:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --success-color: #4bb543;
    --error-color: #ff3333;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f7ff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 20px 0;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuKSIvPjwvc3ZnPg==');
    opacity: 0.3;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    position: relative;
    z-index: 1;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

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

.nav-links li {
    margin-left: 30px;
}

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

.nav-links a:hover {
    opacity: 0.8;
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.hero {
    text-align: center;
    padding: 80px 0;
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

button {
    background-color: white;
    color: var(--primary-color);
    border: none;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

#start-now-btn {
    background-color: var(--accent-color);
    color: white;
    font-size: 1.1rem;
    padding: 15px 30px;
}

/* Main Content Styles */
.tool-section {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin: -50px auto 40px;
    position: relative;
    z-index: 2;
}

.upload-area {
    border: 2px dashed var(--gray-color);
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 30px;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(67, 97, 238, 0.05);
}

.upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.upload-area h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.upload-area p {
    margin: 10px 0;
    color: var(--gray-color);
}

#browse-btn {
    background-color: var(--primary-color);
    color: white;
    margin-top: 10px;
}

.file-info {
    margin-top: 20px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    display: none;
}

.watermark-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.controls-left, .controls-right {
    flex: 1;
    min-width: 300px;
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.control-group input[type="text"],
.control-group select {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.control-group input[type="text"]:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
}

.control-group input[type="range"] {
    width: calc(100% - 50px);
    margin-right: 10px;
    vertical-align: middle;
}

.control-group input[type="color"] {
    width: 50px;
    height: 40px;
    padding: 2px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.preview-section h3 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.preview-container {
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    padding: 20px;
    background-color: #f8f9fa;
    text-align: center;
    margin-bottom: 20px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#preview-canvas {
    max-width: 100%;
    max-height: 500px;
    display: none;
}

.action-buttons {
    display: flex;
    justify-content: space-between;
}

#reset-btn {
    background-color: var(--gray-color);
    color: white;
}

#download-btn {
    background-color: var(--success-color);
    color: white;
}

#download-btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Features Section */
.features-section {
    text-align: center;
    padding: 60px 0;
}

.features-section h2 {
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--dark-color);
}

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

.feature-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* Steps Section */
.steps-section {
    text-align: center;
    padding: 60px 0;
    background-color: #f0f4ff;
}

.steps-section h2 {
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--dark-color);
}

.steps-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

/* FAQ Section */
.faq-section {
    padding: 60px 0;
}

.faq-section h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--dark-color);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.faq-question {
    background-color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question h4 {
    font-weight: 500;
    color: var(--dark-color);
}

.faq-question i {
    transition: var(--transition);
}

.faq-answer {
    background-color: #f8f9fa;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    padding: 0 20px 20px;
}

.faq-item.active .faq-question {
    background-color: var(--primary-color);
    color: white;
}

.faq-item.active .faq-question h4 {
    color: white;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: white;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* Footer Styles */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 0;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    flex: 2;
    min-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 20px;
    color: white;
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links {
    flex: 1;
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

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

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

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-social {
    flex: 1;
}

.footer-social h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: white;
    font-size: 1.5rem;
    opacity: 0.8;
    transition: var(--transition);
}

.social-icons a:hover {
    opacity: 1;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--secondary-color);
        flex-direction: column;
        padding: 20px;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        box-shadow: var(--box-shadow);
        z-index: 100;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        margin: 10px 0;
    }

    .mobile-menu {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .watermark-controls {
        flex-direction: column;
    }

    .controls-left, .controls-right {
        min-width: 100%;
    }

    .action-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .action-buttons button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .tool-section {
        padding: 20px;
    }

    .upload-area {
        padding: 30px 20px;
    }

    .feature-card, .step {
        min-width: 100%;
    }
}