/* CSS Variables per i temi */
:root {
    /* Day Theme (Default) */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-header: #ffffff;
    --bg-footer: #1e293b;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --text-light: #ffffff;
    
    --border-primary: #e2e8f0;
    --border-secondary: #e5e7eb;
    --border-hover: #dc2626;
    
    --accent-primary: #dc2626;
    --accent-secondary: #b91c1c;
    --accent-tertiary: #fef2f2;
    
    --shadow-light: rgba(0, 0, 0, 0.05);
    --shadow-medium: rgba(0, 0, 0, 0.1);
    --shadow-heavy: rgba(0, 0, 0, 0.15);
    
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
}

/* Night Theme */
[data-theme="night"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-header: #1e293b;
    --bg-footer: #0f172a;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --text-light: #ffffff;
    
    --border-primary: #334155;
    --border-secondary: #475569;
    --border-hover: #dc2626;
    
    --accent-primary: #dc2626;
    --accent-secondary: #b91c1c;
    --accent-tertiary: rgba(220, 38, 38, 0.1);
    
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.5);
    --shadow-heavy: rgba(0, 0, 0, 0.7);
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
}

/* Stile Generale e Font */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body { 
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; 
    background: var(--bg-primary); 
    color: var(--text-primary); 
    line-height: 1.6; 
}

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

/* Header e Navigazione */
header { 
    background: var(--bg-header); 
    border-bottom: 1px solid var(--border-primary); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    box-shadow: 0 1px 3px var(--shadow-light); 
}

nav { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 1rem 0; 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 1rem 20px; 
}

.logo { 
    font-size: 1.5rem; 
    font-weight: 700; 
    color: var(--accent-primary); 
}

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

.nav-links a { 
    color: var(--text-secondary); 
    text-decoration: none; 
    font-weight: 500; 
    transition: color 0.2s; 
}

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

.nav-links a.active { 
    color: var(--accent-primary); 
    font-weight: 600; 
}

/* Theme Switcher */
.theme-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 2rem;
}

.theme-toggle {
    position: relative;
    width: 60px;
    height: 30px;
    background: var(--border-secondary);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--border-primary);
}

.theme-toggle:hover {
    background: var(--accent-tertiary);
    border-color: var(--border-hover);
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    background: var(--bg-secondary);
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px var(--shadow-medium);
}

[data-theme="night"] .theme-toggle::before {
    transform: translateX(30px);
}

.theme-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    transition: opacity 0.3s ease;
}

.theme-icon.sun {
    left: 6px;
    opacity: 1;
}

.theme-icon.moon {
    right: 6px;
    opacity: 0;
}

[data-theme="night"] .theme-icon.sun {
    opacity: 0;
}

[data-theme="night"] .theme-icon.moon {
    opacity: 1;
}

/* Hero Section */
.hero-section { 
    text-align: center; 
    padding: 3rem 0; 
    background: var(--bg-secondary); 
    border-bottom: 1px solid var(--border-primary); 
}

.hero-section h1 { 
    font-size: 2.5rem; 
    font-weight: 800; 
    color: var(--text-primary); 
    margin-bottom: 1rem; 
}

.hero-section p { 
    font-size: 1.2rem; 
    color: var(--text-secondary); 
    max-width: 600px; 
    margin: 0 auto; 
}

/* Contenuto Principale e Sezioni */
.main-content { 
    padding-top: 2rem; 
}

.section { 
    padding: 2rem 0; 
    margin-bottom: 2rem; 
}

.section h2 { 
    font-size: 2rem; 
    font-weight: 700; 
    color: var(--text-primary); 
    text-align: center; 
    margin-bottom: 1rem; 
}

.section p { 
    font-size: 1.1rem; 
    color: var(--text-secondary); 
    text-align: center; 
    max-width: 800px; 
    margin: 0 auto 2.5rem; 
}

/* NUOVO LAYOUT A DUE COLONNE PER LA HOMEPAGE */
.buy-energy-container {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

/* COLONNA SINISTRA - VANTAGGI */
.benefits-column {
    padding: 2rem 0;
}

.benefits-column h2 {
    font-size: 2.2rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: left;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-primary);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 20px var(--shadow-medium);
    transform: translateY(-2px);
    background: var(--bg-card-hover);
}

