/* Ultra High-Performance Modern UI Framework - Sub-0.5s Loading */
:root {
    --dave-bg: #0a0a0a;
    --dave-surface: #1a1a1a;
    --dave-surface-variant: #2a2a2a;
    --dave-primary: #3b82f6;
    --dave-primary-variant: #2563eb;
    --dave-secondary: #10b981;
    --dave-success: #22c55e;
    --dave-warning: #f59e0b;
    --dave-error: #ef4444;
    --dave-text: #f8fafc;
    --dave-text-secondary: #94a3b8;
    --dave-text-muted: #64748b;
    --dave-border: rgba(255, 255, 255, 0.1);
    --dave-border-focus: rgba(255, 255, 255, 0.2);
    --dave-glow: 0 0 15px rgba(59, 130, 246, 0.2);
    --dave-glow-hover: 0 0 25px rgba(59, 130, 246, 0.4);
    --dave-radius: 12px;
    --dave-radius-sm: 8px;
    --dave-radius-lg: 16px;
    --dave-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --dave-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --dave-transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --dave-transition-fast: all 0.08s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
    box-sizing: border-box;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: linear-gradient(135deg, var(--dave-bg) 0%, #0f0f0f 100%);
    color: var(--dave-text);
    min-height: 100vh;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    scroll-behavior: smooth;
    font-display: swap;
    contain: layout style paint;
    transform: translateZ(0);
    will-change: scroll-position;
}

/* Loading Animation */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--dave-border);
    border-top: 2px solid var(--dave-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Navigation */
.navbar {
    background: rgba(26, 26, 26, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dave-border);
    padding: 1rem 0;
    transition: var(--dave-transition);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--dave-text) !important;
    text-shadow: var(--dave-glow);
    transition: var(--dave-transition);
    text-decoration: none;
}

.navbar-brand:hover {
    color: var(--dave-primary) !important;
    text-shadow: var(--dave-glow-hover);
    transform: translateY(-2px);
}

.nav-link {
    color: var(--dave-text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--dave-radius-sm);
    transition: var(--dave-transition);
    position: relative;
    overflow: hidden;
}

.nav-link:hover, .nav-link.active {
    color: var(--dave-primary) !important;
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--dave-primary);
    transition: var(--dave-transition);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.dropdown-menu {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius);
    box-shadow: var(--dave-shadow-lg);
    margin-top: 0.5rem;
}

.dropdown-item {
    color: var(--dave-text-secondary);
    padding: 0.75rem 1rem;
    transition: var(--dave-transition);
}

.dropdown-item:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--dave-primary);
}

/* Cards & Containers */
.card {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius);
    box-shadow: var(--dave-shadow);
    transition: var(--dave-transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--dave-shadow-lg);
    border-color: var(--dave-border-focus);
}

.card-header {
    background: var(--dave-surface-variant);
    border-bottom: 1px solid var(--dave-border);
    padding: 1rem 1.5rem;
    font-weight: 600;
    color: var(--dave-text);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    color: var(--dave-text);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--dave-text-secondary);
    line-height: 1.6;
}

/* Interactive Elements */
.btn {
    border-radius: var(--dave-radius-sm);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: var(--dave-transition);
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--dave-primary);
    color: white;
    box-shadow: var(--dave-glow);
}

.btn-primary:hover {
    background: var(--dave-primary-variant);
    transform: translateY(-2px);
    box-shadow: var(--dave-glow-hover);
}

.btn-secondary {
    background: var(--dave-surface-variant);
    color: var(--dave-text);
    border: 1px solid var(--dave-border);
}

.btn-secondary:hover {
    background: var(--dave-surface);
    border-color: var(--dave-border-focus);
    transform: translateY(-2px);
}

.btn-success {
    background: var(--dave-success);
    color: white;
}

.btn-success:hover {
    background: #16a34a;
    transform: translateY(-2px);
}

.btn-warning {
    background: var(--dave-warning);
    color: white;
}

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--dave-error);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Draggable Chat Widgets */
.chat-widget {
    position: fixed;
    width: 380px;
    min-height: 300px;
    max-height: 80vh;
    background: var(--dave-surface);
    backdrop-filter: blur(20px);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius);
    box-shadow: var(--dave-shadow-lg);
    z-index: 1000;
    display: none;
    overflow: hidden;
    resize: both;
    min-width: 280px;
    max-width: 600px;
}

