/* === Accessibility-first CSS === */
/* High contrast, large text, clear focus indicators */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-card: #222222;
    --bg-input: #2a2a2a;
    --text-primary: #f0f0f0;
    --text-secondary: #cccccc;
    --text-muted: #999999;
    --accent: #4da6ff;
    --accent-hover: #80c0ff;
    --positive: #00cc66;
    --positive-bg: #0a2a1a;
    --negative: #ff4444;
    --negative-bg: #2a0a0a;
    --warning: #ffaa00;
    --warning-bg: #2a2200;
    --border: #444444;
    --focus-ring: #ffdd00;
    --font-size-base: 1.125rem;
    --font-size-lg: 1.375rem;
    --font-size-xl: 1.75rem;
    --font-size-2xl: 2.25rem;
    --font-size-sm: 1rem;
    --line-height: 1.6;
    --radius: 8px;
    --spacing: 1.5rem;
}

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

html { font-size: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: var(--font-size-base);
    line-height: var(--line-height);
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--focus-ring);
    color: #000;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-lg);
    font-weight: 700;
    z-index: 1000;
    text-decoration: none;
}
.skip-link:focus { top: 0; }

/* Focus styles */
:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 3px; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* Navigation */
header {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border);
    padding: 1rem var(--spacing);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.nav-brand {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--accent);
    margin-right: 1rem;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
    flex: 1;
}

.nav-tab {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: background 0.15s;
}
.nav-tab:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-tab-active {
    background: var(--accent);
    color: #000;
}
.nav-tab-active:hover { background: var(--accent-hover); }

.nav-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: auto;
}

.nav-user { color: var(--text-secondary); font-size: var(--font-size-sm); }
.nav-link { color: var(--accent); text-decoration: underline; font-size: var(--font-size-sm); padding: 0.25rem; }
.nav-link:hover { color: var(--accent-hover); }

/* Form hints */
.form-hint { display: block; margin-top: 0.25rem; font-size: var(--font-size-sm); color: var(--text-muted); }
.back-link { margin-top: 1.5rem; text-align: center; }
.back-link a { color: var(--accent); font-size: var(--font-size-base); }

/* Main content */
main { max-width: 1400px; margin: 0 auto; padding: var(--spacing); }

/* Breadcrumb */
.breadcrumb {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.breadcrumb a { color: var(--accent); }

/* Flash messages */
.flash-container { margin-bottom: var(--spacing); }
.flash {
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 2px solid;
}
.flash-error { background: var(--negative-bg); color: var(--negative); border-color: var(--negative); }
.flash-success { background: var(--positive-bg); color: var(--positive); border-color: var(--positive); }

/* Login page */
.login-container {
    display: flex; justify-content: center; align-items: center;
    min-height: 60vh; padding: var(--spacing);
}
.login-card {
    background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius); padding: 3rem; width: 100%; max-width: 480px;
}
.login-card h1 { font-size: var(--font-size-2xl); margin-bottom: 0.5rem; }
.login-subtitle { color: var(--text-secondary); margin-bottom: 2rem; }

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input {
    width: 100%; padding: 0.875rem 1rem; font-size: var(--font-size-lg);
    background: var(--bg-input); color: var(--text-primary);
    border: 2px solid var(--border); border-radius: var(--radius);
}
.form-group input:focus { border-color: var(--accent); }

/* Buttons */
.btn {
    display: inline-block; padding: 0.875rem 2rem; font-size: var(--font-size-lg);
    font-weight: 700; border: 2px solid transparent; border-radius: var(--radius);
    cursor: pointer; text-decoration: none; text-align: center;
}
.btn-primary { background: var(--accent); color: #000; width: 100%; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-small {
    padding: 0.5rem 1rem; font-size: var(--font-size-sm);
    background: var(--bg-card); color: var(--text-primary);
    border: 2px solid var(--border);
}
.btn-small:hover { background: var(--bg-secondary); border-color: var(--accent); }

/* Dashboard */
.dashboard { padding-bottom: 3rem; }
.dashboard h1 { font-size: var(--font-size-2xl); margin-bottom: 0.25rem; }
.dashboard-subtitle { color: var(--text-secondary); font-size: var(--font-size-base); margin-bottom: 2rem; }

