, 185, 129, 0.5)); }
}

.trace {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    animation: traceDraw 3s linear infinite;
}

.trace-1 { animation-delay: 0s; }
.trace-2 { animation-delay: 0.5s; }
.trace-3 { animation-delay: 1s; }
.trace-4 { animation-delay: 1.5s; }
.trace-5 { animation-delay: 2s; }
.trace-6 { animation-delay: 2.5s; }

@keyframes traceDraw {
    0% { stroke-dashoffset: 100; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -100; }
}

.pulse-dot {
    animation: pulseDot 2s ease-in-out infinite;
}

.pulse-1 { animation-delay: 0s; }
.pulse-2 { animation-delay: 0.3s; }
.pulse-3 { animation-delay: 0.6s; }
.pulse-4 { animation-delay: 0.9s; }
.pulse-5 { animation-delay: 1.2s; }
.pulse-6 { animation-delay: 1.5s; }

@keyframes pulseDot {
    0%, 100% { r: 3; opacity: 1; }
    50% { r: 5; opacity: 0.6; }
}

.float {
    animation: floatElement 4s ease-in-out infinite;
}

.float-1 { animation-delay: 0s; }
.float-2 { animation-delay: 1s; }
.float-3 { animation-delay: 2s; }
.float-4 { animation-delay: 3s; }

@keyframes floatElement {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.flow-path {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: flowAnimation 2s linear infinite;
}

.flow-1 { animation-delay: 0s; }
.flow-2 { animation-delay: 1s; }

@keyframes flowAnimation {
    to { stroke-dashoffset: -50; }
}

/* ============================================
   Section Styles
   ============================================ */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-status-success);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ============================================
   Products Section
   ============================================ */
.products {
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, var(--color-bg-sidebar) 100%);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-glow);
}

.product-card.featured {
    grid-column: span 1;
    background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-sidebar));
    border-color: var(--color-status-success);
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(135deg, var(--color-status-success), var(--color-accent-blue));
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
}

.product-visual {
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(59, 130, 246, 0.05));
    min-height: 180px;
}

.product-svg {
    width: 100%;
    max-width: 200px;
    height: auto;
}

.product-info {
    padding: 24px;
}

.product-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.product-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.product-specs {
    list-style: none;
    margin-bottom: 20px;
}

.product-specs li {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    font-size: 0.85rem;
}

.product-specs li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--color-text-secondary);
}

.spec-value {
    color: var(--color-status-success);
    font-family: var(--font-mono);
    font-weight: 500;
}

/* ============================================
   Technology Section
   ============================================ */
.technology {
    background: var(--color-bg-deep);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.tech-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all var(--transition-base);
}

.tech-card:hover {
    transform: translateY(-4px);
    border-color: rgba(16, 185, 129, 0.3);
    box-shadow: var(--shadow-glow);
}

.tech-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
}

.tech-icon svg {
    width: 100%;
    height: 100%;
}

.tech-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text-primary);
}

.tech-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ============================================
   Specifications Section
   ============================================ */
.specifications {
    background: linear-gradient(180deg, var(--color-bg-sidebar) 0%, var(--color-bg-deep) 100%);
}

.specs-table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.1);
    background: var(--color-bg-card);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.specs-table th,
.specs-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.specs-table th {
    background: var(--color-bg-sidebar);
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
}

.specs-table th:first-child {
    border-right: 1px solid rgba(148, 163, 184, 0.1);
}

.specs-table td:first-child {
    font-weight: 500;
    color: var(--color-text-secondary);
    border-right: 1px solid rgba(148, 163, 184, 0.1);
    background: rgba(15, 23, 42, 0.5);
}

.specs-table td:not(:first-child) {
    font-family: var(--font-mono);
    color: var(--color-status-success);
}

.specs-table tbody tr:hover {
    background: rgba(16, 185, 129, 0.05);
}

.specs-table tbody tr:last-child td {
    border-bottom: none;
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-bg-sidebar), var(--color-bg-deep));
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.cta-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
}

