/* ===== Mobile Styles (Default) ===== */
#nz-calc{direction:rtl;font-family:IRANYekan;max-width:420px;margin:20px auto 0 auto;padding:16px;background:linear-gradient(180deg,#ecfdf5 0%,#fff 100%);border-radius:16px;box-sizing:border-box}
#nz-calc *{box-sizing:border-box;margin:0;padding:0}
#nz-calc .nz-header{text-align:center;margin-bottom:20px}
#nz-calc .nz-title{font-size:20px;font-weight:bold;color:#1f2937;margin:0 0 4px 0}
#nz-calc .nz-subtitle{font-size:14px;color:#6b7280;margin:0}
#nz-calc .nz-section{background:#fff;border-radius:16px;padding:16px;margin-bottom:16px;box-shadow:0 1px 3px rgba(0,0,0,0.1)}
#nz-calc .nz-label{font-size:14px;font-weight:500;color:#374151;display:block;margin-bottom:12px}
#nz-calc .nz-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
#nz-calc .nz-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
#nz-calc .nz-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
#nz-calc .nz-btn{padding:12px 8px;border-radius:12px;border:none;cursor:pointer;background:#f3f4f6;color:#4b5563;transition:all 0.2s;display:flex;flex-direction:column;align-items:center}
#nz-calc .nz-btn:hover{background:#e5e7eb}
#nz-calc .nz-btn.active{background:#0ea5e9;color:#fff;box-shadow:0 4px 6px rgba(0,0,0,0.1);transform:scale(1.05)}
#nz-calc .nz-btn svg{width:20px;height:20px;margin-bottom:4px}
#nz-calc .nz-btn span{font-size:12px;font-weight:500}
#nz-calc .nz-flex-between{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
#nz-calc .nz-area-value{font-size:18px;font-weight:bold;color:#10b981}
#nz-calc .nz-slider{width:100%;height:8px;background:#e5e7eb;border-radius:8px;-webkit-appearance:none;appearance:none;cursor:pointer;outline:none}
#nz-calc .nz-slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;background:#10b981;border-radius:50%;cursor:pointer}
#nz-calc .nz-slider::-moz-range-thumb{width:20px;height:20px;background:#10b981;border-radius:50%;cursor:pointer;border:none}
#nz-calc .nz-slider-labels{display:flex;justify-content:space-between;font-size:12px;color:#9ca3af;margin-top:4px}
#nz-calc .nz-suggestion{font-size:12px;color:#d97706;background:#fef3c7;padding:4px 8px;border-radius:999px;display:none}
#nz-calc .nz-suggestion.show{display:inline-block}
#nz-calc .nz-time-label{font-size:12px;color:#9ca3af;margin-right:8px}
#nz-calc .nz-hour-btn{padding:12px;border-radius:12px;border:none;cursor:pointer;background:#f3f4f6;color:#4b5563;transition:all 0.2s;text-align:center}
#nz-calc .nz-hour-btn:hover{background:#e5e7eb}
#nz-calc .nz-hour-btn.active{background:#0ea5e9;color:#fff;box-shadow:0 4px 6px rgba(0,0,0,0.1)}
#nz-calc .nz-hour-num{font-size:14px;font-weight:bold;display:block}
#nz-calc .nz-hour-text{font-size:12px;opacity:0.7;display:block}
#nz-calc .nz-gender-flex{display:flex;gap:8px}
#nz-calc .nz-gender-btn{flex:1;padding:8px;border-radius:12px;font-size:14px;border:none;cursor:pointer;background:#f3f4f6;color:#4b5563;transition:all 0.2s}
#nz-calc .nz-gender-btn.male{background:#10b981;color:#fff}
#nz-calc .nz-gender-btn.female{background:#ec4899;color:#fff}
#nz-calc .nz-warnings{display:none;flex-wrap:wrap;gap:8px;margin-top:8px;width:100%}
#nz-calc .nz-warnings.show{display:flex}
#nz-calc .nz-warning{display:flex;align-items:center;gap:4px;font-size:11px;padding:6px 8px;border-radius:8px}
#nz-calc .nz-warning svg{width:14px;height:14px;flex-shrink:0}
#nz-calc .nz-warning.amber{color:#d97706;background:#fef3c7}
#nz-calc .nz-warning.pink{color:#db2777;background:#fce7f3}
#nz-calc .nz-count-box{display:flex;align-items:center;justify-content:center;gap:12px;background:#f3f4f6;border-radius:12px;padding:4px}
#nz-calc .nz-count-btn{width:32px;height:32px;border-radius:8px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,0.1);border:none;font-weight:bold;font-size:16px;color:#4b5563;cursor:pointer}
#nz-calc .nz-count-value{font-size:18px;font-weight:bold;color:#1f2937;width:24px;text-align:center}
