:root {
    --wu-yellow: #FFDA1A;
    --wu-black: #000000;
    --wu-gray: #333333;
    --wu-light-gray: #F5F5F5;
    --wu-white: #FFFFFF;
    --wu-blue: #007C89; /* Sometimes used for links/buttons */
    --wu-blue-hover: #00626d;
    --wu-slate: #5C7080; /* Gray text color often used by WU */
}

body {
    font-family: 'Open Sans', sans-serif; /* Fallback */
    margin: 0;
    padding: 0;
    background-color: #F0F0F0; /* Slightly gray background for the tracking page body usually */
    color: var(--wu-gray);
}

/* Header */
header {
    background-color: var(--wu-black);
    color: var(--wu-white);
    padding: 15px 0;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--wu-white);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--wu-yellow);
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: var(--wu-white);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}

nav ul li a:hover {
    text-decoration: underline;
}

/* Hero Section */
.hero {
    background-color: var(--wu-black);
    color: var(--wu-white);
    padding: 50px 0 80px;
    background-image: linear-gradient(to bottom, #000000 0%, #1a1a1a 100%);
}

.hero-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
}

.hero-text {
    flex: 1;
    padding-right: 40px;
    min-width: 300px;
}

.hero-text h1 {
    font-size: 48px;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 30px;
}

.hero-btn {
    display: inline-block;
    background-color: var(--wu-yellow);
    color: var(--wu-black);
    padding: 12px 30px;
    font-weight: bold;
    text-decoration: none;
    border-radius: 30px;
    transition: background-color 0.3s;
}

.hero-btn:hover {
    background-color: #e6c200;
}

/* Transfer Widget */
.transfer-widget {
    background-color: var(--wu-white);
    color: var(--wu-black);
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.widget-header {
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 10px;
}

.widget-header h2 {
    font-size: 20px;
    margin: 0;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 5px;
    color: #666;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
}

.btn-primary {
    width: 100%;
    background-color: var(--wu-blue);
    color: var(--wu-white);
    border: none;
    padding: 15px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 30px;
    cursor: pointer;
    margin-top: 10px;
}

.btn-primary:hover {
    background-color: #00626d;
}

/* Features Section */
.features {
    padding: 60px 0;
    background-color: var(--wu-white);
}

.features-grid {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.feature-item {
    flex: 1;
    min-width: 250px;
    text-align: center;
    padding: 20px;
}

.feature-icon {
    font-size: 40px;
    color: var(--wu-black);
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

/* Tracking Form Specifics */
.tracking-wrapper {
    max-width: 600px;
    margin: 40px auto;
    text-align: center;
}

.tracking-title {
    font-size: 32px;
    font-weight: 300;
    margin-bottom: 20px;
    color: var(--wu-black);
    text-align: left;
}

.tracking-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    background: #fff;
    border-radius: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.tracking-tab {
    flex: 1;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    border-bottom: 4px solid transparent;
    color: var(--wu-blue);
    font-weight: 600;
    background: #fff;
    transition: all 0.2s;
}

.tracking-tab.active {
    border-bottom: 4px solid #333; /* Dark line for active tab in some designs, or blue */
    border-bottom-color: #2D6C8F; /* Using a darker blue/slate */
    color: var(--wu-black);
}

.tracking-tab:hover {
    background-color: #f4f4f4;
}

.tracking-instruction {
    font-size: 16px;
    color: var(--wu-gray);
    margin-bottom: 10px;
    text-align: center;
}

.tracking-form-box {
    background: #fff;
    padding: 30px 40px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.mtcn-input-group {
    margin-bottom: 0;
    position: relative;
}

.mtcn-input {
    width: 100%;
    padding: 10px;
    font-size: 24px;
    text-align: center;
    border: none;
    border-bottom: 1px solid #ccc; /* Dashed line effect is usually a placeholder */
    outline: none;
    letter-spacing: 4px;
    color: #333;
}

.mtcn-input:focus {
    border-bottom: 2px solid var(--wu-blue);
}

.mtcn-input::placeholder {
    color: #ddd;
    font-size: 24px;
    letter-spacing: 4px;
}

.continue-btn {
    width: 100%;
    background-color: #7285A5; /* Muted blue/purple */
    color: white;
    font-size: 18px;
    padding: 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: normal;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.continue-btn:hover {
    background-color: #5e6f8c;
}

.cant-find-link {
    display: block;
    margin-top: 20px;
    color: var(--wu-blue);
    text-decoration: none;
    font-size: 14px;
}

.cant-find-link:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: #FFFFFF; /* White background */
    color: #000000; /* Black text */
    padding: 60px 0 40px;
    font-size: 14px;
    border-top: 5px solid var(--wu-yellow);
    box-sizing: border-box;
}

footer * {
    box-sizing: border-box;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
    border-bottom: 1px solid #E0E0E0; /* Lighter border for white bg */
    padding-bottom: 30px;
}

.footer-column {
    flex: 1;
    min-width: 180px;
    margin-bottom: 20px;
    padding-right: 20px;
}

.footer-column h4 {
    margin-bottom: 20px;
    color: #000000; /* Black headings */
    text-transform: uppercase;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #333333; /* Dark gray links */
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #000000;
    text-decoration: underline;
}

/* Social & App Row */
.footer-social-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #E0E0E0;
}

.footer-apps {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-apps span {
    font-weight: bold;
    font-size: 16px;
    margin-right: 10px;
    color: #000000;
}

.app-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #000000; /* Black buttons */
    color: white;
    padding: 8px 15px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 13px;
    transition: background 0.3s;
    white-space: nowrap;
}

.app-btn:hover {
    background-color: #333333;
}

.footer-social {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

.footer-social a {
    color: #000000; /* Black icons */
    font-size: 20px;
    transition: color 0.3s;
}

.footer-social a:hover {
    color: #666666;
}

/* Legal Text */
.footer-legal-text {
    font-size: 11px;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: justify;
}

.footer-bottom {
    padding-top: 10px;
    text-align: center;
    color: #666666;
    font-size: 12px;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-links {
        flex-direction: column;
    }
    
    .footer-social-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .footer-apps {
        flex-wrap: wrap;
    }
}