:root {
    --rich-black: #001219;
    --midnight-green: #005f73;
    --dark-cyan: #0a9396;
    --tiffany-blue: #94d2bd;
    --vanilla: #e9d8a6;
    --gamboge: #ee9b00;
    --alloy-orange: #ca6702;
    --rust: #bb3e03;
    --rufous: #ae2012;
    --auburn: #9b2226;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--midnight-green) 0%, var(--dark-cyan) 50%, var(--tiffany-blue) 100%);
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="75" cy="75" r="0.3" fill="%23ffffff" opacity="0.1"/><circle cx="50" cy="10" r="0.4" fill="%23ffffff" opacity="0.1"/><circle cx="10" cy="60" r="0.2" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.container {
    padding: 40px 30px;
    background: rgba(233, 216, 166, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    box-shadow: 
        0 20px 60px rgba(0, 18, 25, 0.3),
        0 0 0 1px rgba(148, 210, 189, 0.2);
    width: 100%;
    max-width: 500px;
    border: 1px solid rgba(148, 210, 189, 0.3);
    transition: transform 0.3s ease;
}

.container:hover {
    transform: translateY(-5px);
}

.container form {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    flex-wrap: wrap;
    gap: 15px;
}

.container form input {
    border: 2px solid var(--tiffany-blue);
    border-radius: 15px;
    outline: none;
    background: rgba(255, 255, 255, 0.9);
    color: var(--rich-black);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.container form :where(input,button) {
    flex-grow: 1;
    flex-shrink: 0;
    padding: 18px 25px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.container form input:focus {
    border-color: var(--dark-cyan);
    box-shadow: 
        0 0 0 3px rgba(10, 147, 150, 0.2),
        0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.container form input::placeholder {
    color: var(--midnight-green);
    opacity: 0.6;
}

.container button {
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: linear-gradient(135deg, var(--gamboge), var(--alloy-orange));
    padding: 18px 30px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    border-radius: 15px;
    cursor: pointer;
    color: white;
    box-shadow: 0 4px 15px rgba(202, 103, 2, 0.3);
    min-width: 120px;
}

.container button:hover {
    background: linear-gradient(135deg, var(--alloy-orange), var(--rust));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(202, 103, 2, 0.4);
}

.container button:active {
    transform: translateY(0);
}

.container .word-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 25px 0;
    padding: 20px 0;
    border-bottom: 2px solid var(--tiffany-blue);
}

.container .word-info h2 {
    font-size: 2.5em;
    font-weight: 700;
    color: var(--rich-black);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
}

.container .word-info p {
    background: linear-gradient(135deg, var(--dark-cyan), var(--tiffany-blue));
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
    box-shadow: 0 3px 10px rgba(10, 147, 150, 0.3);
}

.container .blockquote {
    border-left: 5px solid var(--dark-cyan);
    padding-left: 20px;
    margin-top: 15px;
    background: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.container .blockquote:hover {
    transform: translateX(5px);
}

.container .blockquote h3 {
    font-weight: 600;
    color: var(--midnight-green);
    margin-bottom: 10px;
    font-size: 1.1em;
}

.container h1 {
    margin-bottom: 10px;
    color: var(--rich-black);
    font-size: 2.5em;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, var(--midnight-green), var(--dark-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.container .word-details {
    display: none;
    animation: fadeIn 0.6s ease;
}

.container .word-details.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.errTxt {
    background: linear-gradient(135deg, var(--rust), var(--auburn));
    color: white;
    font-size: 16px;
    font-weight: 500;
    margin-top: 20px;
    padding: 15px 20px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(174, 32, 18, 0.3);
    text-align: center;
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.errTxt:empty {
    margin-top: 0;
    display: none;
}

/* Additional styles for enhanced UX */
.part-of-speech {
    display: inline-block;
    background: linear-gradient(135deg, var(--gamboge), var(--alloy-orange));
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.example {
    font-style: italic;
    color: var(--midnight-green);
    opacity: 0.8;
    margin-top: 10px;
    padding: 10px;
    background: rgba(148, 210, 189, 0.2);
    border-radius: 8px;
    border-left: 3px solid var(--tiffany-blue);
}

.synonyms, .antonyms {
    margin-top: 20px;
}

.synonyms h4, .antonyms h4 {
    color: var(--midnight-green);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 1.1em;
}

.synonym-list, .antonym-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.synonym, .antonym {
    background: linear-gradient(135deg, var(--tiffany-blue), rgba(148, 210, 189, 0.8));
    color: var(--rich-black);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid rgba(148, 210, 189, 0.5);
}

.synonym:hover, .antonym:hover {
    background: var(--dark-cyan);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 147, 150, 0.3);
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--tiffany-blue);
    border-top: 4px solid var(--gamboge);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 480px) {
    .container {
        padding: 25px 20px;
        margin: 10px;
    }
    
    .container form {
        flex-direction: column;
    }
    
    .container .word-info {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .container .word-info h2 {
        font-size: 2em;
    }
}