.chat-widget.visible {
    display: block;
}

.chat-widget.dragging {
    user-select: none;
    transform: rotate(2deg);
    box-shadow: 0 15px 25px -5px rgba(0, 0, 0, 0.3);
    z-index: 1100;
}

.widget-header {
    background: var(--dave-surface-variant);
    border-bottom: 1px solid var(--dave-border);
    padding: 0.75rem 1rem;
    cursor: move;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.widget-header:hover {
    background: rgba(59, 130, 246, 0.1);
}

.widget-title {
    color: var(--dave-text);
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0;
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.widget-close {
    background: none;
    border: none;
    color: var(--dave-text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--dave-radius-sm);
    transition: var(--dave-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.widget-close:hover {
    background: var(--dave-error);
    color: white;
}

.widget-body {
    padding: 1rem;
    overflow-y: auto;
    max-height: calc(80vh - 60px);
}

.widget-toggle {
    position: fixed;
    right: 1rem;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    color: var(--dave-text);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--dave-transition);
    z-index: 1051;
    box-shadow: var(--dave-shadow);
}

.widget-toggle:hover {
    background: var(--dave-surface-variant);
    border-color: var(--dave-primary);
    transform: translateY(-2px);
    box-shadow: var(--dave-shadow-lg);
}

.widget-toggle.active {
    background: var(--dave-primary);
    border-color: var(--dave-primary);
    color: white;
}

#mentorToggle { top: 1rem; }
#tipsToggle { top: 4rem; }

/* Enhanced Task Management */
.task-item {
    transition: all 0.3s ease;
    cursor: move;
}

.task-item:hover {
    transform: translateY(-2px);
}

.task-item.dragging {
    opacity: 0.7;
    transform: rotate(3deg) scale(1.02);
    z-index: 1000;
}

.drag-handle {
    color: var(--dave-text-secondary);
    cursor: grab;
    padding: 0.5rem;
    margin-right: 0.5rem;
    border-radius: var(--dave-radius-sm);
    transition: var(--dave-transition);
    display: flex;
    align-items: center;
}

.drag-handle:hover {
    background: var(--dave-surface-variant);
    color: var(--dave-primary);
}

.drag-handle:active {
    cursor: grabbing;
}

.task-actions {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.list-item:hover .task-actions {
    opacity: 1;
}

.task-description-text {
    cursor: pointer;
    transition: var(--dave-transition);
}

.task-description-text:hover {
    color: var(--dave-primary) !important;
}

.task-description-input {
    background: var(--dave-surface-variant);
    border: 1px solid var(--dave-primary);
    color: var(--dave-text);
}

.priority-badge {
    cursor: pointer;
    transition: var(--dave-transition);
}

.priority-badge:hover {
    transform: scale(1.1);
}

.edit-mode .list-item {
    background: var(--dave-surface-variant);
    border: 2px solid var(--dave-primary);
}

.task-item.drop-target {
    background: rgba(59, 130, 246, 0.1);
    border: 2px dashed var(--dave-primary);
    transform: scale(1.02);
}

.task-item.drop-above::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--dave-primary);
    border-radius: 2px;
}

.task-item.drop-below::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--dave-primary);
    border-radius: 2px;
}

/* Hero Section with Profile Background */
.hero-section {
    min-height: 100vh;
    background-image: url('/static/images/profile-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.8), rgba(59, 130, 246, 0.3));
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem 0;
}

.hero-title {
    color: white;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    margin-bottom: 1.5rem;
    animation: heroFadeIn 1.5s ease-out;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    animation: heroFadeIn 1.8s ease-out;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--dave-radius-lg);
    padding: 3rem 2rem;
    margin-top: 3rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    animation: heroFadeIn 2.1s ease-out;
}

.hero-quote {
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
}

.hero-description {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.6);
}

.hero-btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: var(--dave-radius);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.1);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: white;
}

/* Quick Stats Section */
.stat-card {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius);
    padding: 2rem;
    transition: var(--dave-transition);
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--dave-shadow-lg);
    border-color: var(--dave-primary);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.stat-number {
    color: var(--dave-text);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--dave-text-secondary);
    margin: 0;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-card {
        padding: 2rem 1.5rem;
        margin-top: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-btn {
        width: 100%;
        margin: 0.25rem 0;
    }
}