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

.cta-drone {
    width: 100%;
    max-width: 300px;
    filter: drop-shadow(0 0 20px rgba(16, 185, 129, 0.3));
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: var(--color-bg-deep);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--color-text-secondary);
}

.contact-item svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-status-success);
    flex-shrink: 0;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--color-status-success);
    color: var(--color-status-success);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

/* Contact Form */
.contact-form {
    background: var(--color-bg-card);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--color-text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    background: var(--color-bg-sidebar);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-secondary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-status-success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

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

/* Platforms Showcase - Animated Icons */
.platforms-showcase {
    position: relative;
    width: 100%;
    height: 400px;
    min-height: 350px;
}

.platform-icon {
    position: absolute;
    width: 120px;
    height: 120px;
    left: var(--x, 50%);
    top: var(--y, 50%);
    opacity: 0;
    animation: iconFadeIn 0.8s ease forwards, iconFloat 6s ease-in-out infinite;
    animation-delay: var(--delay, 0s), calc(var(--delay, 0s) + 0.8s);
    filter: drop-shadow(0 10px 30px rgba(247, 147, 30, 0.2));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.platform-icon:hover {
    transform: scale(1.15) translateY(-5px);
    filter: drop-shadow(0 15px 40px rgba(247, 147, 30, 0.4));
}

.platform-icon svg {
    width: 100%;
    height: 100%;
}

/* Individual icon sizes for variety */
.platform-quad { width: 140px; height: 140px; }
.platform-hexa { width: 120px; height: 150px; }
.platform-plane { width: 150px; height: 110px; }
.platform-rover { width: 120px; height: 100px; }
.platform-boat { width: 130px; height: 110px; }
.platform-robot { width: 100px; height: 120px; }

@keyframes iconFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Quadcopter yaw animation - oscillating rotation left/right */
.quad-rotate {
    transform-box: fill-box;
    transform-origin: center center;
    animation: quadYaw 4s ease-in-out infinite;
}

@keyframes quadYaw {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(45deg); }
}

/* Hexacopter lifting animation */
.hexa-lift {
    animation: hexaLift 3s ease-in-out infinite;
}

@keyframes hexaLift {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Clouds moving animation for plane */
.clouds-move {
    animation: cloudsMove 4s linear infinite;
}

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

/* Antenna blink */
.antenna-blink {
    animation: antennaBlink 2s ease-in-out infinite;
}

@keyframes antennaBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Eye blink for robot */
.eye-blink {
    animation: eyeBlink 3s ease-in-out infinite;
}

@keyframes eyeBlink {
    0%, 90%, 100% { opacity: 1; transform: scaleY(1); }
    95% { opacity: 0.5; transform: scaleY(0.1); }
}

/* LED blink */
.led-blink {
    animation: ledBlink 1s ease-in-out infinite;
}

.led-blink-delay {
    animation: ledBlink 1s ease-in-out infinite 0.5s;
}

@keyframes ledBlink {
    0%, 100% { opacity: 0.9; }
    50% { opacity: 0.3; }
}

/* Wave motion for boat */
.wave-motion {
    animation: waveMove 2s ease-in-out infinite;
}

.wave-motion-delay {
    animation: waveMove 2s ease-in-out infinite 0.3s;
}

@keyframes waveMove {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(8px); }
}

/* Floating particles */
.contact-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.contact-particles span {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #f7931e;
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 8s ease-in-out infinite;
}

.contact-particles span:nth-child(1) { left: 20%; animation-delay: 0s; }
.contact-particles span:nth-child(2) { left: 40%; animation-delay: 1.5s; }
.contact-particles span:nth-child(3) { left: 60%; animation-delay: 3s; }
.contact-particles span:nth-child(4) { left: 75%; animation-delay: 4.5s; }
.contact-particles span:nth-child(5) { left: 90%; animation-delay: 6s; }

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100%) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-400px) scale(1);
    }
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .platforms-showcase {
        height: 350px;
        margin-top: 40px;
    }

