:root {
    /* HumanKind Brand Tokens — Light Theme */
    --hk-bg: #F8FAFC;
    --hk-bg-alt: #F1F5F9;
    --hk-card-bg: #FFFFFF;
    --hk-border: rgba(229, 231, 235, 1);
    --hk-border-strong: rgba(209, 213, 219, 1);

    /* Functional colors */
    --hk-primary: #4F46E5;
    --hk-primary-hover: #4338CA;
    --hk-accent: #4F46E5;
    --hk-accent-hover: #4338CA;
    --hk-success: #22C55E;
    --hk-error: #d4183d;
    --hk-warning: #f59e0b;

    /* Typography */
    --hk-text: #0F172A;
    --hk-text-muted: #475569;
    --hk-text-dim: #64748B;

    /* Layout & Component Props */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition-base: 150ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Player Portal design token aliases */
    --bg: var(--hk-bg);
    --surface: var(--hk-card-bg);
    --surface-muted: var(--hk-bg-alt);
    --text-primary: var(--hk-text);
    --text-secondary: var(--hk-text-muted);
    --text-light: #F1F5F9;
    --accent: var(--hk-primary);
    --accent-soft: rgba(79, 70, 229, 0.12);
    --accent-2: #14B8A6;
    --accent-2-soft: rgba(20, 184, 166, 0.12);
    --accent-purple: #A855F7;
    --accent-purple-soft: rgba(168, 85, 247, 0.12);
    --accent-green: #22C55E;
    --accent-green-soft: rgba(34, 197, 94, 0.12);
    --accent-pink: #EC4899;
    --accent-pink-soft: rgba(236, 72, 153, 0.12);
    --border: var(--hk-border);
    --radius: 0px;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--hk-bg);
    color: var(--hk-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

a {
    color: var(--hk-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--hk-primary-hover);
}

h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--hk-text);
}

h1 { font-size: 2.25rem; margin-bottom: 2rem; }
h2 { font-size: 1.5rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.25rem; margin-bottom: 1rem; }

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.main-content {
    padding: 3rem 0;
}

/* Navigation */
.nav {
    background-color: var(--hk-card-bg);
    border-bottom: 1px solid var(--hk-border);
    padding: 0.875rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.nav__brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--hk-text);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: -0.01em;
}

.nav__links {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    align-items: center;
}

.nav__link {
    color: var(--hk-text-muted);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0.875rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.nav__link:hover {
    color: var(--hk-text);
    background-color: var(--hk-bg-alt);
}

.nav__link--active {
    color: var(--hk-text);
    background-color: var(--hk-bg-alt);
}

/* Components */
.card {
    background-color: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.card__title {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
    font-weight: 600;
    color: var(--hk-text);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    min-height: 44px;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-base);
    border: 1px solid transparent;
    font-size: 0.875rem;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn--primary {
    background-color: var(--hk-primary);
    color: white;
}

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

.btn--accent {
    background-color: var(--hk-accent);
    color: white;
}

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

.btn--outline {
    background-color: transparent;
    border-color: var(--hk-border-strong);
    color: var(--hk-text);
}

.btn--outline:hover {
    background-color: var(--hk-bg-alt);
    border-color: var(--hk-text-dim);
}

.btn--success {
    background-color: var(--hk-success);
    color: white;
}

.btn--sm {
    padding: 0.4rem 0.75rem;
    min-height: 36px;
    font-size: 0.8125rem;
    border-radius: var(--radius-sm);
}

.btn:active {
    transform: translateY(0);
}

.w-full { width: 100%; }
.flex-col { flex-direction: column; }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* Forms */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--hk-text-muted);
}

.form-input, .input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--hk-border-strong);
    background: var(--hk-card-bg);
    color: var(--hk-text);
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-input:focus, .input:focus {
    outline: none;
    border-color: var(--hk-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.form-input::placeholder {
    color: var(--hk-text-dim);
}

/* Select Styling */
select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

/* Table Styling */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--hk-border);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.table th {
    background-color: var(--hk-bg-alt);
    color: var(--hk-text-muted);
    font-weight: 600;
    text-align: left;
    padding: 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--hk-border);
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--hk-border);
    vertical-align: middle;
}

.table tr:last-child td {
    border-bottom: none;
}

.table tr:hover td {
    background-color: rgba(0, 0, 0, 0.015);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge--success {
    background-color: var(--accent-green-soft);
    color: #16a34a;
}

.badge--warning {
    background-color: rgba(245, 158, 11, 0.12);
    color: #b45309;
}

/* Tabs */
.tabs {
    display: inline-flex;
    padding: 0.25rem;
    background-color: var(--hk-bg-alt);
    border: 1px solid var(--hk-border);
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    gap: 0.25rem;
}

.tab-link {
    padding: 0.5rem 1rem;
    border-radius: calc(var(--radius-md) - 2px);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--hk-text-muted);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    background: transparent;
}

