/* TOOLS INDEX — CLINICAL PRECISION */
:root {
    --cl-bg: #ffffff;
    --cl-surface: #f7f8fa;
    --cl-border: #d1d5db;
    --cl-border-soft: #e4e7eb;
    --cl-text: #111827;
    --cl-muted: #6b7280;
    --cl-subtle: #9ca3af;
    --cl-accent: #2563eb;
    --cl-accent-light: #eff6ff;
    --cl-accent-border: #93c5fd;
    --cl-font: 'Plus Jakarta Sans', system-ui, sans-serif;
    --cl-container: 1120px;
    --cl-pad-x: 40px;
}

.cl-body { background: var(--cl-bg); color: var(--cl-text); font-family: var(--cl-font); min-height: 100vh; }

.cl-hero { border-bottom: 1px solid var(--cl-border-soft); padding: clamp(56px, 8vw, 96px) var(--cl-pad-x) clamp(44px, 5vw, 64px); text-align: center; }
.cl-hero-inner { max-width: var(--cl-container); margin: 0 auto; }

.cl-pill { display: inline-flex; align-items: center; gap: 7px; background: var(--cl-accent-light); color: var(--cl-accent); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.03em; padding: 5px 13px; border-radius: 100px; border: 1px solid var(--cl-accent-border); margin-bottom: 28px; }

.cl-hero h1 { font-family: var(--cl-font); font-weight: 800; font-size: clamp(2.6rem, 6vw, 4.25rem); letter-spacing: -0.04em; line-height: 1.06; color: var(--cl-text); margin: 0 auto 20px; max-width: 680px; }
.cl-hero-sub { font-size: clamp(0.975rem, 1.5vw, 1.1rem); line-height: 1.65; color: var(--cl-muted); max-width: 520px; margin: 0 auto 32px; }

.cl-search-wrap { margin: 0 auto; max-width: 560px; position: relative; }
.cl-search-input { width: 100%; padding: 18px 64px 18px 52px; font-family: inherit; font-size: 1.05rem; font-weight: 500; background: var(--cl-bg); border: 1.5px solid var(--cl-border); border-radius: 14px; outline: none; color: var(--cl-text); box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04); transition: border-color 0.2s, box-shadow 0.2s; box-sizing: border-box; }
.cl-search-input::placeholder { color: var(--cl-subtle); font-weight: 400; }
.cl-search-input:focus { border-color: var(--cl-accent); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1), 0 2px 8px rgba(15, 23, 42, 0.04); }

.cl-search-icon { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--cl-subtle); pointer-events: none; display: flex; }
.cl-search-kbd { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); display: inline-flex; align-items: center; gap: 4px; font-size: 0.7rem; font-weight: 600; color: var(--cl-muted); background: var(--cl-surface); border: 1px solid var(--cl-border-soft); border-radius: 6px; padding: 4px 8px; letter-spacing: 0.02em; pointer-events: none; }
.cl-search-clear { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; border-radius: 50%; border: none; background: var(--cl-surface); color: var(--cl-muted); cursor: pointer; display: none; align-items: center; justify-content: center; font-size: 14px; line-height: 1; transition: background 0.15s, color 0.15s; }
.cl-search-clear:hover { background: var(--cl-border); color: var(--cl-text); }
.cl-search-wrap.has-value .cl-search-kbd { display: none; }
.cl-search-wrap.has-value .cl-search-clear { display: inline-flex; }

.cl-search-meta { margin-top: 22px; display: inline-flex; align-items: center; gap: 14px; font-size: 0.8rem; color: var(--cl-muted); flex-wrap: wrap; justify-content: center; }
.cl-search-meta .dot { color: var(--cl-subtle); }
.cl-search-meta strong { color: var(--cl-accent); font-weight: 700; }

.cl-card.cl-hidden, .cl-section.cl-hidden { display: none !important; }
.cl-empty { grid-column: 1 / -1; text-align: center; padding: 48px 24px; color: var(--cl-muted); font-size: 0.95rem; border: 1.5px dashed var(--cl-border); border-radius: 14px; background: var(--cl-surface); }
.cl-empty strong { color: var(--cl-text); font-weight: 700; }

.cl-layout { max-width: var(--cl-container); margin: 0 auto; padding: clamp(44px, 5vw, 72px) var(--cl-pad-x); display: grid; grid-template-columns: 196px 1fr; gap: clamp(32px, 4vw, 64px); align-items: start; }