    .platform-icon {
        width: 100px;
        height: 100px;
    }

    .platform-quad { width: 120px; height: 120px; }
    .platform-hexa { width: 100px; height: 125px; }
    .platform-plane { width: 130px; height: 95px; }
    .platform-rover { width: 100px; height: 85px; }
    .platform-boat { width: 110px; height: 95px; }
    .platform-robot { width: 85px; height: 100px; }
}

@media (max-width: 768px) {
    .platforms-showcase {
        height: 300px;
    }

    .platform-icon {
        width: 80px;
        height: 80px;
    }

    .platform-quad { width: 100px; height: 100px; }
    .platform-hexa { width: 85px; height: 105px; }
    .platform-plane { width: 110px; height: 80px; }
    .platform-rover { width: 85px; height: 70px; }
    .platform-boat { width: 90px; height: 80px; }
    .platform-robot { width: 70px; height: 85px; }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-sidebar);
    padding: 80px 0 32px;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.footer-simple {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    padding: 40px 0;
}

.footer-simple .logo {
    margin-bottom: 8px;
}

.footer-simple p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 400px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
    color: var(--color-text-primary);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--color-status-success);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 100px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .drone-svg {
        max-width: 400px;
    }

    .cta-section .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-buttons {
        justify-content: center;
    }

    .cta-visual {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-info .section-title {
        text-align: center;
    }

    .contact-details {
        align-items: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .navbar .btn {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .specs-table {
        font-size: 0.8rem;
    }

    .specs-table th,
    .specs-table td {
        padding: 12px;
    }

    .contact-form {
        padding: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    section {
        padding: 60px 0;
    }

    .hero {
        padding: 80px 16px 60px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }

    .product-visual {
        padding: 24px;
    }

    .product-info {
        padding: 20px;
    }
}

/* ============================================
   Animation Utilities
   ============================================ */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Hero Sections - Apple Style
   ============================================ */
.hero-section {
    min-height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 80px 24px;
}

.hero-section-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

.hero-text {
    z-index: 10;
}

.hero-section-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-section-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 500px;
}

/* Gradient text variations */
.gradient-text-purple {
    background: linear-gradient(135deg, #8B5CF6, #A855F7, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-green {
    background: linear-gradient(135deg, #10B981, #06B6D4, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-orange {
    background: linear-gradient(135deg, #F59E0B, #EF4444, #F97316);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section tags */
.section-tag.purple {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
    color: #8B5CF6;
}

.section-tag.green {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #10B981;
}

.section-tag.orange {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #F59E0B;
}

/* ============================================
   Section 1: Cameras Hero
   ============================================ */
.cameras-section {
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, var(--color-bg-sidebar) 50%, var(--color-bg-deep) 100%);
}

.camera-hero-image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.camera-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, transparent 70%);
    filter: blur(60px);
    z-index: 0;
}

.floating-image {
    max-width: 90%;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 40px rgba(245, 158, 11, 0.2));
    animation: gentleFloat 6s ease-in-out infinite;
    z-index: 1;
    position: relative;
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Camera Types Grid */
.camera-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.camera-type {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.15);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-base);
    position: relative;
    backdrop-filter: blur(10px);
}

.camera-type:hover {
    border-color: rgba(245, 158, 11, 0.4);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.1);
}

.camera-type.featured {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.05);
}

.camera-type-badge {
    position: absolute;
    top: -8px;
    right: 12px;
    background: linear-gradient(135deg, #10B981, #059669);
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.camera-type-badge.new {
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
}

.camera-type-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    flex-shrink: 0;
}

.camera-type-icon svg {
    width: 24px;
    height: 24px;
    stroke: #F59E0B;
}

.camera-type-icon.mipi {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
}
.camera-type-icon.mipi svg { stroke: #3B82F6; }

.camera-type-icon.pro {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}
.camera-type-icon.pro svg { stroke: #10B981; }

.camera-type-icon.ip {
    background: rgba(139, 92, 246, 0.1);
    border-color: rgba(139, 92, 246, 0.3);
}
.camera-type-icon.ip svg { stroke: #8B5CF6; }

