/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Base Styles */
body { 
    font-family: 'Inter', sans-serif; 
}

/* Glassmorphism Effects */
.glass { 
    backdrop-filter: blur(20px); 
    -webkit-backdrop-filter: blur(20px); 
}

/* Gradient Text */
.gradient-text { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
}

/* Card Hover Effects */
.card-hover { 
    transition: all 0.3s ease; 
}

.card-hover:hover { 
    transform: translateY(-5px); 
    box-shadow: 0 20px 40px rgba(0,0,0,0.1); 
}

/* Input Focus Effects */
.input-focus:focus { 
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1); 
}

/* Button Gradients */
.btn-gradient { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
}

.btn-gradient:hover { 
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%); 
}

/* Exercise Input Effects */
.exercise-input { 
    transition: all 0.3s ease; 
}

.exercise-input:focus { 
    transform: scale(1.02); 
}

/* Page Transitions */
.page { 
    transition: all 0.5s ease; 
}

.page.hidden { 
    opacity: 0; 
    transform: translateX(100px); 
    pointer-events: none; 
}

/* Exercise Card Effects */
.exercise-card { 
    transition: all 0.3s ease; 
}

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

/* Timer Active Animation */
.timer-active { 
    animation: pulse 1s infinite; 
}

@keyframes pulse { 
    0%, 100% { 
        opacity: 1; 
    } 
    50% { 
        opacity: 0.7; 
    } 
}

/* Background Blob Animations */
@keyframes blob {
    0% {
        transform: translate(0px, 0px) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    100% {
        transform: translate(0px, 0px) scale(1);
    }
}

.animate-blob {
    animation: blob 7s infinite;
}

.animation-delay-2000 {
    animation-delay: 2s;
}

.animation-delay-4000 {
    animation-delay: 4s;
}

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
    .text-8xl {
        font-size: 3rem;
    }
    
    .text-9xl {
        font-size: 4rem;
    }
    
    .w-32 {
        width: 6rem;
    }
    
    .h-32 {
        height: 6rem;
    }
}

@media (max-width: 480px) {
    .text-8xl {
        font-size: 2.5rem;
    }
    
    .text-9xl {
        font-size: 3rem;
    }
    
    .w-32 {
        width: 5rem;
    }
    
    .h-32 {
        height: 5rem;
    }
}

/* Loading Animation */
.loading {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Success Animation */
.success-bounce {
    animation: successBounce 0.6s ease-out;
}

@keyframes successBounce {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Error Shake Animation */
.error-shake {
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

/* Focus Ring for Accessibility */
.focus-ring:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Smooth Transitions for All Interactive Elements */
button, input, select, textarea {
    transition: all 0.2s ease;
}

/* Custom Selection Color */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: white;
}

::-moz-selection {
    background: rgba(102, 126, 234, 0.3);
    color: white;
}

/* Drag and Drop Styles */
.draggable-item {
    cursor: grab;
    transition: all 0.3s ease;
    user-select: none;
    position: relative;
}

.draggable-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.draggable-item:active {
    cursor: grabbing;
    transform: scale(1.02);
}

.draggable-item.dragging {
    opacity: 0.9;
    transform: rotate(3deg) scale(1.05);
    z-index: 1000;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: dragPulse 0.6s ease-in-out;
}

@keyframes dragPulse {
    0%, 100% {
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }
    50% {
        box-shadow: 0 25px 50px rgba(102, 126, 234, 0.4);
    }
}

.drag-over {
    background: rgba(102, 126, 234, 0.15) !important;
    border-color: rgba(102, 126, 234, 0.6) !important;
    transform: scale(1.02);
    animation: dragOverPulse 0.3s ease-in-out;
}

@keyframes dragOverPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1.02);
    }
}

.drag-placeholder {
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    height: 80px;
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
    animation: placeholderPulse 1.5s ease-in-out infinite;
}

@keyframes placeholderPulse {
    0%, 100% {
        opacity: 0.5;
        border-color: rgba(255, 255, 255, 0.3);
    }
    50% {
        opacity: 0.8;
        border-color: rgba(102, 126, 234, 0.6);
    }
}

/* Rest Duration Card */
.rest-duration-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    margin: 0.5rem auto;
    max-width: 200px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.rest-duration-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.rest-duration-card:hover::before {
    left: 100%;
}

.rest-duration-card:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3) 0%, rgba(118, 75, 162, 0.3) 100%);
    border-color: rgba(102, 126, 234, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.2);
}

.rest-duration-card:active {
    transform: translateY(0) scale(0.98);
}

.rest-duration-card .rest-icon {
    font-size: 1.5rem;
    color: #667eea;
    margin-bottom: 0.5rem;
    display: block;
}

