/* Sign-in pages (sign in, owner setup, change password): a dark brand panel on the left, the form card on the right.
   Pure CSS and inline SVG; light and dark aware. */
:root {
  --si-navy: #0b1f4d; --si-ink: #061230; --si-blue: #1565d8; --si-blue2: #2f8cf0; --si-teal: #14b8a6; --si-mint: #5eead4;
  --si-text: #15223d; --si-muted: #5b6b86; --si-line: #d8e1ef; --si-field: #f7f9fd; --si-card: #ffffff; --si-bg: #f2f5fb;
  --si-err-bg: #fff1f2; --si-err-line: #fecdd3; --si-err: #b4232f;
  --si-grad: linear-gradient(120deg, #1565d8 0%, #2f8cf0 55%, #14b8a6 100%);
}
@media (prefers-color-scheme: dark) {
  :root { --si-text: #e6ecf7; --si-muted: #9aa8c2; --si-line: #2a3756; --si-field: #111c35; --si-card: #0e1830; --si-bg: #091226;
    --si-err-bg: #3a1220; --si-err-line: #6b2233; --si-err: #ffb4bf; }
}
* { box-sizing: border-box }
html, body { margin: 0; min-height: 100% }
body.si { font-family: "Segoe UI", Inter, system-ui, -apple-system, Roboto, Arial, sans-serif; color: var(--si-text); background: var(--si-bg); -webkit-font-smoothing: antialiased }
.si-page { min-height: 100vh; min-height: 100dvh; display: grid; grid-template-columns: minmax(0, 55fr) minmax(0, 45fr) }

/* ---------- Left: brand panel ---------- */
.si-hero { position: relative; overflow: hidden; isolation: isolate; color: #e8eefc; display: flex; flex-direction: column; justify-content: space-between; gap: 32px;
  padding: clamp(28px, 5vh, 56px) clamp(24px, 5vw, 80px);
  background: radial-gradient(1200px 700px at 110% -10%, #1d4ed8 0%, transparent 55%), radial-gradient(900px 600px at -10% 110%, #0f766e 0%, transparent 55%), linear-gradient(160deg, #0b1f4d 0%, #061230 100%) }
.si-pattern { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; color: rgba(148, 178, 255, .10);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%); mask-image: radial-gradient(ellipse at 30% 40%, #000 20%, transparent 75%) }
.si-orb { position: absolute; z-index: -1; border-radius: 50%; filter: blur(60px); opacity: .55; animation: si-float 14s ease-in-out infinite alternate }
.si-orb-a { width: 340px; height: 340px; right: 8%; top: 18%; background: #2f8cf0 }
.si-orb-b { width: 260px; height: 260px; left: -60px; bottom: 10%; background: #14b8a6; animation-delay: -6s }
@keyframes si-float { to { transform: translate(30px, -24px) scale(1.08) } }

.si-brand { display: flex; align-items: center; gap: 14px }
.si-logo { flex: none; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; background: var(--si-grad); color: #fff;
  font: 800 20px/1 "Segoe UI", system-ui, sans-serif; letter-spacing: .5px; box-shadow: 0 10px 28px rgba(47, 140, 240, .45), inset 0 1px 0 rgba(255, 255, 255, .35) }
.si-name { font-weight: 800; font-size: 21px; letter-spacing: .2px; color: #fff }
.si-name span { color: var(--si-mint) }
.si-tag { margin-top: 3px; font-size: 11px; font-weight: 600; letter-spacing: 2.6px; text-transform: uppercase; color: #9fb2d9 }

.si-story { display: grid; gap: 20px; max-width: 620px }
.si-badge { justify-self: start; display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; color: #cfe0ff;
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px) }
.si-badge i { width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52, 211, 153, .2); animation: si-pulse 2s ease-in-out infinite }
@keyframes si-pulse { 50% { box-shadow: 0 0 0 7px rgba(52, 211, 153, .05) } }
.si-head { margin: 0; font-weight: 800; font-size: clamp(34px, 4vw, 58px); line-height: 1.04; letter-spacing: -1.4px; color: #fff }
.si-head span { background: linear-gradient(90deg, #7cc4ff, #5eead4); -webkit-background-clip: text; background-clip: text; color: transparent }
.si-desc { margin: 0; font-size: 16.5px; line-height: 1.6; color: #b9c7e4; max-width: 540px }
.si-feats { list-style: none; margin: 4px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; max-width: 560px }
.si-feats li { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: 12px; font-size: 14px; font-weight: 600; color: #e3ebfb;
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .10) }
.si-feats svg { flex: none; width: 20px; height: 20px; fill: none; stroke: var(--si-mint); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round }

