:root {
    --color-sky-50: #f3fbff;
    --color-sky-100: #e7f5fb;
    --color-sky-200: #c7e5f2;
    --color-sky-300: #7ccceb;
    --color-sky-400: #20a9d8;
    --color-sky-500: #087da8;
    --color-lime-100: #f1f9e9;
    --color-lime-300: #b8df78;
    --color-lime-500: #5aa51a;
    --color-yellow-100: #fff8dc;
    --color-yellow-300: #f3cf55;
    --color-coral-100: #fff2ed;
    --color-coral-400: #ef8458;
    --color-coral-500: #d95d36;
    --color-navy-900: #10243e;
    --color-navy-700: #254463;
    --color-text: #142238;
    --color-muted: #627184;
    --color-border: #d8e3ec;
    --color-border-strong: #b8cad8;
    --color-surface: #ffffff;
    --color-surface-soft: #f6faff;
    --color-page: #f7fafc;
    --color-focus: #ffbf2f;
    --bg: var(--color-page);
    --surface: var(--color-surface);
    --surface-muted: var(--color-surface-soft);
    --border: var(--color-border);
    --text: var(--color-text);
    --muted: var(--color-muted);
    --accent: var(--color-sky-500);
    --accent-dark: var(--color-navy-700);
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-pill: 999px;
    --shadow-sm: 0 4px 14px rgba(16, 36, 62, 0.06);
    --shadow-md: 0 12px 26px rgba(16, 36, 62, 0.1);
    --shadow-ring: 0 0 0 3px rgba(32, 169, 216, 0.18);
    --font-family-base: Arial, Helvetica, sans-serif;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.15rem;
    --font-size-xl: clamp(1.55rem, 2.4vw, 2.2rem);
    --container-max: 1180px;
    --container-pad: clamp(1rem, 3vw, 1.5rem);
    --header-height: 4rem;
    --success-bg: #f1f9e9;
    --success-border: #b8df78;
    --success-text: #285f0f;
    --error-bg: #fff3f0;
    --error-border: #e7aa99;
    --error-text: #8d2c1b;
    --info-bg: #edf8fd;
    --info-border: #a9d7eb;
    --info-text: #174d74;
    --warning-bg: #fff8dc;
    --warning-border: #e7c86b;
    --warning-text: #6d4b00;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 0;
}

body {
    min-width: 0;
    margin: 0;
    overflow-x: hidden;
    background: linear-gradient(180deg, #ffffff 0%, var(--color-page) 38%, #f4f8fb 100%);
    color: var(--color-text);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.5;
}

a {
    color: var(--color-sky-500);
    font-weight: 700;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

a:hover,
a:focus {
    color: var(--color-navy-900);
}

:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
}

h1,
h2,
h3 {
    margin-top: 0;
    margin-bottom: var(--space-2);
    color: var(--color-navy-900);
    line-height: 1.18;
}

h1 {
    font-size: var(--font-size-xl);
}

h2 {
    font-size: 1.35rem;
}

h3 {
    font-size: 1.08rem;
}

p {
    margin-top: 0;
}

img {
    max-width: 100%;
    height: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(216, 227, 236, 0.9);
    box-shadow: 0 2px 12px rgba(16, 36, 62, 0.05);
    backdrop-filter: blur(12px);
}

.nav {
    width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
    margin: 0 auto;
    padding: var(--space-3) 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-3);
    align-items: center;
}

.nav-brand-cluster {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.2rem;
    min-height: 3.25rem;
    flex: 0 0 auto;
}

.nav-powered-by {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-muted);
    line-height: 1.2;
    white-space: nowrap;
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    min-height: 0;
    padding: 0;
    border-radius: var(--radius-md);
    color: var(--color-navy-900);
    text-decoration: none;
}

.nav-logo {
    display: block;
    width: clamp(15.5rem, 19vw, 18.75rem);
    max-height: 4rem;
    object-fit: contain;
}

.nav-logo-mark {
    display: none;
    width: 3rem;
    height: 3rem;
    object-fit: contain;
}

.nav-menu {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-3);
    align-items: center;
    min-width: 0;
}

.nav-links,
.nav-user {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-width: 0;
}

.nav-links {
    overflow: visible;
    padding: var(--space-1);
    flex-wrap: wrap;
}

.nav-user {
    justify-content: flex-end;
    color: var(--color-muted);
    font-size: var(--font-size-sm);
    flex-wrap: wrap;
}