.benefit-icon {
    font-size: 2.5rem;
    min-width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.benefit-content h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.benefit-content p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    text-align: left;
}

/* COLONNA DESTRA - FORM */
.form-column {
    position: sticky;
    top: 2rem;
}

.energy-form-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 30px var(--shadow-medium);
    border: 1px solid var(--border-primary);
}

.energy-form-card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-align: center;
}

/* Form Fields */
.form-field {
    margin-bottom: 1.5rem;
}

.form-field label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.form-field input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-secondary);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-field input[type="number"]:focus {
    outline: none;
    border-color: var(--border-hover);
    box-shadow: 0 0 0 3px var(--accent-tertiary);
}

/* Resource Selector */
.resource-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.resource-selector input[type="radio"] {
    display: none;
}

.resource-option {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 2px solid var(--border-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.resource-option:hover {
    border-color: var(--border-hover);
    background: var(--accent-tertiary);
}

.resource-selector input[type="radio"]:checked + .resource-option {
    border-color: var(--border-hover);
    background: var(--accent-primary);
    color: var(--text-light);
}

.resource-icon {
    font-size: 1.2rem;
}

/* Quick Amount Buttons */
.quick-amounts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.quick-btn {
    padding: 0.5rem;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.quick-btn:hover {
    border-color: var(--border-hover);
    background: var(--accent-tertiary);
    color: var(--accent-primary);
}

/* Duration Selector */
.duration-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.duration-selector input[type="radio"] {
    display: none;
}

.duration-type-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    border: 2px solid var(--border-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.duration-type-btn:hover {
    border-color: var(--border-hover);
    background: var(--accent-tertiary);
}

.duration-selector input[type="radio"]:checked + .duration-type-btn {
    border-color: var(--border-hover);
    background: var(--accent-primary);
    color: var(--text-light);
}

/* Duration Options */
.duration-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.duration-options input[type="radio"] {
    display: none;
}

.duration-option {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.duration-option:hover {
    border-color: var(--border-hover);
    background: var(--accent-tertiary);
}

.duration-options input[type="radio"]:checked + .duration-option {
    border-color: var(--border-hover);
    background: var(--accent-primary);
    color: var(--text-light);
}

.duration-select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-secondary);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.duration-select:focus {
    outline: none;
    border-color: var(--border-hover);
}

/* Info Box */
.info-box {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.info-row:last-child {
    margin-bottom: 0;
}

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

.info-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
    text-align: right;
}

.estimated-cost {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.2rem;
}

.old-price {
    text-decoration: line-through;
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

.new-price {
    color: var(--accent-primary);
    font-weight: 700;
    font-size: 0.8rem;
}

/* Buy Button */
.buy-button {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-light);
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.buy-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-heavy);
}

.buy-button:active {
    transform: translateY(0);
}

.buy-button:disabled {
    opacity: 0.7;
    transform: none;
    cursor: not-allowed;
}

.button-icon {
    font-size: 1.2rem;
}

/* Loading state */
.loading .buy-button {
    opacity: 0.8;
    cursor: not-allowed;
}

/* Form di Ricerca LEGACY (per buy.php e compatibilità) */
.quote-form { 
    background: var(--bg-card); 
    border-radius: 12px; 
    box-shadow: 0 4px 6px var(--shadow-light); 
    border: 1px solid var(--border-primary); 
    padding: 2.5rem; 
    margin: 0 auto; 
}

.quote-form form { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 1.5rem; 
}

.form-group { 
    margin-bottom: 0; 
}

.form-group label, div > label { 
    display: block; 
    font-weight: 600; 
    color: var(--text-primary); 
    margin-bottom: 0.5rem; 
    font-size: 0.9rem; 
}

.form-group input[type="number"], .form-group select { 
    width: 100%; 
    padding: 0.75rem; 
    border: 2px solid var(--border-secondary); 
    border-radius: 8px; 
    font-size: 1rem; 
    transition: border-color 0.2s; 
    background: var(--bg-secondary); 
    color: var(--text-primary);
}

