:root{--bg-base: #0b0d17;--bg-surface: #111327;--bg-elevated: #1a1d35;--bg-glass: rgba(20, 24, 50, .72);--bg-glass-hover: rgba(30, 35, 65, .85);--border: rgba(255, 255, 255, .08);--border-focus: rgba(102, 126, 234, .7);--border-hover: rgba(255, 255, 255, .16);--accent-1: #667eea;--accent-2: #764ba2;--accent-3: #f093fb;--accent-grad: linear-gradient(135deg, var(--accent-1), var(--accent-2));--accent-grad-wide: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-2) 50%, var(--accent-3) 100%);--text-primary: #f0f2ff;--text-secondary: #8892b8;--text-muted: #4a5178;--text-accent: #a5b4fc;--success: #34d399;--danger: #f87171;--warning: #fbbf24;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 20px;--radius-pill: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.4);--shadow-md: 0 4px 16px rgba(0,0,0,.5);--shadow-lg: 0 8px 32px rgba(0,0,0,.6);--shadow-glow: 0 0 20px rgba(102,126,234,.35);--shadow-glow-lg: 0 0 40px rgba(102,126,234,.5);--ease: cubic-bezier(.4, 0, .2, 1);--t-fast: .15s var(--ease);--t-med: .25s var(--ease);--t-slow: .4s var(--ease);--sidebar-w: 340px;--header-h: 60px}[data-theme=light]{--bg-base: #f4f5fb;--bg-surface: #ffffff;--bg-elevated: #eef0f8;--bg-glass: rgba(255, 255, 255, .8);--bg-glass-hover: rgba(245, 246, 252, .95);--border: rgba(15, 18, 40, .1);--border-focus: rgba(102, 126, 234, .7);--border-hover: rgba(15, 18, 40, .2);--text-primary: #1a1d35;--text-secondary: #5a6285;--text-muted: #9aa1c0;--text-accent: #5b6cf0;--shadow-sm: 0 1px 3px rgba(20, 24, 50, .08);--shadow-md: 0 4px 16px rgba(20, 24, 50, .12);--shadow-lg: 0 8px 32px rgba(20, 24, 50, .16);--shadow-glow: 0 0 20px rgba(102, 126, 234, .2);--shadow-glow-lg: 0 0 40px rgba(102, 126, 234, .3)}[data-theme=light] body:before{background:radial-gradient(ellipse 60% 50% at 20% 10%,rgba(102,126,234,.07) 0%,transparent 60%),radial-gradient(ellipse 50% 60% at 80% 90%,rgba(118,75,162,.05) 0%,transparent 55%)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.5;color:var(--text-primary);background:var(--bg-base);min-height:100dvh;display:flex;flex-direction:column;overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-surface)}::-webkit-scrollbar-thumb{background:var(--bg-elevated);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent-1)}:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:var(--radius-sm)}button{cursor:pointer;font-family:inherit}input{font-family:inherit}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 60% 50% at 20% 10%,rgba(102,126,234,.12) 0%,transparent 60%),radial-gradient(ellipse 50% 60% at 80% 90%,rgba(118,75,162,.1) 0%,transparent 55%);pointer-events:none;z-index:0}.app-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:#0b0d17d9;backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);border-bottom:1px solid var(--border);box-shadow:0 1px 24px #0006}.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;padding:0 var(--space-6);max-width:1800px;margin:0 auto}.logo{display:flex;align-items:center;gap:var(--space-3);text-decoration:none}.logo-icon{width:75px;height:75px;filter:drop-shadow(0 0 8px rgba(102,126,234,.6));transition:filter var(--t-med)}.logo:hover .logo-icon{filter:drop-shadow(0 0 14px rgba(102,126,234,.9))}.logo-text{display:flex;flex-direction:column}.logo-name{font-size:18px;font-weight:700;background:var(--accent-grad-wide);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}.logo-tagline{font-size:15px;color:var(--text-muted);font-weight:400;letter-spacing:.5px}.header-right{display:flex;align-items:center;gap:var(--space-3)}.guide-toggle-btn{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);background:#667eea1a;border:1px solid rgba(102,126,234,.25);border-radius:var(--radius-pill);color:var(--accent-1);font-size:15px;font-weight:600;transition:all var(--t-fast)}.guide-toggle-btn:hover{background:#667eea33;border-color:var(--accent-1)}.guide-toggle-btn[aria-expanded=true]{display:none}.theme-toggle-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-pill);color:var(--text-secondary);transition:all