/* Western Union UX Case Study — standalone light theme matching the original deck */

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

:root {
    --wu-yellow: #FFDD03;
    --wu-black: #111111;
    --wu-navy: #1F2733;
    --wu-blue: #4E8FB5;
    --text-dark: #171717;
    --text-gray: #4b5563;
    --bg-light-blue: #EAF2FB;
    --bg-gray: #F4F5F7;
    --green: #1FA971;
    --orange: #F2A93B;
    --gray-3: #7F7F7F;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #ffffff;
    color: var(--text-gray);
    line-height: 1.65;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

a { text-decoration: none; color: inherit; }

/* Hero */
.wu-hero {
    background: var(--wu-yellow);
    position: relative;
    overflow: hidden;
    padding: 56px 0;
}

.wu-dots {
    position: absolute;
    top: 24px;
    right: 40px;
    width: 140px;
    height: 100px;
    background-image: radial-gradient(circle, rgba(17,17,17,0.55) 2px, transparent 2px);
    background-size: 18px 18px;
    opacity: 0.5;
}

.wu-hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.wu-logo {
    height: 52px;
    width: auto;
    margin-bottom: 48px;
    display: block;
}

.wu-hero-icons {
    display: flex;
    gap: 12px;
    margin-bottom: 28px;
}

.wu-hero-icons img {
    height: 48px;
    width: auto;
    display: block;
}

.wu-hero-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--wu-black);
    line-height: 1.15;
    margin-bottom: 14px;
}

.wu-hero-subtitle {
    font-size: 17px;
    font-weight: 500;
    color: #2b2b2b;
    margin-bottom: 32px;
}

.wu-case-study-tag {
    margin-bottom: 44px;
}

.wu-case-study-tag img {
    height: 60px;
    width: auto;
    display: block;
}

.wu-role {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 20px;
    align-items: baseline;
    font-size: 15px;
    color: var(--wu-black);
}

.wu-role-label { font-weight: 700; margin-right: -4px; }
.wu-role span:not(.wu-role-label) { position: relative; padding-left: 14px; }
.wu-role span:not(.wu-role-label)::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    background: var(--wu-black);
    border-radius: 50%;
}

.wu-hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Sections */
.wu-section {
    padding: 72px 0;
}

.wu-no-pad-top { padding-top: 0; }
.wu-no-pad-bottom { padding-bottom:0;}

.wu-bg-white { background: #ffffff; }
.wu-bg-gray { background: var(--bg-gray); }
.wu-bg-lightblue { background: var(--bg-light-blue); }

.wu-h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--wu-black);
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

.wu-h2-underline {
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 8px;
}

.wu-h2-sub {
    font-weight: 800;
}

.wu-h2-link {
    transition: color 0.15s ease;
}

.wu-h2-link:hover {
    color: #1E4FD6;
}

.wu-h3 {
    font-size: 21px;
    font-weight: 800;
    color: var(--wu-black);
    margin: 36px 0 16px;
}

.wu-h3-tight { margin-top: 0; margin-bottom: 12px; }

.wu-p {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 16px;
    max-width: 900px;
}

.wu-p-bold { color: var(--text-dark); font-weight: 600; }

.wu-p strong { color: var(--text-dark); }

/* Stats grid */
.wu-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 28px;
}

.wu-stat-box {
    background: var(--bg-gray);
    border-radius: 10px;
    padding: 22px 24px;
}

.wu-stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--wu-black);
    margin-bottom: 6px;
}

.wu-stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

/* Problem vs Solution */
.wu-vs-grid {
    display: grid;
    grid-template-columns: 1fr 90px 1fr;
    gap: 24px;
    align-items: stretch;
}

.wu-vs-heading {
    font-size: 24px;
    font-weight: 800;
    color: var(--wu-black);
    padding-left: 14px;
    border-left: 5px solid;
    margin-bottom: 16px;
}

.wu-vs-heading-problem { border-color: var(--orange); }
.wu-vs-heading-solution { border-color: var(--green); }

.wu-vs-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.wu-vs-icon img { width: 100%; max-width: 90px; height: auto; object-fit: contain; margin: 0 auto; }

.wu-list { list-style: none; }

.wu-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 14px;
    font-size: 15px;
    color: var(--text-gray);
}

