/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors */
    --brand-black: #1d1d1b;
    --brand-white: #ffffff;
    --brand-yellow: #f9b233;
    
    /* Primary Color Scheme */
    --primary-color: var(--brand-black);
    --primary-dark: #000000;
    --secondary-color: #6c757d;
    --accent-color: var(--brand-yellow);
    --success-color: #28a745;
    --warning-color: var(--brand-yellow);
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: var(--brand-black);
    --white: var(--brand-white);
    
    /* Gray Scale */
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: var(--brand-black);
    --gray-900: #000000;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
    --border-radius-xl: 0.75rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition: all 0.2s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

.navbar {
    padding: 1rem 0;
}

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

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.logo-link:hover {
    transform: translateY(-1px);
}

.logo-icon {
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(29, 29, 27, 0.1);
}

.logo-link:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(29, 29, 27, 0.2);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--brand-black);
    margin-left: 0.75rem;
    font-family: var(--font-family);
    letter-spacing: -0.025em;
}

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

.nav-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link:hover {
    color: var(--brand-black);
}

.qrpass-link {
    background: linear-gradient(135deg, var(--brand-black), var(--brand-yellow));
    color: var(--brand-white) !important;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}

.qrpass-link:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.qrpass-label {
    background: var(--brand-yellow);
    color: var(--brand-black);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.25rem;
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-arrow {
    font-size: 0.75rem;
    transition: var(--transition);
}

.dropdown.active .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--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);
    z-index: 1000;
}

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

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--gray-100);
    color: var(--brand-black);
}

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

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    margin: 2px 0;
    transition: var(--transition);
}

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

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

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
}

/* Hero Section Moderna e Pulita */
.hero {
    background: linear-gradient(135deg, #1d1d1b 0%, #f9b233 100%);
    color: white;
    padding: 2.5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: visible;
    z-index: 10;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(249, 178, 51, 0.1) 50%, transparent 70%);
    animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.hero-content {
    position: relative;
    z-index: 2;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    opacity: 0.9;
    font-weight: 400;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-feature {
    background: rgba(255, 255, 255, 0.15);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* QR Selector Moderno */
.qr-selector {
    position: relative;
    z-index: 100;
    max-width: 700px;
    margin: 0 auto;
}

.main-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.type-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 1rem 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    min-height: 80px;
}

.type-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    border-color: #f9b233;
}

.type-btn.active {
    background: white;
    color: #1d1d1b;
    border-color: #f9b233;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.type-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.type-name {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1;
}

/* Dropdown "Altri tipi" */
.more-types {
    position: relative;
    display: flex;
    justify-content: center;
    z-index: 1000;
}

.more-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.more-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.more-btn svg {
    transition: transform 0.2s ease;
}

.more-types.open .more-btn svg {
    transform: rotate(180deg);
}

.more-menu {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 16px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    padding: 1.5rem;
    min-width: 300px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 2000;
    
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-10px) scale(0.95);
    transition: all 0.3s ease;
}

.more-types.open .more-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
}

.more-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-bottom: none;
    border-right: none;
}

.more-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.more-item {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #333;
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
}

.more-item:hover {
    background: #f9b233;
    color: #1d1d1b;
    transform: translateY(-1px);
    border-color: #1d1d1b;
}

/* Generator Section */
.generator {
    padding: 4rem 0;
    background: var(--gray-100);
    position: relative;
    z-index: 1;
}

.generator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: var(--white);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

.form-section h3 {
    color: var(--gray-800);
    margin-bottom: 1.5rem;
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

/* Form Tabs */
.form-tab {
    display: none;
}

.form-tab.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form Styles */
.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
    background: var(--white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--brand-black);
    box-shadow: 0 0 0 3px rgba(29, 29, 27, 0.1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.generate-btn {
    background: linear-gradient(135deg, var(--brand-black), var(--brand-yellow));
    color: var(--brand-white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    position: relative;
    overflow: hidden;
}

.generate-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.generate-btn:hover::before {
    left: 100%;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.generate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Preview Section */
.preview-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-preview {
    text-align: center;
    margin-bottom: 2rem;
}

.qr-preview h3 {
    color: var(--gray-800);
    margin-bottom: 1.5rem;
    font-size: var(--font-size-2xl);
    font-weight: 600;
}

