/* DELTA-SIERRA MARS — Vitrine V18 — 2026-08-13 */
:root{--dsm-night:#050b12;--dsm-panel:#091522;--dsm-panel2:#0c2032;--dsm-gold:#f1bb4e;--dsm-red:#c93530;--dsm-text:#f5f8fb;--dsm-line:#29465e}
.mars-header{position:relative!important;min-height:124px!important;background:linear-gradient(180deg,#030a11,#071421)!important;border-bottom:1px solid #253d52!important}
.mars-header__inner{position:relative!important;min-height:124px!important;padding-left:350px!important;padding-top:14px!important;padding-bottom:14px!important;display:flex!important;align-items:center!important;gap:10px!important;flex-wrap:wrap!important}
.ds-mars-home-brand{position:absolute!important;left:18px!important;top:10px!important;width:308px!important;height:104px!important;display:flex!important;align-items:center!important;gap:13px!important;padding:5px 12px!important;color:#fff!important;text-decoration:none!important;z-index:10!important}
.ds-mars-home-brand:before{content:"";width:94px;height:94px;flex:0 0 94px;background:url('/mars-assets/img/brand/delta-sierra-mars-official.png') center/contain no-repeat;filter:drop-shadow(0 8px 16px rgba(0,0,0,.42))}.ds-mars-home-brand__copy{display:flex;flex-direction:column;line-height:1}.ds-mars-home-brand__copy small{color:#f7f8fa;font-size:.83rem;letter-spacing:.19em;font-weight:800}.ds-mars-home-brand__copy strong{margin-top:6px;color:#e95c3e;font-size:2.15rem;letter-spacing:.08em}.ds-mars-home-brand__copy em{margin-top:7px;color:#f1d6a5;font-size:.61rem;font-style:normal;letter-spacing:.08em;font-weight:700}
.mars-header .site-nav{flex:1 1 650px!important}.mars-header .site-nav__inner{background:rgba(7,20,34,.8)!important;border:1px solid #1f354a!important;border-radius:11px!important;padding:6px!important}.mars-header .site-nav a{border-radius:8px!important}.mars-header .site-nav a:hover,.mars-header .site-nav a:focus-visible{background:#193957!important;color:#fff!important;outline:2px solid #f1bb4e!important;outline-offset:0!important}.mars-header .mars-nav-link{background:#112b44!important;border:1px solid #c99634!important;color:#fff!important}.mars-header .btn-soutien{background:#ba2f2a!important;border-radius:8px!important;box-shadow:0 8px 20px rgba(137,26,23,.2)!important}.mars-header .btn-soutien:hover{background:#d4433c!important}
/* left column is navigation, not editorial content */
.mars-system-sidebar .ds-essential-answer{display:none!important}.mars-system-sidebar:before{display:none!important}.mars-system-sidebar{background:linear-gradient(180deg,#07131f,#091a29)!important;border-right:1px solid #29465e!important;box-shadow:12px 0 30px rgba(0,0,0,.12)!important}.mars-sidebar-title{color:#f4f7fa!important;letter-spacing:.05em!important}.mars-system-sidebar a,.mars-system-sidebar a:visited{color:#d9e9f6!important}.mars-system-sidebar a:hover,.mars-system-sidebar a:focus-visible{color:#fff!important;background:#183b59!important;outline:2px solid #f1bb4e!important;outline-offset:0!important}.mars-system-sidebar .is-active,.mars-system-sidebar [aria-current=page]{color:#fff!important;background:linear-gradient(90deg,#193e5e,#10283d)!important;border-left:4px solid #efb647!important}
/* immersive hero */
.mars-hero{position:relative!important;isolation:isolate!important;min-height:590px!important;overflow:hidden!important;border-bottom:2px solid #c99532!important;background-image:linear-gradient(90deg,rgba(3,9,15,.88) 0%,rgba(3,10,17,.72) 36%,rgba(4,11,18,.27) 65%,rgba(4,9,14,.09) 100%),url('/mars-assets/img/brand/mars-hero-colony-landscape-v18.jpg')!important;background-size:cover!important;background-position:center 38%!important}
