/* =========================================================
   Sign in — centered card: auth (left) + benefits (right)
   ========================================================= */
.si { position: relative; min-height: 100vh; display: grid; place-items: center; padding: clamp(1.5rem,5vw,3.5rem) 1.25rem; background: #fff; overflow: hidden; }
.si::before { content: ""; position: absolute; inset: 0; background: url("../../images/bg-2.svg") center/cover no-repeat; opacity: 1; pointer-events: none; }

.si__wrap { position: relative; z-index: 1; width: min(940px, 100%); }
.si__brandlogo { display: block; width: max-content; margin: 0 auto 1.6rem; }
.si__brandlogo img { height: 60px; width: auto; display: block; }

.si__card { display: grid; grid-template-columns: 1fr 1fr; background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-lg); overflow: hidden; }

/* ---- Left: auth ---- */
.si__auth { padding: clamp(1.8rem,3.5vw,2.8rem); display: flex; flex-direction: column; justify-content: center; }
.si__title { font-family: var(--font-head); font-weight: 500; letter-spacing: -.02em; font-size: clamp(1.5rem,3vw,1.9rem); }
.si__name b { color: var(--indigo); font-weight: 500; }
.si__sub { color: var(--ink-soft); margin: .55rem 0 1.5rem; line-height: 1.5; font-size: .95rem; }
.si__alert { background: #fdecec; border: 1px solid #f6cccc; color: #b3261e; border-radius: 12px; padding: .8rem 1rem; font-size: .9rem; margin-bottom: 1.1rem; }

.si__social { display: grid; gap: .7rem; }
.si__sbtn { display: flex; align-items: center; justify-content: center; gap: .7rem; border: 1.5px solid var(--line); border-radius: 12px; padding: .85rem 1rem; font-weight: 500; color: var(--ink); background: #fff; transition: .18s var(--ease); }
.si__sbtn:hover { border-color: #c7c9d6; background: #fafafe; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.si__or { display: flex; align-items: center; gap: 1rem; margin: 1.3rem 0; color: var(--muted); font-size: .82rem; }
.si__or::before, .si__or::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.si__field { display: block; }
.si__field span { display: block; font-size: .82rem; color: var(--ink-soft); margin-bottom: .4rem; }
.si__field input { width: 100%; border: 1.5px solid var(--line); border-radius: 12px; padding: .9rem 1rem; font: inherit; font-size: 1rem; outline: none; transition: border-color .2s var(--ease), box-shadow .2s var(--ease); }
.si__field input:focus { border-color: var(--indigo); box-shadow: 0 0 0 3px rgba(58,54,224,.12); }
.si__hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.si__err { color: #d6334b; font-size: .85rem; margin: .6rem 0 0; }
.si__submit { width: 100%; justify-content: center; margin-top: 1rem; padding: .95rem; font-size: 1.02rem; }
.si__fine { font-size: .78rem; color: var(--muted); text-align: center; margin-top: .9rem; line-height: 1.4; }

/* ---- Left: OTP step ---- */
.si__back { background: none; border: none; color: var(--ink-soft); cursor: pointer; font-size: .88rem; padding: 0; margin-bottom: 1rem; align-self: flex-start; }
.si__back:hover { color: var(--indigo); }
.si__otp-badge { display: inline-flex; align-items: center; gap: .5rem; color: var(--indigo); font-size: .74rem; text-transform: uppercase; letter-spacing: .12em; }
.si-otp__boxes { display: flex; gap: .5rem; margin: 1.4rem 0 .4rem; }
.si-otp__box { width: 100%; aspect-ratio: 5/6; max-width: 54px; text-align: center; font-size: 1.45rem; font-weight: 500; border: 1.5px solid var(--line); border-radius: 12px; outline: none; color: var(--ink); transition: border-color .15s var(--ease), box-shadow .15s var(--ease); }
.si-otp__box:focus { border-color: var(--indigo); box-shadow: 0 0 0 4px rgba(58,54,224,.14); }
.si__otpfoot { text-align: center; margin-top: 1rem; }
.si__link { background: none; border: none; cursor: pointer; color: var(--indigo); font-size: .9rem; font-family: inherit; }
.si__link:disabled { color: var(--muted); cursor: default; }
.si__dev { margin-top: 1rem; font-size: .8rem; color: var(--muted); background: #f3f3f8; border-radius: 8px; padding: .5rem; text-align: center; }

/* ---- Right: benefits ---- */
.si__benefits { background: #f7f7f4; border-left: 1px solid var(--line); padding: clamp(1.8rem,3.5vw,2.8rem); display: flex; flex-direction: column; }
.si__bevb { font-size: .72rem; text-transform: uppercase; letter-spacing: .14em; color: var(--indigo); font-weight: 500; }
.si__behead { font-family: var(--font-head); font-weight: 500; letter-spacing: -.02em; font-size: clamp(1.3rem,2.4vw,1.65rem); line-height: 1.18; margin: .7rem 0 1.4rem; color: var(--ink); }
.si__belist { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; }
.si__belist li { position: relative; padding-left: 1.9rem; color: var(--ink-soft); line-height: 1.45; font-size: .95rem; }
.si__belist li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 50%; background: var(--indigo); color: #fff; display: grid; place-items: center; font-size: .7rem; }
.si__belink { margin-top: auto; padding-top: 1.5rem; color: var(--indigo); font-weight: 500; font-size: .92rem; }
.si__belink:hover { text-decoration: underline; }

.si__foot { text-align: center; color: var(--muted); font-size: .85rem; margin-top: 1.4rem; }

/* ---- Responsive ---- */
@media (max-width: 820px) {
  .si__card { grid-template-columns: 1fr; }
  .si__benefits { border-left: none; border-top: 1px solid var(--line); }
}
@media (max-width: 520px) {
  .si-otp__box { max-width: none; }
}