:root{--font-family-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;--font-family-display: "Outfit", "Inter", system-ui, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3.25rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: .5rem;--radius-md: .875rem;--radius-lg: 1.25rem;--radius-xl: 1.75rem;--radius-full: 9999px;--brand-primary: #6366f1;--brand-primary-hover: #4f46e5;--brand-secondary: #06b6d4;--brand-accent: #8b5cf6;--gradient-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);--gradient-hover: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #0891b2 100%);--gradient-card: linear-gradient(135deg, rgba(255, 255, 255, .05) 0%, rgba(255, 255, 255, .01) 100%);--gradient-badge: linear-gradient(135deg, rgba(99, 102, 241, .12) 0%, rgba(6, 182, 212, .12) 100%);--gradient-hero-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, .18) 0%, rgba(6, 182, 212, .05) 50%, transparent 80%);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .35s cubic-bezier(.16, 1, .3, 1);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 8px 24px -4px rgba(0, 0, 0, .08);--shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, .16);--shadow-glow: 0 0 35px rgba(99, 102, 241, .3);--shadow-glow-btn: 0 8px 30px rgba(99, 102, 241, .45)}:root,[data-theme=dark]{--bg-main: #07090e;--bg-surface: rgba(15, 22, 36, .75);--bg-surface-solid: #0f1624;--bg-surface-elevated: #182236;--bg-glass: rgba(15, 22, 36, .85);--bg-glass-hover: rgba(24, 34, 54, .95);--border-color: rgba(255, 255, 255, .08);--border-color-hover: rgba(99, 102, 241, .45);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--input-bg: #111827;--input-border: #1f2937;--input-text: #f8fafc;--ad-slot-bg: transparent;--ad-slot-border: transparent;--dropzone-bg: rgba(99, 102, 241, .03);--dropzone-border: rgba(99, 102, 241, .25);--dropzone-hover-bg: rgba(99, 102, 241, .07);--chip-bg: rgba(255, 255, 255, .05);--chip-text: #cbd5e1;color-scheme:dark}[data-theme=light]{--bg-main: #f8fafc;--bg-surface: rgba(255, 255, 255, .85);--bg-surface-solid: #ffffff;--bg-surface-elevated: #f1f5f9;--bg-glass: rgba(255, 255, 255, .9);--bg-glass-hover: rgba(241, 245, 249, .95);--border-color: #e2e8f0;--border-color-hover: rgba(99, 102, 241, .45);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--input-bg: #ffffff;--input-border: #cbd5e1;--input-text: #0f172a;--ad-slot-bg: transparent;--ad-slot-border: transparent;--dropzone-bg: rgba(99, 102, 241, .02);--dropzone-border: rgba(99, 102, 241, .2);--dropzone-hover-bg: rgba(99, 102, 241, .05);--chip-bg: #f1f5f9;--chip-text: #334155;color-scheme:light}body{background-color:var(--bg-main);background-image:var(--gradient-hero-glow);background-repeat:no-repeat;color:var(--text-primary);font-family:var(--font-family-sans);line-height:1.6;transition:background-color var(--transition-base),color var(--transition-base);margin:0;padding:0;overflow-x:hidden;-webkit-font-smoothing:antialiased}.app-container{max-width:1200px;margin:0 auto;padding:0 var(--space-5)}.site-header{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background-color:var(--bg-glass);border-bottom:1px solid var(--border-color);transition:background-color var(--transition-base),border-color var(--transition-base)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:4.75rem}.brand-link{display:flex;align-items:center;gap:var(--space-3);text-decoration:none}.brand-logo-icon{width:2.35rem;height:2.35rem;border-radius:var(--radius-md);background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-family:var(--font-family-display);font-size:var(--font-size-md);box-shadow:var(--shadow-sm)}.brand-text-wrapper{display:flex;flex-direction:column}.brand-title{font-family:var(--font-family-display);font-size:1.15rem;font-weight:800;background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.02em;margin:0;line-height:1.2}.brand-subtitle{font-size:.72rem;font-weight:500;color:var(--text-muted);letter-spacing:.02em;text-transform:none}.main-nav{display:flex;align-items:center;gap:var(--space-8)}.nav-link{color:var(--text-secondary);text-decoration:none;font-size:var(--font-size-sm);font-weight:500;transition:color var(--transition-fast);padding:var(--space-2) 