.mars-hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(circle at 15% 5%,rgba(255,205,107,.10),transparent 26%),linear-gradient(180deg,rgba(2,7,12,.18),rgba(3,8,12,.05) 55%,rgba(2,7,12,.2));pointer-events:none}.mars-hero__grid{position:relative!important;z-index:2!important;min-height:590px!important;display:flex!important;align-items:center!important;background:transparent!important}.mars-hero__grid>div{max-width:780px!important;padding:54px 0!important}.mars-hero__grid>figure{display:none!important}.mars-hero h1{max-width:760px!important;margin:.2em 0 .25em!important;color:#fff!important;font-size:clamp(3rem,5.7vw,5.6rem)!important;line-height:.94!important;letter-spacing:-.035em!important;text-shadow:0 4px 24px rgba(0,0,0,.8)!important}.mars-hero .mars-kicker{color:#ffd165!important;font-weight:900!important;letter-spacing:.12em!important;text-shadow:0 2px 10px rgba(0,0,0,.7)!important}.mars-hero .mars-lead{max-width:760px!important;color:#f1f5f8!important;font-size:clamp(1rem,1.4vw,1.22rem)!important;line-height:1.65!important;text-shadow:0 2px 14px rgba(0,0,0,.78)!important}.mars-hero__actions{display:flex!important;gap:11px!important;flex-wrap:wrap!important;margin-top:22px!important}.mars-hero__actions a,.mars-hero__actions a:visited{padding:12px 17px!important;border-radius:9px!important;background:#bd322c!important;border:1px solid #db5048!important;color:#fff!important;font-weight:850!important;text-decoration:none!important;box-shadow:0 10px 22px rgba(0,0,0,.22)!important}.mars-hero__actions a:nth-child(2){background:#0d2235!important;border-color:#46637a!important}.mars-hero__actions a:hover,.mars-hero__actions a:focus-visible{outline:3px solid #ffd36e!important;outline-offset:2px!important;transform:translateY(-1px)}
/* Content panels */
.mars-portal-frame{background:#07131e!important}.mars-portal-frame>article,.mars-content,.mars-main-content{background:#f9fbfd!important}.mars-bible-alert{border-radius:12px!important}.mars-system-sidebar .mars-academy-card{border:1px solid #355572!important;border-radius:14px!important;background:linear-gradient(145deg,#102c46,#0a1d2e)!important;box-shadow:0 12px 26px rgba(0,0,0,.2)!important}.mars-system-sidebar .mars-academy-card a{background:#f1c159!important;color:#0b2032!important;font-weight:900!important;border-radius:8px!important}
.ds-lot16-media{margin:28px auto!important;max-width:1100px!important;border-radius:16px!important;overflow:hidden!important;background:#071420!important;border:1px solid #28445d!important;box-shadow:0 18px 42px rgba(0,0,0,.22)!important}.ds-lot16-media img{display:block!important;width:100%!important;height:auto!important;cursor:zoom-in!important}.ds-lot16-media figcaption{padding:11px 14px!important;color:#d7e7f4!important;font-size:.9rem!important;line-height:1.45!important}
@media(max-width:1100px){.mars-header__inner{padding-left:290px!important}.ds-mars-home-brand{width:260px!important}.ds-mars-home-brand:before{width:76px;height:76px;flex-basis:76px}.ds-mars-home-brand__copy strong{font-size:1.7rem}.mars-hero{min-height:540px!important}.mars-hero__grid{min-height:540px!important}}
@media(max-width:760px){.mars-header{min-height:auto!important}.mars-header__inner{padding:10px 12px!important;display:block!important}.ds-mars-home-brand{position:relative!important;left:auto!important;top:auto!important;width:100%!important;height:auto!important;padding:4px 0 10px!important}.ds-mars-home-brand:before{width:68px;height:68px;flex-basis:68px}.mars-header .site-nav{margin-top:8px!important}.mars-hero{min-height:520px!important;background-position:63% center!important}.mars-hero__grid{min-height:520px!important}.mars-hero__grid>div{padding:42px 0!important}.mars-hero h1{font-size:clamp(2.4rem,11vw,4rem)!important}.mars-hero .mars-lead{font-size:1rem!important}}

/* Generic EN/history header: the same Mars identity must survive older templates. */
.ds-mars-branded-header{background:linear-gradient(180deg,#030a11,#071421)!important;border-bottom:1px solid #253d52!important;color:#fff!important}
.ds-mars-branded-header .site-header__inner{position:relative!important;min-height:116px!important;padding:12px 18px 12px 340px!important;display:flex!important;align-items:center!important;justify-content:flex-end!important;gap:12px!important}
.ds-mars-branded-header .site-header__brand{display:none!important}
.ds-mars-branded-header .ds-mars-home-brand{display:flex!important}
@media(max-width:760px){.ds-mars-branded-header .site-header__inner{padding:10px 12px!important;display:block!important}.ds-mars-branded-header .ds-mars-home-brand{position:relative!important;left:auto!important;top:auto!important;width:100%!important;height:auto!important}}