/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header styles */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #3498db;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary {
    background-color: #2c3e50;
    color: white;
}

.btn-secondary:hover {
    background-color: #1a252f;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* Hero section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    color: white;
    text-align: center;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-content {
    max-width: 800px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-image {
    max-width: 600px;
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Upload section */
.upload-section {
    padding: 80px 0;
    background-color: #fff;
}

.upload-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.section-description {
    text-align: center;
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 700px;
    margin: 0 auto 50px;
}

.drop-area {
    border: 3px dashed #3498db;
    border-radius: 10px;
    padding: 60px 20px;
    text-align: center;
    background-color: #f8f9fa;
    transition: all 0.3s;
    cursor: pointer;
}

.drop-area:hover, .drop-area.dragover {
    background-color: #e3f2fd;
    border-color: #2980b9;
}

.drop-area-content i {
    color: #3498db;
    margin-bottom: 20px;
}

.drop-area-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.drop-area-content p {
    margin-bottom: 20px;
    color: #7f8c8d;
}

.keywords-section {
    margin-top: 50px;
}

.keywords-section h3 {
    text-align: center;
    margin-bottom: 15px;
    color: #2c3e50;
}

.keywords-input {
    display: flex;
    max-width: 600px;
    margin: 0 auto 30px;
    gap: 10px;
}

.keywords-input input {
    flex: 1;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.keywords-input input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.keywords-display {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.keyword-chip {
    background-color: #3498db;
    color: white;
    padding: 8px 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.keyword-chip .remove-keyword {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1rem;
}

.images-preview {
    margin-top: 50px;
}

.images-preview h3 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.images-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.image-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.image-card:hover {
    transform: translateY(-5px);
}

.image-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.image-info {
    padding: 20px;
}

.image-info .original-name {
    font-size: 0.9rem;
    color: #7f8c8d;
    margin-bottom: 10px;
    word-break: break-all;
}

.image-info .new-name {
    font-weight: 600;
    color: #2c3e50;
    word-break: break-all;
}

.image-info input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    margin-top: 10px;
}

.image-info input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.actions {
    text-align: center;
}

/* Features section */
.features {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.feature-card i {
    color: #3498db;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-card p {
    color: #7f8c8d;
}

/* How it works section */
.how-it-works {
    padding: 80px 0;
    background-color: #fff;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.steps {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    text-align: center;
    padding: 0 20px;
    position: relative;
}

.step:not(:last-child):after {
    content: "";
    position: absolute;
    top: 40px;
    right: 0;
    width: 50%;
    height: 2px;
    background-color: #3498db;
}

.step-number {
    width: 80px;
    height: 80px;
    background-color: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.step p {
    color: #7f8c8d;
}

/* Pricing section */
.pricing {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.pricing h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: #fff;
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid #3498db;
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background-color: #3498db;
    color: white;
    padding: 5px 30px;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #2c3e50;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 30px;
}

.price span {
    font-size: 1rem;
    color: #7f8c8d;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-card ul li {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
}

.pricing-card ul li:before {
    content: "\f00c";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    color: #3498db;
    margin-right: 10px;
}

.pricing-card .btn {
    width: 100%;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-logo p {
    opacity: 0.7;
}

.footer-links {
    display: flex;
    gap: 50px;
}

.footer-column h4 {
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: #3498db;
}

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

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bbb;
}

/* Responsive design */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        margin-bottom: 50px;
    }
    
    .steps {
        flex-direction: column;
        gap: 50px;
    }
    
    .step:not(:last-child):after {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 5px 10px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .keywords-input {
        flex-direction: column;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
}

@media (max-width: 576px) {
    .container {
        width: 95%;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .upload-section, .features, .how-it-works, .pricing {
        padding: 60px 0;
    }
    
    .section-description {
        font-size: 1rem;
    }
    
    .drop-area {
        padding: 40px 15px;
    }
    
    .images-container {
        grid-template-columns: 1fr;
    }
}