:root{--ink:#0b1e33;--navy:#063451;--blue:#00537a;--sky:#e9f4f8;--gold:#f5a201;--paper:#f7f8fa;--surface:#fff;--muted:#687787;--line:#dce4ea;--bad:#b43c2d;--shadow:0 28px 80px rgba(8,42,66,.14)}
*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:"Vazirmatn",system-ui,sans-serif;background:#f3f6f8;color:var(--ink)}a{color:inherit;text-decoration:none}button,input{font:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(245,162,1,.45);outline-offset:3px}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(360px,.9fr) minmax(430px,1.1fr)}.auth-visual{position:relative;overflow:hidden;padding:clamp(34px,6vw,80px);display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#062f4c,#075d7d);color:#fff}.auth-visual:after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:rgba(255,255,255,.07);left:-220px;bottom:-220px}.brand,.auth-visual>div{position:relative;z-index:1}.brand img,.mobile-brand img{display:block;width:175px;filter:brightness(0) invert(1)}.auth-visual h1{margin:18px 0;font-size:clamp(2.6rem,5.4vw,5.6rem);line-height:1.13;letter-spacing:-.06em}.auth-visual p{max-width:570px;color:rgba(255,255,255,.75);line-height:2;font-size:1.05rem}.eyebrow{display:block;color:#85d5ea;font-size:.76rem;font-weight:900;letter-spacing:.14em;direction:ltr;text-align:right}.auth-points{display:flex;gap:8px;flex-wrap:wrap}.auth-points span{padding:8px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);font-size:.82rem;font-weight:700}.auth-card{display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,7vw,92px);background:#fff}.mobile-brand{display:none}.auth-card>.eyebrow{color:var(--blue)}.auth-card h2{margin:9px 0 0;font-size:clamp(2rem,4vw,3.5rem);letter-spacing:-.045em}.auth-lead{margin:12px 0 4px;color:var(--muted);line-height:1.8}.auth-error{margin:16px 0 0;padding:12px 14px;border:1px solid #f0d6d1;background:#fff7f5;color:var(--bad);border-radius:13px;font-weight:700}.auth-tabs{display:inline-flex;align-self:flex-start;gap:6px;margin:24px 0 14px;padding:5px;border:1px solid var(--line);border-radius:999px;background:var(--paper)}.tab{border:0;border-radius:999px;background:transparent;color:var(--ink);padding:9px 25px;font-weight:900;cursor:pointer}.tab.active{background:var(--navy);color:#fff}.auth-form{display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;max-width:760px}.auth-form.active{display:grid}.auth-form label{display:grid;gap:7px;font-weight:800;font-size:.9rem}.auth-form label small{color:var(--muted);font-weight:500}.auth-form input{width:100%;border:1px solid var(--line);background:#fbfcfd;border-radius:13px;padding:12px 13px;outline:0;direction:ltr;text-align:left}.auth-form input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,83,122,.1)}.auth-form button{grid-column:1/-1;border:0;border-radius:14px;min-height:52px;background:var(--gold);color:#17202a;font-weight:900;cursor:pointer;margin-top:4px}.auth-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:var(--blue);font-weight:800;font-size:.88rem}.auth-links a:hover{text-decoration:underline}
@media(max-width:900px){.auth-shell{grid-template-columns:1fr}.auth-visual{display:none}.auth-card{min-height:100vh}.mobile-brand{display:block;margin-bottom:28px}.mobile-brand img{filter:none;width:160px}.auth-card{padding:28px clamp(18px,7vw,64px)}}
@media(max-width:620px){.auth-form{grid-template-columns:1fr}.auth-card h2{font-size:2.05rem}.auth-tabs{width:100%}.tab{flex:1}.auth-links{display:grid;gap:10px}}

.consent-field{grid-column:1/-1!important;display:flex!important;align-items:flex-start;gap:10px;font-size:.78rem!important;line-height:1.8;color:var(--muted);font-weight:650!important}.consent-field input{width:18px!important;height:18px;margin-top:3px;accent-color:var(--blue);flex:0 0 auto}.consent-field a{color:var(--blue);text-decoration:underline}

/* v2.5 visual integration */
:root{--paper:#f8f5ef;--surface:#fffdf9;--line:#dde6e6}
body{background:linear-gradient(145deg,#f8f4eb,#eef5f5)}
.auth-visual{background-image:linear-gradient(180deg,rgba(5,30,44,.18),rgba(5,30,44,.92)),url('../assets/images/hero-coworking-human.webp');background-size:cover;background-position:center}
.auth-visual:after{display:none}.auth-visual .brand img{background:rgba(255,255,255,.1);padding:12px;border-radius:16px;backdrop-filter:blur(12px)}
.auth-card{background:#fffdf9}.auth-form input{background:#fff}.auth-tabs{background:#f4f1ea}

/* FLUENT Academy v3 Vocabulary auth */
.vocab-auth-v3{margin:0;min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 15%,rgba(255,149,108,.13),transparent 27%),radial-gradient(circle at 90% 80%,rgba(11,111,141,.12),transparent 28%),#f4f5f2;font-family:Inter,Vazirmatn,system-ui,sans-serif;color:#102437}.vocab-auth-card{width:min(640px,100%);background:#fff;border:1px solid #dfe6e4;border-radius:34px;padding:42px;box-shadow:0 28px 80px rgba(16,36,55,.1)}.vocab-auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:42px}.vocab-auth-brand img{width:165px}.vocab-auth-brand span{font-size:10px;letter-spacing:.2em;font-weight:900;color:#87949c;border-left:1px solid #d7dfdf;padding-left:12px}.vocab-auth-kicker{font-size:10px;letter-spacing:.16em;font-weight:900;color:#0b6f8d}.vocab-auth-card h1{font-size:clamp(38px,7vw,62px);line-height:1.04;letter-spacing:-.045em;margin:10px 0 16px}.vocab-auth-card>p{font-size:14px;line-height:1.8;color:#6e7c86;max-width:520px}.vocab-auth-actions{display:flex;gap:10px;margin:26px 0 15px}.vocab-auth-primary,.vocab-auth-secondary{min-height:46px;padding:0 18px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-weight:850;font-size:13px}.vocab-auth-primary{background:#102437;color:#fff}.vocab-auth-secondary{background:#fff;color:#102437;border:1px solid #dfe6e4}.vocab-auth-fa{font-family:Vazirmatn,sans-serif!important;font-size:12px!important;color:#8a969c!important;margin-top:20px!important}.vocab-auth-back{display:inline-block;margin-top:18px;color:#0b6f8d;font-size:12px;font-weight:800}@media(max-width:600px){.vocab-auth-v3{padding:0;background:#fff}.vocab-auth-card{min-height:100vh;border:0;border-radius:0;padding:30px 20px;box-shadow:none}.vocab-auth-actions{display:grid}.vocab-auth-primary,.vocab-auth-secondary{width:100%}}