/* ScopeLine v2.2 pre-authentication surface.
   This file is deliberately self-contained: sign-in must never inherit the
   legacy orange/glass theme, wait on a webfont, or depend on authenticated app
   assets before a secure session exists. */

:root {
  color-scheme: dark;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --bg-chrome: #070a0e;
  --bg: #0e141b;
  --bg-raised: #182029;
  --bg-inset: #0a0f14;
  --stroke: rgb(150 180 215 / 0.13);
  --stroke-strong: rgb(150 180 215 / 0.26);
  --paper: rgb(150 180 215 / 0.07);
  --t1: #fff;
  --t2: #cfd6de;
  --t3: #b6bfc9;
  --accent: #f2f0ea;
  --on-accent: #0d1014;
  --danger: #ff5d62;
  --danger-soft: rgb(255 93 98 / 0.13);
  --focus: #f2f0ea;
  --shadow-1: 0 1px 2px rgb(0 0 0 / 0.5), 0 8px 21px rgb(0 0 0 / 0.34);
  --sp-1: 3px;
  --sp-2: 6px;
  --sp-3: 9px;
  --sp-4: 12px;
  --sp-5: 15px;
  --sp-6: 18px;
  --sp-8: 24px;
  --sp-12: 36px;
  --r-sm: 5px;
  --r-md: 8px;
  --r-xl: 15px;
  --dur-1: 120ms;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg-chrome: #e4eaf1;
  --bg: #eef2f6;
  --bg-raised: #fff;
  --bg-inset: #e3e9ef;
  --stroke: rgb(35 55 80 / 0.16);
  --stroke-strong: rgb(35 55 80 / 0.32);
  --paper: rgb(35 55 80 / 0.07);
  --t1: #0d1014;
  --t2: #2a323c;
  --t3: #3e4854;
  --accent: #14181d;
  --on-accent: #f2f0ea;
  --danger: #c7262b;
  --danger-soft: rgb(199 38 43 / 0.1);
  --focus: #14181d;
  --shadow-1: 0 1px 2px rgb(13 16 20 / 0.08), 0 8px 20px rgb(13 16 20 / 0.1);
}

* { box-sizing: border-box; }

html,
body { min-height: 100%; }

body {
  margin: 0;
  background: var(--bg-chrome);
  color: var(--t2);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea { font: inherit; }

a { color: inherit; }

.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; }
.icon-sm { width: 16px; height: 16px; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.login-page { min-height: 100vh; min-height: 100dvh; }

.login-welcome {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding:
    max(var(--sp-6), env(safe-area-inset-top))
    max(var(--sp-5), env(safe-area-inset-right))
    max(var(--sp-6), env(safe-area-inset-bottom))
    max(var(--sp-5), env(safe-area-inset-left));
  background: var(--bg-chrome);
}

.login-welcome-card {
  width: min(620px, 100%);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  overflow: hidden;
  border: 1px solid var(--stroke-strong);
  border-radius: var(--r-xl);
  background: var(--bg-raised);
  box-shadow: var(--shadow-1);
}

.login-welcome-brand {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-8) var(--sp-6);
  border-right: 1px solid var(--stroke);
  background-color: var(--bg-inset);
  background-image:
    linear-gradient(var(--paper) 1px, transparent 1px),
    linear-gradient(90deg, var(--paper) 1px, transparent 1px);
  background-size: 14px 14px;
}

.login-welcome-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent);
  color: var(--on-accent);
}

.login-welcome-mark svg { width: 34px; height: 34px; fill: currentColor; }

.login-welcome-word {
  color: var(--t1);
  font-size: 30px;
  font-weight: 820;
  letter-spacing: -0.035em;
  line-height: 1;
}

.login-welcome-line {
  max-width: 30ch;
  margin: 0;
  color: var(--t2);
  font-size: 11px;
  text-wrap: pretty;
}

.login-welcome-env {
  margin-top: auto;
  padding-top: var(--sp-4);
  color: var(--t3);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.login-welcome-entry {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-8) var(--sp-6);
}

.login-welcome-heading { display: grid; gap: var(--sp-2); }

.eyebrow {
  color: var(--t3);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-welcome-heading h1 {
  margin: 0;
  color: var(--t1);
  font-size: 22px;
  font-weight: 820;
  letter-spacing: -0.035em;
  line-height: 1.1;
  text-wrap: balance;
}

.login-welcome-heading p,
.login-identity-note,
.login-access-note,
.login-help-body p { margin: 0; }

.login-welcome-heading p,
.login-identity-note { color: var(--t2); font-size: 11px; text-wrap: pretty; }
.login-identity-note,
.login-access-note { color: var(--t3); }
.login-access-note { font-size: 10px; }

.btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--sp-5);
  border: 1px solid var(--stroke-strong);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 720;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease);
}

.btn-primary { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.btn-block { width: 100%; }
.btn:hover { opacity: 0.92; }
.btn:active { transform: translateY(1px); }

.btn:focus-visible,
.login-help summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.login-alert {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-left: 3px solid var(--danger);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--danger-soft);
  color: var(--t1);
  font-size: 11px;
}

.login-alert .icon { flex: 0 0 auto; margin-top: 1px; color: var(--danger); }

.login-help { border-top: 1px solid var(--stroke); padding-top: var(--sp-3); }
.login-help summary { width: fit-content; color: var(--t2); font-size: 11px; font-weight: 600; cursor: pointer; }
.login-help-body { display: grid; gap: var(--sp-2); padding-top: var(--sp-3); color: var(--t3); font-size: 11px; }

@media (max-width: 540px) {
  .login-welcome { align-items: start; padding-top: max(var(--sp-12), env(safe-area-inset-top)); }
  .login-welcome-card { grid-template-columns: 1fr; }
  .login-welcome-brand { border-right: 0; border-bottom: 1px solid var(--stroke); }
  .login-welcome-env { margin-top: 0; }
}

@media (max-width: 420px) {
  .login-welcome { padding-inline: max(var(--sp-3), env(safe-area-inset-left)); }
  .login-welcome-brand,
  .login-welcome-entry { padding: var(--sp-6); }
  .btn { min-height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  .btn { transition-duration: 0ms; }
}

@media (forced-colors: active) {
  .login-welcome-card,
  .login-alert,
  .login-help { border-color: CanvasText; }
  .login-welcome-mark,
  .btn-primary { forced-color-adjust: none; }
}