/* ═══════════════════════════════════════════════
   BT Status Logg – Premium SaaS Frontend
   Inspired by Stripe, Linear & Vercel
   ═══════════════════════════════════════════════ */

/* ─── Reset & Root ─── */
.btsl.btsl-root *, .btsl.btsl-root *::before, .btsl.btsl-root *::after { box-sizing: border-box; margin: 0; padding: 0; }

.btsl.btsl-root {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    color: #0a2540;
    font-size: 15px;
    line-height: 1.6;
    overflow-wrap: break-word;
    word-wrap: break-word;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ─── Hero ─── */
.btsl.btsl-root .btsl__hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 32px;
    margin-bottom: 36px;
    border-bottom: 1px solid rgba(10, 37, 64, 0.08);
    flex-wrap: wrap;
}
.btsl.btsl-root .btsl__hero-text {
    flex: 1;
    min-width: 200px;
}
.btsl.btsl-root .btsl__title {
    margin: 0 0 6px;
    font-size: 1.75em;
    font-weight: 700;
    color: #0a2540;
    letter-spacing: -0.025em;
    line-height: 1.15;
    border: none;
    background: none;
    text-transform: none;
    float: none;
}
.btsl.btsl-root .btsl__subtitle {
    margin: 0;
    font-size: 0.94em;
    color: #425466;
    font-weight: 400;
    line-height: 1.5;
}
.btsl.btsl-root .btsl__hero-stats {
    display: flex;
    gap: 32px;
    flex-shrink: 0;
}
.btsl.btsl-root .btsl__hero-stat {
    text-align: center;
    min-width: 56px;
}
.btsl.btsl-root .btsl__hero-stat-num {
    display: block;
    font-size: 1.85em;
    font-weight: 700;
    color: #0a2540;
    line-height: 1.1;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
}
.btsl.btsl-root .btsl__hero-stat-label {
    display: block;
    font-size: 0.7em;
    color: #8898aa;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 4px;
}

/* ─── Sections ─── */
.btsl.btsl-root .btsl__section {
    margin-bottom: 44px;
}
.btsl.btsl-root .btsl__section:last-child {
    margin-bottom: 0;
}
.btsl.btsl-root .btsl__section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
}
.btsl.btsl-root .btsl__section-title {
    margin: 0;
    font-size: 0.8em;
    font-weight: 600;
    color: #8898aa;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: none;
    background: none;
    float: none;
}
.btsl.btsl-root .btsl__section-count {
    font-size: 0.78em;
    color: #a3b1bf;
    font-weight: 500;
}

/* ─── Roadmap Cards ─── */
.btsl.btsl-root .btsl__roadmap {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: rgba(10, 37, 64, 0.06);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(10, 37, 64, 0.06);
}
.btsl.btsl-root .btsl__card {
    background: #fff;
    padding: 20px 24px;
    position: relative;
    transition: background 0.18s ease;
}
.btsl.btsl-root .btsl__card:first-child { border-radius: 11px 11px 0 0; }
.btsl.btsl-root .btsl__card:last-child { border-radius: 0 0 11px 11px; }
.btsl.btsl-root .btsl__card:only-child { border-radius: 11px; }
.btsl.btsl-root .btsl__card:hover {
    background: #fafcff;
}
.btsl.btsl-root .btsl__card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    border-radius: 0;
    transition: opacity 0.18s ease;
}
.btsl.btsl-root .btsl__card--in_progress::before { background: #635bff; }
.btsl.btsl-root .btsl__card--testing::before { background: #0ea5e9; }
.btsl.btsl-root .btsl__card--planned::before { background: transparent; }
.btsl.btsl-root .btsl__card--paused::before { background: #f59e0b; }
.btsl.btsl-root .btsl__card--paused {
    opacity: 0.72;
}
.btsl.btsl-root .btsl__card--paused:hover { opacity: 1; }

.btsl.btsl-root .btsl__card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 6px;
}
.btsl.btsl-root .btsl__card-top-left {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}
.btsl.btsl-root .btsl__card-title {
    margin: 0;
    font-size: 0.98em;
    font-weight: 600;
    color: #0a2540;
    line-height: 1.45;
    letter-spacing: -0.006em;
}
.btsl.btsl-root .btsl__card-desc {
    margin-top: 6px;
    font-size: 0.88em;
    color: #516579;
    line-height: 1.65;
}
.btsl.btsl-root .btsl__card-desc p {
    margin: 0.3em 0;
}
.btsl.btsl-root .btsl__card-desc p:first-child { margin-top: 0; }
.btsl.btsl-root .btsl__card-desc p:last-child { margin-bottom: 0; }

