:root {
    --primary-color: #4a6bff;
    --secondary-color: #f5f7ff;
    --text-color: #333;
    --bg-color: #ffffff;
    --card-bg: #f9f9f9;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --result-bg: #f0f4ff;
    --hover-color: #3a5bef;
    --active-color: #2a4bdf;
}

[data-theme="dark"] {
    --primary-color: #5d7dff;
    --secondary-color: #1a1f36;
    --text-color: #f0f0f0;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --result-bg: #1a2a4a;
    --hover-color: #4c6cff;
    --active-color: #3a5bef;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: background-color 0.3s, color 0.3s;
}

body {
    background: url('LOAN.png') no-repeat center center fixed;
    background-size: cover;
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.opening-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000073;
    background: radial-gradient(circle,rgba(0, 0, 115, 1) 0%, rgba(0, 0, 0, 1) 100%);
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeOut 5s forwards;
}

.animation-content {
    text-align: center;
    color: white;
    transform: scale(0);
    animation: scaleIn 1s 1s forwards;
    padding: 20px;
    border-radius: 10px;
}

.animation-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.animation-content p {
    font-size: 1.2rem;
}

@keyframes fadeOut {
    0% { opacity: 1; }
    80% { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
}

@keyframes scaleIn {
    0% { transform: scale(0); }
    100% { transform: scale(1); }
}

.navbar {
    background-color: var(--card-bg);
    padding: 15px 20px;
    box-shadow: 0 2px 5px var(--shadow-color);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #525254;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

.nav-menu {
    display: flex;
    gap: 10px;
    list-style: none;
    align-items: center;
}

.nav-menu li {
    display: inline-block;
}

.nav-menu .loan-btn {
    padding: 8px 15px;
    font-size: 0.9rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    cursor: pointer;
    color: var(--text-color);
    font-weight: 500;
}

.nav-menu .loan-btn:hover {
    background-color: var(--hover-color);
    color: white;
}

.nav-menu .loan-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.nav-menu .theme-toggle {
    display: inline-block;
}

.nav-menu .theme-toggle button {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.nav-menu .theme-toggle button i {
    position: absolute;
    transition: opacity 0.3s, transform 0.3s;
}

.nav-menu .theme-toggle button .fa-moon {
    opacity: 1;
    transform: translateY(0);
}

.nav-menu .theme-toggle button .fa-sun {
    opacity: 0;
    transform: translateY(20px);
}

[data-theme="dark"] .nav-menu .theme-toggle button .fa-moon {
    opacity: 0;
    transform: translateY(-20px);
}

[data-theme="dark"] .nav-menu .theme-toggle button .fa-sun {
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    flex: 1;
}

[data-theme="dark"] .container {
    background-color: rgba(30, 30, 30, 0.95);
}

.loan-types {
    display: none;
}

.calculator-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.calculator {
    display: none;
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 10px var(--shadow-color);
}

.calculator.active {
    display: block;
}

.loan-info {
    background-color: var(--secondary-color);
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-color);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.input-group input[type="range"] {
    width: 100%;
    height: 8px;
    /* -webkit-appearance: none; */
    background: var(--border-color);
    border-radius: 5px;
    outline: none;
    margin-bottom: 10px;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

.value-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--secondary-color);
    padding: 8px 15px;
    border-radius: 5px;
    font-weight: 600;
}

.calculate-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
}

.calculate-btn:hover {
    background-color: var(--hover-color);
}

.results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 25px;
}

.result-box {
    background-color: var(--result-bg);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.result-label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.result-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.payment-schedule-container {
    margin-top: 40px;
}

.payment-schedule {
    max-height: 400px;
    overflow-y: auto;
    margin-top: 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--secondary-color);
    font-weight: 600;
    position: sticky;
    top: 0;
}

tr:hover {
    background-color: var(--secondary-color);
}

.footer {
    text-align: center;
    padding: 20px;
    background-color: var(--card-bg);
    color: var(--text-color);
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        right: 0;
        width: 200px;
        background-color: var(--card-bg);
        flex-direction: column;
        padding: 10px;
        box-shadow: 0 4px 10px var(--shadow-color);
        align-items: flex-end;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        margin: 5px 0;
        width: 100%;
    }

    .nav-menu .loan-btn {
        width: 100%;
        text-align: right;
    }

    .nav-menu .theme-toggle {
        margin: 10px 0;
        text-align: right;
    }

    .nav-menu .theme-toggle button {
        width: 40px;
        height: 40px;
    }

    .results {
        grid-template-columns: 1fr;
    }

    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .footer {
        padding: 15px;
        font-size: 0.8rem;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    flex: 1;
}

[data-theme="dark"] .container {
    background-color: rgba(30, 30, 30, 0.95);
}

/* Responsive styles for .container */
@media (max-width: 1024px) {
    .container {
        max-width: 900px;
        padding: 15px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 10px;
        margin: 0;
        border-radius: 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 8px;
    }
}