/* === Global Dark Theme === */
html, body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background-color: #0f1923;
    color: #e8e8e8;
    margin: 0;
    padding: 0;
}

a, .btn-link {
    color: #f5a623;
}

a:hover {
    color: #ffc560;
}

.btn-primary {
    color: #fff;
    background-color: #f5a623;
    border-color: #e09520;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem rgba(15, 25, 35, 0.5), 0 0 0 0.25rem rgba(245, 166, 35, 0.4);
}

h1:focus {
    outline: none;
}

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

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #ff6b6b;
}

.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."
    }

/* === Layout === */
.page {
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: #0f1923;
}

main {
    flex: 1;
}

.sidebar {
    background-color: #141c27;
}

.content {
    padding-top: 1.5rem;
}

/* === Bootstrap Utilities (minimal) === */
.container-fluid { width: 100%; padding-right: .75rem; padding-left: .75rem; margin-right: auto; margin-left: auto; }
.navbar { position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.navbar-brand { display: inline-block; padding-top: .3125rem; padding-bottom: .3125rem; margin-right: 1rem; text-decoration: none; white-space: nowrap; }
.nav { display: flex; flex-wrap: wrap; padding-left: 0; margin-bottom: 0; list-style: none; }
.flex-column { flex-direction: column !important; }
.px-3 { padding-left: 1rem !important; padding-right: 1rem !important; }
.px-4 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
*, *::before, *::after { box-sizing: border-box; }

@media (min-width: 641px) {
    .page {
        flex-direction: row;
    }

    .sidebar {
        width: 250px;
        height: 100vh;
        position: sticky;
        top: 0;
    }

    article {
        padding-left: 2rem !important;
        padding-right: 1.5rem !important;
    }
}

/* === Navigation === */
.navbar-toggler {
    appearance: none;
    cursor: pointer;
    width: 3.5rem;
    height: 2.5rem;
    color: white;
    position: absolute;
    top: 0.5rem;
    right: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28245, 166, 35, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") no-repeat center/1.75rem rgba(255, 255, 255, 0.05);
}

.navbar-toggler:checked {
    background-color: rgba(245, 166, 35, 0.2);
}

.top-row {
    min-height: 3.5rem;
    background-color: #141c27;
}

.navbar-brand {
    font-size: 1.3rem;
    color: #f5a623 !important;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.bi {
    display: inline-block;
    position: relative;
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.75rem;
    top: -1px;
    background-size: cover;
}

.bi-crosshair-nav-menu {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23f5a623' viewBox='0 0 16 16'%3E%3Cpath d='M8 0a.5.5 0 0 1 .5.5v1.02A7 7 0 0 1 14.48 7.5h1.02a.5.5 0 0 1 0 1h-1.02A7 7 0 0 1 8.5 14.48v1.02a.5.5 0 0 1-1 0v-1.02A7 7 0 0 1 1.52 8.5H.5a.5.5 0 0 1 0-1h1.02A7 7 0 0 1 7.5 1.52V.5A.5.5 0 0 1 8 0M8 3a5 5 0 1 0 0 10A5 5 0 0 0 8 3m0 3a2 2 0 1 1 0 4 2 2 0 0 1 0-4'/%3E%3C/svg%3E");
}

.bi-bar-chart-fill-nav-menu {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23f5a623' viewBox='0 0 16 16'%3E%3Cpath d='M1 11a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1v3a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1v-3zm5-4a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1v7a1 1 0 0 1-1 1H7a1 1 0 0 1-1-1V7zm5-5a1 1 0 0 1 1-1h2a1 1 0 0 1 1 1v12a1 1 0 0 1-1 1h-2a1 1 0 0 1-1-1V2z'/%3E%3C/svg%3E");
}

.bi-graph-up-nav-menu {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23f5a623' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M0 0h1v15h15v1H0zm14.817 3.113a.5.5 0 0 1 .07.704l-4.5 5.5a.5.5 0 0 1-.74.037L7.06 6.767l-3.656 5.027a.5.5 0 0 1-.808-.588l4-5.5a.5.5 0 0 1 .758-.06l2.609 2.61 4.15-5.073a.5.5 0 0 1 .704-.07'/%3E%3C/svg%3E");
}

.nav-item {
    font-size: 0.9rem;
    padding-bottom: 0.5rem;
}

.nav-item:first-of-type {
    padding-top: 1rem;
}

.nav-item:last-of-type {
    padding-bottom: 1rem;
}

.nav-item .nav-link {
    color: #8899aa;
    background: none;
    border: none;
    border-radius: 4px;
    height: 3rem;
    display: flex;
    align-items: center;
    line-height: 3rem;
    width: 100%;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    text-decoration: none;
}

.nav-item a.active {
    background-color: rgba(245, 166, 35, 0.1);
    color: #f5a623;
    border-left: 3px solid #f5a623;
}

