:root {
    --primary: #4361ee;
    --secondary: #3a0ca3;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #fca311;
    --light: #000000;
    --dark: #212529;
    --gray: #6c757d;
    --rounded: 12px;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

body {
    background: linear-gradient(135deg, #f7f7f7 0%, #daf1d7 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: var(--light);
}

.container {
    width: 100%;
    max-width: 1400px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--rounded);
    box-shadow: var(--shadow);
    overflow: hidden;
    padding: 30px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    background: linear-gradient(to right, #020aff, #020aff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    color: var(--light);
    opacity: 0.9;
}

/* Menu styles */
.menu {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    gap: 10px;
}

.menu-btn {
    padding: 12px 24px;
    background: linear-gradient(to right, #020aff, #020aff);
    border: none;
    border-radius: 25px;
    width: 200px;
    color: #000000;
    font-size: 1rem;
    font-weight: 1000;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.menu-btn.active {
    background: linear-gradient(to right, var(--primary), var(--success));
    /* color: white; */
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
} 

.menu-btn:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.8);
}

/* Content sections */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* Results section */
.content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
}

@media (max-width: 900px) {
    .content {
        grid-template-columns: 1fr;
    }
}

.model-selection {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--rounded);
    padding: 20px;
    box-shadow: var(--shadow);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--light);
    text-align: center;
}

.models-container {
    display: fixed;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 500px) {
    .models-container {
        grid-template-columns: 1fr;
    }
}

.model-checkbox {
    display: none;
}

.model-label {
    display: block;
    padding: 12px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--light);
    box-shadow: var(--shadow);
}

.model-label:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
}

.model-checkbox:checked + .model-label {
    background: var(--primary);
    color: white;
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
}

.predict-btn {
    width: 100%;
    padding: 16px;
    margin-top: 25px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    border: none;
    border-radius: 50px;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
}

.predict-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.6);
}

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

.results {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--rounded);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

@media (max-width: 600px) {
    .metrics {
        grid-template-columns: 1fr;
    }
}


.metric-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--rounded);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.metric-title {
    font-size: 1rem;
    margin-bottom: 10px;
    color: var(--light);
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
    background: white;
    border-radius: var(--rounded);
    padding: 15px;
    box-shadow: var(--shadow);
}

.loader {
    display: none;
    text-align: center;
    padding: 30px;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto 20px;
}

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

.results-content {
    display: none;
}

/* Prediction form styles */
.prediction-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .prediction-form {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--light);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    color: var(--light);
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.4);
}

.prediction-result {
    margin-top: 30px;
    padding: 20px;
    border-radius: var(--rounded);
    text-align: center;
    display: none;
    box-shadow: var(--shadow);
}

.result-success {
    background: rgba(76, 201, 240, 0.2);
    border: 1px solid var(--success);
    color: var(--light);
}

.result-danger {
    background: rgba(247, 37, 133, 0.2);
    border: 1px solid var(--danger);
    color: var(--light);
}

.result-warning {
    background: rgba(252, 163, 17, 0.2);
    border: 1px solid var(--warning);
    color: var(--light);
}

.result-value {
    font-size: 2rem;
    font-weight: 700;
    margin: 15px 0;
    color: var(--primary);
}

/* Training form styles */
.training-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .training-form {
        grid-template-columns: 1fr;
    }
}

.file-upload {
    border: 2px dashed rgba(0, 0, 0, 0.3);
    border-radius: var(--rounded);
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.8);
}

.file-upload:hover {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.9);
}

.file-upload i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: rgba(0, 0, 0, 0.5);
}

.param-group {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--rounded);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.param-title {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--light);
}

.footer {
    margin-top: 30px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.7;
    color: var(--light);
}

/* Print styles */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .container {
        box-shadow: none;
        max-width: 100%;
        padding: 15px;
    }
    
    .menu-btn, .predict-btn {
        display: none;
    }
    
    .content-section {
        display: block !important;
    }
}