/* ════════════════════════════════════════════════════════════
   VAVEhub — authentication experience (signin / signup / OTP)
   Idea-bulb theme, animated, theme-aware, responsive
   ════════════════════════════════════════════════════════════ */

.auth-body{min-height:100vh;background:var(--bg);overflow-x:hidden}
.auth-body::before{display:none}

.auth-shell{display:grid;grid-template-columns:1.05fr 1fr;min-height:100vh}
@media (max-width:920px){.auth-shell{grid-template-columns:1fr}}

/* ═══════════ LEFT BRAND PANEL ═══════════ */
.auth-brand{position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;
  padding:2.6rem 3rem;background:
    radial-gradient(80% 70% at 20% 15%,rgba(46,111,232,.28),transparent 55%),
    radial-gradient(70% 60% at 85% 90%,rgba(90,162,255,.18),transparent 55%),
    linear-gradient(160deg,#081124,#05070f 70%)}
.auth-brand::after{content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;mask-image:radial-gradient(ellipse 80% 80% at 40% 40%,#000 20%,transparent 78%)}
@media (max-width:920px){.auth-brand{display:none}}
html[data-theme="light"] .auth-brand{background:
  radial-gradient(80% 70% at 20% 15%,rgba(46,111,232,.9),transparent 60%),
  radial-gradient(70% 60% at 85% 90%,rgba(29,78,216,.85),transparent 60%),
  linear-gradient(160deg,#1e3a8a,#0f2456 70%)}

.ab-top,.ab-mid,.ab-bot{position:relative;z-index:2}
.ab-brand{display:flex;align-items:center;gap:.6rem;font-family:var(--font-d);font-weight:800;font-size:1.55rem;color:#fff}
.ab-brand .logo-mark{width:34px;height:34px;color:#5aa2ff}
.ab-brand span{color:#5aa2ff}

.ab-mid{max-width:440px}
.ab-eyebrow{font-family:var(--font-m);font-size:.72rem;letter-spacing:.26em;text-transform:uppercase;color:#5aa2ff;margin-bottom:1.1rem}
.ab-head{font-family:var(--font-d);font-weight:800;font-size:2.5rem;line-height:1.12;color:#fff;letter-spacing:-.02em;margin-bottom:1.1rem}
.ab-head b{color:#7cb2ff}
.ab-rotator{height:1.6em;overflow:hidden;position:relative;margin-bottom:1.8rem}
.ab-rotator span{position:absolute;inset:0;color:#c7d5f0;font-size:1.02rem;opacity:0;transform:translateY(100%);animation:rot 12s infinite}
.ab-rotator span:nth-child(1){animation-delay:0s}
.ab-rotator span:nth-child(2){animation-delay:3s}
.ab-rotator span:nth-child(3){animation-delay:6s}
.ab-rotator span:nth-child(4){animation-delay:9s}
@keyframes rot{0%,2%{opacity:0;transform:translateY(100%)}4%,22%{opacity:1;transform:translateY(0)}26%,100%{opacity:0;transform:translateY(-100%)}}

.ab-stats{display:flex;gap:1.8rem;flex-wrap:wrap}
.ab-stats div b{display:block;font-family:var(--font-d);font-weight:700;font-size:1.5rem;color:#fff}
.ab-stats div span{font-size:.72rem;color:#93a6cf}
.ab-bot{font-size:.76rem;color:#7f92bd}
.ab-bot a{color:#9fb6e6}

/* ── Big animated bulb ── */
.ab-bulb{position:absolute;right:-40px;top:50%;transform:translateY(-50%);width:min(48%,420px);aspect-ratio:1;z-index:1;
  animation:ab-float 8s ease-in-out infinite alternate}
.ab-bulb svg{width:100%;height:100%;filter:drop-shadow(0 0 40px rgba(90,162,255,.4))}
.ab-halo{position:absolute;left:50%;top:42%;width:70%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50%;
  background:radial-gradient(circle,rgba(90,162,255,.35),transparent 62%);animation:ab-glow 4s ease-in-out infinite}
.abg-glass{fill:rgba(124,178,255,.06);stroke:#7cb2ff;stroke-width:1.4;stroke-linejoin:round}
.abg-base{fill:#7cb2ff}
.abg-fil{fill:none;stroke:#ffcf6a;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:90;stroke-dashoffset:90;animation:ab-fil 4s ease-in-out infinite}
.abg-ray{stroke:#7cb2ff;stroke-width:1.6;stroke-linecap:round;opacity:0;transform-origin:center;animation:ab-ray 4s ease-in-out infinite}
.abg-ray.d2{animation-delay:.12s}.abg-ray.d3{animation-delay:.24s}.abg-ray.d4{animation-delay:.36s}.abg-ray.d5{animation-delay:.48s}.abg-ray.d6{animation-delay:.6s}
.ab-particle{position:absolute;border-radius:50%;background:#7cb2ff;opacity:0;animation:ab-rise 6s ease-in infinite}
.ab-particle.p1{width:8px;height:8px;left:22%;top:55%}
.ab-particle.p2{width:6px;height:6px;left:60%;top:62%;background:#ffcf6a;animation-delay:1.6s}
.ab-particle.p3{width:5px;height:5px;left:40%;top:48%;animation-delay:3.2s}
.ab-particle.p4{width:7px;height:7px;left:70%;top:50%;animation-delay:4.6s;background:#ffcf6a}
@keyframes ab-float{from{transform:translateY(-52%) rotate(-2.5deg)}to{transform:translateY(-46%) rotate(2.5deg)}}
@keyframes ab-glow{0%,100%{opacity:.5;transform:translate(-50%,-50%) scale(.94)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.06)}}
@keyframes ab-fil{0%{stroke-dashoffset:90;opacity:.4}40%{stroke-dashoffset:0;opacity:1}62%{stroke-dashoffset:0;opacity:1}100%{stroke-dashoffset:-90;opacity:.4}}
@keyframes ab-ray{0%,26%{opacity:0;transform:scale(.85)}46%,60%{opacity:.9;transform:scale(1)}82%,100%{opacity:0}}
@keyframes ab-rise{0%{opacity:0;transform:translateY(0) scale(.5)}14%{opacity:.9}60%{opacity:.55}100%{opacity:0;transform:translateY(-120px) scale(1.2)}}

