/* Shared theme variables (light default, dark via [data-theme="dark"]) */
:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --secondary: #06b6d4;
    --accent: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;

    --bg-primary: #f1f5f9;
    --bg-secondary: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border: #cbd5e1;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --glass: rgba(255, 255, 255, 0.95);
    --glass-dark: rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #2d3748;
    --card-bg: rgba(15, 23, 42, 0.85);
    --input-bg: rgba(15, 23, 42, 0.7);
    --glass: rgba(255, 255, 255, 0.1);
    --glass-dark: rgba(0, 0, 0, 0.2);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
}

/* Header */
header {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 20px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 20px;
    z-index: 1000;
    gap: 15px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    width: 40px; height: 40px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
}
.logo-text {
    font-family: 'Orbitron', sans-serif; font-weight: 700; font-size: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

nav { display: flex; align-items: center; }
nav ul { display: flex; list-style: none; gap: 20px; margin: 0; padding: 0; }
nav a {
    color: var(--text-primary); text-decoration: none; font-weight: 500; position: relative; font-size: 0.95rem;
    transition: var(--transition);
}
nav a:hover { color: var(--secondary); }
nav a::after {
    content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: var(--secondary);
    transition: var(--transition);
}
nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 15px; position: relative; margin-left: auto; }
.theme-toggle {
    background: var(--bg-secondary); border: 1px solid var(--border); color: var(--text-primary);
    padding: 10px 16px; border-radius: 8px; cursor: pointer; display: flex; align-items: center; gap: 8px;
    transition: all 0.3s ease; font-size: 0.95rem; font-weight: 500; position: relative; overflow: hidden;
}
.theme-toggle:hover { background: var(--glass); transform: translateY(-1px); }
.theme-toggle i { transition: transform 0.3s ease, opacity 0.3s ease; }

.mobile-menu-btn {
    display: none; background: var(--bg-secondary); border: 1px solid var(--border); color: var(--text-primary);
    font-size: 18px; width: 40px; height: 40px; border-radius: 8px; cursor: pointer; align-items: center;
    justify-content: center; transition: all 0.2s ease;
}
.mobile-menu-btn:hover { background: var(--glass); transform: translateY(-1px); }

/* Footer */
footer {
    background: var(--glass); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: 20px;
    padding: 50px 0 30px; box-shadow: var(--shadow);
}
.footer-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; padding: 0 40px;
}
.footer-column ul { list-style: none; padding: 0; margin: 0; }
.footer-column ul li { margin-bottom: 12px; }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid var(--border); color: var(--text-secondary); font-size: 0.9rem; }

/* Blog: list */
.blog-hero { text-align: center; padding: 40px 15px; margin-bottom: 20px; }
.blog-hero h1 {
    font-family: 'Orbitron', sans-serif; font-size: clamp(2rem, 6vw, 3rem);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.blog-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
    box-shadow: var(--shadow); transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(0,0,0,0.15); }
.blog-cover { width: 100%; height: 160px; object-fit: cover; display: block; }
.blog-content { padding: 18px; }
.blog-meta { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 8px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.blog-title { font-size: 1.1rem; margin: 6px 0 10px; }
.blog-excerpt { color: var(--text-secondary); font-size: 0.95rem; }
.blog-readmore { margin-top: 12px; display: inline-flex; align-items: center; gap: 8px; color: var(--secondary); text-decoration: none; font-weight: 600; }
.blog-readmore:hover { text-decoration: underline; }

/* Blog: post */
.post-header { max-width: 900px; margin: 0 auto 20px; padding: 0 15px; }
.breadcrumb { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 8px; }
.post-title { font-family: 'Orbitron', sans-serif; font-size: clamp(1.8rem, 4vw, 2.4rem); margin: 10px 0; }
.post-meta { color: var(--text-secondary); font-size: 0.9rem; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.post-cover { width: 100%; max-width: 900px; height: auto; border-radius: 16px; display: block; margin: 16px auto; box-shadow: var(--shadow); }
.post-content { max-width: 900px; margin: 0 auto; padding: 0 15px 40px; }
.post-content h2 { margin: 24px 0 12px; }
.post-content p { margin: 12px 0; }
.post-content img { width: 100%; border-radius: 12px; margin: 16px 0; }
.post-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 24px; }
.post-nav a { flex: 1; background: var(--glass); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; color: var(--text-primary); text-decoration: none; text-align: center; }
.post-nav a:hover { background: var(--bg-secondary); }

