:root {
    --primary-color: #2e7eed;
    --primary-dark: #1a68d3;
    --secondary-color: #f0f7ff;
    --dark-color: #333;
    --light-color: #f9f9f9;
    --positive-color: #4caf50;
    --negative-color: #f44336;
    --neutral-color: #757575;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.logo h1 {
    color: var(--dark-color);
    font-size: 2.5rem;
    letter-spacing: -1px;
}

.logo h1 span {
    color: var(--primary-color);
}

.logo p {
    color: var(--neutral-color);
    font-size: 1.1rem;
}

/* Main Content Layout */
main {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 20px;
}

/* Analysis Panel Styles */
.analysis-panel {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px var(--shadow-color);
    overflow: hidden;
}

.input-section {
    padding: 25px;
}

.input-section h2 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.input-section p {
    margin-bottom: 15px;
    color: var(--neutral-color);
}

textarea {
    width: 100%;
    height: 150px;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    transition: border-color 0.3s;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(46, 126, 237, 0.1);
}

.controls {
    display: flex;
    margin-top: 15px;
    gap: 15px;
    align-items: flex-end;
}

/* Add extra breathing room under controls for inline info */
.input-section {
    padding-bottom: 8px;
}

/* Inline info banner styles */
.info-banner {
    margin: 10px 25px 0 25px;
    padding: 12px 14px;
    border-radius: 6px;
    background: #fff8e1; /* soft amber */
    border: 1px solid #ffe0a3;
    color: #6b4f00;
    box-shadow: 0 2px 6px var(--shadow-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    white-space: pre-line;
}
.info-banner.hidden { display: none; }
.info-close {
    background: transparent;
    border: none;
    font-size: 18px;
    color: #6b4f00;
    cursor: pointer;
}

.model-selection {
    flex-grow: 1;
}

.model-selection label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: var(--neutral-color);
}

select, button {
    padding: 12px 15px;
    border-radius: 6px;
    font-size: 1rem;
}

/* Ensure select and button align perfectly on the same row */
.controls select,
.controls button {
    height: 44px;
}

select {
    border: 1px solid var(--border-color);
    background: white;
    width: 100%;
    cursor: pointer;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    flex-grow: 1;
    transition: background-color 0.3s;
    font-weight: 500;
}

button:hover {
    background-color: var(--primary-dark);
}

button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

/* Result Section Styles */
.result-section {
    padding: 25px;
    background-color: var(--secondary-color);
}

.result-section h2 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.prompt {
    color: var(--neutral-color);
    font-style: italic;
}

.result-card {
    background: white;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 15px;
    box-shadow: 0 2px 5px var(--shadow-color);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.sentiment-label {
    font-size: 1.2rem;
    font-weight: 700;
}

.positive {
    color: var(--positive-color);
}

.negative {
    color: var(--negative-color);
}

.confidence-meter {
    background-color: #eee;
    border-radius: 10px;
    height: 10px;
    width: 100%;
    margin: 10px 0;
    overflow: hidden;
}

.confidence-bar {
    height: 100%;
    border-radius: 10px;
    transition: width 0.5s ease-in-out;
}

.confidence-bar.positive {
    background-color: var(--positive-color);
}

.confidence-bar.negative {
    background-color: var(--negative-color);
}

.result-text {
    margin: 15px 0;
    line-height: 1.6;
}

.model-type {
    font-size: 0.85rem;
    color: var(--neutral-color);
    font-style: italic;
    margin-top: 10px;
}

.important-words {
    margin-top: 15px;
}

.important-words h4 {
    font-size: 0.95rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.word-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.word-chip {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.85rem;
    background-color: #f5f5f5;
    color: var(--dark-color);
    font-weight: 500;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    cursor: default;
    transition: all 0.2s;
}

.word-chip.positive {
    background-color: rgba(76, 175, 80, 0.15);
    color: var(--positive-color);
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.word-chip.negative {
    background-color: rgba(244, 67, 54, 0.15);
    color: var(--negative-color);
    border: 1px solid rgba(244, 67, 54, 0.3);
}

/* Style for negated words */
.word-chip[style*="line-through"].positive {
    background-color: rgba(76, 175, 80, 0.05);
    border: 1px dashed rgba(76, 175, 80, 0.3);
}

.word-chip[style*="line-through"].negative {
    background-color: rgba(244, 67, 54, 0.05);
    border: 1px dashed rgba(244, 67, 54, 0.3);
}

/* History Panel Styles */
.history-panel {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 4px 15px var(--shadow-color);
    max-height: 600px;
    overflow-y: auto;
}

.history-panel h2 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.no-history {
    color: var(--neutral-color);
    font-style: italic;
}

.history-item {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.history-item:last-child {
    border-bottom: none;
}

.history-sentiment {
    font-weight: 700;
    margin-bottom: 5px;
}

.history-text {
    color: var(--dark-color);
    margin-bottom: 5px;
    word-break: break-word;
}

.history-model {
    font-size: 0.8rem;
    color: var(--neutral-color);
}

/* Footer Styles */
footer {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    color: var(--neutral-color);
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer-note {
    margin-top: 5px;
    font-size: 0.8rem;
}

/* Responsive Design */
@media (max-width: 900px) {
    main {
        grid-template-columns: 1fr;
    }
    
    .history-panel {
        max-height: 400px;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
    
    .controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .model-selection, button {
        width: 100%;
    }
}

/* History Panel Header */
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.secondary-btn {
    background-color: #f5f5f5;
    color: var(--dark-color);
    font-size: 0.85rem;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background-color: #e0e0e0;
}

/* Add this to your existing main.css */
.no-words {
    color: var(--neutral-color);
    font-style: italic;
    font-size: 0.85rem;
}

.word-chip {
    transition: transform 0.2s, box-shadow 0.2s;
}

.word-chip:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}