/* =====================================================================
   Phone Setu — authentication pages (split-screen shell)
   Left: branded navy panel (desktop only). Right: the form.
   ===================================================================== */
.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr)}

/* ---- Left brand panel ---- */
.auth-brand{position:relative;overflow:hidden;color:#fff;padding:clamp(2rem,4vw,3.5rem);
    display:flex;flex-direction:column;justify-content:space-between;
    background:linear-gradient(150deg,var(--navy-800) 0%,var(--navy-900) 60%,#081a33 100%)}
.auth-brand::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
    background:radial-gradient(600px 300px at 15% 10%,rgba(37,99,235,.35),transparent 60%),
               radial-gradient(500px 260px at 90% 90%,rgba(37,99,235,.25),transparent 60%)}
.auth-brand > *{position:relative;z-index:1}
.auth-logo{display:inline-flex;align-items:center;gap:.6rem;color:#fff;font-weight:800;font-size:var(--fs-lg);letter-spacing:-.01em}
.auth-logo .brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;
    background:rgba(255,255,255,.12);border-radius:10px}
.auth-logo .brand-mark svg{width:20px;height:20px}
.auth-brand-mid h2{color:#fff;font-size:clamp(1.6rem,2.6vw,2.4rem);line-height:1.2;max-width:16ch;margin-bottom:var(--space-6)}
.auth-points{list-style:none;padding:0;margin:0;display:grid;gap:var(--space-4)}
.auth-points li{display:flex;align-items:flex-start;gap:.7rem;font-size:var(--fs-base);color:var(--blue-100)}
.auth-points svg{flex:none;width:20px;height:20px;color:#fff;background:rgba(255,255,255,.14);border-radius:50%;padding:3px;margin-top:1px}
.auth-brand-foot{font-size:var(--fs-sm);color:rgba(255,255,255,.6)}

/* ---- Right form panel ---- */
.auth-main{display:flex;flex-direction:column;background:var(--bg,#fff)}
.auth-topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;
    padding:var(--space-5) clamp(1.25rem,4vw,3rem)}
.auth-logo-sm{color:var(--navy-800);font-size:var(--fs-base);display:none}
.auth-logo-sm .brand-mark{background:var(--blue-50)}
.auth-logo-sm .brand-mark svg{color:var(--accent)}
.auth-topbar .lang-form{margin-left:auto;width:150px}
.auth-body{flex:1;display:flex;align-items:center;justify-content:center;
    padding:0 clamp(1.25rem,4vw,3rem) var(--space-10)}
.auth-card{width:100%;max-width:430px}

.auth-head{margin-bottom:var(--space-6)}
.auth-head .eyebrow{margin-bottom:var(--space-2)}
.auth-head h1{font-size:var(--fs-3xl);line-height:1.15;margin-bottom:.4rem}
.auth-head p{color:var(--slate-500);margin:0;font-size:var(--fs-base)}

.field-row{display:flex;align-items:baseline;justify-content:space-between;gap:1rem}
.field-link{font-size:var(--fs-sm);font-weight:600}
.auth-alt{margin-top:var(--space-4)}
.auth-foot-link{text-align:center;color:var(--slate-500);margin-top:var(--space-6)}
.auth-tabs{display:flex;gap:.3rem;background:var(--slate-100);border-radius:999px;padding:4px;margin-bottom:var(--space-5)}
.auth-tab{flex:1;text-align:center;padding:.55rem .8rem;border-radius:999px;font-weight:700;font-size:var(--fs-sm);
    color:var(--slate-600);text-decoration:none}
.auth-tab.active{background:#fff;color:var(--accent);box-shadow:var(--shadow-sm)}

/* ---- Divider ---- */
.auth-divider{display:flex;align-items:center;gap:1rem;margin:var(--space-5) 0;color:var(--slate-400);font-size:var(--fs-sm)}
.auth-divider::before,.auth-divider::after{content:"";height:1px;flex:1;background:var(--border)}

/* ---- Social buttons ---- */
.social-btns{display:grid;gap:var(--space-3)}
.social-btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
    padding:.7rem 1rem;border:1px solid var(--border-strong);border-radius:var(--r-md);
    background:#fff;color:var(--navy-800);font-weight:600;font-size:var(--fs-sm);box-shadow:var(--shadow-xs);
    transition:background var(--dur-fast) var(--ease),border-color var(--dur-fast),transform var(--dur-fast)}
.social-btn:hover{background:var(--blue-50);border-color:var(--blue-200);color:var(--navy-800);transform:translateY(-1px)}
.social-btn svg{flex:none}

/* ---- Compact social icons (top of sign-up) ---- */
.social-icons{display:flex;align-items:center;gap:.6rem;margin-bottom:var(--space-5)}
.social-icons-label{font-size:var(--fs-sm);color:var(--slate-500);margin-right:.2rem}
.social-icon{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
    border:1px solid var(--border-strong);border-radius:12px;background:#fff;box-shadow:var(--shadow-xs);
    transition:background var(--dur-fast) var(--ease),border-color var(--dur-fast),transform var(--dur-fast)}
.social-icon:hover{background:var(--blue-50);border-color:var(--blue-200);transform:translateY(-1px)}

/* ---- Responsive: collapse to a single column ---- */
@media (max-width:900px){
    .auth-shell{grid-template-columns:1fr}
    .auth-brand{display:none}
    .auth-logo-sm{display:inline-flex}
}
@media (max-width:480px){
    .auth-body{padding-inline:1.25rem}
    .auth-head h1{font-size:var(--fs-2xl)}
    .social-icons{flex-wrap:wrap}
}

@media (prefers-color-scheme:dark){
    /* forms stay light for legibility even in dark UA themes */
    .auth-main{background:#fff}
}