.btsl.btsl-root .btsl__card-date {
    font-size: 0.73em;
    color: #a3b1bf;
    font-weight: 500;
    letter-spacing: 0.01em;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ─── Status Pills ─── */
.btsl.btsl-root .btsl__status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px 3px 8px;
    border-radius: 100px;
    font-size: 0.7em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
    line-height: 1.5;
}
.btsl.btsl-root .btsl__status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}
.btsl.btsl-root .btsl__status--in_progress {
    background: rgba(99, 91, 255, 0.08);
    color: #635bff;
}
.btsl.btsl-root .btsl__status--in_progress::before {
    background: #635bff;
    box-shadow: 0 0 0 2px rgba(99, 91, 255, 0.2);
    animation: btsl-glow 2.4s ease-in-out infinite;
}
.btsl.btsl-root .btsl__status--testing {
    background: rgba(14, 165, 233, 0.08);
    color: #0284c7;
}
.btsl.btsl-root .btsl__status--testing::before { background: #0ea5e9; }
.btsl.btsl-root .btsl__status--planned {
    background: rgba(136, 152, 170, 0.1);
    color: #64748b;
}
.btsl.btsl-root .btsl__status--planned::before { background: #94a3b8; }
.btsl.btsl-root .btsl__status--paused {
    background: rgba(245, 158, 11, 0.08);
    color: #b45309;
}
.btsl.btsl-root .btsl__status--paused::before { background: #f59e0b; }

@keyframes btsl-glow {
    0%, 100% { box-shadow: 0 0 0 2px rgba(99, 91, 255, 0.2); }
    50% { box-shadow: 0 0 0 4px rgba(99, 91, 255, 0.06); }
}

/* ─── Priority & Category ─── */
.btsl.btsl-root .btsl__priority,
.btsl.btsl-root .btsl__cat {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 6px;
    font-size: 0.7em;
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.01em;
}
.btsl.btsl-root .btsl__priority--low { background: rgba(22, 163, 74, 0.07); color: #16a34a; }
.btsl.btsl-root .btsl__priority--high { background: rgba(217, 119, 6, 0.08); color: #d97706; }
.btsl.btsl-root .btsl__priority--critical { background: rgba(220, 38, 38, 0.07); color: #dc2626; }
.btsl.btsl-root .btsl__cat { background: rgba(124, 58, 237, 0.06); color: #7c3aed; }

/* ─── Empty State ─── */
.btsl.btsl-root .btsl__empty-state {
    text-align: center;
    padding: 56px 32px;
    border: 1px solid rgba(10, 37, 64, 0.06);
    border-radius: 12px;
    background: linear-gradient(180deg, #fafcff 0%, #fff 100%);
}
.btsl.btsl-root .btsl__empty-icon {
    color: #16a34a;
    margin-bottom: 16px;
    opacity: 0.8;
}
.btsl.btsl-root .btsl__empty-icon svg {
    width: 40px;
    height: 40px;
    max-width: none;
    float: none;
}
.btsl.btsl-root .btsl__empty-text {
    font-size: 1.05em;
    font-weight: 600;
    color: #0a2540;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}
.btsl.btsl-root .btsl__empty-sub {
    font-size: 0.88em;
    color: #8898aa;
    line-height: 1.5;
}

/* ─── Search ─── */
.btsl.btsl-root .btsl__search-box {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 44px;
    padding: 0 16px;
    margin: 0 0 20px;
    border: 1px solid rgba(10, 37, 64, 0.1);
    border-radius: 10px;
    background: #fff;
    cursor: text;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.btsl.btsl-root .btsl__search-box:hover {
    border-color: rgba(10, 37, 64, 0.18);
}
.btsl.btsl-root .btsl__search-box:focus-within {
    border-color: #635bff;
    box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.08), 0 1px 2px rgba(0,0,0,0.04);
}
.btsl.btsl-root .btsl__search-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    max-width: none;
    max-height: none;
    color: #a3b1bf;
    transition: color 0.15s;
}
.btsl.btsl-root .btsl__search-box:focus-within .btsl__search-icon {
    color: #635bff;
}
.btsl.btsl-root .btsl__search {
    flex: 1;
    min-width: 0;
    height: 100%;
    padding: 0 !important;
    margin: 0 !important;
    border: none !important;
    background: transparent !important;
    font-size: 0.88em;
    font-family: inherit;
    line-height: normal;
    color: #0a2540;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: none !important;
}
.btsl.btsl-root .btsl__search::placeholder {
    color: #a3b1bf;
    font-weight: 400;
}

