/* ============================================================
   System Cleaner — shared glass design system.
   Совпадает с палитрой system_cleaner.html: paper + ink + blue/purple
   + glass tokens. Все auth-страницы и профиль подхватывают отсюда.
   ============================================================ */

:root{
  /* --- paper --- */
  --paper-0: oklch(14% 0.02 265);
  --paper-1: oklch(17% 0.03 265);
  --paper-2: oklch(21% 0.035 265);
  --paper-3: oklch(26% 0.04 265);

  /* --- ink --- */
  --ink:      oklch(97% 0.005 265);
  --ink-soft: oklch(78% 0.02 265);
  --ink-dim:  oklch(60% 0.02 265);

  /* --- accents --- */
  --blue:     oklch(52% 0.20 262);
  --blue-hi:  oklch(70% 0.17 255);
  --purple:   oklch(58% 0.19 260);
  --purple-hi:oklch(76% 0.14 250);

  /* --- glass --- */
  --glass-bg:     oklch(24% 0.03 265 / 0.45);
  --glass-bg-2:   oklch(28% 0.035 265 / 0.35);
  --glass-brd:    oklch(80% 0.05 265 / 0.14);
  --glass-brd-hi: oklch(88% 0.06 265 / 0.28);
  --glass-hi:     oklch(98% 0.02 265 / 0.10);

  /* --- semantic --- */
  --success: oklch(70% 0.16 155);
  --warn:    oklch(78% 0.14 80);
  --danger:  oklch(65% 0.20 25);
  --danger-soft: oklch(65% 0.20 25 / 0.15);

  /* --- legacy token mappings (для страниц которые ещё юзают старые имена) --- */
  --bg:              var(--paper-0);
  --bg-2:            var(--paper-1);
  --surface:         var(--glass-bg);
  --surface-2:       var(--glass-bg-2);
  --surface-3:       var(--paper-2);
  --border:          var(--glass-brd);
  --border-strong:   var(--glass-brd-hi);
  --text:            var(--ink);
  --text-muted:      var(--ink-soft);
  --text-dim:        var(--ink-dim);
  --accent:          var(--blue-hi);
  --accent-hover:    var(--blue);
  --accent-soft:     oklch(60% 0.17 258 / 0.15);
  --accent-glow:     oklch(60% 0.17 258 / 0.35);

  /* --- type --- */
  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-tech:    "Michroma", "Space Grotesk", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  /* --- space --- */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;

  --radius:    12px;
  --radius-lg: 18px;
  --radius-xl: 26px;

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

*{ box-sizing: border-box; margin: 0; padding: 0; }
html, body{ overflow-x: clip; }
html{ scroll-behavior: smooth; }

body{
  background: var(--paper-0);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  min-height: 100vh;
}
body.body-flex{ min-height: 100vh; display: flex; flex-direction: column; }

::selection{ background: var(--blue); color: #fff; }

.mono{ font-family: var(--font-mono); }

.container{
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============ AMBIENT FIELD ============ */
.field-bg{ position: fixed; inset: 0; z-index: -2; overflow: hidden; pointer-events: none; }
.blob{ position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55; will-change: transform; }
.blob.b1{ width: 46vw; height: 46vw; top: -12vw; left: -8vw;
  background: radial-gradient(circle, var(--blue), transparent 70%); }
.blob.b2{ width: 40vw; height: 40vw; top: 40vh; right: -12vw;
  background: radial-gradient(circle, var(--purple), transparent 70%); opacity: 0.4; }
.blob.b3{ width: 38vw; height: 38vw; bottom: -14vw; left: 20vw;
  background: radial-gradient(circle, var(--blue-hi), transparent 70%); opacity: 0.3; }
.grid-veil{
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(oklch(80% 0.05 265 / 0.03) 1px, transparent 1px),
    linear-gradient(90deg, oklch(80% 0.05 265 / 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 40%, transparent 100%);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .blob{ animation: none !important; }
}

