/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4a90e2;
    --primary-dark: #357abd;
    --secondary-color: #50c878;
    --background: #f5f7fa;
    --surface: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-color: #e1e8ed;
    --error-color: #e74c3c;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: var(--primary-color);
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

/* Layout */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background-color: var(--surface);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo:hover {
    color: var(--primary-dark);
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.app-main {
    flex: 1;
}

.app-footer {
    background-color: var(--surface);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

/* Home Page */
.home-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.hero {
    text-align: center;
    padding: 3rem 0 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.content {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.info-section {
    margin-bottom: 2rem;
}

.info-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.info-section ol {
    margin-left: 1.5rem;
}

.info-section li {
    margin-bottom: 0.5rem;
}

.cta-section {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.btn-primary-large {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary-large:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.note {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* Comparison Page */
.comparison-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.comparison-content {
    width: 100%;
}

.instructions {
    text-align: center;
    margin-bottom: 3rem;
}

.instructions h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.instructions p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.word-pair {
    display: flex;
    flex-direction: row;
    gap: 1.5rem;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.word-button {
    background: var(--surface);
    border: 3px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    flex: 1;
    min-width: 150px;
    min-height: 140px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.word-button:hover:not(:disabled) {
    border-color: var(--primary-color);
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.word-button:active:not(:disabled) {
    transform: scale(0.98);
}

.word-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.word-text {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.or-divider {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.tie-button {
    display: block;
    background-color: var(--secondary-color);
    color: white;
    border: 3px solid var(--secondary-color);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    margin: 0 auto;
    width: 100%;
    max-width: 300px;
}

.tie-button:hover:not(:disabled) {
    background-color: #45b570;
    border-color: #45b570;
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.tie-button:active:not(:disabled) {
    transform: scale(0.98);
}

.tie-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.stats {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stats strong {
    color: var(--primary-color);
}

/* Loading state */
.loading {
    text-align: center;
    padding: 4rem 2rem;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Error state */
.error {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.error h2 {
    color: var(--error-color);
    margin-bottom: 1rem;
}

.retry-button {
    margin-top: 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.retry-button:hover {
    background-color: var(--primary-dark);
}

/* Dashboard */
.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.dashboard-container h1 {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.dashboard-content {
    background: var(--surface);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.date-info {
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--background);
    border-radius: 8px;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

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

.btn-secondary {
    background-color: var(--text-secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: #6c7a7b;
}

.words-table h2 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.table-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-input {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    width: 300px;
    max-width: 100%;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.result-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.words-table-grid {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.words-table-grid th {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

.words-table-grid th:hover {
    background-color: var(--primary-dark);
}

.words-table-grid td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

.words-table-grid tbody tr:hover {
    background-color: var(--background);
}

.word-cell {
    font-weight: 600;
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Mobile header optimization - hide nav and center logo */
    .header-content {
        justify-content: center;
        padding: 0.75rem 1rem;
    }

    .main-nav {
        display: none;
    }

    .logo {
        font-size: 1.25rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    /* Make comparison page more compact on mobile */
    .comparison-container {
        padding: 1rem 1rem;
        min-height: auto;
    }

    .instructions {
        margin-bottom: 1.5rem;
    }

    .instructions h1 {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }

    .word-text {
        font-size: 1.5rem;
    }

    .word-pair {
        flex-direction: column;
        gap: 1rem;
        margin-bottom: 1rem;
    }

    .word-button {
        padding: 1.5rem 1rem;
        min-height: 100px;
        max-width: 100%;
    }

    .button-container {
        margin-top: 1rem;
    }

    .tie-button {
        max-width: 100%;
        padding: 1rem 1.5rem;
    }

    .stats {
        margin-top: 1.5rem;
        padding-top: 1.5rem;
    }

    .summary-cards {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .stat-value {
        font-size: 2rem;
    }

    .table-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-input {
        width: 100%;
    }

    .words-table-grid {
        font-size: 0.9rem;
    }

    .words-table-grid th,
    .words-table-grid td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    /* Even more compact for small phones */
    .comparison-container {
        padding: 0.75rem 0.75rem;
    }

