/* ═══════════════════════════════════════════════
   RedLab Public Pages — Shared Styles
   ═══════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --red: #BA0000;
    --red-hover: #960000;
    --red-light: #FDE8E8;
    --dark: #111827;
    --gray: #6B7280;
    --gray-light: #F7F8FA;
    --border: #E5E7EB;
    --white: #FFFFFF;
}
body { font-family: 'Inter', sans-serif; color: var(--dark); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--red); text-decoration: none; line-height: 1; }
a:hover { opacity: 0.7; }
img { max-width: 100%; height: auto; }

.ln-container { max-width: 1140px; margin: 0 auto; padding: 0 32px; }
.ln-bg-light { background: var(--gray-light); }

/* ── Navbar ── */
.ln-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.ln-nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.ln-nav-logo { height: 36px; }
.ln-nav-links { display: flex; align-items: center; gap: 28px; }
.ln-nav-link { font-size: 14px; font-weight: 500; color: var(--gray); transition: color 0.2s; line-height: 1; }
.ln-nav-link:hover { color: var(--dark); opacity: 1; }
.ln-nav-active { color: var(--dark); font-weight: 600; }
.ln-btn-nav { padding: 8px 18px; font-size: 13px; }

/* Nav item with mega menu */
.ln-nav-item { position: static; }
.ln-nav-trigger { background: none; border: none; cursor: pointer; font: inherit; font-size: 14px; font-weight: 500; color: var(--gray); display: flex; align-items: center; gap: 4px; padding: 0; line-height: 1; transition: color 0.2s; }
.ln-nav-trigger:hover { color: var(--dark); }
.ln-nav-arrow { transition: transform 0.2s; }
.ln-nav-has-mega.is-open .ln-nav-arrow { transform: rotate(180deg); }
.ln-nav-has-mega.is-open .ln-nav-trigger { color: var(--dark); }

/* Gear (admin) */
.ln-nav-gear { background: none; border: none; cursor: pointer; color: var(--gray); padding: 4px; display: flex; align-items: center; transition: color 0.2s; }
.ln-nav-gear:hover { color: var(--red); }

/* Hamburger */
.ln-nav-hamburger { display: none; background: none; border: none; cursor: pointer; width: 28px; height: 20px; position: relative; padding: 0; }
.ln-nav-hamburger span { display: block; position: absolute; width: 100%; height: 2px; background: var(--dark); left: 0; transition: all 0.25s; }
.ln-nav-hamburger span:nth-child(1) { top: 0; }
.ln-nav-hamburger span:nth-child(2) { top: 9px; }
.ln-nav-hamburger span:nth-child(3) { top: 18px; }
.ln-nav-hamburger.is-open span:nth-child(1) { top: 9px; transform: rotate(45deg); }
.ln-nav-hamburger.is-open span:nth-child(2) { opacity: 0; }
.ln-nav-hamburger.is-open span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

/* ── Mega Menu Underlay (animated white panel, Determ pattern) ── */
.ln-mega-underlay { position: absolute; top: 100%; left: 0; right: 0; height: 0; background: #fff; border-top: 1px solid var(--border); z-index: 100; pointer-events: none; will-change: height; transition: height 0.35s cubic-bezier(0.4, 0, 0.2, 1); }
.ln-mega-underlay.is-open { pointer-events: auto; }

/* ── Mega Menu Panel (content fades in on top of underlay) ── */
.ln-mega { position: absolute; top: 100%; left: 0; right: 0; z-index: 200; background: transparent; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 0.12s ease, visibility 0.12s; }
.ln-nav-has-mega.is-open .ln-mega { opacity: 1; visibility: visible; pointer-events: auto; transition: opacity 0.22s ease 0.1s, visibility 0s; }
.ln-mega-inner { padding: 36px 48px 40px; display: flex; gap: 56px; }
.ln-mega-col { flex: 1; min-width: 0; }
.ln-mega-label { font-size: 18px; font-weight: 700; letter-spacing: 0; color: var(--dark); margin-bottom: 16px; }
.ln-mega-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.ln-mega-links a { font-size: 16px; color: var(--dark); font-weight: 400; transition: opacity 0.15s; line-height: 1.3; }
.ln-mega-links a:hover { color: var(--dark); opacity: 0.55; }

/* Dim non-active nav items when mega menu is open */
.ln-nav-links.has-mega-open > .ln-nav-has-mega:not(.is-open) .ln-nav-trigger,
.ln-nav-links.has-mega-open > a.ln-nav-link { color: #999; }

/* Mega overlay (semi-transparent below menu) */
.ln-mega-overlay { position: absolute; top: 100%; left: 0; right: 0; height: 100vh; background: rgba(0, 0, 0, 0.18); z-index: 99; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s 0.3s; }
.ln-mega-overlay.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s 0s; }