#nz-calc .nz-extra-btn{width:100%;display:flex;align-items:center;justify-content:space-between;padding:12px;border-radius:12px;border:2px solid transparent;background:#f3f4f6;cursor:pointer;margin-bottom:8px;text-align:right;transition:all 0.2s}
#nz-calc .nz-extra-btn:last-child{margin-bottom:0}
#nz-calc .nz-extra-btn.active{background:#d1fae5}
#nz-calc .nz-extra-btn.disabled{opacity:0.5;cursor:not-allowed}
#nz-calc .nz-extra-inner{display:flex;align-items:center;gap:12px}
#nz-calc .nz-checkbox{width:20px;height:20px;border-radius:6px;display:flex;align-items:center;justify-content:center;background:#e5e7eb;flex-shrink:0}
#nz-calc .nz-checkbox.checked{background:#10b981}
#nz-calc .nz-checkbox svg{width:12px;height:12px;color:#fff}
#nz-calc .nz-extra-label{font-size:14px;color:#374151}
#nz-calc .nz-extra-btn.disabled .nz-extra-label{color:#9ca3af}
#nz-calc .nz-extra-tooltip{font-size:12px;color:#9ca3af;display:block}
#nz-calc .nz-extra-price{font-size:12px;color:#9ca3af}
#nz-calc .nz-extras-wrapper{display:block}
#nz-calc .nz-result-inline{display:none}
#nz-calc .nz-notes{background:#fef3c7;border-radius:16px;padding:16px;border:1px solid #fde68a;margin-bottom:16px}
#nz-calc .nz-notes-title{font-size:14px;font-weight:500;color:#b45309;margin-bottom:12px}
#nz-calc .nz-notes-list{list-style:none;padding:0;margin:0}
#nz-calc .nz-notes-list li{display:flex;align-items:center;gap:8px;font-size:12px;color:#92400e;margin-bottom:8px}
#nz-calc .nz-notes-list li:last-child{margin-bottom:0}
#nz-calc .nz-notes-list ul li:before{display:none}
#nz-calc .nz-notes-dot{width:6px;height:6px;background:#f59e0b;border-radius:50%;flex-shrink:0}
#nz-calc .nz-trust{background:#fff;border-radius:16px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,0.1);border:1px solid #f3f4f6;margin-bottom:16px}
#nz-calc .nz-trust-badges{display:flex;gap:8px;justify-content:center;margin-bottom:16px}
#nz-calc .nz-trust-badge{display:flex;align-items:center;gap:4px;font-size:12px;color:#6b7280;background:#d1fae5;padding:8px 12px;border-radius:999px}
#nz-calc .nz-trust-badge svg{width:16px;height:16px;color:#10b981}
#nz-calc .nz-trust-stats{display:flex;justify-content:center;gap:32px;text-align:center;border-top:1px solid #f3f4f6;padding-top:16px}
#nz-calc .nz-trust-stat-value{font-size:20px;font-weight:bold;color:#10b981}
#nz-calc .nz-trust-stat-label{font-size:12px;color:#9ca3af}
#nz-calc .nz-trust-divider{width:1px;background:#e5e7eb}
#nz-calc .nz-result{background:linear-gradient(to right,#0ea5e9,#0284c7);border-radius:16px;padding:20px;box-shadow:0 10px 15px rgba(0,0,0,0.1);margin-bottom:16px}
#nz-calc .nz-result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
#nz-calc .nz-result-label{font-size:14px;color:#bae6fd}
#nz-calc .nz-result-badge{font-size:12px;background:rgba(255,255,255,0.2);color:#fff;padding:4px 8px;border-radius:999px}
#nz-calc .nz-result-price{text-align:center;transition:all 0.3s}
#nz-calc .nz-result-price.animate{transform:scale(1.1)}
#nz-calc .nz-result-price-value{font-size:32px;font-weight:bold;color:#fff;transition:color 0.3s}
#nz-calc .nz-result-price-value.animate{color:#fef08a}
#nz-calc .nz-result-price-unit{font-size:14px;color:#bae6fd;margin-right:8px}
#nz-calc .nz-submit-btn{width:100%;margin-top:16px;background:#fff;color:#0ea5e9;font-weight:bold;font-size:14px;padding:16px;border-radius:12px;border:none;box-shadow:0 4px 6px rgba(0,0,0,0.1);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all 0.2s}
#nz-calc .nz-submit-btn:hover{background:#10b981;color:#fff;transform:scale(1.02)}
#nz-calc .nz-submit-btn svg{width:20px;height:20px}
#nz-calc .nz-recalc-btn{width:100%;margin-top:10px;background:#f3f4f6;color:#374151;font-weight:500;font-size:13px;padding:12px;border-radius:10px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all 0.2s}
#nz-calc .nz-recalc-btn:hover{background:#e5e7eb}
#nz-calc .nz-recalc-btn svg{width:18px;height:18px}