var(--t-fast);flex-shrink:0}.theme-toggle-btn:hover{background:var(--bg-glass-hover);border-color:var(--border-hover);color:var(--text-primary)}[data-theme=dark] .theme-icon--sun,html:not([data-theme=light]) .theme-icon--sun{display:none}[data-theme=dark] .theme-icon--moon,html:not([data-theme=light]) .theme-icon--moon{display:block}[data-theme=light] .theme-icon--moon{display:none}[data-theme=light] .theme-icon--sun{display:block}.app-main{flex:1;display:grid;grid-template-columns:var(--sidebar-w) 1fr auto;min-height:calc(100dvh - var(--header-h) - 40px);position:relative;z-index:1;max-width:1800px;margin:0 auto;width:100%;align-items:start}.controls-panel{background:var(--bg-glass);backdrop-filter:blur(24px) saturate(1.4);-webkit-backdrop-filter:blur(24px) saturate(1.4);border-right:1px solid var(--border);overflow-y:auto;overflow-x:hidden;padding:var(--space-4) 0 var(--space-8);position:sticky;top:var(--header-h);max-height:calc(100dvh - var(--header-h));align-self:start}.panel-section{padding:var(--space-5) var(--space-5) var(--space-4);border-bottom:1px solid var(--border);transition:background var(--t-fast)}.panel-section:last-child{border-bottom:none}.section-heading{display:flex;align-items:center;gap:var(--space-2);font-size:14px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;color:var(--text-secondary);margin-bottom:var(--space-4)}.section-icon{width:16px;height:16px;color:var(--accent-1);flex-shrink:0}.tab-bar{display:flex;flex-wrap:wrap;gap:var(--space-1);background:var(--bg-elevated);border-radius:var(--radius-md);padding:3px;margin-bottom:var(--space-4)}.size-tab-btn{flex:1;padding:var(--space-2) var(--space-1);font-size:13px;font-weight:500;color:var(--text-secondary);background:transparent;border:none;border-radius:var(--radius-sm);transition:all var(--t-fast);white-space:nowrap}.size-tab-btn.active{background:var(--accent-grad);color:#fff;box-shadow:var(--shadow-glow)}.size-tab-btn:not(.active):hover{background:var(--bg-glass-hover);color:var(--text-primary)}.size-tab-panel{display:none}.size-tab-panel.active{display:block}.preset-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2) var(--space-3);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--t-fast);gap:2px;min-width:0;overflow:hidden}.preset-btn:hover{border-color:var(--accent-1);background:var(--bg-glass-hover);box-shadow:0 0 12px #667eea40;transform:translateY(-1px)}.preset-btn.active{background:linear-gradient(135deg,#667eea33,#764ba233);border-color:var(--accent-1);box-shadow:0 0 14px #667eea4d}.preset-label{font-size:15px;font-weight:600}.preset-sub{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.ar-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--space-2)}.res-group{margin-bottom:var(--space-3)}.res-group-label{display:block;font-size:15px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--space-2)}.res-preset-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-2)}.preset-btn--res{font-size:14px}.custom-size-row{display:flex;align-items:flex-end;gap:var(--space-3)}.input-group{flex:1;display:flex;flex-direction:column;gap:var(--space-1)}.input-label{font-size:15px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.size-separator{font-size:20px;color:var(--text-muted);padding-bottom:4px}.input-with-unit{position:relative;display:flex;align-items:center}.number-input{width:100%;padding:var(--space-2) 32px var(--space-2) var(--space-3);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:15px;font-weight:500;transition:border-color var(--t-fast);-webkit-appearance:textfield;-moz-appearance:textfield;appearance:textfield}.number-input::-webkit-outer-spin-button,.number-input::-webkit-inner-spin-button{-webkit-appearance:none}.number-input:hover{border-color:var(--border-hover)}.number-input:focus{border-color:var(--border-focus);outline:none}.number-input--sm{padding-right:28px}.unit-badge{position:absolute;right:var(--space-2);font-size:12px;font-weight:600;color:var(--text-muted);pointer-events:none}.bg-type-toggle{display:flex;gap:var(--space-1);background:var(--bg-elevated);border-radius:var(--radius-md);padding:3px;margin-bottom:var(--space-4)}.bg-type-btn{flex:1;padding:var(--space-2) 