/* ============================================================
   Obsono Market Insight — site.css
   Styled after CattleFax portal
   ============================================================ */

:root {
    /* CattleFax brand */
    --cf-orange:      #EE6E1B;
    --cf-orange-dark: #cc5a0f;
    --cf-gray:        #828170;

    /* Portal UI chrome */
    --sidebar-bg:        #363840;
    --sidebar-bg-dark:   #22242a;
    --sidebar-active-bg: #484c56;
    --sidebar-text:      rgba(255,255,255,0.90);
    --sidebar-text-dim:  rgba(255,255,255,0.50);

    --font-sans:  'Avenir Next', 'Avenir', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Garamond', Georgia, 'Times New Roman', serif;

    --sidebar-width:  260px;
    --toc-width:      200px;
    --top-nav-height: 54px;
    --border-radius:  3px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 3px 10px rgba(0,0,0,0.12);

    --text-primary:   #1a1a1a;
    --text-secondary: #666;
    --bg-page:        #fff;
    --bg-outer:       #f0f0ee;
    --border-color:   #e0e0dc;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0; height: 100%;
    font-family: var(--font-sans);
    font-size: 15px;
    color: var(--text-primary);
    background-color: var(--bg-outer);
}

/* ============================================================
   App Shell
   ============================================================ */
.app-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    background: var(--bg-outer);
}

/* ============================================================
   Sidebar (left nav)
   ============================================================ */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.2s ease, min-width 0.2s ease;
    z-index: 100;
    flex-shrink: 0;
}

.sidebar.collapsed {
    width: 0;
    min-width: 0;
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 12px 12px 16px;
    background-color: var(--sidebar-bg-dark);
    flex-shrink: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-brand { display: flex; flex-direction: column; gap: 2px; }

.sidebar-brand-name {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    line-height: 1;
}

.sidebar-brand-sub {
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--sidebar-text-dim);
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

/* Collapse button inside sidebar header */
.sidebar-collapse-btn {
    background: none;
    border: none;
    color: var(--sidebar-text-dim);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 2px;
    line-height: 1;
    transition: color 0.15s ease, background 0.15s ease;
    flex-shrink: 0;
}
.sidebar-collapse-btn:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.sidebar-nav { flex: 1; padding: 6px 0 20px; }
.sidebar-nav ul { list-style: none; margin: 0; padding: 0; }

.sidebar-nav li { transition: background-color 0.12s ease; }

.sidebar-nav li:hover { background-color: rgba(255,255,255,0.07); }

.sidebar-nav li.active { background-color: var(--sidebar-active-bg); }

.sidebar-nav li a {
    display: block;
    padding: 9px 16px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.855rem;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.12s ease;
}

.sidebar-nav li.active a { color: #fff; font-weight: 600; }
.sidebar-nav li:hover a  { color: #fff; }

/* ============================================================
   Top Navigation Bar
   ============================================================ */
.top-nav {
    height: var(--top-nav-height);
    background-color: #fff;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    z-index: 50;
}

.top-nav-inner {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 20px;
    gap: 12px;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.15rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px 7px;
    border-radius: var(--border-radius);
    line-height: 1;
    transition: background-color 0.12s ease, color 0.12s ease;
    flex-shrink: 0;
}
.sidebar-toggle:hover { background-color: var(--bg-outer); color: var(--text-primary); }

.top-nav-brand {
    display: flex;
    align-items: baseline;
    gap: 4px;
    text-decoration: none;
    flex-shrink: 0;
}
.top-nav-brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--cf-gray);
    letter-spacing: 0.05em;
    line-height: 1;
}
.top-nav-brand-accent {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--cf-orange);
    line-height: 1;
}

.top-nav-divider {
    width: 1px;
    height: 26px;
    background-color: var(--border-color);
    flex-shrink: 0;
    margin: 0 4px;
}

.top-nav-title {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.top-nav-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.date-filter-form { display: flex; align-items: center; gap: 6px; }
.date-filter-form label { font-size: 0.78rem; color: var(--text-secondary); font-weight: 500; }
.date-filter-form input[type="month"] {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 4px 8px;
    font-size: 0.78rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    outline: none;
    background: #fff;
    transition: border-color 0.12s ease;
}
.date-filter-form input[type="month"]:focus { border-color: var(--cf-orange); }

.snapshot-badge {
    background-color: var(--bg-outer);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 3px 10px;
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.export-buttons { display: flex; gap: 5px; }

/* ============================================================
   Content Layout (main + optional ToC)
   ============================================================ */
.content-layout {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 28px 32px;
    background: var(--bg-page);
}

