:root {
    --primary-blue: #0066cc;
    --light-blue: #0066ff;
    --dark-blue: #004499;
    --white: #ffffff;
    --silver: #c0c0c0;
    --accent-blue: #0052cc;
}
body {
    background-image: url('12logo.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--white);
    margin: 0;
    padding: 0;
    position: relative;
    overflow-x: hidden;
}
.main-container {
    position: relative;
    z-index: 1;
}
.main-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 30px 20px;
}
.input-group-custom {
    margin-bottom: 20px;
}
.input-label {
    display: block;
    font-size: 14px;
    color: var(--white);
    margin-bottom: 8px;
    font-weight: 500;
}
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.currency-symbol {
    position: absolute;
    left: 12px;
    color: var(--light-blue);
    font-weight: bold;
    font-size: 18px;
    z-index: 1;
}
.form-control-custom {
    width: 100%;
    padding: 12px 12px 12px 35px;
    border: 4px solid var(--light-blue);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}
.form-control-custom:focus {
    outline: none;
    border-color: var(--accent-blue);
    border-width: 4px;
    background: rgba(51, 153, 255, 0.4);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.3);
    color: var(--white);
    font-weight: 700;
}
.form-control-custom::placeholder {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}
.logo-section {
    margin-bottom: 30px;
    padding: 20px 0;
}
.logo-img {
    max-width: 200px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}
.converter-section {
    background: rgba(30, 30, 30, 0.95);
    padding: 20px;
    border-radius: 10px;
    border: 4px solid var(--light-blue);
}
.converter-section .section-title {
    color: var(--white);
    margin-bottom: 20px;
}
.conversion-result {
    margin-bottom: 20px;
}
.result-label {
    display: block;
    font-size: 14px;
    color: var(--white);
    margin-bottom: 8px;
    font-weight: 500;
}
.rate-info {
    font-size: 12px;
    color: var(--silver);
    margin-bottom: 8px;
    opacity: 0.9;
}
.rate-info span {
    font-weight: bold;
    color: var(--light-blue);
}
.result-box {
    padding: 12px;
    background: rgba(51, 153, 255, 0.2);
    border: 2px solid var(--light-blue);
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    color: var(--white);
    text-align: center;
}
.btn-convertir {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    border: none;
    border-radius: 8px;
    color: var(--white);
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}
.btn-convertir:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}
.btn-convertir:active {
    transform: translateY(0);
}
.whatsapp-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--white);
    font-size: 32px;
}
.whatsapp-button:hover {
    background: #20BA5A;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
    color: var(--white);
    text-decoration: none;
}
.whatsapp-button:active {
    transform: scale(0.95);
}
@media (max-width: 576px) {
    .main-container {
        padding: 15px;
    }
    .logo-text {
        font-size: 20px;
    }
    .section-title {
        font-size: 18px;
    }
    .phone-number {
        font-size: 16px;
    }
    .whatsapp-button {
        width: 55px;
        height: 55px;
        font-size: 28px;
        bottom: 15px;
        right: 15px;
    }
}