.nav-user strong {
    color: var(--color-navy-900);
}

.nav a:not(.nav-brand) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: 2.2rem;
    padding: 0.36rem 0.58rem;
    border-radius: var(--radius-sm);
    color: var(--color-navy-700);
    font-size: var(--font-size-sm);
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.nav a:not(.nav-brand):hover,
.nav a:not(.nav-brand):focus {
    background: var(--color-surface-soft);
    color: var(--color-navy-900);
}

.nav a.nav-active {
    background: var(--color-sky-100);
    color: var(--color-navy-900);
    box-shadow: inset 3px 0 0 var(--color-sky-400);
}

.nav a.nav-active:hover,
.nav a.nav-active:focus {
    background: var(--color-sky-100);
    color: var(--color-navy-900);
}

.nav-menu-toggle {
    display: none;
    justify-self: end;
    gap: 0.5rem;
    min-height: 2.55rem;
    padding: 0.52rem 0.78rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-navy-900);
    box-shadow: none;
}

.nav-menu-toggle:hover,
.nav-menu-toggle:focus {
    border-color: var(--color-sky-300);
    background: var(--color-surface-soft);
    color: var(--color-navy-900);
}

.nav-menu-icon,
.nav-menu-icon::before,
.nav-menu-icon::after {
    display: block;
    width: 1.05rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
}

.nav-menu-icon {
    position: relative;
}

.nav-menu-icon::before,
.nav-menu-icon::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-menu-icon::before {
    top: -0.36rem;
}

.nav-menu-icon::after {
    top: 0.36rem;
}

.admin-links {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    flex: 0 0 auto;
    padding-left: var(--space-2);
    border-left: 1px solid var(--color-border);
}

.page {
    width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
    margin: 0 auto;
    padding: var(--space-8) 0 3rem;
}

.site-footer {
    width: min(var(--container-max), calc(100% - (var(--container-pad) * 2)));
    margin: 0 auto;
    padding: 0 0 var(--space-8);
    color: var(--color-muted);
    font-size: var(--font-size-sm);
}

.page-header {
    margin-bottom: var(--space-5);
}

.meta,
.muted,
.empty,
.hint,
.feedback-ok,
.feedback-error,
.feedback-info,
.team-code,
.team-group,
.player-email,
.summary-context,
.context,
.muted-note,
.topscorer-meta,
.value-note {
    color: var(--color-muted);
}

.meta {
    margin-bottom: var(--space-6);
}

.feedback-ok {
    color: var(--success-text);
}

.feedback-error {
    color: var(--error-text);
}

.feedback-info {
    color: var(--info-text);
}

.panel,
.card,
.hero,
.insight-card,
.human-ai-card,
.team-card,
.topscorer-card,
details.collapsible {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.panel,
.card,
.hero,
details.collapsible {
    padding: var(--space-5);
    margin-bottom: var(--space-6);
}

.panel-muted {
    background: var(--color-surface-soft);
}

.panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.panel-grid .panel,
.panel-grid .card {
    margin-bottom: 0;
}

.message {
    padding: 0.85rem 1rem;
    margin-bottom: var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: none;
}

.message.success {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success-text);
}

.message.error {
    background: var(--error-bg);
    border-color: var(--error-border);
    color: var(--error-text);
}

.message.info {
    background: var(--info-bg);
    border-color: var(--info-border);
    color: var(--info-text);
}

.message.warning {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

label {
    display: block;
    font-weight: 800;
    margin-bottom: var(--space-1);
    color: var(--color-navy-900);
}

input,
select,
button {
    font: inherit;
}

input,
select {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.65rem 0.78rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text);
}

input:focus,
select:focus {
    border-color: var(--color-sky-400);
    box-shadow: var(--shadow-ring);
    outline: 0;
}

input[readonly] {
    background: var(--color-surface-soft);
}

button,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-height: 2.75rem;
    padding: 0.65rem 1rem;
    border: 1px solid var(--color-sky-500);
    border-radius: var(--radius-sm);
    background: var(--color-sky-500);
    color: #fff;
    cursor: pointer;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 8px 18px rgba(8, 125, 168, 0.16);
}

button:hover,
button:focus,
.button:hover,
.button:focus {
    border-color: var(--color-navy-900);
    background: var(--color-navy-900);
    color: #fff;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.button.secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-navy-900);
    box-shadow: none;
}

.button.secondary:hover,
.button.secondary:focus {
    background: var(--color-sky-100);
    border-color: var(--color-sky-500);
    color: var(--color-navy-900);
}