.si-glass { position: absolute; right: clamp(24px, 4vw, 64px); top: 50%; width: 240px; padding: 18px; border-radius: 20px; transform: translateY(-50%) rotate(-3deg);
  background: linear-gradient(160deg, rgba(255, 255, 255, .14), rgba(255, 255, 255, .04)); border: 1px solid rgba(255, 255, 255, .18);
  box-shadow: 0 30px 60px rgba(0, 0, 0, .35); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px) }
.si-glass-head { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #b9c7e4 }
.si-glass-head em { font-style: normal; font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: 999px; color: #064e3b; background: #6ee7b7 }
.si-glass > b { display: block; margin-top: 6px; font-size: 26px; color: #fff; letter-spacing: -.5px }
.si-up { color: #6ee7b7; font-size: 11.5px; font-weight: 600 }
.si-spark { display: block; width: 100%; height: 64px; margin: 10px 0 6px }
.si-glass-rows { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; font-size: 12px; color: #b9c7e4; border-top: 1px solid rgba(255, 255, 255, .12); padding-top: 10px }
.si-glass-rows b { color: #fff } .si-glass-rows .ok { color: #6ee7b7 }
.si-foot { margin: 0; display: flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 600; color: #9fb2d9 }
.si-foot i { width: 4px; height: 4px; border-radius: 50%; background: var(--si-mint) }

/* ---------- Right: the form card ---------- */
.si-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; padding: 32px clamp(16px, 4vw, 64px);
  background: radial-gradient(700px 500px at 100% 0%, rgba(47, 140, 240, .10), transparent 60%), var(--si-bg) }
.si-box { width: 100%; max-width: 440px; background: var(--si-card); border: 1px solid var(--si-line); border-radius: 22px; padding: clamp(26px, 3vw, 40px);
  box-shadow: 0 24px 60px rgba(11, 31, 77, .10), 0 2px 6px rgba(11, 31, 77, .04); animation: si-in .45s ease-out both }
@keyframes si-in { from { opacity: 0; transform: translateY(10px) } }
.si-box form { display: grid; gap: 16px; margin: 0 }
.si-mini { display: none; align-items: center; gap: 10px; color: var(--si-text) }
.si-mini .si-logo { width: 38px; height: 38px; font-size: 15px; border-radius: 11px }
.si-welcome { margin: 0; font-weight: 800; font-size: 30px; letter-spacing: -.6px; color: var(--si-text) }
.si-lead { margin: -8px 0 6px; color: var(--si-muted); font-size: 15px }
.si-field { display: grid; gap: 8px }
.si-field > span:first-child { font-weight: 600; font-size: 13.5px; color: var(--si-text) }
.si-input { position: relative; display: flex; align-items: center; border: 1.5px solid var(--si-line); border-radius: 12px; background: var(--si-field); transition: border-color .15s, box-shadow .15s, background .15s }
.si-input:hover { border-color: #b8c6dd }
.si-input:focus-within { border-color: var(--si-blue2); background: var(--si-card); box-shadow: 0 0 0 4px rgba(47, 140, 240, .16) }
.si-input > svg { flex: none; width: 46px; height: 20px; padding-left: 14px; fill: none; stroke: #8794ad; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round }
.si-input:focus-within > svg { stroke: var(--si-blue2) }
.si-input input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; padding: 15px 14px 15px 10px; font: inherit; font-size: 16px; color: var(--si-text) }
.si-input input::placeholder { color: #98a3b8 }
.si-eye { flex: none; display: grid; place-items: center; width: 44px; height: 44px; margin-right: 4px; border: 0; border-radius: 10px; background: transparent; color: #8794ad; cursor: pointer }
.si-eye:hover { color: var(--si-blue2); background: rgba(47, 140, 240, .08) }
.si-eye:focus-visible { outline: 2px solid var(--si-blue2); outline-offset: 0 }
.si-eye svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round }
.si-eye .off, .si-eye.shown .on { display: none } .si-eye.shown .off { display: block }
.si-caps { color: #b45309; font-size: 12.5px; font-weight: 600 }
.si-hint { margin: -4px 0 0; color: var(--si-err); font-size: 13.5px; font-weight: 600 }
.si-button { position: relative; margin-top: 4px; width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; border-radius: 12px; padding: 15px;
  font: inherit; font-weight: 700; font-size: 16.5px; color: #fff; cursor: pointer; background: linear-gradient(90deg, #0f5bd0 0%, #2f8cf0 100%);
  box-shadow: 0 10px 24px rgba(21, 101, 216, .30); transition: transform .1s, box-shadow .15s, filter .15s }
.si-button:hover { filter: brightness(1.06); box-shadow: 0 14px 30px rgba(21, 101, 216, .38) }
.si-button:active { transform: translateY(1px) }
.si-button:focus-visible { outline: 3px solid rgba(47, 140, 240, .5); outline-offset: 2px }
.si-button[disabled] { cursor: progress; filter: saturate(.85) }
.si-spin { display: none; width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid rgba(255, 255, 255, .35); border-top-color: #fff; animation: si-rot .7s linear infinite }
.si-button.busy .si-spin { display: inline-block }
@keyframes si-rot { to { transform: rotate(360deg) } }
.si-problem { display: flex; align-items: flex-start; gap: 10px; padding: 12px 14px; border-radius: 12px; background: var(--si-err-bg); border: 1px solid var(--si-err-line); color: var(--si-err); font-weight: 600; font-size: 14px; line-height: 1.45; animation: si-shake .35s ease-out }
.si-problem svg { flex: none; width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round }
@keyframes si-shake { 25% { transform: translateX(-5px) } 75% { transform: translateX(5px) } }
.si-note { margin: 2px 0 0; text-align: center; color: var(--si-muted); font-size: 13.5px }
.si-secure { margin: 0; display: flex; align-items: center; justify-content: center; gap: 7px; color: var(--si-muted); font-size: 12px; text-align: center }
.si-secure svg { flex: none; width: 16px; height: 16px; fill: none; stroke: var(--si-teal); stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round }
.si-copy { margin: 0; color: var(--si-muted); font-size: 12px }

