/* =====================================================
   KAIZEN SOLUTIONS — SHARED NAV + FOOTER STYLES
   Loaded on every page via <link rel="stylesheet" href="/shared/nav.css">
   ===================================================== */

/* ── NAV CORE ── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:22px 56px;display:flex;align-items:center;justify-content:space-between;transition:background 0.4s,backdrop-filter 0.4s,border-color 0.4s;border-bottom:1px solid transparent}
nav.scrolled{background:rgba(8,8,8,0.85);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom-color:var(--border)}
.nav-logo{display:flex;align-items:center}
.nav-links{display:flex;align-items:center;gap:36px;list-style:none}
.nav-links>li>a{font-size:0.875rem;font-weight:500;color:var(--grey);transition:color 0.2s;text-decoration:none}
.nav-links>li>a:hover,.nav-links>li>a.active{color:var(--white)}

/* ── DROPDOWN ── */
.nav-dropdown{position:relative}
.nav-dropdown>a{display:inline-flex;align-items:center;gap:5px}
.nav-caret{display:inline-block;width:0;height:0;border-left:3.5px solid transparent;border-right:3.5px solid transparent;border-top:4.5px solid currentColor;opacity:0.5;transition:transform 0.25s cubic-bezier(0.16,1,0.3,1),opacity 0.2s}
.nav-dropdown:hover .nav-caret{transform:rotate(180deg);opacity:1}
.dropdown-panel{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(0);background:rgba(12,12,12,0.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:14px;padding:6px;min-width:230px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity 0.22s,visibility 0.22s,transform 0.22s cubic-bezier(0.16,1,0.3,1);z-index:200}
.dropdown-panel::before{content:"";position:absolute;top:-20px;left:0;right:0;height:20px}
.nav-dropdown:hover .dropdown-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.dropdown-panel a{display:flex;align-items:center;gap:10px;padding:10px 14px;font-size:0.83rem;font-weight:500;color:var(--grey);border-radius:9px;transition:color 0.15s,background 0.15s;white-space:nowrap;text-decoration:none}
.dropdown-panel a:hover,.dropdown-panel a.active-sub{color:var(--white);background:rgba(255,255,255,0.06)}
.dp-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:0;flex-shrink:0;transition:opacity 0.15s}
.dropdown-panel a:hover .dp-dot,.dropdown-panel a.active-sub .dp-dot{opacity:1}

/* ── BUTTONS ── */
.btn-nav{background:var(--accent);color:#080808;font-size:0.85rem;font-weight:700;padding:10px 22px;border-radius:100px;transition:opacity 0.2s,transform 0.2s,box-shadow 0.2s;text-decoration:none;white-space:nowrap}
.btn-nav:hover{opacity:0.88;transform:translateY(-1px);box-shadow:0 6px 24px var(--accent-glow)}

/* ── THEME TOGGLE ── */
.theme-toggle{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:transparent;color:var(--grey);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color 0.2s,color 0.2s,background 0.2s;flex-shrink:0}
.theme-toggle:hover{border-color:rgba(56,182,255,0.35);color:var(--accent);background:var(--accent-dim)}
.icon-moon{display:block}
.icon-sun{display:none}
[data-theme="light"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:block!important}

/* ── HAMBURGER ── */
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:6px 4px;flex-shrink:0}
.hamburger span{display:block;width:22px;height:2px;background:var(--white);border-radius:2px;transition:transform 0.3s cubic-bezier(0.16,1,0.3,1),opacity 0.25s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── MOBILE NAV ── */
.mobile-nav{position:fixed;top:68px;left:0;right:0;background:rgba(10,10,10,0.97);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:20px 24px 28px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:transform 0.3s cubic-bezier(0.16,1,0.3,1),opacity 0.25s;z-index:99;display:flex;flex-direction:column;gap:0}
.mobile-nav.open{transform:none;opacity:1;pointer-events:auto}
.mobile-nav-links{list-style:none;display:flex;flex-direction:column;margin-bottom:20px}
.mobile-nav-links li a{display:block;padding:14px 0;font-size:1rem;font-weight:600;color:var(--white);border-bottom:1px solid var(--border);transition:color 0.2s;text-decoration:none}
.mobile-nav-links li:last-child a{border-bottom:none}
.mobile-nav-links li a:hover{color:var(--accent)}
.mobile-sub-toggle{display:flex;align-items:center;justify-content:space-between;padding:14px 0;font-size:1rem;font-weight:600;color:var(--white);border-bottom:1px solid var(--border);width:100%;background:none;border-top:none;border-left:none;border-right:none;cursor:pointer;font-family:inherit}
.mobile-sub-toggle svg{transition:transform 0.25s}
.mobile-sub-toggle.open svg{transform:rotate(180deg)}
.mobile-sub-links{list-style:none;overflow:hidden;max-height:0;transition:max-height 0.35s cubic-bezier(0.16,1,0.3,1)}
.mobile-sub-links.open{max-height:400px}
.mobile-sub-links li a{display:block;padding:10px 14px!important;font-size:0.9rem!important;font-weight:400!important;color:var(--grey)!important;border-bottom:1px solid var(--border);transition:color 0.2s;text-decoration:none}
.mobile-sub-links li:last-child a{border-bottom:none}
.mobile-sub-links li a:hover{color:var(--accent)!important}
.mobile-nav-cta{display:flex;align-items:center;justify-content:center;gap:10px;background:var(--accent);color:#080808;font-weight:700;font-size:0.9rem;padding:14px 28px;border-radius:100px;transition:opacity 0.2s;text-decoration:none}
.mobile-nav-cta:hover{opacity:0.88}
.mobile-nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.45);z-index:98;opacity:0;pointer-events:none;transition:opacity 0.3s}
.mobile-nav-overlay.open{opacity:1;pointer-events:auto}

