:root{--bg-color: #121212;--text-color: #f0f0f0;--teal-light: #a7f3e8;--teal-mid: #8fdfd4;--teal-dark: #6abfab;--teal-mid-rgb: 143, 223, 212;--accent-color: var(--teal-mid);--accent-gradient: linear-gradient( 135deg, var(--teal-dark), var(--teal-mid), var(--teal-light) );--accent-glow: rgba(143, 223, 212, .25);--card-border-color: rgba(var(--teal-mid-rgb), .15);--popover-bg: rgba(32, 32, 32, .97);--border-radius: 12px;--border-radius-large: 16px;--modal-backdrop-color: rgba(0, 0, 0, .85);--success-color: #3fb950;--error-color: #f85149;--easing-standard: cubic-bezier(.4, 0, .2, 1);--easing-emphasized: cubic-bezier(.2, 0, 0, 1);--easing-decelerate: cubic-bezier(0, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}main{margin:5rem 0 0;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(100vh - 5rem - 85px);overflow-x:hidden;width:100%;max-width:none;padding:0;background:transparent;border-radius:0;box-shadow:none;text-align:center;animation:fadeInContainer .8s var(--easing-decelerate) forwards}@keyframes fadeInContainer{0%{opacity:0;transform:translateY(25px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}.header-title{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:10px}h1{font-family:Sen,sans-serif;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;font-weight:700;font-size:3rem;letter-spacing:.2px;text-shadow:0 0 20px var(--accent-glow)}.info-icon{cursor:pointer;color:var(--accent-color);opacity:.8;transition:opacity .2s var(--easing-standard),transform .2s var(--easing-standard),color .2s var(--easing-standard)}.info-icon:hover{opacity:1;transform:scale(1.15) rotate(10deg);color:var(--teal-light)}#settings-btn:hover{transform:scale(1.15) rotate(15deg)}.tagline{font-family:Sen,sans-serif;font-size:1rem;color:#f0f0f0bf;margin-bottom:45px;font-weight:400;opacity:0;transform:translateY(10px);animation:fadeInTagline .7s var(--easing-decelerate) .2s forwards;max-width:650px;margin-left:auto;margin-right:auto}@keyframes fadeInTagline{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.input-area{display:flex;align-items:center;gap:15px;margin-bottom:10px;width:100%;max-width:850px;margin-left:auto;margin-right:auto}#word-input,#apiKeyInput{flex-grow:1;padding:18px 24px;height:60px;border-radius:var(--border-radius);border:1px solid var(--card-border-color);background-color:#ffffff08;color:var(--text-color);font-size:1.1rem;transition:all .25s var(--easing-standard);outline:none}#word-input:focus,#apiKeyInput:focus{border-color:var(--teal-mid);background-color:#ffffff0d;box-shadow:0 0 0 4px rgba(var(--teal-mid-rgb),.2),0 2px 8px #0000001a inset}#word-input::placeholder,#apiKeyInput::placeholder{color:#f0f0f080}#generate-btn,#saveApiKeyBtn{width:60px;height:60px;padding:0;background:var(--accent-gradient);color:var(--bg-color);border:none;border-radius:50%;font-weight:600;cursor:pointer;transition:all .25s var(--easing-standard);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 4px 12px #00000026}#saveApiKeyBtn{width:auto;padding:12px 25px;border-radius:var(--border-radius);height:auto;margin:20px auto 0;display:block}#generate-btn:hover:not(:disabled),#saveApiKeyBtn:hover:not(:disabled){transform:translateY(-2px) scale(1.03);box-shadow:0 7px 20px rgba(var(--teal-mid-rgb),.25),0 0 0 3px rgba(var(--teal-mid-rgb),.15)}#generate-btn:active:not(:disabled),#saveApiKeyBtn:active:not(:disabled){transform:translateY(0) scale(.97);box-shadow:0 3px 10px rgba(var(--teal-mid-rgb),.2)}#generate-btn:disabled,#saveApiKeyBtn:disabled{opacity:.5;cursor:not-allowed;background:var(--card-border-color);box-shadow:none}.btn-icon,.loading-btn-icon{stroke:var(--bg-color)}.loading-btn-icon{animation:spin .8s linear infinite}.results-area{min-height:100px;width:100%;max-width:850px;margin-left:auto;margin-right:auto}.results-area h2{color:var(--accent-color);margin-bottom:20px;font-weight:600;font-size:1.3rem;text-align:center}#synonym-list{list-style:none;padding:0}.synonym-item{display:block;width:100%;max-width:650px;background-color:#ffffff06;padding:16px 22px;margin:0 auto 