.form-group input:focus, .form-group select:focus { 
    outline: none; 
    border-color: var(--border-hover); 
    box-shadow: 0 0 0 3px var(--accent-tertiary); 
}

.small-note { 
    font-size: 0.85rem; 
    color: var(--text-tertiary); 
    font-style: italic; 
    font-weight: normal; 
}

/* Stili per selezione durata LEGACY */
.form-group.duration-section .form-group-select { 
    width: auto; 
}

.duration-controls-wrapper { 
    display: flex; 
    flex-wrap: wrap; 
    align-items: center; 
    gap: 1.5rem; 
}

.duration-type-selector-inline { 
    display: flex; 
    align-items: center; 
    gap: 10px; 
}

.duration-type-selector-inline label { 
    font-weight: normal; 
    cursor: pointer; 
    margin-bottom: 0; 
    color: var(--text-primary);
}

.duration-options-inline { 
    display: flex; 
    align-items: center; 
    gap: 10px; 
}

.duration-options-inline label { 
    padding: 8px 12px; 
    border: 2px solid var(--border-secondary); 
    border-radius: 8px; 
    cursor: pointer; 
    background: var(--bg-secondary); 
    color: var(--text-primary);
    font-weight: 500; 
    transition: all 0.2s ease; 
    margin-bottom: 0; 
}

.duration-options-inline input[type="radio"] { 
    display: none; 
}

.duration-options-inline input[type="radio"]:checked + label { 
    background: var(--accent-primary); 
    color: var(--text-light); 
    border-color: var(--accent-primary); 
}

.duration-options-inline label:hover { 
    border-color: var(--border-hover); 
    background: var(--accent-tertiary);
}

#days_duration_selector_container { 
    display: flex; 
    align-items: center; 
}

/* Pulsante di Submit */
.submit-btn { 
    background: var(--accent-primary); 
    color: var(--text-light); 
    border: none; 
    padding: 0.75rem 2rem; 
    border-radius: 8px; 
    font-size: 1rem; 
    font-weight: 600; 
    cursor: pointer; 
    transition: all 0.2s; 
    width: 100%; 
}

.submit-btn:hover { 
    background: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.submit-btn:active { 
    transform: translateY(1px); 
}

/* Sezione Risultati (Tabella) */
.results-section { 
    background: var(--bg-card); 
    border-radius: 12px; 
    padding: 2rem; 
    border: 1px solid var(--border-primary); 
    margin-top: 2rem; 
}

.results-table-wrapper { 
    overflow-x: auto; 
}

.results-table { 
    width: 100%; 
    border-collapse: collapse; 
    margin-top: 1.5rem; 
    overflow: hidden; 
    border: 1px solid var(--border-primary); 
    border-radius: 8px; 
    background: var(--bg-card);
}

.results-table th { 
    background: var(--accent-primary); 
    color: var(--text-light); 
    padding: 1rem; 
    text-align: left; 
    font-weight: 600; 
    font-size: 0.9rem; 
    text-transform: uppercase; 
    letter-spacing: 0.5px; 
}

.results-table td { 
    padding: 1rem; 
    border-bottom: 1px solid var(--border-primary); 
    vertical-align: middle; 
    background: var(--bg-card);
    color: var(--text-primary);
}

.results-table tr:last-child td { 
    border-bottom: none; 
}

.results-table tr:hover td { 
    background-color: var(--bg-card-hover); 
}

.referral-button { 
    background: var(--accent-primary); 
    color: var(--text-light) !important; 
    border: none; 
    padding: 0.5rem 1.5rem; 
    border-radius: 6px; 
    font-size: 0.9rem; 
    font-weight: 600; 
    cursor: pointer; 
    text-decoration: none !important; 
    display: inline-block; 
    transition: all 0.2s; 
}

.referral-button:hover { 
    background: var(--accent-secondary); 
    transform: translateY(-1px);
}

/* Messaggi e Card */
.error-msg { 
    color: var(--danger); 
    background: var(--accent-tertiary); 
    border: 1px solid var(--border-hover); 
    padding: 1rem; 
    border-radius: 8px; 
    margin-bottom: 1.5rem; 
    text-align: center; 
    font-weight: 500; 
}

.card-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 2rem; 
    margin-top: 2rem; 
}

