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

:root {
  --bg: #0e1621;
  --bg2: #17212b;
  --bg3: #1e2c3a;
  --accent: #2b9af3;
  --accent-hover: #1a8de0;
  --text: #e8f0f7;
  --text-muted: #7d9ab5;
  --border: #2a3a4a;
  --error: #ed4245;
  --radius: 12px;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-image: radial-gradient(ellipse at 20% 80%, rgba(43,154,243,0.06) 0%, transparent 50%),
                    radial-gradient(ellipse at 80% 20%, rgba(43,154,243,0.06) 0%, transparent 50%);
}

.auth-container {
  width: 100%; max-width: 480px;
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}

.auth-brand { text-align: center; }
.auth-brand i { font-size: 3rem; color: var(--accent); }
.auth-brand h1 { font-size: 1.8rem; font-weight: 800; margin-top: 8px; }
.auth-brand p { color: var(--text-muted); font-size: 0.9rem; }

.auth-card {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

/* TABS */
.auth-tabs { display: flex; border-bottom: 1px solid var(--border); }
.tab-btn {
  flex: 1; padding: 16px; background: none; border: none;
  color: var(--text-muted); font-size: 0.95rem; font-weight: 600;
  cursor: pointer; transition: all .2s; position: relative;
}
.tab-btn.active { color: var(--accent); }
.tab-btn.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: var(--accent);
}
.tab-btn:hover:not(.active) { color: var(--text); background: rgba(255,255,255,0.03); }

/* FORM */
.auth-form { padding: 24px; }
.hidden { display: none !important; }

.step-title { font-size: 1rem; font-weight: 700; color: var(--text-muted); margin-bottom: 18px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; }
.req { color: var(--error); }

.input-wrap {
  position: relative; display: flex; align-items: center;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 10px; transition: border-color .2s;
}
.input-wrap:focus-within { border-color: var(--accent); }
.input-wrap > i:first-child {
  padding: 0 12px; color: var(--text-muted); font-size: 0.85rem; flex-shrink: 0;
}
.input-wrap input, .input-wrap select {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text); font-size: 0.92rem;
  padding: 13px 12px 13px 0;
  font-family: inherit;
  display: block; width: 100%;
  -webkit-appearance: none; appearance: none;
  box-sizing: border-box;
}
.input-wrap input[type="number"] { -moz-appearance: textfield; }
.input-wrap input[type="number"]::-webkit-inner-spin-button,
.input-wrap input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.input-wrap select { cursor: pointer; }
.input-wrap select option { background: var(--bg3); }
.toggle-pw {
  padding: 0 12px; color: var(--text-muted); cursor: pointer;
  font-size: 0.85rem; flex-shrink: 0; transition: color .2s;
}
.toggle-pw:hover { color: var(--text); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; align-items: start; }
.form-row .form-group { margin-bottom: 0; }

/* STEPS */
.steps {
  display: flex; align-items: center; margin-bottom: 24px;
}
.step {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.step span {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--bg3); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; color: var(--text-muted);
  transition: all .3s;
}
.step small { font-size: 0.7rem; color: var(--text-muted); }
.step.active span { background: var(--accent); border-color: var(--accent); color: #fff; }
.step.active small { color: var(--accent); }
.step.done span { background: #57f287; border-color: #57f287; color: #000; }
.step-line { flex: 1; height: 2px; background: var(--border); margin: 0 8px; margin-bottom: 16px; transition: background .3s; }
.step-line.done { background: #57f287; }

/* BUTTONS */
.btn-submit {
  width: 100%; padding: 13px; margin-top: 8px;
  background: var(--accent); color: #fff; border: none;
  border-radius: 10px; font-size: 0.95rem; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  gap: 8px; transition: background .2s, transform .15s;
}
.btn-submit:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-row { display: flex; gap: 10px; margin-top: 8px; }
.btn-back {
  padding: 13px 20px; background: var(--bg3); color: var(--text-muted);
  border: 1px solid var(--border); border-radius: 10px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  display: flex; align-items: center; gap: 6px; transition: all .2s;
  white-space: nowrap;
}
.btn-back:hover { color: var(--text); border-color: var(--text-muted); }
.btn-row .btn-submit { flex: 1; margin-top: 0; }

.form-error {
  color: var(--error); font-size: 0.82rem; margin-bottom: 8px;
  min-height: 18px; display: flex; align-items: center; gap: 6px;
}
.form-error:not(:empty)::before { content: '\f071'; font-family: 'Font Awesome 6 Free'; font-weight: 900; }

.form-switch { text-align: center; margin-top: 16px; font-size: 0.85rem; color: var(--text-muted); }
.form-switch a { color: var(--accent); text-decoration: none; font-weight: 600; }
.form-switch a:hover { text-decoration: underline; }

.back-home {
  color: var(--text-muted); text-decoration: none; font-size: 0.85rem;
  display: flex; align-items: center; gap: 6px; transition: color .2s;
}
.back-home:hover { color: var(--text); }

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

/* ── LOGO IMAGE ──────────────────────────────────────────────────────────── */
.auth-logo { width: 72px; height: 72px; object-fit: contain; border-radius: 16px; }