/* Responsive */
@media (max-width: 1024px) {
    header { flex-wrap: nowrap; }
}
@media (max-width: 768px) {
    nav { position: fixed; top: 80px; left: 0; right: 0; background: var(--card-bg); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); padding: 20px; box-shadow: var(--shadow); z-index: 100; transform: translateY(-150%); transition: transform 0.3s ease-in-out; opacity: 0; pointer-events: none; border-radius: 0 0 12px 12px; }
    nav.active { transform: translateY(0); opacity: 1; pointer-events: auto; }
    nav ul { flex-direction: column; gap: 15px; align-items: flex-start; }
    nav a { display: block; padding: 8px 0; width: 100%; border-radius: 8px; }
    nav a:hover { background: var(--glass); color: var(--secondary); }
    .mobile-menu-btn { display: block; }
}


        :root {
            /* Light Theme (Default) */
            --primary: #4f46e5;
            --primary-hover: #4338ca;
            --secondary: #06b6d4;
            --accent: #10b981;
            --error: #ef4444;
            --warning: #f59e0b;
            --success: #10b981;

            /* Light Theme Colors */
            --bg-primary: #f1f5f9;
            --bg-secondary: #e2e8f0;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --border: #cbd5e1;
            --card-bg: #ffffff;
            --input-bg: #ffffff;
            --glass: rgba(255, 255, 255, 0.95);
            --glass-dark: rgba(0, 0, 0, 0.05);
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --transition: all 0.3s ease;
        }

        [data-theme="dark"] {
            /* Dark Theme Colors */
            --bg-primary: #0f172a;
            --bg-secondary: #1e293b;
            --text-primary: #f8fafc;
            --text-secondary: #94a3b8;
            --border: #2d3748;
            --card-bg: rgba(15, 23, 42, 0.85);
            --input-bg: rgba(15, 23, 42, 0.7);
            --glass: rgba(255, 255, 255, 0.1);
            --glass-dark: rgba(0, 0, 0, 0.2);
            --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.36);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            padding: 20px;
            overflow-x: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* Header Styles */
        .mobile-menu-btn {
            display: none;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            color: var(--text-primary);
            font-size: 18px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }

        .mobile-menu-btn:hover {
            background: var(--glass);
            transform: translateY(-1px);
        }

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

        .mobile-menu-btn:focus {
            outline: none;
        }

        header {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 12px 20px;
            margin-bottom: 25px;
            box-shadow: var(--shadow);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            position: sticky;
            top: 20px;
            z-index: 1000;
            transition: all 0.3s ease;
            gap: 15px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-icon {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-text {
            font-family: 'Orbitron', sans-serif;
            font-weight: 700;
            font-size: 24px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: all 0.3s ease;
        }

        nav {
            display: flex;
            align-items: center;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 20px;
            margin: 0;
            padding: 0;
        }

        nav a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }

        nav a:hover {
            color: var(--secondary);
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }

        nav a:hover::after {
            width: 100%;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
            position: relative;
            margin-left: auto;
        }

        .theme-toggle {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            color: var(--text-primary);
            padding: 10px 16px;
            border-radius: 8px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
            font-weight: 500;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            position: relative;
            overflow: hidden;
        }

        .theme-toggle:hover {
            background: var(--glass);
            transform: translateY(-1px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .theme-toggle:active {
            transform: translateY(0);
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
        }

        .theme-toggle i {
            transition: transform 0.3s ease, opacity 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .theme-toggle .fa-moon {
            position: absolute;
            opacity: 0;
            transform: rotate(-90deg);
        }

        .theme-toggle .fa-sun {
            opacity: 1;
            transform: rotate(0);
        }

        [data-theme="dark"] .theme-toggle .fa-moon {
            opacity: 1;
            transform: rotate(0);
        }

        [data-theme="dark"] .theme-toggle .fa-sun {
            opacity: 0;
            transform: rotate(90deg);
        }

        .theme-toggle span {
            transition: opacity 0.3s ease;
            position: relative;
            z-index: 1;
        }

        .auth-buttons {
            display: flex;
            gap: 15px;
        }

        .btn {
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            font-size: 1rem;
            white-space: nowrap;
        }