.tab-link:hover {
    color: var(--hk-text);
}

.tab-link--active {
    color: var(--hk-text) !important;
    background-color: var(--hk-card-bg) !important;
    box-shadow: var(--shadow-sm);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border: 1px solid transparent;
}

.alert--error {
    background-color: rgba(212, 24, 61, 0.06);
    border-color: rgba(212, 24, 61, 0.2);
    color: #b91c1c;
}

.alert--warning {
    background-color: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.2);
    color: #b45309;
}

/* Utilities */
.hidden { display: none !important; }
.text-muted { color: var(--hk-text-muted); }
.text-dim { color: var(--hk-text-dim); }
.text-accent { color: var(--hk-accent); }
.text-success { color: var(--hk-success); }
.text-error { color: var(--hk-error); }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.flex { display: flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.flex-1 { flex: 1; }
.uppercase { text-transform: uppercase; }
.italic { font-style: italic; }

code {
    background-color: var(--hk-bg-alt);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875em;
    color: var(--hk-primary);
    border: 1px solid var(--hk-border);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.35s ease-out forwards;
}

/* Selection Grid */
.selection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 2rem;
    justify-items: stretch;
}

.selection-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--hk-card-bg);
    border: 1px solid var(--hk-border-strong);
    border-radius: var(--radius-md);
    padding: 1.25rem 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
}

.selection-box:hover {
    border-color: var(--hk-primary);
    background-color: var(--hk-bg-alt);
}

.selection-box--active {
    border-color: var(--hk-primary);
    background-color: var(--accent-soft);
    box-shadow: 0 0 0 1px var(--hk-primary);
}

.selection-box__number {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--hk-text);
}

.selection-box__label {
    font-size: 0.7rem;
    color: var(--hk-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

.selection-box--active .selection-box__number {
    color: var(--hk-primary);
}

/* Character List */
.character-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
    list-style: none;
}

.character-item {
    background-color: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.character-item__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--hk-text-dim);
    flex-shrink: 0;
}

.character-item--active .character-item__dot {
    background-color: var(--hk-accent);
}

/* ── Player Portal semantic classes ───────────────────────────────────── */

/* Typography */
.text-display {
    font-size: 3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--hk-text);
}

.text-title {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--hk-text);
}

.text-body {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--hk-text-muted);
}

.text-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--hk-text-muted);
}

.text-meta {
    font-size: 0.875rem;
    color: var(--hk-text-muted);
}

.text-highlight {
    color: var(--hk-accent);
}

/* Layout */
.page-shell {
    min-height: 100vh;
    background-color: var(--hk-bg);
    color: var(--hk-text);
}

.content-column {
    max-width: 48rem;
    margin-left: auto;
    margin-right: auto;
    padding: var(--space-lg);
}

.hero-block {
    padding-top: var(--space-2xl);
    padding-bottom: var(--space-xl);
}

/* Panels */
.section-panel {
    background: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-radius: var(--radius-lg);
}

.section-panel--soft {
    background: var(--hk-bg-alt);
    border: none;
    border-radius: var(--radius-lg);
}

.section-panel--secret {
    background: #FFF7ED;
    border: 1px solid rgba(234, 88, 12, 0.1);
    border-radius: var(--radius-lg);
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    background: var(--hk-bg-alt);
    color: var(--hk-text-muted);
}

.tag--accent {
    background: var(--accent-soft);
    color: var(--hk-primary);
}

.tag--public {
    background: var(--accent-purple-soft);
    color: var(--accent-purple);
}

.tag--secret {
    background: var(--accent-pink-soft);
    color: var(--accent-pink);
}

.tag--info {
    background: var(--accent-2-soft);
    color: var(--accent-2);
}

.tag--success {
    background: var(--accent-green-soft);
    color: #16a34a;
}

/* Stat rows */
.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--hk-border);
}

.stat-row:last-child {
    border-bottom: none;
}

.list-item-zebra:nth-child(even) {
    background: var(--hk-bg-alt);
}

/* Action row */
.action-row {
    display: flex;
    color: var(--text-light);
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--hk-primary);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

/* Semantic buttons */
.button-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    background: var(--hk-primary);
    color: #ffffff;
    border-radius: var(--radius);
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s;
}

.button-primary:hover {
    opacity: 0.85;
}

.button-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    background: var(--hk-card-bg);
    color: var(--hk-text);
    border: 1px solid var(--hk-border);
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.button-secondary:hover {
    background: var(--hk-bg-alt);
}

.score-block {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-radius: 999px;
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    .nav__brand span { display: none; }
    .card { padding: 1.5rem; }
    .main-content { padding: 1.5rem 0; }
}

@media (max-width: 600px) {
    .selection-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .card { padding: 1rem; }
    .nav__links {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .nav__links::-webkit-scrollbar { display: none; }
    .nav__link { padding: 0.5rem 0.5rem; }
}