/* Modern Dark Theme with Bootstrap 5 */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-gradient: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    --dark-bg: #0d1117;
    --dark-surface: #161b22;
    --dark-border: #30363d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    position: relative;
}

/* Add subtle animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 107, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(78, 205, 196, 0.3) 0%, transparent 50%);
    animation: gradientShift 10s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

/* Text gradient for headings */
.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* Glass morphism effect */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Custom button styles */
.btn-primary {
    background: var(--accent-gradient);
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    background: var(--accent-gradient);
    border: none;
}

/* Microphone button styling */
.microphone-btn {
    width: 100px;
    height: 100px;
    background: var(--accent-gradient);
    border: none !important;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

.microphone-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 107, 107, 0.4);
}

.microphone-btn.recording {
    animation: pulse 1s infinite;
    box-shadow: 0 0 50px rgba(255, 107, 107, 0.8);
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 0 30px rgba(255, 107, 107, 0.4);
    }
    50% { 
        transform: scale(1.1);
        box-shadow: 0 0 50px rgba(255, 107, 107, 0.8);
    }
}

/* Card enhancements */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-header {
    background: var(--accent-gradient);
    border-bottom: 1px solid var(--glass-border);
}

/* Form controls */
.form-control:focus {
    border-color: transparent;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background-color: var(--dark-surface);
    color: var(--text-primary);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

/* Alert customizations */
.alert {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.alert-success {
    background: rgba(78, 205, 196, 0.1);
    border-color: rgba(78, 205, 196, 0.3);
    color: #4ecdc4;
}

.alert-danger {
    background: rgba(255, 107, 107, 0.1);
    border-color: rgba(255, 107, 107, 0.3);
    color: #ff6b6b;
}

.alert-info {
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.3);
    color: white;
}

/* Progress bar */
.progress {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
}

.progress-bar {
    background: var(--accent-gradient);
}

/* Badge styling */
.badge {
    background: var(--accent-gradient) !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Loading spinner customization */
.spinner-border {
    border-color: rgba(255, 255, 255, 0.1);
    border-top-color: #4ecdc4;
}

/* Feature icons on landing page */
.display-6 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .display-3 {
        font-size: 2rem;
    }
    
    .microphone-btn {
        width: 80px;
        height: 80px;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .btn-lg {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }
    
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .card {
        margin: 0 10px;
    }
    
    .lead {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .display-3 {
        font-size: 1.75rem;
    }
    
    .btn-lg {
        font-size: 0.9rem;
        padding: 0.6rem 1.5rem;
    }
    
    .microphone-btn {
        width: 70px;
        height: 70px;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .fs-1 {
        font-size: 2rem !important;
    }
    
    .row {
        margin: 0 -5px;
    }
    
    .col-md-4 {
        padding: 0 5px;
        margin-bottom: 1rem;
    }
}

/* Smooth transitions for all interactive elements */
* {
    transition: all 0.2s ease;
}

/* Hover effects for interactive elements */
.btn:hover, .card:hover, .form-control:hover {
    transform: translateY(-1px);
}

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

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

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

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #ff8080, #60e6dc);
}

/* Fix Bootstrap dark mode compatibility */
[data-bs-theme="dark"] .btn-primary {
    --bs-btn-bg: transparent;
    --bs-btn-border-color: transparent;
    --bs-btn-hover-bg: transparent;
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-bg: transparent;
    --bs-btn-active-border-color: transparent;
}

/* Override some Bootstrap styles for better integration */
.btn-outline-light:hover {
    background: var(--glass-bg);
    border-color: var(--glass-border);
}

.text-white-50 {
    color: var(--text-secondary) !important;
}

/* Landing page feature icons animation */
.col-md-4 {
    transition: transform 0.3s ease;
}

.col-md-4:hover {
    transform: translateY(-5px);
}

/* Workout Cards Styling */
.workout-card {
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background: linear-gradient(145deg, #1a1a1a, #1a1a1a);
    border-radius: 20px;
}

.workout-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-gradient);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.75);
}

.workout-card .card-icon {
    transition: all 0.3s ease;
}

.workout-card:hover .card-icon {
    transform: scale(1.1);
}

.workout-card .price-badge {
    transition: all 0.3s ease;
}

.workout-card:hover .price-badge {
    transform: scale(1.05);
}

/* Coach Cards Styling */
.coach-card {
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background: linear-gradient(145deg, #1a1a1a, #2d2d2d);
    border-radius: 20px;
}

.coach-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gradient);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.coach-card img {
    transition: all 0.3s ease;
}

.coach-card:hover img {
    transform: scale(1.05);
}

/* Coach Selection Form */
#selectedCoachForm {
    animation: slideInUp 0.5s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Search Input Styling */
#coachSearch {
    transition: all 0.3s ease;
}

#coachSearch:focus {
    border-color: var(--accent-gradient);
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 107, 0.25);
}

/* Responsive adjustments for cards */
@media (max-width: 768px) {
    .workout-card, .coach-card {
        margin-bottom: 1rem;
    }
    
    .workout-card:hover, .coach-card:hover {
        transform: translateY(-5px);
    }
}

/* Advanced Mode Screen Styling */
#advancedModeScreen .card {
    border-radius: 20px;
    background: linear-gradient(145deg, #1a1a1a, #2d2d2d);
}

#advancedQuestionContainer {
    text-align: center;
}

#advancedQuestionContainer .d-flex.justify-content-center {
    width: 100%;
}

/* Ensure microphone button is perfectly centered */
#advancedQuestionContainer .microphone-btn {
    margin: 0 auto;
    display: block;
}