/* Custom Styles for RD Calculator */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom slider styles */
.slider {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: #e5e7eb;
    outline: none;
    transition: all 0.3s ease;
}

.slider:hover {
    background: #d1d5db;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #1e40af;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.slider::-webkit-slider-thumb:hover {
    background: #3b82f6;
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #1e40af;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

.slider::-moz-range-thumb:hover {
    background: #3b82f6;
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

/* Input focus states */
input[type="number"]:focus {
    outline: none;
    border-color: #1e40af;
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

/* Animation classes */
.fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

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

.slide-in-left {
    animation: slideInLeft 0.8s ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.8s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Pulse animation for important elements */
.pulse {
    animation: pulse 2s infinite;
}

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

/* Custom gradient backgrounds */
.gradient-primary {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
}

.gradient-secondary {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
}

.gradient-success {
    background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
}

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

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Button styles */
.btn-primary {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(30, 64, 175, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #1e40af;
    padding: 12px 24px;
    border: 2px solid #1e40af;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-secondary:hover {
    background: #1e40af;
    color: white;
    transform: translateY(-2px);
}

/* Loading spinner */
.spinner {
    border: 4px solid #f3f4f6;
    border-top: 4px solid #1e40af;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Tooltip styles */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: #374151;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 14px;
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #374151 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1e40af 0%, #3b82f6 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .mobile-menu {
        transition: all 0.3s ease;
    }
    
    .mobile-menu.active {
        max-height: 300px;
    }
    
    /* Adjust font sizes for mobile */
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    /* Stack calculator elements vertically on mobile */
    .calculator-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* Adjust padding for mobile */
    .mobile-padding {
        padding: 1rem;
    }
    
    /* Reduce section padding on mobile */
    section {
        padding-top: 2rem !important;
        padding-bottom: 2rem !important;
    }
    
    /* Hero section mobile optimization */
    .hero-section {
        padding-top: 4rem !important;
        padding-bottom: 4rem !important;
    }
    
    /* Reduce hero animations on mobile for performance */
    .animate-float,
    .animate-float-delay-1,
    .animate-float-delay-2,
    .animate-rotate-slow,
    .animate-rotate-reverse {
        animation-duration: 8s;
    }
    
    /* Compact calculator on mobile */
    .mobile-calculator {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    /* Adjust chart height on mobile */
    #investmentChart {
        height: 200px !important;
        max-height: 200px !important;
    }
    
    .chart-container {
        height: 200px !important;
    }
}

/* Tablet optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .tablet-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Print styles */
@media print {
    .no-print {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .print-break {
        page-break-before: always;
    }
}

/* Accessibility improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus indicators for keyboard navigation */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid #1e40af;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .slider::-webkit-slider-thumb {
        border: 2px solid #000;
    }
    
    .slider::-moz-range-thumb {
        border: 2px solid #000;
    }
}

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

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .dark-mode {
        background-color: #1f2937;
        color: #f9fafb;
    }
    
    .dark-mode .bg-white {
        background-color: #374151;
    }
    
    .dark-mode .text-gray-900 {
        color: #f9fafb;
    }
    
    .dark-mode .text-gray-600 {
        color: #d1d5db;
    }
    
    .dark-mode .border-gray-300 {
        border-color: #4b5563;
    }
}

/* Custom utility classes */
.glass-effect {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.text-shadow {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.box-shadow-lg {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* Animation delays for staggered effects */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* Hero Background Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

@keyframes float-delay-1 {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(-3deg);
    }
}

@keyframes float-delay-2 {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-25px) rotate(2deg);
    }
}

@keyframes rotate-slow {
    from {
        transform: rotate(45deg);
    }
    to {
        transform: rotate(405deg);
    }
}

@keyframes rotate-reverse {
    from {
        transform: rotate(12deg);
    }
    to {
        transform: rotate(-348deg);
    }
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse-subtle {
    0%, 100% {
        box-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(245, 158, 11, 0.8);
    }
}

/* Animation Classes */
.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float-delay-1 {
    animation: float-delay-1 8s ease-in-out infinite;
    animation-delay: 2s;
}

.animate-float-delay-2 {
    animation: float-delay-2 7s ease-in-out infinite;
    animation-delay: 4s;
}

.animate-rotate-slow {
    animation: rotate-slow 20s linear infinite;
}

.animate-rotate-reverse {
    animation: rotate-reverse 15s linear infinite;
}

.animate-fade-in-up {
    animation: fade-in-up 1s ease-out;
}

.animate-bounce-subtle {
    animation: bounce-subtle 2s ease-in-out infinite;
}

.animate-pulse-subtle {
    animation: pulse-subtle 2s ease-in-out infinite;
}

/* Animation Delay Classes */
.animation-delay-200 {
    animation-delay: 0.2s;
}

.animation-delay-400 {
    animation-delay: 0.4s;
}

.animation-delay-600 {
    animation-delay: 0.6s;
}

/* Hero Section Enhancements */
.hero-section {
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

/* Glassmorphism effect for feature icons */
.hero-section .bg-white.bg-opacity-20 {
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Enhanced button effects */
.hero-section a {
    backdrop-filter: blur(10px);
}

.hero-section a:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* Particle effect simulation */
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, white, transparent),
        radial-gradient(2px 2px at 40px 70px, white, transparent),
        radial-gradient(1px 1px at 90px 40px, white, transparent),
        radial-gradient(1px 1px at 130px 80px, white, transparent),
        radial-gradient(2px 2px at 160px 30px, white, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    opacity: 0.1;
    animation: particle-float 20s linear infinite;
}

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

/* Chart container fixes */
#investmentChart {
    max-height: 250px !important;
    max-width: 100% !important;
}

.chart-container {
    position: relative;
    height: 250px;
    width: 100%;
    overflow: hidden;
}

.chart-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    max-height: 250px !important;
}

/* Back to Top Button Styles */
#backToTop {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
}

#backToTop.hidden {
    opacity: 0;
    visibility: hidden;
}

#backToTop:hover {
    box-shadow: 0 10px 25px rgba(30, 64, 175, 0.3);
    transform: scale(1.1);
}

#backToTop:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

/* Remove the problematic scroll animation that causes jitter */
#backToTop:focus {
    outline: 2px solid rgba(30, 64, 175, 0.5);
    outline-offset: 2px;
}