/* ═══════════ RIGHT FORM PANEL ═══════════ */
.auth-panel{position:relative;display:flex;flex-direction:column;padding:1.6rem 2rem 2.4rem;background:var(--bg)}
.ap-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:auto}
.ap-back{font-size:.85rem;color:var(--muted);text-decoration:none;transition:color .25s}
.ap-back:hover{color:var(--txt)}
.ap-brand-mobile{display:none;align-items:center;gap:.5rem;font-family:var(--font-d);font-weight:800;font-size:1.2rem;color:var(--txt)}
.ap-brand-mobile .logo-mark{width:26px;height:26px;color:var(--acc1)}
.ap-brand-mobile span{color:var(--acc1)}
@media (max-width:920px){.ap-brand-mobile{display:flex}.ap-back{display:none}}

.auth-card{width:100%;max-width:420px;margin:auto;padding:1rem 0}
.auth-view{display:none;animation:av-in .45s var(--ease-spring)}
.auth-view.is-active{display:block}
@keyframes av-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.av-icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(46,111,232,.12);border:1px solid rgba(46,111,232,.3);margin-bottom:1.1rem}
.av-icon svg{width:28px;height:28px;color:var(--acc1)}
.auth-card h1{font-family:var(--font-d);font-size:1.55rem;font-weight:700;letter-spacing:-.01em;margin-bottom:.4rem}
.auth-card .av-sub{color:var(--muted);font-size:.9rem;margin-bottom:1.6rem}
.av-sub b{color:var(--txt)}

.field{margin-bottom:1rem;position:relative}
.field label{display:block;font-size:.78rem;font-weight:600;color:var(--muted);margin-bottom:.4rem}
.field input{width:100%;padding:.85rem 1rem;border-radius:12px;border:1px solid var(--line);background:var(--bg2);color:var(--txt);
  font-family:var(--font-b);font-size:.95rem;outline:none;transition:border-color .25s,box-shadow .25s}
.field input:focus{border-color:var(--acc2);box-shadow:0 0 0 3px rgba(46,111,232,.15)}
.field input::placeholder{color:#5f6c88}
.field.has-icon input{padding-right:2.8rem}
.field-toggle{position:absolute;right:.6rem;top:2.05rem;background:none;border:0;cursor:pointer;color:var(--muted);font-size:1.05rem;padding:.3rem;line-height:1}
.field-toggle:hover{color:var(--txt)}
.field-err{display:none;color:#f87171;font-size:.75rem;margin-top:.35rem}
.field.is-error input{border-color:#f87171}
.field.is-error .field-err{display:block}

/* password strength */
.pw-strength{display:flex;gap:4px;margin-top:.5rem}
.pw-strength i{flex:1;height:4px;border-radius:3px;background:var(--track);transition:background .3s}
.pw-strength[data-score="1"] i:nth-child(1){background:#f87171}
.pw-strength[data-score="2"] i:nth-child(-n+2){background:#f59e0b}
.pw-strength[data-score="3"] i:nth-child(-n+3){background:#5aa2ff}
.pw-strength[data-score="4"] i{background:#34d399}
.pw-hint{font-size:.72rem;color:var(--muted);margin-top:.35rem}

.field-row{display:flex;justify-content:space-between;align-items:center;margin:-.3rem 0 1.2rem}
.checkbox{display:flex;align-items:center;gap:.5rem;font-size:.82rem;color:var(--muted);cursor:pointer;user-select:none}
.checkbox input{width:16px;height:16px;accent-color:var(--acc2)}
.link-btn{background:none;border:0;color:var(--acc1);font-size:.82rem;font-weight:600;cursor:pointer;font-family:var(--font-b);padding:0}
.link-btn:hover{text-decoration:underline}

