/* Critical CSS for initial render */
:root {
    --primary: #d4af37;
    --secondary: #f4d03f;
    --dark: #1a1a1a;
    --light: #ffffff;
    --gray: #333333;
    --light-gray: #cccccc;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--light);
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
    background: rgba(212, 175, 55, 0.1);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover::after {
    width: 80%;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--light);
    margin: 3px 0;
    transition: 0.3s;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Hero Section */
.hero-small {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(26, 26, 26, 0.9) 100%);
    padding: 4rem 0 2rem;
    text-align: center;
}

.hero-small h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--primary);
}

.hero-small p {
    font-size: 1.2rem;
    color: var(--light-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Tool Section */
.tool-section {
    padding: 3rem 0;
}

.tool-container {
    background: rgba(26, 26, 26, 0.5);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.tool-input {
    margin-bottom: 2rem;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--primary);
    border-radius: 8px;
    background: rgba(26, 26, 26, 0.8);
    color: var(--light);
    font-size: 1rem;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}

.btn-primary {
    background: var(--primary);
    color: var(--dark);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(26, 26, 26, 0.8);
    color: var(--light);
    border: 1px solid var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.tool-output {
    background: rgba(26, 26, 26, 0.3);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.output-content {
    background: rgba(26, 26, 26, 0.8);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    min-height: 100px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.output-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.tool-info {
    background: rgba(26, 26, 26, 0.3);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.tool-info h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.tool-info ul {
    list-style: none;
}

.tool-info li {
    padding: 0.5rem 0;
    color: var(--light-gray);
    position: relative;
    padding-left: 1.5rem;
}

.tool-info li::before {
    content: '✅';
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--primary);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(26, 26, 26, 0.5);
    margin-bottom: 2rem;
}

.upload-area:hover {
    border-color: var(--secondary);
    background: rgba(26, 26, 26, 0.8);
}

.upload-area.drag-over {
    border-color: var(--secondary);
    background: rgba(212, 175, 55, 0.1);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Tool Controls */
.tool-controls {
    margin: 2rem 0;
}

.control-group {
    margin-bottom: 1.5rem;
}

.control-group h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.control-btn {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--primary);
    color: var(--light);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

.control-btn.primary:hover {
    background: var(--secondary);
}

/* Tool Canvas */
.tool-canvas {
    margin: 2rem 0;
    text-align: center;
}

#imageCanvas {
    border: 1px solid var(--primary);
    border-radius: 5px;
    max-width: 100%;
}

/* Footer */
.footer {
    background: rgba(26, 26, 26, 0.9);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h3,
.footer-section h4 {
    color: var(--primary);
    margin-bottom: 1rem;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    color: var(--light-gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(26, 26, 26, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-toggle {
        display: flex;
    }

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

    .hero-small p {
        font-size: 1rem;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .tool-container {
        padding: 1rem;
    }

    .output-actions {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }

    .hero-small {
        padding: 2rem 0 1rem;
    }

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

    .upload-area {
        padding: 1rem;
    }

    .control-buttons {
        justify-content: center;
    }
}