.wu-list-minus li::before {
    content: '\2212';
    position: absolute;
    left: 0;
    top: -1px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--orange);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wu-list-check li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    top: -1px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--green);
    color: #fff;
    font-weight: 700;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.wu-list-plain {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 24px;
}

.wu-list-plain li {
    padding-left: 4px;
    font-size: 15px;
}

.wu-list-plain li::before { content: none; }

/* Image panels */
.wu-image-panel {
    background: var(--bg-gray);
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    margin-top: 24px;
}

.wu-image-panel img {
    width: 100%;
    min-width: 640px;
    height: auto;
    display: block;
}

.wu-image-panel-dark { background: var(--wu-navy); }
.wu-image-panel-plain { background: transparent; padding: 0; }

.wu-link-row {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 20px;
    padding: 18px 20px;
    background: var(--bg-light-blue);
    border-radius: 8px;
}

.wu-link-row-center {
    justify-content: center;
    background: var(--bg-light-blue);
    padding: 18px 20px;
    border-radius: 8px;
}

.wu-link {
    font-size: 15px;
    font-weight: 700;
    color: #1E4FD6;
    text-decoration: underline;
}

.wu-link-divider {
    width: 1px;
    background: rgba(0,0,0,0.15);
}

.wu-cta-row {
    display: flex;
    justify-content: center;
    margin-top: 4px;
}

.wu-link-btn {
    background: #1E4FD6;
    color: #fff !important;
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    padding: 14px 32px;
    border-radius: 8px;
    display: inline-block;
    transition: background 0.15s ease;
}

.wu-link-btn:hover {
    background: #17399e;
}

/* Methodology box */
.wu-methodology-box {
    margin-top: 20px;
    background: var(--bg-light-blue);
    border-radius: 14px;
    padding: 32px 0 0 32px;
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 24px;
    align-items: end;
    overflow: hidden;
}

.wu-methodology-list {
    padding-bottom: 32px;
}

.wu-method-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 15.5px;
    color: var(--text-gray);
}

.wu-method-arrow {
    background: var(--green);
    color: #fff;
    width: 22px;
    height: 22px;
    min-width: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.wu-method-sub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding-left: 34px;
    font-size: 14.5px;
    color: var(--text-gray);
}

.wu-method-sub-title { font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }

.wu-methodology-image {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    height: 100%;
}

.wu-methodology-image img { width: 100%; height: auto; display: block; }

/* Key Research Insights */
.wu-insights-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: start;
    margin-top: 8px;
}

.wu-insights-image {
    display: flex;
    justify-content: flex-end;
}

.wu-insights-image img { width: 100%; max-width: 340px; height: auto; }

.wu-insight-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 16px;
}

.wu-insight-arrow {
    background: var(--green);
    color: #fff;
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    margin-top: 2px;
}

.wu-insight-item .wu-p { margin-bottom: 0; }

/* Head to head */
.wu-h2h-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 40px;
    align-items: center;
    margin-top: 40px;
}

.wu-pie-wrap { display: flex; justify-content: center; }

.wu-pie { width: 100%; max-width: 320px; height: auto; }

.wu-why-title { font-size: 19px; font-weight: 800; color: var(--text-dark); margin-bottom: 14px; }

.wu-why-panel {
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 14px;
}

.wu-why-panel-head {
    padding: 10px 16px;
    font-weight: 700;
    font-size: 14px;
}

.wu-why-panel ul {
    list-style: disc;
    padding: 14px 16px 16px 32px;
    font-size: 13.5px;
    line-height: 1.6;
}

.wu-why-panel ul li { margin-bottom: 8px; }

.wu-why-panel-1 { background: #000000; }
.wu-why-panel-1 .wu-why-panel-head { background: #424242; color: var(--wu-yellow); }
.wu-why-panel-1 ul { color: #e5e5e5; }

.wu-why-panel-2 { background: var(--wu-yellow); }
.wu-why-panel-2 .wu-why-panel-head { background: var(--wu-yellow); color: var(--wu-black); }
.wu-why-panel-2 ul { color: #171717; }

.wu-why-panel-3 { background: var(--gray-3); }
.wu-why-panel-3 .wu-why-panel-head { background: #757575; color: #fff; }
.wu-why-panel-3 ul { color: #fff; }

/* User reactions */
.wu-reaction-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 36px;
    align-items: start;
    margin-top: 8px;
}