/* ── Mobile Drawer ── */
.ln-drawer-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.4); z-index: 1000; opacity: 0; visibility: hidden; transition: opacity 0.25s; }
.ln-drawer-overlay.is-visible { opacity: 1; visibility: visible; }
.ln-drawer { position: fixed; top: 0; right: 0; bottom: 0; width: 320px; max-width: 85vw; background: #fff; z-index: 1001; transform: translateX(100%); transition: transform 0.3s ease; display: flex; flex-direction: column; }
.ln-drawer.is-open { transform: translateX(0); }
.ln-drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.ln-drawer-logo { height: 28px; }
.ln-drawer-close { background: none; border: none; font-size: 28px; cursor: pointer; color: var(--gray); line-height: 1; padding: 0; }
.ln-drawer-body { flex: 1; overflow-y: auto; padding: 12px 0; }
.ln-drawer-section { border-bottom: 1px solid var(--border); }
.ln-drawer-trigger { width: 100%; background: none; border: none; cursor: pointer; font: inherit; font-size: 15px; font-weight: 600; color: var(--dark); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; text-align: left; }
.ln-drawer-chevron { transition: transform 0.2s; }
.ln-drawer-section.is-open .ln-drawer-chevron { transform: rotate(180deg); }
.ln-drawer-sub { display: none; padding: 0 20px 16px; }
.ln-drawer-section.is-open .ln-drawer-sub { display: block; }
.ln-drawer-label { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; color: var(--gray); margin: 12px 0 8px; }
.ln-drawer-label:first-child { margin-top: 0; }
.ln-drawer-link { display: block; font-size: 14px; color: var(--dark); padding: 6px 0; }
.ln-drawer-link:hover { color: var(--red); opacity: 1; }
.ln-drawer-top { padding: 14px 20px; font-size: 15px; font-weight: 600; color: var(--dark); border-bottom: 1px solid var(--border); }
.ln-drawer-foot { padding: 16px 20px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 8px; }

/* ── Buttons ── */
.ln-btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s; border: none; line-height: 1; }
.ln-btn-primary { background: var(--red); color: var(--white); }
.ln-btn-primary:hover { opacity: 0.7; }
.ln-btn-outline { background: transparent; color: var(--red); border: 1.5px solid var(--red); }
.ln-btn-outline:hover { opacity: 0.7; }
.ln-btn-white { background: var(--white); color: var(--red); }
.ln-btn-white:hover { opacity: 0.7; }
.ln-btn-lg { padding: 14px 36px; font-size: 16px; border-radius: 10px; }
.ln-btn-full { width: 100%; text-align: center; }

/* ── Sections ── */
.ln-section { padding: 80px 0; }
.ln-section-title { font-size: 32px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.ln-section-sub { font-size: 16px; color: var(--gray); max-width: 560px; margin: 0 auto 48px; line-height: 1.7; }

/* ── Big title (shared component) ── */
.ln-big-title { font-size: 36px; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 16px; }
.ln-desc { font-size: 16px; color: var(--gray); line-height: 1.7; margin-bottom: 28px; }

/* ── Media placeholders ── */
.ln-media-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; width: 100%; aspect-ratio: 4/3; background: var(--gray-light); border-radius: 12px; border: 2px dashed var(--border); color: #94A3B8; font-size: 13px; }
.ln-hint { font-size: 13px !important; color: #9CA3AF !important; }

/* ── Footer ── */
.ln-footer { background: #0B1120; padding: 80px 0 40px; }
.ln-footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px 48px; padding-bottom: 40px; }
.ln-footer-logo { height: 22px; margin-bottom: 8px; }
.ln-footer-desc { font-size: 14px; color: #7B8794; line-height: 1.55; margin-bottom: 24px; }
.ln-footer-email { font-size: 14px; color: #D1D5DB; display: block; margin-bottom: 18px; }
.ln-footer-email:hover { color: #fff; opacity: 1; }
.ln-footer-socials { display: flex; gap: 14px; }
.ln-footer-socials a { color: #4B5563; transition: color 0.2s; }
.ln-footer-socials a:hover { color: #fff; opacity: 1; }
.ln-footer-heading { line-height: 1; font-size: 20px; font-weight: 700; color: #F3F4F6; margin-bottom: 16px; }
.ln-footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.ln-footer-links li { line-height: 1.3; }
.ln-footer-links a { font-size: 14px; color: #7B8794; transition: color 0.2s; }
.ln-footer-links a:hover { color: #fff; opacity: 1; }
.ln-footer-bottom { border-top: 1px solid #1E293B; padding: 20px 0; text-align: center; }
.ln-footer-bottom p { font-size: 12px; color: #4B5563; }

/* ═══════════════ Responsive ═══════════════ */
@media (max-width: 900px) {
    .ln-big-title { font-size: 28px; }
    .ln-footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .ln-nav-links { display: none; }
    .ln-nav-hamburger { display: block; }
}
@media (max-width: 640px) {
    .ln-container { padding: 0 20px; }
    .ln-footer-grid { grid-template-columns: 1fr; gap: 32px; }
}