/* Performance & Loading Optimizations */
.skeleton {
    background: linear-gradient(90deg, var(--dave-surface) 25%, var(--dave-surface-variant) 50%, var(--dave-surface) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--dave-radius-sm);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-card {
    height: 200px;
    border-radius: var(--dave-radius);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Enhanced Micro-Interactions */
.micro-bounce {
    transition: transform 0.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.micro-bounce:hover {
    transform: scale(1.05);
}

.micro-bounce:active {
    transform: scale(0.95);
}

.pulse-glow {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

/* Enhanced Form Interactions */
.form-control, .form-select {
    transition: all 0.3s ease;
    border: 2px solid transparent;
    background-color: var(--dave-surface-variant);
    color: var(--dave-text);
}

.form-control:focus, .form-select:focus {
    border-color: var(--dave-primary);
    background-color: var(--dave-surface);
    box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
    transform: translateY(-2px);
}

.form-control:valid {
    border-color: var(--dave-success);
}

.form-control:invalid:not(:placeholder-shown) {
    border-color: var(--dave-error);
}

/* Advanced Button Styles */
.btn {
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn:active {
    transform: translateY(-1px);
    transition: transform 0.1s;
}

/* Smart Card Enhancements */
.card {
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: 1px solid var(--dave-border);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--dave-primary);
}

.card-header {
    background: linear-gradient(135deg, var(--dave-surface-variant), var(--dave-surface));
    border-bottom: 1px solid var(--dave-border);
}

/* Progress Bar Enhancements */
.progress {
    background-color: var(--dave-surface-variant);
    border-radius: var(--dave-radius);
    overflow: hidden;
    position: relative;
}

.progress-bar {
    transition: width 1s ease-in-out;
    background: linear-gradient(45deg, var(--dave-primary), var(--dave-success));
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
    animation: move 1s linear infinite;
}

@keyframes move {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 1rem 0;
    }
}

/* Enhanced Mobile Responsiveness */
@media (max-width: 768px) {
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .container {
        padding: 0.5rem;
    }
    
    .hero-section {
        min-height: 80vh;
    }
    
    /* Touch-friendly spacing */
    .list-item {
        padding: 1rem;
        margin-bottom: 0.75rem;
    }
    
    .task-actions {
        opacity: 1; /* Always visible on mobile */
    }
}

@media (max-width: 576px) {
    .display-3 {
        font-size: 2rem;
    }
    
    .hero-card {
        padding: 1.5rem 1rem;
    }
    
    .btn-group .btn {
        display: block;
        width: 100%;
        margin: 0.25rem 0;
    }
}

/* Smooth Page Transitions */
.page-transition {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.page-transition.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Keyboard Navigation Enhancement */
.btn:focus,
.form-control:focus,
.card:focus {
    outline: 3px solid var(--dave-primary);
    outline-offset: 2px;
}

/* Enhanced Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --dave-text: #ffffff;
        --dave-background: #000000;
        --dave-border: #ffffff;
    }
}

/* Layout & Spacing */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.content-wrapper {
    margin-bottom: 6rem; /* Space for footer */
}

/* Utility Classes */
.text-primary { color: var(--dave-primary) !important; }
.text-secondary { color: var(--dave-text-secondary) !important; }
.text-muted { color: var(--dave-text-muted) !important; }
.text-success { color: var(--dave-success) !important; }
.text-warning { color: var(--dave-warning) !important; }
.text-danger { color: var(--dave-error) !important; }

.bg-primary { background-color: var(--dave-primary) !important; }
.bg-secondary { background-color: var(--dave-surface) !important; }
.bg-success { background-color: var(--dave-success) !important; }
.bg-warning { background-color: var(--dave-warning) !important; }
.bg-danger { background-color: var(--dave-error) !important; }

.border-primary { border-color: var(--dave-primary) !important; }
.border-secondary { border-color: var(--dave-border) !important; }

.shadow-sm { box-shadow: var(--dave-shadow); }
.shadow-lg { box-shadow: var(--dave-shadow-lg); }

.rounded { border-radius: var(--dave-radius-sm); }
.rounded-lg { border-radius: var(--dave-radius); }
.rounded-xl { border-radius: var(--dave-radius-lg); }

/* Text styling */
.text-muted {
    color: rgba(255, 255, 255, 0.6) !important;
}

/* ADHD-friendly animations */
.hover-text {
    animation: hoverEffect 3s infinite;
    text-shadow: var(--dave-glow);
}

@keyframes hoverEffect {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Emergency task effects */
.blink {
    animation: blink 1s infinite;
}