        @media (max-width: 768px) {
            .btn {
                padding: 10px 16px;
                font-size: 0.95rem;
            }
        }

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

        .btn-login:hover {
            background: var(--glass);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            transform: translateY(-2px);
        }

        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--light);
            font-size: 24px;
            cursor: pointer;
        }

        /* Hero Section */
        .hero {
            text-align: center;
            padding: 60px 20px;
            margin-bottom: 40px;
        }

        .hero h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: clamp(2rem, 6vw, 3.5rem);
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: all 0.3s ease;
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
            opacity: 0.9;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
            margin-top: 30px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 14px 30px;
            font-size: 1.1rem;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
        }

        .btn-secondary {
            background: transparent;
            color: var(--light);
            border: 1px solid var(--border);
            padding: 14px 30px;
            font-size: 1.1rem;
            border-radius: 12px;
        }

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

        /* QR Generator Section */
        .qr-generator {
            background: var(--card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }

        .qr-preview-container {
            flex: 1;
            min-width: 300px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .generator-options {
            flex: 2;
            min-width: 300px;
        }

        .generator-options {
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 30px;
            box-shadow: var(--shadow);
        }

        .option-group {
            margin-bottom: 25px;
        }

        .option-group h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .qr-types {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 10px;
            scrollbar-width: thin;
            scrollbar-color: var(--border) transparent;
        }

        .qr-types::-webkit-scrollbar {
            height: 6px;
        }

        .qr-types::-webkit-scrollbar-thumb {
            background-color: var(--border);
            border-radius: 3px;
        }

        .qr-type {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 12px 5px;
            background: var(--glass-dark);
            border: 1px solid var(--border);
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-align: center;
            min-height: 70px;
        }

        .qr-type i {
            font-size: 18px;
            margin-bottom: 5px;
            color: var(--secondary);
            transition: all 0.2s ease;
        }

        .qr-type span {
            font-size: 12px;
            font-weight: 500;
            display: block;
        }

        .qr-type:hover {
            background: var(--glass);
            transform: translateY(-2px);
        }

        .qr-type.active {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-color: var(--primary);
        }

        .qr-type.active i,
        .qr-type.active span {
            color: white;
        }

        [data-theme="light"] .qr-type:hover i {
            color: var(--primary);
        }

        .qr-type {
            background: var(--glass-dark);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 15px 10px;
            text-align: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .qr-type:hover {
            background: var(--glass);
            transform: translateY(-3px);
        }

        .qr-type.active {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-color: var(--primary);
        }

        .qr-type i {
            font-size: 24px;
            margin-bottom: 8px;
            color: var(--text-primary);
            transition: color 0.2s ease;
        }

        [data-theme="dark"] .qr-type i {
            color: var(--secondary);
        }

        .qr-type.active i {
            color: white;
        }

        .qr-type span {
            display: block;
            font-size: 0.9rem;
            font-weight: 500;
        }

        .input-group {
            margin-bottom: 15px;
        }

        .input-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #e2e8f0;
        }

        .input-group input,
        .input-group select,
        .input-group textarea {
            width: 100%;
            padding: 12px 14px;
            background: var(--input-bg);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all 0.2s ease;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
        }

        .input-group textarea {
            min-height: 80px;
            resize: vertical;
            font-family: inherit;
            line-height: 1.5;
        }

        .file-upload {
            display: block;
            margin-top: 5px;
            padding: 12px 14px;
            background: var(--bg-secondary);
            border: 2px dashed var(--border);
            border-radius: 8px;
            cursor: pointer;
            text-align: center;
            transition: all 0.2s ease;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 500;
        }

        .file-upload:hover {
            background: var(--glass);
            border-color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
        }

        .file-upload input[type="file"] {
            display: none;
        }

        .file-info {
            font-size: 0.9rem;
            margin-top: 6px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: color 0.2s ease;
        }

        .input-group input:focus,
        .input-group select:focus,
        .input-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
        }

        .content-panel {
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(5px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .input-group input,
        .input-group select,
        .input-group textarea {
            width: 100%;
            padding: 14px;
            background: var(--glass-dark);
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--light);
            font-size: 1rem;
            transition: var(--transition);
        }

        .input-group input:focus,
        .input-group select:focus,
        .input-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3);
        }