.actions,
.cta-links,
.link-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.actions {
    margin-top: var(--space-4);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
    gap: var(--space-4);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: 1.9rem;
}

.checkbox-row input,
input[type="checkbox"] {
    width: auto;
    min-height: 0;
    padding: 0;
    accent-color: var(--color-lime-500);
}

.checkbox-row label {
    margin-bottom: 0;
    font-weight: 700;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    box-shadow: none;
}

.table-wrap table {
    margin: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
}

th,
td {
    padding: 0.82rem 0.9rem;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}

th {
    background: var(--color-surface-soft);
    color: var(--color-navy-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
}

tbody tr:nth-child(even) {
    background: var(--color-surface-soft);
}

tbody tr:hover {
    background: var(--color-sky-50);
}

ul {
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.4rem;
}

.empty-state {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    background: var(--color-surface);
}

.badge,
.count-badge,
.rank-badge,
.you-badge,
.ai-badge,
.picked-badge,
.picked-label,
.value-badge,
.team-card-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: var(--radius-pill);
    font-size: var(--font-size-sm);
    font-weight: 800;
    line-height: 1.2;
}

.badge,
.count-badge {
    padding: 0.28rem 0.6rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface-soft);
    color: var(--color-navy-700);
}

.team-label {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.team-flag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 1.35rem;
    height: 0.95rem;
    vertical-align: -0.12rem;
}

.team-flag-img,
.team-flag-fallback {
    width: 100%;
    height: 100%;
    border: 1px solid rgba(16, 35, 63, 0.22);
    border-radius: 2px;
    background: var(--color-surface);
}

.team-flag-img {
    display: block;
    object-fit: cover;
}

.team-flag-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface-soft);
    color: var(--color-text);
    font-size: 0.62rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0;
}

.team-flag-fallback[hidden] {
    display: none;
}

.hero {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(90deg, var(--color-sky-400) 0 0.28rem, transparent 0.28rem),
        var(--color-surface);
}

.hero > * {
    position: relative;
    z-index: 1;
}

.hero-status {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin: var(--space-4) 0;
}

.hero-status span {
    display: inline-flex;
    align-items: center;
    min-height: 2.15rem;
    padding: 0.35rem 0.7rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.85);
}

.leaderboard-table tbody tr.current-user-row,
.team-card.selected,
.topscorer-card.selected {
    background: var(--color-sky-50);
    border-color: var(--color-sky-300);
    box-shadow: inset 3px 0 0 var(--color-sky-400);
}

.rank-badge {
    justify-content: center;
    min-width: 2.3rem;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--color-border);
    background: var(--color-surface-soft);
    color: var(--color-navy-700);
}

.rank-1 .rank-badge {
    background: var(--color-yellow-100);
    border-color: var(--color-yellow-300);
    color: #745100;
}

.rank-2 .rank-badge {
    background: var(--color-sky-100);
    border-color: var(--color-sky-300);
}

.rank-3 .rank-badge {
    background: #f7f0eb;
    border-color: #dec8bd;
    color: #67412e;
}

.you-badge {
    margin-left: 0.45rem;
    padding: 0.14rem 0.48rem;
    background: var(--color-sky-100);
    border: 1px solid var(--color-sky-200);
    color: var(--color-navy-900);
}

.ai-badge {
    margin-left: 0.45rem;
    padding: 0.14rem 0.48rem;
    background: var(--color-lime-100);
    border: 1px solid #cfe9ad;
    color: #245b03;
}

.insight-card,
.human-ai-card,
.team-card,
.topscorer-card {
    padding: 0.9rem 1rem;
}

.insight-label,
.human-ai-label {
    color: var(--color-muted);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.insight-value,
.human-ai-value,
.points-cell,
.points,
.summary-points,
.result,
.formula {
    color: var(--color-navy-900);
    font-weight: 800;
}

.summary-points,
.points-impact {
    color: #167a21;
}

.team-card,
.topscorer-card {
    transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.team-card:hover,
.topscorer-card:hover {
    transform: translateY(-1px);
    border-color: var(--color-sky-300);
    box-shadow: var(--shadow-sm);
}

.team-card label,
.topscorer-card label {
    min-height: 2.75rem;
}

.team-card-badge,
.picked-badge,
.picked-label,
.value-badge.factor-boost {
    background: var(--color-sky-100);
    border: 1px solid var(--color-sky-200);
    color: var(--color-navy-700);
}

