*{margin:0;padding:0;box-sizing:border-box}:root{--primary-cyan: #00d4ff;--purple: #a855f7;--magenta: #e040fb;--gradient: linear-gradient(135deg, var(--primary-cyan), var(--purple), var(--magenta));--bg-primary: #0a0e1a;--bg-secondary: #121829;--bg-card: #1a2035;--bg-card-hover: #222945;--text-primary: #f0f2f5;--text-secondary: #a0a8c0;--border-color: #2a3050;--shadow: 0 4px 20px rgba(0, 0, 0, .3);--shadow-hover: 0 8px 30px rgba(0, 212, 255, .15)}[data-theme=light]{--bg-primary: #f0f2f5;--bg-secondary: #e4e7ed;--bg-card: #ffffff;--bg-card-hover: #f8f9fb;--text-primary: #0a0e1a;--text-secondary: #555e70;--border-color: #d0d5e0;--shadow: 0 4px 20px rgba(0, 0, 0, .08);--shadow-hover: 0 8px 30px rgba(168, 85, 247, .12)}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;transition:background-color .3s,color .3s}a{color:var(--primary-cyan);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block}#root{min-height:100vh;display:flex;flex-direction:column}.header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);padding:12px 16px;position:sticky;top:0;z-index:100;transition:background-color .3s}.header-inner{max-width:720px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.header-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-primary);flex-shrink:0}.header-logo:hover{text-decoration:none}.header-logo img{width:36px;height:36px;border-radius:8px}.header-logo span{font-size:1.1rem;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-controls{display:flex;align-items:center;gap:8px}.language-selector-wrap{position:relative;display:flex;align-items:center}.language-selector-icon{position:absolute;left:10px;pointer-events:none;color:var(--text-secondary)}[dir=rtl] .language-selector-icon{left:auto;right:10px}.language-selector{appearance:none;background-color:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;padding:8px 12px 8px 34px;font-size:.875rem;cursor:pointer;min-height:44px;transition:border-color .2s}[dir=rtl] .language-selector{padding:8px 34px 8px 12px}.language-selector:focus{outline:none;border-color:var(--primary-cyan)}.theme-toggle{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;transition:border-color .2s,background-color .2s;color:var(--text-primary)}.theme-toggle:hover{border-color:var(--primary-cyan)}@media(min-width:768px){.header{padding:16px 24px}.header-logo img{width:40px;height:40px}.header-logo span{font-size:1.25rem}}.device-card{display:flex;align-items:center;gap:16px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:20px;text-decoration:none;color:var(--text-primary);transition:transform .2s,box-shadow .2s,border-color .2s,background-color .2s;box-shadow:var(--shadow);min-height:80px}.device-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary-cyan);background:var(--bg-card-hover)}.device-card:active{transform:translateY(0)}.device-card-icon{font-size:2.5rem;flex-shrink:0;width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border-radius:12px}.device-card-text{flex:1}.device-card-text h3{font-size:1.125rem;font-weight:600;margin-bottom:2px}.device-card-arrow{font-size:1.25rem;color:var(--text-secondary);flex-shrink:0}[dir=rtl] .device-card-arrow{transform:scaleX(-1)}.home{padding-top:24px;padding-bottom:40px}.home-hero{text-align:center;margin-bottom:32px}.home-hero h1{font-size:1.5rem;font-weight:700;margin-bottom:8px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.home-hero p{color:var(--text-secondary);font-size:1rem}.device-list{display:flex;flex-direction:column;gap:12px}@media(min-width:768px){.home-hero h1{font-size:1.75rem}.device-list{gap:16px}}.step-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:20px;box-shadow:var(--shadow);transition:background-color .3s}.step-card-header{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}.step-number{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--gradient);color:#fff;font-size:.875rem;font-weight:700;display:flex;align-items:center;justify-content:center}.step-card-header h3{font-size:1.05rem;font-weight:600;line-height:1.4;padding-top:4px}.step-card p{color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin-bottom:12px}.step-card p:last-child{margin-bottom:0}.step-card .step-link{display:inline-flex;align-items:center;gap:6px;background:var(--gradient);color:#fff;padding:10px 20px;border-radius:10px;font-size:.95rem;font-weight:600;text-decoration:none;min-height:44px;transition:opacity .2s}.step-card .step-link:hover{opacity:.9;text-decoration:none}.step-card-screenshot{margin-top:16px;border-radius:12px;overflow:hidden;border:1px solid var(--border-color);max-width:320px}.step-card-screenshot img{width:100%;display:block}@media(min-width:768px){.step-card{padding:24px}.step-card-screenshot{max-width:360px}}.instruction{padding-top:16px;padding-bottom:40px}.instruction-back{display:inline-flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:.95rem;text-decoration:none;padding:8px 0;margin-bottom:16px;min-height:44px}[dir=rtl] .instruction-back .back-arrow{transform:scaleX(-1)}.instruction-back:hover{color:var(--primary-cyan);text-decoration:none}.instruction h1{font-size:1.35rem;font-weight:700;margin-bottom:20px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.steps-list{display:flex;flex-direction:column;gap:16px;margin-bottom:32px}.instruction-support{text-align:center;padding:20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;box-shadow:var(--shadow)}.instruction-support p{color:var(--text-secondary);font-size:.95rem;margin-bottom:8px}.instruction-support a{display:inline-flex;align-items:center;gap:6px;background:var(--gradient);color:#fff;padding:10px 24px;border-radius:10px;font-weight:600;min-height:44px;text-decoration:none;transition:opacity .2s}.instruction-support a:hover{opacity:.9;text-decoration:none}@media(min-width:768px){.instruction h1{font-size:1.5rem}.steps-list{gap:20px}}.app{flex:1;display:flex;flex-direction:column}.main-content{flex:1;width:100%;max-width:640px;margin:0 auto;padding:16px}@media(min-width:768px){.main-content{max-width:720px;padding:24px}}