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

:root {
    --primary-color: #1a1d2e;
    --secondary-color: #ff8c42;
    --accent-color: #ffd700;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

/* Header & Navigation */
header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-login {
    padding: 8px 20px;
    border-radius: 20px;
    background: var(--secondary-color);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-login:hover {
    background: #ff7526;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 140, 66, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2d3142 100%);
    color: var(--white);
    padding: 150px 0 100px;
    margin-top: 70px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.hero .description {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    line-height: 1.8;
    opacity: 0.9;
}

.hero .description-tech {
    font-size: 1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
    opacity: 0.8;
    font-style: italic;
}

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

/* Buttons */
.btn {
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: #ff7526;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 140, 66, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* Sections */
.section {
    padding: 80px 0;
}

.bg-light {
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

/* Android Badge */
.android-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #3DDC84 0%, #2DA871 100%);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    max-width: fit-content;
    margin: 0 auto 2rem;
    box-shadow: 0 4px 15px rgba(61, 220, 132, 0.3);
    font-weight: 600;
}

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

.android-text {
    font-size: 1rem;
}

.android-badge a {
    color: var(--white);
    text-decoration: underline;
    font-weight: 700;
}

.android-badge a:hover {
    opacity: 0.8;
}

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

.feature-card {
    background: var(--white);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #f5f5f5;
}

.feature-video {
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 1rem;
    background: #000;
}

.feature-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

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

/* KPI Showcase Section */
.kpi-showcase {
    background: linear-gradient(135deg, #1a1d2e 0%, #2d3142 100%);
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.kpi-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 140, 66, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(255, 215, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.kpi-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.kpi-text {
    padding-right: 2rem;
}

.kpi-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--white);
    line-height: 1.2;
}

.kpi-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.kpi-benefits {
    margin-bottom: 2.5rem;
}

.kpi-benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.kpi-benefit-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

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

.kpi-benefit-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    color: var(--accent-color);
}

.kpi-benefit-item p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin: 0;
}

.kpi-cta {
    margin-top: 2rem;
}

.kpi-video-container {
    position: relative;
}

.kpi-video-wrapper {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 3px solid rgba(255, 215, 0, 0.3);
    transition: all 0.3s;
}

.kpi-video-wrapper:hover {
    transform: scale(1.02);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 215, 0, 0.5);
}

.kpi-video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
    background: #000;
}

/* Features List */
.features-list {
    max-width: 900px;
    margin: 3rem auto;
}

.feature-row {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.feature-text h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-text ul {
    list-style-position: inside;
    color: var(--text-light);
}

.feature-text li {
    margin-bottom: 0.5rem;
    padding-left: 0.5rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 3rem auto;
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: inherit;
}

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

.contact-info {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.contact-info p {
    color: var(--text-light);
    line-height: 1.8;
}

.info-item {
    margin-top: 1.5rem;
}

.info-item strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

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

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    opacity: 0.7;
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: #ff7526;
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(255, 140, 66, 0.6);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

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

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

    .btn-login {
        font-size: 0.85rem;
        padding: 6px 15px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.2rem;
    }

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

    .feature-row {
        flex-direction: column;
        text-align: center;
    }

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

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

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

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

    .kpi-text {
        padding-right: 0;
    }

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

    .android-badge {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }

    .android-icon {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .feature-image {
        height: 300px;
    }
}