:root {
    --bg-dark: #0a0b10;
    --bg-panel: #13151c;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    
    --elite-color: #f59e0b;
    --elite-glow: rgba(245, 158, 11, 0.4);
    
    --hc-color: #10b981;
    --hc-glow: rgba(16, 185, 129, 0.4);

    --border: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(19, 21, 28, 0.7);
    --row-hover: rgba(255, 255, 255, 0.03);
    --sticky-bg: #1a1d26;
    --th-bg: rgba(255, 255, 255, 0.02);
    --th-hover-bg: rgba(255, 255, 255, 0.05);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

body.light-mode {
    --bg-dark: #f5f7fa;
    --bg-panel: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border: rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --row-hover: rgba(0, 0, 0, 0.03);
    --sticky-bg: #eef2f7;
    --th-bg: rgba(0, 0, 0, 0.03);
    --th-hover-bg: rgba(0, 0, 0, 0.05);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark); 
}
::-webkit-scrollbar-thumb {
    background: #334155; 
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #475569; 
}

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

/* Header */
.glass-header {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    /* 3-col grid centers the title; controls floated to the right column. */
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    width: 100%;
    margin: 0 auto;
    gap: 1rem;
}
.header-content .logo-area {
    grid-column: 2;
    text-align: center;
}
.header-content .controls-area {
    grid-column: 3;
    justify-self: end;
}

.logo-area h1 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #fff;
}

.logo-area h1 span {
    color: var(--accent);
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    font-weight: 500;
}

/* Toggle Switch and Language Selectors */
.controls-area {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.lang-selector {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.lang-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.lang-btn.active {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent);
    box-shadow: inset 0 -2px 0 var(--accent);
}

/* Main Content & Table */
.table-container {
    flex: 1;
    padding: 1rem 1.25rem;
    overflow: hidden; /* we handle scroll in wrapper */
    display: flex;
    justify-content: center;
}

.table-wrapper {
    /* width:auto lets the wrapper hug the table on wide screens so the flex parent can center it.
       max-width:100% keeps it capped on narrow screens so the overflow:auto scroll still works. */
    width: auto;
    max-width: 100%;
    background: var(--bg-panel);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    /* Hide scrollbars to reclaim space — wheel, keyboard, and touch still scroll */
    scrollbar-width: none;           /* Firefox */
    -ms-overflow-style: none;        /* legacy Edge / IE */
}
.table-wrapper::-webkit-scrollbar {  /* Chromium, Safari */
    display: none;
}

/* Filter bar above the list — Chokepoint/Bottleneck slider plus inline explainer */
.position-filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: 0.9rem 1.25rem 0.5rem;
    flex-wrap: wrap;
}
.position-explainer {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.45;
    text-align: left;
}
.position-explainer strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Sliding-pill segmented control: a moving accent thumb shows which side is active */
.position-toggle {
    position: relative;
    display: inline-flex;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px;
    overflow: hidden;
}
body.light-mode .position-toggle {
    background: rgba(0, 0, 0, 0.05);
}
.position-toggle-thumb {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    /* Thumb spans one third of the inner area (container minus 8px padding).
       translateX(100%) moves it by exactly one button width since each button
       is also 1/3 of the inner area. */
    width: calc((100% - 8px) / 3);
    border-radius: 999px;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    z-index: 0;
}
.position-toggle.chokepoint-active .position-toggle-thumb {
    transform: translateX(100%);
}
.position-toggle.bottleneck-active .position-toggle-thumb {
    transform: translateX(200%);
}
.position-btn {
    position: relative;
    z-index: 1;
    flex: 1;
    min-width: 120px;
    padding: 0.5rem 1.1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    border-radius: 999px;
    transition: color 0.28s ease;
}
.position-btn.active {
    color: #ffffff;
}
.position-btn:hover:not(.active) {
    color: var(--text-primary);
}

table {
    /* width:auto keeps columns content-sized so they don't stretch to fill a 4K viewport */
    width: auto;
    border-collapse: collapse;
    text-align: left;
    white-space: nowrap;
}

th, td {
    padding: 0.4rem 0.5rem;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--th-bg);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(10px);
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
}

th:hover {
    color: var(--text-primary);
    background: var(--th-hover-bg);
}

/* Sort icons visible on desktop. Mobile hides them via the 480px media
   query to claw back ~14px per column. */
th .sort-icon {
    display: inline-block;
    margin-left: 5px;
    font-size: 0.72rem;
    opacity: 0.3;
}
th.asc .sort-icon,
th.desc .sort-icon {
    opacity: 1;
    color: var(--accent);
}

