@import url('theme.css');

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

html, body {
    width: 100%;
    scroll-behavior: smooth;
}

html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary-color);
    color: var(--text-primary-color);
}

main {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--padding-2xl);
}

main section {
    width: 100%;
    display: flex;
    gap: var(--gutter-lg);
}

/* Button Styles */
.btn {
    padding: var(--padding-sm) var(--padding-lg);
    border: none;
    outline: none;
    border-radius: var(--border-radius-md);
    background-color: var(--bg-active-color);
    cursor: pointer;
    color: var(--text-active-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--gutter-sm);
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-success {
    background-color: var(--bg-success-color);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary-color);
}

.btn-outline:hover {
    background: var(--bg-secondary-color);
    border-color: var(--text-primary-color);
}

.btn-small {
    padding: var(--padding-sm) var(--padding-md);
    font-size: var(--font-size-sm);
}

.btn-icon {
    background: transparent;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--padding-sm);
    border-radius: var(--border-radius-md);
    color: var(--text-primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--bg-secondary-color);
}

#reset-btn {
    background-color: var(--bg-danger-color);
    color: var(--text-primary-color);
}

#download-btn {
    background-color: var(--bg-success-color);
    color: var(--text-primary-color);
}

/* Header Styles */
.app-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--padding-2xl);
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gutter-md);
    font-size: 2.5rem;
    margin-bottom: var(--margin-md);
}

.logo i {
    font-size: 3rem;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.version {
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    margin-left: var(--margin-sm);
    font-weight: normal;
}

.tagline {
    font-size: 1.2rem;
    opacity: 0.95;
    font-weight: 300;
}

/* Left Section */
main section .left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--gutter-lg);
    width: 70%;
}

main section .top {
    display: flex;
    align-items: center;
    gap: var(--gutter-md);
    width: 100%;
    flex-wrap: wrap;
}

main section .bottom {
    background-color: var(--bg-secondary-color);
    width: 100%;
    padding: var(--padding-2xl);
    aspect-ratio: 5/3;
    border-radius: var(--border-radius-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px dashed var(--border-color);
    transition: border-color 0.3s ease;
}

main section .bottom:hover {
    border-color: var(--primary-color);
}

main section .bottom .placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.7;
    gap: var(--gutter-md);
    text-align: center;
}

main section .bottom .placeholder i {
    font-size: 8rem;
    color: var(--text-tertiary-color);
}

main section .bottom .placeholder p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary-color);
}

.placeholder-hint {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary-color);
    margin-top: var(--margin-sm);
}

/* Image Info Bar */
.image-info {
    margin-top: var(--margin-lg);
    padding: var(--padding-md);
    background: var(--bg-secondary-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    gap: var(--gutter-lg);
    flex-wrap: wrap;
    width: 100%;
    border: 1px solid var(--border-color);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--gutter-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary-color);
}

.info-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* Right Section */
main section .right {
    width: 30%;
    background-color: var(--bg-secondary-color);
    padding: var(--padding-lg);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    gap: var(--gutter-lg);
    height: fit-content;
    position: sticky;
    top: var(--margin-lg);
}

.right-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--margin-sm);
}

.right-header h2 {
    display: flex;
    align-items: center;
    gap: var(--gutter-sm);
    font-size: 1.3rem;
    color: var(--text-primary-color);
}

.right-header h2 i {
    color: var(--primary-color);
}

.presets-count {
    font-size: var(--font-size-sm);
    color: var(--text-secondary-color);
    background: var(--bg-primary-color);
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
}

/* Filters Section */
main section .right .filters {
    display: flex;
    flex-direction: column;
    gap: var(--gutter-md);
    max-height: 400px;
    overflow-y: auto;
    padding-right: var(--padding-sm);
}

.filters::-webkit-scrollbar {
    width: 6px;
}

.filters::-webkit-scrollbar-track {
    background: var(--bg-primary-color);
    border-radius: 10px;
}

.filters::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

main section .right .filter {
    width: 100%;
}

main section .right .filter p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary-color);
    margin-bottom: var(--margin-sm);
    text-transform: capitalize;
}

main section .right .filter input {
    width: 100%;
    outline: none;
    appearance: none;
    background: transparent;
}

main section .right .filter input::-webkit-slider-runnable-track {
    height: 4px;
    background: var(--bg-primary-color);
    border-radius: 2px;
}

main section .right .filter input::-webkit-slider-thumb {
    cursor: pointer;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    margin-top: -7px;
    box-shadow: 0 2px 6px rgba(102, 126, 234, 0.4);
    transition: transform 0.2s ease;
}

main section .right .filter input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* Presets Section */
.presets {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gutter-sm);
    max-height: 200px;
    overflow-y: auto;
    padding: var(--padding-sm) 0;
}

