/* ==============================
Login � Dark Theme (NIX)
============================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* -- Variables -- */
:root {
  --white:        #FFFFFF;
  --purple:       #71717A;
  --purple-mid:   #52525B;
  --purple-dark:  #3F3F46;
  --purple-glow:  rgba(255,255,255,.10);
  --purple-soft:  rgba(255,255,255,.08);
  --purple-softer:rgba(255,255,255,.05);

  --bg-base:      #0B0B0C;
  --bg-card:      #141416;
  --bg-input:     #1C1C1F;
  --border-input: rgba(255,255,255,.08);
  --border-focus: rgba(255,255,255,.38);

  --text-primary: #F2F2F3;
  --text-sub:     rgba(228,228,231,.55);
  --text-label:   rgba(228,228,231,.70);

  --green:        #22c55e;
  --red:          #ef4444;

  --shadow-card:  0 32px 80px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.055);
  --shadow-btn:   0 6px 28px rgba(0,0,0,.45);
  --radius:       18px;
  --radius-input: 12px;
  --transition:   .22s cubic-bezier(.4,0,.2,1);
}

html, body {
  height: 100%;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* -- Background - neutral mesh gradients -- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at -10% 110%, rgba(255,255,255,.05) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 110%  10%, rgba(255,255,255,.035) 0%, transparent 50%),
    radial-gradient(ellipse 55% 45% at  50%  50%, rgba(0,0,0,.55)  0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* -- Layout -- */
.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 520px 1fr;
  grid-template-rows: 1fr auto 1fr;
  align-items: center;
  justify-items: center;
  padding: 24px;
}

/* -- Card -- */
.card {
  grid-column: 2;
  grid-row: 2;
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255,255,255,.07);
  padding: 52px 48px 44px;
  animation: cardIn .55s cubic-bezier(.22,1,.36,1) both;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(24px) scale(.98); }
  to   { opacity: 1; transform: translateY(0)    scale(1);   }
}

/* -- Logo -- */
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
}

.logo-img {
  height: 48px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  flex-shrink: 0;
  filter: brightness(0) invert(1);
}

.logo-text { line-height: 1; }

.logo-name {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 24px;
  letter-spacing: .06em;
  color: var(--text-primary);
}

.logo-sub {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-top: 4px;
}

/* -- Headline -- */
.headline {
  margin-bottom: 8px;
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.subline {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 36px;
  font-weight: 400;
}

/* -- Divider -- */
.divider {
  height: 1px;
  background: rgba(255,255,255,.07);
  margin-bottom: 36px;
}

/* -- Form -- */
.field { margin-bottom: 20px; }

label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-label);
  margin-bottom: 9px;
}

.input-wrap {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(200,196,240,.30);
  pointer-events: none;
  transition: color var(--transition);
  display: flex;
}

input {
  width: 100%;
  height: 52px;
  padding: 0 48px 0 44px;
  border: 1.5px solid var(--border-input);
  border-radius: var(--radius-input);
  background: var(--bg-input);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14.5px;
  font-weight: 400;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input::placeholder { color: rgba(200,196,240,.25); }

input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--purple-soft);
}

.input-wrap:focus-within .input-icon { color: var(--purple); }

/* Toggle password */
.toggle-pass {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: rgba(200,196,240,.35);
  padding: 4px;
  display: flex;
  transition: color var(--transition);
}
.toggle-pass:hover { color: var(--purple); }

/* -- Error message -- */
.error-msg {
  display: none;
  align-items: center;
  gap: 7px;
  background: rgba(239,68,68,.08);
  border: 1px solid rgba(239,68,68,.22);
  border-radius: 10px;
  padding: 11px 14px;
  font-size: 13px;
  color: #fca5a5;
  font-weight: 500;
  margin-bottom: 20px;
  animation: shake .4s cubic-bezier(.36,.07,.19,.97);
}

.error-msg.visible { display: flex; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(6px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(4px); }
}

/* -- Button -- */
.btn-submit {
  width: 100%;
  height: 52px;
  background: var(--purple-dark);
  color: var(--white);
  border: none;
  border-radius: var(--radius-input);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
  margin-bottom: 0;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  box-shadow: var(--shadow-btn);
  position: relative;
  overflow: hidden;
}

.btn-submit::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.btn-submit:hover {
  background: var(--purple-mid);
  box-shadow: 0 8px 36px rgba(0,0,0,.55);
  transform: translateY(-1px);
}

.btn-submit:active { transform: translateY(0); box-shadow: 0 2px 14px rgba(0,0,0,.35); }

.btn-submit.loading { pointer-events: none; }

/* Spinner */
.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,.30);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.btn-submit.loading .spinner    { display: block; }
.btn-submit.loading .btn-label  { opacity: .7; }

/* -- Yellow accent bar � hidden in dark theme -- */
.btn-accent { display: none; }

/* -- Forgot password -- */
.forgot { text-align: center; }

.forgot a {
  font-size: 13.5px;
  color: var(--text-sub);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.forgot a:hover { color: var(--purple); }

/* -- Footer -- */
.card-footer {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.badge.system-inactive { color: #fca5a5; }
.badge.system-inactive .badge-dot {
  background: var(--red);
  animation: none;
}

@keyframes pulse {
  0%,100% { opacity: 1;  transform: scale(1);  }
  50%      { opacity: .5; transform: scale(.75); }
}

.version {
  font-size: 11px;
  color: var(--text-sub);
  font-weight: 500;
}

/* -- Responsive -- */
@media (max-width: 1024px) {
  .page {
    grid-template-columns: minmax(0,1fr) minmax(320px,520px) minmax(0,1fr);
  }
}

@media (max-width: 768px) {
  html, body { min-height: 100%; height: auto; }
  .page {
    min-height: 100dvh;
    grid-template-columns: 1fr;
    grid-template-rows: minmax(20px,1fr) auto minmax(20px,1fr);
    padding: 20px;
  }
  .card {
    grid-column: 1;
    width: min(100%, 520px);
    padding: 42px 34px 36px;
  }
}

@media (max-width: 480px) {
  .page { padding: 14px; }
  .card { padding: 32px 22px 28px; border-radius: 14px; }
  .logo-wrap { margin-bottom: 28px; }
  .headline { font-size: 20px; }
  .subline { margin-bottom: 28px; }
  .divider { margin-bottom: 28px; }
  .card-footer { align-items: flex-start; gap: 10px; flex-direction: column; }
}