        .color-picker {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .color-option {
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }

        .color-box {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            transition: var(--transition);
            border: 2px solid transparent;
        }

        .color-option:hover .color-box {
            transform: scale(1.1);
        }

        .color-option.active .color-box {
            border-color: white;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
        }

        .size-options {
            display: flex;
            gap: 8px;
            margin-top: 15px;
            flex-wrap: wrap;
            justify-content: center;
            padding: 5px;
        }

        .size-option {
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(0, 0, 0, 0.1);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 13px;
            font-weight: 600;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 50px;
            color: #333;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
        }

        .size-option i {
            font-size: 16px;
            margin-bottom: 4px;
            opacity: 0.8;
        }

        .size-option span {
            font-size: 12px;
            font-weight: 700;
        }

        .size-option:hover {
            background: #f5f5f5;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .size-option.active {
            background: #000000;
            color: white;
            border-color: #000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .size-option.active i {
            opacity: 1;
            color: white;
        }

        .preview-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .qr-preview {
            background: white;
            padding: 20px;
            border-radius: 20px;
            margin-bottom: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            position: relative;
            overflow: hidden;
        }

        .qr-preview::before {
            content: '';
            position: absolute;
            top: -10px;
            left: -10px;
            right: -10px;
            bottom: -10px;
            background: linear-gradient(45deg, var(--primary), var(--secondary), var(--accent), var(--primary));
            z-index: -1;
            border-radius: 25px;
            animation: gradient-border 3s ease infinite;
            background-size: 300% 300%;
        }

        @keyframes gradient-border {
            0% {
                background-position: 0% 50%;
            }

            50% {
                background-position: 100% 50%;
            }

            100% {
                background-position: 0% 50%;
            }
        }

        #qr-canvas {
            border-radius: 10px;
            max-width: 250px;
        }

        .download-btn {
            background: linear-gradient(135deg, var(--accent) 0%, #0da76e 100%);
            color: white;
            padding: 14px 30px;
            border: none;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
        }

        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
        }

        /* Features Section */
        .features {
            margin-bottom: 60px;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.5rem;
            margin-bottom: 15px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-title p {
            font-size: 1.2rem;
            color: #cbd5e1;
            max-width: 700px;
            margin: 0 auto;
        }

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

        .feature-card {
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
        }

        .feature-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 30px;
        }

        .feature-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--light);
        }

        .feature-card p {
            color: #cbd5e1;
        }

        /* Footer */
        footer {
            background: var(--glass);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 50px 0 30px;
            box-shadow: var(--shadow);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
            padding: 0 40px;
        }

        .footer-column h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }

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

        .footer-column ul li {
            margin-bottom: 12px;
        }

        .footer-column ul li a {
            color: #cbd5e1;
            text-decoration: none;
            transition: var(--transition);
            display: inline-block;
        }

        .footer-column ul li a:hover {
            color: var(--secondary);
            transform: translateX(5px);
        }

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

        .social-links a {
            width: 45px;
            height: 45px;
            background: var(--glass-dark);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--light);
            text-decoration: none;
            transition: var(--transition);
            font-size: 1.2rem;
            border: 1px solid var(--border);
        }

        .social-links a:hover {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            transform: translateY(-3px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Animations */
        @keyframes float {
            0% {
                transform: translateY(0px);
            }

            50% {
                transform: translateY(-10px);
            }

            100% {
                transform: translateY(0px);
            }
        }

        .floating {
            animation: float 5s ease-in-out infinite;
        }

        /* Responsive Styles */
        @media (max-width: 1024px) {
            .qr-generator {
                flex-direction: column;
                align-items: stretch;
            }

            .qr-preview-container {
                margin-bottom: 30px;
            }
        }

        @media (max-width: 1024px) {
            header {
                padding: 10px 15px;
                position: relative;
                flex-wrap: nowrap;
            }

            nav {
                position: fixed;
                top: 80px;
                left: 0;
                right: 0;
                background: var(--card-bg);
                backdrop-filter: blur(10px);
                border-bottom: 1px solid var(--border);
                padding: 20px;
                box-shadow: var(--shadow);
                z-index: 100;
                transform: translateY(-150%);
                transition: transform 0.3s ease-in-out;
                opacity: 0;
                pointer-events: none;
                border-radius: 0 0 12px 12px;
            }

            nav.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            nav ul {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }

            nav a {
                display: block;
                padding: 8px 0;
                width: 100%;
            }

