/* PandaChat – verejné stránky (landing, prihlásenie, registrácia). Používa tokeny z app.css. */
body.site { background: var(--bg); }
.site-nav { height: 64px; display: flex; align-items: center; background: rgba(255, 255, 255, .85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 30; }
.site-nav .brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.05rem; letter-spacing: -.02em; color: var(--text); }
.site-nav .brand .mark { width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, #6366f1, #a855f7); display: grid; place-items: center; color: #fff; font-size: 1rem; box-shadow: 0 4px 12px rgba(99, 102, 241, .35); }
.site-nav .links { display: flex; align-items: center; gap: .35rem; margin-left: auto; }
.site-nav .links a.lnk { color: var(--text-2); font-weight: 500; padding: .45rem .7rem; border-radius: 8px; }
.site-nav .links a.lnk:hover { background: var(--gray-50); color: var(--text); text-decoration: none; }
@media (max-width: 575.98px) { .site-nav .links a.lnk.opt { display: none; } }

/* prihlásenie / registrácia */
.auth-wrap { min-height: calc(100vh - 64px); display: flex; align-items: center; justify-content: center; padding: 2.5rem 1rem; }
.auth-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow-lg); padding: 2.25rem 2rem; }
.auth-card .brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.05rem; letter-spacing: -.02em; color: var(--text); margin-bottom: 1.5rem; }
.auth-card .brand .mark { width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, #6366f1, #a855f7); display: grid; place-items: center; color: #fff; font-size: 1rem; box-shadow: 0 4px 12px rgba(99, 102, 241, .35); }
.auth-card h1 { font-size: 1.35rem; margin-bottom: .3rem; }
.auth-card .sub { color: var(--muted); font-size: .875rem; margin-bottom: 1.5rem; line-height: 1.55; }
.auth-card .form-control { padding: .6rem .8rem; }
.auth-card .btn-primary { width: 100%; padding: .65rem; font-size: .9rem; }
.auth-card .foot { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border); text-align: center; color: var(--muted); font-size: .84rem; }
.auth-card .foot a { font-weight: 500; }
.auth-card .perks { display: flex; flex-direction: column; gap: .45rem; margin: 0 0 1.5rem; padding: 0; list-style: none; font-size: .82rem; color: var(--text-2); }
.auth-card .perks li { display: flex; gap: .5rem; align-items: flex-start; }
.auth-card .perks i { color: var(--green); margin-top: .1rem; }
@media (max-width: 575.98px) { .auth-card { padding: 1.75rem 1.25rem; } .auth-wrap { padding: 1.25rem .75rem; align-items: flex-start; } }

/* landing */
.hero { padding: 5rem 0 4rem; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -20% -10% auto; height: 120%; background: radial-gradient(60% 60% at 30% 20%, rgba(99, 102, 241, .16), transparent 70%), radial-gradient(50% 50% at 80% 30%, rgba(168, 85, 247, .14), transparent 70%); z-index: -1; }
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.12; letter-spacing: -.035em; font-weight: 750; }
.hero h1 .accent { background: linear-gradient(90deg, #4f46e5, #9333ea); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 1.08rem; color: var(--text-2); max-width: 560px; line-height: 1.6; }
.hero .cta { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.hero .cta .note { font-size: .8rem; color: var(--muted); width: 100%; }
.eyebrow { display: inline-flex; align-items: center; gap: .4rem; font-size: .75rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--brand); background: var(--brand-50); border: 1px solid var(--brand-100); border-radius: 999px; padding: .3rem .75rem; }
.demo-chat { width: 100%; max-width: 380px; margin-left: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow-lg); overflow: hidden; }
.demo-chat .dh { display: flex; align-items: center; gap: .65rem; padding: .9rem 1rem; background: linear-gradient(135deg, #4f46e5, #7c3aed); color: #fff; }
.demo-chat .dh .av { width: 34px; height: 34px; border-radius: 50%; background: rgba(255, 255, 255, .2); display: grid; place-items: center; font-weight: 700; }