0;position:relative}.nav-link:hover,.nav-link.active{color:var(--text-primary)}.nav-link.active:after{content:"";position:absolute;bottom:-4px;left:0;right:0;height:2px;background:var(--gradient-brand);border-radius:var(--radius-full)}.header-actions{display:flex;align-items:center;gap:var(--space-3)}.theme-toggle-btn{background:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-primary);width:2.5rem;height:2.5rem;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast);font-size:1.1rem}.theme-toggle-btn:hover{border-color:var(--brand-primary);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.mobile-nav-toggle{display:none;background:transparent;border:none;color:var(--text-primary);font-size:var(--font-size-xl);cursor:pointer;padding:var(--space-2)}.ad-slot-container{width:100%;display:flex;justify-content:center;align-items:center}.ad-slot-top{min-height:0;max-width:728px;width:100%;background:transparent;border:none;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;overflow:hidden;transition:min-height var(--transition-base)}.ad-slot-bottom-sticky{position:fixed;bottom:0;left:0;right:0;z-index:90;background-color:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border-color);display:none;align-items:center;justify-content:center;padding:var(--space-2)}.ad-slot-bottom-inner{max-width:728px;width:100%;height:50px;display:flex;align-items:center;justify-content:center;position:relative}.ad-close-btn{position:absolute;right:var(--space-2);top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:var(--font-size-sm);padding:var(--space-1)}.main-content{padding:var(--space-8) 0 var(--space-16);min-height:calc(100vh - 12rem)}.features-grid-section{margin-top:var(--space-16)}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6)}.feature-card{background:var(--bg-surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-6);transition:all var(--transition-smooth);display:flex;flex-direction:column;gap:var(--space-2.5)}.feature-card:hover{transform:translateY(-4px);border-color:var(--border-color-hover);box-shadow:var(--shadow-md),var(--shadow-glow)}.feature-icon-title{display:flex;align-items:center;gap:var(--space-2.5)}.feature-emoji{font-size:1.35rem}.feature-card-title{font-family:var(--font-family-display);font-size:1.05rem;font-weight:700;color:var(--text-primary);margin:0}.feature-card-desc{font-size:var(--font-size-sm);color:var(--text-secondary);margin:0;line-height:1.5}.site-footer{background-color:var(--bg-surface-solid);border-top:1px solid var(--border-color);padding:var(--space-12) 0 var(--space-8);margin-top:var(--space-16)}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:var(--space-10);margin-bottom:var(--space-10)}.footer-brand-info p{color:var(--text-secondary);font-size:var(--font-size-sm);margin-top:var(--space-3);max-width:320px}.footer-heading{font-size:.8rem;font-weight:700;color:var(--text-primary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-4)}.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--space-3)}.footer-link{color:var(--text-secondary);text-decoration:none;font-size:var(--font-size-sm);transition:color var(--transition-fast)}.footer-link:hover{color:var(--brand-primary)}.footer-link-muted{color:var(--text-muted);font-size:var(--font-size-sm);font-style:italic}.footer-bottom{border-top:1px solid var(--border-color);padding-top:var(--space-6);display:flex;align-items:center;justify-content:space-between;font-size:var(--font-size-xs);color:var(--text-muted)}.privacy-badge{display:inline-flex;align-items:center;gap:var(--space-2);background:var(--gradient-badge);border:1px solid var(--border-color);padding:.35rem .85rem;border-radius:var(--radius-full);color:var(--brand-primary);font-weight:600}@media (max-width: 1024px){.features-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.main-nav{display:none}.mobile-nav-toggle{display:block}.features-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:var(--space-6)}.footer-bottom{flex-direction:column;gap:var(--space-3);text-align:center}}.card{background-color:var(--bg-surface);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-md);transition:all var(--transition-smooth)}.card:hover{border-color:var(--border-color-hover);box-shadow:var(--shadow-lg)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--border-color)}.card-title{font-family:var(--font-family-display);font-size:1.15rem;font-weight:700;color:var(--text-primary);margin:0;display:flex;align-items:center;gap:var(--space-2.5)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2.5);padding:.85rem 1.75rem;font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:600;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-base);text-decoration:none;line-height:1.25}.btn:focus-visible{outline:2px solid var(--brand-primary);outline-offset:2px}.btn-primary{background:var(--gradient-brand);color:#fff;box-shadow:var(--shadow-glow-btn)}.btn-primary:hover{background:var(--gradient-hover);transform:translateY(-2px) scale(1.01);box-shadow:0 12px 35px #6366f18c}.btn-primary:active{transform:translateY(0) scale(1)}.btn-xl{padding:1.15rem 