/*
 * navbar.css — Dashmier Technologies Navigation
 * Sticky header · Mega menu · Dropdowns · Mobile panel
 */

/* ─── Main Nav ───────────────────────────────────────────────────── */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    background: transparent;
    transition: background var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
    border-bottom: 1px solid transparent;
}

.site-nav.is-scrolled,
.site-nav.is-solid {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-nav);
    border-color: var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    gap: 4px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Logo ───────────────────────────────────────────────────────── */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-right: 14px;
    flex-shrink: 0;
    text-decoration: none;
}

.nav-logo__icon {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
}

.nav-logo__text {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-head);
    letter-spacing: -0.04em;
    line-height: 1;
}

/* ─── Nav Links ──────────────────────────────────────────────────── */
.nav-links {
    display: flex;
    align-items: center;
    gap: 1px;
    flex: 1;
}

.nav-item { position: relative; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 7px 11px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-body);
    border-radius: var(--r-md);
    transition: color var(--t-fast), background var(--t-fast);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1;
    letter-spacing: -0.005em;
}

.nav-link:hover,
.nav-link.active {
    color: var(--blue);
    background: var(--blue-light);
}

.nav-link__chevron {
    font-size: 0.6rem;
    transition: transform var(--t-fast);
    opacity: 0.55;
}

.nav-item:hover .nav-link__chevron,
.nav-item:focus-within .nav-link__chevron {
    transform: rotate(180deg);
}

/* Quantum Lab link */
.nav-link--ql {
    color: var(--ql-purple);
    font-weight: 600;
}

.nav-link--ql:hover,
.nav-link--ql.active {
    color: var(--ql-purple);
    background: rgba(124, 58, 237, 0.07);
}

/* ─── CTA Area ───────────────────────────────────────────────────── */
.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
}

/* ─── Services Mega Menu ─────────────────────────────────────────── */
.mega-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    width: 600px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-xl);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--t-base), transform var(--t-base), visibility var(--t-base);
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.mega-menu__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.mega-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--r-md);
    transition: background var(--t-fast);
    text-decoration: none;
    color: inherit;
}

.mega-item:hover { background: var(--off-white); }

.mega-item__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--r-sm);
    background: var(--blue-light);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9375rem;
    flex-shrink: 0;
    transition: background var(--t-fast), color var(--t-fast);
}

.mega-item:hover .mega-item__icon {
    background: var(--blue);
    color: var(--white);
}

.mega-item__title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-head);
    margin-bottom: 2px;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.mega-item__desc {
    font-size: 0.775rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* ─── Simple Dropdowns ───────────────────────────────────────────── */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    min-width: 215px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity var(--t-base), transform var(--t-base), visibility var(--t-base);
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 12px;
    border-radius: var(--r-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-body);
    text-decoration: none;
    transition: background var(--t-fast), color var(--t-fast);
    white-space: nowrap;
}

.dropdown-item:hover {
    background: var(--off-white);
    color: var(--blue);
}

.dropdown-item i {
    font-size: 0.875rem;
    color: var(--text-faint);
    width: 16px;
    text-align: center;
}

.dropdown-item:hover i { color: var(--blue); }

/* ─── Mobile Hamburger ───────────────────────────────────────────── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: 1.5px solid var(--border);
    border-radius: var(--r-md);
    padding: 0 9px;
    margin-left: auto;
    flex-shrink: 0;
    transition: border-color var(--t-fast);
}

.nav-hamburger:hover { border-color: var(--blue); }

.nav-hamburger span {
    display: block;
    height: 1.5px;
    background: var(--text-body);
    border-radius: 2px;
    transition: transform var(--t-base), opacity var(--t-base), width var(--t-base);
    transform-origin: center;
}

.nav-hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── Mobile Nav Panel ───────────────────────────────────────────── */
.mobile-nav {
    position: fixed;
    inset: 0;
    z-index: 850;
    background: var(--white);
    overflow-y: auto;
    padding: calc(var(--nav-h) + 24px) 24px 40px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(8px);
    transition: opacity var(--t-slow), visibility var(--t-slow), transform var(--t-slow);
}

.mobile-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    font-family: var(--font-head);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-head);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    transition: color var(--t-fast);
    letter-spacing: -0.025em;
}

.mobile-nav__link:hover { color: var(--blue); }

.mobile-nav__link--ql { color: var(--ql-purple); }

.mobile-nav__sub {
    padding: 10px 0 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-nav__sub-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: var(--r-md);
    text-decoration: none;
    transition: background var(--t-fast), color var(--t-fast);
}

.mobile-nav__sub-link:hover {
    background: var(--off-white);
    color: var(--blue);
}

.mobile-nav__cta {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ─── Footer ─────────────────────────────────────────────────────── */
.site-footer {
    background: var(--text-head);
    padding-top: 80px;
    padding-bottom: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 270px repeat(4, 1fr);
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand__logo {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 16px;
    text-decoration: none;
}

.footer-brand__name {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.03em;
}

.footer-brand__tagline {
    font-size: 0.875rem;
    color: #94A3B8;
    line-height: 1.7;
    margin-bottom: 22px;
}

.footer-brand__info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 22px;
}

.footer-brand__info-item {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    font-size: 0.8125rem;
    color: #94A3B8;
}

.footer-brand__info-item i {
    color: #64748B;
    flex-shrink: 0;
    margin-top: 2px;
    font-size: 0.875rem;
}

.footer-socials {
    display: flex;
    gap: 8px;
}

.footer-social {
    width: 36px;
    height: 36px;
    border-radius: var(--r-md);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    color: #94A3B8;
    text-decoration: none;
    transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.footer-social:hover {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
}

.footer-col__title {
    font-family: var(--font-mono);
    font-size: 0.675rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 18px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-link {
    font-size: 0.875rem;
    color: #94A3B8;
    text-decoration: none;
    transition: color var(--t-fast);
    line-height: 1.4;
}

.footer-link:hover { color: #fff; }

.footer-newsletter { margin-top: 22px; }

.footer-newsletter__label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 10px;
}

.footer-newsletter__form {
    display: flex;
    gap: 6px;
}

.footer-newsletter__input {
    flex: 1;
    padding: 9px 13px;
    font-size: 0.875rem;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--r-md);
    color: #fff;
    outline: none;
    transition: border-color var(--t-fast), background var(--t-fast);
}

.footer-newsletter__input::placeholder { color: #64748B; }

.footer-newsletter__input:focus {
    border-color: var(--blue);
    background: rgba(255,255,255,0.09);
}

.footer-newsletter__btn {
    padding: 9px 15px;
    background: var(--blue);
    color: #fff;
    border: none;
    border-radius: var(--r-md);
    font-size: 0.875rem;
    font-weight: 600;
    transition: background var(--t-fast);
    flex-shrink: 0;
}

.footer-newsletter__btn:hover { background: var(--blue-dark); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 0;
}

.footer-bottom__copy {
    font-size: 0.8125rem;
    color: #64748B;
}

.footer-bottom__links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-bottom__link {
    font-size: 0.8125rem;
    color: #64748B;
    text-decoration: none;
    transition: color var(--t-fast);
}

.footer-bottom__link:hover { color: #fff; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .mega-menu { width: 520px; }
}

@media (max-width: 900px) {
    .nav-links, .nav-cta { display: none; }
    .nav-hamburger { display: flex; }
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 640px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand-col { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}