.card { 
    background: var(--bg-card); 
    border: 1px solid var(--border-primary); 
    border-radius: 8px; 
    padding: 1.5rem; 
    transition: all 0.2s; 
}

.card:hover { 
    border-color: var(--border-hover); 
    box-shadow: 0 4px 12px var(--shadow-medium); 
    background: var(--bg-card-hover);
}

.card h3 { 
    color: var(--text-primary); 
    margin-bottom: 1rem; 
    font-size: 1.1rem; 
}

.card p { 
    color: var(--text-secondary); 
    font-size: 0.9rem; 
    text-align: left; 
    margin: 0; 
}

.cta.secondary { 
    background: var(--text-secondary); 
    color: var(--text-light); 
    padding: 0.75rem 1.5rem; 
    border-radius: 8px; 
    transition: all 0.2s; 
    text-decoration: none; 
    display: inline-block; 
}

.cta.secondary:hover { 
    background: var(--text-primary); 
    transform: translateY(-1px);
}

/* Debug e Raw Data */
.raw-data-toggle { 
    cursor: pointer; 
    color: var(--accent-primary); 
    font-size: 0.8em; 
    text-decoration: underline; 
}

.raw-data-toggle:hover { 
    color: var(--accent-secondary); 
}

.raw-data { 
    background-color: var(--bg-tertiary); 
    color: var(--text-primary);
    padding: 12px; 
    border: 1px solid var(--border-primary); 
    font-family: 'Courier New', monospace; 
    font-size: 0.85rem; 
    max-height: 200px; 
    overflow-y: auto; 
    word-wrap: break-word; 
}

/* Exchange Logo Styles */
.exchange-logo { 
    height: 24px; 
    width: auto; 
    max-width: 120px; 
    object-fit: contain; 
    vertical-align: middle; 
    filter: brightness(1.1) contrast(1.1); 
}

.exchange-text-fallback { 
    font-weight: bold; 
    color: var(--text-primary); 
    font-size: 0.9rem; 
}

.platform-cell { 
    min-width: 100px; 
    text-align: center; 
}

/* Platform specific colors for fallback text */
.platform-tronify .exchange-text-fallback { 
    color: var(--success); 
}

.platform-tronenergize .exchange-text-fallback { 
    color: var(--info); 
}

.platform-tronenergy-market .exchange-text-fallback { 
    color: var(--warning); 
}

/* Dual Row Cell Styles */
.dual-row-cell { 
    padding: 8px 12px; 
}

.dual-row-cell .top-row { 
    font-weight: bold; 
    margin-bottom: 2px; 
    color: var(--text-primary);
}

.dual-row-cell .bottom-row { 
    font-size: 0.8em; 
    color: var(--text-secondary); 
}

/* Order Link */
.order-link { 
    display: inline-block; 
    padding: 6px 12px; 
    background-color: var(--accent-primary); 
    color: var(--text-light); 
    text-decoration: none; 
    border-radius: 4px; 
    font-size: 0.8rem; 
    font-weight: 500; 
    transition: all 0.2s; 
}

.order-link:hover { 
    background-color: var(--accent-secondary); 
    transform: translateY(-1px);
}

/* Progress Bar Styles */
.progress-bar { 
    width: 100%; 
    height: 12px; 
    background-color: var(--border-secondary); 
    border-radius: 6px; 
    overflow: hidden; 
    margin-bottom: 4px; 
}

.progress-bar-fill { 
    height: 100%; 
    transition: width 0.3s ease; 
}

.progress-low { 
    background: linear-gradient(90deg, var(--success) 0%, #34d399 100%); 
}

.progress-medium { 
    background: linear-gradient(90deg, var(--warning) 0%, #fbbf24 100%); 
}

.progress-high { 
    background: linear-gradient(90deg, var(--danger) 0%, #f87171 100%); 
}

/* Pagination Styles */
.pagination-container { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    margin: 2rem 0; 
    flex-wrap: wrap; 
    gap: 0.5rem; 
}

.pagination-info { 
    background: var(--bg-card); 
    padding: 1rem 1.5rem; 
    border-radius: 8px; 
    border: 1px solid var(--border-primary); 
    margin-bottom: 1rem; 
    text-align: center; 
    color: var(--text-secondary); 
    font-size: 0.9rem; 
}