12px;border-radius:10px;font-size:.95rem;font-weight:400;color:var(--text-color);opacity:0;transform:translateY(15px) scale(.98);animation:fadeInListItem .5s var(--easing-decelerate) forwards;cursor:pointer;transition:background-color .2s var(--easing-standard),color .2s var(--easing-standard),transform .2s var(--easing-standard),border-color .2s var(--easing-standard),box-shadow .2s var(--easing-standard);border:1px solid transparent;position:relative;overflow:hidden;text-align:center}.synonym-item:hover{background-color:rgba(var(--teal-mid-rgb),.15);color:var(--teal-light);border-color:rgba(var(--teal-mid-rgb),.4);transform:translateY(-2px) translate(3px);box-shadow:0 4px 15px rgba(var(--teal-mid-rgb),.1)}.synonym-item:before{content:"";position:absolute;top:0;left:-100%;width:50%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.07),transparent);transition:left .5s var(--easing-standard);transform:skew(-25deg)}.synonym-item:hover:before{left:120%}@keyframes fadeInListItem{0%{opacity:0;transform:translateY(15px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}#synonym-list .synonym-item:nth-child(1){animation-delay:.1s}#synonym-list .synonym-item:nth-child(2){animation-delay:.15s}#synonym-list .synonym-item:nth-child(3){animation-delay:.2s}#synonym-list .synonym-item:nth-child(4){animation-delay:.25s}#synonym-list .synonym-item:nth-child(5){animation-delay:.3s}#synonym-list .synonym-item:nth-child(6){animation-delay:.35s}#synonym-list .synonym-item:nth-child(7){animation-delay:.4s}#synonym-list .synonym-item:nth-child(8){animation-delay:.45s}#synonym-list .synonym-item:nth-child(9){animation-delay:.5s}#synonym-list .synonym-item:nth-child(10){animation-delay:.55s}.loading-spinner{display:none;margin:30px auto;width:40px;height:40px;border:3px solid rgba(var(--teal-mid-rgb),.2);border-top:3px solid var(--teal-mid);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(1.05)}to{transform:rotate(360deg) scale(1)}}.message-box{padding:14px 18px;border-radius:var(--border-radius);margin-top:20px;font-size:.95rem;text-align:left;border:1px solid transparent;max-width:650px;margin-left:auto;margin-right:auto}.error-message{color:var(--error-color);background-color:#f851491a;border-color:#f851494d}.info-message-box{color:var(--text-color);background-color:rgba(var(--teal-mid-rgb),.05);border-color:rgba(var(--teal-mid-rgb),.2)}a{color:var(--accent-color);text-decoration:none;font-weight:500}a:hover{text-decoration:underline;color:var(--teal-light)}.modal-overlay{display:none;position:fixed;z-index:1000;left:0;top:0;margin:0;padding:0;width:100vw;height:100vh;background-color:var(--modal-backdrop-color);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);align-items:center;justify-content:center;animation:fadeInModalBg .3s var(--easing-decelerate) forwards;overflow-y:auto}@keyframes fadeInModalBg{0%{background-color:#0000;opacity:0}to{background-color:var(--modal-backdrop-color);opacity:1}}@keyframes fadeOutModalBg{0%{background-color:var(--modal-backdrop-color);opacity:1}to{background-color:#0000;opacity:0}}.modal-content{background:var(--popover-bg);padding:30px 35px;border:1px solid var(--card-border-color);border-radius:var(--border-radius-large);width:90%;max-width:550px;box-shadow:0 20px 70px #00000080;position:relative;opacity:0;animation:slideInModalContent .4s var(--easing-decelerate) .05s forwards;text-align:left;margin:auto}@keyframes slideInModalContent{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes slideOutModalContent{0%{opacity:1;transform:translateY(0) scale(1)}to{opacity:0;transform:translateY(20px) scale(.98)}}.modal-content h3{color:var(--teal-light);margin-bottom:15px;font-size:1.5rem}.modal-content p{margin-bottom:15px;line-height:1.6;color:#f0f0f0d9}.modal-content p:last-child{margin-bottom:0}.modal-close-btn{position:absolute;top:15px;right:20px;background:none;border:none;font-size:2rem;color:#f0f0f080;cursor:pointer;padding:5px;line-height:1;transition:color .2s var(--easing-standard),transform .2s var(--easing-standard);z-index:10}.modal-close-btn:hover{color:var(--text-color);transform:scale(1.1)}.api-key-modal-input-container{margin-bottom:10px}.api-key-modal-input-container #apiKeyInput{width:100%;margin-bottom:8px}.api-key-modal-input-container label{font-size:.85rem;color:#f0f0f0b3;display:block;text-align:center;margin-bottom:15px}.modal-content .message-box{text-align:center}.definition-popover{display:none;position:absolute;z-index:1010;background-color:var(--popover-bg);border:1px solid var(--card-border-color);border-radius:var(--border-radius);padding:18px 22px;min-width:280px;max-width:350px;box-shadow:0 10px 40px #0006;opacity:0;transform:translate(15px) scale(.97);transition:opacity .25s var(--easing-decelerate),transform .25s var(--easing-decelerate);text-align:left}.definition-popover.visible{display:block;opacity:1;transform:translate(0) scale(1);animation:popoverSlideInRight .25s var(--easing-decelerate)}@keyframes popoverSlideInRight{0%{opacity:0;transform:translate(15px) scale(.97)}to{opacity:1;transform:translate(0) scale(1)}}.definition-popover.popover-left{transform:translate(-15px) scale(.97)}.definition-popover.visible.popover-left{animation:popoverSlideInLeft .25s var(--easing-decelerate);transform:translate(0) scale(1)}@keyframes popoverSlideInLeft{0%{opacity:0;transform:translate(-15px) scale(.97)}to{opacity:1;transform:translate(0) scale(1)}}.definition-popover:after{content:"";position:absolute;top:50%;left:-9px;transform:translateY(-50%);border-width:9px;border-style:solid;border-color:transparent var(--popover-bg) transparent transparent}.definition-popover.popover-left:after{left:auto;right:-9px;border-color:transparent transparent transparent var(--popover-bg)}#popover-word{color:var(--teal-light);font-size:1.2rem;font-weight:600;margin-bottom:10px;padding-bottom:10px;border-bottom:1px solid rgba(var(--teal-mid-rgb),.2)}#popover-definition{font-size:.95rem;line-height:1.65;color:#f0f0f0d9;min-height:30px}#popover-definition-loader{margin:10px auto;width:24px;height:24px;border-width:3px}#popover-error{margin-top:10px;font-size:.85rem}.copy-notification{display:none;position:fixed;bottom:30px;left:50%;transform:translate(-50%);background-color:var(--teal-mid);color:var(--bg-color);padding:10px 20px;border-radius:var(--border-radius);font-size:.9rem;font-weight:500;box-shadow:0 4px 15px rgba(var(--teal-mid-rgb),.2);z-index:2000;opacity:0;transition:opacity .3s var(--easing-standard)}.copy-notification.show{display:block;opacity:1;animation:slideUpNotification .3s var(--easing-decelerate) forwards}@keyframes slideUpNotification{0%{transform:translate(-50%) translateY(20px)}to{transform:translate(-50%) translateY(0)}}@media(max-width:640px){main{padding:15px}h1{font-size:2.2rem}.header-title{gap:8px;margin-bottom:12px}.header-title .info-icon{width:20px;height:20px}.tagline{font-size:.9rem;margin-bottom:25px;max-width:100%}.input-area{flex-direction:column;gap:12px;margin-bottom:25px;max-width:100%}#word-input,#apiKeyInput{width:100%;padding:14px 18px;height:50px;font-size:1rem}#generate-btn{width:100%;height:50px;border-radius:var(--border-radius)}#generate-btn .btn-icon,#generate-btn .loading-btn-icon{width:20px;height:20px}#saveApiKeyBtn{width:100%;height:50px}.results-area{margin-top:25px;min-height:60px;max-width:100%}.results-area h2{font-size:1.15rem;margin-bottom:12px}#synonym-list{padding-left:0}.synonym-item{width:100%;max-width:100%;padding:12px 15px;font-size:.9rem}.synonym-item:hover{transform:translateY(-2px)}.loading-spinner{width:36px;height:36px;margin:25px auto}.message-box{padding:12px 15px;font-size:.9rem;max-width:100%}.modal-overlay{padding:10px}.modal-content{padding:25px 20px;width:100%;max-width:100%;margin:auto 0}.modal-content h3{font-size:1.3rem}.modal-content p{font-size:.9rem;line-height:1.55}.modal-close-btn{top:10px;right:10px;font-size:1.8rem}.definition-popover{padding:14px 18px;min-width:0;width:calc(100vw - 20px);max-width:calc(100vw - 20px);box-sizing:border-box}#popover-word{font-size:1.05rem}#popover-definition{font-size:.85rem;line-height:1.6}#popover-definition-loader{width:20px;height:20px;border-width:2px}.copy-notification{bottom:20px;padding:8px 15px;font-size:.85rem;width:calc(100% - 30px);max-width:300px;box-sizing:border-box}}