.value-badge {
    padding: 0.18rem 0.5rem;
    background: var(--color-sky-50);
    border: 1px solid var(--color-border);
    color: var(--color-navy-700);
}

.selection-status {
    margin-bottom: var(--space-4);
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.selection-status.valid {
    background: var(--success-bg);
    border-color: var(--success-border);
    box-shadow: inset 3px 0 0 var(--color-lime-500);
}

.selection-status.invalid {
    background: var(--warning-bg);
    border-color: var(--warning-border);
    box-shadow: inset 3px 0 0 var(--color-yellow-300);
}

.compact-form,
.inline-form {
    margin: 0.15rem 0.25rem 0.15rem 0;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 900px) {
    .nav-brand-cluster {
        min-height: 2.5rem;
    }

    .nav-brand {
        min-height: 0;
    }

    .nav-logo {
        width: min(13.5rem, 34vw);
        max-height: 3rem;
    }

    .nav-menu {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--space-2);
    }

    .nav-user {
        justify-content: flex-start;
    }

    .admin-links {
        border-left: 0;
        padding-left: 0;
    }
}

@media (max-width: 640px) {
    :root {
        --container-pad: 0.85rem;
    }

    body {
        font-size: 0.96rem;
    }

    .nav {
        grid-template-columns: auto minmax(0, 1fr);
        gap: var(--space-2);
        padding: var(--space-2) 0;
    }

    .nav-logo {
        display: none;
    }

    .nav-logo-mark {
        display: block;
    }

    .nav-menu-toggle {
        display: inline-flex;
    }

    .nav-menu {
        display: none;
        grid-column: 1 / -1;
        grid-template-columns: 1fr;
        gap: var(--space-3);
        width: 100%;
        margin-top: var(--space-2);
        padding: var(--space-3);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        box-shadow: var(--shadow-sm);
    }

    .nav.is-open .nav-menu {
        display: grid;
    }

    .nav-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.15rem;
        padding: 0;
        width: 100%;
    }

    .nav a:not(.nav-brand) {
        justify-content: flex-start;
        width: 100%;
        min-height: 2.6rem;
        padding: 0.58rem 0.72rem;
        white-space: normal;
    }

    .nav a.nav-active {
        box-shadow: inset 3px 0 0 var(--color-sky-400);
    }

    .admin-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.15rem;
        margin-top: var(--space-2);
        padding-top: var(--space-2);
        border-top: 1px solid var(--color-border);
    }

    .nav-user {
        display: grid;
        grid-template-columns: 1fr;
        gap: var(--space-2);
        padding-top: var(--space-3);
        border-top: 1px solid var(--color-border);
    }

    .nav-user span {
        padding: 0 0.72rem;
    }

    .page {
        padding-top: var(--space-5);
    }

    .panel,
    .card,
    .hero,
    details.collapsible {
        padding: var(--space-4);
        margin-bottom: var(--space-4);
    }

    .actions,
    .cta-links,
    .link-row {
        align-items: stretch;
    }

    .actions > button,
    .actions > .button,
    .cta-links > .button {
        width: 100%;
    }

    .checkbox-row {
        margin-top: 0;
    }

    th,
    td {
        padding: 0.68rem;
    }

    .leaderboard-table,
    .responsive-card-table {
        min-width: 0;
    }

    .leaderboard-table thead,
    .responsive-card-table thead {
        display: none;
    }

    .leaderboard-table,
    .leaderboard-table tbody,
    .leaderboard-table tr,
    .leaderboard-table td,
    .responsive-card-table,
    .responsive-card-table tbody,
    .responsive-card-table tr,
    .responsive-card-table td {
        display: block;
        width: 100%;
    }

    .leaderboard-table tr,
    .responsive-card-table tr {
        padding: var(--space-3);
        border-bottom: 1px solid var(--color-border);
    }

    .leaderboard-table td,
    .responsive-card-table td {
        display: flex;
        justify-content: space-between;
        gap: var(--space-3);
        border-bottom: 0;
        padding: 0.38rem 0;
    }

    .leaderboard-table td::before,
    .responsive-card-table td::before {
        content: attr(data-label);
        flex: 0 0 7rem;
        color: var(--color-muted);
        font-weight: 800;
    }
}

@media (max-width: 430px) {
    .nav {
        width: calc(100% - 1rem);
    }

    .nav-logo-mark {
        width: 2.65rem;
        height: 2.65rem;
    }

    .page,
    .site-footer {
        width: calc(100% - 1rem);
    }

    h1 {
        font-size: 1.55rem;
    }
}