2.75rem;font-size:var(--font-size-md);font-weight:700;border-radius:var(--radius-lg);letter-spacing:.01em}.btn-secondary{background-color:var(--bg-surface-elevated);border:1px solid var(--border-color);color:var(--text-primary)}.btn-secondary:hover{background-color:var(--bg-glass-hover);border-color:var(--brand-primary);color:var(--brand-primary);transform:translateY(-1px)}.btn-outline{background:transparent;border:1px solid var(--brand-primary);color:var(--brand-primary)}.btn-outline:hover{background:var(--gradient-badge)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--font-size-xs);font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em}.input-wrapper{position:relative;display:flex;align-items:center}.input-field{width:100%;padding:.85rem 1rem;background-color:var(--input-bg);border:1px solid var(--input-border);border-radius:var(--radius-md);color:var(--input-text);font-family:var(--font-family-sans);font-size:var(--font-size-sm);font-weight:500;transition:all var(--transition-fast);box-sizing:border-box}.input-field:focus{outline:none;border-color:var(--brand-primary);box-shadow:0 0 0 3px #6366f140}.input-field::-webkit-outer-spin-button,.input-field::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.input-field[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}.input-suffix{position:absolute;right:.875rem;color:var(--text-muted);font-size:var(--font-size-xs);font-weight:600;pointer-events:none}.segmented-control{display:flex;background-color:var(--bg-surface-elevated);padding:.3rem;border-radius:var(--radius-lg);border:1px solid var(--border-color);gap:.25rem}.segmented-btn{flex:1;padding:.55rem var(--space-4);background:transparent;border:none;border-radius:var(--radius-md);color:var(--text-secondary);font-size:var(--font-size-xs);font-weight:600;cursor:pointer;transition:all var(--transition-fast);text-align:center}.segmented-btn.active{background:var(--gradient-brand);color:#fff;box-shadow:var(--shadow-sm)}.segmented-btn:hover:not(.active){color:var(--text-primary);background:var(--bg-glass-hover)}.slider-group{display:flex;flex-direction:column;gap:var(--space-2)}.slider-header{display:flex;align-items:center;justify-content:space-between}.slider-value-badge{font-size:var(--font-size-xs);font-weight:700;color:var(--brand-primary);background:var(--gradient-badge);padding:.2rem .65rem;border-radius:var(--radius-full)}.range-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:8px;border-radius:var(--radius-full);background:var(--bg-surface-elevated);outline:none;transition:background var(--transition-fast)}.range-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:22px;height:22px;border-radius:50%;background:var(--gradient-brand);cursor:pointer;box-shadow:0 2px 10px #6366f180;transition:transform var(--transition-fast)}.range-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.badge{display:inline-flex;align-items:center;gap:var(--space-1.5);padding:.3rem .75rem;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600}.badge-success{background:#10b9811f;color:#10b981;border:1px solid rgba(16,185,129,.25)}.badge-info{background:#6366f11f;color:#6366f1;border:1px solid rgba(99,102,241,.25)}.badge-neutral{background:var(--chip-bg);color:var(--chip-text);border:1px solid var(--border-color)}.tool-hero{text-align:center;max-width:840px;margin:0 auto var(--space-8) auto}.breadcrumb-nav{display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-size:var(--font-size-xs);color:var(--text-muted);margin-bottom:var(--space-4)}.breadcrumb-link{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-fast)}.breadcrumb-link:hover{color:var(--brand-primary)}.breadcrumb-separator{color:var(--text-muted);opacity:.6}.tool-badge-pill{display:inline-flex;align-items:center;gap:var(--space-2);padding:.4rem 1rem;border-radius:var(--radius-full);background:var(--gradient-badge);border:1px solid rgba(99,102,241,.25);color:var(--brand-primary);font-size:var(--font-size-xs);font-weight:700;letter-spacing:.04em;margin-bottom:var(--space-4);box-shadow:0 4px 15px #6366f11a}.hero-title{font-family:var(--font-family-display);font-size:clamp(2.25rem,5.5vw,3.5rem);font-weight:800;color:var(--text-primary);line-height:1.15;margin:0 0 var(--space-3) 0;letter-spacing:-.03em}.hero-title .gradient-text{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:var(--font-size-xl);font-weight:600;color:var(--text-primary);line-height:1.5;margin:0 auto var(--space-2) auto;max-width:720px}.hero-subdesc{font-size:var(--font-size-md);color:var(--text-secondary);margin:0 auto;max-width:680px;line-height:1.6}.dropzone-container{background:var(--dropzone-bg);border:2px