/* Gallery - Before/After */
#nz-calc .nz-gallery{background:#fff;border-radius:16px;padding:16px;margin-top:16px;box-shadow:0 2px 8px rgba(0,0,0,0.06)}
#nz-calc .nz-gallery-title{font-size:14px;font-weight:600;color:#374151;margin-bottom:12px;text-align:center}
#nz-calc .nz-gallery-slider{position:relative;overflow:hidden}
#nz-calc .nz-gallery-item{display:none}
#nz-calc .nz-gallery-item.active{display:block}
#nz-calc .nz-compare{position:relative;width:100%;height:220px;border-radius:12px;overflow:hidden;cursor:ew-resize;user-select:none}
#nz-calc .nz-compare-before,#nz-calc .nz-compare-after{position:absolute;top:0;left:0;width:100%;height:100%}
#nz-calc .nz-compare-before{z-index:1}
#nz-calc .nz-compare-after{z-index:2;clip-path:inset(0 50% 0 0)}
#nz-calc .nz-compare img{width:100%;height:100%;object-fit:cover}
#nz-calc .nz-compare-label{position:absolute;bottom:10px;background:rgba(0,0,0,0.6);color:#fff;padding:4px 10px;border-radius:20px;font-size:11px}
#nz-calc .nz-compare-before .nz-compare-label{right:10px}
#nz-calc .nz-compare-after .nz-compare-label{left:10px}
#nz-calc .nz-compare-handle{position:absolute;top:0;left:50%;transform:translateX(-50%);width:4px;height:100%;z-index:10;display:flex;flex-direction:column;align-items:center;pointer-events:none}
#nz-calc .nz-compare-line{flex:1;width:2px;background:#fff;box-shadow:0 0 4px rgba(0,0,0,0.3)}
#nz-calc .nz-compare-circle{width:36px;height:36px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,0.2);pointer-events:auto}
#nz-calc .nz-compare-circle svg{width:18px;height:18px;color:#374151;transform:rotate(90deg)}
#nz-calc .nz-gallery-caption{text-align:center;font-size:13px;color:#6b7280;margin-top:10px}
#nz-calc .nz-gallery-nav{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:12px}
#nz-calc .nz-gallery-btn{width:36px;height:36px;border-radius:50%;background:#f3f4f6;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s}
#nz-calc .nz-gallery-btn:hover{background:#e5e7eb}
#nz-calc .nz-gallery-btn svg{width:18px;height:18px;color:#374151}
#nz-calc .nz-gallery-dots{display:flex;gap:8px}
#nz-calc .nz-gallery-dot{width:8px;height:8px;border-radius:50%;background:#d1d5db;cursor:pointer;transition:all 0.2s}
#nz-calc .nz-gallery-dot.active{background:#10b981;width:24px;border-radius:4px}