/* ── LOGO DARK/LIGHT ── */
.logo-dark{display:block}
.logo-light{display:none}
[data-theme="light"] .logo-dark{display:none!important}
[data-theme="light"] .logo-light{display:block!important}

/* ── NAV LIGHT MODE ── */
[data-theme="light"] nav.scrolled{background:rgba(245,245,247,0.92)}
[data-theme="light"] .btn-nav{color:#ffffff}
[data-theme="light"] .mobile-nav{background:rgba(245,245,247,0.97)}
[data-theme="light"] .hamburger span{background:#0a0a0a}
[data-theme="light"] .dropdown-panel{background:rgba(248,248,250,0.97)!important;border-color:rgba(0,0,0,0.08)}
[data-theme="light"] .dropdown-panel a{color:#606060}
[data-theme="light"] .dropdown-panel a:hover,[data-theme="light"] .dropdown-panel a.active-sub{background:rgba(0,0,0,0.05);color:#0a0a0a}

/* ── NAV RESPONSIVE ── */
@media(max-width:1024px){nav{padding:18px 32px}}
@media(max-width:768px){.hamburger{display:flex}.btn-nav{display:none}.nav-links{display:none}}

/* =====================================================
   FOOTER
   ===================================================== */
footer{border-top:1px solid var(--border);padding:80px 0 40px;position:relative;z-index:1}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:60px;margin-bottom:64px}
.footer-tagline{font-size:0.875rem;color:var(--grey);line-height:1.65;max-width:270px;margin:14px 0 28px}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact-btn{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:100px;padding:10px 18px;font-size:0.85rem;font-weight:600;color:var(--white);transition:border-color 0.2s,color 0.2s;text-decoration:none}
.footer-contact-btn:hover{border-color:rgba(56,182,255,0.5);color:var(--accent)}
.footer-contact-btn svg{flex-shrink:0}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social-btn{width:34px;height:34px;border-radius:50%;background:var(--card);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--grey);transition:border-color 0.2s,color 0.2s;flex-shrink:0;text-decoration:none}
.footer-social-btn:hover{border-color:rgba(56,182,255,0.5);color:var(--accent)}
.footer-col h4{font-size:0.7rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:rgba(255,255,255,0.28);margin-bottom:18px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:0.875rem;color:var(--grey);transition:color 0.2s;text-decoration:none}
.footer-col a:hover{color:var(--white)}
.footer-creds{padding:28px 0;border-top:1px solid var(--border);margin-bottom:28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.footer-creds-label{font-size:0.68rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:rgba(255,255,255,0.28);white-space:nowrap;margin-right:8px}
.footer-creds-logos{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.footer-cred-logo-wrap{display:flex;align-items:center;justify-content:center;transition:opacity 0.2s}
.footer-cred-logo-wrap:hover{opacity:0.75}
.footer-cred-logo{height:56px;width:auto;display:block}
.footer-cred-logo.cred-light{display:none}
.footer-cred-logo.cred-dark{display:block}
.footer-bottom{padding-top:28px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.footer-copy{font-size:0.78rem;color:rgba(255,255,255,0.22)}
.footer-legal{display:flex;gap:24px}
.footer-legal a{font-size:0.78rem;color:rgba(255,255,255,0.22);transition:color 0.2s;text-decoration:none}
.footer-legal a:hover{color:rgba(255,255,255,0.5)}

/* ── FOOTER LIGHT MODE ── */
[data-theme="light"] .footer-col h4{color:rgba(0,0,0,0.35)}
[data-theme="light"] .footer-copy,[data-theme="light"] .footer-legal a{color:rgba(0,0,0,0.35)}
[data-theme="light"] .footer-creds-label{color:rgba(0,0,0,0.35)}
[data-theme="light"] .footer-cred-logo.cred-dark{display:none}
[data-theme="light"] .footer-cred-logo.cred-light{display:block}

/* ── FOOTER RESPONSIVE ── */
@media(max-width:900px){.footer-top{grid-template-columns:1fr 1fr;gap:40px}}
@media(max-width:640px){.footer-top{grid-template-columns:1fr;gap:36px}.footer-bottom{flex-direction:column;gap:16px;text-align:center}.footer-legal{flex-wrap:wrap;justify-content:center}.footer-creds{flex-direction:column;align-items:flex-start;gap:14px}.footer-creds-label{margin-right:0}.footer-creds-logos{flex-direction:column;align-items:flex-start;gap:20px}.footer-cred-logo{height:72px}}