dashed var(--dropzone-border);border-radius:var(--radius-xl);padding:var(--space-12) var(--space-8);text-align:center;cursor:pointer;transition:all var(--transition-smooth);position:relative;overflow:hidden}.dropzone-container:hover,.dropzone-container.drag-over{background:var(--dropzone-hover-bg);border-color:var(--brand-primary);transform:translateY(-3px);box-shadow:var(--shadow-glow)}.dropzone-illustration{width:5rem;height:5rem;border-radius:var(--radius-full);background:var(--gradient-badge);border:1px solid rgba(99,102,241,.3);color:var(--brand-primary);display:flex;align-items:center;justify-content:center;margin:0 auto var(--space-5);font-size:2.25rem;transition:all var(--transition-smooth);box-shadow:0 8px 25px #6366f126}.dropzone-container:hover .dropzone-illustration{transform:scale(1.12) rotate(-4deg);box-shadow:0 12px 30px #6366f14d}.dropzone-title{font-family:var(--font-family-display);font-size:var(--font-size-2xl);font-weight:700;color:var(--text-primary);margin:0 0 var(--space-2) 0}.dropzone-desc{font-size:var(--font-size-sm);color:var(--text-secondary);margin-bottom:var(--space-6)}.file-input-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0;opacity:0;pointer-events:none}.upload-guarantee-list{display:flex;align-items:center;justify-content:center;gap:var(--space-6);margin-top:var(--space-6);flex-wrap:wrap}.guarantee-item{display:inline-flex;align-items:center;gap:var(--space-2);font-size:var(--font-size-xs);font-weight:600;color:var(--text-secondary)}.guarantee-item .check-icon{color:#10b981;font-weight:800;font-size:var(--font-size-sm)}.format-tags{display:flex;align-items:center;justify-content:center;gap:var(--space-2);margin-top:var(--space-5);flex-wrap:wrap}.preset-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2.5);margin-bottom:var(--space-4)}.preset-btn{padding:.65rem var(--space-2);background:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);font-size:var(--font-size-xs);font-weight:700;cursor:pointer;transition:all var(--transition-fast);text-align:center}.preset-btn:hover{border-color:var(--brand-primary);color:var(--text-primary);background:var(--bg-glass-hover)}.preset-btn.active{background:var(--gradient-brand);border-color:transparent;color:#fff;box-shadow:var(--shadow-sm)}.optional-dimensions-card{background:var(--bg-surface-elevated);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:var(--space-4);margin-top:var(--space-4)}.optional-dim-header{display:flex;align-items:center;justify-content:space-between;cursor:pointer;-webkit-user-select:none;user-select:none}.optional-dim-title{font-size:var(--font-size-xs);font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;display:flex;align-items:center;gap:var(--space-2)}.checkbox-toggle{display:flex;align-items:center;gap:var(--space-2);cursor:pointer;font-size:var(--font-size-xs);color:var(--text-primary);font-weight:600}.checkbox-toggle input[type=checkbox]{width:1.1rem;height:1.1rem;accent-color:var(--brand-primary);cursor:pointer}.workspace-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-8);margin-top:var(--space-10)}.preview-card{display:flex;flex-direction:column;height:100%}.image-preview-wrapper{background-color:var(--bg-surface-elevated);border-radius:var(--radius-lg);border:1px solid var(--border-color);min-height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;margin-bottom:var(--space-4);background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:16px 16px}.image-preview-img{max-width:100%;max-height:320px;object-fit:contain;border-radius:var(--radius-md);box-shadow:var(--shadow-md)}.analysis-wrapper{display:flex;flex-direction:column;gap:var(--space-3);width:100%;box-sizing:border-box}.prominent-size-card{background:var(--gradient-badge);border:1px solid rgba(99,102,241,.25);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);display:flex;align-items:center;justify-content:space-between;box-sizing:border-box;margin:0;width:100%}.prominent-size-label{font-size:.68rem;text-transform:uppercase;font-weight:700;color:var(--text-muted);letter-spacing:.04em;margin:0 0 .2rem;padding:0;display:block}.prominent-size-value{font-family:var(--font-family-display);font-size:var(--font-size-2xl);font-weight:800;color:var(--text-primary);line-height:1.1;margin:0}.basic-info-grid,.analysis-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3);width:100%;box-sizing:border-box}.analysis-item{background:var(--bg-surface-elevated);border:1px solid