/* Owner setup and change password use plain labels and inputs inside the same card. */
.si-box .brand-mark { display: none }
.si-box h1 { font-weight: 800; font-size: 28px; letter-spacing: -.5px; color: var(--si-text); text-align: left !important }
.si-box .muted { color: var(--si-muted) }
.si-box form > label:not(.si-field) { display: grid; gap: 8px; font-weight: 600; font-size: 13.5px; color: var(--si-text) }
.si-box form > label:not(.si-field) input { border: 1.5px solid var(--si-line); border-radius: 12px; padding: 14px 15px; font: inherit; font-size: 16px; font-weight: 400; color: var(--si-text); background: var(--si-field) }
.si-box form > label:not(.si-field) input:focus { outline: 0; border-color: var(--si-blue2); background: var(--si-card); box-shadow: 0 0 0 4px rgba(47, 140, 240, .16) }
.si-box form > label:not(.si-field) small { font-weight: 400 }
.si-box .button.primary { border: 0; border-radius: 12px; padding: 15px; font: inherit; font-weight: 700; font-size: 16.5px; color: #fff; cursor: pointer; background: linear-gradient(90deg, #0f5bd0, #2f8cf0); box-shadow: 0 10px 24px rgba(21, 101, 216, .30) }
.si-box .warning { padding: 12px 14px; border-radius: 12px; background: var(--si-err-bg); border: 1px solid var(--si-err-line); color: var(--si-err); font-weight: 600 }
.si-box a { color: var(--si-blue2); font-weight: 600; text-decoration: none }

@media (max-width: 1799px) { .si-glass { display: none } }
@media (max-width: 960px) {
  .si-page { grid-template-columns: 1fr }
  .si-hero { gap: 18px; padding: 22px 20px 52px }
  .si-story { gap: 12px } .si-head { font-size: 30px; letter-spacing: -.8px }
  .si-desc { font-size: 14.5px } .si-feats, .si-foot { display: none }
  .si-panel { position: relative; z-index: 1; justify-content: flex-start; padding: 0 16px 24px; margin-top: -32px; background: transparent }
  .si-page { background: linear-gradient(var(--si-bg), var(--si-bg)) }
  .si-box { border-radius: 20px }
}
@media (max-width: 420px) { .si-badge { display: none } .si-welcome { font-size: 26px } .si-box { padding: 22px 18px } }
@media (prefers-reduced-motion: reduce) { .si-orb, .si-badge i, .si-box, .si-problem, .si-spin { animation: none } }