:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --primary-color: #3b82f6;
    --secondary-color: #0ea5e9;
    --accent-color: #38bdf8;
    --secondary-bg: #f4f4f5;
    --card-bg: #ffffff;
    --border-color: rgba(229, 231, 235, 0.7);
    --heading-color: #0f172a;
}

.dark-mode {
    --bg-color: linear-gradient(135deg, 
        #0f172a 0%,
        #1e293b 50%,
        #0f3d68 100%
    );
    --text-color: #f9fafb;
    --secondary-bg: rgba(30, 41, 59, 0.8);
    --card-bg: rgba(30, 41, 59, 0.6);
    --border-color: rgba(75, 85, 99, 0.5);
    --heading-color: #ffffff;

}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    transition: color 0.3s;
    min-height: 100vh;
}

.container {
    max-width: 1250px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
}

.container h2,h1 {
    color: var(--heading-color);
}

nav {
    background-color: var(--secondary-bg);
    padding: 1rem 0;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    width: 14rem;
    font-weight: 700;
}


.dark-mode-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color 0.2s ease;
}

.hero {
    padding: 7rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #666;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.dark-mode .subtitle {
    color: #aaa;
}

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

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    text-align: center;
}

.cta-button.primary {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 6px rgba(59, 130, 246, 0.3);
}

.cta-button.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    border: 1px solid var(--primary-color);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 8px rgba(59, 130, 246, 0.4);
}

.features, .workflow {
    padding: 6rem 0;
    background-color: var(--primary-bg);
}

.features h2, .workflow h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-color);
}

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

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.step-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1.5rem;
    text-align: center;
    position: relative;
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    box-shadow: 0 3px 6px rgba(59, 130, 246, 0.3);
}

.benefits {
    background-color: var(--secondary-bg);
    padding: 60px 20px;
}

.container {
    max-width: 1100px;
    margin: auto;
}

.content-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.text-content {
    flex: 1;
    min-width: 300px;
}

.text-content h2 {
    font-size: 28px;
    color: var(--heading-color);
    margin-bottom: 20px;
}

.text-content h2 span {
    color: var(--accent-color);
}

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

.benefits-list li {
    font-size: 18px;
    color: var(--accent-color);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.benefits-list li i {
    color: var(--primary-color);
    margin-right: 1rem;
}

.cta-button {
    display: inline-block;
    padding: 12px 20px;
    margin-top: 20px;
    font-size: 18px;
    text-decoration: none;
    color: var(--accent-color);
    border-radius: 5px;
    transition: background 0.3s ease;
}

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

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

.image-content {
    text-align: center;
    flex: 1;
}

.image-content i {
    font-size: 80px;
    color: var(--primary-color);
}

.image-content {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 15rem;
    color: var(--primary-color);
    opacity: 0.1;
}

/* video section */
.video-section {
    padding: 4rem 0;
    text-align: center;
    background-color: var(--secondary-bg);
}

.video-section h2, h1 {
    margin-bottom: 3rem;
    color: var(--text-color);
}

.video-wrapper {
    max-width: 800px;
    margin: 0 auto 2rem;
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 0.5rem;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-description {
    font-size: 1.1rem;
    color: var(--text-color);
    max-width: 600px;
    margin: 2rem auto 0;
    opacity: 0.8;
}

/* Dark mode support */
.dark-mode .video-section {
    background: var(--secondary-bg);
}

.dark-mode .video-wrapper {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

h2 {
    color: #2c3e50;
    font-weight: 600;
}

.lead {
    color: #6c757d;
}

.contact {
    padding: 6rem 0;
    text-align: center;
    background-color: var(--primary-bg);
}

.contact .cta-button {
    margin-top: 1rem;
}

footer {
    background-color: var(--secondary-bg);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .logo {
        width: 8rem;
    }

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

    .content-wrapper {
        grid-template-columns: 1fr;
    }

    .image-content {
        display: none;
    }

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

    .container {
        padding: 0 1rem;
    }
}

@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.dark-mode body {
    background: var(--bg-color);
    background-size: 300% 300%;
    animation: gradientAnimation 20s ease infinite;
}

.dark-mode body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, 
        rgba(59, 130, 246, 0.1) 0%,
        rgba(15, 23, 42, 0.2) 100%
    );
    pointer-events: none;
    z-index: 1;
}