:root {
    /* Color palette */
    --color-primary: #667eea;
    --color-primary-dark: #5568d3;
    --color-secondary: #764ba2;
    --color-text: #2d3748;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-bg-light: #f7fafc;
    --color-border: #e2e8f0;

    /* Status colors */
    --color-success: #48bb78;
    --color-success-bg: #c6f6d5;
    --color-success-text: #22543d;
    --color-error: #f56565;
    --color-error-bg: #fed7d7;
    --color-error-text: #c53030;
    --color-warning-bg: #fff5f5;

    /* Medal colors */
    --color-gold: #d4af37;
    --color-silver: #c0c0c0;
    --color-bronze: #cd7f32;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 20px;
    --spacing-xxl: 24px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Fonts */
    --font-mono: 'Courier New', monospace;

    /* Container heights */
    --audit-max-height: 600px;
    --audit-max-height-mobile: 400px;
}

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

/* Alpine.js x-cloak - hide content until Alpine is ready */
[x-cloak] {
    display: none !important;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    min-height: 100vh;
    padding: var(--spacing-xl);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl);
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    margin-bottom: var(--spacing-xl);
}

h1 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-size: 28px;
}

.subtitle {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xxl);
}

.input-group {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

input[type="text"],
input[type="url"] {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: border-color 0.2s;
}

input[type="text"]:focus,
input[type="url"]:focus {
    outline: none;
    border-color: var(--color-primary);
}

button {
    padding: var(--spacing-md) var(--spacing-xxl);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
}

button:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

button:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--color-text-muted);
}

.spinner {
    border: 3px solid #f3f4f6;
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    animation: slideIn 0.3s ease-out;
}

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

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.card {
    animation: fadeIn 0.3s ease-out;
}

.event-info {
    background: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.event-info h2 {
    color: var(--color-text);
    font-size: 20px;
    margin-bottom: var(--spacing-sm);
}

.event-info p {
    color: var(--color-text-light);
    margin: var(--spacing-xs) 0;
}

.judges-list {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-top: var(--spacing-sm);
}

.results-header {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.calculating-badge {
    font-size: 12px;
    font-weight: 400;
    color: var(--color-primary);
    background: var(--color-bg-light);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    animation: pulse 1.5s ease-in-out infinite;
}

.advanced-mode-badge {
    font-size: 12px;
    font-weight: 600;
    color: #f59e0b;
    background: #fff3cd;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid #f59e0b;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-lg);
}

thead {
    background: var(--color-bg-light);
}

th, td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    color: var(--color-text);
    font-size: 14px;
}

td {
    color: var(--color-text-light);
}

tbody tr:hover {
    background: var(--color-bg-light);
}

/* Row highlighting for improved/worsened placements */
.row-improved {
    background: #d4edda !important;
    animation: slideInRow 0.5s ease-out;
}

.row-worsened {
    background: #f8d7da !important;
    animation: slideInRow 0.5s ease-out;
}

.row-improved:hover {
    background: #c3e6cb !important;
}

.row-worsened:hover {
    background: #f5c6cb !important;
}

@keyframes slideInRow {
    from {
        opacity: 0.5;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.place {
    font-weight: 700;
    color: var(--color-primary);
}

.place-1 { color: var(--color-gold); }
.place-2 { color: var(--color-silver); }
.place-3 { color: var(--color-bronze); }

/* Grayed out column (for Place after recalculation) */
.grayed-out {
    opacity: 0.4;
    color: var(--color-text-muted) !important;
}

.grayed-out .place {
    color: var(--color-text-muted) !important;
}

.grayed-out.place-1,
.grayed-out.place-2,
.grayed-out.place-3 {
    color: var(--color-text-muted) !important;
}

.judge-score {
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* Invalid judge column highlighting */
.invalid-judge-column {
    border: 3px solid var(--color-error) !important;
    background: var(--color-error-bg) !important;
}

.invalid-judge-column .score-input {
    background: var(--color-error-bg);
    border-color: var(--color-error);
}

.bib {
    font-weight: 600;
    color: var(--color-primary);
}

.calculated-place {
    font-weight: 600;
}

.place-match {
    color: var(--color-success);
}

.place-mismatch {
    color: var(--color-error);
    background: var(--color-warning-bg);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.place-improved {
    color: var(--color-success);
    font-weight: 700;
}

.place-worsened {
    color: var(--color-error);
    font-weight: 700;
}

.place-indicator {
    margin-left: 4px;
    font-size: 14px;
}

.calc-details {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 2px;
}

/* Editable scores styles */
.score-input {
    width: 50px;
    padding: var(--spacing-xs);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    transition: border-color 0.2s, background-color 0.2s;
}

.score-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-light);
}

.modified-cell {
    background: #fff3cd;
    border: 3px solid #f59e0b !important;
}

