/* ══════════════════════════════════════════════
   H1B Sponsor Data — Main Stylesheet
   Mobile-first, professional data dashboard
   ══════════════════════════════════════════════ */

:root {
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7F8FA;
    --color-bg-dark: #EEF0F4;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-text-lighter: #9CA3AF;
    --color-primary: #2563EB;
    --color-primary-dark: #1D4ED8;
    --color-primary-light: #DBEAFE;
    --color-primary-xlight: #EFF6FF;
    --color-success: #059669;
    --color-success-light: #D1FAE5;
    --color-danger: #DC2626;
    --color-danger-light: #FEE2E2;
    --color-warning: #D97706;
    --color-warning-light: #FEF3C7;
    --color-border: #E5E7EB;
    --color-footer-bg: #111827;
    --color-footer-text: #9CA3AF;
    --color-footer-heading: #F9FAFB;
    --color-footer-border: #1F2937;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-width: 1200px;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.10);
    --shadow-lift: 0 8px 24px rgba(37,99,235,0.12);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, p, ul, ol, table { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; }

/* Base */
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

/* Typography */
h1 { font-size: 1.75rem; font-weight: 700; line-height: 1.3; margin-bottom: 1rem; letter-spacing: -0.02em; }
h2 {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 2rem 0 0.75rem;
    color: var(--color-text);
    padding-left: 0.75rem;
    border-left: 4px solid var(--color-primary);
    letter-spacing: -0.01em;
}
h3 { font-size: 1.1rem; font-weight: 600; margin: 1.5rem 0 0.5rem; }
p { margin-bottom: 1rem; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--color-primary-dark); }
strong { font-weight: 600; }
time { color: var(--color-text-light); }

/* Layout */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1rem; }
.section { margin-bottom: 2.5rem; }

/* ── Header ── */
.site-header {
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-primary);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(37,99,235,0.07);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.site-logo {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-text);
    white-space: nowrap;
    letter-spacing: -0.02em;
}
.site-logo:hover { text-decoration: none; }
.site-logo span {
    color: var(--color-primary);
    background: linear-gradient(135deg, #2563EB, #7C3AED);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.header-search {
    flex: 1;
    min-width: 200px;
    max-width: 500px;
}
.header-nav {
    display: flex;
    gap: 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
}
.header-nav a {
    color: var(--color-text-light);
    transition: color 0.15s;
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
}
.header-nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom-color: var(--color-primary);
}

/* ── Search form ── */
.search-form {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--color-bg-alt);
    transition: box-shadow 0.2s, border-color 0.2s;
}
.search-form:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}
.search-form input {
    flex: 1;
    border: none;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-family: var(--font-family);
    background: transparent;
    outline: none;
}
.search-form button {
    border: none;
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: background 0.15s;
}
.search-form button:hover { background: var(--color-primary-dark); }

/* ── Hero ── */
.hero {
    /* Full-bleed breakout from .container */
    width: 100vw;
    position: relative;
    left: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    padding: 4rem 1.5rem 3.5rem;
    margin-bottom: 2.5rem;
    background: linear-gradient(135deg, var(--color-primary-xlight) 0%, var(--color-primary-light) 60%, #E0E7FF 100%);
    text-align: center;
    border-bottom: 1px solid #BFDBFE;
}
.hero h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #111827;
    letter-spacing: -0.03em;
}
.hero p {
    color: var(--color-text-light);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    font-weight: 500;
}
.hero .search-form {
    max-width: 620px;
    margin: 0 auto;
    background: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(37,99,235,0.18);
    border-radius: 10px;
}
.hero .search-form input { padding: 0.875rem 1.1rem; font-size: 1rem; }
.hero .search-form button { padding: 0.875rem 1.5rem; font-size: 1rem; }

/* ── Breadcrumb ── */
.breadcrumb {
    padding: 0.75rem 0;
    font-size: 0.8rem;
    color: var(--color-text-light);
}
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem; }
.breadcrumb li::after { content: '/'; margin-left: 0.25rem; color: var(--color-text-lighter); }
.breadcrumb li:last-child::after { content: ''; }
.breadcrumb a { color: var(--color-text-light); }
.breadcrumb a:hover { color: var(--color-primary); }

/* ── Stat grid ── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin: 0 0 2.5rem;
}
.stat-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1rem 1rem;
    text-align: center;
    transition: box-shadow 0.2s, transform 0.2s;
}
.stat-card:hover {
    box-shadow: var(--shadow-lift);
    transform: translateY(-2px);
}
.stat-card .stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.35rem;
    display: block;
    line-height: 1;
}
.stat-card .stat-label {
    font-size: 0.7rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.stat-card .stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.02em;
    line-height: 1.1;
}
.stat-card .stat-sub {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

