:root {
        --primary-color: #1a4731; 
        --secondary-color: #2d6a4f; 
        --accent-color: #40916c; 
        --bg-color: #f8f9fa; 
        --text-color: #212121; 
        --shadow-color: rgba(0, 0, 0, 0.1);
        --popup-bg-color: #faf6f1; 
        --popup-border-color: #d4a373; 
        --container-bg-color: #ffffff; 
        --input-bg-color: #e8f1ed; 
    }
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}
body {
    background: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem;
    min-height: 100vh;
    transition: background 0.3s ease;
}
.coins {
    position: fixed;
    bottom: 20px;
    left: 20px;   
    background: var(--secondary-color);
    border-radius: 10px; 
    padding: 10px 15px; 
    box-shadow: 0 6px 12px var(--shadow-color); 
    color: white; 
    font-weight: bold; 
    font-size: 1rem; 
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s;
    border: 2px solid var(--accent-color); 
    z-index: 1000;
    opacity: 0; 
    animation: fadeInUp 0.5s forwards; 
}
@keyframes fadeInUp {
    from {
        opacity: 0; 
        transform: translateY(20px);
    }
    to {
        opacity: 1; 
        transform: translateY(0); 
    }
}
.coins:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 24px var(--shadow-color); 
    background-color: var(--accent-color); 
}
@media (max-width: 768px) {
    .coins {
        font-size: 0.9rem; 
        padding: 8px 12px; 
    }
}
.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--popup-bg-color);
    border: 2px solid var(--popup-border-color);
    box-shadow: 0 5px 20px var(--shadow-color);
    z-index: 100;
    width: 90%;
    max-width: 420px;
    padding: 30px;
    border-radius: 15px;
    animation: fadeIn 0.3s ease, slideIn 0.3s ease;
    text-align: center;
    overflow: hidden;
}
.popup.active {
    display: block;
}
.popup .close:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}
.popup-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}
.popup button {
    margin-top: 10px; 
    padding: 8px 16px; 
    font-size: 0.9rem; 
    font-weight: bold;
    background-color: var(--secondary-color); 
    color: white; 
    border: 2px solid var(--secondary-color); 
    border-radius: 5px; 
    cursor: pointer; 
    transition: background 0.3s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 3px 8px var(--shadow-color); 
}
.popup button:hover {
    background-color: var(--accent-color); 
    transform: translateY(-1px); 
    box-shadow: 0 4px 12px var(--shadow-color); 
}
.popup .close {
    background: var(--primary-color); 
}
.popup .close:hover {
    background: var(--accent-color); 
}
.popup .timer {
    font-weight: bold;
    margin-top: 15px;
    font-size: 1.5rem;
    color: var(--accent-color);
}
.container {
    max-width: 900px;
    width: 100%;
    background: var(--container-bg-color);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 20px var(--shadow-color);
    animation: slideIn 0.6s ease-out;
    transition: all 0.3s;
    border: 1px solid rgba(64, 145, 108, 0.1);
}
h1 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}
h1::after {
    content: '';
    display: block;
    position: relative;
    height: 4px;
    width: 60px;
    background: var(--accent-color);
    margin: 10px auto;
    border-radius: 2px;
}
p {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    opacity: 0.8;
}
.input-container {
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    background: var(--input-bg-color);
    box-shadow: 0 2px 6px var(--shadow-color);
}
.input-group {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    justify-content: center;
}
input {
    flex: 1;
    text-align: center;
    padding: 12px 15px;
    border: 2px solid rgba(64, 145, 108, 0.2);
    border-radius: 8px; 
    font-size: 1rem;
    transition: border-color 0.3s ease;
}
input:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(64, 145, 108, 0.1);
}
button {
    background: var(--accent-color); 
    color: white; 
    border: none; 
    padding: 12px 20px;
    border-radius: 8px; 
    cursor: pointer; 
    font-size: 1rem; 
    font-weight: 600; 
    text-transform: uppercase;
    transition: background 0.3s ease, transform 0.2s ease;
}
button:hover {
    background: var(--primary-color); 
    transform: translateY(-2px); 
    box-shadow: 0 4px 8px var(--shadow-color);
}
#output {
    position: relative; 
    background: rgba(64, 145, 108, 0.05);
    padding: 1.5rem; 
    border-radius: 10px; 
    font-size: 1.2rem; 
    text-align: center;
    min-height: 60px; 
    border: 2px solid rgba(64, 145, 108, 0.2);
    transition: all 0.3s ease;
    margin-bottom: 20px;
    direction: ltr;
    unicode-bidi: embed;
}
@media (max-width: 768px) {
    .container { padding: 1.5rem; }
    .input-group { flex-direction: column; }
    button { width: 100%; }
    h1 { font-size: 2rem; }
}
@keyframes slideIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.language-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001;
}
#language-fab-button {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px var(--shadow-color);
    font-size: 1.8rem;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
}
#language-fab-button:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}
.language-options {
    list-style: none;
    padding: 0;
    margin: 0;
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    background-color: var(--container-bg-color);
    border: 1px solid var(--popup-border-color);
    border-radius: 8px;
    box-shadow: 0 6px 20px var(--shadow-color);
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px) scale(0.95);
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    min-width: 130px; 
}
.language-options.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
}
.language-options li button {
    display: block;
    width: 100%;
    padding: 10px 15px;
    background-color: transparent;
    color: var(--text-color);
    border: none;
    text-align: left;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
    text-transform: none;
    font-weight: normal;
}
.language-options li button:hover {
    background-color: var(--input-bg-color);
    color: var(--primary-color);
    transform: none; 
    box-shadow: none; 
}
.language-options li button.active-lang {
    background-color: var(--accent-color);
    color: white;
    font-weight: bold;
}
.language-options li button.active-lang:hover {
    background-color: var(--secondary-color);
}
.home-button-container {
    position: fixed;
    bottom: 90px; 
    right: 20px;  
    z-index: 1000; 
}
.home-button {
    width: 60px;
    height: 60px; 
    background-color: var(--secondary-color);
    border-radius: 50%; 
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 1.8rem;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s;
}
.home-button:hover {
    transform: scale(1.1);
    background-color: var(--accent-color); 
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3); 
}
.faq-main-title {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    border-top: 1px solid rgba(64, 145, 108, 0.2);
    padding-top: 2rem;
}

.faq-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.faq-item {
    background-color: var(--input-bg-color);
    border: 1px solid rgba(64, 145, 108, 0.1);
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
}

.faq-item:hover {
    border-color: var(--accent-color);
}

.faq-question {
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color);
    cursor: pointer;
    list-style: none; 
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-arrow {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--accent-color);
    transition: transform 0.25s ease;
}

.faq-item[open] .faq-arrow {
    transform: rotate(45deg);
}

.faq-item[open] > summary {
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 1rem 1rem 1rem;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0.8;
}

.download-app-btn {
    display: flex;
    align-items: center;
    gap: 10px; 
    background-color: #FF424D; 
    color: white;
    padding: 10px 20px;
    border-radius: 50px; 
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);

    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    
    margin-bottom: 1.5rem; 
    
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.download-app-btn:hover {
    transform: translateY(-3px); 
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
    background-color: #e63b46; 
}

.download-app-btn svg {
    width: 20px;
    height: 20px;
}