:root {
    --brand: #9F2233;
    --brand-deep: #5c1120;
    --brand-ink: #2b070e;
    --brand-soft: #f7dde2;
    --bubble-in-demo: #ffffff;
    --bubble-out-demo: #d9fdd3;
    --demo-ink: #1b2420;
    --form-bg: #ffffff;
    --form-ink: #1c1f24;
    --form-muted: #687079;
    --field-border: #d9dde3;
    --cycle: 14s;
}
[data-bs-theme=dark] {
    --form-bg: #14171b;
    --form-ink: #e8ebef;
    --form-muted: #9aa3ad;
    --field-border: #2c333b;
    --brand-soft: #3a1820;
}
body.auth-page { margin: 0; background: var(--form-bg); color: var(--form-ink); font-family: "Source Sans 3", "Segoe UI", system-ui, sans-serif; }

.login { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }


.login-brand {
    position: relative; overflow: hidden; color: #fff; display: flex; flex-direction: column; justify-content: space-between; gap: 2rem;
    padding: clamp(1.5rem, 4vw, 3rem);
    background: radial-gradient(120% 90% at 0% 0%, #b8293f 0%, var(--brand) 35%, var(--brand-deep) 75%, var(--brand-ink) 100%);
}
.login-glow { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .45; pointer-events: none; }
.login-glow.g1 { width: 340px; height: 340px; background: #ff6b81; top: -80px; right: -60px; animation: drift 18s ease-in-out infinite; }
.login-glow.g2 { width: 280px; height: 280px; background: #25d366; bottom: 10%; left: -90px; opacity: .22; animation: drift 22s ease-in-out infinite reverse; }
.login-glow.g3 { width: 220px; height: 220px; background: #ffb4c0; bottom: -60px; right: 20%; opacity: .3; animation: drift 26s ease-in-out infinite; }
@keyframes drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, 30px) scale(1.08); }
    66% { transform: translate(-30px, 20px) scale(.95); }
}
.login-logo { position: relative; display: flex; align-items: center; gap: .7rem; font-size: 1.15rem; letter-spacing: .12em; font-weight: 300; }
.login-logo img { width: 44px; height: 44px; filter: drop-shadow(0 4px 10px rgba(0, 0, 0, .25)); background: #fff; border-radius: 50%; padding: 3px; }
.login-logo strong { font-weight: 800; }


.login-demo {
    position: relative; width: min(420px, 100%); align-self: center; border-radius: 18px; overflow: hidden;
    background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22); backdrop-filter: blur(14px);
    box-shadow: 0 24px 60px rgba(20, 0, 6, .45); animation: float 7s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.demo-head { display: flex; align-items: center; gap: .65rem; padding: .75rem .9rem; background: rgba(0, 0, 0, .18); }
.demo-head strong { display: block; font-size: .95rem; }
.demo-head small { display: block; font-size: .75rem; opacity: .75; }
.demo-avatar { width: 36px; height: 36px; border-radius: 50%; background: #ffd5dc; color: var(--brand); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: .8rem; }
.demo-badge { margin-left: auto; font-size: .72rem; padding: .15rem .55rem; border-radius: 999px; background: rgba(37, 211, 102, .25); border: 1px solid rgba(37, 211, 102, .5); }
.demo-body { display: flex; flex-direction: column; gap: .45rem; padding: 1rem .9rem 1.1rem; min-height: 250px; }
.demo-msg { max-width: 82%; padding: .45rem .65rem .3rem; border-radius: 10px; font-size: .9rem; line-height: 1.35; color: var(--demo-ink); box-shadow: 0 1px 1px rgba(0, 0, 0, .12); }
.demo-msg time { display: block; text-align: right; font-size: .68rem; color: #667781; margin-top: .1rem; }
.demo-msg.in { align-self: flex-start; background: var(--bubble-in-demo); border-top-left-radius: 3px; }
.demo-msg.out { align-self: flex-end; background: var(--bubble-out-demo); border-top-right-radius: 3px; }
.demo-msg .tick { color: #8696a0; animation: tick var(--cycle) infinite; }
@keyframes tick { 0%, 44% { color: #8696a0; } 50%, 100% { color: #53bdeb; } }
.demo-ai { align-self: flex-end; max-width: 86%; font-size: .78rem; padding: .35rem .6rem; border-radius: 8px; color: #fff;
    background: rgba(255, 255, 255, .14); border: 1px dashed rgba(255, 255, 255, .5); }
.demo-typing { align-self: flex-start; display: inline-flex; gap: 4px; padding: .55rem .7rem; border-radius: 10px; background: var(--bubble-in-demo); }
.demo-typing span { width: 7px; height: 7px; border-radius: 50%; background: #8696a0; animation: dot 1.2s infinite; }
.demo-typing span:nth-child(2) { animation-delay: .15s; }
.demo-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes dot { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-4px); opacity: 1; } }