/* ── Data tables ── */
.data-table-wrap { overflow-x: auto; margin: 1rem 0; border-radius: var(--radius); border: 1px solid var(--color-border); }
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.data-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--color-bg-alt);
    border-bottom: 2px solid var(--color-border);
    font-weight: 700;
    font-size: 0.72rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}
.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
    transition: background 0.1s;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr {
    border-left: 3px solid transparent;
    transition: border-color 0.15s, background 0.15s;
}
.data-table tbody tr:hover {
    background: var(--color-primary-xlight);
    border-left-color: var(--color-primary);
}
.data-table tbody tr:hover td { background: transparent; }
.data-table .text-right { text-align: right; }
.data-table .text-center { text-align: center; }
.data-table .nowrap { white-space: nowrap; }

/* Rank badge */
.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.6rem;
    height: 1.6rem;
    border-radius: 50%;
    font-size: 0.72rem;
    font-weight: 800;
}
.rank-1 { background: #FEF3C7; color: #78350F; }
.rank-2 { background: #F3F4F6; color: #374151; }
.rank-3 { background: #FEE2E2; color: #7F1D1D; }
.rank-other { color: var(--color-text-lighter); font-size: 0.8rem; font-weight: 600; }

/* ── Badges ── */
.badge {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.badge-certified { background: var(--color-success-light); color: var(--color-success); }
.badge-denied { background: var(--color-danger-light); color: var(--color-danger); }
.badge-withdrawn { background: var(--color-warning-light); color: var(--color-warning); }
.badge-green-card { background: #EDE9FE; color: #7C3AED; }
.badge-above-market { background: var(--color-success-light); color: var(--color-success); }
.badge-below-market { background: var(--color-warning-light); color: var(--color-warning); }
.badge-at-market { background: var(--color-bg-dark); color: var(--color-text-light); }

/* ── Text utils ── */
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-muted { color: var(--color-text-light); }

/* ── Cards ── */
.card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    margin: 1rem 0;
}
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.1rem 1rem;
    transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.card:hover {
    box-shadow: var(--shadow-lift);
    transform: translateY(-2px);
    border-color: #BFDBFE;
}
.card-title {
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}
.card-meta {
    font-size: 0.8rem;
    color: var(--color-text-light);
}
.card-stats {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.85rem;
}

/* ── Salary comparison widget ── */
.salary-compare {
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin: 1rem 0;
    border: 1px solid var(--color-border);
}
.salary-bar-wrap { margin: 0.75rem 0; }
.salary-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
}
.salary-bar {
    height: 24px;
    border-radius: 4px;
    position: relative;
}
.salary-bar-h1b { background: var(--color-primary); }
.salary-bar-bls { background: var(--color-bg-dark); border: 1px solid var(--color-border); }
.salary-diff {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

/* ── Pagination ── */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.25rem;
    padding: 2rem 0;
    font-size: 0.875rem;
}
.pagination a, .pagination span {
    display: inline-block;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    font-weight: 500;
    transition: background 0.15s, border-color 0.15s;
}
.pagination a:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    text-decoration: none;
    color: var(--color-primary-dark);
}
.pagination .active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.pagination .disabled {
    color: var(--color-text-lighter);
    pointer-events: none;
}
.pagination .ellipsis { border: none; }

/* ── Link lists ── */
.link-list { list-style: none; }
.link-list li {
    padding: 0.625rem 0;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}
.link-list li:last-child { border-bottom: none; }
.link-list a { font-weight: 600; }
.link-list .meta { font-size: 0.85rem; color: var(--color-text-light); }

/* ── Footer (dark) ── */
.site-footer {
    background: var(--color-footer-bg);
    border-top: none;
    padding: 3rem 0 2rem;
    margin-top: 4rem;
    font-size: 0.8rem;
    color: var(--color-footer-text);
}
.footer-logo {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}
.footer-logo span { color: #60A5FA; }
.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}
.footer-col h4 {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-footer-heading);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.85rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a {
    color: var(--color-footer-text);
    font-size: 0.82rem;
    transition: color 0.15s;
}
.footer-col a:hover { color: #60A5FA; text-decoration: none; }
.footer-disclaimer {
    margin-top: 2.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid #1F2937;
    font-size: 0.7rem;
    line-height: 1.6;
    color: #6B7280;
    max-width: 760px;
}
.footer-copyright {
    margin-top: 1rem;
    font-size: 0.7rem;
    color: #6B7280;
}

/* ══ Responsive ══ */
@media (min-width: 640px) {
    .stat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 768px) {
    h1 { font-size: 2.25rem; }
    .hero h1 { font-size: 2.5rem; }
    .stat-grid { grid-template-columns: repeat(3, 1fr); }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    h1 { font-size: 2.5rem; }
    .hero h1 { font-size: 2.75rem; }
    .stat-grid { grid-template-columns: repeat(5, 1fr); }
    .card-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(4, 1fr); }
    .header-inner { flex-wrap: nowrap; }
}