/* ============ TOP-ATTACHED NAV ============ */
.nav-wrap{
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: oklch(14% 0.02 265 / 0.78);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--glass-brd);
  transition: border-color .4s var(--ease-out), box-shadow .4s var(--ease-out);
}
.nav-wrap.scrolled{
  border-bottom-color: var(--glass-brd-hi);
  box-shadow: 0 8px 24px oklch(10% 0.02 265 / 0.45);
}
.nav{
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-md);
  padding: 0.75rem 0;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}
.brand{
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-tech);
  font-size: 0.92rem; letter-spacing: 0.12em;
  text-transform: uppercase; white-space: nowrap;
  color: var(--ink); text-decoration: none;
}
.brand .logo{
  width: 26px; height: 26px; object-fit: contain; flex-shrink: 0; display: block;
}
.nav-links{ display: flex; align-items: center; gap: 0.35rem; list-style: none; }
.nav-links a{
  color: var(--ink-soft); text-decoration: none;
  font-size: 0.9rem; padding: 0.5rem 0.85rem; border-radius: 100px;
  transition: color .25s var(--ease-out), background .25s var(--ease-out);
  white-space: nowrap;
}
.nav-links a:hover{ color: var(--ink); background: var(--glass-hi); }
.nav-actions{ display: flex; align-items: center; gap: 0.4rem; }
.nav-login{
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.55rem 1rem; border-radius: 100px;
  font-size: 0.9rem; font-weight: 500;
  color: var(--ink-soft); text-decoration: none;
  border: 1px solid var(--glass-brd); background: transparent;
  transition: color .25s var(--ease-out), border-color .25s var(--ease-out), background .25s var(--ease-out);
  white-space: nowrap;
}
.nav-login:hover{ color: var(--ink); border-color: var(--glass-brd-hi); background: var(--glass-hi); }
.nav-login.signed{
  color: var(--ink); border-color: var(--blue-hi);
  background: oklch(60% 0.17 258 / 0.15); font-weight: 600;
}
.nav-tg{
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.55rem 1.1rem; border-radius: 100px;
  font-size: 0.9rem; font-weight: 600; color: var(--ink); text-decoration: none;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  border: 1px solid var(--glass-brd-hi);
  box-shadow: 0 4px 18px oklch(60% 0.17 258 / 0.4);
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out);
  white-space: nowrap;
}
.nav-tg:hover{ transform: translateY(-1px); box-shadow: 0 6px 24px oklch(60% 0.17 258 / 0.55); }
@media (max-width: 900px){ .nav-links{ display: none; } }
@media (max-width: 640px){
  .brand .brand-txt{ display: none; }
  .nav-login{ padding: 0.5rem 0.75rem; font-size: 0.85rem; }
}

/* ============ BUTTONS ============ */
.btn{
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 0.9rem 1.8rem;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 1rem; font-weight: 600;
  text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s var(--ease-out), box-shadow .25s var(--ease-out), background .25s var(--ease-out);
  white-space: nowrap;
}
.btn-primary{
  color: var(--ink);
  background: linear-gradient(135deg, var(--blue), var(--purple));
  box-shadow: 0 6px 24px oklch(60% 0.17 258 / 0.45), inset 0 1px 0 var(--glass-hi);
}
.btn-primary:hover{ transform: translateY(-2px);
  box-shadow: 0 10px 32px oklch(60% 0.17 258 / 0.6), inset 0 1px 0 var(--glass-hi); }
.btn-ghost{
  color: var(--ink); background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--glass-brd);
}
.btn-ghost:hover{ transform: translateY(-2px); border-color: var(--glass-brd-hi); background: var(--glass-bg-2); }
.btn-lg{ padding: 1rem 2rem; font-size: 1.05rem; }
.btn[disabled]{ opacity: 0.5; cursor: not-allowed; transform: none !important; box-shadow: none; }
.btn:focus-visible{ outline: 2px solid var(--blue-hi); outline-offset: 3px; }