/* Right-hand Table of Contents panel */
.toc-panel {
    width: var(--toc-width);
    min-width: var(--toc-width);
    background: #fff;
    border-left: 1px solid var(--border-color);
    padding: 20px 14px;
    overflow-y: auto;
    flex-shrink: 0;
}

.toc-panel-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.toc-panel ul {
    list-style: none;
    margin: 0; padding: 0;
}

.toc-panel li { margin-bottom: 2px; }

.toc-panel li a {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.80rem;
    color: var(--text-primary);
    text-decoration: none;
    padding: 4px 2px;
    transition: color 0.12s ease;
    line-height: 1.3;
}

.toc-panel li a::before {
    content: '›';
    color: var(--cf-orange);
    font-size: 1rem;
    line-height: 1;
    flex-shrink: 0;
}

.toc-panel li a:hover { color: var(--cf-orange); }
.toc-panel li.active a { font-weight: 600; color: var(--cf-orange); }

/* ============================================================
   Publication Page
   ============================================================ */
.publication-page { max-width: 1100px; }

.page-header {
    margin-bottom: 22px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--cf-orange);
}

.page-header h1 {
    margin: 0;
    font-family: var(--font-serif);
    font-size: 1.65rem;
    font-weight: 600;
    color: var(--cf-orange);
    line-height: 1.2;
}

/* ============================================================
   Content Blocks
   ============================================================ */
.content-block { margin-bottom: 24px; }

.content-text p {
    margin: 0;
    font-size: 0.94rem;
    line-height: 1.75;
    color: var(--text-primary);
    max-width: 80ch;
}

/* ============================================================
   Charts
   ============================================================ */
.chart-title, .table-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chart-container {
    position: relative;
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px 14px 10px;
    max-height: 380px;
}

.chart-container canvas { max-height: 340px; }

/* ============================================================
   Tables
   ============================================================ */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.865rem;
    background-color: #fff;
}

.data-table thead {
    background-color: var(--sidebar-bg);
    color: #fff;
}

.data-table thead th {
    padding: 9px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    white-space: nowrap;
    border: none;
}

.data-table tbody tr:nth-child(even) { background-color: #f6f6f4; }
.data-table tbody tr:hover { background-color: rgba(238,110,27,0.05); }

.data-table tbody td {
    padding: 8px 14px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}
.data-table tbody tr:last-child td { border-bottom: none; }

/* ============================================================
   Layout variants
   ============================================================ */
.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    align-items: start;
}
.two-column .col-primary,
.two-column .col-secondary,
.two-column .col { min-width: 0; }

.template-1 .two-column { grid-template-columns: 3fr 2fr; }

.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-bottom: 22px;
}
.chart-grid-item { min-width: 0; }

.text-primary-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 26px;
    align-items: start;
}
.text-column, .chart-aside { min-width: 0; }

.image-text-layout { display: flex; flex-direction: column; gap: 18px; }
.page-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

/* ============================================================
   Page Index
   ============================================================ */
.page-index h1 {
    font-family: var(--font-serif);
    color: var(--cf-orange);
    margin-bottom: 8px;
}
.index-list { list-style: none; padding: 0; margin: 20px 0 0; }
.index-list li { border-bottom: 1px solid var(--border-color); }
.index-list li a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.93rem;
    transition: color 0.12s ease;
}
.index-list li a::before {
    content: '›';
    color: var(--cf-orange);
    font-size: 1rem;
}
.index-list li a:hover { color: var(--cf-orange); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 16px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.12s ease, color 0.12s ease;
    white-space: nowrap;
}

.btn-export {
    background-color: var(--cf-orange);
    color: #fff;
}
.btn-export:hover {
    background-color: var(--cf-orange-dark);
    color: #fff;
}

.btn-logout {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-size: 0.78rem;
    font-weight: 500;
}
.btn-logout:hover {
    background-color: var(--bg-outer);
    color: var(--text-primary);
}

/* Page navigation — orange arrow buttons like CattleFax */
.page-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 36px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-nav {
    background-color: var(--cf-orange);
    color: #fff;
    padding: 8px 18px;
    font-size: 0.85rem;
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.btn-nav:hover { background-color: var(--cf-orange-dark); color: #fff; }
.btn-nav.next { margin-left: auto; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
    .toc-panel { display: none; }
}

@media (max-width: 900px) {
    .two-column,
    .template-1 .two-column,
    .text-primary-layout,
    .chart-grid { grid-template-columns: 1fr; }
    .page-content { padding: 20px 16px; }
    .snapshot-badge { display: none; }
}

@media (max-width: 600px) {
    .sidebar {
        position: fixed;
        top: 0; left: 0;
        height: 100vh;
        z-index: 200;
    }
    .sidebar.collapsed { width: 0; }
    .date-filter-form { display: none; }
    .top-nav-divider { display: none; }
}