.nav-item .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #e8e8e8;
    border-left: 3px solid rgba(245, 166, 35, 0.5);
}

.nav-scrollable {
    display: none;
}

.navbar-toggler:checked ~ .nav-scrollable {
    display: block;
}

@media (min-width: 641px) {
    .navbar-toggler {
        display: none;
    }

    .nav-scrollable {
        display: block;
        height: calc(100vh - 3.5rem);
        overflow-y: auto;
    }
}

/* === Page Title === */
.page-title {
    color: #ffffff;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid #f5a623;
    display: inline-block;
}

.page-subtitle {
    color: #8899aa;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.page-subtitle strong {
    color: #f5a623;
}

.predict-meta {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: #667788;
    margin-bottom: 1.5rem;
    padding: 8px 12px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* === Card Dark === */
.card-dark {
    background-color: #1a2332;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-dark-title {
    color: #ffffff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-top: 0.5rem;
    border-top: 3px solid #f5a623;
    display: inline-block;
}

/* === Loading & Error === */
.loading-text {
    color: #8899aa;
    font-size: 1rem;
}

.error-text {
    color: #ff6b6b;
}

/* === Number Badge (Loto Ball Style) === */
.num-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5a623, #e09520);
    color: #0f1923;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
    margin-right: 8px;
}

/* === Frequency Chart (Home) === */
.frequency-chart {
    max-width: 700px;
}

.freq-row {
    display: flex;
    align-items: center;
    margin-bottom: 3px;
    height: 34px;
    padding: 0 4px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.freq-row:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.freq-bar-bg {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    height: 20px;
    overflow: hidden;
}

.freq-bar {
    height: 100%;
    background: linear-gradient(90deg, #4a9eff, #2d7cd6);
    border-radius: 4px;
    min-width: 2px;
    transition: width 0.3s ease;
}

.freq-count {
    width: 70px;
    text-align: right;
    font-size: 13px;
    margin-left: 8px;
    color: #8899aa;
}

/* === Stat Chart (Statistics) === */
.stat-section {
    margin-bottom: 1.5rem;
}

.stat-chart {
    max-width: 700px;
}

.stat-row {
    display: flex;
    align-items: center;
    margin-bottom: 3px;
    height: 32px;
    padding: 0 4px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.stat-row:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.stat-label {
    width: 80px;
    font-weight: 600;
    text-align: right;
    margin-right: 8px;
    font-size: 14px;
    white-space: nowrap;
    color: #c0c8d0;
}

.stat-label-wide {
    width: 70px;
}

.stat-bar-bg {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    height: 20px;
    overflow: hidden;
}

.stat-bar {
    height: 100%;
    background: linear-gradient(90deg, #4a9eff, #2d7cd6);
    border-radius: 4px;
    min-width: 2px;
    transition: width 0.3s ease;
}

.stat-bar-highlight {
    background: linear-gradient(90deg, #ff6b35, #e05520);
}

.stat-count {
    width: 130px;
    text-align: right;
    font-size: 13px;
    margin-left: 8px;
    color: #8899aa;
    white-space: nowrap;
}

/* === Stat Summary Badges === */
.stat-summary {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 12px;
    padding: 12px 16px;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    max-width: 700px;
    font-size: 14px;
    color: #8899aa;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-summary strong {
    color: #f5a623;
}

.stat-note {
    font-size: 13px;
    color: #667788;
    margin-bottom: 8px;
}

/* === Neko Mascot Avatar === */
.neko-avatar-small {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 8px;
    vertical-align: middle;
}

.neko-avatar-large {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #f5a623;
    box-shadow: 0 0 20px rgba(245, 166, 35, 0.3);
    display: block;
    margin: 0 auto 1rem auto;
}

/* === Prediction Reason === */
.predict-reason-row {
    display: flex;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

.predict-reason-arrow {
    color: #556677;
    margin-right: 8px;
    font-size: 14px;
    flex-shrink: 0;
}

.predict-reason-text {
    font-size: 14px;
    color: #c0c8d0;
}

/* === Prediction Page === */
.predict-main-card {
    text-align: center;
}

.predict-balls {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin: 1.5rem 0;
}

.predict-ball {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5a623, #e09520);
    color: #0f1923;
    font-weight: 800;
    font-size: 22px;
    box-shadow: 0 4px 12px rgba(245, 166, 35, 0.3);
}

.predict-note {
    color: #667788;
    font-size: 13px;
    margin-top: 1rem;
}

.predict-detail {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.predict-detail:last-child {
    border-bottom: none;
}

.predict-detail-header {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.predict-detail-total {
    color: #8899aa;
    font-size: 14px;
}

.predict-detail-total strong {
    color: #f5a623;
}

.predict-score-bars {
    max-width: 500px;
    margin-left: 40px;
}

.predict-score-row {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    height: 24px;
}

.predict-score-label {
    width: 130px;
    font-size: 12px;
    color: #8899aa;
    white-space: nowrap;
}