/* ============ FORM FIELDS ============ */
.field{ display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field-label{
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: 0.14em;
  color: var(--ink-dim);
  font-weight: 400; text-transform: uppercase;
}
.field-input{
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-brd);
  border-radius: 12px;
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  width: 100%;
  transition: border-color .18s var(--ease-out), background .18s var(--ease-out), box-shadow .18s var(--ease-out);
}
.field-input:hover{ border-color: var(--glass-brd-hi); }
.field-input:focus{
  outline: none;
  border-color: var(--blue-hi);
  background: var(--glass-bg-2);
  box-shadow: 0 0 0 3px oklch(60% 0.17 258 / 0.15);
}
.field-input::placeholder{ color: var(--ink-dim); font-style: italic; }
.field.error .field-input{
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-soft);
}
.field-error{
  font-size: 12.5px; color: var(--danger);
  margin-top: 2px; display: none; font-style: italic;
}
.field.error .field-error{ display: block; }
.field-help{ font-size: 12.5px; color: var(--ink-dim); margin-top: 2px; font-style: italic; }
.field-input.mono-input{ font-family: var(--font-mono); font-size: 14px; letter-spacing: 0.06em; }

.form-alert{
  display: none;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--danger-soft);
  border: 1px solid oklch(65% 0.20 25 / 0.35);
  color: var(--danger);
  font-size: 13px; margin-bottom: 14px; line-height: 1.4;
}
.form-alert.visible{ display: block; }

.check-row{
  display: flex; align-items: flex-start; gap: 10px;
  margin: 10px 0 22px;
  font-size: 13px; color: var(--ink-soft); line-height: 1.5;
}
.check-row input{
  width: 18px; height: 18px;
  accent-color: var(--blue-hi);
  margin-top: 1px; flex-shrink: 0; cursor: pointer;
}
.check-row a{ color: var(--blue-hi); text-decoration: none; }
.check-row a:hover{ text-decoration: underline; }
.check-row.error span{ color: var(--danger); }

.pw-strength{
  height: 4px; border-radius: 2px;
  background: var(--glass-bg);
  margin-top: 4px; overflow: hidden; position: relative;
}
.pw-strength-fill{
  height: 100%; width: 0%;
  background: var(--danger);
  transition: width .18s var(--ease-out), background .18s var(--ease-out);
  border-radius: 2px;
}
.pw-strength-label{
  font-family: var(--font-mono);
  font-size: 10.5px; color: var(--ink-dim);
  letter-spacing: 0.14em; text-transform: uppercase;
  margin-top: 6px; min-height: 12px;
}

.info-box{
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid var(--glass-brd);
  border-left: 2px solid var(--blue-hi);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 20px;
  line-height: 1.55;
  display: flex; gap: 10px; align-items: flex-start;
}
.info-box-icon{ flex-shrink: 0; width: 16px; height: 16px; color: var(--blue-hi); margin-top: 2px; }
.info-box b{ color: var(--ink); }

/* ============ AUTH SHELL ============ */
.auth-wrap{
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 120px 24px 60px;
  position: relative;
}
.auth-card{
  position: relative; z-index: 1;
  width: 100%;
  max-width: 440px;
  background: linear-gradient(160deg, var(--glass-bg-2), var(--glass-bg));
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  backdrop-filter: blur(24px) saturate(150%);
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  box-shadow: 0 30px 80px oklch(8% 0.02 265 / 0.55), inset 0 1px 0 var(--glass-hi);
}
.auth-card-narrow{ max-width: 420px; }