#nz-calc .nz-footer{text-align:center;font-size:12px;color:#9ca3af}

/* Progress & Nav - Hidden on Mobile */
#nz-calc .nz-progress{display:none}
#nz-calc .nz-nav{display:none}


/* ===== Desktop Styles (1024px+) ===== */
@media (min-width: 1024px) {
    #nz-calc{max-width:1120px;padding:20px 32px;margin:20px auto}
    #nz-calc .nz-header{margin-bottom:16px}
    #nz-calc .nz-title{font-size:22px}
    #nz-calc .nz-subtitle{font-size:14px}
    
    /* Progress Bar */
    #nz-calc .nz-progress{display:block;margin-bottom:16px}
    #nz-calc .nz-progress-bar{display:none}
    #nz-calc .nz-steps{display:flex;justify-content:center;gap:12px}
    #nz-calc .nz-step{width:32px;height:32px;border-radius:50%;background:#e5e7eb;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:#9ca3af;transition:all 0.2s;cursor:pointer}
    #nz-calc .nz-step.active{background:#10b981;color:#fff;transform:scale(1.1);box-shadow:0 2px 8px rgba(16,185,129,0.3)}
    #nz-calc .nz-step.completed{background:#10b981;color:#fff}
    
    /* Sections - Wizard Mode */
    #nz-calc .nz-section{display:none;margin-bottom:16px;padding:20px 24px;border-radius:14px}
    #nz-calc .nz-section.active{display:block}
    
    /* Elements */
    #nz-calc .nz-label{font-size:16px;margin-bottom:14px}
    #nz-calc .nz-grid-3{gap:16px}
    #nz-calc .nz-btn{padding:16px 12px;border-radius:12px}
    #nz-calc .nz-btn svg{width:28px;height:28px;margin-bottom:6px}
    #nz-calc .nz-btn span{font-size:14px}
    #nz-calc .nz-flex-between{margin-bottom:12px}
    #nz-calc .nz-area-value{font-size:20px}
    #nz-calc .nz-slider{height:8px}
    #nz-calc .nz-slider::-webkit-slider-thumb{width:20px;height:20px}
    #nz-calc .nz-slider::-moz-range-thumb{width:20px;height:20px}
    #nz-calc .nz-slider-labels{font-size:12px;margin-top:6px}
    #nz-calc .nz-grid-4{gap:12px}
    #nz-calc .nz-hour-btn{padding:14px 10px;border-radius:10px}
    #nz-calc .nz-hour-num{font-size:18px}
    #nz-calc .nz-hour-text{font-size:12px}
    #nz-calc .nz-suggestion{font-size:12px;padding:4px 10px}
    #nz-calc .nz-time-label{font-size:12px}
    #nz-calc .nz-grid-2{gap:20px}
    #nz-calc .nz-gender-btn{padding:12px;font-size:14px;border-radius:10px}
    #nz-calc .nz-count-btn{width:36px;height:36px;font-size:18px;border-radius:8px}
    #nz-calc .nz-count-value{font-size:20px;width:32px}
    #nz-calc .nz-count-box{gap:14px;padding:6px}
    #nz-calc .nz-extra-btn{padding:14px;border-radius:10px;margin-bottom:10px}
    #nz-calc .nz-extra-label{font-size:14px}
    #nz-calc .nz-extra-tooltip{font-size:12px}
    #nz-calc .nz-extra-price{font-size:13px}
    #nz-calc .nz-extra-inner{gap:12px}
    #nz-calc .nz-checkbox{width:22px;height:22px;border-radius:6px}
    #nz-calc .nz-checkbox svg{width:12px;height:12px}
    