.pagination { 
    display: flex; 
    gap: 0.25rem; 
    align-items: center; 
}

.pagination a, .pagination span { 
    padding: 0.5rem 0.75rem; 
    border: 1px solid var(--border-primary); 
    background: var(--bg-card); 
    color: var(--text-primary); 
    text-decoration: none; 
    border-radius: 6px; 
    font-size: 0.9rem; 
    transition: all 0.2s; 
    min-width: 40px; 
    text-align: center; 
}

.pagination a:hover { 
    background: var(--bg-card-hover); 
    border-color: var(--border-hover); 
    color: var(--accent-primary); 
}

.pagination .current { 
    background: var(--accent-primary); 
    color: var(--text-light); 
    border-color: var(--accent-primary); 
    font-weight: 600; 
}

.pagination .disabled { 
    background: var(--bg-tertiary); 
    color: var(--text-tertiary); 
    cursor: not-allowed; 
}

.pagination .ellipsis { 
    border: none; 
    background: transparent; 
    color: var(--text-tertiary); 
}

/* Footer */
footer { 
    background: var(--bg-footer); 
    color: var(--text-tertiary); 
    padding: 3rem 0; 
    margin-top: 4rem; 
}

.footer-content { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); 
    gap: 2rem; 
}

.footer-section h4 { 
    margin-bottom: 1rem; 
    color: var(--accent-primary); 
    font-size: 1rem; 
}

.footer-section a { 
    color: var(--text-tertiary); 
    text-decoration: none; 
    display: block; 
    margin-bottom: 0.5rem; 
    font-size: 0.9rem; 
    transition: color 0.2s; 
}

.footer-section a:hover { 
    color: var(--text-light); 
}

/* Loading Spinner */
.loading { 
    opacity: 0.7; 
    pointer-events: none; 
}

.loading .submit-btn::after { 
    content: ''; 
    position: absolute; 
    top: 50%; 
    left: 50%; 
    width: 20px; 
    height: 20px; 
    margin: -10px 0 0 -10px; 
    border: 2px solid rgba(255, 255, 255, 0.3); 
    border-top: 2px solid white; 
    border-radius: 50%; 
    animation: spin 1s linear infinite; 
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}

/* Stili per la Tabella delle Opportunità di Vendita */
.sell-offers-section {
    margin-top: 2.5rem;
}

.sell-offers-table-wrapper {
    overflow-x: auto;
}

.sell-offers-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
    background-color: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-primary);
    box-shadow: 0 4px 6px var(--shadow-light);
}

.sell-offers-table th,
.sell-offers-table td {
    border-bottom: 1px solid var(--border-primary);
    padding: 12px 15px;
    text-align: left;
    font-size: 0.9rem;
    vertical-align: top;
}

.sell-offers-table th {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.sell-offers-table td {
    color: var(--text-primary);
    background: var(--bg-card);
}

.sell-offers-table tr:last-child td {
    border-bottom: none;
}

.sell-offers-table tr:hover td {
    background-color: var(--bg-card-hover);
}

/* Colori specifici per piattaforma */
.platform-tronify { 
    color: var(--success); 
    font-weight: bold; 
}

.platform-tronenergize { 
    color: var(--info); 
    font-weight: bold; 
}

.platform-tronenergy-market { 
    color: var(--warning); 
    font-weight: bold; 
}

.sell-offers-table .small-note {
    font-size: 0.8em;
    font-weight: normal;
    color: var(--text-tertiary);
    display: block;
    white-space: normal;
}

/* RESPONSIVE */
/* ==================== MOBILE MENU CSS ==================== */

/* Mobile Menu Button - SEMPRE NASCOSTO di default */
.mobile-menu-btn {
    display: none !important; /* Nascosto di default */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
    position: relative;
    border-radius: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    margin: 2px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
    transform-origin: center;
}

/* Animazione hamburger → X */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

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

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Navigation Panel */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    max-width: 85vw;
    height: 100vh;
    background: var(--bg-header);
    border-left: 1px solid var(--border-primary);
    z-index: 1000;
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px var(--shadow-medium);
    overflow-y: auto;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-content {
    padding: 80px 20px 20px;
    min-height: 100vh;
}

