:root{--color-primary:#1d1d1f;--color-primary-hover:#3a3a3c;--color-secondary:#f5f5f7;--color-secondary-hover:#e8e8eb;--color-background:#fff;--color-text:#1d1d1f;--color-accent:#86868b;--color-error:#ff3b30;--color-inactive:#e5e5ea;--color-inactive-text:#aeaeb2;--btn-size:44px;--btn-radius:14px;--btn-gap:10px;--spacing-xs:8px;--spacing-sm:16px;--spacing-md:24px;--spacing-lg:32px;--spacing-xl:48px;--border-radius:12px;--shadow-sm:0 2px 8px #0000000a;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001f;--duration-fast:.2s;--duration-mid:.25s;--duration-slow:.3s;--duration-enter:.35s;--ease-out-soft:cubic-bezier(.25, .8, .35, 1);--font-family:-apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--card-size:600px}*{box-sizing:border-box;margin:0;padding:0}html{width:100%;height:100%;height:-webkit-fill-available;position:fixed;overflow:hidden}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;padding:env(safe-area-inset-top,var(--spacing-md)) env(safe-area-inset-right,var(--spacing-md)) env(safe-area-inset-bottom,var(--spacing-md)) env(safe-area-inset-left,var(--spacing-md));width:100%;height:100%;min-height:100vh;touch-action:manipulation;min-height:-webkit-fill-available;margin:0;line-height:1.5;position:relative;overflow:hidden}.container{max-width:var(--card-size);padding:var(--spacing-md);flex-direction:column;height:100%;margin:0 auto;display:flex}header{text-align:left;margin-bottom:var(--spacing-md)}.logo-container{justify-content:flex-start;align-items:center;gap:var(--spacing-xs);display:flex}.logo-icon{border-radius:4px;width:32px;height:32px}h1{letter-spacing:-.5px;color:var(--color-text);font-size:20px;font-weight:600}main{gap:var(--spacing-md);flex-direction:column;flex:1;justify-content:center;display:flex}footer{margin-top:var(--spacing-sm);color:var(--color-text);padding:var(--spacing-sm) 0;justify-content:space-between;align-items:center;font-size:14px;display:flex}.footer-left{font-size:12px}.footer-right{gap:var(--spacing-sm);display:flex}.social-icon{color:var(--color-text);transition:color var(--duration-slow) ease;align-items:center;display:inline-flex}.social-icon:hover{color:var(--color-primary)}.card{background-color:var(--color-background);border-radius:var(--border-radius);box-shadow:var(--shadow-sm);transition:box-shadow var(--duration-slow) ease;border:1px solid var(--color-secondary)}.card:hover{box-shadow:var(--shadow-md)}.text-card{border-radius:var(--border-radius);width:100%;height:55vh;min-height:250px;padding:0;position:relative;overflow:hidden}textarea{width:100%;height:100%;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) * 2);border-radius:var(--border-radius);font-family:var(--font-family);resize:none;transition:all var(--duration-slow) cubic-bezier(.4, 0, .2, 1);z-index:1;appearance:none;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;-ms-overflow-style:none;scrollbar-width:none;border:none;outline:none;font-size:12px;line-height:1.6;position:absolute;top:0;left:0;overflow-y:auto}textarea::-webkit-scrollbar{width:0;display:none}textarea::placeholder{color:var(--color-accent)}textarea:focus{outline:none}textarea.recording-disabled{cursor:not-allowed;opacity:.6;-webkit-user-select:none;user-select:none}.btn{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius);font-family:var(--font-family);cursor:pointer;transition:transform var(--duration-fast) var(--ease-out-soft), background-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease, opacity var(--duration-fast) ease;justify-content:center;align-items:center;gap:var(--spacing-xs);-webkit-tap-highlight-color:transparent;touch-action:manipulation;-webkit-user-select:none;user-select:none;border:none;font-size:16px;font-weight:500;display:inline-flex}.magic-btn,.copy-btn,.mic-btn{width:var(--btn-size);height:var(--btn-size);border-radius:var(--btn-radius);box-shadow:var(--shadow-sm);padding:0}.magic-btn:active,.copy-btn:active,.mic-btn:active{transform:scale(.92)}@media (hover:hover) and (pointer:fine){.magic-btn:hover,.copy-btn:hover,.mic-btn:hover{transform:scale(1.05)}.copy-btn:hover,.mic-btn:hover{background-color:var(--color-secondary-hover)}.magic-btn:hover{background-color:var(--color-primary-hover)}.magic-btn.inactive:hover{background-color:#dcdce0;transform:scale(1.02)}.mic-btn.recording:hover{background-color:#d4d4d8}}.magic-btn{background-color:var(--color-primary);color:#fff;font-size:16px}.magic-btn.inactive{background-color:var(--color-inactive);color:var(--color-inactive-text)}.magic-btn.disabled-for-processing{opacity:.4;pointer-events:none}.copy-btn{background-color:var(--color-secondary);color:var(--color-text)}.copy-btn.hidden-for-empty,.copy-btn.hidden-for-recording{opacity:0;pointer-events:none;width:0;margin:0;padding:0;overflow:hidden}.copy-btn.copied{background-color:var(--color-text);color:#fff}.copy-btn .check-icon,.copy-btn.copied .copy-icon{display:none}.copy-btn.copied .check-icon{display:block}.mic-btn{background-color:var(--color-secondary);color:var(--color-text);position:relative;overflow:hidden}.mic-btn .mic-icon,.mic-btn .stop-icon{transition:opacity var(--duration-fast) ease, transform var(--duration-fast) var(--ease-out-soft)}.mic-btn .mic-icon{width:20px;height:20px}.mic-btn .stop-icon{opacity:0;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)scale(.6)}.mic-btn .btn-spinner{opacity:0;width:18px;height:18px;transition:opacity var(--duration-mid) ease;border:2px solid #0000;border-top-color:#fff;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.mic-btn.recording{box-shadow:none;background-color:#e0e0e4}.mic-btn.recording .mic-icon{opacity:0;transform:scale(0)}.mic-btn.recording .stop-icon{opacity:1;color:var(--color-error);transform:translate(-50%,-50%)scale(1)}.mic-btn.loading{box-shadow:none;pointer-events:none;background-color:#c8c8cc}.mic-btn.loading .mic-icon,.mic-btn.loading .stop-icon{opacity:0}.mic-btn.loading .btn-spinner{opacity:1;border-top-color:#666;animation:.6s linear infinite btn-spin}@keyframes btn-spin{to{transform:translate(-50%,-50%)rotate(360deg)}}.button-container{bottom:var(--spacing-md);right:var(--spacing-md);align-items:center;gap:var(--btn-gap);z-index:2;transition:gap var(--duration-slow) ease;display:flex;position:absolute}.waveform-bar{bottom:var(--spacing-md);left:var(--spacing-md);right:calc(var(--spacing-md) + var(--btn-size) + var(--btn-gap) + var(--btn-size) + var(--btn-gap));height:var(--btn-size);border-radius:var(--btn-radius);z-index:1;transition:opacity var(--duration-enter) cubic-bezier(.4, 0, .2, 1), transform var(--duration-enter) cubic-bezier(.4, 0, .2, 1);background-color:#f0f0f2;align-items:center;gap:0;padding:0 14px;display:flex;position:absolute;overflow:hidden}.waveform-bar.hidden{opacity:0;transform-origin:100%;pointer-events:none;transform:scaleX(0)}.waveform-bar.visible{opacity:1;transform:scaleX(1)}.waveform-scroll{contain:strict;flex:1;width:100%;height:36px;position:relative;overflow:hidden}.waveform-canvas{width:100%;height:100%;display:block}.timer-display{color:var(--color-accent);letter-spacing:.3px;text-align:right;flex-shrink:0;min-width:40px;margin-left:12px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:12px;font-weight:500}.loading-container{border-radius:var(--border-radius);z-index:10;opacity:1;width:100%;height:100%;transition:opacity var(--duration-slow) ease;-webkit-backdrop-filter:blur(8px);background-color:#ffffffb8;justify-content:center;align-items:center;display:flex;position:absolute;top:0;left:0}.loading-content{align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);flex-direction:column;display:flex}.loading-content img{width:32px;height:32px}.loading-content p{color:var(--color-accent);font-size:14px;font-weight:500}.toast{top:calc(env(safe-area-inset-top,0px) + 20px);box-shadow:var(--shadow-lg);z-index:20;opacity:1;max-width:90%;transition:opacity var(--duration-mid) ease, transform var(--duration-slow) var(--ease-out-soft);background-color:var(--color-text);color:var(--color-background);border-radius:100px;padding:10px 18px;font-size:14px;position:absolute;left:50%;transform:translate(-50%)scale(1)}.toast.hidden{opacity:0;pointer-events:none;transform:translate(-50%)translateY(-8px)scale(.96)}.notice-container{align-items:center;gap:var(--spacing-sm);white-space:nowrap;display:flex}.toast-action{color:var(--color-background);font-family:var(--font-family);cursor:pointer;text-underline-offset:3px;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-shrink:0;padding:0;font-size:14px;font-weight:600;text-decoration:underline}.toast-action:hover{opacity:.8}.toast-action.hidden-action{display:none}.error-content{text-align:left;flex-direction:row;align-items:center;gap:10px;display:flex}.error-content