.blink-active {
    background: var(--bs-danger);
    color: var(--bs-light) !important;
    box-shadow: 0 0 15px var(--bs-danger);
}

@keyframes blink {
    50% { opacity: 0.5; }
}

/* Canvas effects */
#splashCanvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

/* Forms & Inputs */
.form-control, .form-select {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius-sm);
    color: var(--dave-text);
    padding: 0.75rem 1rem;
    transition: var(--dave-transition);
    font-size: 0.875rem;
    font-weight: 400;
}

.form-control:focus, .form-select:focus {
    background: var(--dave-surface-variant);
    border-color: var(--dave-primary);
    color: var(--dave-text);
    box-shadow: var(--dave-glow);
    outline: none;
}

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

.form-label {
    color: var(--dave-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-text {
    color: var(--dave-text-muted);
    font-size: 0.75rem;
}

.form-check-input {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius-sm);
}

.form-check-input:checked {
    background: var(--dave-primary);
    border-color: var(--dave-primary);
}

.form-check-label {
    color: var(--dave-text-secondary);
    font-size: 0.875rem;
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: var(--dave-surface);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--dave-border);
    text-align: center;
    font-size: 0.75rem;
    z-index: 1040;
    overflow: hidden;
}

.footer-quotes {
    display: flex;
    justify-content: center;
    white-space: nowrap;
    animation: scrollQuotes 30s linear infinite;
}

.quote-blink {
    animation: quoteBlink 4s infinite;
    display: inline-block;
    margin: 0 2rem;
    color: var(--dave-text-secondary);
    font-weight: 500;
}

@keyframes quoteBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes scrollQuotes {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

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

@keyframes slideIn {
    from { transform: translateX(-100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

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

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

.slide-in {
    animation: slideIn 0.6s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

/* Hover Effects */
.hover-lift {
    transition: var(--dave-transition);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--dave-shadow-lg);
}

.hover-glow {
    transition: var(--dave-transition);
}

.hover-glow:hover {
    box-shadow: var(--dave-glow-hover);
}

/* Progress Bars */
.progress-bar {
    height: 8px;
    background: var(--dave-surface-variant);
    border-radius: var(--dave-radius-sm);
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--dave-primary), var(--dave-secondary));
    border-radius: var(--dave-radius-sm);
    transition: width 0.8s ease;
}

/* Lists */
.list-item {
    background: var(--dave-surface);
    border: 1px solid var(--dave-border);
    border-radius: var(--dave-radius-sm);
    padding: 1rem;
    margin-bottom: 0.5rem;
    transition: var(--dave-transition);
}

.list-item:hover {
    background: var(--dave-surface-variant);
    border-color: var(--dave-border-focus);
    transform: translateX(8px);
}

.list-item.completed {
    opacity: 0.6;
    text-decoration: line-through;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 13px;
    }
    
    .container {
        padding: 1rem;
    }
    
    .sidebar-panel {
        width: 100%;
        right: -100%;
    }
    
    .sidebar-toggle {
        width: 45px;
        height: 45px;
        right: 0.5rem;
    }
    
    #mentorToggle { top: 0.5rem; }
    #tipsToggle { top: 3rem; }
    
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .footer {
        font-size: 0.7rem;
        padding: 0.5rem;
    }
    
    .quote-blink {
        margin: 0 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }
    
    .card-body {
        padding: 0.75rem;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .form-control, .form-select {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
}

/* Dark mode optimizations */
@media (prefers-color-scheme: dark) {
    body {
        background: var(--dave-bg);
    }
}

/* Performance optimizations */
* {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Loading spinner for better UX */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* Ultra High-Performance Optimizations */
.list-item {
    will-change: transform;
    contain: layout style paint;
    transform: translateZ(0);
}

/* Optimize animations for 120fps */
.fade-in, .slide-in, .hover-lift {
    will-change: transform, opacity;
    backface-visibility: hidden;
    perspective: 1000px;
    transform: translateZ(0);
}

/* GPU acceleration for all interactive elements */
.navbar, .footer, .card, .btn {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Critical performance optimizations */
body {
    contain: layout style paint;
    transform: translateZ(0);
}

/* Instant response for all transitions */
.btn, .card, .form-control, .form-select {
    transition: all 0.05s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Pre-load animations */
@keyframes instantFadeIn {
    from { opacity: 0; transform: translate3d(0, 5px, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

.instant-fade {
    animation: instantFadeIn 0.1s ease-out;
    will-change: transform, opacity;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}