#qr-display {
    background: var(--white);
    border: 2px dashed var(--gray-300);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 1rem;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.qr-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.download-btn {
    background: linear-gradient(135deg, var(--brand-yellow), #e09d1a);
    color: var(--brand-black);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 2px solid var(--brand-black);
}

.download-btn:hover {
    background: linear-gradient(135deg, #e09d1a, var(--brand-yellow));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: var(--brand-black);
}

/* WhatsApp Styles */
.whatsapp-info {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid #075e54;
    font-size: 0.9rem;
    line-height: 1.5;
}

.whatsapp-preview {
    background: var(--gray-100);
    padding: 1rem;
    border-radius: var(--border-radius-lg);
    margin: 1rem 0;
    border: 1px solid var(--gray-300);
}

.whatsapp-preview h4 {
    margin-bottom: 0.75rem;
    color: var(--brand-black);
    font-size: 0.9rem;
}

.message-preview {
    background: #e5ddd5;
    padding: 1rem;
    border-radius: 0.5rem;
    font-family: 'Segoe UI', sans-serif;
}

.whatsapp-bubble {
    background: #dcf8c6;
    padding: 0.75rem 1rem;
    border-radius: 1rem 1rem 0.25rem 1rem;
    max-width: 280px;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    border: 1px solid #b8e6a3;
}

.whatsapp-bubble::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: -8px;
    width: 0;
    height: 0;
    border: 8px solid transparent;
    border-top-color: #dcf8c6;
    border-right: none;
    margin-bottom: -8px;
}

#preview-message {
    font-size: 0.9rem;
    line-height: 1.4;
    color: #333;
    word-wrap: break-word;
}

/* Pixel Art Styles */
.pixel-art-info {
    background: linear-gradient(135deg, var(--brand-yellow), #ffd700);
    color: var(--brand-black);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--brand-black);
    font-size: 0.9rem;
    line-height: 1.5;
}

.file-input-container {
    position: relative;
    border: 2px dashed var(--brand-yellow);
    background: linear-gradient(135deg, rgba(249, 178, 51, 0.1), rgba(249, 178, 51, 0.05));
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.file-input-container:hover {
    border-color: var(--brand-black);
    background: linear-gradient(135deg, rgba(249, 178, 51, 0.2), rgba(249, 178, 51, 0.1));
}

.file-input {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

.file-input-text {
    pointer-events: none;
}

.file-input-text h4 {
    margin: 0 0 0.5rem 0;
    color: var(--brand-black);
    font-weight: 600;
}

.input-hint {
    color: var(--gray-600);
    font-size: 0.8rem;
    margin-top: 0.5rem;
    display: block;
}

.pixelart-controls {
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: var(--border-radius-lg);
    margin: 1.5rem 0;
    border: 1px solid var(--gray-300);
    display: none;
}

.pixelart-controls.show {
    display: block;
}

.control-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.pixel-preview-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
    margin-top: 1rem;
}

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

.preview-column h4 {
    margin-bottom: 0.5rem;
    color: var(--brand-black);
    font-size: 0.9rem;
    font-weight: 600;
}

.preview-column canvas {
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    background: white;
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
    max-width: 150px;
}

.preview-arrow {
    font-size: 1.5rem;
    color: var(--brand-yellow);
    font-weight: bold;
}

.size-info {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.size-bar {
    width: 100%;
    height: 4px;
    background: var(--gray-300);
    border-radius: 2px;
    margin-top: 0.25rem;
    overflow: hidden;
}

.size-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--warning-color), var(--danger-color));
    width: 0%;
    transition: width 0.3s ease;
}

/* QRpass Promotion Section */
.qrpass-promo {
    background: linear-gradient(135deg, var(--brand-black) 0%, var(--brand-yellow) 100%);
    color: var(--brand-white);
    padding: 4rem 0;
    position: relative;
}

.qrpass-promo::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect width="2" height="2" fill="%23f9b233" opacity="0.1"/></svg>');
    background-size: 20px 20px;
}

.promo-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.promo-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: 1rem;
}

.promo-text p {
    font-size: var(--font-size-lg);
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.promo-text ul {
    list-style: none;
    margin-bottom: 2rem;
}

.promo-text li {
    padding: 0.5rem 0;
    font-size: var(--font-size-base);
    opacity: 0.9;
}

