/* Path OS — Sign in / sign up / verify / reset (tokens from theme.css) */
html,body{height:100%}
body.auth{background:var(--surface)}
html:not([data-theme="dark"]) body.auth{background:var(--bg)}
.au{display:grid;grid-template-columns:minmax(0,45fr) minmax(0,55fr);min-height:100vh}

/* ===== Left: photo panel ===== */
.au-l{position:relative;min-height:100vh;overflow:hidden;display:flex;flex-direction:column;padding:44px 48px;color:var(--on-brand);
  background:var(--brand) url("auth-hero.jpg") center 30%/cover no-repeat}
/* darken toward the bottom for the statement, and behind the logo row */
.au-l::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(to bottom,color-mix(in srgb,var(--brand-700) 10%,transparent) 0%,color-mix(in srgb,var(--brand-700) 38%,transparent) 45%,color-mix(in srgb,var(--brand-700) 90%,transparent) 100%)}
.au-l::after{content:"";position:absolute;top:0;left:0;right:0;height:150px;pointer-events:none;background:linear-gradient(to bottom,color-mix(in srgb,var(--brand-700) 72%,transparent),transparent)}
.au-l>*{position:relative;z-index:2}
.au-lt{display:flex;align-items:center;justify-content:space-between;gap:12px}
.au-brand .p28-mark{width:44px;height:44px;border-radius:14px}
.au-beta{display:inline-flex;align-items:center;height:26px;padding:0 11px;border:1px solid color-mix(in srgb,var(--lime) 45%,transparent);border-radius:8px;font-size:11.5px;font-weight:700;letter-spacing:.03em;color:var(--lime)}
.au-say{margin-top:auto;max-width:460px;display:none}
body:not([data-scr="signup"]) .au-say[data-for="login"],body[data-scr="signup"] .au-say[data-for="signup"]{display:block}
.au-say p{font-size:26px;font-weight:700;letter-spacing:-.02em;line-height:1.32;color:var(--on-brand)}
.au-by{margin-top:18px;display:flex;flex-direction:column;gap:2px}
.au-by b{font-size:14px;font-weight:700;color:var(--on-brand)}
.au-by span{font-size:13px;font-weight:500;color:color-mix(in srgb,var(--on-brand) 78%,transparent)}
.au-copy{margin-top:26px;font-size:12.5px;font-weight:500;color:color-mix(in srgb,var(--on-brand) 78%,transparent)}

/* ===== Right: forms ===== */
.au-r{display:flex;flex-direction:column;min-height:100vh;padding:28px 40px}
.au-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13px;color:var(--muted);min-height:30px}
.au-top .au-mbrand{display:none;align-items:center;gap:10px}
#topAlt{display:none}
.au-mid{flex:1;display:flex;align-items:center;justify-content:center;padding:32px 0}
.scr{width:100%;max-width:400px;display:none;flex-direction:column;gap:18px}
.scr.on{display:flex;animation:scrIn .4s cubic-bezier(.2,.7,.2,1)}
@keyframes scrIn{from{opacity:0;translate:14px 0}to{opacity:1;translate:none}}
.scr h1{font-size:24px;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.scr .sub{font-size:14px;font-weight:500;color:var(--muted);line-height:1.5;margin-top:7px}
.scr .sub b{color:var(--ink);font-weight:600;overflow-wrap:anywhere}
.hero-ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:color-mix(in oklch,var(--brand) 10%,var(--surface));color:var(--brand);position:relative}
.hero-ic svg{width:26px;height:26px}
.hero-ic.ok{background:var(--brand);color:var(--on-brand)}
.hero-ic.float{animation:flt 3s ease-in-out infinite}
@keyframes flt{50%{transform:translateY(-4px)}}
.hero-ic.ok::after{content:"";position:absolute;inset:-6px;border-radius:20px;border:2px solid color-mix(in oklch,var(--brand) 30%,transparent);animation:rng 1.6s ease-out infinite}
@keyframes rng{from{opacity:1;transform:scale(.9)}to{opacity:0;transform:scale(1.25)}}

/* Fields */
.f{display:flex;flex-direction:column;gap:6px}
.f label{font-size:12.5px;font-weight:700;color:var(--ink-2);display:flex;justify-content:space-between;align-items:center}
.f label a{font-weight:700;font-size:12px}
.iw{position:relative}
.iw>svg{display:none}
.iw .input{height:46px;padding:0 14px;border-radius:12px;font-size:14px;font-weight:500;background:var(--bg-softer);border-color:var(--line-2)}
.iw .input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 35%,transparent);background:var(--surface)}
.iw .input[type=password],.iw .input.pw{padding-right:44px}
.eye{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:8px;display:grid;place-items:center;color:var(--muted)}
.eye:hover{background:var(--bg-soft);color:var(--ink)}
.eye svg{width:16px;height:16px}
.fe{font-size:12px;color:var(--danger);display:none;align-items:center;gap:5px}
.fe svg{width:12px;height:12px}
.f.bad .fe{display:flex}
.f.bad .input{border-color:var(--danger-line);background:var(--danger-tint);box-shadow:none}
.fe{font-weight:600}
.chk{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);cursor:pointer;line-height:1.45}
.chk input{appearance:none;-webkit-appearance:none;width:20px;height:20px;border-radius:6px;border:1px solid var(--line-4);margin:1px 0 0;flex-shrink:0;display:grid;place-items:center;cursor:pointer;transition:all .15s;background:var(--surface)}
.chk input:checked{background:var(--accent);border-color:var(--accent)}
.chk input:checked::after{content:"";width:5px;height:9px;border:solid var(--on-lime);border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.chk input:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.chk.bad input{border-color:var(--danger)}