/* Base Truncated Style */
td {
    font-size: 0.92rem;
    color: var(--text-primary);
    vertical-align: middle;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    /* Cap cell width so a long Target string ('GBp 900-1,600 (FY2028-31...')
       doesn't stretch its column past everything else. Truncates with
       ellipsis; full text still visible on row tap-expand. */
    max-width: 200px;
}

/* Make Rank, Ticker, and Name slightly sticky to the left so they are always visible */
/* Also optimizing widths for efficiency */
/* Sticky left columns: Rank (1) and Ticker (2). Ticker now carries a logo
   to the left of the symbol so its width budget grew slightly. */
th:nth-child(1), td:nth-child(1) { width: 42px; max-width: 50px; min-width: 40px; text-align: center; position: sticky; left: 0; z-index: 20; background: var(--bg-panel); }
th:nth-child(2), td:nth-child(2) { width: 110px; max-width: 130px; min-width: 100px; position: sticky; left: 42px; z-index: 20; background: var(--bg-panel); border-right: 1px solid var(--border); }

/* Fix header z-index for sticky cols */
th:nth-child(1), th:nth-child(2) {
    z-index: 30;
    background: var(--sticky-bg);
}

/* Expansion logic */
tbody tr {
    cursor: pointer;
    transition: background-color 0.2s;
}

tbody tr:hover td {
    background-color: var(--row-hover);
}

tr.row-expanded td {
    white-space: pre-wrap;
    overflow: visible;
    text-overflow: clip;
    max-width: none;
    vertical-align: top;
    background-color: rgba(255, 255, 255, 0.02); /* slight highlight when expanded */
}

/* Ensure sticky columns maintain their background in expanded/hover states */
/* But also get the hover/expanded background mix */
tbody tr:hover td:nth-child(1), tbody tr:hover td:nth-child(2) {
    background-color: var(--sticky-bg);
}
tr.row-expanded td:nth-child(1), tr.row-expanded td:nth-child(2) {
    background-color: var(--sticky-bg);
}

/* === Ticker cell with logo (left of symbol, à la TradingView) === */
.ticker-cell {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    width: 100%;
    overflow: hidden;
}
.ticker-logo {
    position: relative;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    border-radius: 50%;
    /* Letter avatar shows behind the image; gradient varies by --accent
       so the visual still pops in light/dark. */
    background: linear-gradient(135deg, var(--accent), #1e40af);
    overflow: hidden;
    font-size: 0.7rem;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    line-height: 1;
}
.ticker-logo::before {
    content: attr(data-initial);
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.ticker-logo img {
    /* Image sits on top of the letter avatar; if onerror hides it, the
       letter remains visible. White background keeps logos with
       transparent backgrounds readable on the dark theme. */
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #ffffff;
    z-index: 1;
}
.ticker-symbol {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}


.badge {
    display: inline-block;
    padding: 0.18rem 0.4rem;
    border-radius: 5px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge.elite {
    background: rgba(245, 158, 11, 0.15);
    color: var(--elite-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
    box-shadow: 0 0 10px var(--elite-glow);
}

.badge.score-glow {
    background: rgba(0, 255, 128, 0.2);
    color: #00ff80;
    border: 1px solid #00ff80;
    box-shadow: 0 0 20px 6px rgba(0, 255, 128, 0.6);
    text-shadow: 0 0 5px rgba(0, 255, 128, 0.8);
}

