:root{--color-primary: #471580;--color-primary-hover: #5a1ca3;--color-secondary: #F5F5F7;--color-secondary-hover: #e8e8eb;--color-background: #FFFFFF;--color-text: #1D1D1F;--color-accent: #86868B;--color-error: #ff3b30;--color-success: #34c759;--color-inactive: #d1d1d6;--color-inactive-text: #8e8e93;--btn-size: 44px;--btn-radius: 14px;--btn-gap: 10px;--btn-size-recording: 32px;--btn-radius-recording: 8px;--spacing-xs: 8px;--spacing-sm: 16px;--spacing-md: 24px;--spacing-lg: 32px;--spacing-xl: 48px;--border-radius: 12px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--transition-speed: .3s;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--card-size: 600px}*{margin:0;padding:0;box-sizing:border-box}html{height:100%;width:100%;overflow:hidden;position:fixed;height:-webkit-fill-available}body{font-family:var(--font-family);background-color:var(--color-background);color:var(--color-text);line-height:1.5;-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));height:100%;width:100%;overflow:hidden;position:relative;min-height:100vh;min-height:-webkit-fill-available;margin:0;touch-action:manipulation}.container{max-width:var(--card-size);margin:0 auto;padding:var(--spacing-md);height:100%;display:flex;flex-direction:column}header{text-align:left;margin-bottom:var(--spacing-md)}.logo-container{display:flex;justify-content:flex-start;align-items:center;gap:var(--spacing-xs)}.logo-icon{width:32px;height:32px;border-radius:4px}h1{font-weight:600;font-size:20px;letter-spacing:-.5px;color:var(--color-text)}main{display:flex;flex-direction:column;gap:var(--spacing-md);flex:1;justify-content:center}footer{margin-top:var(--spacing-sm);color:var(--color-text);font-size:14px;display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) 0}.footer-left{font-size:12px}.footer-right{display:flex;gap:var(--spacing-sm)}.social-icon{color:var(--color-text);transition:color var(--transition-speed) ease;font-size:18px}.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(--transition-speed) ease;border:1px solid var(--color-secondary)}.card:hover{box-shadow:var(--shadow-md)}.text-card{width:100%;height:55vh;position:relative;padding:0;min-height:250px;border-radius:var(--border-radius);overflow:hidden}textarea{width:100%;height:100%;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) * 2);border-radius:var(--border-radius);border:none;font-family:var(--font-family);font-size:12px;resize:none;transition:all var(--transition-speed) cubic-bezier(.4,0,.2,1);position:absolute;top:0;left:0;z-index:1;line-height:1.6;-webkit-appearance:none;-moz-appearance:none;appearance:none;outline:none;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;overflow-y:auto;-ms-overflow-style:none;scrollbar-width:none}textarea::-webkit-scrollbar{display:none;width:0}@keyframes placeholderFade{0%,to{opacity:.5}50%{opacity:1}}textarea::placeholder{animation:placeholderFade 2s ease-in-out infinite;color:var(--color-accent)}textarea:focus{outline:none}textarea.recording-disabled{cursor:not-allowed;opacity:.6;user-select:none;-webkit-user-select:none}.btn{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius);border:none;font-family:var(--font-family);font-weight:500;font-size:16px;cursor:pointer;transition:all var(--transition-speed) ease;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs)}.btn.secondary{background-color:var(--color-secondary);color:var(--color-text)}.btn.secondary:hover{background-color:var(--color-secondary-hover)}.magic-btn{width:var(--btn-size);height:var(--btn-size);border-radius:var(--btn-radius);background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm);font-size:16px;padding:0;transition:all .3s ease}.magic-btn:hover{transform:scale(1.05);background-color:var(--color-primary-hover)}.magic-btn:active{transform:scale(.95)}.magic-btn.inactive{background-color:var(--color-inactive);color:var(--color-inactive-text)}.magic-btn.inactive:hover{background-color:#c7c7cc;transform:scale(1.02)}.magic-btn.disabled-for-processing{opacity:.4;pointer-events:none;filter:grayscale(60%)}.copy-btn{width:var(--btn-size);height:var(--btn-size);border-radius:var(--btn-radius);background-color:var(--color-secondary);color:var(--color-text);box-shadow:var(--shadow-sm);padding:0;transition:all .3s ease}.copy-btn:hover{background-color:var(--color-secondary-hover);transform:scale(1.05)}.copy-btn.hidden-for-empty,.copy-btn.hidden-for-recording{opacity:0;pointer-events:none;width:0;padding:0;margin:0;overflow:hidden}.mic-btn{width:var(--btn-size);height:var(--btn-size);border-radius:var(--btn-radius);background-color:var(--color-secondary);color:var(--color-text);box-shadow:var(--shadow-sm);padding:0;position:relative;transition:all .3s cubic-bezier(.4,0,.2,1);overflow:hidden}.mic-btn .mic-icon{transition:all .25s ease;width:20px;height:20px}.mic-btn .stop-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:14px;opacity:0;transition:all .25s ease}.mic-btn .btn-spinner{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:18px;height:18px;border:2px solid transparent;border-top-color:#fff;border-radius:50%;opacity:0;transition:opacity .25s ease}.mic-btn:hover{background-color:var(--color-secondary-hover);transform:scale(1.05)}.mic-btn:active{transform:scale(.95)}.mic-btn.recording{width:var(--btn-size-recording);height:var(--btn-size-recording);border-radius:var(--btn-radius-recording);background-color:#e0e0e4;box-shadow:none}.mic-btn.recording:hover{background-color:#d4d4d8;transform:scale(1.08)}.mic-btn.recording .mic-icon{opacity:0;transform:scale(0)}.mic-btn.recording .stop-icon{opacity:1;color:var(--color-text)}.mic-btn.loading{width:var(--btn-size-recording);height:var(--btn-size-recording);border-radius:var(--btn-radius-recording);background-color:#c8c8cc;box-shadow:none;pointer-events:none}.mic-btn.loading .mic-icon,.mic-btn.loading .stop-icon{opacity:0}.mic-btn.loading .btn-spinner{opacity:1;border-top-color:#666;animation:btn-spin .6s linear infinite}@keyframes btn-spin{to{transform:translate(-50%,-50%) rotate(360deg)}}.button-container{position:absolute;bottom:var(--spacing-md);right:var(--spacing-md);display:flex;align-items:center;gap:var(--btn-gap);z-index:2;transition:gap .3s ease}.waveform-bar{position:absolute;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);background-color:#f0f0f2;border-radius:var(--btn-radius);display:flex;align-items:center;padding:0 14px;gap:0;z-index:1;overflow:hidden;transition:all .35s cubic-bezier(.4,0,.2,1)}.waveform-bar.hidden{opacity:0;transform:scaleX(0);transform-origin:right center;pointer-events:none}.waveform-bar.visible{opacity:1;transform:scaleX(1)}.waveform-scroll{flex:1;display:flex;align-items:center;flex-direction:row-reverse;justify-content:flex-start;height:36px;gap:1.5px;overflow:hidden;width:100%}.waveform-item{width:1px;min-width:1px;height:2px;background-color:#888;border-radius:.5px;flex-shrink:0;align-self:center;transition:height .08s ease-out}.timer-display{font-family:SF Mono,Monaco,Consolas,monospace;font-size:12px;font-weight:500;color:#888;letter-spacing:.3px;min-width:40px;text-align:right;margin-left:12px;flex-shrink:0}.loading-container{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;justify-content:center;align-items:center;background-color:#ffffffe6;border-radius:var(--border-radius);z-index:10;opacity:1;transition:opacity var(--transition-speed) ease;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.loading-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);background-color:var(--color-background);border-radius:var(--border-radius);box-shadow:var(--shadow-md)}.loading-content p{color:var(--color-accent);font-weight:500}.error-container{position:absolute;top:20px;left:50%;transform:translate(-50%);background-color:var(--color-background);border-radius:var(--border-radius);padding:var(--spacing-md);border-left:4px solid var(--color-error);opacity:1;transition:all var(--transition-speed) ease;box-shadow:var(--shadow-lg);z-index:20;max-width:90%}.error-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md);text-align:center}.error-content svg{color:var(--color-error)}#error-message{color:var(--color-text);font-weight:500}.hidden{opacity:0;pointer-events:none;position:absolute;transform:translateY(10px)}@keyframes flash{0%{background-color:var(--color-background)}50%{background-color:#4715801a}to{background-color:var(--color-background)}}.flash{animation:flash .3s ease}@media (min-width: 1200px){.container{max-width:1100px;padding:var(--spacing-xl) var(--spacing-lg)}header{margin-bottom:var(--spacing-xl)}textarea{font-size:18px;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px)}}@media (max-width: 1024px){.container{padding:var(--spacing-md) var(--spacing-sm)}}@media (max-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{flex-direction:column;align-items:center;gap:var(--spacing-sm);text-align:center}.footer-right{justify-content:center}}@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: portrait),only screen and (min-device-width: 834px) and (max-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{font-size:18px;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px)}.button-container{bottom:var(--spacing-lg);right:var(--spacing-lg)}}@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) and (orientation: landscape),only screen and (min-device-width: 834px) and (max-device-width: 1194px) and (orientation: landscape),only screen and (min-device-width: 1024px) and (max-device-width: 1366px) and (orientation: landscape){.container{max-width:1100px;padding:var(--spacing-xl) var(--spacing-lg)}textarea{font-size:18px;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-xl) + 20px)}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 (min-device-width: 375px) and (max-device-width: 428px) and (min-device-height: 812px) and (max-device-height: 926px){:root{--btn-size: 42px;--btn-radius: 12px;--btn-gap: 8px}body{padding:16px}.container{padding:20px 12px;max-width:100%}h1{font-size:22px}textarea{font-size:17px;padding:var(--spacing-md) var(--spacing-md) calc(var(--spacing-lg) + 10px);max-height:calc(100vh - 250px)}.button-container{bottom:15px;right:15px}.waveform-bar{bottom:15px;left:15px;padding:0 12px}}@media only screen and (min-device-width: 320px) and (max-device-width: 375px) and (max-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{font-size:14px;padding:12px 12px 60px}.magic-btn{font-size:14px}.button-container{bottom:12px;right:12px}.waveform-bar{bottom:12px;left:12px;padding:0 10px}.timer-display{font-size:10px;min-width:32px;margin-left:6px}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{position:relative;height:55vh;max-height:55vh;overflow:hidden}.ios-device textarea{position:absolute;top:0;left:0;right:0;bottom:0;height:100%;max-height:55vh;-webkit-overflow-scrolling:touch;overflow-y:auto;overscroll-behavior:none;-webkit-touch-callout:default;-webkit-user-select:text;user-select:text}.ios-device *{touch-action:manipulation}body.keyboard-open{height:calc(100% - 20px)}