/* assets/css/style.css - QRCodeMaker.xyz */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    padding: 16px 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 18px;
    transition: var(--transition);
}

.logo:hover {
    color: var(--primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

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

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

/* Language Selector */
.lang-selector {
    position: relative;
}

.lang-button {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--gray-100);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}

.lang-button:hover {
    background: var(--gray-200);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    max-height: 400px;
    overflow-y: auto;
}

.lang-selector:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--gray-700);
    transition: var(--transition);
    border-bottom: 1px solid var(--gray-100);
}

.lang-dropdown a:last-child {
    border-bottom: none;
}

.lang-dropdown a:hover {
    background: var(--gray-50);
}

.lang-dropdown a.active {
    background: var(--primary);
    color: white;
}

.lang-native {
    font-weight: 600;
}

.lang-english {
    font-size: 13px;
    color: var(--gray-500);
}

.lang-dropdown a.active .lang-english {
    color: rgba(255, 255, 255, 0.8);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, var(--gray-50) 0%, #fff 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-700);
}

.feature svg {
    color: var(--success);
    flex-shrink: 0;
}

/* QR Generator Section */
.qr-generator {
    padding: 60px 0;
    background: white;
}

.generator-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--dark);
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 40px;
}

.text-center {
    text-align: center;
}

/* QR Types */
.qr-types {
    margin-bottom: 40px;
}

.type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 16px;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-700);
}

.type-btn:hover {
    border-color: var(--primary);
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.type-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.type-btn svg {
    width: 32px;
    height: 32px;
}

/* Generator Content */
.generator-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

/* Form Area */
.form-area {
    background: white;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 14px;
}

.form-control,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Customization Panel */
.customization-panel {
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.customization-panel h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--dark);
}

.custom-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.custom-item label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 13px;
}

.color-picker {
    width: 100%;
    height: 44px;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.color-picker:hover {
    border-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-generate {
    width: 100%;
    padding: 16px;
    font-size: 16px;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

/* Preview Area */
.preview-area {
    position: sticky;
    top: 100px;
}

.preview-area h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--dark);
}

.preview-box {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 40px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-placeholder {
    text-align: center;
    color: var(--gray-500);
}

.preview-placeholder p {
    margin-top: 16px;
    font-size: 14px;
}

.preview-box img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
}

.download-area {
    margin-top: 20px;
}

.download-area .btn {
    width: 100%;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: var(--border-radius);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Blog Section */
.blog-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 32px;
}

.blog-section {
    padding: 80px 0;
    background: white;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 48px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.blog-card {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.blog-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}

.blog-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--gray-200);
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.blog-category {
    padding: 4px 12px;
    background: #e0e7ff;
    color: #4338ca;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.blog-date, .blog-views {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: #6b7280;
}

.blog-content h3 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
    color: #111827;
    line-height: 1.4;
}

.blog-content p {
    margin: 0 0 12px 0;
    color: #6b7280;
    line-height: 1.6;
    font-size: 14px;
}

.blog-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
    margin-top: auto;
}

.blog-link:hover {
    color: #1d4ed8;
}

@media (max-width: 768px) {
    .blog-card {
        flex-direction: column;
    }
    
    .blog-icon {
        width: 60px;
        height: 60px;
        align-self: flex-start;
    }
    
    .blog-icon svg {
        width: 36px;
        height: 36px;
    }
}

.blog-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--dark);
    line-height: 1.4;
}

.blog-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.6;
}

.blog-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.blog-link:hover {
    color: var(--primary-dark);
    gap: 8px;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 18px;
    color: white;
    margin-bottom: 16px;
}

.footer-column h4 {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-column p {
    line-height: 1.7;
    margin-top: 12px;
}

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

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

.footer-column ul li a {
    color: var(--gray-300);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--gray-700);
    text-align: center;
}

/* Loading Spinner */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .generator-content {
        grid-template-columns: 1fr;
    }

    .preview-area {
        position: static;
    }

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

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .nav {
        display: none;
    }

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

    .type-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }

    .custom-grid {
        grid-template-columns: 1fr;
    }

    .hero-features {
        flex-direction: column;
        gap: 16px;
    }

    .section-header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .type-btn {
        padding: 16px 12px;
    }

    .type-btn span {
        font-size: 13px;
    }
}

/* Utility Classes */
.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

.mt-3 {
    margin-top: 24px;
}

.mt-4 {
    margin-top: 32px;
}

.mb-1 {
    margin-bottom: 8px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.mb-4 {
    margin-bottom: 32px;
}

.p-1 {
    padding: 8px;
}

.p-2 {
    padding: 16px;
}

.p-3 {
    padding: 24px;
}

.p-4 {
    padding: 32px;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Alert Messages */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}