.demo-body > * { opacity: 0; transform: translateY(8px) scale(.98); animation: var(--cycle) infinite both; }
.m1 { animation-name: show1; }
.t1 { animation-name: typing; }
.m2 { animation-name: show2; }
.m3 { animation-name: show3; }
.m4 { animation-name: show4; }
@keyframes show1 { 0%, 4% { opacity: 0; transform: translateY(8px) scale(.98); } 8%, 90% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; transform: none; } }
@keyframes typing { 0%, 11% { opacity: 0; max-height: 0; padding-block: 0; } 14%, 24% { opacity: 1; max-height: 40px; padding-block: .55rem; transform: none; } 27%, 100% { opacity: 0; max-height: 0; padding-block: 0; } }
@keyframes show2 { 0%, 26% { opacity: 0; transform: translateY(8px) scale(.98); } 30%, 90% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; transform: none; } }
@keyframes show3 { 0%, 38% { opacity: 0; transform: translateY(8px) scale(.98); } 42%, 90% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; transform: none; } }
@keyframes show4 { 0%, 58% { opacity: 0; transform: translateY(8px) scale(.98); } 62%, 90% { opacity: 1; transform: none; } 96%, 100% { opacity: 0; transform: none; } }

.login-copy { position: relative; max-width: 30rem; }
.login-copy h2 { font-size: clamp(1.35rem, 2.2vw, 1.85rem); font-weight: 700; line-height: 1.25; text-wrap: balance; margin: 0 0 1rem; }
.login-copy ul { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 0; }
.login-copy li { display: inline-flex; align-items: center; gap: .4rem; font-size: .85rem; padding: .3rem .75rem; border-radius: 999px;
    background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); }


.login-form-side { display: flex; align-items: center; justify-content: center; padding: 2rem max(16px, env(safe-area-inset-right, 0px)) 2rem max(16px, env(safe-area-inset-left, 0px)); }
.login-form-wrap { width: min(380px, 100%); animation: rise .6s ease-out both; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.login-mark-sm { display: none; width: 52px; height: 52px; margin-bottom: 1rem; }
.login-form-wrap h1 { font-size: 1.75rem; font-weight: 700; margin: 0 0 .3rem; letter-spacing: -.01em; }
.login-sub { color: var(--form-muted); margin: 0 0 1.6rem; }
.login-field { position: relative; margin-bottom: .9rem; }
.login-field > .bi { position: absolute; left: .95rem; top: 50%; transform: translateY(-50%); color: var(--form-muted); z-index: 5; pointer-events: none; font-size: 1.05rem; }
.login-field .form-control { padding-left: 2.6rem; border-radius: 12px; border-color: var(--field-border); background: transparent; color: var(--form-ink); }
.login-field .form-floating > label { padding-left: 2.6rem; color: var(--form-muted); }
.login-field .form-control:focus { border-color: var(--brand); box-shadow: 0 0 0 .2rem rgba(159, 34, 51, .18); }
.login-field:focus-within > .bi { color: var(--brand); }
[data-bs-theme=dark] .login-field:focus-within > .bi { color: #ff8a9b; }
.login-eye { position: absolute; right: .4rem; top: 50%; transform: translateY(-50%); z-index: 5; border: 0; background: none;
    color: var(--form-muted); padding: .4rem .55rem; border-radius: 8px; }
.login-eye:hover { color: var(--form-ink); }
.login-eye:focus-visible { outline: 2px solid var(--brand); }
.login-submit { margin-top: .4rem; padding: .75rem 1rem; border-radius: 12px; border: 0; font-weight: 600; color: #fff;
    background: linear-gradient(135deg, #b8293f, var(--brand) 55%, var(--brand-deep)); box-shadow: 0 10px 24px rgba(159, 34, 51, .3);
    transition: transform .15s ease, box-shadow .15s ease, filter .15s ease; }
.login-submit:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 14px 28px rgba(159, 34, 51, .38); filter: brightness(1.05); }
.login-submit:focus-visible { outline: 3px solid rgba(159, 34, 51, .45); outline-offset: 2px; color: #fff; }
.login-submit:disabled { color: #fff; opacity: .85; }
.login-submit .busy { display: none; }
.login-submit.is-busy .label { display: none; }
.login-submit.is-busy .busy { display: inline-flex; align-items: center; }
.login-error { border-radius: 12px; animation: shake .45s ease-in-out; }
@keyframes shake { 0%, 100% { transform: none; } 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.login-foot { margin: 1.5rem 0 0; font-size: .8rem; color: var(--form-muted); text-align: center; }

.login-lang { position: fixed; top: max(12px, env(safe-area-inset-top, 0px)); right: max(16px, env(safe-area-inset-right, 0px)); z-index: 10;
    display: flex; align-items: center; gap: .4rem; color: var(--form-muted); }
.login-lang .form-select { width: auto; border-radius: 10px; }


@media (max-width: 991.98px) {
    .login { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
    .login-brand { padding: 1.1rem max(16px, env(safe-area-inset-right, 0px)) 1.1rem max(16px, env(safe-area-inset-left, 0px)); gap: 0; }
    .login-form-side { align-items: flex-start; padding-top: 2.2rem; }
}

@media (prefers-reduced-motion: reduce) {
    .login-glow, .login-demo, .login-form-wrap, .login-error, .demo-typing span, .demo-msg .tick { animation: none !important; }
    .demo-body > * { animation: none !important; opacity: 1; transform: none; }
    .demo-typing { display: none; }
    .demo-msg .tick { color: #53bdeb; }
}


.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem max(16px, env(safe-area-inset-right, 0px)) 1.5rem max(16px, env(safe-area-inset-left, 0px)); }
.auth-card { width: 100%; max-width: 460px; border-radius: 18px; }