/* PDF Watermark | Prefix: pwm- | Primary: #3399cc | Light default / Dark mode */
:root {
    --pwm-primary:#3399cc; --pwm-primary-light:rgba(51,153,204,0.1); --pwm-primary-dark:#2277aa;
    --pwm-success:#339966; --pwm-warning:#f59e0b; --pwm-warning-light:rgba(245,158,11,0.12);
    --pwm-danger-light:rgba(230,78,78,0.1); --pwm-danger:#e64e4e;
    --pwm-bg:#f0f7fc; --pwm-bg-elevated:#ffffff; --pwm-bg-secondary:#f1f5f9; --pwm-bg-tertiary:#e2e8f0;
    --pwm-text:#1e293b; --pwm-text-sec:#475569; --pwm-text-muted:#64748b;
    --pwm-border:#d1d5db;
    --pwm-shadow-sm:0 1px 3px rgba(0,0,0,0.08); --pwm-shadow-md:0 4px 12px rgba(0,0,0,0.1);
    --pwm-shadow-lg:0 10px 24px rgba(0,0,0,0.12);
    --pwm-shadow-prim:0 4px 14px rgba(51,153,204,0.3); --pwm-shadow-prim-hv:0 6px 20px rgba(51,153,204,0.4);
    --pwm-radius-sm:6px; --pwm-radius-md:12px; --pwm-radius-lg:16px; --pwm-radius-xl:24px; --pwm-radius-full:9999px;
    --pwm-transition:0.25s;
}
[data-theme="dark"] {
    --pwm-primary:#5bb8e8; --pwm-primary-light:rgba(91,184,232,0.15); --pwm-primary-dark:#3399cc;
    --pwm-success:#4ade80; --pwm-warning:#fbbf24; --pwm-warning-light:rgba(251,191,36,0.15);
    --pwm-danger-light:rgba(248,113,113,0.15); --pwm-danger:#f87171;
    --pwm-bg:#0a1520; --pwm-bg-elevated:#1e293b; --pwm-bg-secondary:#334155; --pwm-bg-tertiary:#475569;
    --pwm-text:#f1f5f9; --pwm-text-sec:#cbd5e1; --pwm-text-muted:#94a3b8; --pwm-border:#334155;
    --pwm-shadow-sm:0 1px 3px rgba(0,0,0,0.3); --pwm-shadow-md:0 4px 12px rgba(0,0,0,0.4); --pwm-shadow-lg:0 10px 24px rgba(0,0,0,0.5);
    --pwm-shadow-prim:0 4px 14px rgba(91,184,232,0.2); --pwm-shadow-prim-hv:0 6px 20px rgba(91,184,232,0.3);
}
*{box-sizing:border-box;}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:var(--pwm-bg);color:var(--pwm-text);line-height:1.6;margin:0;padding:0;transition:background-color var(--pwm-transition),color var(--pwm-transition);}
.pwm-container{max-width:1000px;margin:0 auto;padding:2rem;}
.pwm-header{text-align:center;margin-bottom:1.5rem;}
.pwm-title-row{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:1rem;}
.pwm-icon-wrapper{width:64px;height:64px;background:var(--pwm-primary);border-radius:var(--pwm-radius-lg);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:var(--pwm-shadow-prim);flex-shrink:0;}
.pwm-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;margin:0;color:var(--pwm-primary);letter-spacing:-0.02em;}
.pwm-description{font-size:1.05rem;color:var(--pwm-text-sec);max-width:800px;margin:0 auto;line-height:1.75;}
.pwm-description a{color:var(--pwm-primary);text-decoration:none;font-weight:500;}
.pwm-description a:hover{text-decoration:underline;}

/* Tabs */
.pwm-tabs{display:flex;gap:0;margin-bottom:0;border-radius:var(--pwm-radius-lg) var(--pwm-radius-lg) 0 0;overflow:hidden;border:1px solid var(--pwm-border);border-bottom:none;background:var(--pwm-bg-secondary);}
.pwm-container .pwm-tab{flex:1;padding:0.875rem 1.25rem;border:none!important;background:var(--pwm-bg-secondary)!important;color:var(--pwm-text-muted)!important;font-size:0.95rem;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:0.5rem;transition:all 0.2s;box-shadow:none!important;transform:none!important;}
.pwm-container .pwm-tab:hover{background:var(--pwm-bg-tertiary)!important;color:var(--pwm-text)!important;transform:none!important;}
.pwm-container .pwm-tab.active{background:var(--pwm-bg-elevated)!important;color:var(--pwm-primary)!important;}
.pwm-tab svg{width:18px;height:18px;}