/* KPI Cards */
.kpi-section { margin-bottom: 3rem; }
.kpi-section h2 { font-size: var(--font-size-xl); margin-bottom: 1rem; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.kpi-grid-small { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.kpi-card {
    background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem; text-align: center;
}
.kpi-card.kpi-positive { border-color: var(--positive); background: var(--positive-bg); }
.kpi-card.kpi-negative { border-color: var(--negative); background: var(--negative-bg); }
.kpi-card.kpi-warning { border-color: var(--warning); background: var(--warning-bg); }
.kpi-card.kpi-renewal { border-color: #6bcb77; background: #0a2a1a; }
.kpi-card.kpi-initial { border-color: #4d96ff; background: #0a1a2a; }
.kpi-card.kpi-additional { border-color: #ff922b; background: #2a1a0a; }

.kpi-label { display: block; font-size: var(--font-size-sm); color: var(--text-secondary); margin-bottom: 0.5rem; font-weight: 600; }
.kpi-value { display: block; font-size: var(--font-size-2xl); font-weight: 800; color: var(--text-primary); }
.kpi-detail { display: block; font-size: var(--font-size-sm); color: var(--text-muted); margin-top: 0.5rem; }

/* Chart sections */
.chart-section, .detail-section { margin-bottom: 3rem; }
.chart-section h2, .detail-section h2 { font-size: var(--font-size-xl); margin-bottom: 0.5rem; }
.chart-description { color: var(--text-secondary); font-size: var(--font-size-sm); margin-bottom: 1rem; }

.chart-container {
    background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1rem;
    position: relative; height: 400px;
}
.chart-container-bar { height: 300px; }
.chart-container-donut { height: 300px; max-width: 600px; }

/* Drill-down panel */
.drill-down-panel {
    background: var(--bg-card); border: 2px solid var(--accent);
    border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem;
}
.drill-down-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1rem; flex-wrap: wrap; gap: 0.5rem;
}
.drill-down-header h3 { font-size: var(--font-size-lg); color: var(--accent); }
.drill-down-total { font-size: var(--font-size-lg); margin-bottom: 1rem; }

/* Data tables */
.data-table-toggle { margin-top: 0.5rem; }
.data-table-toggle summary {
    cursor: pointer; font-size: var(--font-size-base); font-weight: 600;
    color: var(--accent); padding: 0.75rem 0; text-decoration: underline;
}
.data-table-toggle summary:hover { color: var(--accent-hover); }

.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }

.data-table { width: 100%; border-collapse: collapse; font-size: var(--font-size-base); margin-top: 0.5rem; }
.data-table th, .data-table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { background: var(--bg-secondary); font-weight: 700; white-space: nowrap; }
.data-table thead th { border-bottom: 3px solid var(--accent); }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table tbody tr:hover { background: var(--bg-secondary); }
.data-table tfoot th, .data-table tfoot td { border-top: 3px solid var(--border); font-weight: 700; }

/* Clickable rows */
.clickable-row { cursor: pointer; }
.clickable-row:hover { background: var(--bg-card) !important; }
.clickable-row:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: -3px; }

/* Status colors */
.positive { color: var(--positive); font-weight: 700; }
.negative { color: var(--negative); font-weight: 700; }
.warning { color: var(--warning); font-weight: 700; }
.row-future { opacity: 0.5; }

/* Badges */
.type-badge, .status-badge, .stage-badge {
    display: inline-block; padding: 0.2rem 0.6rem; border-radius: 4px;
    font-size: var(--font-size-sm); font-weight: 600;
}
.type-badge.type-renewal { background: #6bcb7733; color: #6bcb77; border: 1px solid #6bcb77; }
.type-badge.type-initial-sale { background: #4d96ff33; color: #4d96ff; border: 1px solid #4d96ff; }
.type-badge.type-additional-sale { background: #ff922b33; color: #ff922b; border: 1px solid #ff922b; }

