/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:       #4f46e5;
  --primary-dark:  #4338ca;
  --primary-light: #eef2ff;
  --danger:        #dc2626;
  --danger-bg:     #fef2f2;
  --text:          #111827;
  --muted:         #6b7280;
  --border:        #e5e7eb;
  --card-bg:       #ffffff;
  --body-bg:       #f3f4f6;
  --radius:        12px;
  --shadow:        0 10px 40px rgba(0,0,0,.12);
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* ── Card ─────────────────────────────────────────────────── */
.login-wrapper {
  width: 100%;
  max-width: 440px;
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 44px 40px;
  animation: slideUp .35s ease;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Brand ────────────────────────────────────────────────── */
.brand { text-align: center; margin-bottom: 32px; }

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px; height: 60px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 16px;
  margin-bottom: 16px;
}

.brand h1 { font-size: 1.6rem; color: var(--text); font-weight: 700; }
.brand p  { color: var(--muted); margin-top: 6px; font-size: .93rem; }

/* ── Alert ────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: .9rem;
}

.alert-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid #fecaca;
}

.alert svg { flex-shrink: 0; margin-top: 1px; }

/* ── Form ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  color: var(--muted);
  pointer-events: none;
}

.form-control {
  width: 100%;
  padding: 11px 40px 11px 40px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: .95rem;
  color: var(--text);
  background: #fafafa;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
  background: #fff;
}

.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  padding: 0;
}
.toggle-password:hover { color: var(--primary); }

.field-error { display: block; font-size: .83rem; color: var(--danger); margin-top: 5px; }

/* ── Remember / Forgot ────────────────────────────────────── */
.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.forgot-link {
  font-size: .88rem;
  color: var(--primary);
  text-decoration: none;
}
.forgot-link:hover { text-decoration: underline; }

/* ── Submit Button ────────────────────────────────────────── */
.btn-login {
  width: 100%;
  padding: 13px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-login:hover   { background: var(--primary-dark); }
.btn-login:active  { transform: scale(.98); }
.btn-login:disabled { opacity: .65; cursor: not-allowed; }

/* ── Spinner ──────────────────────────────────────────────── */
.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Signup Link ──────────────────────────────────────────── */
.signup-link {
  text-align: center;
  margin-top: 24px;
  font-size: .88rem;
  color: var(--muted);
}
.signup-link a { color: var(--primary); text-decoration: none; font-weight: 500; }
.signup-link a:hover { text-decoration: underline; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 480px) {
  .login-card { padding: 32px 24px; }
}