/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #000;
    background: #fff;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-logo h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #000;
}

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

.nav-menu a {
    text-decoration: none;
    color: #000;
    font-weight: 400;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #666;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.1;
}

.surgical-scene {
    position: absolute;
    right: -200px;
    bottom: -100px;
    width: 600px;
    height: 400px;
}

.da-vinci-robot {
    position: absolute;
    right: 100px;
    bottom: 50px;
    width: 200px;
    height: 300px;
}

.robot-arms {
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 200px;
}

.arm {
    position: absolute;
    background: #333;
    border-radius: 20px;
    transform-origin: center;
    animation: robotArmMove 4s ease-in-out infinite;
}

.arm-1 {
    width: 8px;
    height: 80px;
    top: 20px;
    right: 40px;
    animation-delay: 0s;
}

.arm-2 {
    width: 8px;
    height: 60px;
    top: 40px;
    right: 60px;
    animation-delay: 0.5s;
}

.arm-3 {
    width: 8px;
    height: 70px;
    top: 30px;
    right: 80px;
    animation-delay: 1s;
}

.arm-4 {
    width: 8px;
    height: 50px;
    top: 50px;
    right: 20px;
    animation-delay: 1.5s;
}

.robot-base {
    position: absolute;
    bottom: 0;
    right: 50px;
    width: 100px;
    height: 60px;
    background: #555;
    border-radius: 20px 20px 0 0;
}

.operating-table {
    position: absolute;
    bottom: 0;
    right: 50px;
    width: 300px;
    height: 80px;
    background: #f0f0f0;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.patient-outline {
    position: absolute;
    top: 20px;
    left: 50px;
    width: 200px;
    height: 40px;
    background: #e0e0e0;
    border-radius: 20px;
}

@keyframes robotArmMove {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(5deg); }
    75% { transform: rotate(-5deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 500px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #000;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2.5rem;
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: #000;
    color: #fff;
}

.btn-primary:hover {
    background: #333;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #000;
    border: 2px solid #000;
}

.btn-secondary:hover {
    background: #000;
    color: #fff;
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Phone Mockup with Surgical Robot */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #000;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.surgical-robot-display {
    width: 100%;
    height: 100%;
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.robot-visualization {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    z-index: 1;
}

.robot-body {
    position: relative;
    width: 100%;
    height: 100%;
}

.robot-head {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 40px;
    background: #333;
    border-radius: 30px 30px 0 0;
}

.camera-lens {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: #000;
    border-radius: 50%;
    border: 2px solid #666;
}

.robot-torso {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 60px;
    background: #444;
    border-radius: 10px;
}

.control-arm {
    position: absolute;
    top: 20px;
    width: 40px;
    height: 60px;
}

.left-arm {
    left: -30px;
    transform: rotate(-30deg);
}

.right-arm {
    right: -30px;
    transform: rotate(30deg);
}

.arm-segment {
    width: 100%;
    height: 100%;
    background: #555;
    border-radius: 20px;
    position: relative;
}

.surgical-tool {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 20px;
    background: #000;
    border-radius: 2px;
}

.robot-base {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 20px;
    background: #666;
    border-radius: 10px;
}

.surgical-field {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 40px;
    background: #f0f0f0;
    border-radius: 20px;
    border: 2px solid #ddd;
}

.tissue-visualization {
    position: absolute;
    top: 10px;
    left: 20px;
    width: 110px;
    height: 20px;
    background: #e8d5c4;
    border-radius: 10px;
    opacity: 0.7;
}

.precision-indicators {
    position: absolute;
    top: 5px;
    right: 10px;
    display: flex;
    gap: 5px;
}

.precision-dot {
    width: 6px;
    height: 6px;
    background: #00ff00;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.precision-dot:nth-child(2) {
    animation-delay: 0.5s;
}

.precision-dot:nth-child(3) {
    animation-delay: 1s;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

.control-overlay {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    z-index: 2;
}

.control-panel {
    width: 100%;
    height: 120px;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 15px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.control-joystick {
    width: 60px;
    height: 60px;
    background: #fff;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.control-buttons {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.control-btn {
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #000;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.feature-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border-radius: 20px;
    background: #f8f8f8;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: #000;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #000;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: #f8f8f8;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: #fff;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border-color: #000;
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #000;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #000;
}

.price {
    margin-bottom: 2rem;
}

.amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: #000;
}

.period {
    font-size: 1rem;
    color: #666;
    margin-left: 0.5rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #000;
    font-weight: bold;
}

/* Signup Section */
.signup {
    padding: 100px 0;
    background: #fff;
}

.signup-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.signup-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #000;
}

.signup-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.signup-benefits {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benefit {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.benefit-icon {
    width: 24px;
    height: 24px;
    background: #000;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
}

.signup-form {
    background: #f8f8f8;
    padding: 2.5rem;
    border-radius: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #000;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #000;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.checkbox-group label {
    margin-bottom: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.checkbox-group a {
    color: #000;
    text-decoration: underline;
}

.signup-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
}

.signup-footer a {
    color: #000;
    text-decoration: underline;
}

/* Safety Section */
.safety {
    padding: 100px 0;
    background: #f8f8f8;
}

.safety-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.safety h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #000;
}

.safety p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.safety-features li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.safety-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #000;
    font-weight: bold;
}

.safety-features li:last-child {
    margin-bottom: 0;
}

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

.safety-shield {
    width: 120px;
    height: 140px;
    color: #000;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: #fff;
    text-align: center;
}

.download h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #000;
}

.download p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
}

.download-buttons {
    margin-bottom: 2rem;
}

.download-btn img {
    height: 60px;
    transition: transform 0.3s ease;
}

.download-btn:hover img {
    transform: scale(1.05);
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

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

.info-item strong {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #000;
}

.info-item p {
    color: #666;
    margin: 0;
}

/* Footer */
.footer {
    background: #000;
    color: #fff;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    font-weight: 600;
}

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

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

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

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

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

    .download-info {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        display: none;
    }

    .section-title {
        font-size: 2rem;
    }

    .signup-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .nav-logo h2 {
        font-size: 1.2rem;
    }

    .nav-menu {
        display: none;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

.hero-content,
.feature-card,
.pricing-card {
    animation: fadeInUp 0.8s ease-out;
}

.btn:focus,
.form-group input:focus,
.form-group select:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Enhanced phone mockup effects */
.phone-mockup::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #000, #333, #000);
    border-radius: 42px;
    z-index: -1;
    opacity: 0.3;
}

.feature-card,
.pricing-card {
    animation: fadeInUp 0.8s ease-out;
}

.safety-shield:hover {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 2dppx) {
    .phone-mockup {
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    }
}