/* Primary action button (with "busy" shimmer) */
.go{position:relative;overflow:hidden;height:48px;border-radius:12px;font-size:14.5px;font-weight:700;width:100%}
#login .go{background:var(--ink);border-color:var(--ink);color:var(--surface)}
#login .go:hover{filter:brightness(.75);box-shadow:none;transform:none}
.go.go-accent{background:var(--lime);border-color:var(--lime);color:var(--on-lime)}
.go.go-accent:hover{background:var(--lime-700);border-color:var(--lime-700);color:var(--on-lime);box-shadow:none;transform:none}
.go.busy{pointer-events:none}
.go.busy::after{content:"";position:absolute;left:0;bottom:0;height:3px;width:40%;background:color-mix(in srgb,var(--on-brand) 70%,transparent);animation:bz 1s ease-in-out infinite}
@keyframes bz{from{transform:translateX(-100%)}to{transform:translateX(260%)}}
.alt{font-size:13.5px;font-weight:500;color:var(--muted);text-align:center;margin-top:6px}
.alt a{color:var(--ink)!important;font-weight:700!important}
.alt a,.lnk{font-weight:600;color:var(--brand);cursor:pointer}

/* Password strength */
.str{display:flex;gap:4px;margin-top:2px}
.str i{flex:1;height:4px;border-radius:999px;background:var(--line-2);transition:background .25s}
.str.s1 i:nth-child(-n+1){background:var(--danger)}
.str.s2 i:nth-child(-n+2){background:var(--warn-bar)}
.str.s3 i:nth-child(-n+3){background:var(--accent)}
.str.s4 i{background:var(--positive)}
.rules{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px;margin-top:6px}
.rules span{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);transition:color .2s}
.rules span i{width:14px;height:14px;border-radius:999px;border:1.5px solid var(--line-2);display:grid;place-items:center;transition:all .2s}
.rules span.ok{color:var(--positive)}
.rules span.ok i{background:var(--positive);border-color:var(--positive)}
.rules span.ok i::after{content:"";width:3px;height:6px;border:solid var(--surface);border-width:0 1.5px 1.5px 0;transform:rotate(45deg) translate(-.5px,-.5px)}

/* One-time code */
.otp{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.otp input{height:56px;border-radius:12px;border:1px solid var(--line-2);text-align:center;font-size:22px;font-weight:700;outline:none;font-variant-numeric:tabular-nums;transition:border-color .15s,box-shadow .15s,transform .15s;background:var(--surface);color:var(--ink);width:100%;min-width:0}
.otp input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in oklch,var(--brand) 12%,transparent);transform:translateY(-2px)}
.otp input.fill{background:color-mix(in oklch,var(--brand) 6%,var(--surface));border-color:color-mix(in oklch,var(--brand) 30%,var(--surface))}
.otp.bad input{border-color:var(--danger);background:var(--danger-tint)}
#otpErr{margin-top:-8px}
.shake{animation:shk .4s ease}
@keyframes shk{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.rs{font-size:13px;color:var(--muted);text-align:center}
.mail{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.back{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--muted);align-self:flex-start;cursor:pointer}
.back:hover{color:var(--ink);text-decoration:none}
.back.center{align-self:center}
.back svg{width:14px;height:14px}
.tip{display:flex;gap:10px;padding:12px 14px;border-radius:10px;background:var(--card-surface);border:1px solid var(--card-line);font-size:12.5px;color:var(--card-muted);line-height:1.45}
.tip svg{width:15px;height:15px;color:var(--card-ink);margin-top:1px;flex-shrink:0}
.au-foot{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted);flex-wrap:wrap;margin-top:14px}
.au-foot span:last-child{display:flex;gap:14px}
.au-foot a{color:var(--muted)}

/* Theme switcher button isn't shown on the sign-in page */
body.auth .thm-btn,body.auth .thm-panel{display:none!important}

/* the photo panel carries the © on wide screens */
@media (min-width:861px){.au-foot>span:first-child{visibility:hidden}}
.chk a{color:var(--ink)!important;font-weight:700}
@media (max-width:860px){.au{grid-template-columns:1fr}.au-l{display:none}.au-r{padding:20px}.au-top .au-mbrand{display:flex}}
@media (max-width:420px){.otp{gap:6px}.otp input{height:50px;font-size:20px}.mail{grid-template-columns:1fr}.rules{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){.hero-ic.float,.hero-ic.ok::after,.scr.on,.go.busy::after,.shake{animation:none}}