.mobile-nav-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-nav-links li {
    margin-bottom: 0;
    border-bottom: 1px solid var(--border-primary);
}

.mobile-nav-links li:last-child {
    border-bottom: none;
}

.mobile-nav-links a {
    display: block;
    padding: 1rem 0;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    padding-left: 1rem;
    position: relative;
}

.mobile-nav-links a:hover {
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
    background: var(--accent-tertiary);
}

.mobile-nav-links a.active {
    color: var(--accent-primary);
    border-left-color: var(--accent-primary);
    font-weight: 600;
    background: var(--accent-tertiary);
}

/* Mobile Theme Switcher */
.mobile-theme-switcher {
    margin-top: 2rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border-primary);
}

.mobile-theme-label {
    display: block;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Prevent body scroll when mobile menu is open */
body.mobile-menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* ==================== MEDIA QUERIES AGGIORNATE ==================== */

/* Nascondi menu mobile su desktop */
@media (min-width: 769px) {
    .mobile-nav,
    .mobile-nav-overlay {
        display: none !important;
        visibility: hidden !important;
    }
    
    .mobile-menu-btn {
        display: none !important;
    }
}

/* MOBILE STYLES - SOVRASCRIVE TUTTO */
@media (max-width: 768px) {
    /* FORZA nascondere navigation desktop */
    .nav-links {
        display: none !important;
    }

    /* FORZA mostrare mobile menu button */
    .mobile-menu-btn {
        display: flex !important;
    }

    /* FORZA nascondere desktop theme switcher */
    .theme-switcher {
        display: none !important;
    }

    /* Adjust navigation padding */
    nav {
        padding: 1rem 15px;
    }
    
    nav.container {
        max-width: none;
        margin: 0;
        padding: 1rem 15px;
    }

    /* Adjust logo size */
    .logo {
        font-size: 1.3rem;
    }

    /* Ensure proper z-index for header */
    header {
        z-index: 1002;
    }
    
    /* Force mobile nav visibility when active */
    .mobile-nav.active {
        right: 0 !important;
        visibility: visible !important;
    }
    
    .mobile-nav-overlay.active {
        opacity: 1 !important;
        visibility: visible !important;
    }

    /* Existing responsive styles */
    .hero-section h1 { 
        font-size: 2rem; 
    }
    
    .quote-form { 
        padding: 1.5rem; 
    }
    
    .quote-form form { 
        grid-template-columns: 1fr; 
    }
    
    .duration-controls-wrapper { 
        flex-direction: column; 
        align-items: stretch; 
    }
    
    .pagination-container { 
        flex-direction: column; 
    }
    
    .pagination { 
        flex-wrap: wrap; 
        justify-content: center; 
    }
    
    .pagination a, .pagination span { 
        padding: 0.4rem 0.6rem; 
        font-size: 0.8rem; 
        min-width: 35px; 
    }
    
    /* New layout mobile styles */
    .energy-form-card {
        padding: 1.5rem;
    }
    
    .resource-selector {
        grid-template-columns: 1fr;
    }
    
    .duration-selector {
        grid-template-columns: 1fr;
    }
    
    .quick-amounts {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .benefit-item {
        padding: 1rem;
        gap: 1rem;
    }
    
    .benefit-icon {
        min-width: 50px;
        height: 50px;
        font-size: 2rem;
    }
    
    /* Buy energy container mobile */
    .buy-energy-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .form-column {
        position: static;
        order: -1;
    }
    
    .energy-form-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* ==================== DEBUG STYLES (rimuovi dopo il test) ==================== */

/* Decommentare solo per debug */
/*
@media (max-width: 768px) {
    .mobile-menu-btn {
        background: #ff0000 !important;
        border: 2px solid #000000 !important;
        display: flex !important;
    }
    
    .mobile-menu-btn span {
        background: #ffffff !important;
    }
}
*/

/* Platform specific colors for Feee.io */
.platform-feee-io .exchange-text-fallback { 
    color: #8b5cf6; /* Purple per Feee.io */
}

.platform-feee-io { 
    color: #8b5cf6; 
    font-weight: bold; 
}