svg{color:var(--color-error);flex-shrink:0;width:18px;height:18px}#error-message{font-weight:500}.hidden{opacity:0;pointer-events:none;position:absolute;transform:translateY(10px)}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@keyframes flash{0%{background-color:var(--color-background)}50%{background-color:#0000000d}to{background-color:var(--color-background)}}.flash{animation:flash var(--duration-slow) ease}@media (width>=1200px){.container{max-width:1100px;padding:var(--spacing-xl) var(--spacing-lg)}header{margin-bottom:var(--spacing-xl)}textarea{padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px);font-size:18px}}@media (width<=1024px){.container{padding:var(--spacing-md) var(--spacing-sm)}}@media (width<=768px){:root{--btn-size:42px;--btn-radius:12px;--btn-gap:8px}body{padding:var(--spacing-sm)}.container{padding:var(--spacing-sm);height:100%}h1{font-size:22px}.button-container{bottom:var(--spacing-sm);right:var(--spacing-sm)}.waveform-bar{bottom:var(--spacing-sm);left:var(--spacing-sm);padding:0 12px}footer{align-items:center;gap:var(--spacing-sm);text-align:center;flex-direction:column}.footer-right{justify-content:center}}@media only screen and (device-width>=768px) and (device-width<=1024px) and (orientation:portrait),only screen and (device-width>=834px) and (device-width<=1194px) and (orientation:portrait),only screen and (device-width:820px) and (device-height:1180px) and (orientation:portrait){:root{--btn-size:44px;--btn-radius:14px}.container{max-width:1100px;padding:var(--spacing-xl) var(--spacing-lg)}header{margin-bottom:var(--spacing-xl)}textarea{padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px);font-size:18px}.button-container{bottom:var(--spacing-lg);right:var(--spacing-lg)}}@media only screen and (device-width>=768px) and (device-width<=1024px) and (orientation:landscape),only screen and (device-width>=834px) and (device-width<=1194px) and (orientation:landscape),only screen and (device-width>=1024px) and (device-width<=1366px) and (orientation:landscape){.container{max-width:1100px;padding:var(--spacing-xl) var(--spacing-lg)}textarea{padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px);font-size:18px}main{gap:var(--spacing-md)}footer{margin-top:var(--spacing-lg)}.button-container{bottom:var(--spacing-lg);right:var(--spacing-lg)}}@media only screen and (device-width>=375px) and (device-width<=428px) and (device-height>=812px) and (device-height<=926px){:root{--btn-size:42px;--btn-radius:12px;--btn-gap:8px}body{padding:16px}.container{max-width:100%;padding:20px 12px}h1{font-size:22px}textarea{padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-lg) + 10px);max-height:calc(100vh - 250px);font-size:17px}.button-container{bottom:15px;right:15px}.waveform-bar{padding:0 12px;bottom:15px;left:15px}}@media only screen and (device-width>=320px) and (device-width<=375px) and (device-height<=667px){:root{--btn-size:38px;--btn-radius:10px;--btn-gap:6px}body,.container{padding:8px}h1{font-size:18px}.logo-icon{width:24px;height:24px}textarea{padding:12px 12px 60px;font-size:14px}.magic-btn{font-size:14px}.button-container{bottom:12px;right:12px}.waveform-bar{padding:0 10px;bottom:12px;left:12px}.timer-display{min-width:32px;margin-left:6px;font-size:10px}footer{margin-top:12px;font-size:12px}}@supports (padding-top:env(safe-area-inset-top)){body{padding-top:env(safe-area-inset-top,var(--spacing-md));padding-right:env(safe-area-inset-right,var(--spacing-md));padding-bottom:env(safe-area-inset-bottom,var(--spacing-md));padding-left:env(safe-area-inset-left,var(--spacing-md))}}.ios-device{-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;min-height:-webkit-fill-available}.ios-device .text-card{height:55vh;max-height:55vh;position:relative;overflow:hidden}.ios-device textarea{-webkit-overflow-scrolling:touch;overscroll-behavior:none;-webkit-touch-callout:default;-webkit-user-select:text;user-select:text;height:100%;max-height:55vh;position:absolute;inset:0;overflow-y:auto}.ios-device *{touch-action:manipulation}body.keyboard-open{height:calc(100% - 20px)}