.modified-cell .score-input {
    background: #fff3cd;
    border-color: #f59e0b;
    font-weight: 600;
    color: var(--color-text);
}

.button-group {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.button-group-actions {
    display: flex;
    gap: var(--spacing-md);
}

.btn-recalculate,
.btn-reset,
.btn-advanced-mode {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background 0.2s, transform 0.1s, border-color 0.2s;
}

.btn-recalculate {
    background: var(--color-primary);
    color: white;
    border: none;
}

.btn-recalculate:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-reset {
    background: var(--color-text-muted);
    color: white;
    border: none;
}

.btn-reset:hover {
    background: var(--color-text);
    transform: translateY(-1px);
}

.btn-advanced-mode {
    background: white;
    color: #f59e0b;
    border: 2px solid #f59e0b;
}

.btn-advanced-mode:hover {
    background: #fffbeb;
    transform: translateY(-1px);
}

.btn-advanced-mode.active {
    background: #f59e0b;
    color: white;
    border-color: #f59e0b;
}

.btn-advanced-mode.active:hover {
    background: #d97706;
}

/* Info box for Advanced Mode explanation */
.info-box {
    background: #e0f2fe;
    border-left: 4px solid #0ea5e9;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.6;
    animation: slideIn 0.3s ease-out;
}

.info-box strong {
    color: #0369a1;
}

/* Footer disclaimer */
.footer {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    text-align: center;
}

.footer-disclaimer {
    background: transparent;
    border: none;
    padding: var(--spacing-lg);
    color: white;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.footer-disclaimer strong {
    color: white;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    color: white;
    font-size: 14px;
}

.footer-love {
    font-size: 16px;
    color: white;
    font-weight: 500;
}

.footer-github,
.footer-feedback {
    margin: 0;
    color: white;
}

.footer-links a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
    transition: opacity 0.2s;
}

.footer-links a:hover {
    opacity: 0.8;
}

/* Accessibility improvements */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Audit trail styles */
.audit-subtitle {
    margin-bottom: var(--spacing-lg);
}

/* References styles */
.references-subtitle {
    margin-bottom: var(--spacing-lg);
}

.audit-container {
    max-height: var(--audit-max-height);
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    position: relative;
}

.audit-container::after {
    content: '';
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, var(--color-bg-light), transparent);
    pointer-events: none;
}

.audit-step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: white;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-border);
}

.audit-step-init {
    border-left-color: var(--color-primary);
    background: #f0f4ff;
}

.audit-step-iteration {
    border-left-color: var(--color-text-muted);
}

.audit-step-check {
    border-left-color: #e2e8f0;
}

.audit-step-tie {
    border-left-color: #f59e0b;
    background: #fffbeb;
}

.audit-step-assign {
    border-left-color: var(--color-success);
    background: #f0fdf4;
    font-weight: 500;
}

.audit-step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.audit-step-content {
    flex: 1;
}

.audit-step-message {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.audit-step-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.audit-meta-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-bg-light);
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* Legend styles */
.legend-container {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-md);
    border: 2px solid var(--color-border);
}

.legend-title {
    color: var(--color-text);
    font-size: 18px;
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-sm);
}

.legend-section {
    margin-bottom: var(--spacing-lg);
}

.legend-section:last-child {
    margin-bottom: 0;
}

.legend-section-title {
    color: var(--color-text);
    font-size: 14px;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.legend-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-light);
    font-size: 14px;
    line-height: 1.6;
}

.legend-color {
    display: inline-block;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    border: 2px solid var(--color-border);
}

.legend-color-init {
    background: #f0f4ff;
    border-color: var(--color-primary);
}

.legend-color-iteration {
    background: white;
    border-color: var(--color-text-muted);
}

.legend-color-check {
    background: white;
    border-color: #e2e8f0;
}

.legend-color-tie {
    background: #fffbeb;
    border-color: #f59e0b;
}

.legend-color-assign {
    background: #f0fdf4;
    border-color: var(--color-success);
}

.legend-description {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.legend-description p {
    color: var(--color-text-light);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* References styles */
.references-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.reference-section {
    padding: var(--spacing-lg);
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
}

.reference-title {
    color: var(--color-text);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.reference-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.reference-list li {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.reference-list a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.reference-list a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.reference-list a::before {
    content: "🔗";
    font-size: 14px;
}

.reference-note {
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1.5;
    padding-left: 22px;
}

/* Accessibility - respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .spinner {
        animation: none;
        border-top-color: var(--color-primary);
    }

    .row-improved,
    .row-worsened {
        animation: none;
    }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-md);
    }

    .card {
        padding: var(--spacing-lg);
    }

    .input-group {
        flex-direction: column;
    }

    button {
        width: 100%;
    }

    .audit-container {
        max-height: var(--audit-max-height-mobile);
    }

    .audit-step {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}