var(--border-color);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);display:flex;flex-direction:column;gap:.2rem;box-sizing:border-box}.analysis-item-label{font-size:.68rem;color:var(--text-muted);font-weight:600;display:flex;align-items:center;gap:.35rem;margin:0;padding:0}.analysis-item-value{font-size:var(--font-size-sm);font-weight:700;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.advanced-card{background:var(--bg-surface-solid);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4)}.advanced-toggle-btn{width:100%;background:transparent;border:none;padding:var(--space-1) 0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;color:var(--text-secondary);font-family:var(--font-family-sans);font-size:var(--font-size-xs);font-weight:700;text-transform:uppercase;letter-spacing:.04em}.advanced-toggle-btn:hover{color:var(--text-primary)}.advanced-chevron{font-size:.8rem;color:var(--brand-primary);transition:transform .35s cubic-bezier(.16,1,.3,1)}.analysis-warning-chip{display:flex;align-items:center;gap:var(--space-2);padding:.5rem .75rem;border-radius:var(--radius-md);font-size:.75rem;font-weight:600}.analysis-warning-chip.danger{background:#ef44441f;color:#f87171;border:1px solid rgba(239,68,68,.3)}.analysis-warning-chip.warning{background:#f59e0b1f;color:#fbbf24;border:1px solid rgba(245,158,11,.3)}.analysis-warning-chip.info{background:#6366f11f;color:#818cf8;border:1px solid rgba(99,102,241,.3)}.result-section{margin-top:var(--space-10);animation:fadeIn var(--transition-smooth)}.result-banner{background:var(--gradient-badge);border:1px solid rgba(99,102,241,.25);border-radius:var(--radius-lg);padding:var(--space-5) var(--space-6);display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6)}.savings-chip{font-size:var(--font-size-sm);font-weight:800;color:#10b981;background:#10b98126;padding:.4rem 1rem;border-radius:var(--radius-full);border:1px solid rgba(16,185,129,.3)}.section-header{text-align:center;margin-bottom:var(--space-8)}.section-title{font-family:var(--font-family-display);font-size:clamp(1.75rem,4vw,2.25rem);font-weight:800;color:var(--text-primary);margin:0 0 var(--space-2) 0;letter-spacing:-.02em}.section-desc{font-size:var(--font-size-md);color:var(--text-secondary);max-width:640px;margin:0 auto}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6);margin-top:var(--space-8)}.step-card{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--space-6);position:relative;transition:all var(--transition-smooth)}.step-number{width:2.5rem;height:2.5rem;border-radius:var(--radius-full);background:var(--gradient-badge);border:1px solid rgba(99,102,241,.3);color:var(--brand-primary);font-family:var(--font-family-display);font-weight:800;font-size:var(--font-size-md);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-4)}.step-title{font-family:var(--font-family-display);font-size:var(--font-size-lg);font-weight:700;color:var(--text-primary);margin:0 0 var(--space-2) 0}.step-desc{font-size:var(--font-size-sm);color:var(--text-secondary);margin:0;line-height:1.5}.faq-section{margin-top:var(--space-16)}.faq-grid{display:flex;flex-direction:column;gap:var(--space-4);max-width:880px;margin:0 auto}.faq-item{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;transition:border-color var(--transition-fast)}.faq-item:hover{border-color:var(--border-color-hover)}.faq-question{width:100%;padding:var(--space-5) var(--space-6);background:transparent;border:none;text-align:left;font-family:var(--font-family-display);font-size:1.05rem;font-weight:700;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.faq-chevron{font-size:.9rem;color:var(--brand-primary);transition:transform var(--transition-base)}.faq-item.active .faq-chevron{transform:rotate(180deg)}.faq-answer{padding:0 var(--space-6) var(--space-6) var(--space-6);font-size:var(--font-size-sm);color:var(--text-secondary);line-height:1.65;display:none}.brand-logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.125rem;letter-spacing:.02em;color:inherit;text-decoration:none}.brand-logo:visited,.brand-logo:hover,.brand-logo:active,.brand-logo span{color:inherit;text-decoration:none}.brand-logo img{height:36px;width:auto}@media (max-width:480px){.preset-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}.preset-btn{padding:.75rem .5rem!important;font-size:.8125rem!important}.dropzone-container{padding:1.5rem 1rem!important}.dropzone-illustration{width:3.75rem!important;height:3.75rem!important;font-size:1.75rem!important}.dropzone-title{font-size:1.25rem!important}.upload-guarantee-list{gap:10px!important}}@media (max-width:380px){.brand-logo img{height:28px!important;width:auto!important}.brand-logo span{font-size:.875rem!important;white-space:nowrap!important}.header-actions{gap:6px!important}}