/* BRsys shared sticky header and branded choice dialog */
:root{--brsys-head-bg:rgba(7,9,9,.95)}
.site-header,.request-top,.partner-top,.top{position:sticky;top:0;z-index:80;background:var(--brsys-head-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.request-top,.partner-top{padding-top:14px!important;padding-bottom:14px!important}
.brsys-choice-native{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;pointer-events:none!important}
.brsys-choice-trigger{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;min-height:50px;text-align:left;padding:13px 15px;background:#080b0a;color:#f4f7f5;border:1px solid #34423a;border-radius:10px;font:inherit;font-size:16px;cursor:pointer}
.brsys-choice-trigger:focus-visible{outline:2px solid #b8ff35;outline-offset:3px}
.brsys-choice-trigger:after{content:'⌄';color:#b8ff35;font-size:24px;line-height:1}
.brsys-choice-dialog{border:1px solid #3c4b40;border-radius:22px;background:#101514;color:#f4f7f5;width:min(480px,calc(100% - 28px));max-height:min(76dvh,700px);padding:0;box-shadow:0 28px 90px rgba(0,0,0,.7);font-family:Inter,Arial,Helvetica,sans-serif}
.brsys-choice-dialog::backdrop{background:rgba(0,0,0,.78);backdrop-filter:blur(4px)}
.brsys-choice-head{position:sticky;top:0;z-index:2;background:#101514;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:19px 20px;border-bottom:1px solid #29362e}
.brsys-choice-head strong{font-size:17px}.brsys-choice-close{border:1px solid #3b4b40;border-radius:50%;background:transparent;color:white;width:34px;height:34px;font-size:22px;cursor:pointer}
.brsys-choice-list{padding:8px;overflow-y:auto;max-height:calc(min(76dvh,700px) - 75px)}
.brsys-choice-option{display:flex;justify-content:space-between;align-items:center;gap:14px;width:100%;padding:15px 14px;text-align:left;border:0;border-bottom:1px solid #28332d;background:transparent;color:#e9f1ec;font:inherit;font-size:15px;cursor:pointer;border-radius:7px}
.brsys-choice-option:hover,.brsys-choice-option:focus-visible{background:#1c2920;outline:none}
.brsys-choice-option[aria-selected="true"]{color:#b8ff35;background:#19251a}
.brsys-choice-option[aria-selected="true"]:after{content:'✓';font-weight:900}
@media(max-width:560px){.brsys-choice-dialog{width:calc(100% - 22px)}.brsys-choice-option{min-height:52px}}

/* Unified secondary-page navigation: same brand, proportions and sticky behavior */
.brsys-secondary-header{position:sticky!important;top:0!important;z-index:100!important;display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:68px;padding-top:12px!important;padding-bottom:12px!important;background:rgba(7,9,9,.97)!important;border-bottom:1px solid #27302d;backdrop-filter:blur(18px)}
.brsys-secondary-header .brand{flex-shrink:0;line-height:1}.brsys-secondary-header .brand img{display:block;width:112px;height:auto}
.brsys-secondary-nav{display:flex;align-items:center;gap:18px;font-family:Inter,Arial,Helvetica,sans-serif;font-size:13px;font-weight:650}
.brsys-secondary-nav a,.brsys-secondary-nav summary{color:#e6eeea;text-decoration:none;cursor:pointer;white-space:nowrap}
.brsys-secondary-nav a:hover,.brsys-secondary-nav summary:hover{color:#b8ff35}
.brsys-secondary-nav details{position:relative}.brsys-secondary-nav summary{list-style:none}.brsys-secondary-nav summary::-webkit-details-marker{display:none}
.brsys-secondary-nav summary:after{content:'⌄';color:#b8ff35;margin-left:5px}
.brsys-secondary-panel{position:absolute;right:0;top:calc(100% + 14px);width:210px;display:grid;gap:2px;padding:8px;border:1px solid #334139;border-radius:14px;background:#101615;box-shadow:0 18px 45px rgba(0,0,0,.55)}
.brsys-secondary-panel a{display:block;padding:10px 12px;border-radius:8px}.brsys-secondary-panel a:hover{background:#1b2920}
@media(max-width:560px){.brsys-secondary-header{min-height:62px;gap:8px}.brsys-secondary-header .brand img{width:100px}.brsys-secondary-nav{gap:11px;font-size:12px}.brsys-secondary-panel{right:-4px}.brsys-secondary-nav .brsys-nav-home{display:none}}