/* Reset e variabili CSS */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #ec4899;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --border-hover: #475569;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--success-color));
    --gradient-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gradient-bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Login Page Styles */
.login-body {
    background: var(--gradient-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.login-container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 3rem 2rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

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

.logo i {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

.login-form {
    margin-bottom: 2rem;
}

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

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

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

.form-group input::placeholder {
    color: var(--text-muted);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

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

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

.login-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Background decorations */
.background-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    pointer-events: none;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Navigation */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-brand i {
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.logout-btn:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Main content */
.main-content {
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

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

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

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Authors Grid */
.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.author-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.author-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.author-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-hover);
}

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

.author-card.completed {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(99, 102, 241, 0.1));
    border-color: var(--success-color);
}

.author-card.completed::before {
    background: var(--success-color);
    transform: scaleX(1);
}

.author-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.author-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

.photo-count {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.vote-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.vote-status.completed {
    color: var(--success-color);
}

.vote-status.partial {
    color: var(--warning-color);
}

.vote-status.not-started {
    color: var(--text-muted);
}

/* Photos Container */
.photos-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 3rem;
}

.photo-card {
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.photo-card:hover {
    box-shadow: var(--shadow-xl);
}

.photo-image {
    width: 100%;
    max-height: 70vh;
    min-height: 400px;
    object-fit: contain;
    background: var(--bg-secondary);
    cursor: pointer;
}

.photo-info {
    padding: 2rem;
}

.photo-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    word-break: break-word;
    text-align: center;
}

.vote-section {
    margin-bottom: 1rem;
}

.vote-label {
    display: block;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1.1rem;
    text-align: center;
}

.vote-buttons {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 0.75rem;
    max-width: 700px;
    margin: 0 auto;
}

.vote-btn {
    padding: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 700;
    font-size: 1.1rem;
    text-align: center;
}

.vote-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.vote-btn.selected {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.vote-btn.selected:hover {
    background: var(--gradient-primary);
    transform: scale(1.1);
}

/* Progress Section */
.progress-section {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

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

.stat-card i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Ranking Container */
.ranking-container {
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.ranking-item:last-child {
    border-bottom: none;
}

.ranking-item:hover {
    background: var(--bg-secondary);
}

.ranking-position {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    min-width: 60px;
    text-align: center;
}

.ranking-position.first {
    color: #ffd700;
}

.ranking-position.second {
    color: #c0c0c0;
}

.ranking-position.third {
    color: #cd7f32;
}

.ranking-photo {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    margin: 0 1.5rem;
    background: var(--bg-secondary);
}

.ranking-info {
    flex: 1;
}

.ranking-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.ranking-author {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.ranking-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.ranking-score {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}

.average-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success-color);
}

.vote-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Loading */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.loading i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Admin Page Styles */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.admin-actions {
    margin-bottom: 2rem;
}

.admin-actions h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.warning-text {
    color: var(--warning-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.note-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.authors-admin-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.author-admin-item {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.author-admin-item:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.author-admin-info {
    flex: 1;
}

.author-admin-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.author-admin-details {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.author-admin-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-delete-author {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-delete-author:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-send-email {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
    box-shadow: var(--shadow-md);
}

.btn-send-email:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.btn-send-email i {
    font-size: 1.2rem;
}

/* Delete Modal */
.delete-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
}

.delete-modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.delete-modal-content {
    background: var(--bg-card);
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
}

.delete-modal-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.delete-modal-header i {
    font-size: 2rem;
    color: var(--danger-color);
}

.delete-modal-header h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: 0;
}

.delete-modal-body {
    padding: 2rem;
}

.delete-modal-body p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.delete-modal-body strong {
    color: var(--text-primary);
}

.delete-info-list {
    list-style: none;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin: 1rem 0;
}

.delete-info-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.delete-info-list i {
    color: var(--primary-color);
}

.delete-modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.btn-cancel, .btn-delete {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-cancel {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.btn-cancel:hover {
    background: var(--bg-tertiary);
}

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

.btn-delete:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* Modal pour foto a schermo intero */
.photo-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
}

.photo-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.photo-modal-content {
    max-width: 95vw;
    max-height: 95vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
}

.photo-modal-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1001;
}

.photo-modal-close:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

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

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

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

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
        position: relative;
    }
    
    /* Show hamburger on mobile */
    .hamburger {
        display: flex;
    }
    
    /* Hide nav-user by default on mobile */
    .nav-user {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: var(--bg-card);
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        gap: 0.5rem;
        border-left: 1px solid var(--border-color);
        transition: right 0.3s ease;
        box-shadow: var(--shadow-xl);
    }
    
    .nav-user.active {
        right: 0;
    }
    
    .nav-user > span {
        width: 100%;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 0.5rem;
    }
    
    .nav-link {
        width: 100%;
        padding: 1rem;
        justify-content: flex-start;
    }
    
    .logout-btn {
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .authors-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .photos-container {
        gap: 2rem;
    }
    
    .photo-image {
        min-height: 300px;
        max-height: 50vh;
    }
    
    .vote-buttons {
        grid-template-columns: repeat(5, 1fr);
        gap: 0.5rem;
    }
    
    .vote-btn {
        padding: 0.75rem;
        font-size: 1rem;
    }
    
    .stats-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .ranking-item {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .ranking-photo {
        margin: 0 0 1rem 0;
    }
    
    .ranking-score {
        margin-left: 0;
        margin-top: 1rem;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 1rem;
    }
    
    .login-card {
        padding: 2rem 1.5rem;
    }
    
    .stats-section {
        grid-template-columns: 1fr;
    }
    
    .vote-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}