/* Main card */
.pwm-main{background:var(--pwm-bg-elevated);border-radius:0 0 var(--pwm-radius-xl) var(--pwm-radius-xl);box-shadow:var(--pwm-shadow-lg);border:1px solid var(--pwm-border);border-top:none;margin-bottom:2rem;overflow:visible;transition:background-color var(--pwm-transition),border-color var(--pwm-transition);}

/* Upload */
.pwm-upload-section{padding:2.5rem;}
.pwm-upload-area{border:2px dashed var(--pwm-border);border-radius:var(--pwm-radius-lg);padding:3.5rem 2rem;text-align:center;cursor:pointer;transition:all 0.3s;background:var(--pwm-bg-secondary);position:relative;overflow:hidden;}
.pwm-upload-area::before{content:'';position:absolute;inset:0;background:var(--pwm-primary-light);opacity:0;transition:opacity 0.3s;}
.pwm-upload-area:hover,.pwm-upload-area.dragover{border-color:var(--pwm-primary);transform:translateY(-2px);box-shadow:var(--pwm-shadow-md);}
.pwm-upload-area:hover::before,.pwm-upload-area.dragover::before{opacity:1;}
.pwm-upload-content{position:relative;z-index:1;}
.pwm-upload-icon{color:var(--pwm-primary);margin-bottom:1.25rem;transition:transform 0.3s;}
.pwm-upload-area:hover .pwm-upload-icon{transform:translateY(-6px);}
.pwm-upload-title{font-size:1.4rem;font-weight:700;color:var(--pwm-text);margin:0 0 0.5rem;}
.pwm-upload-subtitle{color:var(--pwm-text-muted);margin:0 0 1rem;}
.pwm-badges{display:flex;gap:0.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:1rem;}
.pwm-badge{background:var(--pwm-primary-light);color:var(--pwm-primary);padding:0.35rem 0.85rem;border-radius:var(--pwm-radius-full);font-size:0.8rem;font-weight:600;}
.pwm-upload-hint{display:inline-flex;align-items:center;gap:0.5rem;color:var(--pwm-text-muted);font-size:0.875rem;}

/* File header */
.pwm-file-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:0.75rem;padding:1rem 1.5rem;background:var(--pwm-bg-secondary);border-bottom:1px solid var(--pwm-border);}
.pwm-file-info{display:flex;align-items:center;gap:0.5rem;font-size:0.875rem;font-weight:600;color:var(--pwm-text);}
.pwm-file-info svg{color:var(--pwm-primary);flex-shrink:0;}
.pwm-filename{max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pwm-container .pwm-link-btn{background:none!important;border:none!important;color:var(--pwm-primary)!important;font-size:0.82rem;font-weight:600;cursor:pointer;padding:0.35rem 0.6rem;border-radius:var(--pwm-radius-sm);display:flex;align-items:center;gap:0.3rem;box-shadow:none!important;transform:none!important;}
.pwm-container .pwm-link-btn:hover{background:var(--pwm-primary-light)!important;transform:none!important;}

/* Settings */
.pwm-settings{padding:1.5rem 2rem;}
.pwm-settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;}
.pwm-field{display:flex;flex-direction:column;gap:0.5rem;}
.pwm-label{display:flex;align-items:center;gap:0.5rem;font-size:0.82rem;font-weight:700;color:var(--pwm-text-muted);text-transform:uppercase;letter-spacing:0.04em;}
.pwm-label svg{color:var(--pwm-primary);width:15px;height:15px;}
.pwm-input-text{padding:0.75rem 1rem;border:2px solid var(--pwm-border);border-radius:var(--pwm-radius-md);background:var(--pwm-bg-elevated);color:var(--pwm-text);font-size:1rem;font-weight:600;transition:border-color 0.2s;}
.pwm-input-text:focus{outline:none;border-color:var(--pwm-primary);box-shadow:0 0 0 3px var(--pwm-primary-light);}
.pwm-container input[type="text"].pwm-input-text{background:var(--pwm-bg-elevated)!important;border:2px solid var(--pwm-border)!important;}
.pwm-container input[type="text"].pwm-input-text:focus{border-color:var(--pwm-primary)!important;box-shadow:0 0 0 3px var(--pwm-primary-light)!important;}

