/* Modern Diabetes Prediction App Styles */
:root {
    /* Light Theme Variables */
    --primary-color: #5e60ce;
    --primary-gradient: linear-gradient(135deg, #5e60ce 0%, #6930c3 100%);
    --secondary-color: #2ec4b6;
    --danger-color: #ff5a5f;
    --warning-color: #ffca3a;
    --bg-color: #f8f9fd;
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-color: #2b2d42;
    --text-muted: #64748b;
    --border-color: rgba(0, 0, 0, 0.08);
    --card-shadow: 0 10px 30px rgba(58, 59, 69, 0.1);
    --input-bg: rgba(255, 255, 255, 0.8);
    --input-border: rgba(94, 96, 206, 0.2);
    --input-focus-shadow: rgba(94, 96, 206, 0.25);
    --navbar-bg: var(--primary-gradient);
    --navbar-text: #ffffff;
    --card-border-radius: 1.25rem;
    --button-border-radius: 12px;
    --input-border-radius: 12px;
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --primary-color: #5e60ce;
    --primary-gradient: linear-gradient(135deg, #5e60ce 0%, #6930c3 100%);
    --secondary-color: #2ec4b6;
    --danger-color: #ff5a5f;
    --warning-color: #ffca3a;
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.8);
    --text-color: #f8fafc;
    --text-muted: #cbd5e1;
    --border-color: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --input-bg: rgba(30, 41, 59, 0.7);
    --input-border: rgba(94, 96, 206, 0.3);
    --input-focus-shadow: rgba(94, 96, 206, 0.4);
    --navbar-bg: rgba(15, 23, 42, 0.9);
    --navbar-text: #ffffff;
}

body {
    font-family: 'Inter', 'Nunito', 'Segoe UI', Roboto, Arial, sans-serif;
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 40% 20%, rgba(94, 96, 206, 0.1) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(46, 196, 182, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 50%, rgba(105, 48, 195, 0.1) 0px, transparent 50%);
    background-size: 100% 100%;
    background-attachment: fixed;
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.5s ease, color 0.5s ease;
}

.main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Navbar Styling */
.navbar {
    background: var(--navbar-bg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.5s ease;
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--navbar-text);
    letter-spacing: -0.5px;
}

.nav-link {
    font-weight: 600;
    transition: all 0.3s ease;
    color: var(--navbar-text);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    margin: 0 5px;
}

.nav-link:hover {
    transform: translateY(-2px);
    background-color: rgba(255, 255, 255, 0.15);
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Theme Toggle */
.theme-toggle-wrapper {
    display: flex;
    align-items: center;
    margin-left: 15px;
}

.theme-toggle {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.theme-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.3);
    transition: 0.4s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

input:checked + .toggle-slider {
    background-color: var(--secondary-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(30px);
}

.toggle-icon {
    margin-left: 8px;
    color: var(--navbar-text);
    font-size: 1.2rem;
}

/* Card Styling */
.app-card {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.5s ease, box-shadow 0.5s ease;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.app-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(58, 59, 69, 0.2);
}

.app-header {
    margin-bottom: 2.5rem;
}

.app-header h1 {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.parameter-card {
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    background-color: var(--card-bg);
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.parameter-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.parameter-card .card-body {
    padding: 1.5rem;
}

.parameter-icon {
    color: var(--primary-color);
    font-size: 1.2rem;
    background: rgba(94, 96, 206, 0.1);
    padding: 8px;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon {
    color: var(--primary-color);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.info-icon:hover {
    transform: scale(1.2);
}

/* Form Controls */
.form-control, .form-select {
    border-radius: var(--input-border-radius);
    padding: 0.85rem 1rem;
    border: 2px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
    font-size: 1rem;
    /* Remove scrollbars */
    overflow: hidden !important;
    -ms-overflow-style: none !important; /* IE and Edge */
    scrollbar-width: none !important; /* Firefox */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* Hide scrollbar for Chrome, Safari and Opera */
.form-control::-webkit-scrollbar, .form-select::-webkit-scrollbar, input::-webkit-scrollbar, textarea::-webkit-scrollbar, select::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