.camera-type-info h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.camera-type-info p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.camera-type-info .price {
    font-size: 1.25rem;
    font-weight: 800;
    color: #10B981;
    font-family: var(--font-mono);
}

/* ============================================
   Stack Sections (12S & 8S)
   ============================================ */
.stack-section {
    position: relative;
}

.stack-section-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.stack-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
}

.stack-glow-purple {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #8B5CF6 0%, transparent 70%);
    top: 10%;
    right: -200px;
}

.stack-glow-blue {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #3B82F6 0%, transparent 70%);
    bottom: 10%;
    left: -150px;
}

.stack-glow-green {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #10B981 0%, transparent 70%);
    top: 10%;
    left: -200px;
}

.stack-glow-cyan {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #06B6D4 0%, transparent 70%);
    bottom: 10%;
    right: -150px;
}

.stack-12s-section {
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, #0a0f1a 50%, var(--color-bg-deep) 100%);
}

.stack-8s-section {
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, #051010 50%, var(--color-bg-deep) 100%);
}

.stack-content {
    position: relative;
    z-index: 10;
}

.stack-content.reverse {
    direction: rtl;
}

.stack-content.reverse > * {
    direction: ltr;
}

/* Stack Specs */
.stack-specs {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}

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

.stack-spec .spec-value {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    display: block;
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stack-spec .spec-label {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Stack Price */
.stack-price {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    padding: 12px 24px;
}

.stack-price.green {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}

.stack-price.orange {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
}

.stack-price-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.stack-price-value {
    font-size: 1.75rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--color-text-primary);
}

.stack-price-tag {
    background: linear-gradient(135deg, #8B5CF6, #A855F7);
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.stack-price-tag.popular {
    background: linear-gradient(135deg, #10B981, #059669);
}

.stack-price-tag.new {
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
}

/* Stack Assembly Animation Container */
.stack-assembly {
    position: relative;
    width: 100%;
    max-width: 600px;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.stack-layer {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    will-change: transform, opacity;
}

.stack-board {
    height: auto;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.5));
}

/* ESC Layer - bottom board, 20% bigger than FC */
.esc-layer {
    z-index: 1;
}

.esc-layer .stack-board {
    max-width: 700px; /* ~30% bigger than FC */
}

/* FC Layer - top board */
.fc-layer {
    z-index: 2;
}

.fc-layer .stack-board {
    max-width: 450px;
}

/* 8S Stack - slightly smaller ESC only */
.stack-8s-section .esc-layer .stack-board {
    max-width: 582px; /* 5% smaller: 550 * 0.95 = 522 */
}

/* Stack Pulse Effect */
.stack-pulse-effect {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.8s ease;
    pointer-events: none;
    z-index: 0;
}

.stack-pulse-effect.green {
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
}

.stack-pulse-effect.active {
    opacity: 1;
    transform: scale(1);
    animation: pulseWave 2s ease-in-out infinite;
}

@keyframes pulseWave {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 1;
    }
}

/* Shadow Splash Effect - hide the wave element, use ESC shadow instead */
.stack-electric-wave {
    display: none;
}

/* Shadow splash on ESC board when assembled */
.esc-layer.shadow-splash .stack-board {
    animation: escShadowSplash 1.2s ease-out forwards;
}

@keyframes escShadowSplash {
    0% {
        filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.5))
                drop-shadow(0 0 8px rgba(255, 140, 50, 0.8));
    }
    100% {
        filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.5))
                drop-shadow(0 0 8px rgba(255, 140, 50, 0));
    }
}

/* Feature Grid for 8S Section */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
}

.feature-item svg {
    width: 20px;
    height: 20px;
    stroke: #10B981;
    flex-shrink: 0;
}

.feature-item span {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Platform Badges */
.platform-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}

.platform-badge {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: #06B6D4;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