/* Preview */
.pwm-preview-wrap{text-align:center;margin-bottom:1.25rem;}
.pwm-preview-page{width:120px;height:170px;background:#fff;border:1px solid var(--pwm-border);border-radius:4px;margin:0 auto 0.5rem;position:relative;overflow:hidden;box-shadow:var(--pwm-shadow-sm);display:flex;flex-direction:column;justify-content:center;padding:12px;}
[data-theme="dark"] .pwm-preview-page{background:#e8edf5;}
.pwm-preview-lines{display:flex;flex-direction:column;gap:6px;opacity:0.3;}
.pwm-pl{height:3px;background:#334155;border-radius:2px;}
.pwm-pl-short{width:60%;}
.pwm-preview-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-weight:900;text-align:center;pointer-events:none;transition:all 0.2s;word-break:break-all;padding:8px;}
.pwm-preview-label{font-size:0.75rem;color:var(--pwm-text-muted);margin:0;}

/* Slider */
.pwm-slider{width:100%;height:6px;-webkit-appearance:none;appearance:none;border-radius:var(--pwm-radius-full);cursor:pointer;background:linear-gradient(to right,var(--pwm-primary-light),var(--pwm-primary));}
.pwm-slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:var(--pwm-bg-elevated);border:3px solid var(--pwm-primary);cursor:pointer;box-shadow:var(--pwm-shadow-sm);}
.pwm-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--pwm-bg-elevated);border:3px solid var(--pwm-primary);cursor:pointer;}
.pwm-slider-labels{display:flex;justify-content:space-between;font-size:0.72rem;color:var(--pwm-text-muted);}

/* Color buttons */
.pwm-color-row{display:flex;gap:0.5rem;flex-wrap:wrap;}
.pwm-container .pwm-color-btn{width:30px;height:30px;border-radius:50%!important;background:var(--c)!important;border:3px solid transparent!important;cursor:pointer;transition:all 0.2s;box-shadow:none!important;transform:none!important;}
.pwm-container .pwm-color-btn.active,.pwm-container .pwm-color-btn:hover{border-color:var(--pwm-primary)!important;transform:scale(1.15)!important;}

/* Position / pages toggle */
.pwm-pos-toggle{display:flex;flex-wrap:wrap;gap:0.4rem;}
.pwm-container .pwm-pos-btn,.pwm-container .pwm-pages-btn{padding:0.4rem 0.8rem;border:2px solid var(--pwm-border)!important;border-radius:var(--pwm-radius-full)!important;background:var(--pwm-bg-elevated)!important;color:var(--pwm-text)!important;font-size:0.78rem;font-weight:600;cursor:pointer;transition:all 0.2s;box-shadow:none!important;transform:none!important;}
.pwm-container .pwm-pos-btn:hover,.pwm-container .pwm-pages-btn:hover{border-color:var(--pwm-primary)!important;color:var(--pwm-primary)!important;transform:none!important;}
.pwm-container .pwm-pos-btn.active,.pwm-container .pwm-pages-btn.active{border-color:var(--pwm-primary)!important;background:var(--pwm-primary-light)!important;color:var(--pwm-primary)!important;}

/* Remove info */
.pwm-remove-info{display:flex;gap:1rem;padding:1.25rem;background:var(--pwm-bg-secondary);border-radius:var(--pwm-radius-md);}
.pwm-remove-icon{color:var(--pwm-primary);flex-shrink:0;margin-top:2px;}
.pwm-remove-info p{margin:0 0 0.75rem;font-size:0.9rem;color:var(--pwm-text-sec);line-height:1.6;}
.pwm-remove-info p:last-child{margin-bottom:0;}
.pwm-remove-info strong{color:var(--pwm-text);}

/* Action bar */
.pwm-action-bar{display:flex;justify-content:flex-end;gap:1rem;padding:1.5rem 2rem;border-top:1px solid var(--pwm-border);background:var(--pwm-bg-secondary);}