.cl-sidebar { position: sticky; top: 32px; display: flex; flex-direction: column; gap: 2px; }
.cl-sidebar-label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cl-subtle); margin: 0 0 10px; }
.cl-nav-link { display: flex; justify-content: space-between; align-items: center; padding: 8px 10px; border-radius: 8px; font-size: 0.85rem; font-weight: 500; color: var(--cl-muted); text-decoration: none; transition: background 0.15s, color 0.15s; }
.cl-nav-count { font-size: 0.72rem; color: var(--cl-subtle); background: var(--cl-surface); border: 1px solid var(--cl-border-soft); border-radius: 100px; padding: 1px 7px; font-weight: 600; transition: background 0.15s, color 0.15s, border-color 0.15s; }
.cl-nav-link:hover { background: var(--cl-surface); color: var(--cl-text); }
.cl-nav-link.cl-active { background: var(--cl-accent-light); color: var(--cl-accent); font-weight: 600; }
.cl-nav-link.cl-active .cl-nav-count { background: var(--cl-accent); color: white; border-color: var(--cl-accent); }

.cl-section { margin-bottom: clamp(44px, 5vw, 64px); }
.cl-section-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--cl-border-soft); }
.cl-section-header h2 { font-family: var(--cl-font); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.015em; color: var(--cl-text); margin: 0; }
.cl-count-badge { font-size: 0.72rem; font-weight: 600; color: var(--cl-muted); background: var(--cl-surface); border: 1px solid var(--cl-border-soft); border-radius: 100px; padding: 2px 9px; }

.cl-grid { display: grid; gap: 14px; }
.cl-grid-3 { grid-template-columns: repeat(3, 1fr); }
.cl-grid-2 { grid-template-columns: repeat(2, 1fr); }
.cl-grid-1 { grid-template-columns: 1fr; }

.cl-card { display: flex; flex-direction: column; padding: 22px 22px 22px; background: var(--cl-bg); border: 1.5px solid var(--cl-border); border-radius: 14px; text-decoration: none; color: inherit; transition: border-color 0.18s, box-shadow 0.18s, transform 0.18s; }
.cl-card:hover { border-color: var(--cl-accent); box-shadow: 0 6px 24px rgba(37, 99, 235, 0.1), 0 2px 6px rgba(0,0,0,0.05); transform: translateY(-3px); }
.cl-card-icon { width: 38px; height: 38px; border-radius: 9px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; flex-shrink: 0; }
.cl-card h3 { font-family: var(--cl-font); font-weight: 700; font-size: 0.9rem; letter-spacing: -0.01em; line-height: 1.3; color: var(--cl-text); margin: 0 0 5px; }
.cl-card-desc { font-size: 0.8rem; line-height: 1.6; color: var(--cl-muted); flex: 1; margin: 0; }
.cl-card-link { display: inline-flex; align-items: center; gap: 4px; font-size: 0.78rem; font-weight: 600; color: var(--cl-accent); margin-top: 14px; transition: gap 0.18s; }
.cl-card:hover .cl-card-link { gap: 8px; }

.cl-card-featured { grid-column: 1 / -1; flex-direction: row; align-items: flex-start; gap: 18px; background: var(--cl-accent-light); border-color: var(--cl-accent-border); border-width: 1.5px; padding: 24px 26px; }
.cl-card-featured:hover { border-color: var(--cl-accent); box-shadow: 0 8px 28px rgba(37, 99, 235, 0.14), 0 2px 6px rgba(37, 99, 235, 0.06); }
.cl-card-featured .cl-card-icon { margin-bottom: 0; margin-top: 2px; }
.cl-featured-content { flex: 1; min-width: 0; }
.cl-featured-tag { display: inline-flex; align-items: center; gap: 5px; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--cl-accent); margin-bottom: 6px; }
.cl-card-featured h3 { font-size: 0.95rem; }
.cl-card-wide { flex-direction: row; align-items: center; gap: 16px; }
.cl-card-wide .cl-card-icon { margin-bottom: 0; flex-shrink: 0; }
.cl-card-wide-content { flex: 1; }
.cl-card-wide .cl-card-link { margin-top: 6px; }

.ic-bf, .ic-viz, .ic-cbc { background: #fef2f2; color: #dc2626; }
.ic-ffmi { background: #f0fdf4; color: #16a34a; }
.ic-tdee, .ic-orm { background: #fff7ed; color: #d97706; }
.ic-macro, .ic-ssc { background: #eff6ff; color: #2563eb; }
.ic-cdc, .ic-pp { background: #f0fdf4; color: #059669; }

