/* Login — shadcn TsfRecipes03 style (PHP/CSS port) */
:root {
  --xa-login-bg: #000000;
  --xa-login-width: 26rem;
  --xa-card-bg: hsl(0 0% 6%);
  --xa-card-border: hsl(0 0% 14.9%);
  --xa-card-fg: hsl(0 0% 98%);
  --xa-muted: hsl(0 0% 63.9%);
  --xa-input-bg: hsl(0 0% 6%);
  --xa-input-border: hsl(0 0% 14.9%);
  --xa-ring: hsl(0 0% 83.1%);
  --xa-primary: hsl(0 0% 98%);
  --xa-primary-fg: hsl(0 0% 9%);
  --xa-destructive: hsl(0 84.2% 60.2%);
}

body.xa-login {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--xa-login-bg);
  color: var(--xa-card-fg);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.xa-login-stage {
  position: relative;
  z-index: 10;
  box-sizing: border-box;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: manipulation;
  padding:
    max(1.25rem, env(safe-area-inset-top, 0px))
    max(1.25rem, env(safe-area-inset-right, 0px))
    max(1.25rem, env(safe-area-inset-bottom, 0px))
    max(1.25rem, env(safe-area-inset-left, 0px));
}

.xa-login-stack {
  position: relative;
  width: min(100%, var(--xa-login-width));
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.35rem;
  animation: xa-login-in 0.55s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.xa-login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  width: 100%;
  text-align: center;
}

@keyframes xa-login-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Brand mark above card */
.xa-login-brand__logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  display: block;
  border-radius: 0.625rem;
}

.xa-login-brand__name {
  margin: 0;
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: hsl(0 0% 98%);
}

.xa-login-brand__tag {
  margin: 0;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: hsl(0 0% 52%);
}

/* shadcn Card */
.xa-shad-card {
  width: 100%;
  border-radius: 0.625rem;
  border: 1px solid var(--xa-card-border);
  background: hsl(0 0% 5% / 0.92);
  color: var(--xa-card-fg);
  box-shadow:
    0 0 0 1px hsl(0 0% 100% / 0.04),
    0 20px 50px hsl(0 0% 0% / 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.xa-shad-card__header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.75rem 1.75rem 0;
}

.xa-shad-card__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-size: 1.625rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.025em;
}

.xa-shad-card__title svg {
  width: 1rem;
  height: 1rem;
  color: var(--xa-muted);
  flex-shrink: 0;
}

.xa-shad-card__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: var(--xa-muted);
}

.xa-shad-card__content {
  padding: 1.35rem 1.75rem 1.75rem;
}

.xa-shad-card__content form {
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 0;
}

/* Field group */
.xa-field-group {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.xa-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.xa-field__label {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  color: var(--xa-card-fg);
}

/* shadcn Input */
.xa-shad-input {
  display: flex;
  width: 100%;
  height: 2.75rem;
  box-sizing: border-box;
  border-radius: 0.375rem;
  border: 1px solid var(--xa-input-border);
  background: var(--xa-input-bg);
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  line-height: 1.25rem;
  color: var(--xa-card-fg);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.xa-shad-input::placeholder {
  color: var(--xa-muted);
}

.xa-shad-input:hover {
  border-color: hsl(0 0% 22%);
}

.xa-shad-input:focus {
  border-color: var(--xa-ring);
  box-shadow: 0 0 0 2px hsl(0 0% 98% / 0.12);
}

.xa-pass-wrap {
  position: relative;
}

.xa-pass-wrap .xa-shad-input {
  padding-right: 2.5rem;
}

.xa-pass-toggle {
  position: absolute;
  top: 50%;
  right: 0.5rem;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  border: 0;
  border-radius: 0.25rem;
  background: transparent;
  color: var(--xa-muted);
  cursor: pointer;
}

.xa-pass-toggle:hover {
  color: var(--xa-card-fg);
  background: hsl(0 0% 14.9%);
}

