:root { color-scheme: dark; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; }
button, input { font: inherit; }
.page-shell { position: relative; isolation: isolate; min-height: 100svh; overflow: hidden; color: #f7f8fc; background: #090f22; }
.page-grid { position: absolute; inset: 0; z-index: -1; opacity: .42; background-image: linear-gradient(#6e81b016 1px, transparent 1px),linear-gradient(90deg,#6e81b016 1px,transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, transparent, black 42%, black); }
.ambient { position: absolute; z-index: -1; pointer-events: none; filter: blur(80px); border-radius: 50%; }
.ambient-one { width: 36rem; height: 36rem; right: -13rem; top: 5%; background: #17348965; }
.ambient-two { width: 24rem; height: 24rem; left: -13rem; bottom: -12rem; background: #2b407d3a; }
.site-frame { width: min(100% - 6rem, 1440px); min-height: 100svh; margin: auto; display: flex; flex-direction: column; }
.topbar { height: 106px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #f1f3ff21; }
.brand { display: inline-flex; align-items: center; gap: 13px; font-size: .82rem; font-weight: 800; letter-spacing: .16em; white-space: nowrap; }
.brand-mark { width: 27px; height: 27px; border: 2px solid #6ba5ff; display: grid; place-items: center; transform: rotate(-15deg); border-radius: 7px; }
.brand-mark span { width: 7px; height: 7px; background: #ffb566; border-radius: 2px; }
.topbar-note { color: #8b98b7; font-size: .72rem; letter-spacing: .22em; font-weight: 700; }
.hero { flex: 1; display: grid; grid-template-columns: minmax(380px,.9fr) minmax(0,1.1fr); align-items: center; gap: clamp(2rem,5vw,7rem); padding: 70px 0 80px; }
.copy { max-width: 700px; position: relative; z-index: 1; grid-column: 2; grid-row: 1; }
.eyebrow { display: flex; align-items: center; gap: 16px; color: #91baff; font-size: .8rem; font-weight: 800; letter-spacing: .27em; margin: 0 0 32px; }
.eyebrow-line { width: 42px; height: 2px; background: #91baff; }
h1 { font-size: clamp(3.5rem, 6.3vw, 6.8rem); line-height: 1.05; letter-spacing: -.065em; margin: 0; font-weight: 800; text-wrap: balance; }
h1 em { font-style: normal; color: #ffb566; }
.intro { color: #a9b4ce; font-size: clamp(1rem,1.3vw,1.15rem); line-height: 1.7; max-width: 550px; margin: 32px 0 46px; }
.signup { max-width: 620px; }
.signup label { display: block; font-size: .87rem; font-weight: 700; margin-bottom: 12px; }
.form-row { display: flex; gap: 10px; padding: 7px; background: #ffffff0c; border: 1px solid #7587ad55; border-radius: 14px; transition: border-color .2s, box-shadow .2s; }
.form-row:focus-within { border-color: #86aaff; box-shadow: 0 0 0 3px #6794ef33; }
.form-row input { min-width: 0; flex: 1; background: transparent; border: 0; color: #fff; padding: 15px 17px; outline: 0; font-size: 1rem; }
.form-row input::placeholder { color: #7e8aa7; }
.form-row button { border: 0; border-radius: 9px; background: #6c9eff; color: #07132e; padding: 0 25px; min-height: 54px; font-weight: 800; cursor: pointer; white-space: nowrap; transition: background .2s, transform .2s; }
.form-row button:hover:not(:disabled) { background: #94b8ff; transform: translateY(-1px); }
.form-row button:disabled { opacity: .7; cursor: wait; }
.form-row button.button-success { background: #42c883; color: #062416; cursor: default; }
.form-row button.button-success:hover { background: #5cdda0; transform: translateY(-1px); }
.form-message { min-height: 1.6em; color: #8997b4; font-size: .87rem; line-height: 1.5; margin: 13px 0 0; }
.form-message.success { color: #a3e9c2; }
.form-message.error, .form-message.duplicate { color: #ffb0a9; }
.visual { position: relative; grid-column: 1; grid-row: 1; width: 100%; aspect-ratio: 4 / 5; max-height: 650px; overflow: hidden; border: 1px solid #90a8e04a; border-radius: 24px; background: #0b1731; box-shadow: 0 40px 100px #03071890; }
.visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg,#07132870 0%,transparent 24%,transparent 72%,#061229a8 100%); pointer-events: none; }
.visual-image { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.visual-caption,.visual-bottom { position: absolute; left: 35px; right: 35px; display: flex; justify-content: space-between; align-items: center; color: #e5ecfc; font-size: .68rem; font-weight: 700; letter-spacing: .16em; z-index: 2; text-shadow: 0 2px 10px #06142d; }
.visual-caption { top: 32px; }
.visual-bottom { bottom: 32px; }
.short-rule { width: 48px; height: 1px; background: #d6e4ff; }
.footer { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid #f1f3ff21; padding: 23px 0 28px; color: #7889ad; font-size: .8rem; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
@media (max-width: 1000px) { .site-frame { width: min(100% - 3rem, 760px); } .hero { grid-template-columns: 1fr; gap: 58px; padding: 70px 0; } .copy, .visual { grid-column: 1; grid-row: auto; } .visual { max-width: 620px; margin: auto; } h1 { font-size: clamp(3.5rem,9vw,6rem); } }
@media (max-width: 600px) { .site-frame { width: min(100% - 2.5rem, 500px); } .topbar { height: 78px; } .topbar-note { display: none; } .hero { padding: 66px 0 54px; gap: 54px; } .eyebrow { margin-bottom: 25px; } h1 { font-size: clamp(3.2rem,14vw,4.8rem); } .intro { margin: 24px 0 34px; } .form-row { display: block; padding: 6px; } .form-row input { display: block; width: 100%; min-height: 55px; } .form-row button { width: 100%; } .visual { border-radius: 18px; } .visual-caption,.visual-bottom { left: 22px; right: 22px; font-size: .56rem; } .visual-caption { top: 23px; } .visual-bottom { bottom: 23px; } .footer { padding-bottom: 24px; } }