/* ============================================
   STYLE.CSS - Brand Identity QSC
   Michela Frisoni - Evoluzione Libera
   Colori: Grigio Pantone 443C, Sabbia/Oro
   Font: Acumin Variable Concept
   ============================================ */

:root {
    /* Brand Colors */
    --grigio-chiaro: #E6E9EB;
    --grigio-medio: #969696;
    --grigio-scuro: #4A4A4A;
    --nero: #1A1A1A;
    --bianco: #FFFFFF;
    --oro: #C9A961;
    --sabbia: #D4C5A9;
    
    /* Functional Colors */
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
}

/* ============================================
   RESET & BASE
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 300;
    line-height: 1.6;
    color: var(--nero);
    background-color: var(--bianco);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

h2 {
    font-size: 2.25rem;
    font-weight: 600;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.375rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--oro);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--grigio-scuro);
}

/* ============================================
   LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-alt {
    background-color: var(--grigio-chiaro);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    background-color: var(--bianco);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--nero);
    font-weight: 400;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: all var(--transition-fast);
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--nero);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    background: linear-gradient(135deg, #2C2C2C 0%, #1A1A1A 100%);
    padding: 5rem 0 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    color: white;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M0,50 Q25,30 50,50 T100,50" stroke="%23C9A961" fill="none" opacity="0.1"/></svg>');
    opacity: 0.2;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    font-size: 3.5rem;
    line-height: 1.1;
    color: white;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--grigio-chiaro);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    line-height: 1.4;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C42 100%);
    color: var(--bianco);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s infinite;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

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

.hero-stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--oro);
    display: block;
    margin-bottom: 0.5rem;
}

.hero-stat-label {
    font-size: 0.9rem;
    color: var(--grigio-chiaro);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--oro) 0%, var(--sabbia) 100%);
    color: var(--bianco);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background-color: var(--grigio-chiaro);
    color: var(--nero);
}

.btn-secondary:hover {
    background-color: var(--grigio-medio);
    color: var(--bianco);
}

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

.btn-outline:hover {
    background-color: var(--oro);
    color: var(--bianco);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background-color: var(--bianco);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

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

.card-header {
    border-bottom: 1px solid var(--grigio-chiaro);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0;
}

.card-body {
    padding: var(--spacing-sm) 0;
}

.card-footer {
    border-top: 1px solid var(--grigio-chiaro);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* ============================================
   GRID SYSTEM
   ============================================ */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   BUNDLE SHOWCASE
   ============================================ */
.bundle-container {
    background: var(--bianco);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-lg) 0;
}

.bundle-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.price-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.price-original {
    font-size: 1.5rem;
    color: var(--grigio-medio);
    text-decoration: line-through;
}

.price-current {
    font-size: 3rem;
    color: var(--oro);
    font-weight: 700;
}

.price-currency {
    font-size: 1.5rem;
}

.bundle-items {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.bundle-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--grigio-chiaro);
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
}

.bundle-item:hover {
    background: rgba(201, 169, 97, 0.05);
    transform: translateX(5px);
}

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

.bundle-item-icon {
    font-size: 3rem;
    margin-right: var(--spacing-md);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--oro) 0%, var(--sabbia) 100%);
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(201, 169, 97, 0.3);
}

.bundle-item-details {
    flex: 1;
}

.bundle-item-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--nero);
}

.bundle-item-description {
    color: var(--grigio-medio);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.bundle-item-value {
    color: var(--oro);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: right;
}

.countdown {
    background: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
    color: var(--bianco);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    font-weight: 600;
    margin: var(--spacing-md) 0;
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.countdown-label {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.countdown-timer {
    font-size: 2.5rem;
    margin-top: var(--spacing-xs);
    font-weight: 700;
    font-family: 'Courier New', monospace;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.countdown-boxes {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.countdown-box {
    background: rgba(255, 255, 255, 0.15);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.countdown-box-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.countdown-box-label {
    display: block;
    font-size: 0.75rem;
    margin-top: 0.5rem;
    text-transform: uppercase;
    opacity: 0.9;
}

.stock-indicator {
    background: var(--warning);
    color: var(--nero);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: inline-block;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ============================================
   QUIZ
   ============================================ */
.quiz-container {
    max-width: 600px;
    margin: 0 auto;
}

.quiz-question {
    background: var(--bianco);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
}

.quiz-progress {
    width: 100%;
    height: 8px;
    background: var(--grigio-chiaro);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.quiz-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--oro) 0%, var(--sabbia) 100%);
    transition: width var(--transition-base);
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quiz-option {
    padding: var(--spacing-md);
    border: 2px solid var(--grigio-chiaro);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quiz-option:hover {
    border-color: var(--oro);
    background-color: rgba(201, 169, 97, 0.05);
}

.quiz-option.selected {
    border-color: var(--oro);
    background-color: rgba(201, 169, 97, 0.1);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--grigio-scuro);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--grigio-chiaro);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--oro);
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.form-control.error {
    border-color: var(--danger);
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.form-success {
    color: var(--success);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* ============================================
   DASHBOARD
   ============================================ */
.dashboard {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-lg);
    min-height: calc(100vh - 80px);
}

.sidebar {
    background: var(--grigio-chiaro);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.sidebar-menu {
    list-style: none;
}

.sidebar-item {
    margin-bottom: var(--spacing-xs);
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
    color: var(--nero);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link.active {
    background-color: var(--oro);
    color: var(--bianco);
}

.sidebar-icon {
    margin-right: var(--spacing-sm);
}

.dashboard-content {
    padding: var(--spacing-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bianco);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--oro);
    display: block;
}

.stat-label {
    color: var(--grigio-medio);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-icon {
    font-size: 2rem;
    color: var(--grigio-medio);
    opacity: 0.3;
    float: right;
}

/* ============================================
   TABLE
   ============================================ */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bianco);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table thead {
    background: var(--grigio-chiaro);
}

.table th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    color: var(--grigio-scuro);
}

.table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--grigio-chiaro);
}

.table tbody tr:hover {
    background-color: rgba(201, 169, 97, 0.05);
}

/* ============================================
   BADGES & LABELS
   ============================================ */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-success {
    background-color: var(--success);
    color: var(--bianco);
}

.badge-danger {
    background-color: var(--danger);
    color: var(--bianco);
}

.badge-warning {
    background-color: var(--warning);
    color: var(--nero);
}

.badge-info {
    background-color: var(--info);
    color: var(--bianco);
}

.badge-secondary {
    background-color: var(--grigio-medio);
    color: var(--bianco);
}

/* ============================================
   ALERTS
   ============================================ */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.alert-success {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

/* ============================================
   MODAL
   ============================================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bianco);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--grigio-medio);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--nero);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--nero);
    color: var(--grigio-chiaro);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: var(--oro);
    margin-bottom: var(--spacing-sm);
}

.footer-link {
    color: var(--grigio-chiaro);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.footer-link:hover {
    color: var(--oro);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--grigio-scuro);
    color: var(--grigio-medio);
    font-size: 0.9rem;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bianco);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .price-current {
        font-size: 2rem;
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    animation: spin 1s linear infinite;
}