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

:root {
  --bg: #f6f2e9;
  --surface: #fffdfa;
  --ink: #1f2430;
  --muted: #6b7285;
  --border: #e7dece;
  --accent: #1d4ed8;
  --accent-2: #436dff;
  --danger: #e5484d;
  --success: #1d8a6f;
  --font: 'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
  --shadow-lg: 0 28px 60px rgba(31, 36, 48, 0.15);
}

@keyframes fadeLift {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 10% -10%, #ffe5cc 0%, transparent 34%),
    radial-gradient(circle at 95% 0%, #d8e5ff 0%, transparent 38%),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 14px;
}

.auth-card {
  width: 100%;
  max-width: 520px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  padding: 34px 30px;
  animation: fadeLift 0.6s ease both;
}

.lang-switch {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 18px;
}

.lang-btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.lang-btn.active,
.lang-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.auth-logo {
  display: flex;
  justify-content: center;
  margin: 2px 0 10px;
}

.auth-logo img {
  width: 84px;
  height: 84px;
  object-fit: contain;
}

.auth-sub {
  text-align: center;
  color: #5f697c;
  font-size: 13px;
  margin-bottom: 24px;
}

.form-label {
  color: #5f697c;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
}

.input-group-text {
  background: #fff;
  border: 1px solid var(--border);
  color: #8891a6;
}

.form-control {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--ink);
  border-radius: 10px;
  padding: 11px 14px;
  font-family: var(--font);
}

.form-control::placeholder { color: #a2a9b8; }

.form-control:focus {
  background: #fff;
  border-color: var(--accent);
  color: var(--ink);
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.14);
}

.form-control.is-invalid { border-color: var(--danger); }

.btn-primary {
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 12px;
  font-weight: 700;
  font-family: var(--font);
  color: #fff;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 24px rgba(29, 78, 216, 0.34);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(29, 78, 216, 0.4);
}

.btn-primary:disabled { opacity: .6; }

.alert-err {
  background: #fff2f2;
  border: 1px solid #f7c6c8;
  color: var(--danger);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
  display: none;
  margin-bottom: 16px;
}

.alert-success {
  border-radius: 12px;
  border: 1px solid #b8e4d7;
  background: #effcf7;
  color: #176650;
}

.pwd-strength {
  height: 4px;
  border-radius: 5px;
  margin-top: 6px;
  transition: all .3s;
}

.strength-hint {
  font-size: 11px;
  margin-top: 4px;
  color: #7d869b;
}

.divider {
  text-align: center;
  color: #8b93a8;
  font-size: 13px;
  margin: 20px 0;
}

.link-login {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.link-login:hover { text-decoration: underline; }

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: #7a849a;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}

.back-home:hover { color: var(--accent); }

/* ─── Step Wizard ─────────────────────────────────────────────────────────── */
.step-wizard {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin: 4px 0 28px;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  flex: 1;
  max-width: 90px;
}

.step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--border);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  transition: all 0.3s ease;
  border: 2px solid var(--border);
}

.step-lbl {
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  transition: color 0.3s ease;
}

.step-conn {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin-top: 19px;
  transition: background 0.3s ease;
}

.step-item.sw-active .step-circle {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(29, 78, 216, 0.35);
}

.step-item.sw-active .step-lbl {
  color: var(--accent);
}

.step-item.sw-done .step-circle {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}

.step-item.sw-done .step-lbl {
  color: var(--success);
}

.step-conn.sw-done {
  background: var(--success);
}

/* ─── Step Heading ────────────────────────────────────────────────────────── */
.step-heading {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 20px;
  text-align: center;
}

/* ─── Code sent banner ────────────────────────────────────────────────────── */
.code-sent-banner {
  background: #effcf7;
  border: 1px solid #b8e4d7;
  color: #176650;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  display: flex;
  align-items: center;
}

/* ─── Code input ──────────────────────────────────────────────────────────── */
.code-input {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 10px;
  text-align: center;
}

/* ─── Back button ─────────────────────────────────────────────────────────── */
.btn-back {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.2s;
  font-family: var(--font);
}

.btn-back:hover { color: var(--accent); }

@media (max-width: 576px) {
  .auth-card {
    padding: 28px 18px;
    border-radius: 20px;
  }
}