/* Variables
   -------------------------------------------------- */
:root {
    --bg:        #FFFFFF;
    --text:      #111111;
    --muted:     #6B6B6B;
    --border:    #EBEBEB;
    --hover:     #F0F0F0;
    --code-bg:   #ECECEC;
    --terminal:  #0D0D0D;
    --green:     #22C55E;   /* terminal text only */
    --font:      'JetBrains Mono', 'Courier New', monospace;
}

/* Reset & base
   -------------------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
    height: 100vh;

    background-image:
        linear-gradient(rgba(0,0,0,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.025) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: center top;
}

a {
    color: var(--text);
    text-decoration: none;
}

/* Layout grid
   -------------------------------------------------- */
.layout-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: auto 1fr auto auto;
    height: calc(100vh - 64px);
    margin: 32px auto;
    border: 1px solid var(--border);
    max-width: 1200px;
    background-color: var(--bg);
}

/* Header
   -------------------------------------------------- */
header {
    grid-column: span 12;
    border-bottom: 1px solid var(--border);
    padding: 22px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1.5px;
}

.header-nav {
    display: flex;
    gap: 32px;
    font-size: 12px;
}

.header-nav a {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.15s;
}

.header-nav a:hover {
    color: var(--text);
}

/* Hero
   -------------------------------------------------- */
.manifesto {
    grid-column: span 12;
    padding: 72px 48px 48px;
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.manifesto h1 {
    font-size: 44px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 24px;
    letter-spacing: -0.3px;
}

.nowrap {
    white-space: nowrap;
}

.manifesto p {
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
    font-weight: 500;
}

/* Portal cards
   -------------------------------------------------- */
.modules {
    grid-column: span 12;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--border);
}

.module-card {
    display: flex;
    flex-direction: column;
    padding: 36px 40px;
    border-right: 1px solid var(--border);
    transition: background-color 0.15s;
}

.module-card:last-child {
    border-right: none;
}

.module-card:hover {
    background-color: var(--hover);
}

.module-card h2 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.module-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 2px 7px;
    vertical-align: middle;
}

.module-card p {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.65;
}

.module-card code {
    font-size: 11px;
    background: var(--code-bg);
    padding: 1px 5px;
}

/* Footer
   -------------------------------------------------- */
footer {
    grid-column: span 12;
    padding: 22px 48px;
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 11px;
}

/* Sub-pages
   -------------------------------------------------- */
.sub-body {
    overflow-y: auto;
    min-height: 100vh;
}

.sub-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: auto 1fr auto;
    min-height: calc(100vh - 64px);
    margin: 32px auto;
    border: 1px solid var(--border);
    max-width: 1200px;
    background-color: var(--bg);
}

.sub-header {
    grid-column: span 12;
    border-bottom: 1px solid var(--border);
    padding: 22px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sub-header .back {
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.15s;
}

.sub-header .back:hover {
    color: var(--text);
}

.page-content {
    grid-column: span 12;
    padding: 48px;
}

.page-content h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-content h2 {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    margin: 36px 0 12px;
}

.page-content p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

.page-content ul {
    list-style: none;
    font-size: 13px;
    color: #555;
}

.page-content li {
    padding: 3px 0;
    padding-left: 12px;
    position: relative;
}

.page-content li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 4px;
    height: 1px;
    background: var(--border);
}

.page-content code {
    font-size: 12px;
    background: var(--code-bg);
    padding: 1px 5px;
}

/* Terminal block
   -------------------------------------------------- */
.terminal-block {
    background: var(--terminal);
    color: var(--green);
    padding: 16px 24px;
    font-size: 13px;
    overflow-x: auto;
    white-space: nowrap;
    margin: 16px 0;
}

.terminal-prompt {
    color: #666;
    margin-right: 14px;
    user-select: none;
}

/* Tables (shared)
   -------------------------------------------------- */
.table-wrap {
    overflow-x: auto;
}

.release-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.release-table th {
    text-align: left;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    padding: 0 20px 10px 0;
    border-bottom: 1px solid var(--border);
    font-weight: 400;
}

.release-table td {
    padding: 10px 20px 10px 0;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

/* Cell variants
   -------------------------------------------------- */
.cell-version {
    font-weight: 700;
}

.cell-venue {
    font-weight: 700;
    font-size: 13px;
    vertical-align: top;
}

.cell-mono {
    font-size: 10px;
    color: var(--muted);
    word-break: break-all;
    max-width: 340px;
}

.cell-dl {
    text-align: right;
}

.cell-dl a {
    display: inline-block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 5px 14px;
    border: 1px solid var(--border);
    margin-right: 6px;
    transition: background-color 0.15s, border-color 0.15s;
}

.cell-dl a:hover {
    background: var(--hover);
    border-color: var(--muted);
}

/* Mode indicators (Live / Paper / Replay)
   -------------------------------------------------- */
.cell-mode {
    text-align: center;
    width: 44px;
}

.cell-yes {
    font-weight: 700;
    font-size: 16px;
    text-align: center;
}

.cell-no {
    color: var(--muted);
    text-align: center;
}

/* Venue group separator
   -------------------------------------------------- */
.venue-group-end td {
    border-bottom: 1px solid var(--border);
}

/* Divider row (e.g. Datafeed / Execution)
   -------------------------------------------------- */
.venue-divider td {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--muted);
    padding-top: 14px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}


/* Release notes
   -------------------------------------------------- */
.release-note {
    margin-bottom: 24px;
}

.release-note h3 {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.note-date {
    font-weight: 400;
    color: var(--muted);
    font-size: 11px;
}

/* Responsive
   -------------------------------------------------- */
@media (max-width: 960px) {
    .layout-grid,
    .sub-grid {
        margin: 0;
        height: 100vh;
        min-height: 100vh;
        border: none;
    }

    .manifesto h1 {
        font-size: 28px;
    }

    .modules {
        grid-template-columns: 1fr;
    }

    .module-card {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .module-card:last-child {
        border-bottom: none;
    }

    header,
    .sub-header {
        padding: 18px 24px;
    }

    .manifesto {
        padding: 40px 24px;
    }

    .manifesto p {
        max-width: none;
    }

    .module-card {
        padding: 28px 24px;
    }

    .page-content {
        padding: 32px 24px;
    }

    footer {
        padding: 18px 24px;
    }
}