.presets .btn {
    flex: 1 1 calc(50% - var(--gutter-sm));
    min-width: 80px;
    background: var(--bg-primary-color);
    color: var(--text-primary-color);
    border: 1px solid var(--border-color);
    text-transform: capitalize;
}

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

/* Quick Actions */
.quick-actions {
    margin-top: var(--margin-lg);
    padding-top: var(--padding-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: var(--gutter-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.quick-actions .btn-outline {
    flex: 1;
    min-width: 40px;
    padding: var(--padding-sm);
}

/* Canvas */
canvas {
    max-width: 100%;
    max-height: 70vh;
    display: none;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Features Section */
.features {
    margin-top: var(--margin-2xl);
    padding: var(--padding-2xl);
    background: var(--bg-secondary-color);
    border-radius: var(--border-radius-xl);
}

.section-title {
    text-align: center;
    margin-bottom: var(--margin-2xl);
    color: var(--text-primary-color);
    font-size: var(--font-size-2xl);
}

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

.feature-card {
    text-align: center;
    padding: var(--padding-xl);
    background: var(--bg-primary-color);
    border-radius: var(--border-radius-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--margin-md);
    display: inline-block;
}

.feature-card h3 {
    margin-bottom: var(--margin-sm);
    font-size: 1.2rem;
    color: var(--text-primary-color);
}

.feature-card p {
    color: var(--text-secondary-color);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* Footer Styles */
.app-footer {
    background: #0a0a0a;
    color: #fff;
    margin-top: var(--margin-2xl);
    padding: var(--padding-2xl) 0 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--padding-2xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--gutter-xl);
}

.footer-section h4 {
    margin-bottom: var(--margin-lg);
    color: #fff;
    font-size: 1.1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--gutter-sm);
    font-size: 1.5rem;
    margin-bottom: var(--margin-md);
}

.footer-description {
    color: #999;
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

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

.footer-links li {
    margin-bottom: var(--margin-sm);
}

.footer-links a,
.footer-links li {
    color: #999;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--gutter-sm);
    transition: color 0.3s ease;
    font-size: var(--font-size-sm);
}

.footer-links a:hover {
    color: #fff;
}

.footer-links i {
    font-size: 1rem;
    color: var(--primary-color);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--gutter-md);
    margin-bottom: var(--margin-lg);
}

.social-link {
    color: #999;
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: #fff;
    transform: translateY(-3px);
}

/* Newsletter */
.newsletter-hint {
    color: #999;
    font-size: var(--font-size-sm);
    margin-bottom: var(--margin-sm);
}

.newsletter-form {
    display: flex;
    gap: var(--gutter-sm);
}

.newsletter-input {
    flex: 1;
    padding: var(--padding-sm);
    border: 1px solid #333;
    background: #1a1a1a;
    color: #fff;
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Footer Bottom */
.footer-bottom {
    margin-top: var(--margin-2xl);
    padding: var(--padding-lg) var(--padding-2xl);
    border-top: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--gutter-md);
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.copyright {
    color: #999;
    font-size: var(--font-size-sm);
}

.footer-bottom-links {
    display: flex;
    gap: var(--gutter-lg);
}

.footer-bottom-links a {
    color: #999;
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: #fff;
}

.made-with {
    color: #999;
    font-size: var(--font-size-sm);
}

.heart-icon {
    color: #ef4444;
    animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Scroll to Top Button */
.scroll-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    z-index: 1000;
}

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

.scroll-top-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.6);
}

/* Responsive Design */
@media (max-width: 1024px) {
    main section {
        flex-direction: column;
    }
    
    main section .left,
    main section .right {
        width: 100%;
    }
    
    main section .right {
        position: static;
    }
}

@media (max-width: 768px) {
    main {
        padding: var(--padding-md);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
    
    .quick-actions {
        justify-content: center;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .logo i {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .image-info {
        flex-direction: column;
        gap: var(--gutter-sm);
    }
    
    .presets .btn {
        flex: 1 1 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}