*{margin:0;padding:0;box-sizing:border-box}body{font-family:Cairo,sans-serif;background:#f0f5fe;color:#1e2b3c;line-height:1.6;transition:all .3s ease}body.dark-mode{background:#1a2632;color:#f0f4fa}:root{--soft-blue: #7a9eb3;--soft-blue-light: #b0d0e0;--soft-blue-dark: #4a6f84;--shadow: 0 8px 20px rgba(0,20,40,.08);--gold: #ffd966}body.dark-mode .tool-card,body.dark-mode .converter-panel,body.dark-mode .hero,body.dark-mode footer,body.dark-mode .content-page{background:#2a3645;color:#e0e9f0;border-color:#3a4a5a}body.dark-mode .tool-card p,body.dark-mode .hero p,body.dark-mode .footer-section p,body.dark-mode .footer-section a,body.dark-mode .content-text{color:#d0e0f0}header{background:#fff;box-shadow:var(--shadow);position:sticky;top:0;z-index:100;padding:.7rem 2rem;transition:all .3s}body.dark-mode header{background:#1e2b3c}nav{display:flex;justify-content:space-between;align-items:center;max-width:1400px;margin:0 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2rem}.hero{background:linear-gradient(145deg,#d8e6f2,#ecf3fa);border-radius:50px;padding:3rem;margin-bottom:3rem;text-align:center}.hero h1{font-size:2.5rem;color:#1e3b4c}body.dark-mode .hero h1{color:#e0e9f0}.hero p{font-size:1.2rem;color:#3a5e72;margin:1rem 0}.search-box{max-width:500px;margin:2rem auto}#search-input{width:100%;padding:1rem 2rem;border:2px solid var(--soft-blue-light);border-radius:60px;font-size:1.1rem;font-family:Cairo,sans-serif;transition:all .3s}#search-input:focus{outline:none;border-color:var(--soft-blue);box-shadow:0 0 0 4px #7a9eb333}.quick-tools{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin:2rem 0}.quick-tool-btn{background:#fff;border:none;padding:.8rem 1.8rem;border-radius:40px;font-weight:600;color:#1e3b4c;box-shadow:var(--shadow);cursor:pointer;transition:all .3s;display:inline-flex;align-items:center;gap:10px;font-size:1rem;min-height:44px}body.dark-mode 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textarea:focus{outline:none;border-color:var(--soft-blue)}#toast-container{position:fixed;bottom:20px;right:20px;z-index:1000}.toast{background:#4a6f84e6;backdrop-filter:blur(10px);color:#fff;padding:1rem 2rem;border-radius:50px;margin-top:.5rem;box-shadow:0 5px 15px #0003;animation:slideInRight .3s ease,fadeOut .3s ease 3.7s forwards;max-width:300px}.toast.error{background:#c44545e6}@keyframes slideInRight{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeOut{to{opacity:0;transform:translate(100%)}}footer{background:#fff;padding:3rem 2rem 1rem;margin-top:4rem;border-radius:50px 50px 0 0}.footer-content{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2.5rem}.footer-section h4{color:#1e3b4c;margin-bottom:1.5rem;font-size:1.3rem;border-right:4px solid var(--soft-blue);padding-right:1rem}body.dark-mode .footer-section h4{color:#e0e9f0}.footer-section p,.footer-section a{color:#4a687c;text-decoration:none;display:block;margin-bottom:.6rem;transition:.3s}.footer-section a:hover{color:var(--soft-blue);padding-right:5px}.copyright{text-align:center;margin-top:2rem;padding-top:2rem;border-top:1px solid #cbdbe8;color:#4a687c}@media screen and (max-width: 768px){header{padding:.5rem 1rem}nav{flex-direction:row;flex-wrap:wrap;gap:.5rem}.logo{font-size:1.4rem}.logo i{font-size:1.6rem}.nav-links{order:3;width:100%;justify-content:center;gap:.6rem;margin:.3rem 0 0}.nav-links a{font-size:.85rem;min-height:36px}.user-actions{gap:.3rem}.btn{padding:.3rem .8rem;font-size:.85rem;min-height:36px}#loginBtn span,#signupBtn span{display:none}#darkModeToggle{font-size:1.4rem;min-height:36px;min-width:36px}.hero{padding:1.5rem!important}.hero h1{font-size:1.8rem!important}.hero p{font-size:1rem!important}.tool-card{padding:1.2rem!important}.tool-icon{font-size:2rem!important}.converter-panel{padding:1.2rem!important}.options-area{flex-direction:column;align-items:stretch}.options-area select,.options-area input{width:100%}.action-btn{padding:.8rem}.preview-item{width:120px}.footer-content{grid-template-columns:1fr 1fr!important;gap:1rem}}@media screen and (max-width: 400px){.footer-content{grid-template-columns:1fr!important}.preview-item{width:100%}}