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scale(1.15)}.ge-stop-handle:active{cursor:grabbing}.ge-controls{display:flex;flex-direction:column;gap:var(--space-3)}.ge-label{display:block;font-size:15px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--space-2)}.ge-stop-color-row{display:flex;flex-direction:column;gap:var(--space-2)}.ge-color-inputs{display:flex;align-items:center;gap:var(--space-2)}.ge-stop-color-picker{width:36px;height:36px;border-radius:var(--radius-sm);border:2px solid var(--border);cursor:pointer;background:none;padding:2px;flex-shrink:0;transition:border-color var(--t-fast)}.ge-stop-color-picker:hover{border-color:var(--border-focus)}.ge-stop-hex{flex:1;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:14px;font-family:monospace;padding:var(--space-2) var(--space-3);transition:border-color var(--t-fast)}.ge-stop-hex:focus{border-color:var(--border-focus);outline:none}.ge-add-stop-btn{align-self:flex-start;padding:var(--space-1) var(--space-3);font-size:15px;font-weight:500;background:#667eea1f;border:1px solid rgba(102,126,234,.25);border-radius:var(--radius-pill);color:var(--accent-1);transition:all var(--t-fast)}.ge-add-stop-btn:hover{background:#667eea38;border-color:var(--accent-1)}.ge-angle-row{display:flex;align-items:center;gap:var(--space-3)}.ge-angle-value{font-size:14px;font-weight:600;color:var(--text-accent);min-width:36px;text-align:right}.ge-radial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-1);max-width:120px}.ge-radial-btn{aspect-ratio:1;display:flex;align-items:center;justify-content:center;font-size:15px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);transition:all var(--t-fast)}.ge-radial-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.ge-radial-btn.active{background:#667eea33;border-color:var(--accent-1);color:var(--accent-1)}.ge-presets-section{margin-top:var(--space-2)}.ge-presets-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:var(--space-2)}.ge-preset-btn{aspect-ratio:1.5;border-radius:var(--radius-sm);border:2px solid var(--border);transition:all var(--t-fast);box-shadow:var(--shadow-sm)}.ge-preset-btn:hover{transform:scale(1.1);border-color:var(--border-focus);box-shadow:var(--shadow-glow)}.padding-controls{display:flex;flex-direction:column;gap:var(--space-3)}.pad-preset-group{display:flex;gap:var(--space-2);flex-wrap:wrap}.pad-btn{padding:var(--space-2) var(--space-3);font-size:14px;font-weight:500;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-pill);color:var(--text-secondary);transition:all var(--t-fast)}.pad-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.pad-btn.active{background:var(--accent-grad);border-color:transparent;color:#fff;box-shadow:var(--shadow-glow)}.pad-custom-row{display:flex;align-items:center;gap:var(--space-3)}.pad-custom-row .input-label{flex-shrink:0}.pad-custom-row .input-with-unit{width:90px}.drop-zone{position:relative;display:flex;align-items:center;justify-content:center;min-height:110px;border:2px dashed rgba(102,126,234,.3);border-radius:var(--radius-lg);background:#667eea0a;cursor:pointer;transition:all var(--t-med);overflow:hidden}.drop-zone:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--accent-grad);opacity:0;transition:opacity var(--t-med)}.drop-zone:hover{border-color:var(--accent-1);background:#667eea14}.drop-zone:hover:before{opacity:.04}.drop-zone.drag-over{border-color:var(--accent-1);border-style:solid;background:#667eea1f;box-shadow:0 0 24px 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var(--t-fast)}.format-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.format-btn.active{background:#667eea2e;border-color:var(--accent-1);color:var(--accent-1);box-shadow:0 0 10px #667eea33}.export-quality-row{margin-bottom:var(--space-3)}.quality-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2)}.quality-value{font-size:14px;font-weight:700;color:var(--accent-1)}.quality-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;background:linear-gradient(to right,var(--accent-1) 0%,var(--accent-1) calc(var(--progress, 92) * 1%),rgba(255,255,255,.08) calc(var(--progress, 92) * 1%),rgba(255,255,255,.08) 100%);border-radius:3px;outline:none;cursor:pointer;transition:background var(--t-fast)}.quality-slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:#fff;border-radius:50%;box-shadow:0 0 0 2.5px