/* Button resets */
.pwm-container button,.pwm-container a.pwm-btn{background-color:transparent;color:inherit;box-shadow:none;transform:none;}
.pwm-container button:hover,.pwm-container a.pwm-btn:hover{background-color:transparent;box-shadow:none;transform:none;}
.pwm-container .pwm-btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.875rem 1.75rem;border-radius:var(--pwm-radius-full);font-size:1rem;font-weight:600;cursor:pointer;transition:all 0.2s;text-decoration:none;border:none;}
.pwm-container .pwm-btn-primary{background:var(--pwm-primary)!important;color:#fff!important;box-shadow:var(--pwm-shadow-prim)!important;}
.pwm-container .pwm-btn-primary:hover{background:var(--pwm-primary-dark)!important;transform:translateY(-2px)!important;box-shadow:var(--pwm-shadow-prim-hv)!important;}
.pwm-container .pwm-btn-secondary{background:var(--pwm-bg-elevated)!important;color:var(--pwm-text)!important;border:1px solid var(--pwm-border)!important;box-shadow:none!important;}
.pwm-container .pwm-btn-secondary:hover{background:var(--pwm-bg-secondary)!important;transform:none!important;box-shadow:none!important;}

/* Spinner */
.pwm-processing-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.55);display:flex;align-items:center;justify-content:center;z-index:9000;backdrop-filter:blur(2px);}
.pwm-processing-card{background:var(--pwm-bg-elevated);border-radius:var(--pwm-radius-xl);padding:2rem 2.5rem;text-align:center;box-shadow:0 25px 60px rgba(0,0,0,0.35);min-width:300px;max-width:380px;width:90%;border:1px solid var(--pwm-border);}
.pwm-progress-stages{display:flex;align-items:center;justify-content:center;margin-bottom:1.75rem;}
.pwm-stage-dot{display:flex;flex-direction:column;align-items:center;gap:0.3rem;color:var(--pwm-text-muted);transition:color 0.3s;}
.pwm-stage-icon{width:20px;height:20px;padding:7px;background:var(--pwm-bg-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all 0.3s;box-sizing:content-box;}
.pwm-stage-icon svg{width:14px;height:14px;display:block;}
.pwm-stage-dot span{font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.04em;}
.pwm-stage-dot.active .pwm-stage-icon{background:var(--pwm-primary);color:#fff;} .pwm-stage-dot.active{color:var(--pwm-primary);}
.pwm-stage-dot.done .pwm-stage-icon{background:var(--pwm-success);color:#fff;} .pwm-stage-dot.done{color:var(--pwm-success);}
.pwm-stage-connector{width:28px;height:2px;background:var(--pwm-border);margin:0 0.25rem 1.1rem;flex-shrink:0;}
.pwm-css-spinner{width:44px;height:44px;border:4px solid var(--pwm-border);border-top-color:var(--pwm-primary);border-radius:50%;animation:pwm-spin 0.8s linear infinite;margin:0 auto 1.25rem;}
.pwm-progress-bar-wrap{height:6px;background:var(--pwm-border);border-radius:var(--pwm-radius-full);overflow:hidden;margin-bottom:0.875rem;}
.pwm-progress-bar-fill{height:100%;background:var(--pwm-primary);width:0%;transition:width 0.4s ease;border-radius:var(--pwm-radius-full);}
.pwm-processing-status{font-size:0.9rem;font-weight:500;color:var(--pwm-text);margin:0 0 0.25rem;} .pwm-progress-pct{font-size:0.82rem;color:var(--pwm-text-muted);margin:0;}

/* Results */
.pwm-results-section{padding:2.5rem;text-align:center;animation:pwm-fadeIn 0.4s ease;}
.pwm-results-header{margin-bottom:1.75rem;}
.pwm-success-icon{width:72px;height:72px;background:var(--pwm-success);border-radius:var(--pwm-radius-full);display:flex;align-items:center;justify-content:center;margin:0 auto 1.25rem;color:#fff;}
.pwm-success-icon svg{width:36px;height:36px;}
.pwm-results-header h2{font-size:1.75rem;color:var(--pwm-text);margin:0 0 0.5rem;} .pwm-results-header p{color:var(--pwm-text-muted);margin:0;}
.pwm-results-actions{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;}

/* Error */
.pwm-error{display:flex;align-items:flex-start;gap:0.75rem;background:var(--pwm-danger-light);border:1px solid var(--pwm-danger);padding:1rem 1.25rem;border-radius:var(--pwm-radius-md);margin:1.25rem;}
.pwm-error svg{color:var(--pwm-danger);flex-shrink:0;margin-top:2px;}
.pwm-error-title{font-weight:600;color:var(--pwm-danger);margin:0 0 0.25rem;font-size:0.95rem;}
.pwm-error-detail{color:var(--pwm-danger);margin:0 0 0.5rem;font-size:0.875rem;opacity:0.9;}
.pwm-error-contact{font-size:0.82rem;color:var(--pwm-text-sec);margin:0;}
.pwm-error-contact a{color:var(--pwm-primary);font-weight:600;text-decoration:none;}