            .mobile-menu-btn {
                display: flex;
                order: 3;
            }

            .header-actions {
                order: 2;
                margin-left: auto;
            }

            .auth-buttons {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 20px;
                gap: 10px;
            }

            .auth-buttons .btn {
                width: 100%;
                text-align: center;
            }

            nav.active+.header-actions .auth-buttons {
                display: flex;
            }

            .logo {
                order: 1;
            }

            .hero {
                padding: 40px 15px;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1.1rem;
            }

            .hero-buttons {
                flex-direction: column;
                gap: 12px;
            }

            .btn {
                width: 100%;
                text-align: center;
            }

            .qr-types {
                grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
                gap: 8px;
            }

            .qr-type {
                padding: 10px 5px;
                font-size: 0.8rem;
            }

            .qr-type i {
                font-size: 20px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 10px;
            }

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

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

            .qr-preview {
                max-width: 100%;
                height: auto;
            }

            .file-upload {
                padding: 10px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 992px) {
            .qr-generator {
                grid-template-columns: 1fr;
            }

            .hero h1 {
                font-size: 2.8rem;
            }
        }

        @media (max-width: 768px) {
            nav ul {
                display: none;
            }

            .auth-buttons {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            /* Improve mobile dropdown styling */
            nav.active ul {
                display: flex;
            }

            nav a {
                border-radius: 8px;
            }

            nav a:hover {
                background: var(--glass);
                color: var(--secondary);
            }

            .hero h1 {
                font-size: 2.2rem;
            }

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

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

            .qr-types {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
          .disclaimer-container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 2rem;
            color: var(--text-color);
            line-height: 1.6;
        }

        .disclaimer-header {
            text-align: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid var(--primary-color);
        }

        .disclaimer-header h1 {
            font-family: 'Orbitron', sans-serif;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .disclaimer-content {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .disclaimer-section {
            margin-bottom: 2rem;
        }

        .disclaimer-section h2 {
            color: var(--primary-color);
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }

        .disclaimer-section p,
        .disclaimer-section ul {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }

        .disclaimer-section ul {
            padding-left: 1.5rem;
        }

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

        .last-updated {
            font-style: italic;
            text-align: right;
            color: var(--text-muted);
            margin-top: 2rem;
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            .disclaimer-container {
                padding: 1rem;
            }

            .disclaimer-content {
                padding: 1.5rem;
            }
        }

        @media (max-width: 576px) {
            .logo-text {
                font-size: 1.2rem;
            }

            .hero {
                padding: 40px 15px;
            }

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

            .section-title h2 {
                font-size: 2rem;
            }

            .feature-card {
                padding: 20px;
            }

            .generator-options {
                padding: 20px;
            }

            .qr-types {
                grid-template-columns: 1fr;
            }
        }
 .contact-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
            color: var(--text-color);
        }

        .contact-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .contact-header h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }

        .contact-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 800px;
            margin: 0 auto;
        }

        .contact-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .contact-form {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .contact-form h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--text-color);
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            background-color: var(--input-bg);
            color: var(--text-color);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
        }

        textarea.form-control {
            min-height: 150px;
            resize: vertical;
        }

        .btn-submit {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

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

        .contact-info {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            height: fit-content;
        }

        .contact-info h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.5rem;
        }

        .info-icon {
            background-color: rgba(99, 102, 241, 0.1);
            color: var(--primary-color);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
        }

        .info-content h3 {
            margin: 0 0 0.25rem 0;
            font-size: 1.1rem;
            color: var(--text-color);
        }

        .info-content p, .info-content a {
            margin: 0;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .info-content a:hover {
            color: var(--primary-color);
        }

        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
        }

        .social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--card-bg);
            color: var(--primary-color);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .social-link:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }

        .map-container {
            margin-top: 3rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .map-container iframe {
            width: 100%;
            height: 400px;
            border: none;
        }

        @media (max-width: 992px) {
            .contact-content {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .contact-container {
                padding: 1rem;
            }

            .contact-header h1 {
                font-size: 2rem;
            }

            .contact-form, .contact-info {
                padding: 1.5rem;
            }
        }