    /* Step 5 - Two Column Layout: Extras Right, Result Left */
    #nz-calc .nz-section[data-step="5"]{padding:16px 20px;flex-wrap:wrap;gap:20px}
    #nz-calc .nz-section[data-step="5"].active{display:flex}
    #nz-calc .nz-section[data-step="5"] .nz-label{width:100%;margin-bottom:8px;font-size:15px}
    #nz-calc .nz-extras-wrapper{flex:1;min-width:280px;display:grid;grid-template-columns:1fr 1fr;gap:8px}
    #nz-calc .nz-extras-wrapper .nz-extra-btn{margin-bottom:0;padding:10px;flex-direction:column;text-align:center}
    #nz-calc .nz-extras-wrapper .nz-extra-inner{flex-direction:column;gap:4px;align-items:center}
    #nz-calc .nz-extras-wrapper .nz-extra-label{font-size:12px}
    #nz-calc .nz-extras-wrapper .nz-extra-tooltip{font-size:9px;text-align:center}
    #nz-calc .nz-extras-wrapper .nz-extra-price{font-size:10px;margin-top:2px}
    #nz-calc .nz-extras-wrapper .nz-checkbox{width:18px;height:18px}
    
    /* Result inside Step 5 */
    #nz-calc .nz-result-inline{flex:1;min-width:260px;background:linear-gradient(to right,#0ea5e9,#0284c7);border-radius:12px;padding:16px;display:none}
    #nz-calc .nz-result-inline.visible{display:block}
    #nz-calc .nz-result-inline .nz-result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
    #nz-calc .nz-result-inline .nz-result-label{font-size:12px;color:#bae6fd}
    #nz-calc .nz-result-inline .nz-result-badge{font-size:9px;background:rgba(255,255,255,0.2);color:#fff;padding:2px 6px;border-radius:999px}
    #nz-calc .nz-result-inline .nz-result-price{text-align:center}
    #nz-calc .nz-result-inline .nz-result-price-value{font-size:28px;font-weight:bold;color:#fff}
    #nz-calc .nz-result-inline .nz-result-price-unit{font-size:12px;color:#bae6fd;margin-right:6px}
    #nz-calc .nz-result-inline .nz-submit-btn{width:100%;margin-top:12px;background:#fff;color:#0ea5e9;font-weight:bold;font-size:13px;padding:12px;border-radius:10px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px}
    #nz-calc .nz-result-inline .nz-submit-btn:hover{background:#10b981;color:#fff}
    #nz-calc .nz-result-inline .nz-submit-btn svg{width:16px;height:16px}
    #nz-calc .nz-result-inline .nz-recalc-btn{width:100%;margin-top:8px;background:rgba(255,255,255,0.15);color:#fff;font-size:12px;padding:8px;border-radius:8px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:4px}
    #nz-calc .nz-result-inline .nz-recalc-btn:hover{background:rgba(255,255,255,0.25)}
    #nz-calc .nz-result-inline .nz-recalc-btn svg{width:14px;height:14px}
    #nz-calc .nz-warnings{margin-top:12px}
    #nz-calc .nz-warning{font-size:12px;padding:8px 12px;border-radius:8px}
    #nz-calc .nz-warning svg{width:14px;height:14px}
    
