/* Landing Page Styles */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

/* Navbar Styles */
.navbar-landing {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar-landing.scrolled {
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-landing .nav-link {
    color: #4a5568 !important;
    font-weight: 500;
    margin: 0 1rem;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-landing .nav-link:hover {
    color: #667eea !important;
}

.navbar-landing .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

.navbar-landing .nav-link:hover::after {
    width: 100%;
}

.btn-signin {
    padding: 0.5rem 1.5rem;
    border: 2px solid #667eea;
    color: #667eea;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-signin:hover {
    background: #667eea;
    color: white;
}

.btn-signup {
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    display: inline-block;
}

.btn-signup:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.5);
    color: white;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
    padding: 100px 0 80px 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
            linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.hero-icon {
    font-size: 20rem;
    color: rgba(255,255,255,0.2);
}

.btn-hero {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-hero-primary {
    background: white;
    color: #667eea;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    color: #667eea;
}

.btn-hero-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid white;
    backdrop-filter: blur(10px);
}

.btn-hero-secondary:hover {
    background: white;
    color: #667eea;
}

/* Features Section */
.features-section {
    padding: 6rem 0;
    background: #f7fafc;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: #2d3748;
}

.section-subtitle {
    text-align: center;
    color: #718096;
    font-size: 1.1rem;
    margin-bottom: 4rem;
    opacity: 0.9;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.icon-blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.icon-green {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
}

.icon-orange {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    color: white;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #2d3748;
}

.feature-description {
    color: #718096;
    line-height: 1.6;
}

/* Tutorial Section */
.tutorial-section {
    padding: 6rem 0;
    background: white;
    min-height: 100vh;
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.video-placeholder:hover {
    transform: scale(1.02);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.step-number-green {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
}

.step-number-orange {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
}

.step-title {
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #2d3748;
}

.step-description {
    color: #718096;
}

/* Contact Section */
.contact-section {
    padding: 8rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    margin: 0 auto;
}

.form-control {
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* Footer */
.footer {
    background: #2d3748;
    color: white;
    padding: 2rem 0;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

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

    .btn-hero {
        width: 100%;
    }

    .navbar-landing .nav-link {
        margin: 0.5rem 0;
    }

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