var(--accent-1),0 2px 8px 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var(--t-fast)}.ge-angle-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.estimated-size-row{display:flex;justify-content:space-between;align-items:center;font-size:14px;margin-bottom:var(--space-4);padding:var(--space-2) var(--space-3);background:var(--bg-elevated);border-radius:var(--radius-md);border:1px solid var(--border)}.est-label{color:var(--text-muted)}.est-value{font-weight:600;color:var(--text-accent)}.export-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-4) var(--space-5);font-size:16px;font-weight:700;letter-spacing:.3px;background:var(--accent-grad-wide);background-size:200% 200%;border:none;border-radius:var(--radius-lg);color:#fff;cursor:pointer;position:relative;overflow:hidden;transition:all var(--t-med);box-shadow:0 4px 20px #667eea66,0 1px #ffffff1a inset;animation:gradientShift 4s ease infinite}.export-btn:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#fff0;transition:background var(--t-fast)}.export-btn:hover{transform:translateY(-2px);box-shadow:0 8px 32px #667eea8c,0 1px #ffffff26 inset}.export-btn:hover:after{background:#ffffff14}.export-btn:active{transform:translateY(0)}.export-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.export-btn-icon{width:18px;height:18px;flex-shrink:0}.export-btn.loading .export-btn-icon{animation:spin 1s linear infinite}.preview-area{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-6);gap:var(--space-4);min-height:400px;position:sticky;top:var(--header-h);height:calc(100dvh - var(--header-h));overflow:hidden;background:repeating-conic-gradient(rgba(255,255,255,.015) 0% 25%,transparent 0% 50%) 0 0 / 24px 24px}.preview-canvas-wrap{display:flex;align-items:center;justify-content:center;flex:1;width:100%}.preview-canvas{display:block;border-radius:var(--radius-md);box-shadow:0 8px 40px #0009,0 2px 8px #0006;max-width:100%;max-height:calc(100dvh - var(--header-h) - 120px);animation:fadeIn .3s ease;transition:box-shadow var(--t-med)}.preview-canvas:hover{box-shadow:0 12px 50px #000000b3,0 0 0 1px #ffffff0f}.canvas-meta-bar{width:100%;text-align:center}.canvas-info-text{font-size:15px;color:var(--text-muted);font-variant-numeric:tabular-nums}.guide-panel{width:320px;background:var(--bg-surface);border-left:1px solid var(--border);position:sticky;top:var(--header-h);height:calc(100dvh - var(--header-h));overflow-y:auto;display:none;flex-direction:column}.guide-panel.open{display:flex;animation:slideInRight var(--t-med)}.guide-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--border);position:sticky;top:0;background:#111327e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:10}.guide-title{font-size:16px;font-weight:600;color:var(--text-primary)}.guide-close-btn{background:transparent;border:none;color:var(--text-muted);padding:var(--space-1);border-radius:var(--radius-sm);transition:all var(--t-fast);display:flex;align-items:center;justify-content:center}.guide-close-btn:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.guide-content{padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-6)}.guide-desc{font-size:15px;color:var(--text-secondary);line-height:1.6}.guide-step{display:flex;flex-direction:column;gap:var(--space-2)}.guide-step-title{font-size:15px;font-weight:600;color:var(--accent-1)}.guide-step-desc{font-size:14px;color:var(--text-secondary);line-height:1.5}.guide-img{width:100%;border-radius:var(--radius-md);border:1px solid var(--border);margin-top:var(--space-2);box-shadow:var(--shadow-sm)}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.language-switcher{position:relative}.lang-toggle{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-pill);color:var(--text-primary);font-size:15px;font-weight:500;transition:all var(--t-fast);white-space:nowrap}.lang-toggle:hover{border-color:var(--border-hover);background:var(--bg-glass-hover)}.lang-flag{font-size:20px;line-height:1}.lang-name{max-width:100px;overflow:hidden;text-overflow:ellipsis}.lang-chevron{transition:transform