/* Input group styling for calculator button */
.input-group {
    border-radius: var(--input-border-radius);
    overflow: hidden;
}

.input-group .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border: 2px solid var(--primary-color);
    border-left: none;
    background-color: var(--card-bg);
    color: var(--primary-color);
    padding: 0.85rem 1rem;
    transition: all 0.3s ease;
}

.input-group .btn:hover {
    background: var(--primary-gradient);
    color: white;
}

.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 0.25rem var(--input-focus-shadow);
    border-color: var(--primary-color);
    outline: none;
}

.form-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--text-color);
}

.predict-button {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 1rem 2rem;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: var(--button-border-radius);
    box-shadow: 0 10px 20px rgba(94, 96, 206, 0.3);
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.predict-button::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    transform: translateY(-100%);
    transition: transform 0.6s ease;
}

.predict-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(94, 96, 206, 0.4);
}

.predict-button:hover::after {
    transform: translateY(0);
}

.predict-button:active {
    transform: translateY(0);
    box-shadow: 0 5px 15px rgba(94, 96, 206, 0.4);
}

.result-card {
    background: var(--card-bg);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-color);
    padding: 2rem;
    box-shadow: var(--card-shadow);
    animation: fadeIn 0.5s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.result-title {
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.result-diabetic {
    color: var(--danger-color);
    font-size: 2rem;
    font-weight: 700;
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: var(--button-border-radius);
    background-color: rgba(255, 90, 95, 0.1);
}

.result-non-diabetic {
    color: var(--secondary-color);
    font-size: 2rem;
    font-weight: 700;
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: var(--button-border-radius);
    background-color: rgba(46, 196, 182, 0.1);
}

.history-container {
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
}

.history-item {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    margin-bottom: 1rem;
    padding: 1.25rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.history-item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.resource-card {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    height: 100%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.resource-card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.resource-card h5 {
    color: var(--text-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 1.5rem 0;
    margin-top: auto;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.footer a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--secondary-color);
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.pulse {
    animation: pulse 2s infinite;
}

.float {
    animation: float 6s infinite ease-in-out;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--primary-color);
}

/* Custom tooltip */
.tooltip {
    font-family: 'Inter', 'Nunito', sans-serif;
    font-size: 0.85rem;
}

.tooltip .tooltip-inner {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.5rem 0.75rem;
    max-width: 200px;
}

.bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow::before, 
.bs-tooltip-top .tooltip-arrow::before {
    border-top-color: var(--border-color);
}

@media (max-width: 768px) {
    .app-card {
        padding: 1.5rem;
    }
    
    .parameter-card {
        margin-bottom: 1rem;
    }
    
    .predict-button {
        width: 100%;
        padding: 0.85rem;
    }
    
    .navbar-brand {
        font-size: 1.3rem;
    }
}

/* Glucose Range Styling */
.glucose-ranges {
    margin-top: 10px;
}

.glucose-ranges .ranges {
    margin-bottom: 4px;
}

.glucose-ranges .normal,
.glucose-ranges .prediabetic,
.glucose-ranges .diabetic {
    font-size: 0.8rem;
    transition: all 0.3s ease;
    padding: 2px 6px;
    border-radius: 4px;
}

.glucose-ranges .normal {
    color: var(--secondary-color);
}

.glucose-ranges .prediabetic {
    color: var(--warning-color);
}

.glucose-ranges .diabetic {
    color: var(--danger-color);
}

.glucose-ranges .highlighted {
    font-weight: bold;
    transform: scale(1.1);
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.glucose-ranges .normal.highlighted {
    background-color: rgba(46, 196, 182, 0.15);
}

.glucose-ranges .prediabetic.highlighted {
    background-color: rgba(255, 202, 58, 0.15);
}

.glucose-ranges .diabetic.highlighted {
    background-color: rgba(255, 90, 95, 0.15);
}

/* Glucose Value Indicator Styling */
.glucose-value-indicator {
    position: absolute;
    z-index: 10;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.glucose-value-indicator::after {
    content: attr(title);
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.glucose-value-indicator:hover::after {
    opacity: 1;
}