    .instructions {
        margin-bottom: 1rem;
    }

    .instructions h1 {
        font-size: 1.25rem;
    }

    .word-text {
        font-size: 1.25rem;
    }

    .word-pair {
        gap: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .word-button {
        padding: 1.25rem 0.75rem;
        min-height: 80px;
    }

    .button-container {
        margin-top: 0.75rem;
    }

    .tie-button {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }

    .stats {
        margin-top: 1rem;
        padding-top: 1rem;
        font-size: 0.9rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }
}

#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNTYiIGhlaWdodD0iNDkiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIG92ZXJmbG93PSJoaWRkZW4iPjxkZWZzPjxjbGlwUGF0aCBpZD0iY2xpcDAiPjxyZWN0IHg9IjIzNSIgeT0iNTEiIHdpZHRoPSI1NiIgaGVpZ2h0PSI0OSIvPjwvY2xpcFBhdGg+PC9kZWZzPjxnIGNsaXAtcGF0aD0idXJsKCNjbGlwMCkiIHRyYW5zZm9ybT0idHJhbnNsYXRlKC0yMzUgLTUxKSI+PHBhdGggZD0iTTI2My41MDYgNTFDMjY0LjcxNyA1MSAyNjUuODEzIDUxLjQ4MzcgMjY2LjYwNiA1Mi4yNjU4TDI2Ny4wNTIgNTIuNzk4NyAyNjcuNTM5IDUzLjYyODMgMjkwLjE4NSA5Mi4xODMxIDI5MC41NDUgOTIuNzk1IDI5MC42NTYgOTIuOTk2QzI5MC44NzcgOTMuNTEzIDI5MSA5NC4wODE1IDI5MSA5NC42NzgyIDI5MSA5Ny4wNjUxIDI4OS4wMzggOTkgMjg2LjYxNyA5OUwyNDAuMzgzIDk5QzIzNy45NjMgOTkgMjM2IDk3LjA2NTEgMjM2IDk0LjY3ODIgMjM2IDk0LjM3OTkgMjM2LjAzMSA5NC4wODg2IDIzNi4wODkgOTMuODA3MkwyMzYuMzM4IDkzLjAxNjIgMjM2Ljg1OCA5Mi4xMzE0IDI1OS40NzMgNTMuNjI5NCAyNTkuOTYxIDUyLjc5ODUgMjYwLjQwNyA1Mi4yNjU4QzI2MS4yIDUxLjQ4MzcgMjYyLjI5NiA1MSAyNjMuNTA2IDUxWk0yNjMuNTg2IDY2LjAxODNDMjYwLjczNyA2Ni4wMTgzIDI1OS4zMTMgNjcuMTI0NSAyNTkuMzEzIDY5LjMzNyAyNTkuMzEzIDY5LjYxMDIgMjU5LjMzMiA2OS44NjA4IDI1OS4zNzEgNzAuMDg4N0wyNjEuNzk1IDg0LjAxNjEgMjY1LjM4IDg0LjAxNjEgMjY3LjgyMSA2OS43NDc1QzI2Ny44NiA2OS43MzA5IDI2Ny44NzkgNjkuNTg3NyAyNjcuODc5IDY5LjMxNzkgMjY3Ljg3OSA2Ny4xMTgyIDI2Ni40NDggNjYuMDE4MyAyNjMuNTg2IDY2LjAxODNaTTI2My41NzYgODYuMDU0N0MyNjEuMDQ5IDg2LjA1NDcgMjU5Ljc4NiA4Ny4zMDA1IDI1OS43ODYgODkuNzkyMSAyNTkuNzg2IDkyLjI4MzcgMjYxLjA0OSA5My41Mjk1IDI2My41NzYgOTMuNTI5NSAyNjYuMTE2IDkzLjUyOTUgMjY3LjM4NyA5Mi4yODM3IDI2Ny4zODcgODkuNzkyMSAyNjcuMzg3IDg3LjMwMDUgMjY2LjExNiA4Ni4wNTQ3IDI2My41NzYgODYuMDU0N1oiIGZpbGw9IiNGRkU1MDAiIGZpbGwtcnVsZT0iZXZlbm9kZCIvPjwvZz48L3N2Zz4=) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}