.cta-btn {
    background: var(--brand-white);
    color: var(--brand-black);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: var(--transition);
    border: 2px solid var(--brand-yellow);
    position: relative;
    overflow: hidden;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--brand-yellow);
    transition: left 0.3s ease;
    z-index: -1;
}

.cta-btn:hover::before {
    left: 0;
}

.cta-btn:hover {
    color: var(--brand-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.demo-qr {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    backdrop-filter: blur(10px);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: var(--white);
}

.features h2 {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--gray-800);
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    background: var(--brand-white);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    border: 2px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-black), var(--brand-yellow));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-yellow);
}

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

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

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

/* Footer Styles */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 3rem 0 1rem;
}

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

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

.footer-section h3 {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-logo-icon {
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.footer-logo-text {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-left: 0.5rem;
    font-family: var(--font-family);
    letter-spacing: -0.025em;
}

.footer-description {
    line-height: 1.6;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--gray-300);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--brand-yellow);
    color: var(--brand-black);
    transform: translateY(-2px);
}

.footer-title {
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 1rem;
}

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

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

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--brand-yellow);
}

.footer-cta {
    display: inline-block;
    background: var(--brand-yellow);
    color: var(--brand-black);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.footer-cta:hover {
    background: #e09d1a;
    transform: translateY(-1px);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-copyright {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-legal a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--brand-yellow);
}

.footer-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: var(--font-size-sm);
    opacity: 0.7;
}

.tech-info {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tech-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
}

.powered-by a {
    color: var(--brand-yellow);
    text-decoration: none;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--brand-black), var(--brand-yellow));
    color: var(--brand-white);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px);
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* Error Message Styles */
.error-message {
    text-align: center;
    padding: 2rem;
    color: var(--danger-color);
    border: 2px dashed var(--danger-color);
    border-radius: var(--border-radius-lg);
    background: rgba(220, 53, 69, 0.05);
}

.error-message p {
    margin-bottom: 1rem;
    font-size: var(--font-size-base);
}

.retry-btn {
    background: var(--warning-color);
    color: var(--brand-black);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.retry-btn:hover {
    background: #e09d1a;
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .generator-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .promo-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero {
        padding: 2rem 0 3rem;
    }
    
    .main-types {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }
    
    .type-btn {
        padding: 0.75rem 0.5rem;
        min-height: 70px;
    }
    
    .type-icon {
        font-size: 1.25rem;
    }
    
    .type-name {
        font-size: 0.75rem;
    }
    
    .more-menu {
        min-width: 280px;
        padding: 1.25rem;
    }
    
    .more-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        box-shadow: var(--shadow-lg);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-list {
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav-link {
        display: block;
        padding: 1rem;
        width: 100%;
    }
    
    .qrpass-link {
        background: none;
        color: var(--brand-black) !important;
        justify-content: center;
    }
    
    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        border: none;
        border-top: 1px solid var(--gray-200);
        opacity: 1;
        visibility: visible;
        transform: none;
        background: var(--gray-100);
    }
    
    .hero h1 {
        font-size: 1.875rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-features {
        gap: 1rem;
    }
    
    .hero-feature {
        font-size: 0.75rem;
        padding: 0.3rem 0.75rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info {
        flex-direction: column;
        text-align: center;
    }
    
    .control-row {
        grid-template-columns: 1fr;
    }
    
    .pixel-preview-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .preview-arrow {
        transform: rotate(90deg);
    }
    
    .whatsapp-bubble {
        max-width: 220px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero {
        padding: 1.5rem 0 2.5rem;
    }
    
    .hero h1 {
        font-size: 1.625rem;
    }
    
    .main-types {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .type-btn {
        padding: 0.625rem 0.375rem;
        min-height: 60px;
    }
    
    .more-menu {
        min-width: 260px;
        left: 10px;
        right: 10px;
        transform: none;
    }
    
    .more-types.open .more-menu {
        transform: translateY(0) scale(1);
    }
    
    .generator-wrapper {
        padding: 1rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    .whatsapp-bubble {
        max-width: 180px;
        padding: 0.5rem 0.75rem;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --gray-300: #000000;
        --gray-600: #000000;
        --gray-700: #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .back-to-top,
    .qrpass-promo {
        display: none;
    }
    
    .generator-wrapper {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
    
    #qr-display img {
        max-width: 300px;
        height: auto;
    }
}