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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header & Title */
header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
}

.title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    margin: 0 auto 1rem;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    text-align: center;
    width: 100%;
}

.word {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideIn 0.8s ease-out forwards;
    opacity: 0;
}

.word:first-child {
    animation-delay: 0.1s;
}

.word:last-child {
    animation-delay: 0.5s;
}

.ampersand {
    display: inline-block;
    font-size: 0.8em;
    color: var(--primary-color);
    animation: pulse 2s ease-in-out infinite, slideIn 0.8s ease-out forwards;
    animation-delay: 0.3s, 0.3s;
    opacity: 0;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.subtitle {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
    text-align: center;
    animation: fadeIn 1s ease-out 0.8s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Upload Section */
.upload-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.upload-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: scaleIn 0.5s ease-out forwards;
    opacity: 0;
}

.upload-card:nth-child(1) {
    animation-delay: 0.2s;
}

.upload-card:nth-child(2) {
    animation-delay: 0.4s;
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.upload-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.upload-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-align: center;
}

.upload-zone {
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-light);
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.upload-zone.drag-over {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.upload-zone svg {
    color: var(--primary-color);
    margin: 0 auto 1rem;
    display: block;
}

.upload-zone p {
    color: var(--text-light);
    font-size: 1rem;
    text-align: center;
}

.preview-container {
    margin-top: 1rem;
    position: relative;
    display: flex;
    justify-content: center;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.preview-container img {
    max-width: 100%;
    height: auto;
    max-height: 200px;
    display: block;
}

.remove-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--danger-color);
    color: white;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    line-height: 1;
}

.remove-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* Photos Grid */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.photo-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
    animation: fadeInUp 0.4s ease-out forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.photo-item:hover {
    transform: scale(1.05);
}

.photo-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.photo-item .remove-btn {
    top: 5px;
    right: 5px;
    width: 24px;
    height: 24px;
    font-size: 1.2rem;
}

/* Editor Section */
.editor-section, .result-section {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 2rem;
    animation: slideInLeft 0.6s ease-out forwards;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-50px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.editor-section h2, .result-section h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    text-align: center;
}

.editor-controls {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
}

.editor-controls label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: center;
}

.editor-controls input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.editor-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.editor-controls input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.2);
}

.editor-controls input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.editor-controls input[type="range"]::-moz-range-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.2);
}

.canvas-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: #f0f0f0;
    border-radius: 12px;
    overflow: auto;
    min-height: 400px;
    max-height: 80vh;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

#editorCanvas {
    max-width: 100%;
    height: auto;
    cursor: move;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
}

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

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

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

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

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

/* Result Preview */
.result-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
    animation: fadeInUp 0.4s ease-out forwards;
    opacity: 0;
}

.result-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.result-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay p {
    color: white;
    font-size: 1.2rem;
    margin-top: 1rem;
    font-weight: 600;
    text-align: center;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem 0.5rem;
    }

    header {
        padding: 1.5rem 1rem;
        border-radius: 12px;
    }

    .title {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .upload-section {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .upload-card {
        padding: 1.5rem;
    }

    .upload-zone {
        padding: 2rem 1rem;
    }

    .photos-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 0.75rem;
    }

    .photo-item img {
        height: 100px;
    }

    .editor-section, .result-section {
        padding: 1.5rem;
        border-radius: 12px;
    }

    .editor-controls {
        padding: 1rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .result-preview {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 1rem;
    }

    .canvas-container {
        min-height: 300px;
        max-height: 50vh;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 0.2rem;
    }

    .ampersand {
        font-size: 1em;
    }

    .subtitle {
        font-size: 0.85rem;
    }

    .upload-card h2 {
        font-size: 1.2rem;
    }

    .photos-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }

    .photo-item img {
        height: 80px;
    }
}

/* ==================== AUTENTICAZIONE ==================== */
.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
}

.auth-container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 100%;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.4s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.3rem;
}

.auth-subtitle {
    color: var(--text-light);
    font-size: 0.95rem;
}

.auth-form {
    margin-top: 30px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 1rem;
    font-family: 'Courier New', monospace;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.auth-error {
    background: #fee;
    color: var(--danger-color);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    border-left: 4px solid var(--danger-color);
}

.auth-btn {
    width: 100%;
    margin-top: 10px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ==================== COOKIE BANNER ==================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 9999;
    animation: slideUp 0.4s ease-out;
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.cookie-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.cookie-content p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.cookie-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cookie-banner .btn {
    flex: 1;
    min-width: 140px;
}

/* ==================== COOKIE SETTINGS MODAL ==================== */
.cookie-settings-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    padding: 20px;
    animation: fadeIn 0.3s ease-out;
}

.cookie-settings-content {
    background: white;
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.cookie-settings-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cookie-settings-header h2 {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.close-btn:hover {
    background: var(--bg-light);
    color: var(--text-dark);
}

.cookie-settings-body {
    padding: 24px;
}

.cookie-category {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.cookie-category:last-child {
    border-bottom: none;
}

.cookie-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.cookie-category h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
}

.cookie-category p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-switch.disabled {
    opacity: 0.6;
    pointer-events: none;
}

.cookie-settings-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.cookie-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.cookie-link:hover {
    text-decoration: underline;
}

.btn-tertiary {
    background: white;
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

.btn-tertiary:hover {
    background: var(--bg-light);
    border-color: var(--text-light);
}

/* ==================== ANIMAZIONI ==================== */
@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(100%);
        opacity: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ==================== RESPONSIVE AUTH & COOKIE ==================== */
@media (max-width: 640px) {
    .auth-container {
        padding: 30px 20px;
    }
    
    .auth-title {
        font-size: 2rem;
    }
    
    .cookie-buttons {
        flex-direction: column;
    }
    
    .cookie-banner .btn {
        width: 100%;
    }
    
    .cookie-settings-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .cookie-settings-footer .btn {
        width: 100%;
    }
}