:root { font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #152b36; background: #f5f8f9; font-synthesis: none; line-height: 1.55; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100dvh; display: flex; flex-direction: column; }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: wait; opacity: .6; }
a { color: inherit; }
:focus-visible { outline: 3px solid #2479a8; outline-offset: 4px; }
.site-header { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px clamp(20px, 5vw, 76px); border-bottom: 1px solid #dae4e7; background: #fff; }
.brand { font-weight: 800; font-size: 30px; letter-spacing: -.07em; text-decoration: none; color: #153f4c; }
.brand span { font-weight: 450; font-size: 15px; letter-spacing: .04em; margin-left: 15px; padding-left: 15px; border-left: 1px solid #cbd9df; }
.account { display: flex; align-items: center; gap: 16px; min-width: 0; }
.account-email { font-size: 14px; overflow-wrap: anywhere; }
main { flex: 1; width: 100%; }
.welcome { max-width: 1180px; margin: 0 auto; padding: clamp(36px, 8vw, 110px) 28px 28px; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: clamp(36px, 6vw, 100px); }
.eyebrow { color: #346573; font-size: 12px; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 14px; }
h1, h2 { letter-spacing: -.035em; line-height: 1.15; }
.intro h1 { font-size: clamp(34px, 3.6vw, 49px); margin: 0 0 24px; font-weight: 650; }
.intro-copy { font-size: 18px; color: #536c77; max-width: 430px; }
.private-label { margin-top: 38px; font-size: 13px; color: #526d76; }
.private-label span { color: #388377; margin-right: 7px; }
.sign-in-card { padding: clamp(24px, 3.5vw, 40px); background: #fff; border: 1px solid #dbe5e9; border-radius: 16px; box-shadow: 0 14px 48px #1c485508; }
.sign-in-card h2 { font-size: 25px; margin: 0 0 16px; }
.sign-in-card > p { color: #536c77; }
form { margin-top: 24px; }
label { display: block; font-weight: 650; font-size: 14px; margin-bottom: 8px; }
input { width: 100%; min-height: 48px; padding: 10px 12px; color: #152b36; background: #fff; border: 1px solid #9bb1ba; border-radius: 7px; }
input::placeholder { color: #738894; }
.hint { color: #536c77; font-size: 13px; margin: 9px 0 18px; }
.button { min-height: 44px; padding: 10px 18px; border: 1px solid transparent; border-radius: 7px; font-size: 14px; font-weight: 650; line-height: 1.4; }
.button-primary { width: 100%; color: #fff; background: #176575; }
.button-primary:hover:not(:disabled) { background: #104e5b; }
.button-secondary { color: #214b59; background: #fff; border-color: #bcced5; white-space: nowrap; }
.button-secondary:hover:not(:disabled) { background: #edf4f6; }
.text-button { padding: 8px 0; margin-top: 12px; border: 0; background: none; color: #176575; text-decoration: underline; text-underline-offset: 3px; font-size: 14px; }
.card-footnote { border-top: 1px solid #e3ebee; padding-top: 20px; margin: 24px 0 0; }
.feedback { max-width: 1124px; padding: 0 28px; margin: 0 auto 28px; }
.feedback p { margin: 8px 0; font-size: 14px; }
.feedback .error { color: #8f2633; background: #fff2f2; padding: 16px; border: 1px solid #e7bfc4; border-radius: 8px; }
.reader-panel { padding: 26px clamp(12px, 3vw, 44px) 16px; }
.reader-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; }
.reader-heading .eyebrow { margin-bottom: 6px; }
.reader-heading h1 { font-size: 27px; margin: 0; }
.guide-container { min-height: 65dvh; background: #fff; border: 1px solid #dae4e7; border-radius: 10px; overflow: hidden; }
.guide-frame { display: block; width: 100%; height: max(74dvh, 560px); border: 0; background: #fff; }
.site-footer { display: flex; justify-content: space-between; gap: 16px; padding: 24px clamp(20px, 5vw, 76px); color: #617984; font-size: 12px; }
.noscript { padding: 20px; color: #8f2633; }
@media (max-width: 760px) { .site-header { min-height: 76px; padding: 16px 20px; flex-wrap: wrap; } .welcome { grid-template-columns: 1fr; max-width: 520px; padding: 36px 20px 24px; gap: 24px; } .intro h1 { font-size: 34px; } .intro-copy { font-size: 16px; } .private-label { margin-top: 20px; } .account { flex: 1 1 100%; justify-content: space-between; } .reader-heading { align-items: flex-start; } .reader-heading h1 { font-size: 23px; } .feedback { padding: 0 20px; } .site-footer { flex-direction: column; gap: 4px; } .guide-frame { height: 75dvh; } }