    /* Navigation - Below Section */
    #nz-calc .nz-nav{display:flex;justify-content:center;margin-bottom:16px;gap:12px}
    #nz-calc .nz-nav-btn{display:flex;align-items:center;gap:6px;padding:12px 32px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all 0.2s;border:none}
    #nz-calc .nz-prev{background:#f3f4f6;color:#6b7280}
    #nz-calc .nz-prev:hover{background:#e5e7eb}
    #nz-calc .nz-next{background:#10b981;color:#fff;box-shadow:0 4px 12px rgba(16,185,129,0.3)}
    #nz-calc .nz-next:hover{background:#059669;transform:translateY(-1px);box-shadow:0 6px 16px rgba(16,185,129,0.4)}
    #nz-calc .nz-next.disabled{background:#d1d5db;color:#9ca3af;cursor:not-allowed;box-shadow:none;transform:none}
    #nz-calc .nz-nav-btn svg{width:16px;height:16px}
    
    /* Result - Hidden in desktop when using inline */
    #nz-calc .nz-result{display:none;margin-bottom:16px;padding:20px;border-radius:14px}
    #nz-calc .nz-result.visible{display:none}
    #nz-calc .nz-result-header{margin-bottom:12px}
    #nz-calc .nz-result-label{font-size:14px}
    #nz-calc .nz-result-badge{font-size:11px;padding:4px 10px}
    #nz-calc .nz-result-price-value{font-size:36px}
    #nz-calc .nz-result-price-unit{font-size:16px}
    #nz-calc .nz-submit-btn{padding:16px;font-size:15px;border-radius:12px;margin-top:14px}
    #nz-calc .nz-submit-btn svg{width:20px;height:20px}
#nz-calc .nz-recalc-btn{width:100%;margin-top:10px;background:#f3f4f6;color:#374151;font-weight:500;font-size:13px;padding:12px;border-radius:10px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all 0.2s}
#nz-calc .nz-recalc-btn:hover{background:#e5e7eb}
#nz-calc .nz-recalc-btn svg{width:18px;height:18px}
    #nz-calc .nz-recalc-btn{width:100%;margin-top:10px;background:#f3f4f6;color:#374151;font-weight:500;font-size:13px;padding:10px;border-radius:10px;border:none;cursor:pointer;display:none;align-items:center;justify-content:center;gap:6px;transition:all 0.2s}
    #nz-calc .nz-recalc-btn:hover{background:#e5e7eb}
    #nz-calc .nz-recalc-btn svg{width:16px;height:16px}
    #nz-calc .nz-recalc-btn.visible{display:flex}
    
    /* Notes & Trust - Hidden until last step */
    #nz-calc .nz-notes{display:none;width:48%;vertical-align:top;margin:0 1% 0 0;padding:14px 16px;border-radius:12px}
    #nz-calc .nz-notes.visible{display:inline-block}
    #nz-calc .nz-trust{display:none;width:48%;vertical-align:top;margin:0 0 0 1%;padding:14px 16px;border-radius:12px}
    #nz-calc .nz-trust.visible{display:inline-block}
    #nz-calc .nz-notes-title{font-size:14px;margin-bottom:10px}
    #nz-calc .nz-notes-list li{font-size:12px;margin-bottom:6px}
    #nz-calc .nz-notes-dot{width:5px;height:5px}
    #nz-calc .nz-trust-badges{margin-bottom:12px;gap:8px}
    #nz-calc .nz-trust-badge{font-size:12px;padding:6px 12px}
    #nz-calc .nz-trust-badge svg{width:14px;height:14px}
    #nz-calc .nz-trust-stat-value{font-size:20px}
    #nz-calc .nz-trust-stat-label{font-size:12px}
    #nz-calc .nz-trust-stats{padding-top:12px;gap:24px}
    
    /* Gallery Desktop - Hidden until last step */
    #nz-calc .nz-gallery{display:none;width:100%;margin-top:16px;padding:20px;border-radius:14px}
    #nz-calc .nz-gallery.visible{display:block}
    #nz-calc .nz-gallery-title{font-size:16px;margin-bottom:16px}
    #nz-calc .nz-compare{height:280px}
    #nz-calc .nz-gallery-caption{font-size:14px;margin-top:12px}
}