/* ============================================
   Section 4: ESC 6-in-1 Hexacopter
   ============================================ */
.esc6-section {
    background: linear-gradient(180deg, var(--color-bg-deep) 0%, #0f0805 50%, var(--color-bg-deep) 100%);
    position: relative;
}

.esc6-section-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.esc6-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
}

.esc6-glow-orange {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #F59E0B 0%, transparent 70%);
    top: 20%;
    right: -100px;
}

.esc6-glow-red {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #EF4444 0%, transparent 70%);
    bottom: 20%;
    left: -100px;
}

.esc6-content {
    position: relative;
    z-index: 10;
}

/* Allow drone to overflow and overlap previous section */
.esc6-section {
    overflow: visible;
}

.esc6-visual {
    overflow: visible;
}

/* ESC6 Features */
.esc6-features {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}

.esc6-feature {
    text-align: center;
}

.esc6-feature-value {
    font-size: 3rem;
    font-weight: 900;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, #F59E0B, #EF4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.esc6-feature-label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 4px;
}

/* Hexacopter Assembly */
.hexacopter-assembly {
    position: relative;
    width: 100%;
    max-width: 900px;
    height: 900px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    overflow: visible;
}

.hexacopter-svg {
    position: absolute;
    width: 1200px;
    height: 1200px;
    max-width: none;
    pointer-events: none;
}

/* Propeller spinning animations - controlled by class */
.hexacopter-assembly.props-spinning .prop-cw .prop-blades {
    animation: propSpinCW 2s linear infinite;
}

.hexacopter-assembly.props-spinning .prop-ccw .prop-blades {
    animation: propSpinCCW 2s linear infinite;
}

@keyframes propSpinCW {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes propSpinCCW {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

/* ESC Board Container */
.esc6-board-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(calc(-50% + 500px), -50%);
    opacity: 0;
    transition: all 1.2s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 10;
}

.esc6-board-container.slide-in {
    transform: translate(-50%, -50%);
    opacity: 1;
}

.esc6-board {
    max-width: 357px;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.5)) drop-shadow(0 0 20px rgba(245, 158, 11, 0.3));
}


/* ============================================
   Responsive Styles for Hero Sections
   ============================================ */
@media (max-width: 1024px) {
    .hero-section-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-section-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .stack-content.reverse {
        direction: ltr;
    }

    .stack-specs {
        justify-content: center;
    }

    .stack-price {
        margin: 0 auto;
    }

    .camera-types {
        max-width: 500px;
        margin: 0 auto;
    }

    .camera-type {
        text-align: left;
    }

    .camera-type-info {
        text-align: left;
    }

    .feature-grid {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 24px;
    }

    .platform-badges {
        justify-content: center;
    }

    .esc6-features {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 80px 16px;
    }

    .floating-image {
        max-width: 70%;
    }

    .hero-section-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .camera-types {
        grid-template-columns: 1fr;
    }

    .stack-specs {
        flex-wrap: wrap;
        gap: 20px;
    }

    .stack-spec .spec-value {
        font-size: 1.5rem;
    }

    .stack-assembly {
        max-width: 400px;
        height: 450px;
    }

    .esc-layer .stack-board {
        max-width: 461px; /* 20% bigger: 384 * 1.2 = 461 */
    }

    .fc-layer .stack-board {
        max-width: 320px;
    }

    .hexacopter-assembly {
        max-width: 600px;
        height: 600px;
    }

    .hexacopter-svg {
        width: 900px;
        height: 900px;
    }

    .esc6-board {
        max-width: 300px;
    }

    .esc6-features {
        flex-wrap: wrap;
        gap: 20px;
    }

    .esc6-feature-value {
        font-size: 2rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stack-specs {
        gap: 16px;
    }

    .stack-price {
        flex-direction: column;
        gap: 8px;
        padding: 16px 24px;
    }

    .stack-price-value {
        font-size: 1.5rem;
    }

    .camera-type {
        padding: 16px;
    }

    .camera-type-icon {
        width: 40px;
        height: 40px;
    }

    .camera-type-icon svg {
        width: 20px;
        height: 20px;
    }
}