/* ─── Log Timeline ─── */
.btsl.btsl-root .btsl__log-list {
    position: relative;
    padding-left: 24px;
}
.btsl.btsl-root .btsl__log-list::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, rgba(10,37,64,0.08) 0%, rgba(10,37,64,0.03) 100%);
}
.btsl.btsl-root .btsl__log-item {
    display: flex;
    gap: 18px;
    padding: 14px 0;
    position: relative;
    transition: opacity 0.2s;
}
.btsl.btsl-root .btsl__log-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid rgba(10, 37, 64, 0.15);
    flex-shrink: 0;
    margin-top: 6px;
    margin-left: -24px;
    position: relative;
    z-index: 1;
    transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btsl.btsl-root .btsl__log-item:hover .btsl__log-dot {
    border-color: #635bff;
    background: rgba(99, 91, 255, 0.08);
    transform: scale(1.2);
}
.btsl.btsl-root .btsl__log-content {
    flex: 1;
    min-width: 0;
}
.btsl.btsl-root .btsl__log-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}
.btsl.btsl-root .btsl__log-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.btsl.btsl-root .btsl__log-title {
    font-weight: 600;
    font-size: 0.92em;
    color: #0a2540;
    word-break: break-word;
    letter-spacing: -0.006em;
    line-height: 1.45;
}
.btsl.btsl-root .btsl__log-date {
    font-size: 0.76em;
    color: #a3b1bf;
    white-space: nowrap;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}
.btsl.btsl-root .btsl__log-expand {
    background: none;
    border: none;
    padding: 6px 0;
    margin-top: 2px;
    font-size: 0.8em;
    font-family: inherit;
    color: #635bff;
    cursor: pointer;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.15s, gap 0.15s;
    letter-spacing: 0.005em;
    text-decoration: none;
    text-transform: none;
    float: none;
    box-shadow: none;
}
.btsl.btsl-root .btsl__log-expand::after {
    content: '\2192';
    font-size: 0.95em;
    transition: transform 0.2s;
}
.btsl.btsl-root .btsl__log-expand:hover {
    color: #4338ca;
}
.btsl.btsl-root .btsl__log-expand:hover::after {
    transform: translateX(2px);
}
.btsl.btsl-root .btsl__log-expand[aria-expanded="true"]::after {
    content: '\2191';
    transform: none;
}
.btsl.btsl-root .btsl__log-body {
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    padding: 0 16px;
    background: rgba(10, 37, 64, 0.02);
    border-radius: 8px;
    font-size: 0.86em;
    color: #516579;
    line-height: 1.7;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.25s ease,
                margin-top 0.25s ease,
                padding-top 0.25s ease,
                padding-bottom 0.25s ease;
}
.btsl.btsl-root .btsl__log-body.btsl--open {
    max-height: 2000px;
    opacity: 1;
    margin-top: 10px;
    padding: 14px 16px;
}
.btsl.btsl-root .btsl__log-body p {
    margin: 0.3em 0;
}
.btsl.btsl-root .btsl__log-body p:first-child { margin-top: 0; }
.btsl.btsl-root .btsl__log-body p:last-child { margin-bottom: 0; }
.btsl.btsl-root .btsl__log-body a,
.btsl.btsl-root .btsl__card-desc a {
    color: #635bff;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(99, 91, 255, 0.2);
    transition: border-color 0.15s;
}
.btsl.btsl-root .btsl__log-body a:hover,
.btsl.btsl-root .btsl__card-desc a:hover {
    border-color: #635bff;
}

.btsl.btsl-root .btsl__log-cat {
    display: inline-block;
    margin-top: 0;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.68em;
    font-weight: 600;
    background: rgba(124, 58, 237, 0.06);
    color: #7c3aed;
    letter-spacing: 0.01em;
}

/* ─── Load More ─── */
.btsl.btsl-root .btsl__log-hidden {
    display: none;
}
.btsl.btsl-root .btsl__log-hidden.btsl--visible {
    display: block;
}
.btsl.btsl-root .btsl__load-more {
    display: block;
    width: 100%;
    margin-top: 16px;
    padding: 12px 24px;
    background: #fff;
    border: 1px solid rgba(10, 37, 64, 0.1);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.85em;
    font-weight: 600;
    color: #425466;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    letter-spacing: 0.005em;
    text-decoration: none;
    text-transform: none;
    float: none;
    box-shadow: none;
}
.btsl.btsl-root .btsl__load-more:hover {
    background: #fafcff;
    border-color: #635bff;
    color: #635bff;
}
.btsl.btsl-root .btsl__load-more:focus {
    outline: none;
    border-color: #635bff;
    box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.08);
}

/* ─── Divider between sections ─── */
.btsl.btsl-root .btsl__section--log {
    padding-top: 4px;
    border-top: 1px solid rgba(10, 37, 64, 0.06);
    margin-top: -4px;
}

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
    .btsl.btsl-root *, .btsl.btsl-root *::before, .btsl.btsl-root *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ─── Responsive ─── */
@media (max-width: 640px) {
    .btsl.btsl-root { font-size: 14px; }
    .btsl.btsl-root .btsl__hero {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding-bottom: 24px;
        margin-bottom: 28px;
    }
    .btsl.btsl-root .btsl__hero-stats { gap: 24px; }
    .btsl.btsl-root .btsl__hero-stat-num { font-size: 1.5em; }
    .btsl.btsl-root .btsl__card { padding: 16px 18px; }
    .btsl.btsl-root .btsl__log-header {
        flex-direction: column;
        gap: 2px;
    }
    .btsl.btsl-root .btsl__section-head { margin-bottom: 16px; }
}