.status-badge.status-active { background: #6bcb7733; color: #6bcb77; }
.status-badge.status-inactive { background: #ff6b6b33; color: #ff6b6b; }
.status-badge.status-pre-sale { background: #4d96ff33; color: #4d96ff; }
.status-badge.status-onboarding { background: #ffd93d33; color: #ffd93d; }
.status-badge.status-offboarding { background: #ff922b33; color: #ff922b; }
.status-badge.status-unknown { background: #99999933; color: #999999; }

.stage-badge.stage-won { background: #6bcb7733; color: #6bcb77; }
.stage-badge.stage-lost { background: #ff6b6b33; color: #ff6b6b; }
.stage-badge.stage-pending { background: #ffd93d33; color: #ffd93d; }

/* Customer search */
.search-section { margin-bottom: 2rem; }
.search-bar { position: relative; max-width: 600px; }
.search-bar input[type="search"] {
    width: 100%; padding: 1rem 1.5rem; font-size: var(--font-size-lg);
    background: var(--bg-card); color: var(--text-primary);
    border: 2px solid var(--border); border-radius: var(--radius);
}
.search-bar input:focus { border-color: var(--accent); }

.search-results {
    position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
    background: var(--bg-card); border: 2px solid var(--accent);
    border-top: none; border-radius: 0 0 var(--radius) var(--radius);
    max-height: 400px; overflow-y: auto;
}
.search-result-item {
    display: flex; flex-direction: column; padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border); text-decoration: none; color: var(--text-primary);
}
.search-result-item:hover { background: var(--bg-secondary); }
.search-result-name { font-weight: 700; font-size: var(--font-size-base); }
.search-result-meta { font-size: var(--font-size-sm); color: var(--text-muted); margin-top: 0.25rem; display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

/* Account info grid */
.account-info-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem; background: var(--bg-card); border: 2px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem;
}
.info-item { }
.info-label { display: block; font-size: var(--font-size-sm); color: var(--text-muted); font-weight: 600; margin-bottom: 0.25rem; }
.info-value { font-size: var(--font-size-base); color: var(--text-primary); }

/* Footer */
footer {
    text-align: center; padding: 2rem var(--spacing);
    color: var(--text-muted); font-size: var(--font-size-sm);
    border-top: 1px solid var(--border); margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --font-size-base: 1rem; --font-size-lg: 1.25rem;
        --font-size-xl: 1.5rem; --font-size-2xl: 1.75rem; --spacing: 1rem;
    }
    .kpi-grid { grid-template-columns: 1fr; }
    .nav-links { order: 3; width: 100%; }
    .login-card { padding: 2rem; }
    .chart-container { height: 300px; }
    .nav-right { font-size: var(--font-size-sm); gap: 0.75rem; }
}

/* High contrast mode */
@media (prefers-contrast: more) {
    :root {
        --bg-primary: #000; --bg-secondary: #111; --bg-card: #1a1a1a;
        --text-primary: #fff; --text-secondary: #e0e0e0;
        --border: #666; --accent: #66bbff; --positive: #00ff77; --negative: #ff5555;
    }
    .data-table th, .data-table td { border: 1px solid var(--border); }
}

/* Priority badges */
.priority-badge {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    font-size: var(--font-size-sm);
    font-weight: 700;
}
.priority-high { background: var(--negative); color: #fff; }
.priority-normal { background: var(--warning); color: #000; }
.priority-low { background: #555; color: var(--text-primary); }

/* Overdue date styling */
.overdue-date { color: var(--negative); font-weight: 700; }

/* KPI color variants for activities */
.kpi-critical { border-left: 4px solid var(--negative); }
.kpi-critical .kpi-value { color: var(--negative); }
.kpi-warning { border-left: 4px solid var(--warning); }
.kpi-warning .kpi-value { color: var(--warning); }

/* Section help text */
.section-help {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    margin: 0.25rem 0 1rem;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}
.empty-state h2 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Print */
@media print {
    body { background: white; color: black; }
    header, footer, .skip-link, .nav-right, .search-section, .drill-down-panel { display: none; }
    .kpi-card { border: 1px solid #ccc; background: white; }
    .kpi-value, .kpi-label { color: black; }
    .chart-container { break-inside: avoid; }
}