@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color:  rgba(9, 161, 249, 0.972);
    --secondary-color: #f50057;
    --success-color: #00c853;
    --warning-color: #ffd600;
    --info-color: #00b8d4;
    --light-color: #f5f5f5;
    --dark-color: #212121;
    --transition: all 0.3s ease-in-out;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header.scrolled {
    padding: 10px 0;
}

.nav-link {
    position: relative;
    overflow: hidden;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transform: translateX(-100%);
    transition: var(--transition);
}

.nav-link:hover::after {
    transform: translateX(0);
}

/* Button Styles */
.btn {
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: darken(var(--primary-color), 10%);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Hero Section */
#hero {
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(41, 98, 255, 0.8), rgba(0, 184, 212, 0.8));
    z-index: -1;
}

/* Feature Cards */
.feature-card {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 80%);
    transform: rotate(45deg);
    transition: var(--transition);
    z-index: -1;
}

.feature-card:hover::before {
    transform: rotate(45deg) translate(50%, 50%);
}

/* Calculator Cards */
.calculator-card {
    transition: var(--transition);
}

.calculator-card:hover {
    transform: translateY(-10px);
}

/* Input Styles */
input[type="text"],
input[type="number"],
input[type="email"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(41, 98, 255, 0.2);
}

/* Footer Styles */
footer {
    background-color: var(--dark-color);
    color: #fff;
}

.social-icons a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

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

.animate__fadeInUp {
    animation: fadeInUp 1s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    #hero h1 {
        font-size: 2.5rem;
    }

    .feature-card,
    .calculator-card {
        margin-bottom: 30px;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: darken(var(--primary-color), 10%);
}

/* Additional Enhancements */
.calculator-result {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.calculator-result.show {
    opacity: 1;
    transform: translateY(0);
}

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: var(--dark-color);
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
}

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

/* Multi-color progress bar */
.progress-bar {
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color), var(--success-color), var(--warning-color), var(--info-color));
    width: 0;
    transition: width 0.5s ease-in-out;
}

/* Floating labels for inputs */
.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.form-group label {
    position: absolute;
    top: 10px;
    left: 10px;
    transition: all 0.3s ease-out;
    pointer-events: none;
    color: #999;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: -20px;
    font-size: 12px;
    color: var(--primary-color);
}

/* Ripple effect for buttons */
.btn {
    position: relative;
    overflow: hidden;
}

.btn:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, .5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 1;
    }
    20% {
        transform: scale(25, 25);
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

.btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

/* Glassmorphism effect */
.glass-card {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

/* Neumorphism effect */
.neumorphic {
    background: var(--light-color);
    border-radius: 50px;
    box-shadow: 20px 20px 60px #d0d0d0, -20px -20px 60px #ffffff;
}

/* Dark mode toggle */
.dark-mode-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.dark-mode-toggle input[type="checkbox"] {
    display: none;
}

.dark-mode-toggle label {
    cursor: pointer;
    width: 50px;
    height: 25px;
    background: var(--primary-color);
    display: block;
    border-radius: 25px;
    position: relative;
}

.dark-mode-toggle label:after {
    content: '';
    width: 20px;
    height: 20px;
    position: absolute;
    top: 2.5px;
    left: 2.5px;
    background: #fff;
    border-radius: 50%;
    transition: 0.3s;
}

.dark-mode-toggle input:checked + label {
    background: var(--dark-color);
}

.dark-mode-toggle input:checked + label:after {
    left: calc(100% - 2.5px);
    transform: translateX(-100%);
}

/* Dark mode styles */
body.dark-mode {
    background-color: var(--dark-color);
    color: var(--light-color);
}

body.dark-mode header {
    background-color: #333;
}

body.dark-mode .calculator-card {
    background-color: #444;
    color: var(--light-color);
}

body.dark-mode input[type="text"],
body.dark-mode input[type="number"],
body.dark-mode input[type="email"] {
    background-color: #555;
    color: var(--light-color);
    border-color: #666;
}

body.dark-mode .btn-outline-primary {
    border-color: var(--light-color);
    color: var(--light-color);
}

body.dark-mode .btn-outline-primary:hover {
    background-color: var(--light-color);
    color: var(--dark-color);
}

/* Add any additional styles or modifications here */