/* assets/css/main.css - CSS Principale */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* Variabili CSS */
:root {
    --primary-color: #0085DA;
    --primary-dark: #035c93;
    --secondary-color: #41908a;
    --accent-color: #FF9800;
    --success-color: #41908a;
    --warning-color: #d05f2e;
    --error-color: #e64845;
    --text-primary: #333;
    --text-secondary: #2b2a2a;
    --text-light: #999;
    --bg-primary: #fff;
    --bg-secondary: #d1d1d1;
    --border-color: #ddd;
    --border-radius: 8px;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 60px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 15px;
}

.header-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-logo {
    height: 36px;
    width: auto;
    display: block;
    object-fit: contain;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-btn {
    background: none;
    border: none;
    padding: 8px;
    border-radius: var(--border-radius);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: all 0.2s;
}

.header-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Main Content */
.main {
    margin-top: 40px;
    min-height: calc(100vh - 60px);
    padding: 20px 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    gap: 8px;
    min-height: 44px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #1976D2;
}

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

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

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

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

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
    min-height: 36px;
}

.btn-lg {
    padding: 16px 24px;
    font-size: 1.1rem;
    min-height: 52px;
}

.btn-full {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.2s;
    background: var(--bg-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-input:invalid {
    border-color: var(--error-color);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Grid System */
.grid {
    display: grid;
    gap: 15px;
}

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

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

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

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

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.font-bold { font-weight: 700; }
.font-medium { font-weight: 500; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--text-secondary); }
.text-light { color: var(--text-light); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-error { color: var(--error-color); }

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

.mb-0 { margin-bottom: 0; }
.mb-10 { margin-bottom: 10px; }
.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }

.mt-10 { margin-top: 10px; }
.mt-15 { margin-top: 15px; }
.mt-20 { margin-top: 20px; }

.p-10 { padding: 10px; }
.p-15 { padding: 15px; }
.p-20 { padding: 20px; }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.gap-10 { gap: 10px; }
.gap-15 { gap: 15px; }
.gap-20 { gap: 20px; }

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-hover);
}

.modal-header {
    padding: 20px 20px 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-success {
    background: #e8f5e8;
    border-color: var(--success-color);
    color: #2d5a2d;
}

.alert-error {
    background: #fdeaea;
    border-color: var(--error-color);
    color: #8b2635;
}

.alert-warning {
    background: #fff8e1;
    border-color: var(--warning-color);
    color: #8b6914;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        margin: 0;
        max-height: 100vh;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .header-title {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 10px 16px;
        font-size: 0.95rem;
    }
}

/* =========================================================
   Dark mode — ridefinisce le variabili e forza i colori
   degli input che il browser non aggiorna automaticamente
   ========================================================= */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary:    #b5b5b5;
        --text-secondary:  #aaa;
        --text-light:      #777;
        --bg-primary:      #000000;
        --bg-secondary:    #2a2a2a;
        --border-color:    #444;
        --shadow:          0 2px 10px rgba(0,0,0,0.4);
        --shadow-hover:    0 4px 20px rgba(0,0,0,0.5);
    }

    body {
        background-color: #121212;
        color: var(--text-primary);
    }

    /* Input e select: testo chiaro su sfondo scuro */
    .form-input,
    .form-select,
    input,
    select,
    textarea {
        background: var(--bg-secondary);
        color: var(--text-primary);
        border-color: var(--border-color);
    }

    .form-input::placeholder,
    input::placeholder,
    textarea::placeholder {
        color: var(--text-light);
    }

    /* Modal */
    .modal-content {
        background: var(--bg-primary);
        color: var(--text-primary);
    }

    .modal-header {
        border-bottom-color: var(--border-color);
    }

    .modal-footer {
        border-top-color: var(--border-color);
    }

    /* Alert */
    .alert-success {
        background: #1a3a1a;
        border-color: #4CAF50;
        color: #a5d6a7;
    }

    .alert-error {
        background: #3a1a1a;
        border-color: #f44336;
        color: #ef9a9a;
    }
    .calc-btn{
        background: var(--bg-primary);
        color: var(--text-primary);
    }
    .product-sku{
        background-color: var(--bg-primary) !important;
    }
    .header-logo{
        content: url('../../image/logo_tillup_dark.png') !important;   
    }
}