var(--t-fast);flex-shrink:0;color:var(--text-muted)}.lang-toggle[aria-expanded=true] .lang-chevron{transform:rotate(180deg)}.lang-dropdown{position:absolute;top:calc(100% + var(--space-2));right:0;min-width:200px;max-height:320px;overflow-y:auto;background:var(--bg-elevated);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--space-2);opacity:0;transform:translateY(-8px) scale(.97);pointer-events:none;transition:opacity var(--t-med),transform var(--t-med);z-index:200}.lang-dropdown.open{opacity:1;transform:translateY(0) scale(1);pointer-events:all}.lang-option{display:flex;align-items:center;gap:var(--space-3);width:100%;padding:var(--space-2) var(--space-3);background:transparent;border:none;border-radius:var(--radius-md);color:var(--text-secondary);font-size:15px;text-align:left;transition:all var(--t-fast)}.lang-option:hover{background:var(--bg-glass-hover);color:var(--text-primary)}.lang-option.active{background:#667eea26;color:var(--accent-1)}.lang-option-flag{font-size:20px;line-height:1;flex-shrink:0}.lang-option-name{font-size:15px}.landing-sections{width:100%;background:var(--bg-base);border-top:1px solid var(--border);padding:var(--space-8) 0}.content-container{max-width:1200px;margin:0 auto;padding:0 var(--space-6);display:flex;flex-direction:column;gap:80px}.section-header{margin-bottom:var(--space-6);max-width:600px}.section-title{font-size:24px;font-weight:700;color:var(--text-primary);margin-bottom:var(--space-3)}.section-title.text-center{text-align:center;margin:0 auto var(--space-6)}.section-desc{font-size:15px;color:var(--text-secondary);line-height:1.6}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-4)}.feature-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-5);transition:transform var(--t-fast),border-color var(--t-fast)}.feature-card:hover{transform:translateY(-2px);border-color:var(--border-hover)}.feature-icon{font-size:24px;margin-bottom:var(--space-3)}.feature-title{font-size:15px;font-weight:600;color:var(--text-primary);margin-bottom:var(--space-2)}.feature-desc{font-size:14px;color:var(--text-secondary);line-height:1.5}.faq-section{max-width:800px;margin:0 auto;width:100%}.faq-list{display:flex;flex-direction:column;gap:var(--space-3)}.faq-item{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}.faq-q{padding:var(--space-4) var(--space-5);font-size:15px;font-weight:500;color:var(--text-primary);cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none}.faq-q::-webkit-details-marker{display:none}.faq-q:hover{background:var(--bg-glass-hover)}.faq-chevron{color:var(--text-muted);transition:transform var(--t-med)}.faq-item[open] .faq-chevron{transform:rotate(180deg)}.faq-a{padding:0 var(--space-5) var(--space-4);font-size:14px;color:var(--text-secondary);line-height:1.6}.app-footer{text-align:center;padding:var(--space-3) var(--space-6);border-top:1px solid var(--border);background:#0003;position:relative;z-index:1}.footer-text{font-size:13px;color:var(--text-muted)}.coffee-btn-wrap{margin-top:var(--space-3);text-align:center}.coffee-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:#ffc4001f;border:1px solid rgba(255,196,0,.3);border-radius:var(--radius-pill);color:#f5c518;font-size:13px;font-weight:600;text-decoration:none;transition:all var(--t-fast);cursor:pointer}.coffee-btn:hover{background:#ffc40038;border-color:#ffc40099;color:gold}.coffee-btn--footer{display:inline-flex;margin-bottom:var(--space-2);font-size:12px}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes gradientShift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}[dir=rtl] .controls-panel{border-right:none;border-left:1px solid var(--border)}[dir=rtl] .logo-text{align-items:flex-end}[dir=rtl] .lang-dropdown{left:0;right:auto}[dir=rtl] .header-inner{flex-direction:row-reverse}@media(max-width:768px){:root{--sidebar-w: 100%}.guide-toggle-btn{display:none}.app-main{grid-template-columns:1fr;grid-template-rows:auto auto;min-height:auto;align-items:start}.preview-area{order:-1;position:sticky;top:var(--header-h);z-index:40;max-height:50dvh;min-height:160px;padding:var(--space-3) var(--space-4) var(--space-2);background:var(--bg-base);border-bottom:1px solid var(--border);box-shadow:0 4px 20px #0006}.preview-canvas-wrap{flex:1;min-height:0;max-height:calc(50dvh - 40px)}.preview-canvas{max-height:calc(50dvh - 