.rest-duration-card .rest-text {
    font-size: 0.875rem;
    color: white;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.rest-duration-card .rest-duration {
    font-size: 1rem;
    color: #667eea;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Rest Edit Modal */
.rest-edit-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.rest-edit-modal.active {
    opacity: 1;
    visibility: visible;
}

.rest-edit-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1rem;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    transform: scale(0.8);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.rest-edit-modal.active .rest-edit-content {
    transform: scale(1);
}

.rest-edit-content h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.rest-edit-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.rest-edit-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.2);
}

.rest-edit-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.rest-edit-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.rest-edit-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.rest-edit-save {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.rest-edit-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.rest-edit-cancel {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.rest-edit-cancel:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Program Timer Specific Styles */
.program-timer-active {
    animation: programPulse 2s infinite;
}

@keyframes programPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }
}

.exercise-progress-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    height: 8px;
    overflow: hidden;
    margin: 1rem 0;
}

.exercise-progress-fill {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100%;
    border-radius: 1rem;
    transition: width 0.3s ease;
}

/* Exercise Order Item Styles */
.exercise-order-item {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.75rem;
    padding: 0.75rem;
    margin: 0.25rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    min-height: 60px;
}

.exercise-order-item:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateX(3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.exercise-order-item .drag-handle {
    cursor: grab;
    padding: 0.25rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    margin-right: 0.5rem;
}

.exercise-order-item .drag-handle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.exercise-order-item .drag-handle:active {
    cursor: grabbing;
    background: rgba(255, 255, 255, 0.2);
}

.exercise-order-item .exercise-info {
    flex: 1;
    margin-left: 0.5rem;
}

.exercise-order-item .exercise-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.75rem;
    margin-right: 0.5rem;
}

.exercise-order-item .exercise-title {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.25rem;
}

.exercise-order-item .exercise-details {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.exercise-order-item .exercise-stats {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.exercise-order-item .stat-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
}

.exercise-order-item .stat-item i {
    font-size: 0.625rem;
}

.exercise-order-item .rest-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.125rem 0.5rem;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 0.5rem;
    font-size: 0.625rem;
    color: #667eea;
    font-weight: 500;
}

.exercise-order-item .rest-indicator i {
    font-size: 0.5rem;
}

.exercise-order-item .exercise-actions {
    display: flex;
    gap: 0.5rem;
}

.exercise-order-item .exercise-actions button {
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    transition: all 0.2s ease;
}

/* Rest Duration Options */
.rest-duration-option {
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.rest-duration-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.rest-duration-option.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Enhanced Exercise Order Items */
.exercise-order-item {
    position: relative;
    overflow: hidden;
}

.exercise-order-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.exercise-order-item:hover::before {
    transform: scaleX(1);
}

.exercise-order-item .exercise-info {
    position: relative;
}

.exercise-order-item .exercise-title {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Exercise Card Enhancements */
.exercise-card-enhanced {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.exercise-card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.exercise-card-enhanced:hover::before {
    transform: scaleX(1);
}

.exercise-card-enhanced:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Exercise Roadmap Styles */
.exercise-roadmap {
    position: relative;
}

.exercise-roadmap::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateX(-50%);
    z-index: 1;
}

.exercise-roadmap-item {
    position: relative;
    z-index: 2;
    margin-bottom: 1rem;
}

.exercise-roadmap-item:last-child {
    margin-bottom: 0;
}

.exercise-roadmap-item::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 100%;
    width: 2px;
    height: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateX(-50%);
    z-index: 1;
}

.exercise-roadmap-item:last-child::after {
    display: none;
}

.exercise-roadmap-arrow {
    position: absolute;
    left: 50%;
    top: 100%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 12px solid #667eea;
    z-index: 3;
}

.exercise-roadmap-item:last-child .exercise-roadmap-arrow {
    display: none;
}

/* Enhanced Exercise Order Items */
.exercise-order-item-enhanced {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 1rem;
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: 80px;
}

.exercise-order-item-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.exercise-order-item-enhanced:hover::before {
    transform: scaleX(1);
}

.exercise-order-item-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.exercise-order-item-enhanced .exercise-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1rem;
    margin-right: 1rem;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.exercise-order-item-enhanced .exercise-info {
    flex: 1;
    margin-right: 1rem;
}

.exercise-order-item-enhanced .exercise-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.exercise-order-item-enhanced .exercise-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.exercise-order-item-enhanced .stat-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
}

.exercise-order-item-enhanced .stat-item i {
    font-size: 0.75rem;
}

.exercise-order-item-enhanced .rest-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 0.75rem;
    font-size: 0.75rem;
    color: #667eea;
    font-weight: 600;
}

.exercise-order-item-enhanced .exercise-actions {
    display: flex;
    gap: 0.5rem;
}

.exercise-order-item-enhanced .exercise-actions button {
    padding: 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    min-width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}