.demo-chat .dh b { display: block; font-size: .9rem; }
.demo-chat .dh small { opacity: .85; font-size: .72rem; display: flex; align-items: center; gap: .3rem; }
.demo-chat .dh small::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #4ade80; }
.demo-chat .db { padding: 1rem; display: flex; flex-direction: column; gap: .5rem; background: var(--surface-2); }
.demo-chat .m { max-width: 84%; padding: .55rem .8rem; border-radius: 14px; font-size: .84rem; line-height: 1.45; }
.demo-chat .m.v { align-self: flex-end; background: var(--brand); color: #fff; border-bottom-right-radius: 4px; }
.demo-chat .m.b { align-self: flex-start; background: var(--surface); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.demo-chat .m.s { align-self: center; font-size: .72rem; color: var(--muted); background: transparent; }
.demo-chat .m.typing span { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--muted-2); margin-right: 3px; animation: blink 1.2s infinite; }
.demo-chat .m.typing span:nth-child(2) { animation-delay: .2s; } .demo-chat .m.typing span:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .3; } 40% { opacity: 1; } }
.demo-chat .df { display: flex; align-items: center; gap: .5rem; padding: .7rem 1rem; border-top: 1px solid var(--border); background: var(--surface); font-size: .82rem; color: var(--muted-2); }
.demo-chat .df .send { margin-left: auto; width: 30px; height: 30px; border-radius: 8px; background: var(--brand); color: #fff; display: grid; place-items: center; }
.logos { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; align-items: center; color: var(--muted); font-size: .8rem; font-weight: 500; }
.logos span { display: inline-flex; align-items: center; gap: .35rem; }
.logos i { color: var(--green); }
.section { padding: 4rem 0; }
.section-title { font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -.03em; margin-bottom: .5rem; }
.section-sub { color: var(--muted); max-width: 640px; font-size: 1rem; line-height: 1.6; }
.feature { height: 100%; padding: 1.4rem; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; }
.feature:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.feature .ic { width: 42px; height: 42px; border-radius: 11px; background: var(--brand-50); color: var(--brand); display: grid; place-items: center; font-size: 1.2rem; margin-bottom: .9rem; }
.feature h3 { font-size: 1rem; margin-bottom: .35rem; }
.feature p { color: var(--muted); font-size: .86rem; line-height: 1.55; margin: 0; }
.step-card { position: relative; padding: 1.4rem 1.4rem 1.4rem 4.2rem; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; height: 100%; }
.step-card .no { position: absolute; left: 1.4rem; top: 1.4rem; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; display: grid; place-items: center; }
.step-card h3 { font-size: 1rem; margin-bottom: .35rem; }
.step-card p { color: var(--muted); font-size: .86rem; margin: 0; line-height: 1.55; }
.lang-cloud { display: flex; flex-wrap: wrap; gap: .4rem; }
.lang-cloud span { background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: .3rem .7rem; font-size: .8rem; font-weight: 500; color: var(--text-2); }
.cta-band { background: linear-gradient(135deg, #1e1b4b, #312e81 60%, #4c1d95); color: #fff; border-radius: 20px; padding: 3rem 2rem; text-align: center; }
.cta-band h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); letter-spacing: -.03em; color: #fff; }
.cta-band p { color: #c7d2fe; max-width: 560px; margin: 0 auto 1.5rem; }
.cta-band .btn-light { background: #fff; color: var(--brand-600); border-color: #fff; font-weight: 600; }
.site-footer { padding: 2.5rem 0; color: var(--muted); font-size: .82rem; border-top: 1px solid var(--border); margin-top: 2rem; }
.site-footer a { color: var(--muted); }
@media (max-width: 991.98px) { .hero { padding: 3rem 0 2.5rem; } .demo-chat { margin: 2rem auto 0; } .section { padding: 3rem 0; } }