/* Tiered score badges for Total / Base / Entry.
   Fill intensifies as score rises so higher numbers have more "green volume". */
.badge.score-tier-1 {
    background: rgba(16, 185, 129, 0.18);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.4);
}
.badge.score-tier-2 {
    background: rgba(16, 185, 129, 0.55);
    color: #ffffff;
    border: 1px solid rgba(16, 185, 129, 0.8);
}
.badge.score-tier-3 {
    background: #047857;
    color: #ffffff;
    border: 1px solid #065f46;
    box-shadow: 0 0 18px rgba(16, 185, 129, 0.5);
    text-shadow: 0 0 4px rgba(4, 120, 87, 0.9);
}

body.light-mode .badge.score-tier-1 {
    background: #d1fae5;
    color: #065f46;
    border-color: #6ee7b7;
}
body.light-mode .badge.score-tier-2 {
    background: #10b981;
    color: #ffffff;
    border-color: #059669;
}
body.light-mode .badge.score-tier-3 {
    background: #064e3b;
    color: #ffffff;
    border-color: #022c22;
    box-shadow: 0 0 10px rgba(5, 150, 105, 0.35);
    text-shadow: none;
}

/* Red tiers — mirror of the green tiers, deeper red as the score drops */
.badge.score-tier-red-1 {
    background: rgba(239, 68, 68, 0.18);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.4);
}
.badge.score-tier-red-2 {
    background: rgba(239, 68, 68, 0.55);
    color: #ffffff;
    border: 1px solid rgba(239, 68, 68, 0.8);
}
.badge.score-tier-red-3 {
    background: #991b1b;
    color: #ffffff;
    border: 1px solid #7f1d1d;
    box-shadow: 0 0 18px rgba(239, 68, 68, 0.5);
    text-shadow: 0 0 4px rgba(153, 27, 27, 0.9);
}

body.light-mode .badge.score-tier-red-1 {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fecaca;
}
body.light-mode .badge.score-tier-red-2 {
    background: #ef4444;
    color: #ffffff;
    border-color: #dc2626;
}
body.light-mode .badge.score-tier-red-3 {
    background: #7f1d1d;
    color: #ffffff;
    border-color: #450a0a;
    box-shadow: 0 0 10px rgba(220, 38, 38, 0.35);
    text-shadow: none;
}

/* Gradient score badge — colors are computed per-row and applied inline.
   This class just handles the shared structural bits. */
.badge.score-gradient {
    border: 1px solid transparent;
    font-weight: 700;
    min-width: 26px;
    text-align: center;
}

/* Theme-toggle icon buttons — compact and center the SVG */
.theme-btn {
    padding: 0.4rem 0.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.theme-btn svg {
    display: block;
}

/* Flag buttons — swap the text label for a compact flag icon */
.flag-btn {
    padding: 0.4rem 0.6rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.flag-icon {
    display: block;
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
    pointer-events: none; /* clicks pass through to the button */
}
body.light-mode .flag-icon {
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25);
}

.badge.hc {
    background: rgba(16, 185, 129, 0.15);
    color: var(--hc-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge.standard {
    background: rgba(148, 163, 184, 0.15);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

tbody tr {
    animation: fadeIn 0.4s ease forwards;
    opacity: 0;
}

/* Dropdown Styles */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
}

.dropdown-content {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 120%;
    right: 0;
    background: var(--sticky-bg);
    min-width: 220px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
    z-index: 300;
    border-radius: 8px;
    border: 1px solid var(--border);
    padding: 0.8rem 0;
    max-height: 400px;
    overflow-y: auto;
}

.dropdown-content.hidden {
    display: none;
}

.dropdown-item {
    padding: 0.5rem 1.2rem;
    color: var(--text-primary);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    transition: background 0.2s;
    user-select: none;
}

.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.08);
}

.dropdown-item input {
    cursor: pointer;
    accent-color: var(--accent);
    width: 14px;
    height: 14px;
}

/* Narrow screens: tighten everything further so columns aren't padded out on mobile */
@media (max-width: 768px) {
    .glass-header {
        padding: 0.8rem 0.9rem;
    }
    .header-content {
        flex-wrap: wrap;
        gap: 0.6rem;
    }
    .controls-area {
        gap: 0.6rem;
        flex-wrap: wrap;
    }
    .logo-area h1 {
        font-size: 1.3rem;
    }
    .subtitle {
        font-size: 0.75rem;
    }
    .table-container {
        padding: 0.5rem;
    }
    th, td {
        padding: 0.35rem 0.4rem;
        font-size: 0.8rem;
    }
    td {
        max-width: 160px;
    }
    .badge {
        padding: 0.15rem 0.35rem;
        font-size: 0.7rem;
    }
    /* Shrink the sticky left columns. Ticker now carries a small logo +
       symbol so its width budget grew slightly. Name was removed from the
       column list entirely; nothing's sticky beyond Ticker now. */
    th:nth-child(1), td:nth-child(1) { width: 34px; max-width: 38px; min-width: 32px; }
    th:nth-child(2), td:nth-child(2) { width: 96px; max-width: 110px; min-width: 88px; left: 32px; }
}