.predict-score-bar-bg {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    height: 14px;
    overflow: hidden;
}

.predict-score-bar {
    height: 100%;
    background: linear-gradient(90deg, #4a9eff, #2d7cd6);
    border-radius: 3px;
    min-width: 2px;
    transition: width 0.3s ease;
}

.predict-score-bar-trend {
    background: linear-gradient(90deg, #ff6b35, #e05520);
}

.predict-score-bar-interval {
    background: linear-gradient(90deg, #26b050, #1e8a3e);
}

.predict-score-bar-balance {
    background: linear-gradient(90deg, #a855f7, #7c3aed);
}

.predict-score-bar-carryover {
    background: linear-gradient(90deg, #f59e0b, #d97706);
}

.predict-score-value {
    width: 40px;
    text-align: right;
    font-size: 12px;
    color: #8899aa;
    margin-left: 8px;
}

.predict-detail-info {
    font-size: 12px;
    color: #667788;
    margin: 6px 0 0 40px;
}

/* === Prediction Ranking === */
.predict-ranking-summary {
    cursor: pointer;
    user-select: none;
}

.predict-ranking-summary:hover {
    color: #f5a623;
}

.predict-ranking {
    margin-top: 1rem;
    max-width: 600px;
}

.predict-ranking-row {
    display: flex;
    align-items: center;
    margin-bottom: 3px;
    height: 32px;
    padding: 0 4px;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}

.predict-ranking-row:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.predict-ranking-highlight {
    background-color: rgba(245, 166, 35, 0.08);
}

.predict-ranking-highlight:hover {
    background-color: rgba(245, 166, 35, 0.12);
}

.predict-ranking-rank {
    width: 28px;
    font-size: 13px;
    color: #667788;
    text-align: right;
    margin-right: 8px;
}

.predict-ranking-bar {
    flex: 1;
    margin: 0 8px;
}

.predict-ranking-score {
    width: 50px;
    text-align: right;
    font-size: 13px;
    color: #8899aa;
}

.num-badge-dim {
    background: linear-gradient(135deg, #445566, #334455);
    color: #8899aa;
}

/* === Algorithm Page === */
.bi-question-circle-nav-menu {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23f5a623' viewBox='0 0 16 16'%3E%3Cpath d='M8 15A7 7 0 1 1 8 1a7 7 0 0 1 0 14m0 1A8 8 0 1 0 8 0a8 8 0 0 0 0 16'/%3E%3Cpath d='M5.255 5.786a.237.237 0 0 0 .241.247h.825c.138 0 .248-.113.266-.25.09-.656.54-1.134 1.342-1.134.686 0 1.314.343 1.314 1.168 0 .635-.374.927-.965 1.371-.673.489-1.206 1.06-1.168 1.987l.003.217a.25.25 0 0 0 .25.246h.811a.25.25 0 0 0 .25-.25v-.105c0-.718.273-.927 1.01-1.486.609-.463 1.244-.977 1.244-2.056 0-1.511-1.276-2.241-2.673-2.241-1.267 0-2.655.59-2.75 2.286m1.557 5.763c0 .533.425.927 1.01.927.609 0 1.028-.394 1.028-.927 0-.552-.42-.94-1.029-.94-.584 0-1.009.388-1.009.94'/%3E%3C/svg%3E");
}

.algo-text {
    line-height: 1.8;
    color: #c0c8d0;
    margin-bottom: 1rem;
    font-size: 14px;
}

.algo-indicator {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    border-radius: 8px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.algo-indicator-bar {
    width: 6px;
    height: 40px;
    border-radius: 3px;
    flex-shrink: 0;
    margin-top: 2px;
}

.algo-indicator-content {
    flex: 1;
}

.algo-indicator-title {
    font-weight: 600;
    color: #ffffff;
    font-size: 14px;
    margin-bottom: 4px;
}

.algo-indicator-desc {
    font-size: 13px;
    color: #8899aa;
    line-height: 1.6;
}

.algo-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #1a2332;
    font-size: 13px;
    margin-bottom: 1rem;
}

.algo-table th,
.algo-table td {
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.algo-table th {
    background-color: rgba(245, 166, 35, 0.1);
    color: #f5a623;
    font-weight: 600;
    font-size: 12px;
}

.algo-table td {
    color: #c0c8d0;
}

.algo-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.algo-step {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 4px;
}

.algo-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f5a623, #e09520);
    color: #0f1923;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}

.algo-step-text {
    font-size: 14px;
    color: #c0c8d0;
    line-height: 28px;
}

.algo-step-arrow {
    text-align: center;
    color: #556677;
    font-size: 18px;
    margin: 0 0 4px 8px;
}

.algo-formula {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    padding: 12px 16px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: #e8e8e8;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow-x: auto;
}

.algo-note {
    font-size: 12px;
    color: #667788;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}