.auth-eyebrow{
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em;
  color: var(--blue-hi);
  text-transform: uppercase; margin-bottom: 12px;
}
.auth-title{
  font-family: var(--font-display);
  font-size: 28px; font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.1;
  margin-bottom: 24px;
  color: var(--ink);
}
.auth-title.has-sub{ margin-bottom: 8px; }
.auth-title.has-info{ margin-bottom: 10px; }
.auth-sub{ font-size: 14.5px; color: var(--ink-soft); margin-bottom: 26px; line-height: 1.55; }
.auth-sub a{ color: var(--blue-hi); text-decoration: none; }
.auth-sub a:hover{ text-decoration: underline; }
.auth-info{ font-size: 14px; color: var(--ink-soft); margin-bottom: 22px; line-height: 1.55; }

.auth-links-row{
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; margin: -4px 0 22px;
  font-size: 12.5px;
}
.auth-links-row a{
  color: var(--ink-soft); text-decoration: none;
  border-bottom: 1px solid var(--glass-brd); padding-bottom: 2px;
  transition: color .18s var(--ease-out), border-color .18s var(--ease-out);
}
.auth-links-row a:hover{ color: var(--blue-hi); border-bottom-color: var(--blue-hi); }

.auth-submit{ width: 100%; margin-top: 8px; }

.auth-footer{
  margin-top: 26px; padding-top: 20px;
  border-top: 1px solid var(--glass-brd);
  text-align: center;
  font-size: 13.5px; color: var(--ink-soft);
}
.auth-footer a{ color: var(--blue-hi); text-decoration: none; font-weight: 500; }
.auth-footer a:hover{ text-decoration: underline; }

.auth-success{ text-align: center; padding: 16px 0 8px; }
.check-circle{
  width: 60px; height: 60px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  color: #fff;
  display: grid; place-items: center;
  font-size: 30px; font-weight: 500;
  margin: 0 auto 18px;
  box-shadow: 0 8px 28px oklch(60% 0.17 258 / 0.45), inset 0 1px 0 var(--glass-hi);
  animation: pop .35s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}
@keyframes pop{ from{ opacity: 0; transform: scale(0.7); } to{ opacity: 1; transform: scale(1); } }
.auth-success h2{
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600; letter-spacing: -0.015em;
  margin-bottom: 8px; color: var(--ink);
}
.auth-success p{ font-size: 14px; color: var(--ink-soft); }

/* ============ FOOTER ============ */
.footer-mini{
  border-top: 1px solid var(--glass-brd);
  padding: 18px 0;
}
.footer-mini-inner{
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-dim);
  letter-spacing: 0.08em; text-transform: uppercase;
  width: min(1120px, calc(100% - 2rem)); margin: 0 auto;
  padding-left: 1rem; padding-right: 1rem;
}
.footer-mini a{ color: var(--ink-soft); text-decoration: none; }
.footer-mini a:hover{ color: var(--ink); }

/* ============ LANG SWITCH — text style ============ */
.lang-switch{
  display: inline-flex; align-items: baseline;
  background: transparent; border: 0; border-radius: 0; padding: 0;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.08em; color: var(--ink-dim);
}
.lang-switch::before{
  content: 'lang'; color: var(--ink-dim); margin-right: 4px;
  text-transform: uppercase; letter-spacing: 0.14em;
}
.lang-btn{
  font-family: inherit; font-size: inherit; letter-spacing: inherit;
  padding: 0 2px; background: transparent; border: 0;
  color: var(--ink-dim); cursor: pointer;
  transition: color .15s var(--ease-out);
  text-transform: uppercase;
}
.lang-btn + .lang-btn{ border-left: 1px solid var(--glass-brd); padding-left: 8px; margin-left: 2px; }
.lang-btn:hover{ color: var(--ink); }
.lang-btn.active{
  color: var(--blue-hi);
  border-bottom: 1.5px solid var(--blue-hi);
  padding-bottom: 1px;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 560px){
  .auth-wrap{ padding: 100px 20px 40px; }
  .auth-card{ padding: 30px 24px; }
  .auth-title{ font-size: 24px; }
  .field-input{ padding: 12px 14px; font-size: 14px; }
}