/* -----------------------------------------------------
   GLOBAL RESET + THEME VARIABLES
----------------------------------------------------- */

:root {
    --nc-font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --nc-bg: #F8FAFC;             /* fond général */
    --nc-white: #FFFFFF;
    --nc-border: #DCE1E5;         /* bord clair */
    --nc-border-dark: #BFC7CE;    /* bord plus foncé */
    --nc-text: #2C3E50;           /* texte principal */
    --nc-text-light: #6C7A89;     /* texte secondaire */
    --nc-primary: #1E73BE;        /* bleu vif (couleur principale) */
    --nc-primary-light: #569DE1;  /* bleu clair pour hover */
    --nc-accent: #26A69A;         /* accent teal */
    --nc-shadow: 0px 4px 12px rgba(0,0,0,0.06);
    --nc-radius: 12px;
    --nc-spacing: 24px;
    --nc-section-spacing: 32px;
}

/* Reset */
.nc-loadcalc *, 
.nc-loadcalc *::before, 
.nc-loadcalc *::after {
    box-sizing: border-box;
}

.nc-loadcalc {
    font-family: var(--nc-font);
    color: var(--nc-text);
    background: var(--nc-bg);
    padding: 40px 0;
}

.nc-container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 20px;
}

/* -----------------------------------------------------
   CARD (global container)
----------------------------------------------------- */

.nc-card {
    background: var(--nc-white);
    border-radius: var(--nc-radius);
    padding: var(--nc-spacing);
    margin-bottom: var(--nc-section-spacing);
    box-shadow: var(--nc-shadow);
    border: 1px solid var(--nc-border);
}

/* -----------------------------------------------------
   TITLES
----------------------------------------------------- */

.nc-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--nc-text);
}

.nc-section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--nc-text);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--nc-border);
}

/* -----------------------------------------------------
   GRID LAYOUTS
----------------------------------------------------- */

.nc-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.nc-grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

.nc-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* -----------------------------------------------------
   INPUTS
----------------------------------------------------- */

.nc-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nc-label {
    font-size: 14px;
    color: var(--nc-text-light);
    font-weight: 500;
}

.nc-input,
.nc-select,
.nc-textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 8px;
    border: 1px solid var(--nc-border-dark);
    background: #FFF;
    font-size: 15px;
    transition: all 0.2s ease;
    font-family: var(--nc-font);
}

.nc-input:focus,
.nc-select:focus,
.nc-textarea:focus {
    outline: none;
    border-color: var(--nc-primary);
    box-shadow: 0 0 0 2px rgba(30,115,190,0.25);
}

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

/* -----------------------------------------------------
   BUTTONS
----------------------------------------------------- */

.nc-btn {
    display: inline-block;
    padding: 12px 22px;
    background: var(--nc-primary);
    color: white;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background 0.2s ease;
    font-family: var(--nc-font);
}

.nc-btn:hover {
    background: var(--nc-primary-light);
}

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

.nc-btn-secondary {
    background: #ECEFF3;
    color: var(--nc-text);
}

.nc-btn-secondary:hover {
    background: #E1E6EB;
}

.nc-btn-danger {
    background: #E74C3C;
    color: white;
}

.nc-btn-danger:hover {
    background: #C0392B;
}

.nc-btn-group {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

/* -----------------------------------------------------
   TABLE / RESULT BLOCK
----------------------------------------------------- */

.nc-summary-box {
    background: #F7F9FC;
    border: 1px solid var(--nc-border);
    padding: 20px;
    border-radius: 10px;
    font-size: 16px;
}

.nc-summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--nc-border);
}

.nc-summary-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
    font-weight: 700;
    font-size: 18px;
    color: var(--nc-primary);
}

.nc-summary-row strong {
    font-weight: 600;
    color: var(--nc-text);
}

.nc-summary-label {
    color: var(--nc-text-light);
}

.nc-summary-value {
    font-weight: 600;
    color: var(--nc-text);
}

/* -----------------------------------------------------
   EQUIPMENT LIST
----------------------------------------------------- */

.nc-equipment-item {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--nc-border);
    border-radius: 8px;
    margin-bottom: 12px;
    background: #FAFBFC;
}

.nc-equipment-item input {
    padding: 8px 10px;
    border: 1px solid var(--nc-border-dark);
    border-radius: 6px;
    font-size: 14px;
}

.nc-equipment-item .nc-remove-btn {
    background: #E74C3C;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}

.nc-equipment-item .nc-remove-btn:hover {
    background: #C0392B;
}

/* -----------------------------------------------------
   ADD EQUIPMENT LINK
----------------------------------------------------- */

.nc-add-link {
    color: var(--nc-accent);
    font-size: 15px;
    cursor: pointer;
    font-weight: 600;
    margin-top: 10px;
    display: inline-block;
    padding: 8px 0;
}

.nc-add-link:hover {
    text-decoration: underline;
}

.nc-add-link::before {
    content: '+ ';
    font-size: 18px;
    font-weight: 700;
}

/* -----------------------------------------------------
   AUTO CALCULATION PANEL
----------------------------------------------------- */

.nc-auto-calc {
    background: #F0F4F8;
    border: 1px solid var(--nc-border);
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
    font-size: 14px;
}

.nc-auto-calc-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--nc-text);
}

.nc-auto-calc-item {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    color: var(--nc-text-light);
}

/* -----------------------------------------------------
   LOADING STATE
----------------------------------------------------- */

.nc-loading {
    opacity: 0.6;
    pointer-events: none;
}

.nc-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(30,115,190,0.3);
    border-radius: 50%;
    border-top-color: var(--nc-primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* -----------------------------------------------------
   ALERT MESSAGES
----------------------------------------------------- */

.nc-alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.nc-alert-success {
    background: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.nc-alert-error {
    background: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

/* -----------------------------------------------------
   RESPONSIVE RULES (MOBILE)
----------------------------------------------------- */

@media (max-width: 768px) {
    .nc-grid-2,
    .nc-grid-3,
    .nc-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .nc-card {
        padding: 18px;
    }
    
    .nc-title {
        font-size: 22px;
    }
    
    .nc-section-title {
        font-size: 18px;
    }
    
    .nc-btn {
        width: 100%;
        text-align: center;
    }
    
    .nc-btn-group {
        flex-direction: column;
    }
    
    .nc-equipment-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .nc-equipment-item input {
        width: 100%;
    }
    
    .nc-loadcalc {
        padding: 20px 0;
    }
}