.btn-full{width:100%;justify-content:center;padding:.95rem;font-size:.95rem;position:relative}
.btn-full[disabled]{opacity:.6;cursor:not-allowed}
.btn-spinner{width:17px;height:17px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;display:none;animation:spin .7s linear infinite}
.btn-full.is-loading .btn-label{display:none}
.btn-full.is-loading .btn-spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

.av-alt{text-align:center;font-size:.86rem;color:var(--muted);margin-top:1.5rem}
.av-divider{display:flex;align-items:center;gap:1rem;margin:1.4rem 0;color:var(--muted);font-size:.75rem}
.av-divider::before,.av-divider::after{content:"";flex:1;height:1px;background:var(--line)}
.sso-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:.7rem;padding:.8rem;border-radius:12px;
  border:1px solid var(--line);background:var(--card);color:var(--txt);font-family:var(--font-b);font-weight:600;font-size:.9rem;cursor:pointer;transition:border-color .25s,background .25s}
.sso-btn:hover{border-color:var(--acc1);background:var(--card-hi)}
.sso-btn svg{width:18px;height:18px}

/* form banner (success/error) */
.form-banner{display:none;padding:.75rem 1rem;border-radius:10px;font-size:.83rem;margin-bottom:1.2rem;border:1px solid}
.form-banner.show{display:block;animation:av-in .3s}
.form-banner.ok{background:rgba(52,211,153,.1);border-color:rgba(52,211,153,.4);color:#6ee7b7}
.form-banner.err{background:rgba(248,113,113,.1);border-color:rgba(248,113,113,.4);color:#fca5a5}

/* ── OTP inputs ── */
.otp-row{display:flex;gap:.6rem;justify-content:space-between;margin-bottom:1.2rem}
.otp-row input{width:100%;aspect-ratio:1;text-align:center;font-family:var(--font-d);font-size:1.5rem;font-weight:700;
  border-radius:12px;border:1px solid var(--line);background:var(--bg2);color:var(--txt);outline:none;transition:border-color .2s,box-shadow .2s,transform .2s}
.otp-row input:focus{border-color:var(--acc2);box-shadow:0 0 0 3px rgba(46,111,232,.15)}
.otp-row input.filled{border-color:var(--acc1);transform:scale(1.04)}
.otp-resend{text-align:center;font-size:.82rem;color:var(--muted);margin-top:.4rem}
.otp-resend b{color:var(--acc1);font-family:var(--font-m)}

/* demo-mode OTP reveal banner */
.demo-otp{display:none;margin-top:1rem;padding:.7rem .9rem;border-radius:10px;border:1px dashed var(--acc3);background:rgba(217,164,74,.08);font-size:.78rem;color:var(--acc3);text-align:center}
.demo-otp.show{display:block}
.demo-otp b{font-family:var(--font-m);font-size:1.05rem;letter-spacing:.25em;color:var(--acc3)}

/* success view */
.av-success{text-align:center}
.av-success .success-ring{width:88px;height:88px;margin:0 auto 1.3rem;border-radius:50%;display:grid;place-items:center;
  background:rgba(52,211,153,.12);border:2px solid rgba(52,211,153,.5);animation:pop .5s var(--ease-spring)}
.av-success .success-ring svg{width:44px;height:44px;color:#34d399}
@keyframes pop{0%{transform:scale(.5);opacity:0}100%{transform:scale(1);opacity:1}}

.mode-note{position:absolute;left:0;right:0;bottom:.7rem;text-align:center;font-size:.68rem;color:var(--muted);opacity:.7}

@media (max-width:920px){
  .auth-panel{padding:1.4rem 1.4rem 2rem;min-height:100vh}
  .auth-card{padding:1.4rem 0}
}
@media (prefers-reduced-motion:reduce){
  .ab-bulb,.ab-halo,.abg-fil,.abg-ray,.ab-particle,.ab-rotator span{animation:none!important}
  .abg-fil{stroke-dashoffset:0}.abg-ray{opacity:.6}
  .ab-rotator span:first-child{opacity:1;transform:none}
}

/* ── already-signed-in notice (auth page) ── */
.signed-note{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;max-width:440px;margin:0 auto 1.1rem;padding:.7rem .9rem;border:1px solid var(--line);border-radius:14px;background:var(--card);font-size:.86rem;color:var(--muted)}
.signed-note .sn-avatar{width:30px;height:30px;border-radius:50%;background:var(--acc2);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-d);flex:none}
.signed-note .sn-text b{color:var(--txt)}
.signed-note .sn-btn{padding:.42rem .8rem;font-size:.78rem;margin-left:auto}
.signed-note .sn-btn + .sn-btn{margin-left:0}