.cl-faq { border-top: 1px solid var(--cl-border-soft); padding: clamp(44px, 5vw, 72px) var(--cl-pad-x); }
.cl-faq-inner { max-width: var(--cl-container); margin: 0 auto; display: grid; grid-template-columns: 260px 1fr; gap: clamp(32px, 4vw, 64px); }
.cl-faq-head { position: sticky; top: 32px; align-self: start; }
.cl-faq h2 { font-family: var(--cl-font); font-weight: 800; font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -0.03em; line-height: 1.1; color: var(--cl-text); margin: 0 0 12px; }
.cl-faq-sub { font-size: 0.875rem; line-height: 1.65; color: var(--cl-muted); max-width: 240px; }
.cl-faq-item { border-top: 1px solid var(--cl-border-soft); }
.cl-faq-item:last-child { border-bottom: 1px solid var(--cl-border-soft); }
.cl-faq-q { background: none; border: none; width: 100%; text-align: left; padding: 16px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-family: var(--cl-font); font-weight: 600; font-size: 0.9rem; color: var(--cl-text); line-height: 1.4; }
.cl-faq-toggle { flex-shrink: 0; width: 22px; height: 22px; border-radius: 6px; background: var(--cl-surface); border: 1px solid var(--cl-border-soft); display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--cl-muted); transition: transform 0.25s, background 0.2s, color 0.2s, border-color 0.2s; }
.cl-faq-item.open .cl-faq-toggle { transform: rotate(45deg); background: var(--cl-accent-light); border-color: var(--cl-accent-border); color: var(--cl-accent); }
.cl-faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s; }
.cl-faq-item.open .cl-faq-a { max-height: 300px; padding-bottom: 16px; }
.cl-faq-a p { color: var(--cl-muted); font-size: 0.875rem; line-height: 1.7; margin: 0; }

.cl-cta { background: var(--cl-text); color: white; padding: clamp(56px, 8vw, 96px) var(--cl-pad-x); }
.cl-cta-inner { max-width: var(--cl-container); margin: 0 auto; display: grid; grid-template-columns: 1fr auto; gap: clamp(32px, 5vw, 64px); align-items: center; }
.cl-cta-eyebrow { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #60a5fa; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.cl-cta-eyebrow::before { content: ''; width: 20px; height: 2px; background: #60a5fa; }
.cl-cta h2 { font-family: var(--cl-font); font-weight: 800; font-size: clamp(1.9rem, 4.5vw, 3.25rem); letter-spacing: -0.04em; line-height: 1.1; margin: 0 0 16px; }
.cl-cta-sub { font-size: 0.975rem; line-height: 1.65; color: rgba(255,255,255,0.55); max-width: 480px; }
.cl-cta-aside { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.cl-cta-data { font-size: 0.78rem; color: rgba(255,255,255,0.45); text-align: center; line-height: 1.8; }
.cl-cta-badge { transition: transform 0.2s, opacity 0.2s; }
.cl-cta-badge:hover { transform: translateY(-2px); opacity: 0.85; }
.cl-cta-badge img { height: 50px; width: auto; display: block; }

@media (max-width: 1024px) { .cl-grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .cl-layout { grid-template-columns: 1fr; gap: 28px; }
    .cl-sidebar { position: static; flex-direction: row; flex-wrap: wrap; gap: 6px; align-items: center; }
    .cl-sidebar-label { margin-bottom: 0; width: auto; }
    .cl-nav-link { padding: 5px 12px; border-radius: 100px; border: 1px solid var(--cl-border-soft); background: var(--cl-surface); }
    .cl-nav-count { display: none; }
    .cl-cta-inner { grid-template-columns: 1fr; }
    .cl-cta-aside { align-items: flex-start; }
    .cl-faq-inner { grid-template-columns: 1fr; }
    .cl-faq-head { position: static; }
    .cl-faq-sub { max-width: 100%; }
}
@media (max-width: 560px) {
    .cl-grid-3, .cl-grid-2 { grid-template-columns: 1fr; }
    .cl-card-featured { flex-direction: column; }
    .cl-card-featured .cl-card-icon { margin-bottom: 10px; margin-top: 0; }
    .cl-card-wide { flex-direction: column; align-items: flex-start; }
}