/* Related */
.pwm-related-tools{display:flex;align-items:center;flex-wrap:wrap;gap:1rem;padding:1.25rem 1.5rem;background:var(--pwm-bg-elevated);border-radius:var(--pwm-radius-lg);margin-bottom:2rem;border:1px solid var(--pwm-border);}
.pwm-related-label{display:flex;align-items:center;gap:0.5rem;font-weight:600;color:var(--pwm-text);font-size:0.875rem;}
.pwm-related-label svg{color:var(--pwm-primary);width:16px;height:16px;}
.pwm-related-links{display:flex;flex-wrap:wrap;gap:0.5rem;}
.pwm-related-link{display:inline-flex;align-items:center;gap:0.4rem;padding:0.5rem 1rem;background:var(--pwm-bg-secondary);border-radius:var(--pwm-radius-full);color:var(--pwm-text-sec);text-decoration:none;font-size:0.875rem;font-weight:500;transition:all 0.2s;border:1px solid var(--pwm-border);}
.pwm-related-link:hover{background:var(--pwm-primary);color:#fff;border-color:var(--pwm-primary);transform:translateY(-2px);}
.pwm-related-link svg{width:16px;height:16px;}

/* Info cards */
.pwm-info-sections{display:flex;flex-direction:column;gap:1.5rem;}
.pwm-info-card{background:var(--pwm-bg-elevated);border-radius:var(--pwm-radius-xl);padding:2rem;border:1px solid var(--pwm-border);transition:background-color var(--pwm-transition),border-color var(--pwm-transition);}
.pwm-info-card h2{display:flex;align-items:center;gap:0.75rem;font-size:1.25rem;color:var(--pwm-text);margin:0 0 1.5rem;}
.pwm-info-card h2 svg{color:var(--pwm-primary);width:22px;height:22px;flex-shrink:0;}
.pwm-benefits-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;}
.pwm-benefit-item{display:flex;gap:1rem;align-items:flex-start;}
.pwm-benefit-icon{width:44px;height:44px;background:var(--pwm-primary-light);border-radius:var(--pwm-radius-md);display:flex;align-items:center;justify-content:center;color:var(--pwm-primary);flex-shrink:0;}
.pwm-benefit-item h4{margin:0 0 0.25rem;font-size:0.95rem;color:var(--pwm-text);}
.pwm-benefit-item p{margin:0;font-size:0.875rem;color:var(--pwm-text-sec);line-height:1.5;}
.pwm-faq-list{display:flex;flex-direction:column;gap:0.75rem;}
.faq-item{border:1px solid var(--pwm-border);border-radius:var(--pwm-radius-md);overflow:hidden;}
.faq-item:hover{border-color:var(--pwm-primary);}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;background:var(--pwm-bg-secondary);border:none;cursor:pointer;font-size:0.975rem;font-weight:500;color:var(--pwm-text);text-align:left;gap:12px;transition:background 0.2s;}
.faq-question span{flex:1;} .faq-question svg{flex-shrink:0;color:var(--pwm-primary);width:20px;height:20px;transition:transform 0.3s;}
.faq-item.open .faq-question svg{transform:rotate(180deg);} .faq-item.open .faq-question{background:var(--pwm-bg-elevated);border-bottom:1px solid var(--pwm-border);}
.faq-answer{display:none;padding:1rem 1.25rem;background:var(--pwm-bg-elevated);} .faq-item.open .faq-answer{display:block;}
.faq-answer p{margin:0;color:var(--pwm-text-sec);line-height:1.7;font-size:0.95rem;}

@keyframes pwm-spin{to{transform:rotate(360deg);}} @keyframes pwm-fadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
@media(max-width:768px){.pwm-container{padding:1rem;} .pwm-upload-section{padding:1.5rem;} .pwm-settings{padding:1.25rem;} .pwm-settings-grid{grid-template-columns:1fr;} .pwm-action-bar{flex-direction:column;padding:1.25rem;} .pwm-btn{width:100%;} .pwm-results-actions{flex-direction:column;} .pwm-results-actions .pwm-btn{width:100%;} .pwm-related-tools{flex-direction:column;align-items:flex-start;} .pwm-info-card{padding:1.5rem;} .pwm-benefits-grid{grid-template-columns:1fr;}}
@media(max-width:480px){.pwm-title-row{flex-direction:column;}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important;}}