/* Custom CSS for HealthCalc Hub */

/* Global Styles */
:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Navigation Styles */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #ffc107 !important;
}

/* Card Styles */
.card {
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1) !important;
}

.card-header {
    border-bottom: none;
    font-weight: 600;
}

/* Form Styles */
.form-label {
    font-weight: 500;
    color: var(--dark-color);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Button Styles */
.btn {
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

/* Result Display Styles */
.result-container {
    background: var(--light-color);
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
    margin-top: 1rem;
}

.result-value {
    font-size: 2rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

.result-category {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.result-interpretation {
    font-size: 1rem;
    color: #6c757d;
    margin-bottom: 0;
}

/* Health Status Colors */
.status-normal {
    color: var(--success-color) !important;
    border-left-color: var(--success-color) !important;
}

.status-warning {
    color: var(--warning-color) !important;
    border-left-color: var(--warning-color) !important;
}

.status-danger {
    color: var(--danger-color) !important;
    border-left-color: var(--danger-color) !important;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Section Spacing */
section {
    padding: 4rem 0;
}

/* Hero Section */
#home {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 300px;
    margin: 1rem 0;
}

/* Language Toggle */
#langToggle {
    border-radius: 20px;
    transition: all 0.3s ease;
}

#langToggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .lead {
        font-size: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    section {
        padding: 2rem 0;
    }
    
    .result-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
}

/* Error Message Styles */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 5px;
    padding: 0.75rem;
    margin-top: 1rem;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    border-radius: 5px;
    padding: 0.75rem;
    margin-top: 1rem;
}

/* Smooth Transitions */
* {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}

/* Footer Styles */
footer {
    margin-top: auto;
}

footer a:hover {
    color: var(--warning-color) !important;
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(45deg, var(--primary-color), var(--info-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-soft {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.border-radius-lg {
    border-radius: 15px;
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.5s ease forwards;
}

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

.slide-in-left {
    transform: translateX(-100px);
    opacity: 0;
    animation: slideInLeft 0.6s ease forwards;
}

@keyframes slideInLeft {
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide-in-right {
    transform: translateX(100px);
    opacity: 0;
    animation: slideInRight 0.6s ease forwards;
}

@keyframes slideInRight {
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Profile Setup Section Styles */
#profile-setup {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

#profile-setup .card {
    border: none;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

#profile-setup .card-header {
    background: linear-gradient(135deg, var(--primary-color), #7209b7);
    padding: 2rem;
    border-bottom: none;
}

#profile-setup .card-body {
    padding: 2rem;
}

#profile-setup .form-control, 
#profile-setup .form-select {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

#profile-setup .form-control:focus, 
#profile-setup .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.1);
}

#profile-setup .form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.75rem;
}

#profile-setup .btn {
    border-radius: 10px;
    padding: 0.75rem 2rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

#profile-setup .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Auto Fill Button Styles */
.card-header .btn-outline-light:hover,
.card-header .btn-outline-dark:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Profile Status Alert Styles */
#profile-status .alert {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

#profile-status .alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    border-left: 4px solid #28a745;
}

#profile-status .alert-info {
    background: linear-gradient(135deg, #d1ecf1, #bee5eb);
    border-left: 4px solid #17a2b8;
}

/* Auto Fill Animation */
.auto-fill-highlight {
    background-color: #e3f2fd !important;
    transition: background-color 1s ease;
}

/* support Section Styles */
#support {
    background: linear-gradient(135deg, rgba(255,245,235,0.9), rgba(250,250,255,0.9));
    border: 1px solid rgba(13,110,253,0.08);
    box-shadow: 0 8px 30px rgba(13,110,253,0.06);
    border-radius: 14px;
    margin: 2rem auto;
    padding: 1.5rem 1rem;
}

#support h5 {
    font-weight: 700;
    color: var(--dark-color);
}

#support p {
    color: #495057;
}

#support code#usdt-address {
    background: linear-gradient(90deg, #ffffff, #f1f7ff);
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid rgba(0,0,0,0.06);
    font-weight: 600;
}

#support .d-flex a img {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    width: auto;
    height: 100px;
    border-radius: 10px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

#support .d-flex a img:hover {
    transform: scale(1.05) translateY(-4px);
    box-shadow: 0 12px 30px rgba(13,110,253,0.12);
}

#support #copy-usdt {
    border-radius: 8px;
    padding: 6px 10px;
}

@media (max-width: 576px) {
    #support .d-flex a img { height: 80px; }
    #support { padding: 1rem; }
}

/* Support trigger text-buttons */
.donate-trigger {
    min-width: 140px;
    border-radius: 12px;
    padding: 14px 18px;
    font-weight: 700;
    color: var(--dark-color);
    background: linear-gradient(180deg, #ffffff, #f8fbff);
    border: 1px solid rgba(13,110,253,0.06);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.donate-trigger:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(13,110,253,0.12);
    background: linear-gradient(180deg, #fffef6, #eef7ff);
}

@media (max-width: 576px) {
    .donate-trigger { min-width: 120px; padding: 10px 12px; }
}