48px)}.controls-panel{order:0;position:static;max-height:none;overflow-y:visible;border-right:none;border-top:none;border-bottom:none}body{overflow-y:auto}.guide-panel{order:1;position:static;width:100%;height:auto;border-left:none;border-top:1px solid var(--border);max-height:none;overflow-y:visible}.guide-panel.open{display:flex;animation:fadeIn var(--t-med)}.logo-tagline{display:none}.ar-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.res-preset-list{grid-template-columns:repeat(2,minmax(0,1fr))}.ge-presets-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}@media(max-width:480px){.header-inner{padding:0 var(--space-4)}.logo-name{font-size:15px}.lang-name{display:none}.ar-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.format-btn-group{gap:var(--space-1)}.preview-area{max-height:45dvh}.preview-canvas{max-height:calc(45dvh - 44px)}.landing-sections{padding:var(--space-6) 0}.content-container{gap:40px}.features-grid{grid-template-columns:1fr}}.preset-btn,.pad-btn,.format-btn,.bg-type-btn,.size-tab-btn{transition:all var(--t-fast)}.export-btn:before{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:calc(var(--radius-lg) + 4px);background:var(--accent-grad);opacity:0;z-index:-1;transition:opacity var(--t-med)}.export-btn:hover:before{opacity:.3;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:.3}50%{transform:scale(1.04);opacity:.1}}.control-row{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-3)}.text-input-row{display:flex;gap:var(--space-2);align-items:flex-start;margin-bottom:var(--space-3)}.text-textarea{flex:1;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:14px;padding:var(--space-2) var(--space-3);resize:vertical;min-height:60px;transition:border-color var(--t-fast);font-family:inherit}.text-textarea:focus{outline:none;border-color:var(--accent-1)}.emoji-trigger-btn{width:36px;height:36px;flex-shrink:0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;transition:border-color var(--t-fast);position:relative}.emoji-trigger-btn:hover{border-color:var(--border-hover)}.font-select{width:100%;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:13px;padding:var(--space-2) var(--space-3);cursor:pointer}.font-select:focus{outline:none;border-color:var(--accent-1)}.text-align-group{width:fit-content}.emoji-popover{position:absolute;bottom:calc(100% + 6px);right:0;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:var(--space-2);z-index:200;display:none;width:220px}.emoji-popover.open{display:block}.emoji-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:2px}.emoji-btn{background:transparent;border:none;border-radius:var(--radius-sm);font-size:18px;line-height:1;padding:3px;cursor:pointer;transition:background var(--t-fast);display:flex;align-items:center;justify-content:center}.emoji-btn:hover{background:var(--bg-elevated)}.pattern-overlay-panel{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--border)}.pattern-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);margin:var(--space-2) 0 var(--space-3)}.pattern-thumb-btn{width:100%;aspect-ratio:1;background:#1a1d35;border:2px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;display:flex;align-items:center;justify-content:center;padding:0;transition:border-color var(--t-fast),transform var(--t-fast);cursor:pointer}.pattern-thumb-btn:hover{border-color:var(--border-hover);transform:scale(1.05)}.pattern-thumb-btn.active{border-color:var(--accent-1)}.pattern-thumb-btn canvas{width:100%;height:100%;display:block}.pattern-none-icon{font-size:20px;color:var(--text-muted);opacity:.7}.preview-canvas-wrap{position:relative}.fullscreen-btn{position:absolute;top:var(--space-2);right:var(--space-2);width:34px;height:34px;background:var(--bg-glass);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--t-fast),background var(--t-fast);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:10}.preview-canvas-wrap:hover .fullscreen-btn,.fullscreen-btn:focus-visible{opacity:1}.fullscreen-btn:hover{background:var(--bg-glass-hover);color:var(--text-primary);opacity:1}.preview-area--modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:var(--bg-base);display:flex;flex-direction:column;align-items:center;justify-content:center}.preview-area--modal .fullscreen-btn--close{opacity:1}.preview-area:fullscreen,.preview-area:-webkit-full-screen{background:var(--bg-base);display:flex;flex-direction:column;align-items:center;justify-content:center}.preview-area:fullscreen .fullscreen-btn--close,.preview-area:-webkit-full-screen .fullscreen-btn--close{opacity:1}.wm-modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:flex-start;justify-content:center;padding:var(--space-4);overflow-y:auto;-webkit-overflow-scrolling:touch}.wm-modal[hidden]{display:none}.wm-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000b8;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}.wm-card{position:relative;z-index:1;background:var(--bg-surface);border:1px solid var(--border-hover);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg),var(--shadow-glow-lg);padding:var(--space-6);width:100%;max-width:460px;margin:auto;display:flex;flex-direction:column;gap:var(--space-5);animation:wm-slide-in var(--t-med) both}@keyframes wm-slide-in{0%{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.wm-header{text-align:center}.wm-eyebrow{font-size:12px;font-weight:600;letter-spacing:.6px;text-transform:uppercase;color:var(--accent-1);margin:0 0 var(--space-2)}.wm-title{font-size:20px;font-weight:700;color:var(--text-primary);margin:0 0 var(--space-2);line-height:1.3}.wm-desc{font-size:14px;color:var(--text-secondary);margin:0;line-height:1.5}.wm-preview-wrap{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:120px}.wm-preview-canvas{display:block;max-width:100%;border-radius:var(--radius-md)}.wm-actions{display:flex;flex-direction:column;gap:var(--space-2)}.wm-btn{width:100%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:15px;font-weight:600;cursor:pointer;transition:all var(--t-fast);display:flex;align-items:center;justify-content:center;gap:var(--space-2)}.wm-btn--yes{background:var(--accent-grad);border:none;color:#fff;box-shadow:0 4px 14px #667eea66}.wm-btn--yes:hover{filter:brightness(1.1);box-shadow:0 6px 20px #667eea8c;transform:translateY(-1px)}.wm-btn--no{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.wm-btn--no:hover{border-color:var(--border-hover);color:var(--text-primary);background:var(--bg-elevated)}.wm-coffee{text-align:center;padding-top:var(--space-3);border-top:1px solid var(--border);margin-top:var(--space-1)}.wm-customize{display:flex;flex-direction:column;gap:var(--space-3);border-top:1px solid var(--border);padding-top:var(--space-4)}.wm-ctrl-row{display:flex;flex-direction:column;gap:var(--space-2)}.wm-ctrl-label-row{display:flex;justify-content:space-between;align-items:center}.wm-ctrl-label{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.wm-ctrl-value{font-size:12px;font-weight:700;color:var(--accent-1)}.wm-position-grid{display:grid;grid-template-columns:repeat(3,32px);grid-template-rows:repeat(3,32px);gap:var(--space-1)}.wm-pos-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-secondary);font-size:16px;cursor:pointer;transition:all var(--t-fast)}.wm-pos-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}.wm-pos-btn.active{background:#667eea2e;border-color:var(--accent-1);color:var(--accent-1)}.wm-logo-toggle{width:fit-content}.wm-logo-toggle .format-btn{min-width:56px}.wm-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;background:linear-gradient(to right,var(--accent-1) 0%,var(--accent-1) calc(var(--wm-progress, 0) * 1%),rgba(255,255,255,.08) calc(var(--wm-progress, 0) * 1%),rgba(255,255,255,.08) 100%);border-radius:3px;outline:none;cursor:pointer}.wm-slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:#fff;border-radius:50%;box-shadow:0 0 0 2.5px var(--accent-1),0 2px 8px #00000080;cursor:pointer;transition:transform var(--t-fast),box-shadow var(--t-fast)}.wm-slider::-webkit-slider-thumb:hover{transform:scale(1.25);box-shadow:0 0 0 3px var(--accent-1),var(--shadow-glow)}.wm-slider::-moz-range-thumb{width:18px;height:18px;background:#fff;border-radius:50%;border:2.5px solid var(--accent-1);box-shadow:0 2px 8px #0006;cursor:pointer}.wm-slider::-moz-range-track{height:6px;border-radius:3px;background:#ffffff14}.wm-slider::-moz-range-progress{height:6px;border-radius:3px;background:var(--accent-1)}