.wu-reaction-block { margin-bottom: 22px; }

.wu-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    margin-right: 10px;
    vertical-align: middle;
}

.wu-icon-plus { background: var(--green); }
.wu-icon-minus { background: var(--orange); }
.wu-icon-check { background: var(--green); font-size: 11px; }

.wu-reaction-image img { width: 100%; height: auto; }

/* Bar chart */
.wu-bar-chart {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
    margin-top: 40px;
    align-items: end;
}

.wu-bar-group { display: flex; flex-direction: column; align-items: center; }

.wu-bars {
    display: flex;
    align-items: flex-end;
    gap: 5px;
    height: 180px;
    width: 100%;
    justify-content: center;
}

.wu-bar {
    width: 22%;
    height: calc(var(--v) * 1%);
    border-radius: 4px 4px 0 0;
    position: relative;
    display: flex;
    justify-content: center;
}

.wu-bar span {
    position: absolute;
    top: -22px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-dark);
    white-space: nowrap;
}

.wu-bar-1 { background: var(--wu-black); }
.wu-bar-2 { background: var(--wu-yellow); }
.wu-bar-3 { background: var(--gray-3); }

.wu-bar-caption {
    margin-top: 14px;
    font-size: 12.5px;
    text-align: center;
    color: var(--text-gray);
    font-weight: 600;
    min-height: 34px;
}

.wu-legend {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-top: 20px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 14px;
}

.wu-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

.wu-legend-swatch {
    width: 16px;
    height: 16px;
    border-radius: 3px;
    display: inline-block;
}

.wu-swatch-1 { background: var(--wu-black); }
.wu-swatch-2 { background: var(--wu-yellow); }
.wu-swatch-3 { background: var(--gray-3); }

/* Business impact */
.wu-impact-card {
    background: #ffffff;
    border-radius: 14px;
    padding: 40px 44px;
}

.wu-impact-list { list-style: none; }

.wu-impact-list li {
    display: flex;
    align-items: center;
    font-size: 17px;
    color: var(--text-gray);
    padding: 14px 0;
}

.wu-impact-list li:last-child { border-bottom: none; }

.wu-impact-list strong {
    color: var(--text-dark);
    font-size: 19px;
    margin-right: 6px;
}

/* Thanks for watching */
.wu-thanks-card {
    background: #ffffff;
    border-radius: 14px;
    padding: 40px 44px 0px;
    text-align: center;
}

.wu-thanks {
    font-size: 32px;
    font-weight: 800;
    color: var(--wu-black);
}

/* Footer */
.wu-footer {
    /* background: var(--bg-light-blue); */
    padding: 40px 0;
    text-align: center;
}

.wu-footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px;
    margin-bottom: 24px;
}

.wu-footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #1E4FD6;
    text-decoration: underline;
}

.wu-footer-links svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.wu-copyright { font-size: 13px; color: var(--text-gray); }

/* Responsive */
@media (max-width: 900px) {
    .wu-hero-inner { grid-template-columns: 1fr; }
    .wu-hero-image { max-width: 320px; margin: 32px auto 0; }
    .wu-vs-grid { grid-template-columns: 1fr; }
    .wu-vs-icon { padding: 10px 0; }
    .wu-h2h-grid { grid-template-columns: 1fr; }
    .wu-insights-grid { grid-template-columns: 1fr; }
    .wu-insights-image { max-width: 320px; margin: 0 auto; }
    .wu-reaction-grid { grid-template-columns: 1fr; }
    .wu-reaction-image { max-width: 300px; margin: 0 auto; }
    .wu-methodology-box { grid-template-columns: 1fr; padding: 32px; }
    .wu-methodology-list { padding-bottom: 0; }
    .wu-methodology-image { height: auto; justify-content: center; }
    .wu-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .wu-bar-chart { grid-template-columns: repeat(3, 1fr); gap: 24px 12px; }
}

@media (max-width: 560px) {
    .wu-hero-title { font-size: 30px; }
    .wu-case-study-tag img { height: 44px; }
    .wu-h2 { font-size: 24px; }
    .wu-stats-grid { grid-template-columns: 1fr 1fr; }
    .wu-bar-chart { grid-template-columns: repeat(2, 1fr); }
    .wu-link-row { flex-direction: column; gap: 12px; }
    .wu-link-divider { display: none; }
    .wu-dots { display: none; }
}