/* ============================================================
   auth.css — Estilos compartidos Login + 2FA · equilibRHa ACP
   Diseño consistente con las páginas SSO existentes (dark theme)
   ============================================================ */

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

:root {
  --bg:          #0d1b2a;
  --surface:     #1b2e4a;
  --surface-2:   #243a5f;
  --border:      #2d4a7a;
  --border-2:    #3d5a8a;
  --text:        #e8eef5;
  --text-muted:  #9fb3c8;
  --text-dim:    #5a7a9a;
  --accent:      #1858AC;
  --accent-dim:  rgba(24,88,172,.20);
  --accent-mid:  rgba(24,88,172,.35);
  --accent-light:#1a62c4;
  --success:     #30d158;
  --success-dim: rgba(48,209,88,.15);
  --error:       #ff453a;
  --error-dim:   rgba(255,69,58,.15);
  --warning:     #ff9f0a;
  --warning-dim: rgba(255,159,10,.15);
  --radius-card: 20px;
  --radius-el:   10px;
  --shadow-card: 0 24px 64px rgba(0,0,0,.5);
  --transition:  180ms ease;
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  padding: 1.5rem;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 40% at 20% 20%, rgba(24,88,172,.25), transparent),
    radial-gradient(ellipse 50% 50% at 80% 80%, rgba(24,88,172,.15), transparent);
}

/* ─── Page wrapper ─── */
.page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  animation: pageIn 320ms ease both;
}

@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Brand ─── */
.brand { text-align: center; }

.brand-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  border-radius: 18px;
  background: linear-gradient(135deg, #1858AC, #1a62c4);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px var(--accent-mid);
}

.brand-icon svg { width: 34px; height: 34px; }

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.02em;
}

.brand-name span { color: var(--accent); }

.brand-subtitle {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-top: 0.25rem;
}

/* ─── Card ─── */
.card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 2rem;
}

.card-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition);
}

.icon-wrap svg { width: 26px; height: 26px; color: var(--accent); }
.icon-wrap.success { background: var(--success-dim); }
.icon-wrap.success svg { color: var(--success); }

.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: .375rem;
}

.card-subtitle {
  font-size: .875rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

/* ─── Form ─── */
.form-group { margin-bottom: 1.125rem; }

label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: .375rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.input-wrap { position: relative; }

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  padding: .6875rem .875rem;
  background: var(--bg);
  border: 1.5px solid var(--border-2);
  border-radius: var(--radius-el);
  font-size: .9375rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input::placeholder { color: var(--text-muted); opacity: .5; }

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

input.has-toggle { padding-right: 2.75rem; }

input.input-error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px var(--error-dim);
}

.input-toggle {
  position: absolute;
  right: .625rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: .25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}
.input-toggle:hover { color: var(--text); }
.input-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ─── Buttons ─── */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  width: 100%;
  padding: .75rem 1rem;
  border: none;
  border-radius: var(--radius-el);
  font-size: .9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition), background-color var(--transition);
  margin-top: .5rem;
  font-family: inherit;
}

.btn:active { transform: scale(.98); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:disabled { opacity: .45; cursor: not-allowed; pointer-events: none; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-light); }

.btn-ghost {
  background: var(--surface-2);
  color: var(--text);
}
.btn-ghost:hover:not(:disabled) { background: var(--border-2); }

.btn-text {
  background: transparent;
  color: var(--text-muted);
  font-size: .875rem;
  font-weight: 500;
  margin-top: .625rem;
}
.btn-text:hover:not(:disabled) { color: var(--text); }

/* ─── Spinner ─── */
.spinner {
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255,255,255,.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .65s linear infinite;
  flex-shrink: 0;
}

.spinner-lg {
  width: 28px;
  height: 28px;
  border-width: 3px;
  border-color: var(--surface-2);
  border-top-color: var(--accent);
  margin: 0 auto;
}

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

/* ─── Alerts ─── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: .625rem;
  padding: .75rem .875rem;
  border-radius: var(--radius-el);
  font-size: .875rem;
  line-height: 1.5;
  margin-bottom: 1.125rem;
}

.alert[hidden] { display: none; }
.alert svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: .175rem; }

.alert-error   { background: var(--error-dim);   border: 1px solid rgba(255,69,58,.25);  color: #ff6b63; }
.alert-success { background: var(--success-dim); border: 1px solid rgba(48,209,88,.25);  color: #34d468; }
.alert-warning { background: var(--warning-dim); border: 1px solid rgba(255,159,10,.25); color: #ff9f0a; }

/* ─── OTP input boxes ─── */
.otp-group {
  display: flex;
  gap: .5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.otp-box {
  width: 48px;
  height: 56px;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--border-2);
  border-radius: var(--radius-el);
  outline: none;
  caret-color: transparent;
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
  font-family: inherit;
}

.otp-box:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.otp-box.filled {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.otp-box.otp-error {
  border-color: var(--error) !important;
  animation: shake .35s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-5px); }
  40%       { transform: translateX(5px); }
  60%       { transform: translateX(-3px); }
  80%       { transform: translateX(3px); }
}

/* ─── Countdown timer ─── */
.timer-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .375rem;
  font-size: .8125rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.timer-val {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
}

.timer-val.urgent { color: var(--error); }

/* ─── QR code box ─── */
.qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .875rem;
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 1.25rem;
}

.qr-box p {
  font-size: .8125rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.55;
}

/* Secret key row */
.secret-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-el);
  padding: .625rem .875rem;
  margin-bottom: 1.375rem;
}

.secret-label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: .375rem;
}

.secret-val {
  flex: 1;
  font-family: 'SF Mono', 'Fira Code', 'Menlo', 'Consolas', monospace;
  font-size: .8rem;
  color: var(--text);
  letter-spacing: .1em;
  word-break: break-all;
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: .25rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color var(--transition);
}
.copy-btn:hover { color: var(--accent); }
.copy-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ─── Steps indicator ─── */
.steps {
  display: flex;
  align-items: center;
  margin-bottom: 1.75rem;
}

.step {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .8125rem;
  font-weight: 500;
  white-space: nowrap;
}

.step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .6875rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: background-color var(--transition), color var(--transition);
}

.step.active  { color: var(--text); }
.step.active  .step-num { background: var(--accent);  color: #fff; }
.step.done    { color: var(--success); }
.step.done    .step-num { background: var(--success); color: #fff; }
.step.pending { color: var(--text-muted); }
.step.pending .step-num { background: var(--surface-2); color: var(--text-muted); }

.step-line { flex: 1; height: 1px; background: var(--border-2); margin: 0 .75rem; }

/* ─── Loading placeholder ─── */
.loading-placeholder {
  text-align: center;
  padding: 2rem 0;
}

.loading-placeholder p {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: .875rem;
}

/* ─── Footer ─── */
footer {
  font-size: .75rem;
  color: var(--text-dim);
  text-align: center;
}

/* ─── Responsive ─── */
@media (max-width: 420px) {
  .card { padding: 1.5rem 1.125rem; }
  .otp-box { width: 40px; height: 50px; font-size: 1.25rem; gap: .375rem; }
  .otp-group { gap: .375rem; }
}