/* Phone-portrait optimization (iPhone 16 Pro Max ≈ 440px CSS, smaller phones
   down to ~360px). Goal: every data column visible at a glance, no horizontal
   scroll. Hide the Name column, kill sort icons, collapse padding, and force
   the position-type toggle's buttons to equal widths so the slider thumb
   doesn't bleed across button boundaries. */
@media (max-width: 480px) {
    /* === Header chrome === */
    .glass-header {
        padding: 0.55rem 0.6rem;
    }
    .header-content {
        /* Stack title above controls on phone — saves horizontal real estate */
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    .header-content .logo-area,
    .header-content .controls-area {
        grid-column: 1;
        justify-self: center;
    }
    .logo-area h1 {
        font-size: 1.15rem;
    }
    .subtitle {
        font-size: 0.68rem;
    }
    .controls-area {
        gap: 0.4rem;
    }

    /* === Position-type toggle ===
       Force equal-width segments so the slider thumb (which assumes 1/3
       widths) doesn't bleed past the active button. min-width: 80px fits
       "Chokepoint" at the chosen font; flex:1 lets them all grow equally
       when there's extra room. */
    .position-filter-bar {
        gap: 0.5rem;
        padding: 0.5rem 0.4rem 0.3rem;
    }
    .position-btn {
        flex: 1 1 0;
        min-width: 80px;
        font-size: 0.72rem;
        padding: 0.4rem 0.4rem;
    }
    .position-explainer {
        font-size: 0.68rem;
    }

    /* === Table: hide Upside column, kill sort icons, collapse padding ===
       Name was already removed from simpleCols entirely. Upside (Target/Price
       multiplier) is the most redundant column on mobile — Target conveys
       essentially the same info as a price range. Hidden below 480px to make
       room for the new Change % column. Re-appears in landscape (>480px).
       After Target/Upside swap, Upside lives at position 8 (Target is now 9). */
    .table-container {
        padding: 0.3rem 0.2rem;
    }

    /* Hide the Upside column (now 8th, after the swap with Target) on phones */
    th:nth-child(8), td:nth-child(8) {
        display: none;
    }

    /* Sort glyph (↕ ↑ ↓) eats too much horizontal real estate on small
       screens — every column header gives up ~12px to it. Hidden on phone;
       headers are still clickable, the cursor stays pointer, and the
       hover/active background still telegraphs sortability. */
    th .sort-icon {
        display: none;
    }

    th, td {
        padding: 0.28rem 0.18rem;
        font-size: 0.7rem;
    }
    th {
        font-size: 0.62rem;
        letter-spacing: 0;
        padding: 0.3rem 0.18rem;
    }
    td {
        max-width: 110px;
    }

    /* Sticky columns: Rank (1) + Ticker (2). Ticker is wider on mobile to
       accommodate the 14px logo + a few characters of symbol. */
    th:nth-child(1), td:nth-child(1) {
        width: 28px; max-width: 32px; min-width: 26px;
        padding-left: 0.2rem; padding-right: 0.1rem;
    }
    th:nth-child(2), td:nth-child(2) {
        width: 82px; max-width: 92px; min-width: 76px;
        left: 26px;
        padding-left: 0.15rem; padding-right: 0.2rem;
    }

    /* Smaller ticker logo on phones — 14px circle with tighter gap. */
    .ticker-logo {
        width: 14px;
        height: 14px;
        font-size: 0.5rem;
    }
    .ticker-cell {
        gap: 0.25rem;
    }

    /* Score badges — minimum width removed so cells collapse to badge size,
       padding tightened so Total/Base/Entry don't accumulate visual gaps. */
    .badge {
        padding: 0.08rem 0.25rem;
        font-size: 0.62rem;
        min-width: 0;
        border-radius: 3px;
    }
    /* Disable the gradient glow on small screens — it bleeds visually at
       this size and adds no information. */
    .badge.score-gradient {
        box-shadow: none;
    }
}