.xa-pass-toggle svg {
  width: 1rem;
  height: 1rem;
}

.xa-pass-toggle .xa-eye-off { display: none; }
.xa-pass-toggle.is-shown .xa-eye-on { display: none; }
.xa-pass-toggle.is-shown .xa-eye-off { display: block; }

/* Remember me */
.xa-remember {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
}

.xa-remember input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--xa-card-fg);
  cursor: pointer;
}

.xa-remember label {
  font-size: 0.875rem;
  color: var(--xa-muted);
  cursor: pointer;
}

/* shadcn Button sm */
.xa-shad-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 2.5rem;
  padding: 0 1rem;
  border: 0;
  border-radius: 0.375rem;
  background: var(--xa-primary);
  color: var(--xa-primary-fg);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.25rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.xa-shad-btn:hover {
  background: hsl(0 0% 92%);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px hsl(0 0% 0% / 0.35);
}

.xa-shad-btn:active {
  opacity: 0.92;
}

.xa-shad-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--xa-login-bg), 0 0 0 4px var(--xa-ring);
}

/* 2FA — same card system */
.xa-2fa-head {
  margin-bottom: 0.5rem;
  text-align: center;
}

.xa-2fa-title {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.xa-2fa-sub {
  margin: 0 0 1rem;
  font-size: 0.84rem;
  line-height: 1.5;
  color: var(--xa-muted);
}

.xa-qr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.xa-qr-box {
  padding: 0.7rem;
  border-radius: 0.5rem;
  background: #fff;
  line-height: 0;
}

.xa-qr-box img {
  display: block;
  width: 180px;
  height: 180px;
}

.xa-secret-hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--xa-muted);
  text-align: center;
}

.xa-secret {
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--xa-card-fg);
  background: hsl(0 0% 8%);
  border: 1px solid var(--xa-card-border);
  border-radius: 0.375rem;
  padding: 0.75rem;
  word-break: break-all;
}

.xa-otp-slots {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.5rem;
  width: 100%;
  margin: 0 auto 0.75rem;
}

.xa-otp-slot {
  width: 100%;
  height: 2.75rem;
  box-sizing: border-box;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--xa-card-fg);
  background: var(--xa-input-bg);
  border: 1px solid var(--xa-input-border);
  border-radius: 0.375rem;
  outline: none;
  padding: 0;
}

.xa-otp-slot:focus {
  border-color: var(--xa-ring);
  box-shadow: 0 0 0 2px hsl(0 0% 98% / 0.12);
}

.xa-2fa-back {
  display: block;
  text-align: center;
  margin-top: 0.85rem;
  font-size: 0.84rem;
  color: var(--xa-muted);
  text-decoration: none;
}

.xa-2fa-back:hover {
  color: var(--xa-card-fg);
}

.xa-boot-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  pointer-events: all;
}

.xa-boot-loader.is-on,
.xa-boot-loader:not([hidden]) {
  display: flex;
}

@media (prefers-reduced-motion: reduce) {
  .xa-login-stack {
    animation: none;
  }
  .xa-shad-btn:hover {
    transform: none;
  }
}

@media (max-width: 768px) {
  .xa-login-stack {
    animation: none;
    gap: 1rem;
  }

  .xa-login-stage {
    align-items: flex-start;
    padding-top: max(1rem, env(safe-area-inset-top, 0px));
    padding-bottom: max(1.5rem, env(safe-area-inset-bottom, 0px));
  }

  .xa-shad-input,
  .xa-otp-slot {
    font-size: 16px; /* prevent iOS zoom on focus */
  }

  .xa-otp-slots {
    gap: 0.35rem;
    margin-bottom: 0.5rem;
  }
}

@media (max-height: 680px) {
  .xa-login-stage {
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  :root {
    --xa-login-width: min(22rem, 100%);
  }

  .xa-otp-slot {
    height: 2.5rem;
    font-size: 16px;
  }
}