:root {
    --bg-color: #0d1117;
    --text-color: #e6edf3;
    --primary-color: #58a6ff;
    --primary-hover: #3182ce;
    --panel-bg: rgba(22, 27, 34, 0.7);
    --panel-border: rgba(255, 255, 255, 0.1);
    
    --positive-color: #3fb950;
    --negative-color: #f85149;
    --neutral-color: #8b949e;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

/* Dynamic glowing background blobs */
.background-globes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.globe {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
    animation: float 10s infinite alternate ease-in-out;
}

.globe-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #58a6ff33, transparent 70%);
    top: -100px;
    left: -100px;
}

.globe-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #8a2be233, transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 50px); }
}

.container {
    width: 100%;
    max-width: 800px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    z-index: 1;
}

header {
    text-align: center;
    animation: fadeInDown 0.8s ease-out forwards;
}

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

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, #58a6ff, #8a2be2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: #8b949e;
    font-size: 1.1rem;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.8s ease-out forwards;
}

.glass-panel:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
}

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

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.input-group label {
    font-weight: 500;
    color: #c9d1d9;
}

textarea {
    width: 100%;
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 1rem;
    color: var(--text-color);
    font-size: 1rem;
    resize: vertical;
    transition: all 0.3s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.submit-btn {
    width: 100%;
    background: linear-gradient(90deg, #58a6ff, #3182ce);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    box-shadow: 0 10px 20px -10px #58a6ff;
    transform: translateY(-2px);
}

.submit-btn:active {
    transform: translateY(0);
}

.loader {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Result Card UI */
.result-container {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--panel-border);
    animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.result-container h3 {
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: #e6edf3;
}

.result-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(13, 17, 23, 0.5);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--panel-border);
    transition: all 0.3s ease;
}

.sentiment-icon {
    font-size: 3rem;
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    transition: all 0.5s ease;
}

.sentiment-details {
    flex-grow: 1;
}

.sentiment-label {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

/* Dynamic UI Colors based on sentiment prediction */
.is-positive .sentiment-label { color: var(--positive-color); }
.is-negative .sentiment-label { color: var(--negative-color); }
.is-neutral .sentiment-label { color: var(--neutral-color); }

.is-positive .sentiment-icon { 
    box-shadow: 0 0 25px rgba(63, 185, 80, 0.3); 
    background: rgba(63, 185, 80, 0.1);
}
.is-negative .sentiment-icon { 
    box-shadow: 0 0 25px rgba(248, 81, 73, 0.3); 
    background: rgba(248, 81, 73, 0.1);
}

.confidence-bar-container {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.confidence-bar {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: width 1s cubic-bezier(0.1, 0.8, 0.2, 1);
}

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

.confidence-text {
    font-size: 0.9rem;
    color: #8b949e;
    text-align: right;
}

/* Footer layout */
footer {
    text-align: center;
    margin-top: 1rem;
    animation: fadeInUp 0.8s ease-out forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.tech-stack {
    display: inline-flex;
    gap: 1rem;
    background: var(--panel-bg);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--panel-border);
    font-size: 0.9rem;
    color: #8b949e;
}

.tech-stack span {
    color: #c9d1d9;
    font-weight: 500;
}